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

Static analysis result for SHA-256 204e8e209de5d205…

MALICIOUS

Office (OLE) / .DOC

802.5 KB First seen: 2026-05-13
MD5: 6ac9e7d34d83bb50531e69712a30c6a8 SHA-1: 42d1ffe57c06a281e78022d8381ef83454b3b03c SHA-256: 204e8e209de5d205ccbae121bcc43864b213664c73f4ac4a4c5e12692ffe0ff0
100 Risk Score

Heuristics 2

  • Equation Editor Ole10Native payload — CVE-2017-11882 critical CVE likely CVE_2017_11882_EQUATION_OLE10NATIVE
    An embedded Microsoft Equation 3.0 object (CLSID 0002CE02-0000-0000-C000-000000000046) carries an Ole10Native packager stream instead of the normal Equation Native/MTEF data. This is the weaponized Equation Editor RCE delivery shape used by CVE-2017-11882 / CVE-2018-0802 maldocs. The payload (font-record overflow + shellcode) is frequently encrypted and the stream name case-scrambled to evade scanners, but an Equation object holding an Ole10Native stream has no benign use.
  • Equation Editor OLE object high CVE related OLE_EQUATION_EDITOR
    Contains Equation Editor object — related to CVE-2017-11882 / CVE-2018-0802 exploitation, but CLSID presence alone is not the malformed MTEF exploit primitive.

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
ole10native_00.bin ole-package OLE Ole10Native stream: OlE10NAtiVe 812631 bytes
SHA-256: d97c2ef1bd370488327e1504d33c90cca8a3d1b8600da8d8f12b0673af7f558d

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