PDF malware analysis — malicious · adc7d5c0a2ba597c

MALICIOUS

PDF

12.4 KB

MD5: e7dcc049020ee4ac44bc8edabc03fa3e SHA-1: 385c1f04c14bb860b46a603ca528b1f9c172afaa SHA-256: adc7d5c0a2ba597c9ab806afc2226d3323717ecdcb1d116456f2a4e9112e0274

138 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF file contains embedded JavaScript that exploits CVE-2007-5659, specifically targeting the Collab.collectEmailInfo function. The heuristics indicate that the JavaScript is deobfuscated and likely intended to download and execute a secondary payload, as suggested by the extracted JavaScript files. The ClamAV detection further confirms its malicious nature.

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` `4fd14f3bdd6414fa0ad6cda64a80322e7f77ed0723598fead97e2b493ac98cca`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x2F5	12058 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).
`legacy_pdfkit_stage_001.js` `b6f18cc0102d8ed2d5c708c7da8cc1a67828b8fbae8b10cf44a6a4b2ab15d181`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x2F5	4956 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 5 eval/decoder/string-building token(s).

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