PDF malware analysis — malicious · a972395a1e79b2ab

MALICIOUS

PDF

12.5 KB

MD5: d184e619f9d64f24c776a97c20682c41 SHA-1: 470c213bd0a6a26008ecd230fdf3ebbd15af60fe SHA-256: a972395a1e79b2ab946ed0302625422011c1962adc2251da5ef45ddea07d8de9

138 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.001 Malicious Link

The PDF file contains embedded JavaScript, identified as a critical exploit targeting CVE-2007-5659 via the 'collab.collectEmailInfo' method. This indicates the file is designed to exploit a known vulnerability in PDF readers to execute malicious code. The deobfuscated JavaScript streams suggest a multi-stage loading process, likely to download and execute 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-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` `58baebe75094e8c8df22fc37027cdd0f1356a97425bc9269920238721f1e1170`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x2F5	12553 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).
`legacy_pdfkit_stage_001.js` `1e846e48090cc5536b7f5c99e15ffcda4a4de41c30d9cfd0269e0a60e7d89569`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x2F5	5110 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 5 eval/decoder/string-building token(s).

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