MALICIOUS — 31eda73ef171a2a30614f22e9b8f755e7e6c18b0aca483bbb7acd82c113307a8
MALICIOUS — 31eda73ef171a2a30614f22e9b8f755e7e6c18b0aca483bbb7acd82c113307a8 is a pe sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (100/100), attributed to the Maldoc family. 11 of 56 detection engines flagged it, exhibiting 5 ATT&CK techniques.
Identification
- SHA-256:
31eda73ef171a2a30614f22e9b8f755e7e6c18b0aca483bbb7acd82c113307a8 - SHA-1:
693acd3ba65005964de840a75e63cc227d4ac58f - MD5:
166f38d420969087cea158246d60bd15 - imphash:
01392ca861cf87b8d28ad9ea90016bb4 - ssdeep:
24576:+rCSrCSrClkCIabjKoh9WWYc+lPYa2ROf1IegqutJQ5FeQzcuC4r6HQ1SI8LUlFe:oCIabjKoh9WFR2RAR5FeA6wPcY/+ - TLSH:
T12E5CC549510B6203C6F69A24582C4E9D501DF0FD70367AAB8ED372AB7CF26B35C6016B - Submitted as: 31eda73ef171a2a30614f22e9b8f755e7e6c18b0aca483bbb7acd82c113307a8
- File type: pe · Size: 2399383 bytes
- Verdict: malicious (100/100) · Family: Maldoc
Detections (11 of 56 engines)
- capa (capabilities): capability:collection/keylog
- MalwareAnalyser heuristics (entropy/packer): ASPack
- ClamAV (daily): Win.Malware.Generic-9886878-0
- YARA: delivr.to detections: DLV_Maldoc_VBA_AutoExec
- YARA: JPCERT/CC: JPCERT_HUILoader_PlugX_SideLoad
- YARA: Yara-Rules community: YR_AntiDebug_Checks
- Detect It Easy (packer/type): DIE:Microsoft Linker
- Microsoft Defender: Worm:Win32/AutoRun!pz
- Emsisoft (Emergency Kit): Gen:Heur.Mint.Autorunner.1
- Trellix Stinger (McAfee): W32/Worm-GBW!166F38D42096
- Kaspersky (KVRT): Worm.Win32.AutoRun.vx
MITRE ATT&CK
Why this verdict
The malicious score of 100/100 is the fusion of 20 weighted signals:
- ClamAV (daily) flagged Win.Malware.Generic-9886878-0 (rule
Win.Malware.Generic-9886878-0) - engine signal, weight 0.90, confidence 0.95 - 2 behavioral detection(s) across 2 rule(s): Registry Run Key Persistence [high] (rule
tl-run-key) - dynamic signal, weight 0.63, confidence 0.90 - YARA: delivr.to detections flagged DLV_Maldoc_VBA_AutoExec (rule
DLV_Maldoc_VBA_AutoExec) - engine signal, weight 0.70, confidence 0.70 - Microsoft Defender flagged Worm:Win32/AutoRun!pz (rule
Worm:Win32/AutoRun!pz) - engine signal, weight 0.55, confidence 0.85 - Emsisoft (Emergency Kit) flagged Gen:Heur.Mint.Autorunner.1 (rule
Gen:Heur.Mint.Autorunner.1) - engine signal, weight 0.55, confidence 0.85 - Trellix Stinger (McAfee) flagged W32/Worm-GBW!166F38D42096 (rule
W32/Worm-GBW!166F38D42096) - engine signal, weight 0.55, confidence 0.85 - Kaspersky (KVRT) flagged Worm.Win32.AutoRun.vx (rule
Worm.Win32.AutoRun.vx) - engine signal, weight 0.55, confidence 0.85 - YARA: JPCERT/CC flagged JPCERT_HUILoader_PlugX_SideLoad (rule
JPCERT_HUILoader_PlugX_SideLoad) - engine signal, weight 0.60, confidence 0.70 - Observed at runtime: Registry Run Key Persistence (T1547.001) (rule
Registry Run Key Persistence) - dynamic signal, weight 0.40, confidence 0.90 - capture keystrokes (rule
