PDF malware analysis — malicious · 499cbce87bf1deb2

MALICIOUS

PDF

11.7 KB

MD5: f898636ae560dc28bf8816e75f3605e9 SHA-1: 06e770e7fd10986af5ec17aff88ffded185f3206 SHA-256: 499cbce87bf1deb24eeb2a77b4e464659a32503566a521f9e62a15d5a9df9a45

138 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.001 Malicious Link

The PDF file contains embedded JavaScript that leverages the 'collab.collectEmailInfo' method, a known exploit for CVE-2007-5659. This exploit is used to deobfuscate and execute further JavaScript stages. The primary intent appears to be the download and execution of a second-stage payload, as indicated by the presence of multiple deobfuscated JavaScript files.

Heuristics 5

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-36065 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-36065
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_obj0007_000.js` `9c67560e8c63b720885d3efc1627b844b86a6ec08e99e5b65a22eae832045756`	pdf-javascript-stream	PDF /JS object 7 at offset 0x19C	431 bytes
`legacy_pdfkit_stage_000.js` `4cf5100f2f0cbc126cb221f765fef1035a34673e7590c137746798203093a3e1`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x315	12105 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).
`legacy_pdfkit_stage_001.js` `0296de67f3945e50f71019867749d9baa065666b7f56908b075bdef047dede7d`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x315	4935 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.