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

Static analysis result for SHA-256 89d4d85592bf0b5e…

MALICIOUS

Office (OOXML) / .DOCX

1.57 MB Created: 2024-01-04 06:12:00 UTC Authoring application: Microsoft Office Word 15.0000
MD5: 8202209354ece5c53648c52bdbd064f0 SHA-1: 683210af38ef15f1bacb67ddc42f085bee05cf35 SHA-256: 89d4d85592bf0b5e8b55c2d62c9050bfa8c3017f9f497134dbacbb2a0f13a09e
140 Risk Score

Malware Insights

MITRE ATT&CK
T1204 Malicious Link T1566.001 Phishing: Spearphishing Attachment

The OOXML document contains external OLE object relationships and OLE2Link remote document references that exploit CVE-2017-8759 and CVE-2023-36884. These vulnerabilities are used to automatically load and execute an external RTF file from the URL https://president-gov-lk.donwloaded.net/a4884a53/file.rtf, indicating a likely exploit delivery mechanism.

Heuristics 3

  • CVE-2023-36884 — external RTF auto-load relationship critical CVE likely CVE_2023_36884
    Document auto-load relationship references a remote RTF file (https://president-gov-lk.donwloaded.net/a4884a53/file.rtf), matching the stronger Storm-0978/RomCom external-RTF delivery shape. Plain clickable hyperlinks are not enough for this CVE rule.
    URL https://president-gov-lk.donwloaded.net/a4884a53/file.rtf
    • http://schemas.openxmlformats.org/officedocument/2006/relationships/oleobject
  • OOXML OLE2Link remote document — CVE-2017-8759 related high CVE related CVE_2017_8759_RELATED
    Document contains an o:OLEObject Type=Link whose external oleObject relationship fetches a remote Office-looking document. That is the OOXML OLE2Link staging shape used by CVE-2017-8759 campaigns when the remote document/WSDL supplies the SOAP moniker payload; the local file alone does not contain the WSDL body needed for an exact match.
    URL https://president-gov-lk.donwloaded.net/a4884a53/file.rtf
  • External OLE object relationship high OOXML_EXTERNAL_OLE_OBJECT
    Document contains an oleObject relationship whose target is an external HTTP(S) URL. Office resolves this through OLE/object update paths rather than as a normal user-clicked hyperlink.
    URL https://president-gov-lk.donwloaded.net/a4884a53/file.rtf

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