MALICIOUS — ffa8b7cf81db9b0fc2c08f87d3d54b8e0d3852afe677d85b9b4d873d466c905c

MALICIOUS — ffa8b7cf81db9b0fc2c08f87d3d54b8e0d3852afe677d85b9b4d873d466c905c is a pe sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (100/100), attributed to the Kolab family. 9 of 56 detection engines flagged it, exhibiting 1 ATT&CK technique.

Identification

• SHA-256: ffa8b7cf81db9b0fc2c08f87d3d54b8e0d3852afe677d85b9b4d873d466c905c
• SHA-1: 7f1035f730389f45a4bb7cf2133600602c5d774d
• MD5: 2268b3a8f182c046e37b49c3735bc126
• imphash: 01392ca861cf87b8d28ad9ea90016bb4
• ssdeep: 98304:rIabjKoh9WsoqnstLEAAsRXPIabjKoh9WsoqnstLEAAsRX:4qnhA98qnhA9
• TLSH: T19D65E6CC510AEA11EAB58E545F176A9C102DF0B423BF2B189683A079F4E6C3FF871459
• Submitted as: ffa8b7cf81db9b0fc2c08f87d3d54b8e0d3852afe677d85b9b4d873d466c905c
• File type: pe · Size: 5679501 bytes
• Verdict: malicious (100/100) · Family: Kolab

Detections (9 of 56 engines)

• capa (capabilities): capability:collection/keylog
• MalwareAnalyser heuristics (entropy/packer): ASPack
• ClamAV (daily): Win.Malware.Kolab-9885903-0
• 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
• Kaspersky (KVRT): Worm.Win32.AutoRun.vx

MITRE ATT&CK

• T1056.001

Why this verdict

The malicious score of 100/100 is the fusion of 12 weighted signals:

• ClamAV (daily) flagged Win.Malware.Kolab-9885903-0 (rule Win.Malware.Kolab-9885903-0) - engine signal, weight 0.90, confidence 0.95
• 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
• 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
• capture keystrokes (rule capture keystrokes) - capa 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://nsis.sf.net/NSIS_Error - static signal, weight 0.35, confidence 0.60
• Packing/obfuscation: ASPack, high-entropy-sections:.text, Microsoft Linker - static signal, weight 0.25, confidence 0.55

Dynamic analysis (windows)

0 behavior events · 0 ATT&CK techniques · 0 dropped files.

Runtime network

• none

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://schemas.microsoft.com/2003/10/Serialization/Arrays
• http://schemas.microsoft.com/office/licensingservice/API/2012/01/ClientApi
• http://schemas.datacontract.org/2004/07/Microsoft.Office.LicensingService
• http://schemas.microsoft.com/office/licensingservice/API/2012/01/ClientApi/GetEntitlementsForOlsIdentityResponse
• http://schemas.microsoft.com/office/licensingservice/API/2012/01/ClientApi/GetEntitlementsForOlsIdentityRequest
• http://schemas.microsoft.com/office/licensingservice/API/2012/01/ClientApi/CheckMachineStatusResponse
• http://schemas.microsoft.com/office/licensingservice/API/2012/01/ClientApi/CheckMachineStatusRequest
• http://schemas.microsoft.com/office/licensingservice/API/2012/01/ClientApi/GetKeyResponse
• http://schemas.microsoft.com/office/licensingservice/API/2012/01/ClientApi/GetKeyRequest
• http://schemas.microsoft.com/office/licensingservice/API/2012/01/ClientApi/GetEntitlementForMachineKeyResponse
• http://schemas.microsoft.com/office/licensingservice/API/2012/01/ClientApi/GetEntitlementForMachineKeyRequest
• http://schemas.microsoft.com/office/licensingservice/API/2012/01/ClientApi/GetLicenseInfoForMachineKeyResponse
• http://schemas.microsoft.com/office/licensingservice/API/2012/01/ClientApi/GetLicenseInfoForMachineKeyRequest
• http://schemas.microsoft.com/office/licensingservice/API/2012/01/ClientApi/GetLicenseResponse
• http://schemas.microsoft.com/office/licensingservice/API/2012/01/ClientApi/GetLicenseRequest
• http://schemas.microsoft.com/office/licensingservice/API/2012/01/ClientApi/GetSessionTokenResponse
• http://schemas.microsoft.com/office/licensingservice/API/2012/01/ClientApi/GetSessionTokenRequest
• http://schemas.microsoft.com/office/licensingservice/API/2012/01/ClientApi/GetOlsLicenseResponse
• http://schemas.microsoft.com/office/licensingservice/API/2012/01/ClientApi/GetOlsLicenseRequest

Embedded domains

• crl.microsoft.com
• www.microsoft.com
• office.microsoft.com
• schemas.microsoft.com
• schemas.datacontract.org
• nsis.sf.net
• crl.verisign.com
• cacerts.digicert.com
• crl4.digicert.com
• crl3.digicert.com
• www.digicert.com
• go.microsoft.com
• ols.officeapps.live.com

File paths

• F:\Office\Target\x86\ship\postc2r\x-none\wordconv.pdb
• d:\dbs\el\oc\target\x86\ship\postc2r\x-none\olicenseheartbeat.pdb
• X:\:`:d:h:l:p:t:x:
• P:\:`:l:p:
• H:\:d:h:p:
• T:\:d:l:t:
• F:\Office\Target\x86\ship\postc2r\x-none\msosync.pdb
• d:\office\source\otools\inc\util\ocfx\ocomutility.h
• d:\office\source\util\ocfx\olog.cpp
• d:\office\source\util\ocfx\ostring.cpp
• d:\office\source\util\ocfx\ohandle.cpp
• d:\office\source\util\ocfx\ofile.cpp
• d:\office\source\util\ocfx\oprocess.cpp
• d:\office\source\util\ocfx\oregistrykey.cpp
• d:\office\source\otools\inc\util\ocfx\ostacktrace.h
• d:\office\source\otools\inc\util\ocfx\othreadlocal.h
• d:\office\source\util\ocfx\oexceptionmanager.cpp
• d:\office\source\util\ocfx\olibrary.cpp
• t:\setupexe\x86\ship\0\deployca\odeploy.pdb
• c:\jenkins\workspace\8-2-build-windows-amd64-cygwin\jdk8u281\880\build\windows-amd64\jdk\objs\orbd_objs\orbd.pdb

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Analyzed on MalwareAnalyzer by Cyble · Open interactive report