PDF malware analysis — malicious · 48089ab85100583e

MALICIOUS

PDF

2.5 KB

MD5: 9e797a7fb3c7e168f3026474ff7d47aa SHA-1: 131740ac23c20b7a617cc6dc2d85f3256a3f6333 SHA-256: 48089ab85100583e6650b8787244e16382500de4f01c68c2ab0fedff89737e05

178 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.001 Malicious Link

The PDF file contains embedded JavaScript that leverages CVE-2009-0927 and CVE-2007-5659 vulnerabilities. The JavaScript is obfuscated and uses eval() to execute, indicating it is designed to download and run a secondary payload. The heuristics strongly suggest exploitation of these specific CVEs within the PDF structure.

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. (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)
eval() call high PDF_EVAL

eval() found — commonly used for obfuscated exploit execution (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
`legacy_pdfkit_stage_000.js` `e9ea9667fb78771e05f0b31f617abddef0b403120a01a49ea37055503bdf3428`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x187	4724 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 9 eval/decoder/string-building token(s). Carved artifact contains 1 long base64-like blob(s).

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