PDF malware analysis — malicious · dda3733c14c149c2

MALICIOUS

PDF

12.0 KB

MD5: 27c5ef4382d108c247130744b60ed9c3 SHA-1: 831681275c3c76ec8ec86bb53a63f784c06ee7cd SHA-256: dda3733c14c149c2dad9997400bc583ab4e968f273594516bc6befc199379e2e

138 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF file contains embedded JavaScript and triggers a critical heuristic for CVE-2007-5659, indicating an exploit attempt. The presence of deobfuscated JavaScript files named 'legacy_pdfkit_stage_000.js' and 'legacy_pdfkit_stage_001.js' suggests a multi-stage attack. The ClamAV detection further confirms its malicious nature. The script's likely intent is to download and execute a second-stage payload.

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` `40cd304ac53189b7770abeb386132df64605d597d63bb2574c6fb7d59790fe2f`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x315	12181 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).
`legacy_pdfkit_stage_001.js` `065c62385cbb353c46dd0df691611199ee768e46a34eec40d33ad2dca744c78e`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x315	5038 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.