RTF malware analysis — malicious · 39e54f53b8ac334d

MALICIOUS

RTF

416.0 KB Created: 2018-07-13 13:18:00 First seen: 2021-02-23

MD5: 55321159394c47eee896ba0668abd1c2 SHA-1: a816ae120296926397d0e89c792b50085578b3fd SHA-256: 39e54f53b8ac334d46b014c94b486db0d7ecdcf327f3bebc2308d42542889a6f

242 Risk Score

Heuristics 6

Composite Moniker in RTF OLE object high CVE related RTF_COMPOSITE_MONIKER_RELATED

RTF contains Composite Moniker CLSID in OLE object context, but no nearby scriptlet/SCT payload was confirmed. Treat as related moniker attack-surface evidence rather than proof of CVE-2017-8570 exploitation.
ClamAV: Xls.Malware.Sload-7135989-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Xls.Malware.Sload-7135989-0
\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 6 \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 http://schemas.microsoft.com/office/word/2003/wordml In RTF body

Extracted artifacts 6

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`objdata_00_off00003c9b.bin`	rtf-objdata-decoded	RTF \objdata at offset 0x3C9B	24635 bytes
SHA-256: `d92825d9c65e7a9308658f93cd30b8ac4d2c0beffe8f322020fa446ef92ea213`
Detection ClamAV: Xls.Malware.Sload-7135989-0 Obfuscation or payload: unlikely
`objdata_01_off000154e4.bin`	rtf-objdata-decoded	RTF \objdata at offset 0x154E4	24635 bytes
SHA-256: `b7ce3540b1c654776b61019800c39085ab9e5d1ce797430d7a36dd1f0db98d35`
Detection ClamAV: Xls.Malware.Sload-7135989-0 Obfuscation or payload: unlikely
`objdata_02_off00026d2d.bin`	rtf-objdata-decoded	RTF \objdata at offset 0x26D2D	24635 bytes
SHA-256: `53c5170a1f9d5da54a5b4512271e98cc4867248432b583c8b3e230daf72f3a42`
Detection ClamAV: Xls.Malware.Sload-7135989-0 Obfuscation or payload: unlikely
`objdata_03_off00038576.bin`	rtf-objdata-decoded	RTF \objdata at offset 0x38576	24635 bytes
SHA-256: `e6b6a3bc898317b3df25f8506416366e83ef8af6abae40ee2ec3f45dd0ba591d`
Detection ClamAV: Xls.Malware.Sload-7135989-0 Obfuscation or payload: unlikely
`objdata_04_off00049dbf.bin`	rtf-objdata-decoded	RTF \objdata at offset 0x49DBF	24635 bytes
SHA-256: `e5e5674d1b47c4cfc3847825c9a0e8674544a28ad3ff45c1cc59635e34be60ad`
Detection ClamAV: Xls.Malware.Sload-7135989-0 Obfuscation or payload: unlikely
`objdata_05_off0005c418.bin`	rtf-objdata-decoded	RTF \objdata at offset 0x5C418	23862 bytes
SHA-256: `7cad86c18c4b733b5c1e2e2a8568aa0d0fddbcd6402fcf54042d5187c058d655`
Detection ClamAV: Xls.Malware.Sload-7135989-0 Obfuscation or payload: unlikely

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