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

Static analysis result for SHA-256 f59ed31f271d90f6…

MALICIOUS

Office (OOXML) / .DOC

89.3 KB Created: 2024-11-25 08:51:00 UTC Authoring application: Microsoft Office Word 12.0000
MD5: 8c524ecd5f8d8bd135dbe480badd50b9 SHA-1: 788aa9e068861faf987cb63581852374bd34f502 SHA-256: f59ed31f271d90f65b0ef6c34aaedec49993551818f7566968a944dafb7d36b4
82 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File

The OOXML document contains heuristics indicating remote template injection and external relationships, both pointing to the URL https://short.ruksk.com/6xX3W2?&chateau=capable&brother=needless&vegetable=therapeutic&guitarist=tacit&asterisk. This suggests the document is designed to download and execute a secondary payload from this external source. The presence of an embedded OLE object further supports the malicious intent.

Heuristics 5

  • Remote template injection high OOXML_REMOTE_TEMPLATE
    Document references a remote template URL (https://short.ruksk.com/6xX3W2?&chateau=capable&brother=needless&vegetable=therapeutic&guitarist=tacit&asterisk) — a common remote-template-injection vector used by Hancitor, Emotet and many phishing campaigns. Word can fetch and apply the remote template; macros in that template may execute depending on Office policy and trust state.
  • External relationship medium OOXML_EXTERNAL_REL
    External target in word/_rels/settings.xml.rels: https://short.ruksk.com/6xX3W2?&chateau=capable&brother=needless&vegetable=therapeutic&guitarist=tacit&asterisk
  • Embedded OLE object medium OOXML_OLE_OBJECT
    Document contains an embedded OLE object
  • 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.openxmlformats.org/markup-compatibility/2006
    • http://schemas.openxmlformats.org/officeDocument/2006/relationships
    • http://schemas.openxmlformats.org/officeDocument/2006/math
    • http://schemas.openxmlformats.org/drawingml/2006/wordprocessingDrawing
    • http://schemas.openxmlformats.org/wordprocessingml/2006/main
    • http://schemas.microsoft.com/office/word/2006/wordml

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
ooxml_oleobject_00.bin
f236536e5f31216edfa9d145a8f8de74e7fb34a25e0470842c7d70d2c5d405e0		 ooxml-ole-object OOXML embedded OLE part: word/embeddings/Microsoft_Office_Excel_97-2003_Worksheet1.xls 182784 bytes
ooxml_oleobject_00_ole10native_00.bin
bdf966db1cc87fea5dc0c7408b7d9a750bac7995b62c8f4514feb7ad6e8c069e		 ole-package OOXML word/embeddings/Microsoft_Office_Excel_97-2003_Worksheet1.xls Ole10Native stream: MBD00074A93/Ole10Native 26683 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact entropy is 7.59, consistent with packed or encrypted content.
emf_00.emf
a4ae28d467d266c639ff45ec8cab9baa1aba5d8045c54523199f4ed83779dbbc		 ooxml-emf OOXML EMF part: word/media/image1.emf 52712 bytes
emf_01.emf
cafa904c5cb5e70d820ac212c29b6b492c657a10bf932d531bf9a4551864cd04		 ooxml-emf OOXML EMF part: word/media/image2.emf 112564 bytes

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