PDF malware analysis — malicious · d020af33e22ae80a

MALICIOUS

PDF

40.0 KB

MD5: f13d73bdde6bd78518b5f5bc900856b6 SHA-1: 38097c899f717527948a45c7cd61746a5e5366a6 SHA-256: d020af33e22ae80a5695dbafdccbd371484d6a2a941aa5e8fb30ac212bc6f11c

178 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.001 Malicious Link

The PDF file contains embedded JavaScript and U3D content, triggering heuristics related to CVE-2007-5659 and other PDF exploits. The embedded JavaScript, identified as 'legacy_pdfkit_stage_000.js' and 'legacy_pdfkit_stage_001.js', is likely responsible for downloading and executing a secondary payload. ClamAV also detected this file as 'Pdf.Exploit.Agent-36062'.

Heuristics 6

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)
U3D/3D content in PDF — Adobe Reader 3D parser CVE-family indicator high CVE related PDF_U3D_CVE_RELATED

PDF contains U3D (Universal 3D) or 3D annotation content — CVE-2011-2462 and CVE-2009-3953 are critical vulnerabilities in Adobe Reader's U3D processing that allow arbitrary code execution. U3D content in PDFs is extremely rare in normal documents.
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 4

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 0x1A2	373 bytes
`legacy_pdfkit_stage_000.js` `ade43782e23133f7fd076013a881e5d67bf79af45f45231d9d5fa4cc6358df3a`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x2FC	12746 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).
`legacy_pdfkit_stage_001.js` `56db547a7269eda45c193935d2a362e02111b3679451ae78a6d7d23f4d886eaf`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x2FC	5272 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 5 eval/decoder/string-building token(s).
`u3d_00_off00003379.bin` `5a2e225052b190e330f1fe0d5b8cfc915aa9bf19aca2d64aba3a55977391ee38`	pdf-3d-stream	PDF U3D 3D stream at offset 0x3379	23129 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact entropy is 7.99, consistent with packed or encrypted content.

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