Doc.Downloader.Loda — Office (OOXML) / .DOC malware analysis

Static analysis result for SHA-256 ca0405849f7efd23…

MALICIOUS

Office (OOXML) / .DOC

16.0 KB Created: 2023-03-27 22:13:00 UTC Authoring application: Microsoft Office Word 12.0000 First seen: 2023-09-12
MD5: b2c7fb49a79034a39738cf9cb2a7a3dc SHA-1: f07e5bf4296558c6004b4d8b6533abc501fcbb0f SHA-256: ca0405849f7efd23c2153e1670bbc0ad3894e5b9154dfed5127d06afc093962f
162 Risk Score

Malware Insights

Doc.Downloader.Loda · confidence 95%

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious File T1059.005 Visual Basic

The file is identified as malicious by ClamAV with the signature Doc.Downloader.Loda-7570590-0. It uses remote template injection and external relationships pointing to http://185.28.39.17:7777/185.28.39.18/chungzx.doc, a common technique for downloading secondary payloads. The document body, while appearing to be a parts list, is likely a lure to encourage users to enable macros, a tactic explicitly flagged by the SE_ENABLE_LURE heuristic.

Heuristics 5

  • ClamAV: Doc.Downloader.Loda-7570590-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Loda-7570590-0
  • Remote template injection high OOXML_REMOTE_TEMPLATE
    Document references a remote template URL (http://185.28.39.17:7777/185.28.39.18/chungzx.doc) — 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 high OOXML_EXTERNAL_REL
    External target in word/_rels/settings.xml.rels: http://185.28.39.17:7777/185.28.39.18/chungzx.doc
  • Macro/content-enable lure medium SE_ENABLE_LURE
    Document instructs the user to enable macros or editing — a common technique used by malware droppers to bypass Office macro security settings
  • 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://185.28.39.17:7777/185.28.39.18/chungzx.doc
    • 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

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