PDF malware analysis — malicious · e3236dc853c4d80b

MALICIOUS

PDF

289.4 KB

MD5: 030d1ea75d811efe8a2650f69ac8e91a SHA-1: 117e9cd45a7735d2e1f2f43227beed401c4bf960 SHA-256: e3236dc853c4d80bda3e8a5934c93b25a7b491faefb630f1c21689f16a276d19

210 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF contains an embedded script payload, indicated by the PDF_EMBEDDED_SCRIPT_PAYLOAD heuristic. The script, when executed, appears to be constructing a file path within the temporary directory and writing data to it. The CLAMAV_DETECTION heuristic further confirms its malicious nature as Pdf.Dropper.Agent-7315654-0. The extracted command line suggests the script is intended to download and execute a second-stage payload.

Machine Learning

Nyx PDF Classifier malicious score 0.9998

Heuristics 4

Launch action critical PDF_LAUNCH

PDF contains a /Launch action whose target is an executable, URL, or UNC path — can start an external application
ClamAV: Pdf.Dropper.Agent-7315654-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Dropper.Agent-7315654-0
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_000482d9.bin` `1c990181d7a9566205d6a4d4438d2dd86ba8fd70c61f936fcd71fd57ce4b03a4`	pdf-embedded-script	PDF decompressed stream script payload at offset 0x482D9	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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