PDF malware analysis — malicious · ba1e29ff251ec9c5

MALICIOUS

PDF

12.6 KB

MD5: b0d7ed44521a3a8c5b04ad1e6efd63d3 SHA-1: ddf9579988cd662979cadfc49d0eac915166ccf7 SHA-256: ba1e29ff251ec9c52cf1678b4afcb9df90ddf5f2c962f26988cb75130476e87c

138 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF file contains embedded JavaScript, identified by multiple heuristics and ClamAV detection as malicious (Pdf.Exploit.Agent-36062). Specifically, the CVE-2007-5659 heuristic indicates the exploitation of a known PDF vulnerability using JavaScript. The extracted JavaScript files, legacy_pdfkit_stage_000.js and legacy_pdfkit_stage_001.js, likely contain the payload or further stages of the attack, such as downloading and executing additional malware.

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-36062 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-36062
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` `068944f8c011a88ab770b45c6de142b9305a1f515d410204d5eadd9ac2b5bfb3`	pdf-javascript-stream	PDF /JS object 7 at offset 0x19B	373 bytes
`legacy_pdfkit_stage_000.js` `5b65be12671ada617c1333765de1b764040d19be9184d86f1bd42d1fb28dda66`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x2F5	12356 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).
`legacy_pdfkit_stage_001.js` `2d3da9c54e7d0032d90f3673345ca848b617faee558f40e366024b5966bf6ae8`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x2F5	5050 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 5 eval/decoder/string-building token(s).

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