PDF malware analysis — malicious · 546fb05c0accb08e

MALICIOUS

PDF

6.9 KB

MD5: 67df260acddda0d8c0abd4af8e566eda SHA-1: 25c63901d5009370c674a1414c4de5700d824e79 SHA-256: 546fb05c0accb08e04d1dae222e6a1d3e9a67a48f33f73dac639d1047d8ac2d2

216 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 JavaScript/JScript T1204.002 Malicious File

The PDF file contains embedded JavaScript, indicated by multiple heuristic firings including PDF_JAVASCRIPT and PDF_JS. A critical finding is the CVE-2007-5659 exploit targeting the Collab.collectEmailInfo function, which is known to execute arbitrary code. The presence of an extracted JavaScript file (javascript_obj0006_000.js) and the ClamAV detection (Heuristics.PDF.ObfuscatedNameObject) further confirm its malicious nature. The JavaScript is likely used to download and execute a secondary payload.

Heuristics 6

Collab.collectEmailInfo — CVE-2007-5659 critical CVE exact CVE_2007_5659

PDF JavaScript calls Collab.collectEmailInfo — CVE-2007-5659 is a buffer overflow in Adobe Reader triggered by a long argument or heap-sprayed message field passed to Collab.collectEmailInfo(). Part of a series of Acrobat JS API exploits. (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)
Suspicious extracted artifact high 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.
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.

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj0006_000.js` `4bbdde2e41ddd07e2411182f7a3a6c2ebf7a26f879552a810762709191f4790e`	pdf-javascript-stream	PDF /JS object 6 at offset 0x193	5998 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).

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