RTF malware analysis — malicious · d5eb4a71bfc1c4d1

MALICIOUS

RTF

278.4 KB Created: 2018-07-11 01:29:00 First seen: 2021-10-27

MD5: ede7f18e1628a314aa497054c6373845 SHA-1: 81af145f806946c4e1a2e15053834f5769de3203 SHA-256: d5eb4a71bfc1c4d1c51067e333a0cc5c9a423f4f43f35f896fc3d2dd55cce936

182 Risk Score

Malware Insights

MITRE ATT&CK

T1203 Exploitation for Client Execution T1566.001 Spearphishing Attachment

The RTF file contains an embedded OLE object that is configured to automatically update using \objupdate, triggering an exploit for CVE-2017-8759. This vulnerability in MSXML allows for OLE activation, which is likely used to download and execute a secondary payload. The document body discusses the Australian Football International Cup, which appears to be a lure.

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.
URL Moniker in RTF OLE object high CVE related RTF_URL_MONIKER_RELATED

RTF contains a URL Moniker GUID in OLE object context, but no decoded remote target was confirmed. Treat as related OLE2Link attack-surface evidence rather than proof of CVE-2017-0199 exploitation.
\objupdate forces OLE activation high RTF_OBJUPDATE

RTF contains \objupdate — forces automatic OLE object instantiation when the document is opened, bypassing user interaction. Almost exclusively seen in Equation Editor exploit documents.
OLE object data medium RTF_OBJDATA

RTF contains 1 \objdata section(s) — embedded OLE objects
Embedded OLE object medium RTF_OBJEMB

RTF contains \objemb — 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 https://en.wikipedia.org/wiki/Australian_rules_football In RTF body
- https://en.wikipedia.org/wiki/Australian_Football_LeagueIn RTF body
- https://en.wikipedia.org/wiki/2002_Australian_Football_International_CupIn RTF body
- https://en.wikipedia.org/wiki/International_Australian_Football_CouncilIn RTF body
- https://en.wikipedia.org/wiki/Australian_Football_International_CupIn RTF body
- https://en.wikipedia.org/wiki/Australian_rules_football_in_AustraliaIn RTF body
- https://en.wikipedia.org/w/index.php?title=Australian_Football_International_Cup&action=edit&section=1In RTF body
- https://en.wikipedia.org/wiki/Ireland_national_Australian_rules_football_teamIn RTF body
- https://en.wikipedia.org/wiki/2011_Australian_Football_International_CupIn RTF body
- http://schemas.microsoft.com/office/word/2003/wordmlIn RTF body
- https://en.wikipedia.org/wiki/CompetitionIn RTF body
- https://en.wikipedia.org/wiki/AustraliaIn RTF body
- https://en.wikipedia.org/wiki/Grand_finalIn RTF body
- https://en.wikipedia.org/wiki/Curtain_raiser_(dramaIn RTF body
- https://en.wikipedia.org/wiki/AFL_New_ZealandIn RTF body
- https://en.wikipedia.org/wiki/CanadaIn RTF body
- https://en.wikipedia.org/wiki/DenmarkIn RTF body
- https://en.wikipedia.org/wiki/IrelandIn RTF body
- https://en.wikipedia.org/wiki/JapanIn RTF body
- https://en.wikipedia.org/wiki/NauruIn RTF body
- https://en.wikipedia.org/wiki/New_ZealandIn RTF body
- https://en.wikipedia.org/wiki/Papua_New_GuineaIn RTF body
- https://en.wikipedia.org/wiki/SamoaIn RTF body
- https://en.wikipedia.org/wiki/South_AfricaIn RTF body
- https://en.wikipedia.org/wiki/United_KingdomIn RTF body
- https://en.wikipedia.org/wiki/United_StatesIn RTF body
- https://en.wikipedia.org/wiki/SpainIn RTF body

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