RTF malware analysis — malicious · fcdc0c35be08f503

MALICIOUS

RTF

496.0 KB Created: 2018-07-13 13:08:00 First seen: 2021-02-23

MD5: 1025000169c8a8af780be4c204cd9b87 SHA-1: 7ec7826ead86b5a9f7ca2775f9414dec9db97767 SHA-256: fcdc0c35be08f5033a7414be8cd10ce23488156636934ee7cf1a4b261fc7f9cd

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 7 \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 7

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`objdata_00_off00003c2b.bin`	rtf-objdata-decoded	RTF \objdata at offset 0x3C2B	24635 bytes
SHA-256: `160eadfab9768c09edaf7ca974d37eb7063f2d1e07e9e9825dc7e2e99a39973f`
Detection ClamAV: Xls.Malware.Sload-7135989-0 Obfuscation or payload: unlikely
`objdata_01_off0001546d.bin`	rtf-objdata-decoded	RTF \objdata at offset 0x1546D	24635 bytes
SHA-256: `25941148389e97a39228f954d32b00f549e088844e535ad09416a479ca076e40`
Detection ClamAV: Xls.Malware.Sload-7135989-0 Obfuscation or payload: unlikely
`objdata_02_off00026caf.bin`	rtf-objdata-decoded	RTF \objdata at offset 0x26CAF	24635 bytes
SHA-256: `f88a3b481e39904b66ee34586efbf0bea9974f4c11b415a564507a8c2eea5e0d`
Detection ClamAV: Xls.Malware.Sload-7135989-0 Obfuscation or payload: unlikely
`objdata_03_off000384f1.bin`	rtf-objdata-decoded	RTF \objdata at offset 0x384F1	24635 bytes
SHA-256: `6c8f50e31244001098718f22887a5b2161c9423d8911a03428db5d9846f3e612`
Detection ClamAV: Xls.Malware.Sload-7135989-0 Obfuscation or payload: unlikely
`objdata_04_off00049d33.bin`	rtf-objdata-decoded	RTF \objdata at offset 0x49D33	24635 bytes
SHA-256: `decc05c1e994dac09c0ad4428a7be6072fa1c5a2d1b1de26d554934c7599af98`
Detection ClamAV: Xls.Malware.Sload-7135989-0 Obfuscation or payload: unlikely
`objdata_05_off0005c385.bin`	rtf-objdata-decoded	RTF \objdata at offset 0x5C385	24635 bytes
SHA-256: `3084dfe784202db5398f26958841e2713bb5b1fb09c023295ca2b193a3394ac7`
Detection ClamAV: Xls.Malware.Sload-7135989-0 Obfuscation or payload: unlikely
`objdata_06_off0006dbe6.bin`	rtf-objdata-decoded	RTF \objdata at offset 0x6DBE6	24635 bytes
SHA-256: `e91ef25503ce05bb06ef172bd8381f74c0cbfec4453d62535f98071868a05e61`
Detection ClamAV: Xls.Malware.Sload-7135989-0 Obfuscation or payload: unlikely

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