PDF malware analysis — malicious · 7c9c21b0507fe686

MALICIOUS

PDF

1.5 KB

MD5: b7cc908647d2e0d41eff2ad055013861 SHA-1: 99eef808bc4b00f6ca6bc35d07ee4755aa36ca87 SHA-256: 7c9c21b0507fe686345ddbc2d74af034b6a8205c5333fd86b155e4120618fbd0

218 Risk Score

Malware Insights

MITRE ATT&CK

T1204 Malicious Link T1059.001 PowerShell T1059.007 JavaScript

This PDF file contains embedded JavaScript that is triggered automatically when the document is opened, leveraging the CVE-2009-0927 vulnerability via the Collab.getIcon method. The JavaScript is obfuscated and uses the unescape function, indicating an attempt to hide malicious code. The primary goal appears to be the execution of arbitrary code, likely to download and run a secondary payload.

Heuristics 7

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: Pdf.Exploit.Agent-2270 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-2270
OpenAction trigger high PDF_OPENACTION

PDF has an /OpenAction — code runs automatically when opened
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` `ada8b515d8d9f78d7aedab78dfab76eb9079f0e9f7788b73a1bf0c773dbe09b7`	pdf-javascript-stream	PDF /JS object 6 at offset 0xF3	2209 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 4 eval/decoder/string-building token(s).

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