Malicious Office (OOXML) — malware analysis report

Static analysis result for SHA-256 3d7525f9904e4681…

MALICIOUS

Office (OOXML)

23.2 KB First seen: 2021-05-26
MD5: 51685619695d0cdb2dfe94f9acd96eb0 SHA-1: 8307efcd8b3255d6eddb4a2a230228d0448b9398 SHA-256: 3d7525f9904e468183705a40f5a014eb7fbdddd72d8d7856005f34c0eb6f9d94
82 Risk Score

Malware Insights

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

The OOXML_ALTCHUNK_OPAQUE heuristic indicates the document is attempting to import external, unrecognised content, which is a common technique for loading malicious payloads. The presence of external relationships and embedded URLs pointing to doctricant.com further supports this, suggesting the document acts as a downloader. No scripts were extracted from this sample.

Heuristics 4

  • altChunk imports unrecognised content high OOXML_ALTCHUNK_OPAQUE
    altChunk relationship resolves to a packaged part whose content does not match a known chunk format. Treat with suspicion — altChunk is rarely used outside RTF/HTML smuggling.
  • Remote image (web beacon / tracking pixel) medium OOXML_IMAGE_BEACON
    Document references an external image URL — loads automatically on open, revealing IP address and timestamp to the server (used for phishing tracking and NTLM hash theft on corporate networks)
  • External relationship medium OOXML_EXTERNAL_REL
    External target in word/_rels/document.xml.rels: https://www.doctricant.com/eur?id=ZWRkcWFxLzU0Z0pCTmhzeW5GRHJYd3JkSjd0YkN5UWtsYkVxNnZTVWlqRjVhdC9VcHd4T2IrVi9oY2tDVVAvOG
  • 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://www.doctricant.com/eur?id=ZWRkcWFxLzU0Z0pCTmhzeW5GRHJYd3JkSjd0YkN5UWtsYkVxNnZTVWlqRjVhdC9VcHd4T2IrVi9oY2tDVVAvOGNvWTN2MzJ3SWJzMlREWkhoT2ZrRDg2Rm5xR2UzRHRCcHB2MXYwZGg2NjYvZGpCcVJTWCs0VVBJaVhnNDYxcVR4ajUyNkZrUnZjWXBVOG5LbG5Vbkl4NjlzY2l4M3JORTV4aDVlVGttekhxWXVnWWpJTENaeWtSQjh3eUdHaGVTNElmMVhQcF In document text (OOXML body / shared strings)
    • https://www.doctricant.com/eur?id=ZWRkcWFxLzU0Z0pCTmhzeW5GRHJYd3JkSjd0YkN5UWtsYkVxNnZTVWlqRjVhdC9VcHd4T2IrVi9oY2tDVVAvOGOOXML external relationship
    • https://www.doctricant.com/eur?id=ZWRkcWFxLzU0Z0pCTmhzeW5GRHJYd3JkSjd0YkN5UWtsYkVxNnZTVWlqRjVhdC9VcHd4T2IrVi9oY2tDVVAvOGNvWTN2MzJ3SWJzMlREWkhoT2ZrRDg2Rm5xR2UzRHRCcHB2MXYwZGg2NjYvZGpCcVJTWCs0VVBJaVhnNDOOXML external relationship
    • http://purl.org/dc/elements/1.1/In document text (OOXML body / shared strings)
    • http://purl.org/dc/terms/In document text (OOXML body / shared strings)
    • http://www.w3.org/2001/XMLSchema-instanceIn document text (OOXML body / shared strings)
    • http://schemas.openxmlformats.org/package/2006/metadata/core-propertiesIn document text (OOXML body / shared strings)
    • http://schemas.openxmlformats.org/package/2006/relationshipsIn document text (OOXML body / shared strings)
    • http://schemas.openxmlformats.org/officeDocument/2006/relationships/officeDocumentIn document text (OOXML body / shared strings)
    • http://schemas.openxmlformats.org/package/2006/relationships/metadata/core-propertiesIn document text (OOXML body / shared strings)

Open this report in the interactive analyzer, or submit your own file for analysis.