PDF malware analysis — malicious · 9e575f2a058f0a5e

MALICIOUS

PDF

1.2 KB

MD5: d953f37056531f9ff496c9d30b5b2dd2 SHA-1: 9f03d9b507064868f86db75b79cffe1a60aae17f SHA-256: 9e575f2a058f0a5e9bcaca0de9ed81e41d7f17c84700314921eb4797ae4f8fb1

158 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 JavaScript/JScript T1204.002 Malicious File

The PDF file contains embedded JavaScript triggered by the OpenAction, which utilizes the unescape function and specifically targets the Collab.getIcon method to exploit CVE-2009-0927. This exploit is designed to download and execute a second-stage payload. The presence of obfuscated JavaScript further supports this malicious intent.

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)
OpenAction trigger high PDF_OPENACTION

PDF has an /OpenAction — code runs automatically when opened
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_obj0002_000.js` `10d749e1e545e46369bffee157660b8fc32bc0ef60d2a9bd33ee61d328353049`	pdf-javascript-stream	PDF /JS object 2 at offset 0x63	2262 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 4 eval/decoder/string-building token(s).

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