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

Static analysis result for SHA-256 c3553f599d45558b…

MALICIOUS

Office (OOXML) / .DOC

175.3 KB Created: 2023-06-11 02:07:00 UTC Authoring application: Microsoft Office Word 12.0000 First seen: 2023-10-04
MD5: 45db666c7e12d9c92543265178d34dac SHA-1: 77b13d596a6f83d87d317aca0263627e91a2af66 SHA-256: c3553f599d45558b9a0f42dceec31a0a81451d415f7db53acba49f057b77ccf0
162 Risk Score

Malware Insights

Doc.Downloader.Loda · confidence 95%

MITRE ATT&CK
T1204.002 Malicious File

The sample utilizes OOXML remote template injection and external relationships to fetch a secondary payload from the URL http://94.156.253.128/uno/ioi0i0ioi0ioioII0IOIoi00ioioioI0IOIoi0IOI0O00000##############0000000000##############00000.dOC. The embedded OLE object further suggests a multi-stage infection process. ClamAV detection confirms this as a downloader, likely Doc.Downloader.Loda.

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://94.156.253.128/uno/ioi0i0ioi0ioioII0IOIoi00ioioioI0IOIoi0IOI0O00000##############0000000000##############00000.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://94.156.253.128/uno/ioi0i0ioi0ioioII0IOIoi00ioioioI0IOIoi0IOI0O00000##############0000000000##############00000.dO
  • 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 http://94.156.253.128/uno/ioi0i0ioi0ioioII0IOIoi00ioioioI0IOIoi0IOI0O00000##############0000000000##############00000.dOC
    • http://94.156.253.128/uno/ioi0i0ioi0ioioII0IOIoi00ioioioI0IOIoi0IOI0O00000##############0000000000##############00000.dO
    • 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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
ooxml_oleobject_00.bin
c52df25578fb50b52c4f1a74b7e7ed86101558050e4ed4bd6fd611abd794c01d		 ooxml-ole-object OOXML embedded OLE part: word/embeddings/Microsoft_Office_Excel_Macro-Enabled_Worksheet1.xlsm 11617 bytes
emf_00.emf
1ab8f5abd845ffd0c61a61bb09bfcf20569b80b4496bccb58c623753cf40485c		 ooxml-emf OOXML EMF part: word/media/image2.emf 4056 bytes

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