PDF malware analysis — malicious · 98881ae8f6878a40

MALICIOUS

PDF

12.2 KB

MD5: 1d07b33e2d74695a1fff2d0e4b1b383f SHA-1: ddbddaa1552cf35e61105dc77ec6908c3ae67e2b SHA-256: 98881ae8f6878a40cbdd5efad83e7125aa88ef6d692e25ef46bad6fea27faa6a

138 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 JavaScript/JScript T1204.002 Malicious File

The file is a PDF containing embedded JavaScript, which is a common technique for exploiting vulnerabilities. The critical heuristic CVE_2007_5659 indicates the use of a specific exploit targeting the Collab.collectEmailInfo function. The presence of deobfuscated JavaScript files suggests the script is designed to download and execute further malicious content, aligning with the ClamAV detection of Pdf.Exploit.Agent-36062.

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-36062 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-36062
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` `068944f8c011a88ab770b45c6de142b9305a1f515d410204d5eadd9ac2b5bfb3`	pdf-javascript-stream	PDF /JS object 7 at offset 0x19B	373 bytes
`legacy_pdfkit_stage_000.js` `33a19671487d14fe106e9b5a2e1d4891224cdc4f0155137cdca606ae3143cbb3`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x2F5	11852 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).
`legacy_pdfkit_stage_001.js` `6ddf735516a0050f3fc1cd287cdf366cfb51714d75a8cef833e22cd60f8e6533`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x2F5	4876 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.