MALICIOUS — b412ef86460e358f175cae1fe7766c58c8cea2936124bf9c41c01870475df9fa

MALICIOUS — b412ef86460e358f175cae1fe7766c58c8cea2936124bf9c41c01870475df9fa is a pe sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (97/100), attributed to the FuBu family. 8 of 55 detection engines flagged it, exhibiting 2 ATT&CK techniques.

Identification

• SHA-256: b412ef86460e358f175cae1fe7766c58c8cea2936124bf9c41c01870475df9fa
• SHA-1: 780b33411d9e3c19b2e05d86e844a3411021f94f
• MD5: fbb1ae67a3f5e74e9d2af0e93125a7f5
• imphash: 77f13bc24efea5a05601b43cf44d1f1a
• ssdeep: 98304:GGbfHQGbfHYGbfHYGbfHYGbfHYGbfHgGbfH:97Hz7HL7HL7HL7HL7Hj7H
• TLSH: T1936F8CC85203B215F5F29E206C16CD8C6D43B96A22FA669CE303D72F52F4873D9B1169
• Submitted as: b412ef86460e358f175cae1fe7766c58c8cea2936124bf9c41c01870475df9fa
• File type: pe · Size: 15875251 bytes
• Verdict: malicious (97/100) · Family: FuBu

Detections (8 of 55 engines)

• capa (capabilities): capability:collection/keylog
• ClamAV (daily): Win.Trojan.FuBu-1
• YARA: delivr.to detections: DLV_Maldoc_VBA_AutoExec
• YARA: JPCERT/CC: JPCERT_HUILoader_PlugX_SideLoad
• YARA: Yara-Rules community: YR_AntiDebug_Checks
• Microsoft Defender: Virus:Win32/Shodi
• Emsisoft (Emergency Kit): Win32.HLLP.Shodi.A
• Kaspersky (KVRT): Virus.Win32.HLLP.Shodi.a

MITRE ATT&CK

• T1071.001
• T1056.001

Why this verdict

The malicious score of 97/100 is the fusion of 7 weighted signals:

• ClamAV (daily) flagged Win.Trojan.FuBu-1 (rule Win.Trojan.FuBu-1) - 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
• Embedded network infrastructure: http://mintty.github.io/, http://ciembor.github.io/4bit/ - static signal, weight 0.35, confidence 0.60
• communicate over HTTP (rule communicate over HTTP) - capa signal, weight 0.30, 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://mintty.github.io/
• https://raw.githubusercontent.com/mintty/mintty/master/VERSION
• http://schemas.microsoft.com/SMI/2005/WindowsSettings
• http://ciembor.github.io/4bit/

Embedded domains

• crl.microsoft.com
• www.microsoft.com
• office.microsoft.com
• chcp.com
• mintty.github.io
• raw.githubusercontent.com
• schemas.microsoft.com
• ciembor.github.io

File paths

• F:\Office\Target\x64\ship\postc2r\x-none\appsharinghookcontroller.pdb

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

Analyzed on MalwareAnalyzer by Cyble · Open interactive report