PDF malware analysis — malicious · bf1d151356c9a8f5

MALICIOUS

PDF

76.8 KB Created: 2009-11-10 19:48:07 Authoring application: PDF Library 10.6.5 (via PDF Library 6.7.1)

MD5: 23858e844a387f062adf541a949abea8 SHA-1: 11c1ae184c9a7262eb7d9e3ac39c6ebf549a4416 SHA-256: bf1d151356c9a8f5ace074093291a4edaefc5831d2d66d222e222f5163f618f0

280 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 JavaScript/JScript T1204.001 Malicious Link/URL T1204.002 Malicious File

The PDF file contains embedded JavaScript that exploits multiple known vulnerabilities in Adobe Reader, specifically CVE-2009-0927, CVE-2007-5659, and CVE-2008-2992. These exploits are designed to download and execute a second-stage payload. The presence of multiple exploit triggers and the ClamAV detection strongly indicate malicious intent.

Heuristics 8

Collab.getIcon — CVE-2009-0927 critical CVE exact CVE_2009_0927

PDF JavaScript calls Collab.getIcon — CVE-2009-0927 is a stack buffer overflow in Adobe Reader triggered by Collab.getIcon() with a crafted argument. Allows arbitrary code execution. (identified after JavaScript deobfuscation)
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)
util.printf — CVE-2008-2992 critical CVE exact CVE_2008_2992

PDF JavaScript calls util.printf() — CVE-2008-2992 is a stack buffer overflow in Adobe Reader triggered by a long format-specifier argument. Widely exploited in the wild after disclosure. (identified after JavaScript deobfuscation)
ClamAV: Pdf.Exploit.Agent-36110 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-36110
ASCIIHexDecode filter (with exploit indicators) medium PDF_FILTER_HEX

Hex-encoding filter present alongside exploit delivery indicators — often used to hide payload or shellcode bytes
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 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj0007_000.js` `8238292709744928bd808eae3ded9d8ae052368e30054c406a75e1f865949a7d`	pdf-javascript-stream	PDF /JS object 7 at offset 0x1A5	38836 bytes
`legacy_pdfkit_stage_000.js` `a525060fe657bb64a3e27630d3d08fc11300f1665c24aecb418f4970d92996ac`	deobfuscated-js	numeric array subtract-key decoded JavaScript at offset 0x1A5	10084 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 9 eval/decoder/string-building token(s). Carved artifact contains 1 long base64-like blob(s).

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