MALICIOUS — cf8f6e544e8ee646bf94939a3eae5288fc9caf967300109a4e4d36a2f9fa8c27

MALICIOUS — cf8f6e544e8ee646bf94939a3eae5288fc9caf967300109a4e4d36a2f9fa8c27 is a pe sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (97/100), attributed to the HUILoader family. 5 of 52 detection engines flagged it, exhibiting 2 ATT&CK techniques.

Identification

• SHA-256: cf8f6e544e8ee646bf94939a3eae5288fc9caf967300109a4e4d36a2f9fa8c27
• SHA-1: a756dd5a679f867db9f99a8b7cea2753e7cb78bf
• MD5: 15523094f3472548f5276d618082310f
• imphash: edf4e75ead3f8f12a6448e6d357d1297
• ssdeep: 786432:ppeXqoAugc9nh2Sf5wdzCl/isPvBzPEqRqFI:WXqoVgInhJyCl/isPv1PEkqi
• TLSH: T199758DC905A2FF01E4F4DB90DF208A6C9092E1EDB0BC19CC4A93607E27FB56B64952D5
• Submitted as: cf8f6e544e8ee646bf94939a3eae5288fc9caf967300109a4e4d36a2f9fa8c27
• File type: pe · Size: 26017792 bytes
• Verdict: malicious (97/100) · Family: HUILoader

Detections (5 of 52 engines)

• capa (capabilities): capability:collection/keylog
• ClamAV (daily): Win.Trojan.Generic-9950561-0
• YARA: JPCERT/CC: JPCERT_HUILoader_PlugX_SideLoad
• YARA: Yara-Rules community: YR_AntiDebug_Checks
• LIEF (executable format parser): lief:invalid-authenticode

MITRE ATT&CK

• 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.Generic-9950561-0 (rule Win.Trojan.Generic-9950561-0) - engine signal, weight 0.90, confidence 0.95
• 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://purl.org/dc/elements/1.1/, http://purl.oclc.org/ooxml/officeDocument/bibliography, http://purl.oclc.org/ooxml/drawingml/chartDrawing - 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://schemas.microsoft.com/xps/2005/06
• 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/office/2007/6/19/audiovideo
• http://schemas.microsoft.com/office/spreadsheetml/2016/revision9
• http://schemas.microsoft.com/office/powerpoint/2013/contentapp
• http://schemas.microsoft.com/office/drawing/2015/9/8/chartex
• http://schemas.microsoft.com/office/spreadsheetml/2016/revision10
• http://schemas.microsoft.com/office/drawing/2015/10/21/chartex
• http://schemas.microsoft.com/office/powerpoint/2012/roamingSettings
• http://schemas.openxmlformats.org/presentationml/2006/main
• http://schemas.microsoft.com/internal/powerpoint/test
• http://schemas.microsoft.com/server/powerpoint/2009/main
• http://schemas.microsoft.com/internal/drawing/test
• http://schemas.microsoft.com/internal/diagram/test
• http://schemas.microsoft.com/office/office/2011/9/metroDictionary
• http://schemas.microsoft.com/office/drawing/2014/chart
• http://schemas.microsoft.com/server/powerpoint/2009/mobile
• http://schemas.microsoft.com/internal/ID/Story/test
• http://schemas.microsoft.com/schemaLibrary/2003/core
• http://schemas.microsoft.com/office/drawing/2014/chart/command

Embedded domains

• schemas.microsoft.com
• window.name
• c.style.top
• crl.microsoft.com
• www.microsoft.com
• office.microsoft.com
• schemas.openxmlformats.org
• www.w3.org
• purl.org
• purl.oclc.org
• www.msn.com

Embedded IP addresses

• 6.0.1.0

File paths

• F:\Office\Target\x86\ship\postc2r\x-none\excelcnv.pdb
• V:\:e:m:
• S:\:b:~:
• R:\:
• R:\:u:
• P:\:i:z:I;W;s;
• K:\:
• X:\:`:d:h:l:p:t:x:
• V:\;d;
• R:\:~:
• U:\:c:j:r:z:
• B:\:t:
• W:\:r:w:
• M:\:y:
• W:\:
• V:\:b:h:n:t:z:
• U:\:c:j:q:x:
• Q:\:c:j:q:x:
• X:\:
• X:\:d:h:
• X:\:d:h:p:t:
• X:\:h:l:x:
• X:\:`:d:h:l:p:t:
• X:\:`:d:h:l:
• X:\:h:l:t:

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Analyzed on MalwareAnalyzer by Cyble · Open interactive report