PDF malware analysis — malicious · aeed9cee3fdf6340

MALICIOUS

PDF

12.5 KB

MD5: dc8e49f38aaa51922543da0aa4e1ee48 SHA-1: af100b2ac42dc46fe0d1da6f57ee7a57ff56bd2e SHA-256: aeed9cee3fdf634001a0889c9f2884680ca31db0f1de41f5eca39904c9320a0c

138 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 JavaScript T1204.002 Malicious File

The critical heuristic CVE_2007_5659 indicates the exploitation of a PDF vulnerability using JavaScript. The embedded JavaScript streams, identified as 'legacy_pdfkit_stage_000.js' and 'legacy_pdfkit_stage_001.js', are likely responsible for the malicious execution. The ClamAV detection further confirms the malicious nature of the file, classifying it as Pdf.Exploit.Agent-36062. The primary attack vector appears to be the exploitation of a PDF reader vulnerability to run obfuscated JavaScript, which in turn likely downloads and executes 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-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` `891bbf94254c773874e27be7399b8be21c23a2a7644cf6bc2ef738b3fc25a664`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x2F5	12205 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).
`legacy_pdfkit_stage_001.js` `ff26a45c62b442ea9e58e4b8bbe575bcab5be2903a656d72b101c6c960fdb123`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x2F5	5029 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 5 eval/decoder/string-building token(s).

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