PDF malware analysis — malicious · 9ec878f11e2d161c

MALICIOUS

PDF

12.1 KB

MD5: d7541d72bfde1124ee3e9f848837acb4 SHA-1: e66fd7f625f1eabea8aaf8e64f93a87276cfc823 SHA-256: 9ec878f11e2d161c89191cf8d5964d7d8414c9529b174fdcac22cc69cb94940b

138 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF file contains embedded JavaScript that exploits CVE-2007-5659 using the Collab.collectEmailInfo method. This JavaScript is likely designed to download and execute a secondary payload, as indicated by the presence of deobfuscated JavaScript files. The ClamAV detection 'Pdf.Exploit.Agent-36065' further supports its malicious nature.

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` `c598063293e7224c9382f558f230d905c9c9f27da8b1ad93d08c8c3dd803ee9d`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x315	12456 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).
`legacy_pdfkit_stage_001.js` `da403c7e02d6b3d90bf15413343bcb087a7bb7699d799b23659c19eb2d4be1f3`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x315	5107 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.