PDF malware analysis — malicious · f0105e10439f263f

MALICIOUS

PDF

12.4 KB

MD5: e0e3feaff7154dbda722ca7b1e256c0b SHA-1: 43fedfa98c1dd8c4a58dd2e0b016796e4fbd9b3f SHA-256: f0105e10439f263f7bdaf80fce58efa4a9ce9a8c849b7c6d8d100c3868a5b507

138 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.001 Malicious Link

The PDF file contains embedded JavaScript, identified as a critical exploit for CVE-2007-5659. The heuristics indicate that the PDF launcher concatenates information fields, extracts characters at a fixed stride, and evaluates the result. This process likely leads to the execution of the embedded JavaScript streams, which are named 'legacy_pdfkit_stage_000.js' and 'legacy_pdfkit_stage_001.js', suggesting a multi-stage exploit. The file is detected by ClamAV as 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` `72d69616117566d17229ad1d3876e2b4afe5778b6772dc3237a74c61ac4c6095`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x2F5	12172 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).
`legacy_pdfkit_stage_001.js` `2429bf007fde6267cd36a2fed46605c1e29ff079942552d280369971e39d9b8d`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x2F5	4977 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.