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

Static analysis result for SHA-256 5a90e4572684ebd8…

MALICIOUS

Office (OOXML) / .DOC

546.2 KB Created: 2024-09-20 09:36:00 UTC Authoring application: Microsoft Office Word 12.0000
MD5: bf458c38c8e69ba831ba06e3d5445712 SHA-1: 918012de4df6c4b22ddda17e710d8d175132d0ee SHA-256: 5a90e4572684ebd8016b442afb818d690adde47b00c3f2de8b11d99a16ffbfdb
82 Risk Score

Malware Insights

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

The sample exhibits multiple indicators of malicious activity, including remote template injection and external relationship heuristics, both pointing to the URL https://topkale.me/LCuV6z. The presence of embedded OLE objects further suggests an attempt to deliver a secondary payload. While no scripts were directly extracted, the overall pattern indicates a malicious document designed to exploit vulnerabilities and download further malicious content.

Heuristics 4

  • Remote template injection high OOXML_REMOTE_TEMPLATE
    Document references a remote template URL (https://topkale.me/LCuV6z) — 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://topkale.me/LCuV6z
  • 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://topkale.me/LCuV6z
    • 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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