PDF malware analysis — malicious · 89d50b382455bccf

MALICIOUS

PDF

3.4 KB

MD5: fbb7553052a8267ee38400cd31c31b15 SHA-1: ce2dd3ac9a8db22020098a7cb0c965fec0c807ea SHA-256: 89d50b382455bccf75ebc9906e2781a46a62f8b2b1d57e276150d7c2849da72c

296 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

This PDF file exhibits multiple critical heuristic firings indicating exploitation of CVE-2009-0927 and CVE-2007-5659. It contains embedded JavaScript, which is further obfuscated and decoded, suggesting an attempt to download and execute a secondary payload. The ClamAV detection of 'Pdf.Dropper.Agent-7280191-0' reinforces the malicious nature of this dropper.

Heuristics 8

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)
ClamAV: Pdf.Dropper.Agent-7280191-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Dropper.Agent-7280191-0
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 medium 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` `b4b27978f2d779370e06ca0b1ca34cab7d9b0cc61209f384406cd6151d2d3197`	pdf-javascript-stream	PDF /JS object 4 at offset 0x249	23062 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 2 eval/decoder/string-building token(s). Carved artifact contains 3 long hex-escaped blob(s).
`numeric_charcode_stage_000.js` `de875b577c3c715f2db08e77fafc9bf4d866014c77bc5b8052eed52355ddee3e`	deobfuscated-js	numeric char-code string decoded JavaScript at offset 0x3F2	6731 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 eval/decoder/string-building token(s).

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