MALICIOUS — fbdd212f0d5065411746bbb2d652f3c6e18bb589fb0ca683da81e84e804db1c6

MALICIOUS — fbdd212f0d5065411746bbb2d652f3c6e18bb589fb0ca683da81e84e804db1c6 is a pe sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (100/100), attributed to the AutoRun family. 8 of 56 detection engines flagged it, exhibiting 3 ATT&CK techniques.

Identification

SHA-256: fbdd212f0d5065411746bbb2d652f3c6e18bb589fb0ca683da81e84e804db1c6
SHA-1: af4c46fed1e8c7c1f08de71b3515649bf9025300
MD5: 74d1fae91707a14b231e3eb0f0bd6fd1
imphash: 01392ca861cf87b8d28ad9ea90016bb4
ssdeep: 6144:cLnF+F+Z7PHLnF+Gd1E6dqi4py59+Md1E6dqi4py5e:cIUhHI4Ey1cOEy1e
TLSH: T14C447D59029B2173E1F2DD00645C8EDD8143BCE834B6176C920BF15C41BABA7E6FACA5
Submitted as: fbdd212f0d5065411746bbb2d652f3c6e18bb589fb0ca683da81e84e804db1c6
File type: pe · Size: 250952 bytes
Verdict: malicious (100/100) · Family: AutoRun

Detections (8 of 56 engines)

MalwareAnalyser heuristics (entropy/packer): ASPack
ClamAV (daily): Win.Worm.Vindor-9886047-0
YARA: JPCERT/CC: JPCERT_HUILoader_PlugX_SideLoad
YARA: Yara-Rules community: YR_Packer_ASPack_MPRESS
Detect It Easy (packer/type): DIE:Microsoft Linker
Microsoft Defender: Worm:Win32/AutoRun!pz
Emsisoft (Emergency Kit): Trojan.Runner.BP
Kaspersky (KVRT): Worm.Win32.AutoRun.vx

MITRE ATT&CK

Why this verdict

The malicious score of 100/100 is the fusion of 14 weighted signals:

ClamAV (daily) flagged Win.Worm.Vindor-9886047-0 (rule Win.Worm.Vindor-9886047-0) - 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
Microsoft Defender flagged Worm:Win32/AutoRun!pz (rule Worm:Win32/AutoRun!pz) - engine signal, weight 0.55, confidence 0.85
Emsisoft (Emergency Kit) flagged Trojan.Runner.BP (rule Trojan.Runner.BP) - 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
Contacted 17 HTTP request(s) at runtime - network signal, weight 0.40, confidence 0.80
Detect It Easy (packer/type) flagged DIE:Microsoft Linker (rule DIE:Microsoft Linker) - engine signal, weight 0.35, confidence 0.70
MalwareAnalyser heuristics (entropy/packer) flagged ASPack (rule ASPack) - engine signal, weight 0.35, confidence 0.70
YARA: Yara-Rules community flagged YR_Packer_ASPack_MPRESS (rule YR_Packer_ASPack_MPRESS) - engine signal, weight 0.30, confidence 0.70
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
Memory forensics: 2 finding(s) elsewhere in the guest, not attributed to this sample, e.g. SSDT hook (rule windows.ssdt.SSDT) - memory signal, weight 0.05, confidence 0.30

Dynamic analysis (windows)

24194 behavior events · 1 ATT&CK techniques · 24 dropped files.

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
bd115a575e86e61cea9136c5a2c47e090ba484dc2dee8b51a34111bb094266d5 - bd115a575e86e61cea9136c5a2c47e090ba484dc2dee8b51a34111bb094266d5
7d9bc4235094946ff72ee16bbd06b90efc268ef97caad0a532e48cb685568d35 - 7d9bc4235094946ff72ee16bbd06b90efc268ef97caad0a532e48cb685568d35
C:\Program Files\7-Zip\7zG.exe - fed9ec31670b433d96516defa8da20f7776587f7776dadd02e723cace5168b21
C:\Program Files\Adobe\Acrobat DC\Acrobat\plug_ins\pi_brokers\64BitMAPIBroker.exe - 6a78dba30ca10f3addef5b1683bd7bc97e98ce03c9e6ae7056845ee1b70b7d10
C:\Program Files\Adobe\Acrobat DC\Acrobat\plug_ins\pi_brokers\64BitMAPIBroker.exe - f56ad3073536329a7d4b54f47f401fd81a2469bc6ca01e6339164084d2677b9b
C:\Program Files\Adobe\Acrobat DC\Acrobat\plug_ins\pi_brokers\32BitMAPIBroker.exe - 374af28092f828531c9807be2fa515d00ec225bf4f505ad1be8adcf3486d3b78
C:\Program Files\Adobe\Acrobat DC\Acrobat\AcroCEF\SingleClientServicesUpdater.exe - c3775691bfabc3bf4669d1d8382c39c070c6ffc75b7e5a5b1a05396e8128a919
C:\Program Files\7-Zip\7zFM.exe - 7068f32b75d12d25c01ed773534f65d2816594e9c35fef356c3907ce8c768f3f
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.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

x1.c.lencr.org
x2.c.lencr.org
ye.c.lencr.org
yr.c.lencr.org

Embedded IP addresses

104.46.162.230
4.230.171.124
40.84.97.4
52.253.84.76
74.179.77.164
74.179.77.204
20.184.175.20
104.18.33.89
135.233.95.144
172.66.2.5
52.148.114.188
20.184.175.23
4.150.223.97
48.211.4.16
72.145.35.108
52.110.12.20
52.110.12.18

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Analyzed on MalwareAnalyzer by Cyble · Open interactive report