PDF malware analysis — malicious · e0a2af123a3e1c7a

MALICIOUS

PDF

12.1 KB

MD5: ba68aba69dbc10e7bd871f5bcb33e4e8 SHA-1: 803e712ad540b01e1f9a25a04ad8225175887bf0 SHA-256: e0a2af123a3e1c7ab8025b4ec2ee091f3ceef075584ac6220dd69d9bc8ff5672

138 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF file contains embedded JavaScript, flagged by multiple heuristics including CVE-2007-5659 which specifically mentions JavaScript execution via the Collab.collectEmailInfo method. The extracted JavaScript files suggest a multi-stage process, typical of exploit kits designed to download and execute further malicious content. 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` `03386b93b7018d22bf022e5c84a2aadf43062b65489683e709fc10333d052992`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x2F5	11979 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).
`legacy_pdfkit_stage_001.js` `cf9a541ef33d6311856396bb2af2e521d1f49b878620e08f602110cee6f54bc2`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x2F5	4921 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 5 eval/decoder/string-building token(s).

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