PDF malware analysis — malicious · af93bec810f3e499

MALICIOUS

PDF

12.0 KB

MD5: cd02b69576dfd91d7702a0840cd6f8a5 SHA-1: 591b314c564cdf667c18f5769bc34398381e6597 SHA-256: af93bec810f3e49968c32e6f999ba271f9c8007f81f51370f7646dd259400cfb

138 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.001 Malicious Link

The critical heuristic CVE_2007_5659 indicates the exploitation of a known vulnerability (CVE-2007-5659) using embedded JavaScript. The PDF launcher concatenates info fields and evaluates the result. This suggests the file's primary purpose is to exploit this vulnerability to execute arbitrary code, likely for downloading and executing a second-stage payload. The presence of deobfuscated JavaScript files further supports this analysis.

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` `c0009eae1ec5b716b2c0a7219d52d6122fee6b122cf40b84145f3d145700b1bd`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x315	12244 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).
`legacy_pdfkit_stage_001.js` `a90fa078c50d7f0e587c4ef761012ce06ea35995479a6072509ed3d2664c284d`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x315	5129 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 5 eval/decoder/string-building token(s).

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