PDF malware analysis — malicious · ee241e4a06509f5f

MALICIOUS

PDF

153.0 KB Created: 2007-03-14 18:51:51 -04:00 Authoring application: Firefox (via Mac OS X 10.4.9 Quartz PDFContext)

MD5: 1c4695dcb7ffb154a3c1b302bc06ffab SHA-1: dd17fba9003056013b3e6ea3a3bed8570bc73f8e SHA-256: ee241e4a06509f5f45e858c9bc20bbade19cfb3c9f20781c49b36c2cb5e9607f

384 Risk Score

Malware Insights

MITRE ATT&CK

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

This PDF file contains embedded JavaScript and a critical PDF_LAUNCH heuristic firing, indicating it attempts to execute a command. Specifically, it targets CVE-2010-1240 by launching cmd.exe with parameters that suggest it will execute a secondary payload, identified by ClamAV as Win.Trojan.Swrort-4718. The embedded executable payload and the command execution chain strongly indicate a malicious intent to download and run further malware.

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
Embedded Windows executable payload in PDF stream critical PDF_EMBEDDED_PE_PAYLOAD

PDF stream bytes contain an embedded Windows executable with a verified PE header. Exploit chains often hide droppers inside ordinary streams rather than standard /EmbeddedFile attachments.
/Launch action target: cmd.exe critical PDF_LAUNCH_COMMAND

PDF /Launch action specifies an executable target with parameters '/Q /C (if exist "%HOMEPATH%\\My Documents\\00001.pdf" (cd "%HOMEPATH%\\My Documents"' — references a known-dangerous executable (cmd, PowerShell, etc.).
ClamAV: Pdf.Exploit.Agent-13887 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-13887
ClamAV detection on extracted artifact critical EXTRACTED_FILE_CLAMAV

ClamAV flagged at least one file extracted from inside this sample. Even when the wrapping document carries no AV detection of its own, a hit on the carved artifact is a strong indicator the sample is a delivery vehicle.
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 4

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj0029_000.js` `c906b7b2cb915d4e64018b9c3ddb8ef1223afa08bd5daf0676a6ff7e0e96a4ac`	pdf-javascript-stream	PDF /JS object 29 at offset 0x25FF4	54 bytes
`stream_006_off000086ab.bin` `64ecb3eedeb3a87cf964e943bf3b3e7b879689c1ffda0713941e61b4b19d44b4`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x86AB	256512 bytes
Detection ClamAV: Win.Trojan.Swrort-4718 Obfuscation or payload: unlikely
`icc_00_off000029fb.icc` `eb03db58ff1f226c83103a11f30b5520f9b68a7ced67daa78992723e3ea0411d`	pdf-icc-profile	PDF ICC profile at offset 0x29FB	1320 bytes
`font_00_sfnt_off00004669.bin` `a68f517baa90c8f001a07e1fbbbc2c9132b68edf8899c6c6467cce85420a90a4`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x4669	21572 bytes

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