PDF malware analysis — malicious · baeb10fcd510eff5

MALICIOUS

PDF

12.6 KB

MD5: 012aa512dabdce4041447ca15d7498b1 SHA-1: 809db55e2d518a9b9596290abb03c4c12a8168fc SHA-256: baeb10fcd510eff53d6734ddf76a05d058f2f1b2bcaf6edb6dda79ab4c55cf4e

138 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 JavaScript T1204.001 Malicious Link

The file is a PDF containing embedded JavaScript, identified by multiple heuristics including CVE-2007-5659, which is known to exploit Adobe Reader vulnerabilities. The embedded JavaScript streams, deobfuscated into 'legacy_pdfkit_stage_000.js' and 'legacy_pdfkit_stage_001.js', are indicative of a multi-stage attack. The primary function of these scripts is likely to download and execute a secondary payload, although the exact nature of the payload is not discernible from the provided evidence.

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` `d178401708f7cef4990d4339927ffbfc0dce72786ed824c43816027f1a7de9ae`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x2F5	12321 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).
`legacy_pdfkit_stage_001.js` `a16b8390b58574ceac474aea6fa90facc43249b03b62f87508f0f8122a2aeb9a`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x2F5	5134 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 5 eval/decoder/string-building token(s).

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