PDF malware analysis — malicious · e477f4067e4bdab9

MALICIOUS

PDF

12.5 KB Created: 2010-03-20 09:22:51 +00:00 Authoring application: PrimoPDF http://www.primopdf.com (via Nitro PDF PrimoPDF)

MD5: 9febdbf366e446c6275ebd2d2c5cf407 SHA-1: 7b9e3e7da5ca6e59cc4c373116173146adb001a0 SHA-256: e477f4067e4bdab9d71788d6052a39e7f253941f62074cc35bd6013a4bdf8cee

304 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File: User Execution: Malicious File T1059.003 Command and Scripting Interpreter: Windows Command Shell T1105 Ingress Tool Transfer

The PDF file contains JavaScript that utilizes a launch action to execute cmd.exe. This action is designed to exploit CVE-2010-1240, allowing for command execution. The script also contains a call to 'this.exportDataObject' which, combined with the launch action, indicates an attempt to drop and execute a payload. The embedded URL 'http://www.primopdf.com' is likely related to the document's origin or a lure.

Heuristics 9

Adobe Reader Launch action command execution critical CVE exact CVE_2010_1240

PDF uses the Adobe Reader/Acrobat Launch action pattern associated with CVE-2010-1240: cmd.exe is invoked with attacker-controlled parameters, paired with an embedded/exported payload.
Launch action critical PDF_LAUNCH

PDF contains a /Launch action whose target is an executable, URL, or UNC path — can start an external application
/Launch action target: cmd.exe critical PDF_LAUNCH_COMMAND

PDF /Launch action specifies an executable target with parameters '/Q /C %HOMEDRIVE%&cd %HOMEPATH%&(if exist "Desktop\\Testpdf.pdf" (cd "Desktop"' — references a known-dangerous executable (cmd, PowerShell, etc.).
ClamAV: Pdf.Tool.Agent-1388586 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Tool.Agent-1388586
/Launch action paired with attachment-dropping JS API high PDF_LAUNCH_PLUS_DROPPER_JS

PDF combines a /Launch action with a JavaScript API call that writes or opens an attached/external resource — the canonical shape of the CVE-2010-1240 /Launch + exportDataObject family. Benign PDFs do not pair these surfaces; the combination indicates a drop-and-execute chain regardless of the specific JS API knobs or /Launch target.
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.
Embedded file low PDF_EMBEDDED

PDF embeds a file attachment — could carry an executable or another weaponised document as a nested payload
Embedded URL info EMBEDDED_URL

One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.

URL http://www.primopdf.com

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj0018_000.js` `c29717061cb4cb04e18982cddf81c2ac3b9c9c06a6dd1fef298ab670bfca07e4`	pdf-javascript-stream	PDF /JS object 18 at offset 0x2E3A	56 bytes
`font_00_sfnt_off000004ce.bin` `162bec52abd01d487f9b6ad46ff8600e6e712ee6c9d6ce05003d99fd27e70e76`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x4CE	17328 bytes

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