PDF malware analysis — malicious · dce7409f461b64af

MALICIOUS

PDF

12.3 KB

MD5: 0061fb03c54a4b76e407d2d480d5d852 SHA-1: c7f46a8bfe0dad030c2e00d558b039c84e25597f SHA-256: dce7409f461b64affe82adbc4c5537dcea6e83b366dadf8304c9be3273ce39cd

138 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.001 Malicious Link T1204.002 Malicious File

The PDF file contains embedded JavaScript, identified by the PDF_JAVASCRIPT and PDF_JS heuristics. The critical CVE_2007_5659 heuristic indicates exploitation of a known vulnerability using JavaScript that is constructed by concatenating dictionary fields and evaluating the result. The ClamAV detection further confirms its malicious nature. The presence of deobfuscated JavaScript files suggests the script's purpose is to download and execute further stages. The exact payload and delivery mechanism are not fully discernible from the provided evidence, leading to an unknown family classification.

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` `a700231175d0191bdb25f853bb70ba4285ffdd0544538ace5d777a9e8a78c552`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x2F5	12036 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).
`legacy_pdfkit_stage_001.js` `2cf52cceba494f44400263133c65bc76f56933cb8b64be00c328bf70843344df`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x2F5	4932 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 5 eval/decoder/string-building token(s).

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