Rtf.Dropper.Agent-7481409-0 RTF malware analysis — malicious · c51658ed15a09e9d

MALICIOUS

RTF

704.3 KB Created: 2019-12-17 23:34:00 First seen: 2020-06-01

MD5: 0d28743f8cbae195a81e437720866965 SHA-1: dba2fa756263549948fac6935911c3e0d4d1fa1f SHA-256: c51658ed15a09e9d8759c9fbf24665d6f0101a19a2a147e06d58571d05266d0a

202 Risk Score

Malware Insights

Rtf.Dropper.Agent-7481409-0 · confidence 95%

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The RTF file contains embedded OLE objects and utilizes RTF-specific object manipulation techniques, including \objupdate, to trigger activation. Heuristics indicate the presence of suspicious extracted artifacts, including shellcode candidates, strongly suggesting the file is a dropper. The ClamAV detection name further supports this assessment.

Heuristics 7

ClamAV: Rtf.Dropper.Agent-7481409-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Rtf.Dropper.Agent-7481409-0
\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.
Package object class high RTF_OBJCLASS_PACKAGE

OLE Package object — can wrap arbitrary files
OLE object data medium RTF_OBJDATA

RTF contains 2 \objdata section(s) — embedded OLE objects
Embedded OLE object medium RTF_OBJEMB

RTF contains \objemb — embedded OLE object
Suspicious extracted artifact medium EXTRACTED_FILE_STATIC_TRIAGE

One 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.
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 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`objdata_00_off0001d8ce.bin`	rtf-objdata-decoded	RTF \objdata at offset 0x1D8CE	269555 bytes
SHA-256: `973d51860e99aa8e09683f4d3946e64487f3f271d53e5a3338ef70f11394f89e`
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact entropy is 7.79, consistent with packed or encrypted content.
`objdata_01_off000aca55.bin`	rtf-objdata-decoded	RTF \objdata at offset 0xACA55	6843 bytes
SHA-256: `62c91223dd5af8a41d83679bfd78dc812ed023d4b14d0ff10cdf2f847a4c288e`
Detection ClamAV: No threats found Obfuscation or payload: likely Static shellcode analysis found candidate code region(s). Indicators: SC_PEB_ACCESS

Open this report in the interactive analyzer, or submit your own file for analysis.