Hancitor Office (OLE) / .DOCX malware analysis — malicious · cc3a0b07038fb633

MALICIOUS

Office (OLE) / .DOCX

1.32 MB Created: 2021-04-28 09:05:00 Authoring application: Microsoft Office Word

MD5: 4e001e775644f38036b0e9334455caa2 SHA-1: 874dfa535fb3bfd5d13317bd00c16bf031b905d0 SHA-256: cc3a0b07038fb633749b8de0b0fc5b026658853098adc03a918f149582e234a9

700 Risk Score

Malware Insights

Hancitor · confidence 95%

MITRE ATT&CK

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

The sample is a malicious Office document containing VBA macros. The Document_Open macro utilizes WScript.Shell and CreateObject to execute an embedded PE executable (embedded_office_0008fa6e.exe). This behavior is consistent with Hancitor, a known downloader family. The embedded PE executable and the VBA macro file are identified as IOCs.

Heuristics 18

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.
Shell() call in VBA critical OLE_VBA_SHELL

Shell() call in VBA
WScript.Shell usage critical OLE_VBA_WSCRIPT

WScript.Shell usage
Embedded PE executable critical OLE_EMBEDDED_EXE

MZ/PE header found inside document — possible embedded executable
ClamAV: Doc.Phishing.Hancitor-9853332-2 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Phishing.Hancitor-9853332-2
Reference to CreateProcess API high SC_STR_CREATEPROCESS

Reference to CreateProcess API
Reference to Windows Script Host high SC_STR_WSCRIPT

Reference to Windows Script Host
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.

Filename	Kind	Source	Size
`macros.bas` `a142859d66edba565cb476ed281ce48b0fb21552871dc7fc85bf1deab1f2d994`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	5817 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_0008fa6e.exe` `b99253ac475482b479e5fefb8921e1cb09a406ca2d292c0bd83587fc3f342a3e`	embedded-pe	Office MZ+PE at offset 0x8FA6E	796562 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved macro source contains an auto-exec entry point and execution/download terms.
`ole10native_00.bin` `24117bb97d05b5f20af4ae7e12d11c662db1ffe223b9cea8818c4e30ba37984f`	ole-package	OLE Ole10Native stream: ObjectPool/_1681080986/Ole10Native	745772 bytes

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