PDF malware analysis — malicious · f0b8bb1253a57c54

MALICIOUS

PDF

11.8 KB

MD5: cf294fd2cd5c23d0cad4f970cddf5e4b SHA-1: 00dd0e7e4adeb5cea679c2e99fa337eb63d30e99 SHA-256: f0b8bb1253a57c54b371b183f5e80c02dbe77fa8bfc7100e1b5de8b10f1d221f

138 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.001 Malicious Link

The PDF file contains embedded JavaScript, identified by the CVE_2007_5659 heuristic which specifically targets the 'Collab.collectEmailInfo' JavaScript object used for exploitation. The embedded JavaScript streams, deobfuscated into 'legacy_pdfkit_stage_000.js' and 'legacy_pdfkit_stage_001.js', indicate a multi-stage attack. The primary intent appears to be exploiting a PDF vulnerability to download and execute further malicious content.

Heuristics 5

Collab.collectEmailInfo — CVE-2007-5659 critical CVE exact CVE_2007_5659

PDF JavaScript calls Collab.collectEmailInfo — CVE-2007-5659 is a buffer overflow in Adobe Reader triggered by a long argument or heap-sprayed message field passed to Collab.collectEmailInfo(). Part of a series of Acrobat JS API exploits. (identified after JavaScript deobfuscation)
ClamAV: Pdf.Exploit.Agent-36065 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-36065
JavaScript action low PDF_JAVASCRIPT

PDF contains a /JavaScript action. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
Embedded JS stream low PDF_JS

PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
Suspicious extracted artifact info 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 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj0007_000.js` `9c67560e8c63b720885d3efc1627b844b86a6ec08e99e5b65a22eae832045756`	pdf-javascript-stream	PDF /JS object 7 at offset 0x19C	431 bytes
`legacy_pdfkit_stage_000.js` `405bcfba9b5f986da8f03c6b3868173b403c45bd9c318bf9560e33f70faa6394`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x315	12007 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).
`legacy_pdfkit_stage_001.js` `c7ce729922855ad681817e6626e9f9cceefcd6805f58b4d69abc819b196cce76`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x315	4948 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 5 eval/decoder/string-building token(s).

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