PDF malware analysis — malicious · 3fe18a30bb6e6da7

MALICIOUS

PDF

2.3 KB

MD5: d6a6c4a820c9a308962b0d006621d560 SHA-1: be64c9f3b33f503b4b257a4bc201f1a2f5d20bff SHA-256: 3fe18a30bb6e6da79d0f344c8712b286ab929c66cef7ca1f0473bf0856f0907f

178 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.001 Malicious Link

This PDF file contains embedded JavaScript that leverages the CVE-2008-2992 vulnerability. The script uses `unescape()` and `util.printf` to decode and execute malicious code, likely leading to the download and execution of a second-stage payload. The ClamAV detection of 'Pdf.Exploit.Agent-13289' further confirms its malicious nature.

Heuristics 6

util.printf — CVE-2008-2992 critical CVE exact CVE_2008_2992

PDF JavaScript calls util.printf() — CVE-2008-2992 is a stack buffer overflow in Adobe Reader triggered by a long format-specifier argument. Widely exploited in the wild after disclosure. (matched in decompressed stream)
ClamAV: Pdf.Exploit.Agent-13289 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-13289
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 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj263984_000.js` `4e2d05e670b8f5ca336ae48b98b3a561d2f25a1056e7c259c34a1de096034e1e`	pdf-javascript-stream	PDF /JS object 263984 at offset 0x197	6989 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 10 eval/decoder/string-building token(s). Carved artifact contains 3 long base64-like blob(s).
`javascript_obj263985_001.js` `f9196241539a7339d3a380bcb3f50260905f599208c00d83b99d7ef6ef88bda9`	pdf-javascript-stream	PDF /JS object 263985 at offset 0x6C1	154 bytes
`javascript_obj263986_002.js` `f965a54191026f2bf802ea183a1bff386936e4f5b41ee4a1c2ca7d74047ec633`	pdf-javascript-stream	PDF /JS object 263986 at offset 0x791	511 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.