PDF malware analysis — malicious · 29e1cd6767d963a0

MALICIOUS

PDF

12.0 KB

MD5: ab34956f24e509ee55284640a670e807 SHA-1: c11e1e4267ec907a725749cd8eb25538ea1e71a4 SHA-256: 29e1cd6767d963a06f59061b336de09d9005306b99fd0a2fe402a34a86e98cd7

138 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 JavaScript T1204.001 Malicious Link T1204.002 Malicious File

The critical heuristic CVE_2007_5659 indicates the exploitation of a known vulnerability in Adobe Reader via embedded JavaScript. The presence of multiple extracted JavaScript files, including 'legacy_pdfkit_stage_000.js' and 'legacy_pdfkit_stage_001.js', suggests a multi-stage attack. The ClamAV detection 'Pdf.Exploit.Agent-36065' further confirms the malicious nature of the PDF. The embedded JavaScript is likely responsible for downloading and executing a secondary payload.

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` `714e5c7487ae567e9edc774cc3ed85f138b7c61e971c10eb6f993830c2256d5a`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x315	12237 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).
`legacy_pdfkit_stage_001.js` `ec0c97a9d3e39c9336a016d5989af6d2bcb43ed0f49adedca2740ec2f083430d`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x315	5090 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 5 eval/decoder/string-building token(s).

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