PDF malware analysis — malicious · c8008414bda7a965

MALICIOUS

PDF

6.6 KB

MD5: 37191b0e6157f0a3df4d5e6282958686 SHA-1: b63f3cca24650b2e9b1bc2e1f02637367d992f86 SHA-256: c8008414bda7a965294bc01cea59d9b4c131655f7636c79a072e4dedd0364f98

178 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF file contains embedded JavaScript, which is obfuscated and utilizes an unescape function. Critical heuristics indicate the exploitation of CVE-2009-0927 via the Collab.getIcon method. This suggests the document is designed to exploit a vulnerability in the PDF reader to execute arbitrary code, likely for downloading and executing a second-stage payload.

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. (matched in decompressed stream)
ClamAV: Heuristics.PDF.ObfuscatedNameObject critical CLAMAV_DETECTION

ClamAV detected this file as malware: Heuristics.PDF.ObfuscatedNameObject
unescape() call high PDF_UNESCAPE

unescape() found — often used to decode shellcode in PDF JS exploits (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
`javascript_obj0006_000.js` `fa630cb85e55707edcc2e52d19cefaf0aa56e81d0fd2adf2821292c24a060941`	pdf-javascript-stream	PDF /JS object 6 at offset 0x191	5544 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 4 eval/decoder/string-building token(s). Carved artifact contains 1 long base64-like blob(s).

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