PDF malware analysis — malicious · a0a89ac901d4a3cd

MALICIOUS

PDF

40.4 KB Created: 2009-08-30 00:20:17 UTC Authoring application: AdobePS5.dll Version 5.2.2 (via Mac OS X 10.5.8 Quartz PDFContext)

MD5: 1fca4fca393e1846b8c881700b99550f SHA-1: 928dbbec7ce9651ea4ec197dd02ede481bbd6a23 SHA-256: a0a89ac901d4a3cd0fe71a31b8f0a5d5caf2cd62419a57b2c4f404189204c9af

304 Risk Score

Malware Insights

MITRE ATT&CK

T1204 Malicious Link T1204.002 Malicious Link: Malicious File T1059 Command and Scripting Interpreter T1059.003 Command and Scripting Interpreter: Windows Command Shell

This PDF document leverages CVE-2010-1240 to execute cmd.exe via a launch action. The embedded executable payload, identified by ClamAV as Pdf.Tool.Agent-1388586, is likely intended to further compromise the system. The document attempts to interact with a file named 'form.pdf' on the desktop, suggesting a lure related to form processing or delivery.

Heuristics 8

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\\form.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
Embedded Windows executable payload in PDF stream high PDF_EMBEDDED_PE_PAYLOAD

PDF stream bytes contain an embedded Windows executable DOS stub. Exploit chains often hide droppers inside ordinary streams rather than standard /EmbeddedFile attachments.
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

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj0022_000.js` `eff4a0943aaff2d99cb5c8666337775c91d4d5f687782df94d2c5fc77becde7f`	pdf-javascript-stream	PDF /JS object 22 at offset 0x9DFF	53 bytes
`stream_003_off00003b9e.bin` `7505ad4d4aeae3cd7827278a7c94f3be138a1df325c2a43deba95a9b87519900`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x3B9E	44640 bytes
`icc_00_off000002d6.icc` `2b3aa1645779a9e634744faf9b01e9102b0c9b88fd6deced7934df86b949af7e`	pdf-icc-profile	PDF ICC profile at offset 0x2D6	3144 bytes

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