PDF malware analysis — malicious · d73764074f1eb6b9

MALICIOUS

PDF

12.4 KB

MD5: d8a16ff80cbe5afb61df4ff3031fcee6 SHA-1: ba68fa498f37a29dc10d59da422321c20376e65a SHA-256: d73764074f1eb6b9af1c1b99ccf7e1d7bc1fd961bdef3a872cd9005f6bd9c31d

138 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.001 Malicious Link

The file is a PDF containing embedded JavaScript, identified as malicious by ClamAV (Pdf.Exploit.Agent-36062). Heuristics indicate the exploitation of CVE-2007-5659 via JavaScript actions. The deobfuscated JavaScript files 'legacy_pdfkit_stage_000.js' and 'legacy_pdfkit_stage_001.js' were extracted, suggesting a multi-stage download and execution process. The exact payload and delivery mechanism are not fully discernible from the provided evidence, but the intent is clearly malicious exploitation.

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` `5d42e7cd0c8ef9a3184decc7c96b32a1b15e39f786bf418c7e6be75427e2124a`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x2F5	12047 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).
`legacy_pdfkit_stage_001.js` `b59c4f50bb3fb38fe57a1d826447a45cb7c7e69cb2dbad4596785a00b850dd6d`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x2F5	5017 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.