PDF malware analysis — malicious · a0eb61eca1f33083

MALICIOUS

PDF

1.4 KB

MD5: 3c40a10d7c9dd51e1fb0ff22e91d6079 SHA-1: 61ef3cbca86fbae9ac2bff05c20ddc880d70ef81 SHA-256: a0eb61eca1f3308361e30a71f6a85451d8e40c3300ae78b5ab19e3163fa0dc57

118 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File: Malicious File

The PDF file contains embedded JavaScript, indicated by multiple heuristic firings. Specifically, the 'CVE_2009_4324' heuristic firing points to the exploitation of a known vulnerability in Adobe Reader's media handling. The embedded JavaScript, likely obfuscated, is designed to be executed upon opening the PDF, leading to the exploitation of this vulnerability. This suggests the PDF is a malicious document intended to compromise the user's system.

Heuristics 5

media.newPlayer — CVE-2009-4324 critical CVE exact CVE_2009_4324

PDF JavaScript calls media.newPlayer — CVE-2009-4324 is a use-after-free in Adobe Reader's multimedia plugin triggered by media.newPlayer(). Actively exploited as a zero-day in December 2009. (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 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj111111_000.js` `67ebc6895f03301fbee0d0a65ad39d6e042409a78060041666540f2a0bfd2e7c`	pdf-javascript-stream	PDF /JS object 111111 at offset 0x160	1288 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 eval/decoder/string-building token(s). Carved artifact contains 1 long base64-like blob(s).
`javascript_obj111112_001.js` `8f88061c6621b9ac145f22c25a4b096b591fe1c30f4421755bd35e02e9388e5b`	pdf-javascript-stream	PDF /JS object 111112 at offset 0x495	278 bytes

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