RTF malware analysis — malicious · 500b6037ddb5efff

MALICIOUS

RTF

551.6 KB Created: 2019-12-22 23:50:00 First seen: 2020-05-14

MD5: 2123bf482c9c80cb1896ff9288ad7d60 SHA-1: ea02db9b92cbf1d243b502d130aa2dd6c98637d2 SHA-256: 500b6037ddb5efff0dd91f75b22ccce5b04d996c459d83d1f07fae8780b24e09

84 Risk Score

Heuristics 5

\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 3 \objdata section(s) — embedded OLE objects
Embedded OLE object medium RTF_OBJEMB

RTF contains \objemb — 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/2003/wordml In RTF body

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`objdata_00_off0000a0d0.bin`	rtf-objdata-decoded	RTF \objdata at offset 0xA0D0	254704 bytes
SHA-256: `245fa5337a7d5e7090e34af9183ee790c7ac6e3bb9602ed48173f58d8132110e`
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact entropy is 8.00, consistent with packed or encrypted content.
`objdata_01_off000866d6.bin`	rtf-objdata-decoded	RTF \objdata at offset 0x866D6	6847 bytes
SHA-256: `e41db3b920b97d35fee7cad90d8e442e95f33a22b8414d5819876e58889c49d7`
`objdata_02_off000866f0.bin`	rtf-objdata-decoded	RTF \objdata at offset 0x866F0	6843 bytes
SHA-256: `cbf708629437999ba26cf021c20424245fb880bd6c399adc3aa83dd2b149b130`

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