RTF malware analysis — malicious · e8e52e433d67088c

MALICIOUS

RTF

427.9 KB Created: 2019-01-07 23:54:00

MD5: debf2f1e560cbb955561cac3bc18cda7 SHA-1: d52b5edbadd87da8fc2c4415b22918ae78359ba6 SHA-256: e8e52e433d67088cf5334f85c1b64e7b8fbaa2ceccb82b1db6e0c80cd79641f2

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 Malicious File

The RTF document contains multiple OLE objects, with heuristics indicating the use of \objupdate to force activation. This suggests the file is designed to exploit vulnerabilities through embedded objects, likely for initial access. The specific OLE object class identified as 'Package' further supports this. No scripts were extracted from this sample.

Heuristics 4

\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 5 \objdata section(s) — embedded OLE objects
Embedded OLE object medium RTF_OBJEMB

RTF contains \objemb — embedded OLE object

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`objdata_00_off00000a58.bin` `208f8c5d41a7cb3bd04e437b2d70193059820917eef4b3d934d3a3d3e62c75dd`	rtf-objdata-decoded	RTF \objdata at offset 0xA58	35899 bytes

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