Malicious RTF — malware analysis report

Static analysis result for SHA-256 84272f3db52c7bb9…

MALICIOUS

RTF

576.0 KB Created: 2018-07-13 12:29:00 First seen: 2021-02-23
MD5: e2661327475800ec74823601cb2ee6d5 SHA-1: 81a64e6ea587209bffb37195a8902fc4274fb455 SHA-256: 84272f3db52c7bb9ee53e93405dfb329bf67db0cd171b7f1d28a41b741584271
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 8 \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 8

Files carved from inside the sample during analysis.

FilenameKindSourceSize
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
objdata_04_off00049d35.bin rtf-objdata-decoded RTF \objdata at offset 0x49D35 24635 bytes
SHA-256: 3fddf621dca9f3f2059a64addd693a757a8b44d54a2d514f8cd53b9bc6cd5f75
Detection
ClamAV: Xls.Malware.Sload-7135989-0
Obfuscation or payload: unlikely
objdata_05_off0005c38e.bin rtf-objdata-decoded RTF \objdata at offset 0x5C38E 24635 bytes
SHA-256: 34794d52cf0a93e1b49e98ae919bd7331484ec3f6398fa461255b8d126f98645
Detection
ClamAV: Xls.Malware.Sload-7135989-0
Obfuscation or payload: unlikely
objdata_06_off0006dbef.bin rtf-objdata-decoded RTF \objdata at offset 0x6DBEF 24635 bytes
SHA-256: 31b748e8e0b1c01bfea80f56d759342f8a2fa2538ff3cb81b07f83ddfad6b051
Detection
ClamAV: Xls.Malware.Sload-7135989-0
Obfuscation or payload: unlikely
objdata_07_off0007f452.bin rtf-objdata-decoded RTF \objdata at offset 0x7F452 24635 bytes
SHA-256: 9683a166a0467bc1686806995663c03ee466c5a45ba720e739140dedbd3e0baa
Detection
ClamAV: Xls.Malware.Sload-7135989-0
Obfuscation or payload: unlikely