PDF malware analysis — malicious · 2a448c9cd62fa0eb

MALICIOUS

PDF

12.5 KB

MD5: e2f9dc6c4e668ded23d6c0b30f6ac61d SHA-1: 2662f8e890e88d1e5db0f1b4139f70a2935f282a SHA-256: 2a448c9cd62fa0eb61be32cbb8efa95b37c14e963b2888bd21f2c6452f12ce92

320 Risk Score

Malware Insights

MITRE ATT&CK

T1204 Malicious Link T1204.001 Malicious Link: Malicious Link T1059.001 Command and Scripting Interpreter: PowerShell T1059 Command and Scripting Interpreter T1566 Phishing T1566.001 Phishing: Spearphishing Attachment

The PDF file contains embedded and obfuscated JavaScript that exploits multiple Adobe Reader vulnerabilities, including CVE-2009-4324, CVE-2009-0927, CVE-2007-5659, and CVE-2008-2992. This JavaScript is designed to download and execute a second-stage payload, as indicated by the ClamAV detection of Js.Exploit.HTML-28. The primary attack vector is leveraging these known exploits to compromise the user's system.

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: Js.Exploit.HTML-28 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Js.Exploit.HTML-28
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` `1404a9b3346aa1e9950ce0541663a4da3fbbb235dee57e466791574a18d569cc`	pdf-javascript-stream	PDF /JS object 76 at offset 0x2C2	11925 bytes
`split_char_table_stage_000.js` `d6accdfe28aa264a641b12b2477a52858680df25b23ef5b4d348e247c31686a9`	deobfuscated-js	split character-table join decoded JavaScript at offset 0x2D1	3936 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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