MALICIOUS — 76f4f322f6368c3ae14dc57af7bfbc2fe9351472c4d8499633ae1ed521e99e31

MALICIOUS — 76f4f322f6368c3ae14dc57af7bfbc2fe9351472c4d8499633ae1ed521e99e31 is a pe sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (97/100), attributed to the Pidgeon family. 5 of 55 detection engines flagged it, exhibiting 3 ATT&CK techniques.

Identification

• SHA-256: 76f4f322f6368c3ae14dc57af7bfbc2fe9351472c4d8499633ae1ed521e99e31
• SHA-1: 919489f9cdf533d9c0c511791274dc6a78f98642
• MD5: a4113cfecd5eb3fa91b834038381e22c
• imphash: b57870dcf1f3e91ff7814fe4ffd1b747
• ssdeep: 24576:L4/izRXTOkMtrIceMaFPjkjD29LOUop7mxb52BfltMzYVw/rlAXIR8RL:LakOElMaFLkSOUopWClKzZYIR8x
• TLSH: T18D5D5B8D571D5742D0BDAA103891896C698BECFC60FD6C8B46CB68394DF90B390371BA
• Submitted as: 76f4f322f6368c3ae14dc57af7bfbc2fe9351472c4d8499633ae1ed521e99e31
• File type: pe · Size: 2852677 bytes
• Verdict: malicious (97/100) · Family: Pidgeon

Detections (5 of 55 engines)

• capa (capabilities): capability:execution/powershell
• ClamAV (daily): Win.Packed.Pidgeon-9909600-0
• YARA: JPCERT/CC: JPCERT_HUILoader_PlugX_SideLoad
• YARA: Yara-Rules community: YR_AntiDebug_Checks
• LIEF (executable format parser): lief:invalid-authenticode

MITRE ATT&CK

• T1059.001
• T1486
• T1056.001

Why this verdict

The malicious score of 97/100 is the fusion of 8 weighted signals:

• ClamAV (daily) flagged Win.Packed.Pidgeon-9909600-0 (rule Win.Packed.Pidgeon-9909600-0) - engine signal, weight 0.90, confidence 0.95
• execute via PowerShell (rule execute via PowerShell) - capa signal, weight 0.40, confidence 0.80
• capture keystrokes (rule capture keystrokes) - capa signal, weight 0.40, confidence 0.80
• 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
• Embedded network infrastructure: http://www.iana.org/assignments/lang-tag-apps.htm, http://docs.oasis-open.org/ws-sx/ws-trust/200512/, http://docs.oasis-open.org/ws-sx/ws-trust/200512/Issue - static signal, weight 0.35, confidence 0.60
• encrypt data (rule encrypt data) - capa signal, weight 0.15, 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://schemas.xmlsoap.org/ws/2005/05/identity
• http://www.w3.org/2005/08/addressing
• http://schemas.xmlsoap.org/ws/2004/09/policy
• http://schemas.xmlsoap.org/ws/2005/02/trust
• http://www.w3.org/2001/XMLSchema
• http://www.w3.org/2000/09/xmldsig#
• http://www.w3.org/2001/04/xmlenc#
• http://www.w3.org/TR/xmlenc-core/xenc-schema.xsd
• http://www.w3.org/2005/08/addressing/addressing.xsd
• http://schemas.xmlsoap.org/ws/2004/09/policy/ws-policy.xsd
• http://schemas.xmlsoap.org/ws/2005/02/trust/ws-trust.xsd
• http://www.w3.org/TR/xmldsig-core/xmldsig-core-schema.xsd
• http://www.w3.org/XML/1998/namespace
• http://www.w3.org/2001/xml.xsd
• http://schemas.xmlsoap.org/ws/2007/01/identity
• http://www.w3.org/XML/1998/namespace.html
• http://www.w3.org/TR/REC-xml
• http://www.w3.org/2001/03/xml.xsd
• http://www.w3.org/2004/10/xml.xsd

Embedded domains

• crl.microsoft.com
• www.microsoft.com
• office.microsoft.com
• schemas.xmlsoap.org
• www.w3.org
• www.ietf.org
• www.iana.org
• docs.oasis-open.org
• microsoft.com
• icardissuer.microsoft.com

File paths

• F:\Office\Target\x86\ship\postc2r\x-none\orgchart.pdb
• L:\:o:z:
• V:\:r:x:
• N:\:i:f;~;
• V:\:b:h:n:t:z:
• f:\dd\ndp\cdf\src\wcf\infocard\service\native\mem.cpp
• f:\dd\ndp\cdf\src\wcf\infocard\service\native\icardrpcutil.cpp
• f:\dd\ndp\cdf\src\wcf\infocard\service\native\pendingfilelist.cpp
• f:\dd\ndp\cdf\src\wcf\infocard\service\native\verifysign.cpp
• f:\dd\Tools\devdiv\EcmaPublicKey.snk
• U:\:l:s:z:
• R:\:t:

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Analyzed on MalwareAnalyzer by Cyble · Open interactive report