Office (OLE) / .DOC malware analysis — malicious · 7952fe215ddf17bd

MALICIOUS

Office (OLE) / .DOC

1.16 MB Created: 2021-06-16 08:34:00 Authoring application: Microsoft Office Word

MD5: 83c5ad4cd6fa69fc698cfeeef930e769 SHA-1: b1b515aa2102bac11b59034ce7552ccd95884856 SHA-256: 7952fe215ddf17bdcd41de3433f78f7cab2d4c1313fc8f31cbfbb6fd60605508

642 Risk Score

Malware Insights

MITRE ATT&CK

T1059.005 Visual Basic T1204.002 Malicious File T1027 Obfuscated Files or Information

The sample is a malicious OLE document containing an embedded executable file and VBA macros. The 'Document_Open' macro is configured to execute shell commands, indicating it's designed to launch the embedded payload. The presence of the 'Win.Packed.Hancitor-9909883-0' ClamAV signature further confirms its malicious nature.

Heuristics 17

Office EPRINT stream contains EMF object high CVE related OLE_EPRINT_EMF_OBJECT

OLE ObjectPool contains an EPRINT stream with EMF data. This is rare in normal documents and is CVE-2007-3893/MS07-046-family evidence when paired with Office exploit payload anomalies, but the malformed EMF record is not proven by this rule alone.
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.
Embedded PE executable critical OLE_EMBEDDED_EXE

MZ/PE header found inside document — possible embedded executable
ClamAV: Win.Packed.Hancitor-9909883-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Win.Packed.Hancitor-9909883-0
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
Ole10Native package carries executable/script file type high OFFICE_PACKAGE_RISKY_FILE

OLE Package displayName or fullPath ends in an executable or script-capable extension. Even without UI extension spoofing, embedding a runnable payload inside an Office document is a high-risk delivery pattern.
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 — context-specific rules above attribute URLs they actually evaluated; this rule lists URLs that were present in the bytes but were not otherwise tied to a specific finding.

URL http://schemas.openxmlformats.org/drawingml/2006/main

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`macros.bas` `32d4782c1de3ef1d5ccba8fb22777ead1c5a8d3e66f743e83e296bf991dbbc7c`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	2064 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_0008f46e.exe` `9ee954b9916e175d7799af3087e098a5ae447588e2a4a42f2b16a43e1d465151`	embedded-pe	Office MZ+PE at offset 0x8F46E	625554 bytes
Detection ClamAV: Win.Packed.Hancitor-9909883-0 Obfuscation or payload: likely Carved macro source contains an auto-exec entry point and execution/download terms.
`ole10native_00.bin` `1be456699e5f3ec6be994c74613710da6061cd5d36b58a6a6fe72016e7896fae`	ole-package	OLE Ole10Native stream: ObjectPool/_1685312696/Ole10Native	592172 bytes
Detection ClamAV: Win.Packed.Hancitor-9909883-0 Obfuscation or payload: unlikely

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