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

Static analysis result for SHA-256 5c6d8f7171e7d56d…

MALICIOUS

Office (OOXML) / .DOC

180.8 KB Created: 2021-12-13 19:32:00 UTC Authoring application: Microsoft Office Word 16.0000
MD5: afdfd01af747b150d37bf2639030e0ed SHA-1: 4383d8c355dbe58fe3c7c2084613882d69d990b4 SHA-256: 5c6d8f7171e7d56dd19c000b61bbbec553537538b6bab5d56d247c6e235c11bd
64 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1137.006 Office Application Build

The presence of an embedded OLE object and heuristics indicating a password-protected archive lure suggest this document is designed to trick the user into opening a malicious payload. The embedded OLE object itself is a suspicious artifact, likely containing the next stage of the attack. The document's structure and heuristics point towards a common phishing or malware delivery technique.

Heuristics 4

  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • Embedded OLE object medium OOXML_OLE_OBJECT
    Document contains an embedded OLE object
  • Suspicious extracted artifact info EXTRACTED_FILE_STATIC_TRIAGE
    One or more files extracted from inside this sample matched static suspicious-content checks such as script obfuscation, encoded payload blobs, packed data, or execution/download terms.
  • 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://schemas.microsoft.com/office/word/2010/wordprocessingCanvas
    • http://schemas.microsoft.com/office/drawing/2014/chartex
    • http://schemas.microsoft.com/office/drawing/2015/9/8/chartex
    • http://schemas.microsoft.com/office/drawing/2015/10/21/chartex
    • http://schemas.microsoft.com/office/drawing/2016/5/9/chartex
    • http://schemas.microsoft.com/office/drawing/2016/5/10/chartex
    • http://schemas.microsoft.com/office/drawing/2016/5/11/chartex
    • http://schemas.microsoft.com/office/drawing/2016/5/12/chartex
    • http://schemas.microsoft.com/office/drawing/2016/5/13/chartex
    • http://schemas.microsoft.com/office/drawing/2016/5/14/chartex
    • http://schemas.openxmlformats.org/markup-compatibility/2006
    • http://schemas.microsoft.com/office/drawing/2016/ink
    • http://schemas.microsoft.com/office/drawing/2017/model3d
    • http://schemas.openxmlformats.org/officeDocument/2006/relationships
    • http://schemas.openxmlformats.org/officeDocument/2006/math
    • http://schemas.microsoft.com/office/word/2010/wordprocessingDrawing
    • http://schemas.openxmlformats.org/drawingml/2006/wordprocessingDrawing
    • http://schemas.openxmlformats.org/wordprocessingml/2006/main
    • http://schemas.microsoft.com/office/word/2010/wordml
    • http://schemas.microsoft.com/office/word/2012/wordml
    • http://schemas.microsoft.com/office/word/2018/wordml/cex
    • http://schemas.microsoft.com/office/word/2016/wordml/cid
    • http://schemas.microsoft.com/office/word/2018/wordml
    • http://schemas.microsoft.com/office/word/2020/wordml/sdtdatahash
    • http://schemas.microsoft.com/office/word/2015/wordml/symex
    • http://schemas.microsoft.com/office/word/2010/wordprocessingGroup
    • http://schemas.microsoft.com/office/word/2010/wordprocessingInk
    • http://schemas.microsoft.com/office/word/2006/wordml
    • http://schemas.microsoft.com/office/word/2010/wordprocessingShape

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
ooxml_oleobject_00.bin
2e4e448ed275fd3cc3569e0b959513e651ae737ff97d201ea4652aea4949f46c		 ooxml-ole-object OOXML embedded OLE part: word/embeddings/oleObject1.bin 169984 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact entropy is 7.97, consistent with packed or encrypted content.
ooxml_oleobject_00_ole10native_00.bin
f21f78237b0c76c575b727e8a07e526b4ee0bd9b101df69195742a1d926a21fb		 ole-package OOXML word/embeddings/oleObject1.bin Ole10Native stream: Ole10Native 166288 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact entropy is 8.00, consistent with packed or encrypted content.
emf_00.emf
81416083031bd125c64a867dea66e24f568d850562bd22683aa8164bb14306b7		 ooxml-emf OOXML EMF part: word/media/image1.emf 7436 bytes

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