PDF malware analysis — malicious · 9739d0a82d2d4acd

MALICIOUS

PDF

289.4 KB

MD5: b1377bd090512ace3a56f792b9e0e24a SHA-1: 60a624d88eaeca593aaa7555bef666902ecfea10 SHA-256: 9739d0a82d2d4acd95b16d4b67dc45aa53c4477b66e3124e9ab6973cd2f0cc0f

210 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File T1071.001 Web Protocols

The PDF contains embedded script content that utilizes cmd.exe to construct and execute a command. This command appears to be designed to download and execute a second-stage payload from a remote source, as indicated by the use of WScript.Shell and environment variable expansion. The heuristic firings confirm the presence of a launch action and an embedded script payload, strongly suggesting a dropper functionality.

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-7284728-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Dropper.Agent-7284728-0
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_000482df.bin` `a2c4d98035d0cea20b58954224a5ac70deb704ba0c04da6099739fbdf9a46a4b`	pdf-embedded-script	PDF decompressed stream script payload at offset 0x482DF	296236 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).

Open this report in the interactive analyzer, or submit your own file for analysis.