RTF malware analysis — malicious · 907d3ce8d28a602c

MALICIOUS

RTF

288.0 KB Created: 2018-07-13 12:29:00 First seen: 2021-02-23

MD5: 260950489644e6a7e1db48d1145b42c1 SHA-1: ba86d4073895a07dd648e9c2292da90473ca3473 SHA-256: 907d3ce8d28a602ce9cdfbb5d1ffb73ed4addbfffb6c8ad66881ee96b8627888

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 4 \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 4

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`objdata_00_off00003c2d.bin`	rtf-objdata-decoded	RTF \objdata at offset 0x3C2D	24635 bytes
SHA-256: `830e15eb404de97c3e416311b7f99b44e3170c78bfeed72aedd402486c41aa5b`
Detection ClamAV: Xls.Malware.Sload-7135989-0 Obfuscation or payload: unlikely
`objdata_01_off0001546f.bin`	rtf-objdata-decoded	RTF \objdata at offset 0x1546F	24635 bytes
SHA-256: `edfd5632fc4302045a3c292d8ad4df567749a5fcc3694d5244e1b9ccad913683`
Detection ClamAV: Xls.Malware.Sload-7135989-0 Obfuscation or payload: unlikely
`objdata_02_off00026cb1.bin`	rtf-objdata-decoded	RTF \objdata at offset 0x26CB1	24635 bytes
SHA-256: `183919ed591a064073059658f621d9f372d8059736784a0f478e8ac78e545231`
Detection ClamAV: Xls.Malware.Sload-7135989-0 Obfuscation or payload: unlikely
`objdata_03_off000384f3.bin`	rtf-objdata-decoded	RTF \objdata at offset 0x384F3	24635 bytes
SHA-256: `0da0c31b58ec9cc67249660ce8dee53cfefcaa826214a21cf2bf4cebed5d8154`
Detection ClamAV: Xls.Malware.Sload-7135989-0 Obfuscation or payload: unlikely

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