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

Static analysis result for SHA-256 178fa97781244b23…

MALICIOUS

Office (OOXML) / .DOC

546.2 KB Created: 2024-09-20 09:36:00 UTC Authoring application: Microsoft Office Word 12.0000
MD5: 2ae2aa6bd01bf7a4df7112669486d293 SHA-1: 3831e142186ae417cfaefb5b1dd18bfd285e4ea5 SHA-256: 178fa97781244b230e4c5ba8fda006543ba3a7bc06b2b8d92905f63206695a53
142 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The file exhibits characteristics of a malicious document, including remote template injection and embedded OLE objects, as indicated by the OOXML heuristics. The embedded URL 'https://ccurl.xyz/nOok' is a strong indicator of a malicious payload download. The ClamAV detection further supports its malicious nature, suggesting it's a downloader or agent.

Heuristics 5

  • ClamAV: Win.Malware.Agent-10036296-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Win.Malware.Agent-10036296-0
  • Remote template injection high OOXML_REMOTE_TEMPLATE
    Document references a remote template URL (https://ccurl.xyz/nOok) — 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://ccurl.xyz/nOok
  • Embedded OLE object medium OOXML_OLE_OBJECT
    Document contains an embedded OLE object
  • 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 https://ccurl.xyz/nOok
    • 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
7791c2ac8482b762dc334395c0445c0b91b48a6221d05717cb914f691b410907		 ooxml-ole-object OOXML embedded OLE part: word/embeddings/Microsoft_Office_Excel_97-2003_Worksheet1.xls 152064 bytes
ooxml_oleobject_01.bin
479389cc54b83bcabc628dfc6d85f6599060a1aa6d0bd8a178a4b36d09f66072		 ooxml-ole-object OOXML embedded OLE part: word/embeddings/Microsoft_Office_Excel_Worksheet1.xlsx 353312 bytes
emf_00.emf
e0a9dc5461fe54379431b00201b6e4c99227aa466c7f5ce687cac8559e2bd399		 ooxml-emf OOXML EMF part: word/media/image2.emf 703320 bytes
emf_01.emf
d0a35f9f9075f1933131a422fb8e7b203cfa39b20a825414471ef91d4c1d1b68		 ooxml-emf OOXML EMF part: word/media/image1.emf 38272 bytes

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