MALICIOUS
260
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The RTF file contains an embedded OLE object which is identified as a PE executable by ClamAV. The presence of RTF_MZ_HEX and RTF_OBJCLASS_PACKAGE heuristics further indicates a malicious executable embedded within the document. This suggests the file is likely a malicious attachment designed to trick the user into executing a payload.
Heuristics 6
-
PE header (with DOS stub) in hex data critical RTF_MZ_HEXHex-encoded PE (MZ + DOS stub) found inside RTF — likely an embedded executable payload
-
ClamAV: Win.Trojan.Koobface-884 critical CLAMAV_DETECTIONClamAV detected this file as malware: Win.Trojan.Koobface-884
-
ClamAV detection on extracted artifact critical EXTRACTED_FILE_CLAMAVClamAV flagged at least one file extracted from inside this sample. Even when the wrapping document carries no AV detection of its own, a hit on the carved artifact is a strong indicator the sample is a delivery vehicle.
-
Package object class high RTF_OBJCLASS_PACKAGEOLE Package object — can wrap arbitrary files
-
OLE object data medium RTF_OBJDATARTF contains 1 \objdata section(s) — embedded OLE objects
-
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_off000000cf.bin9a6511a15601a990c4ebf6b3e2d848dc2619aa332fe78cdb2cb42a960a29d789 |
rtf-objdata-decoded | RTF \objdata at offset 0xCF | 38703 bytes |
|
Detection
ClamAV:
Win.Trojan.Koobface-884
Obfuscation or payload:
unlikely
|
|||
Open this report in the interactive analyzer, or submit your own file for analysis.