PDF malware analysis — malicious · aae3e7368ca777aa

MALICIOUS

PDF

11.5 KB

MD5: 88ae574b4d7f7546c3e6ebeea62b952d SHA-1: 64cc6449b8fd9c44733ff2c0c5a93b9339cbe6a1 SHA-256: aae3e7368ca777aa0cdd911eaa6961b6460fb8d8438916a4500594cd24dd9fb6

146 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious Link

The PDF file contains embedded JavaScript, indicated by multiple heuristic firings including PDF_JAVASCRIPT, PDF_JS, and PDF_FROMCHARCODE. A critical heuristic identified the CVE-2007-5659 vulnerability, specifically related to the Collab.collectEmailInfo function, which is used to execute JavaScript. This suggests the file is designed to exploit this known PDF vulnerability to run malicious code. The presence of deobfuscated JavaScript streams further supports this, indicating a complex execution chain. The ClamAV detection as Pdf.Exploit.Agent-36079 confirms its malicious nature.

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. (identified after JavaScript deobfuscation)
ClamAV: Pdf.Exploit.Agent-36079 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-36079
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.
String.fromCharCode low PDF_FROMCHARCODE

String.fromCharCode found — used to construct payload strings dynamically. Common in benign JavaScript libraries for codepoint manipulation, so this alone is informational; weaponised use is also caught by the dedicated fromCharCode-stage and exploit-shape rules. (matched inside decoded stream)
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_obj0007_000.js` `ef8bdac794684ae9cd4eb7091d80e1c5ca478c06c639d72d01626c1f7ce78b6d`	pdf-javascript-stream	PDF /JS object 7 at offset 0x19C	578 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 eval/decoder/string-building token(s).
`legacy_pdfkit_stage_000.js` `5b2584a3ff17183d8ffe12f97580a7461760d076d9780d4b0ba9325cd1fc7b51`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x36F	12200 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).
`legacy_pdfkit_stage_001.js` `6e5c56113312b76c95abe9b07aea29f06dbd2213fa5df3ed724bfe932c45abc4`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x36F	5048 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 5 eval/decoder/string-building token(s).

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