PDF malware analysis — malicious · 8d06d4d0efc27489

MALICIOUS

PDF

12.5 KB

MD5: b419b946ddde64d8e3977e4d46a8ce88 SHA-1: 9a11bc9cfd43a5d4ff813bfdba9b6340531d50d5 SHA-256: 8d06d4d0efc2748934931ad2db77392ed25ef8b5b5f0bdeaac19241174f62f92

318 Risk Score

Malware Insights

MITRE ATT&CK

T1204 Malicious File T1059.001 PowerShell T1059.007 JavaScript

The PDF file exploits several known Adobe Reader vulnerabilities (CVE-2009-4324, CVE-2009-0927, CVE-2007-5659, CVE-2008-2992) through embedded JavaScript. Static analysis indicates this JavaScript is obfuscated and likely serves as a loader for a second-stage payload. The ClamAV detection further confirms its malicious nature as Pdf.Exploit.Agent-36291.

Heuristics 8

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. (identified after JavaScript deobfuscation)
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. (identified after JavaScript deobfuscation)
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)
util.printf — CVE-2008-2992 critical CVE exact CVE_2008_2992

PDF JavaScript calls util.printf() — CVE-2008-2992 is a stack buffer overflow in Adobe Reader triggered by a long format-specifier argument. Widely exploited in the wild after disclosure. (identified after JavaScript deobfuscation)
ClamAV: Pdf.Exploit.Agent-36291 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-36291
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_obj0076_000.js` `c2d84e761b6709e7a9c19a519038aaa5f9a9325324461dcc7b383aae56cf0585`	pdf-javascript-stream	PDF /JS object 76 at offset 0x369	11705 bytes
`legacy_pdfkit_stage_000.js` `6e0bc28b71de45e42459475140a945835bc714f70236d8a05a8f874e27f4d1a3`	deobfuscated-js	string-index array decoded JavaScript at offset 0x369	3858 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 11 eval/decoder/string-building token(s). Carved artifact contains 1 long base64-like blob(s).

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