MALICIOUS — 1edec12b45c0130d3559a907c821695f4c8a91c34279ea90f2f4c7f62d40ecbc

MALICIOUS — 1edec12b45c0130d3559a907c821695f4c8a91c34279ea90f2f4c7f62d40ecbc is a pe sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (98/100), attributed to the Bulz family. 6 of 55 detection engines flagged it, exhibiting 4 ATT&CK techniques.

Identification

• SHA-256: 1edec12b45c0130d3559a907c821695f4c8a91c34279ea90f2f4c7f62d40ecbc
• SHA-1: fb7b7293bce6f15e97b6d92a56c83cf611a1a87d
• MD5: da57c06de0b7e9c1ca743219af736b8f
• imphash: 6406b46493a955ab0c0699fde6671a55
• ssdeep: 49152:0O7Hhp/hKPgssSt2gwDkYOMwwnMb4PmyV:lHhp/hv7StjYOXwnS4rV
• TLSH: T1C15B5BCD521EA702D676CB346C70AADD9472B0D921B9369C0E46C67E11E3C27FC7206A
• Submitted as: 1edec12b45c0130d3559a907c821695f4c8a91c34279ea90f2f4c7f62d40ecbc
• File type: pe · Size: 2238125 bytes
• Verdict: malicious (98/100) · Family: Bulz

Detections (6 of 55 engines)

• capa (capabilities): capability:collection/keylog
• ClamAV (daily): Win.Malware.Bulz-9878239-0
• YARA: delivr.to detections: DLV_Maldoc_VBA_AutoExec
• YARA: JPCERT/CC: JPCERT_HUILoader_PlugX_SideLoad
• YARA: Yara-Rules community: YR_AntiDebug_Checks
• LIEF (executable format parser): lief:invalid-authenticode

MITRE ATT&CK

• T1547.001
• T1071.001
• T1057
• T1056.001

Why this verdict

The malicious score of 98/100 is the fusion of 10 weighted signals:

• ClamAV (daily) flagged Win.Malware.Bulz-9878239-0 (rule Win.Malware.Bulz-9878239-0) - engine signal, weight 0.90, confidence 0.95
• capture keystrokes (rule capture keystrokes) - capa signal, weight 0.40, confidence 0.80
• YARA: delivr.to detections flagged DLV_Maldoc_VBA_AutoExec (rule DLV_Maldoc_VBA_AutoExec) - engine signal, weight 0.35, confidence 0.70
• YARA: JPCERT/CC flagged JPCERT_HUILoader_PlugX_SideLoad (rule JPCERT_HUILoader_PlugX_SideLoad) - engine signal, weight 0.35, confidence 0.70
• YARA: Yara-Rules community flagged YR_AntiDebug_Checks (rule YR_AntiDebug_Checks) - engine signal, weight 0.35, confidence 0.70
• LIEF (executable format parser) flagged lief:invalid-authenticode (rule lief:invalid-authenticode) - engine signal, weight 0.35, confidence 0.70
• persist via registry run key (rule persist via registry run key) - capa signal, weight 0.35, confidence 0.60
• Embedded network infrastructure: http://www.symauth.com/cps0, http://www.symauth.com/rpa04, http://www.symauth.com/cps09 - static signal, weight 0.35, confidence 0.60
• communicate over HTTP (rule communicate over HTTP) - capa signal, weight 0.30, confidence 0.60
• enumerate processes (rule enumerate processes) - capa signal, weight 0.20, confidence 0.60

Dynamic analysis

No runtime behaviour was captured for this sample, so the analysis above is static only. That is a limit of this run rather than evidence the sample does nothing.

Embedded URLs

• 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
• http://www.microsoft.com/pki/certs/MicRooCerAut_2010-06-23.crt0
• http://www.microsoft.com/pki/certs/MicTimStaPCA_2010-07-01.crt0
• http://crl.thawte.com/ThawteTimestampingCA.crl0
• http://ts-aia.ws.symantec.com/tss-ca-g2.cer0
• http://ts-crl.ws.symantec.com/tss-ca-g2.crl0
• http://crl.verisign.com/pca3.crl0
• https://www.verisign.com/cps0
• http://logo.verisign.com/vslogo.gif04
• http://www.symauth.com/cps0
• http://www.symauth.com/rpa04
• http://crl.verisign.com/pca3-g5.crl0
• http://www.symauth.com/cps09
• http://evcs-crl.ws.symantec.com/evcs.crl0
• http://evcs-aia.ws.symantec.com/evcs.cer0
• https://armmf.adobe.com/arm-manifests/win/
• http://www.adobe.com/support/downloads/product.jsp?product=1&platform=Windows
• http://www.adobe.com/support/downloads/product.jsp?product=10&platform=Windows
• http://ns.adobe.com/Acrobat/RSS/Inbox/feedUI
• http://ns.adobe.com/Acrobat/RSS/Inbox/icon
• http://ns.adobe.com/synchronizer/ttl
• http://ns.adobe.com/synchronizer/dependency

Embedded domains

• crl.microsoft.com
• www.microsoft.com
• office.microsoft.com
• crl.thawte.com
• ts-aia.ws.symantec.com
• ts-crl.ws.symantec.com
• crl.verisign.com
• www.verisign.com
• logo.verisign.com
• www.symauth.com
• evcs-crl.ws.symantec.com
• evcs-aia.ws.symantec.com
• armmf.adobe.com
• www.adobe.com
• ns.adobe.com
• www.w3.org
• purl.org
• csc3-2004-crl.verisign.com

Embedded IP addresses

• 1.7.2.0

File paths

• F:\Office\Target\x86\ship\postc2r\x-none\cnfnot32.pdb
• T:\:p:
• T:\:l:t:
• f:\CB\11X_MainQ\Acrobat\Installers\BootStrapExe_Small\Release\Setup.pdb
• f:\CB\ARM_Sustaining\BuildResults\bin\Win32\Release\AdobeARM.pdb
• R:\:m:{:
• D:\:q:
• X:\:`:d:h:l:p:t:
• T:\:d:l:t:
• T:\:d:l:x:
• g:\acro_root_at\acrobat\systemsynchronizer\synchronizerapp\build\win\release\AdobeCollabSync.pdb
• f:\dd\vctools\vc7libs\ship\atlmfc\src\mfc\filecore.cpp
• f:\dd\vctools\vc7libs\ship\atlmfc\src\mfc\appcore.cpp
• f:\dd\vctools\vc7libs\ship\atlmfc\src\mfc\array_s.cpp
• f:\dd\vctools\vc7libs\ship\atlmfc\include\afxwin2.inl
• f:\dd\vctools\vc7libs\ship\atlmfc\src\mfc\filetxt.cpp
• f:\dd\vctools\vc7libs\ship\atlmfc\src\mfc\auxdata.cpp
• C:\Program

More Bulz samples · Latest analyzed threats · ATT&CK coverage

Analyzed on MalwareAnalyzer by Cyble · Open interactive report