Malicious Office (OLE) / .DOC — malware analysis report

Static analysis result for SHA-256 c747bd4a9335931d…

MALICIOUS

Office (OLE) / .DOC

311.5 KB Created: 2020-11-12 08:27:00 Authoring application: Microsoft Office Word
MD5: 1d3e4ce7f354995ef468cf7fffe5c39b SHA-1: 9d45984c41d702ce16ba3363bbf1c1e2a4b0315e SHA-256: c747bd4a9335931db7b98cf558825629654f77ea3227fa7517368853dc022c76
660 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell T1204.002 Malicious File T1059.005 Visual Basic

The sample is a malicious OLE document containing VBA macros that leverage ShellExecute and CreateObject to run an embedded PE executable. The presence of AutoOpen, Shell() calls, and references to PowerShell indicate a dropper functionality. The embedded executable was detected as a keylogger by ClamAV, suggesting the ultimate goal is information theft.

Heuristics 17

  • 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 PowerShell high SC_STR_POWERSHELL
    Reference to PowerShell
  • Reference to LoadLibrary API high SC_STR_LOADLIBRARY
    Reference to LoadLibrary API
  • Reference to GetProcAddress API high SC_STR_GETPROCADDRESS
    Reference to GetProcAddress API
  • AutoOpen macro high OLE_VBA_AUTOOPEN
    AutoOpen 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
81fa75ba724d03f97afe4daefbeb925b040f227318a0d147ebae2c3812dbfe83		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 2715 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_0002189c.exe
d6ebfdcea22f2999f5fcc412c377e24b195572965f607131a626a929d5b73410		 embedded-pe Office MZ+PE at offset 0x2189C 181604 bytes
Detection
ClamAV: Win.Keylogger.Cridex-9807692-0
Obfuscation or payload: likely
Carved macro source contains an auto-exec entry point and execution/download terms.
ole10native_00.bin
8c3825d2db7bd4770f18c125ec8eb9c965e1d60c9863b8ec4f8c52af184ade69		 ole-package OLE Ole10Native stream: ObjectPool/_1667005246/Ole10Native 156086 bytes

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