PDF malware analysis — malicious · 96caafe97e6c6240

MALICIOUS

PDF

3.6 KB

MD5: 3c25379dd01ab7b69288b0bb48244677 SHA-1: 716239448a192385b92734d0b43cf98d788b950f SHA-256: 96caafe97e6c6240f2ee42c4b5202f13c229dbded6b08d3382f47b3f847e4c06

376 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.001 Malicious Link

This PDF document exploits multiple known vulnerabilities, including CVE-2009-0927, CVE-2007-5659, and CVE-2008-2992, by leveraging embedded and obfuscated JavaScript. The JavaScript streams, particularly 'numeric_charcode_stage_000.js', utilize eval() and unescape() functions, indicating an attempt to hide malicious code execution. The primary intent appears to be the exploitation of these PDF reader flaws to achieve arbitrary code execution.

Heuristics 9

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: Heuristics.PDF.ObfuscatedNameObject critical CLAMAV_DETECTION

ClamAV detected this file as malware: Heuristics.PDF.ObfuscatedNameObject
eval() call high PDF_EVAL

eval() found — commonly used for obfuscated exploit execution (matched inside decoded stream)
unescape() call high PDF_UNESCAPE

unescape() found — often used to decode shellcode in PDF JS exploits (matched inside decoded stream)
Suspicious extracted artifact high 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.
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.

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj0004_000.js` `28c7a9bd3406108606f704f6ef2e64e0bbfa72c2d9076aaa81e8d768c4b089d5`	pdf-javascript-stream	PDF /JS object 4 at offset 0x206	29311 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 4 eval/decoder/string-building token(s).
`numeric_charcode_stage_000.js` `4a555e2d2c9372fae1b8ffe26b598740b6fc418094e8dd6cef3a3b2209851b59`	deobfuscated-js	numeric char-code string decoded JavaScript at offset 0x26E	6577 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 10 eval/decoder/string-building token(s).

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