Hancitor Office (OLE) / .DOCX malware analysis — malicious · 35dd54998c215027

MALICIOUS

Office (OLE) / .DOCX

534.5 KB Created: 2021-10-19 14:09:00 Authoring application: Microsoft Office Word First seen: 2021-10-23

MD5: c47745c73485b8492a301c2754ff895b SHA-1: 9a90d06c544c9848d7f384921812877a4fdad5f3 SHA-256: 35dd54998c21502765a5807c3d0da5f67f09e93d90be66881cbe5d5360ae17b0

164 Risk Score

Malware Insights

Hancitor · confidence 95%

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.005 Visual Basic

The sample contains a VBA macro that executes upon opening the document, as indicated by the Document_Open heuristic. The macro attempts to create a password-protected document named 'zo.doc' using the password 'doyouknowthatthegodsofdeathonlyeatapples?'. This behavior is consistent with the Hancitor malware family, which often uses macro-enabled documents to download and execute further payloads. The ClamAV detection further supports this attribution.

Heuristics 6

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.
ClamAV: Doc.Downloader.Hancitor10210-9903725-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Downloader.Hancitor10210-9903725-0
Document_Open macro high OLE_VBA_DOCOPEN

Document_Open macro
VBA macros detected medium OLE_VBA_MACROS

Document contains VBA macro code
Suspicious extracted artifact info 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.
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/2006/encryption
- http://schemas.microsoft.com/office/2006/keyEncryptor/password
- http://schemas.microsoft.com/office/2006/keyEncryptor/certificate
- http://schemas.openxmlformats.org/drawingml/2006/main

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`macros.bas` `0f66e8b0976dfa1fe567b1dc29fee8e23ed085308518898b6cdda18441ac4ff8`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	3628 bytes
`ole10native_00.bin` `9568e0188f482ae50396bc8caaf09c86bdcb4599d6fa54b07a0a6268a6e9fce6`	ole-package	OLE Ole10Native stream: ObjectPool/_1696132583/Ole10Native	349987 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact entropy is 7.98, consistent with packed or encrypted content.

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