RTF malware analysis — malicious · 52ddd1caf55f8b94

MALICIOUS

RTF

460.0 KB Authoring application: Msftedit 5.41.21.2500 First seen: 2015-09-19

MD5: 13db118cd8d5cc3c20c71b31024d6210 SHA-1: 51b96c010d260a4b2db3f39ec2d692a6b8aa5da2 SHA-256: 52ddd1caf55f8b942ff04d2b9457963f3564007d8cb708486dace076bc522311

160 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The RTF file contains embedded OLE objects, including a package object and PE header in hex data, indicating a malicious payload. The document body prompts the user to click an image to view a receipt, a common lure for social engineering. The extracted artifact 'objdata_00_off0000012f.bin' is likely the embedded malicious executable.

Heuristics 5

PE header (with DOS stub) in hex data critical RTF_MZ_HEX

Hex-encoded PE (MZ + DOS stub) found inside RTF — likely an embedded executable payload
Package object class high RTF_OBJCLASS_PACKAGE

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

RTF contains 1 \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.

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`objdata_00_off0000012f.bin`	rtf-objdata-decoded	RTF \objdata at offset 0x12F	225660 bytes
SHA-256: `d115830154127fa34fd3b295e98d202c4478398a1b81c2c2e2bc4d74bbd5e9e7`
Detection ClamAV: No threats found Obfuscation or payload: likely Static shellcode analysis found candidate code region(s). Indicators: NOP sled

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