Hancitor — Office (OLE) / .DOC malware analysis

Static analysis result for SHA-256 36690bf953192eb2…

MALICIOUS

Office (OLE) / .DOC

383.0 KB Created: 2020-12-10 10:21:00 Authoring application: Microsoft Office Word
MD5: 9bcd01e5e8544e3bd39c0594f5407136 SHA-1: 4b927038a6c86c14a2bbd0019a7b251b9097339f SHA-256: 36690bf953192eb205f486a364f788fd75aafa0e119bacb039f2503d4e81d0fa
620 Risk Score

Malware Insights

Hancitor · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic T1204.002 Malicious File T1105 Ingress Tool Transfer T1059.003 Windows Command Shell

The sample is a malicious Office document containing VBA macros. The critical OLE_VBA_SHELL heuristic indicates the Document_Open macro uses the Shell() function to execute an embedded PE executable. ClamAV detections for 'Doc.Dropper.Hancitor' and 'Win.Keylogger.Zusy' further confirm its malicious nature and suggest a dropper or keylogger family. The embedded executable and macro file are the primary IOCs.

Heuristics 16

  • OLE with Ole10Native — possible CVE-2026-21514 exploitation high CVE likely CVE_2026_21514
    Document contains a Word OLE object with Ole10Native plus executable, PE, or risky remote-link indicators. CVE-2026-21514 exploits OLE metadata validation; this stronger structure is treated as likely exploitation.
  • Shell() call in VBA critical OLE_VBA_SHELL
    Shell() call in VBA
  • Embedded PE executable critical OLE_EMBEDDED_EXE
    MZ/PE header found inside document — possible embedded executable
  • 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.
  • Reference to ShellExecute API high SC_STR_SHELLEXEC
    Reference to ShellExecute API
  • Reference to LoadLibrary API high SC_STR_LOADLIBRARY
    Reference to LoadLibrary API
  • Reference to GetProcAddress API high SC_STR_GETPROCADDRESS
    Reference to GetProcAddress API
  • Document_Open macro high OLE_VBA_DOCOPEN
    Document_Open macro
  • CreateObject call high OLE_VBA_CREATEOBJ
    CreateObject call
  • VBA p-code auto-exec with execution tokens high OLE_VBA_PCODE_AUTOEXEC_EXEC
    Compiled VBA/cache stream contains an auto-execution token together with shell/download/object-execution tokens. This catches p-code-only or source-extraction-failure macro documents where visible source is unavailable.
  • 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.
  • Reference to VirtualAlloc API medium SC_STR_VIRTUALALLOC
    Reference to VirtualAlloc API
  • Reference to VirtualProtect API medium SC_STR_VIRTUALPROTECT
    Reference to VirtualProtect API
  • VBA macros detected medium OLE_VBA_MACROS
    Document contains VBA macro code
  • 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.openxmlformats.org/drawingml/2006/main

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
macros.bas
8a785ce6e2fffa577cd91cd1684604915109b1683bbce117cd5cd456c7c0c625		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 3696 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.
embedded_office_00021a71.exe
eb501d784764875d0b720a83ef80e6785715e110aaa9355b0934fc2ffa3006ee		 embedded-pe Office MZ+PE at offset 0x21A71 254351 bytes
Detection
ClamAV: Win.Keylogger.Zusy-9807586-0
Obfuscation or payload: likely
Carved macro source contains an auto-exec entry point and execution/download terms.
ole10native_00.bin
7ce7dd225769563f45f0735abfe74007e64713d9fedae4c46bb26ab01bc928e2		 ole-package OLE Ole10Native stream: ObjectPool/_1669079287/Ole10Native 215861 bytes
Detection
ClamAV: Win.Keylogger.Zusy-9807586-0
Obfuscation or payload: unlikely

Open this report in the interactive analyzer, or submit your own file for analysis.