PDF malware analysis — malicious · 24d52ab54d082720

MALICIOUS

PDF

12.4 KB

MD5: e1646c915ec6327c5dadf0c0bded3538 SHA-1: e1c400f8ce57b8b556e3e9d56f27ad43370fda2f SHA-256: 24d52ab54d08272028d6f760aaf0e82e3fa2d9b18003c874f914e6954d58ccec

138 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF file contains embedded JavaScript, identified by multiple heuristic firings including 'PDF_JAVASCRIPT' and 'PDF_JS'. The critical 'CVE_2007_5659' heuristic indicates the exploitation of a known vulnerability (Collab.collectEmailInfo) to execute JavaScript. This script is likely responsible for downloading and executing a second-stage payload, as suggested by the presence of deobfuscated JavaScript files ('legacy_pdfkit_stage_000.js', 'legacy_pdfkit_stage_001.js') and the ClamAV detection signature 'Pdf.Exploit.Agent-36062'. The document body itself is heavily garbled, providing no direct clues to the lure.

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` `377a4f5026e84a6569e002d8ebd1e5427bb5312a6b5007fde7917e3164f7e2c6`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x2F5	12094 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).
`legacy_pdfkit_stage_001.js` `ca90463be2e3b5925dd4f01e72bed27fd34521a755a19dd52435f80f7bc29aca`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x2F5	4930 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.