capture keystrokes) - capa signal, weight 0.40, confidence 0.80 - Contacted 15 HTTP request(s) at runtime - network signal, weight 0.40, confidence 0.80
- YARA: Yara-Rules community flagged YR_AntiDebug_Checks (rule
YR_AntiDebug_Checks) - engine signal, weight 0.35, confidence 0.70 - Detect It Easy (packer/type) flagged DIE:Microsoft Linker (rule
DIE:Microsoft Linker) - engine signal, weight 0.35, confidence 0.70 - capa (capabilities) flagged capability:collection/keylog (rule
capability:collection/keylog) - engine signal, weight 0.35, confidence 0.70 - MalwareAnalyser heuristics (entropy/packer) flagged ASPack (rule
ASPack) - engine signal, weight 0.35, confidence 0.70 - Embedded network infrastructure: http://www.gnu.org/software/coreutils/, http://translationproject.org/team/, http://gnu.org/licenses/gpl.html - static signal, weight 0.35, confidence 0.60
- communicate over HTTP (rule
communicate over HTTP) - capa signal, weight 0.30, confidence 0.60 - Packing/obfuscation: ASPack, high-entropy-sections:.text, Microsoft Linker - static signal, weight 0.25, confidence 0.55
- Dropped 22 executable file(s) at runtime - dynamic signal, weight 0.20, confidence 0.60
- Extracted generic config (1 C2) (generic/advisory) - engine signal, weight 0.15, confidence 0.30
Dynamic analysis (windows)
27392 behavior events · 1 ATT&CK techniques · 23 dropped files.
Runtime network
- www.msftconnecttest.com
- rb.symcd.com
- rb.symcb.com
- inference.location.live.net
- c.pki.goog
- x2.c.lencr.org
- ye.c.lencr.org
- yr.c.lencr.org
- update.googleapis.com
- login.live.com
- desktop-hsgcbep
- v20.events.data.microsoft.com
- config.edge.skype.com
- windows.msn.com
- www.msn.com
- officeclient.microsoft.com
- odc.officeapps.live.com
- licensing.mp.microsoft.com
- assets.msn.com
- www.bing.com
Dropped files
- C:\Program Files\Adobe\Acrobat DC\Acrobat\NGL\cefWorkflow\adobe_licensing_wf_acro.exe -
b8a9d5807917687ab25ef2c5759f7f1520fda63f734924b93c86e5524d0e7f68 - C:\Program Files\Adobe\Acrobat DC\Acrobat\NGL\cefWorkflow\adobe_licensing_wf_helper_acro.exe -
377693e2ca6eefba36f61373194f572541a409cb10808b8c71d52897a6df3e8f - C:\Program Files\7-Zip\7z.exe -
45878203715ed895138709336904326e832cfe9906638e89ea1929cbb3c31ecc - bd115a575e86e61cea9136c5a2c47e090ba484dc2dee8b51a34111bb094266d5 -
bd115a575e86e61cea9136c5a2c47e090ba484dc2dee8b51a34111bb094266d5 - C:\Program Files\Adobe\Acrobat DC\Acrobat\AcroCEF\SingleClientServicesUpdater.exe -
b3446afceb51e0e90918e5c8bde26aeba20f960ff8b3457df8835296df013db4 - C:\Program Files\7-Zip\7zFM.exe -
a9730deba63f13dbe053fd849fa8907564c4596161dada19e8c122882a6b0f78 - C:\Program Files\7-Zip\7zG.exe -
e22a382d47f92f46ea4deb9d791cb6ad8a7d148e96d08bdb9f4292f7506c6acf - C:\Program Files\Adobe\Acrobat DC\Acrobat\plug_ins\pi_brokers\64BitMAPIBroker.exe -
6a78dba30ca10f3addef5b1683bd7bc97e98ce03c9e6ae7056845ee1b70b7d10 - C:\Program Files\Adobe\Acrobat DC\Acrobat\NGL\cefWorkflow\adobe_licensing_wf_acro.exe -
