Hancitor — Office (OOXML) / .DOC malware analysis

Static analysis result for SHA-256 56f1795abf78f798…

MALICIOUS

Office (OOXML) / .DOC

369.1 KB Created: 2021-01-11 12:52:00 UTC Authoring application: Microsoft Office Word 15.0000
MD5: 90bc76c00a54ec40a5c02680c4ac0adc SHA-1: fd2a43d3e36adbfd2f6d4eb7aa30ff29e7f1ebb8 SHA-256: 56f1795abf78f798a51b9224a5deb17aedd924629136832b526c93339f525e56
380 Risk Score

Malware Insights

Hancitor · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic T1204.002 Malicious File T1059.001 PowerShell T1105 Ingress Tool Transfer

The sample contains VBA macros, including a Document_Open macro that utilizes Shell() and CreateObject() calls, indicating it's designed to execute arbitrary code. Heuristics and ClamAV detections strongly suggest this is a Hancitor dropper, which is known to download and execute further stages. The presence of an embedded OLE object with Ole10Native indicators points to a likely exploitation vector, possibly CVE-2026-21514.

Heuristics 10

  • OOXML Ole10Native with payload/link indicators — possible CVE-2026-21514 high CVE likely CVE_2026_21514
    Office document contains embedded OLE (word/embeddings/oleObject1.bin) with Ole10Native plus executable, PE, or risky remote-link indicators. This is a likely CVE-2026-21514 exploitation shape.
  • Shell() call in VBA critical OLE_VBA_SHELL
    Shell() call in VBA
  • ClamAV: Doc.Dropper.Hancitor-9845854-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Dropper.Hancitor-9845854-0
  • ClamAV detection on extracted artifact critical EXTRACTED_FILE_CLAMAV
    ClamAV flagged at least one file extracted from inside this sample. Even when the wrapping document carries no AV detection of its own, a hit on the carved artifact is a strong indicator the sample is a delivery vehicle.
  • Document_Open macro high OLE_VBA_DOCOPEN
    Document_Open macro
  • CreateObject call high OLE_VBA_CREATEOBJ
    CreateObject call
  • Suspicious extracted artifact high EXTRACTED_FILE_STATIC_TRIAGE
    One or more files extracted from inside this sample matched static suspicious-content checks such as script obfuscation, encoded payload blobs, packed data, or execution/download terms.
  • VBA project inside OOXML medium OOXML_VBA
    Document contains vbaProject.bin — VBA macros present
  • Embedded OLE object medium OOXML_OLE_OBJECT
    Document contains an embedded OLE object
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://schemas.microsoft.com/office/word/2010/wordprocessingCanvas
    • http://schemas.openxmlformats.org/markup-compatibility/2006
    • http://schemas.openxmlformats.org/officeDocument/2006/relationships
    • http://schemas.openxmlformats.org/officeDocument/2006/math
    • http://schemas.microsoft.com/office/word/2010/wordprocessingDrawing
    • http://schemas.openxmlformats.org/drawingml/2006/wordprocessingDrawing
    • http://schemas.openxmlformats.org/wordprocessingml/2006/main
    • http://schemas.microsoft.com/office/word/2010/wordml
    • http://schemas.microsoft.com/office/word/2012/wordml
    • http://schemas.microsoft.com/office/word/2010/wordprocessingGroup
    • http://schemas.microsoft.com/office/word/2010/wordprocessingInk
    • http://schemas.microsoft.com/office/word/2006/wordml
    • http://schemas.microsoft.com/office/word/2010/wordprocessingShape

Extracted artifacts 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
macros.bas
962cad86fbd6a62147394233f0f7882da46dd2a7426b9802f637ccd540345463		 vba-macro oletools.olevba.extract_macros (decoded VBA source from OOXML) 3953 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact contains 1 shell/COM execution token(s). Carved macro source contains an auto-exec entry point and execution/download terms.
ooxml_oleobject_00.bin
f8f877c96b3d67fbb36cabc17d0e5e0ab15c69b2ca1d1251384916cb7f74f929		 ooxml-ole-object OOXML embedded OLE part: word/embeddings/oleObject1.bin 577536 bytes
Detection
ClamAV: Win.Dropper.PinkSbot-9853702-0
Obfuscation or payload: unlikely
ooxml_oleobject_00_ole10native_00.bin
fce0977c4e43b186e3ed74e21431c58b7410c12e235fe4259f381092e0c2333d		 ole-package OOXML word/embeddings/oleObject1.bin Ole10Native stream: Ole10Native 570731 bytes
Detection
ClamAV: Win.Dropper.PinkSbot-9853702-0
Obfuscation or payload: unlikely
vbaProject_00.bin
e142aa54caff0b8481705835ff60626f89e03e57d4060face58d9502afdd43d6		 vba-project OOXML VBA project: word/vbaProject.bin 25088 bytes
Detection
ClamAV: Doc.Dropper.Hancitor-9845854-0
Obfuscation or payload: likely
Carved artifact contains 1 shell/COM execution token(s). Carved macro source contains an auto-exec entry point and execution/download terms.
emf_00.emf
bbb3185b4f0876d25af093e114f387829b1a86368ee41316960d035053ea3b16		 ooxml-emf OOXML EMF part: word/media/image2.emf 18548 bytes

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