MALICIOUS — 6276d36fc25ba91879516709966780c34d7589b06ed04369569f365013632c6a

MALICIOUS — 6276d36fc25ba91879516709966780c34d7589b06ed04369569f365013632c6a is a pe sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (99/100), attributed to the Pidgeon family. 7 of 55 detection engines flagged it, exhibiting 3 ATT&CK techniques.

Identification

• SHA-256: 6276d36fc25ba91879516709966780c34d7589b06ed04369569f365013632c6a
• SHA-1: c4cc6af48933540a25f954530e6aa1cbaa346f44
• MD5: 78942535048c53df2c8af5879c134442
• imphash: 1bc18422ce3ff8b1f4b00d97efa67a6b
• ssdeep: 49152:8CIabjKoh9WZrG7v9MPeOD7ljyakOElMaFLkjcY/+:pIabjKoh9WS9uenak7/7
• TLSH: T1A95E29881117B243DAF2AB240C205F4D6039E0BD717A389A8ED3E29F7DF69A7191055F
• Submitted as: 6276d36fc25ba91879516709966780c34d7589b06ed04369569f365013632c6a
• File type: pe · Size: 2872360 bytes
• Verdict: malicious (99/100) · Family: Pidgeon

Detections (7 of 55 engines)

• YARA: MalwareAnalyser built-in: Windows_Injection_Api_Combo
• capa (capabilities): capability:collection/keylog
• ClamAV (daily): Win.Packed.Pidgeon-9909600-0
• YARA: JPCERT/CC: JPCERT_HUILoader_PlugX_SideLoad
• YARA: MalwareAnalyser community pack: TL_Shellcode_VirtualAlloc_Exec
• YARA: Yara-Rules community: YR_Packer_ASPack_MPRESS
• Microsoft Defender: Trojan:Win32/Vindor!pz

MITRE ATT&CK

• T1055
• T1071.001
• T1056.001

YARA

• Windows_Injection_Api_Combo

Why this verdict

The malicious score of 99/100 is the fusion of 9 weighted signals:

• ClamAV (daily) flagged Win.Packed.Pidgeon-9909600-0 (rule Win.Packed.Pidgeon-9909600-0) - 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: JPCERT/CC flagged JPCERT_HUILoader_PlugX_SideLoad (rule JPCERT_HUILoader_PlugX_SideLoad) - 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_Packer_ASPack_MPRESS (rule YR_Packer_ASPack_MPRESS) - engine signal, weight 0.35, confidence 0.70
• 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
• inject code into another process (rule inject code into another process) - capa signal, weight 0.12, 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/CSPCA.crt0
• http://www.microsoft.com/pki/certs/tspca.crt0
• 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://www.digicert.com/ssl-cps-repository.htm0
• http://crl3.digicert.com/assured-cs-2011a.crl03
• http://crl4.digicert.com/assured-cs-2011a.crl0
• http://cacerts.digicert.com/DigiCertAssuredIDCodeSigningCA-1.crt0
• http://ts-aia.ws.symantec.com/tss-ca-g2.cer0
• http://ts-crl.ws.symantec.com/tss-ca-g2.crl0
• http://crl.thawte.com/ThawteTimestampingCA.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
• http://schemas.microsoft.com/SMI/2005/WindowsSettings

Embedded domains

• crl.microsoft.com
• www.microsoft.com
• office.microsoft.com
• www.digicert.com
• cacerts.digicert.com
• crl3.digicert.com
• crl4.digicert.com
• ts-aia.ws.symantec.com
• ts-crl.ws.symantec.com
• crl.thawte.com
• crl.verisign.com
• www.verisign.com
• logo.verisign.com
• www.symauth.com
• evcs-crl.ws.symantec.com
• evcs-aia.ws.symantec.com
• schemas.microsoft.com
• schemas.datacontract.org
• go.microsoft.com

Embedded IP addresses

• 11.0.07.79

Registry keys

• HKEY_CURRENT_USER\Software\Adobe\Adobe
• HKEY_CURRENT_USER\Software\Adobe\Acrobat

File paths

• c:\builds\moz2_slave\rel-m-rel-w32_bld-000000000000\build\obj-firefox\toolkit\crashreporter\client\crashreporter.pdb
• X:\:@=D=H=L=P=T=X=\=`=d=h=l=p=t=x=
• P:\:
• X:\:`:d:h:l:p:t:x:
• c:\builds\moz2_slave\rel-m-rel-w32_bld-000000000000\build\obj-firefox\ipc\app\plugin-container.pdb
• T:\:d:l:t:
• D:\:`:
• C:\btvsts\3481\private\softgrid\shared\include\command_line_cleaner.hpp
• T:\:h:
• 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:\Office\Target\x86\ship\postc2r\x-none\firstrun.pdb
• L:\:`:h:
• c:\\path\to\somefile.exe

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