9f408aa173485b8044127e613af10e1addcf74b154048e62b6059ec9f35f992f - C:\Program Files\Adobe\Acrobat DC\Acrobat\Assets\MenuCoreApp\AcroShareTarget.exe -
bef3f8b06a0403974d5776647dcf2615ad04ecd4b00d2f8471fca539a8f1febb - C:\Program Files\Adobe\Acrobat DC\Acrobat\AcroCEF\SingleClientServicesUpdater.exe -
63156ae4b122e6f9584581782b64327bfbf60d31ae39de283fd5beeea5aa6746 - C:\Program Files\7-Zip\7z.exe -
634d38c0c414178e2f35de5cc0fb29aa082eec227e630c4481e1af7694980ac9 - C:\Program Files\Adobe\Acrobat DC\Acrobat\AcroCEF\AcroCEF.exe -
7f65f5ae08cc5a15df0c7d70e3fc3ba5b4f083dcbdc02170423867257ffaf076 - C:\Program Files\7-Zip\7zG.exe -
7b5eda73c21960c451ea3148900b28cdbac7180e43047fbc944028096e497c08 - C:\Program Files\Adobe\Acrobat DC\Acrobat\plug_ins\pi_brokers\32BitMAPIBroker.exe -
da6d0544ee3a6b75f3c5c545213b10ec93a15d5213e5232e7e224a29ecb91d6b
Embedded URLs
- http://www.gnu.org/software/coreutils/
- http://translationproject.org/team/
- http://gnu.org/licenses/gpl.html
- http://www.gnu.org/gethelp/
- http://www.microsoft.com/pki/certs/MicRooCerAut_2010-06-23.crt0
- http://www.microsoft.com/windows0
- http://www.microsoft.com/pki/certs/MicTimStaPCA_2010-07-01.crt0
- http://www.microsoft.com/pki/certs/MicrosoftTimeStampPCA.crt0
- http://www.microsoft.com/pki/certs/MicCodSigPCA_08-31-2010.crt0
- http://crl.microsoft.com/pki/crl/products/microsoftrootcert.crl0T
- http://office.microsoft.com/0
- http://office.microsoft.com
- http://schemas.microsoft.com/SMI/2005/WindowsSettings
- http://schemas.datacontract.org/2004/07/Microsoft.DigitalFulfillment.RedemptionService.V1.Contracts
- http://www.msftconnecttest.com/connecttest.txt
- http://rb.symcd.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTDRSYViRCZTxmZjLENmnwVjLly9QQU1MAGIknrOUvdk%2BJcobhHdglyA1gCEF0QyxjrOnkAh4OrdHf50xk%3D
- http://rb.symcb.com/rb.crl
- http://c.pki.goog/r/r1.crl
- http://x2.c.lencr.org/
- http://ye.c.lencr.org/
- http://c.pki.goog/wr2/9UVbN0w5E6Y.crl
- http://yr.c.lencr.org/
Embedded domains
- www.gnu.org
- translationproject.org
- gnu.org
- cygwin.com
- www.microsoft.com
- crl.microsoft.com
- office.microsoft.com
- schemas.microsoft.com
- schemas.datacontract.org
- x1.c.lencr.org
- x2.c.lencr.org
- ye.c.lencr.org
- yr.c.lencr.org
Embedded IP addresses
- 20.184.175.21
- 52.123.252.197
- 4.155.93.171
- 4.230.171.124
- 172.64.154.167
- 74.178.240.51
- 135.233.95.144
- 172.215.188.232
- 162.159.142.9
- 52.110.12.56
- 52.110.12.50
- 52.148.114.188
- 72.145.35.99
- 20.42.73.28
- 20.42.73.31
- 4.247.188.224
- 52.110.12.28
- 52.110.12.20
File paths
- F:\Office\Target\x64\ship\postc2r\x-none\msoxmled.pdb
- F:\Office\Target\x86\ship\postc2r\x-none\firstrun.pdb
- L:\:`:h:
More Maldoc samples · Latest analyzed threats · ATT&CK coverage
Analyzed on MalwareAnalyzer by Cyble · Open interactive report