PDF malware analysis — malicious · 34b5ae9b6ae4cf5e

MALICIOUS

PDF

54.0 KB

MD5: 1e677d2c2858aa17ee65f664db300cb9 SHA-1: 22005f360217bde273733f9cff08dcc0c8b0bc03 SHA-256: 34b5ae9b6ae4cf5e73bb661cdcf55afa47ed1aad09a6bab8af337f3cc521bb69

178 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.001 Malicious Link T1204.002 Malicious File

The PDF file contains embedded JavaScript, indicated by multiple heuristic firings including PDF_JAVASCRIPT and PDF_JS. The critical CVE_2009_0927 heuristic and ClamAV detection confirm the exploitation of this specific vulnerability. The embedded JavaScript likely attempts to download and execute a second-stage payload, although the exact mechanism is obfuscated. The document body text appears to be garbage data, suggesting the primary purpose is exploit delivery rather than social engineering.

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.
ClamAV: Pdf.Exploit.CVE_2009_0927-1 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.CVE_2009_0927-1
unescape() call high PDF_UNESCAPE

unescape() found — often used to decode shellcode in PDF JS exploits
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_obj0007_000.js` `f16d73bbf0b7b0ce7c78c67af4c99bdc57e6980ee7e37d8f973d83a9963dc191`	pdf-javascript-stream	PDF /JS object 7 at offset 0x297	54300 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 5 eval/decoder/string-building token(s).
`javascript_obj0007_001.js` `9dd47af3dc6cb474e48d0a906cc68852a12e643455e3d5b80e62f0972714ba4b`	pdf-javascript-stream	PDF /JS object 7 at offset 0x297	52434 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 eval/decoder/string-building token(s).

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