MALICIOUS — f2cf0477339d3953f0dc4d4fe2959be12e1d509007a7522e4192463ccb6e823b

MALICIOUS — f2cf0477339d3953f0dc4d4fe2959be12e1d509007a7522e4192463ccb6e823b is a pe sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (99/100), attributed to the Filerepmalware family. 9 of 52 detection engines flagged it, exhibiting 4 ATT&CK techniques.

Identification

• SHA-256: f2cf0477339d3953f0dc4d4fe2959be12e1d509007a7522e4192463ccb6e823b
• SHA-1: aab6e8d7596e178be515d8af68d96df3d7a496b7
• MD5: 6541ad9150946dd4436dba44a7c479cb
• imphash: 7a4e02ca574f088649c66d9585f116f7
• ssdeep: 49152:Y3EZpBh211Waw30ec9IW1dXgfC/MHmg8ZqhaK6zbfqdlSA:Zr211K5c9IW1dXgfC/MHmg8xHA
• TLSH: T17D5E2ADC023A39CFD1B8DE105A13496C159E70FAF13CBA5896C7941E1EEAA63787005B
• Submitted as: f2cf0477339d3953f0dc4d4fe2959be12e1d509007a7522e4192463ccb6e823b
• File type: pe · Size: 3007517 bytes
• Verdict: malicious (99/100) · Family: Filerepmalware

Detections (9 of 52 engines)

• YARA: MalwareAnalyser built-in: Windows_Injection_Api_Combo
• capa (capabilities): capability:collection/keylog
• ClamAV (daily): Win.Malware.Filerepmalware-9871423-0
• YARA: delivr.to detections: DLV_Maldoc_VBA_AutoExec
• YARA: JPCERT/CC: JPCERT_HUILoader_PlugX_SideLoad
• YARA: Trellix/McAfee ATR: ATR_LockBit_Ransomware
• YARA: MalwareAnalyser community pack: TL_Shellcode_VirtualAlloc_Exec
• YARA: Yara-Rules community: YR_AntiDebug_Checks
• LIEF (executable format parser): lief:invalid-authenticode

MITRE ATT&CK

• T1071.001
• T1057
• T1056.001
• T1055

YARA

• Windows_Injection_Api_Combo

Why this verdict

The malicious score of 99/100 is the fusion of 12 weighted signals:

• ClamAV (daily) flagged Win.Malware.Filerepmalware-9871423-0 (rule Win.Malware.Filerepmalware-9871423-0) - engine signal, weight 0.90, confidence 0.95
• Process injection API combination (rule Windows_Injection_Api_Combo) - yara signal, weight 0.65, confidence 0.90
• 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: Trellix/McAfee ATR flagged ATR_LockBit_Ransomware (rule ATR_LockBit_Ransomware) - engine signal, weight 0.35, confidence 0.70
• YARA: MalwareAnalyser community pack flagged TL_Shellcode_VirtualAlloc_Exec (rule TL_Shellcode_VirtualAlloc_Exec) - 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
• Embedded network infrastructure: https://www.autoitscript.com/autoit3/, http://www.autoitscript.com/autoit3/, 6.0.1.0 - 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://ocsp2.globalsign.com/rootr306
• http://crl.globalsign.com/root-r3.crl0c
• https://www.globalsign.com/repository/0
• http://secure.globalsign.com/cacert/gscodesignsha2g3ocsp.crt08
• http://ocsp2.globalsign.com/gscodesignsha2g30V
• http://crl.globalsign.com/gscodesignsha2g3.crl0
• https://www.autoitscript.com/autoit3/
• http://secure.globalsign.com/cacert/gstimestampingsha2g2.crt0
• https://www.globalsign.com/repository/06
• http://crl.globalsign.net/root-r3.crl0
• 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://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/SMI/2005/WindowsSettings
• http://office.microsoft.com
• http://www.autoitscript.com/autoit3/

Embedded domains

• ocsp2.globalsign.com
• crl.globalsign.com
• www.globalsign.com
• secure.globalsign.com
• www.autoitscript.com
• crl.globalsign.net
• crl.microsoft.com
• www.microsoft.com
• office.microsoft.com
• schemas.microsoft.com

Embedded IP addresses

• 6.0.1.0

File paths

• X:\:`:d:h:l:p:t:x:
• R:\:f:p:w:{:
• U:\:`:f:j:p:z:
• T:\:d:l:t:
• X:\:`:
• E:\^;y
• d:\dbs\el\oc\target\x86\ship\postc2r\x-none\clview.pdb
• U:\:
• L:\:l:u:
• X:\:d:l:
• X:\:`:h:l:p:t:x:
• X:\:`:d:

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Analyzed on MalwareAnalyzer by Cyble · Open interactive report