PDF malware analysis — malicious · 9eeca6a58a5141ce

MALICIOUS

PDF

11.8 KB

MD5: 135c28bdaa214ddda83e6ea82d9630c9 SHA-1: fb5e0c18b66f92e9f09ab11df1cea7b8a77d5eb5 SHA-256: 9eeca6a58a5141ce265686b5aec4737397a8eff513d5ed1344286ad15e118683

138 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The critical heuristic CVE_2007_5659 indicates the exploitation of a known PDF vulnerability using embedded JavaScript. The PDF launcher concatenates info fields, extracts characters at a fixed stride, and evaluates the result. This suggests the file is designed to deliver a second-stage payload via JavaScript execution. The presence of deobfuscated JavaScript files further supports this. The ClamAV detection also confirms maliciousness.

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` `767d66fda28302c106b6a9fbeebc21a54e0bee02d0d2c3585321f0176499c9bc`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x315	12027 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).
`legacy_pdfkit_stage_001.js` `85dd185d3763667027d0b16dda53ae600e6cd6e90549ecd65a8b4a24832408a6`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x315	4946 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.