PDF malware analysis — malicious · c04cf3396be4242b

MALICIOUS

PDF

5.2 KB Created: 2002-03-27 12:02:13 Authoring application: Aladdin Ghostscript 5.10

MD5: e95f12a70a49bdb934cec4d276b81015 SHA-1: febcf35bccd6d0088042e9986e5c6511199f54cd SHA-256: c04cf3396be4242bc222e107ab7faa28d84c084f329f4fda45f811d1a439e340

120 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF file contains embedded JavaScript, indicated by the PDF_JAVASCRIPT and PDF_JS heuristics. The critical CVE_2007_5659 heuristic firing points to the use of the Collab.collectEmailInfo function, a known method for exploiting vulnerabilities in PDF readers. The unescape() call further suggests obfuscation or exploitation of JavaScript. The extracted artifact 'javascript_obj0011_000.js' is likely the payload. The document body is unreadable, but the technical indicators strongly suggest an exploit attempt.

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. (matched in decompressed stream)
unescape() call high PDF_UNESCAPE

unescape() found — often used to decode shellcode in PDF JS exploits (matched inside decoded stream)
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 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj0011_000.js` `a0016ef7afee4acb9215119772468b846a26bc7be52c68f0f57b975269eeabf1`	pdf-javascript-stream	PDF /JS object 11 at offset 0xB8B	1704 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 4 eval/decoder/string-building token(s).

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