PDF malware analysis — malicious · 9aaa452f75552d6d

MALICIOUS

PDF

289.4 KB

MD5: a24727b620df2802597ac6e5cca9e57a SHA-1: c0cf42a8eac1d6a361834999ebfb73add8d86a68 SHA-256: 9aaa452f75552d6de767dae35647ee018df03532a72a7727a4910c83eee2fbb2

240 Risk Score

Malware Insights

MITRE ATT&CK

T1059.003 Windows Command Shell T1204.002 Malicious File

The PDF file contains a launch action that executes cmd.exe. The command line indicates that cmd.exe will execute a script, likely to download and run a second-stage payload. The embedded script artifact and the PDF launch heuristics strongly suggest this malicious behavior.

Heuristics 5

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 — references a known-dangerous executable (cmd, PowerShell, etc.).
ClamAV: Heuristics.PDF.ObfuscatedNameObject critical CLAMAV_DETECTION

ClamAV detected this file as malware: Heuristics.PDF.ObfuscatedNameObject
Embedded script payload in PDF stream high PDF_EMBEDDED_SCRIPT_PAYLOAD

PDF stream bytes contain script execution markers such as ActiveXObject/CreateObject, WScript.Shell, PowerShell, or shell-exec primitives. This is stronger than ordinary PDF JavaScript because it indicates a staged external script payload hidden in stream bytes.
Suspicious extracted artifact medium 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 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`embedded_pdf_script_000482d7.bin` `855946644299af9e2711e51fa4dcf85a2bb30a1aaad7f1b676041d47f98eb82e`	pdf-embedded-script	PDF decompressed stream script payload at offset 0x482D7	296230 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 2 shell/COM execution token(s). Carved artifact contains 1 long hex-escaped blob(s).

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