PDF malware analysis — malicious · f6809b1a54e04618

MALICIOUS

PDF

2.7 KB

MD5: 19e57eb41b9da2652d6313d0b27fe0b7 SHA-1: dec38b20fe783300dfb491cf42cc95928f88b728 SHA-256: f6809b1a54e04618607c833bfa796c78106b8a6e13dea034c643bf292732b6bd

138 Risk Score

Malware Insights

MITRE ATT&CK

T1204 Malicious Link T1059.001 PowerShell T1059.003 Windows Command Shell T1059.004 Python T1059.007 JavaScript

The PDF file contains embedded JavaScript that utilizes the Collab.getIcon method, indicating exploitation of CVE-2009-0927. The JavaScript stream is obfuscated and uses unescape(), suggesting an attempt to hide malicious code. The primary goal appears to be the execution of this script, which likely leads to the download and execution of a further stage payload.

Heuristics 6

Collab.getIcon — CVE-2009-0927 critical CVE exact CVE_2009_0927

PDF JavaScript calls Collab.getIcon — CVE-2009-0927 is a stack buffer overflow in Adobe Reader triggered by Collab.getIcon() with a crafted argument. Allows arbitrary code execution. (matched in decompressed stream)
unescape() call high PDF_UNESCAPE

unescape() found — often used to decode shellcode in PDF JS exploits (matched inside decoded stream)
ASCIIHexDecode filter (with exploit indicators) medium PDF_FILTER_HEX

Hex-encoding filter present alongside exploit delivery indicators — often used to hide payload or shellcode bytes
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_obj0006_000.js` `56bed5b34a24713ceb4bc73db0a1679ab46b1542eb37343602cbe21f07b2471c`	pdf-javascript-stream	PDF /JS object 6 at offset 0x12D	626 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 4 eval/decoder/string-building token(s).

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