Hancitor — Office (OOXML) / .DOC malware analysis

Static analysis result for SHA-256 ab80918fd8343507…

MALICIOUS

Office (OOXML) / .DOC

718.0 KB Created: 2021-03-18 05:25:00 UTC Authoring application: Microsoft Office Word 16.0000
MD5: a1ba6d313842fb0407fbe037ca84c5a2 SHA-1: af339e9a077fe9eef9dbdae2284e29d546ec2aca SHA-256: ab80918fd8343507b3b5f1f2f8a1f128209601124ebb26b527bee6992989ea29
320 Risk Score

Malware Insights

Hancitor · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic T1204.002 Malicious File

This OOXML document contains VBA macros, including a Document_Open macro, and uses CreateObject to likely download and execute a secondary payload. The presence of an embedded OLE object with executable indicators strongly suggests exploitation of CVE-2026-21514. ClamAV detections confirm this is a Hancitor dropper, which is known to deliver Cobalt Strike or other malware.

Heuristics 9

  • 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.
  • 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.microsoft.com/office/drawing/2014/chartex
    • http://schemas.microsoft.com/office/drawing/2015/9/8/chartex
    • http://schemas.microsoft.com/office/drawing/2015/10/21/chartex
    • http://schemas.microsoft.com/office/drawing/2016/5/9/chartex
    • http://schemas.microsoft.com/office/drawing/2016/5/10/chartex
    • http://schemas.microsoft.com/office/drawing/2016/5/11/chartex
    • http://schemas.microsoft.com/office/drawing/2016/5/12/chartex
    • http://schemas.microsoft.com/office/drawing/2016/5/13/chartex
    • http://schemas.microsoft.com/office/drawing/2016/5/14/chartex
    • http://schemas.openxmlformats.org/markup-compatibility/2006
    • http://schemas.microsoft.com/office/drawing/2016/ink
    • http://schemas.microsoft.com/office/drawing/2017/model3d
    • 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/2016/wordml/cid
    • http://schemas.microsoft.com/office/word/2015/wordml/symex
    • 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
9d7b2a93206eb3e44f1f97fefee1900f698e0d6bc85c6ed6eb80649305fd09e0		 vba-macro oletools.olevba.extract_macros (decoded VBA source from OOXML) 5030 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
345c37bbf358eeaa7b5c641fc2ca820b6d64599a85ab0604acde2d4ce42ed57f		 ooxml-ole-object OOXML embedded OLE part: word/embeddings/oleObject1.bin 225280 bytes
Detection
ClamAV: Win.Packed.Hancitor-9861452-0
Obfuscation or payload: unlikely
ooxml_oleobject_00_ole10native_00.bin
37a567d48868fb4b111cd76cddc9b467dd4ef125d248b068e34bb9d26467c3ce		 ole-package OOXML word/embeddings/oleObject1.bin Ole10Native stream: Ole10Native 215373 bytes
Detection
ClamAV: Win.Packed.Hancitor-9861452-0
Obfuscation or payload: unlikely
vbaProject_00.bin
741fc569244bf8423f6438ec79bea05ff44f66a685321b5c6530debf36652354		 vba-project OOXML VBA project: word/vbaProject.bin 40448 bytes
Detection
ClamAV: Doc.Dropper.Hancitor-9845854-0
Obfuscation or payload: likely
Carved artifact contains 2 shell/COM execution token(s). Carved macro source contains an auto-exec entry point and execution/download terms.
emf_00.emf
beb0d77eba27e18607561fa6f997202e3645395c0f9b9fe78610523149701608		 ooxml-emf OOXML EMF part: word/media/image2.emf 5000 bytes

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