PDF malware analysis — malicious · cfd5570f596ce4a9

MALICIOUS

PDF

47.8 KB

MD5: af48063ecb275dc28a9bed53882912b6 SHA-1: 7106f83987e50a85d4ffdf8a3445322ea5ee9f35 SHA-256: cfd5570f596ce4a9902e0bf0b5b0a35f9615a69f0d8915d8da0802040e4706f9

98 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File

The PDF file contains embedded JavaScript that utilizes the Collab.getIcon method to trigger the CVE-2009-0927 vulnerability in Adobe Reader. The JavaScript is obfuscated and appears to decode further layers of malicious code, ultimately aiming to execute an exploit. The primary attack vector is the exploitation of this known vulnerability.

Heuristics 5

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)
ASCIIHexDecode filter (with exploit indicators) medium PDF_FILTER_HEX

Hex-encoding filter present alongside exploit delivery indicators — often used to hide payload or shellcode bytes
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_obj0008_000.js` `c2c85e2db3a0cdaa11f74834c1162ab85eb1a553ce646085bddb2d5c6689a41a`	pdf-javascript-stream	PDF /JS object 8 at offset 0x1D3	9635 bytes
`custom_b64_stage_000.js` `a00095976583df373dd67b91a41e67078397de14467c1eb8a9a6bc5366e337fc`	deobfuscated-js	custom Base64 decoded JavaScript layer 2 (PDF /JS object 8) at offset 0x8A7	1619 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 3 eval/decoder/string-building token(s).

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