Malicious RTF — malware analysis report

Static analysis result for SHA-256 00bc76898f07f181…

MALICIOUS

RTF

260.4 KB Created: 2016-12-05 11:18:00 Authoring application: Msftedit 5.41.15.1507 First seen: 2019-11-20
MD5: 996054b4ebf1a81661b6b450113257a2 SHA-1: 2d736f3f0d0ab9ac6d80511e848cbf1bfcdabe29 SHA-256: 00bc76898f07f18122f386b890d79c9338d223a5b5c89213a4bbf1040bccfa28
182 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution T1566.001 Spearphishing Attachment

The RTF file contains embedded OLE objects and triggers critical heuristics for CVE-2017-8759, indicating exploitation of MSXML. ClamAV also detected it as Rtf.Exploit.CVE_2015_1641-6428461-0. The document body discusses exploit kits and vulnerabilities, suggesting the file's purpose is to leverage these exploits for initial execution, likely to download further malicious content.

Heuristics 6

  • CVE-2017-8759 — MSXML SAX OLE activation critical CVE likely CVE_2017_8759
    RTF contains a hex-encoded OLE1 object for Msxml2.SAXXMLReader.6.0 followed by an embedded OLE compound document, and the document requests OLE activation. This matches the RTF staging shape used for CVE-2017-8759 SOAP/WSDL parser code injection.
  • ClamAV: Rtf.Exploit.CVE_2015_1641-6428461-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Rtf.Exploit.CVE_2015_1641-6428461-0
  • OLE object data medium RTF_OBJDATA
    RTF contains 3 \objdata section(s) — embedded OLE objects
  • Embedded OLE object medium RTF_OBJEMB
    RTF contains \objemb — embedded OLE object
  • OlePres presentation stream in RTF OLE object medium RTF_OLEPRES_STREAM
    RTF contains an embedded OLE object with an OlePres presentation stream. OlePres is an OLE presentation marker and is not enough on its own to identify CVE-2025-21298.
  • 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/2003/wordml In RTF body

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
objdata_00_off00012d09.bin rtf-objdata-decoded RTF \objdata at offset 0x12D09 3097 bytes
SHA-256: d1b181cb7a22091e0a12915e81814d85302a01c4bb49dd6bb81351fd10e41a1b
objdata_01_off0001313c.bin rtf-objdata-decoded RTF \objdata at offset 0x1313C 74 bytes
SHA-256: 4efebb54635b6a6e39c064b0712252d90892390b466987b6af548bab8c109b7e
objdata_02_off00014662.bin rtf-objdata-decoded RTF \objdata at offset 0x14662 50242 bytes
SHA-256: 66b8859462ee6a302f8a35beb2632263a80c102f4db53cd6be0feca7e18abcea

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