PDF malware analysis — malicious · 3e3a02b3b12f98e7

MALICIOUS

PDF

289.5 KB

MD5: 4c67833e287c70b2bf0544d8d789004f SHA-1: a4de8add97281d34efecd15b012167e706a7ecb0 SHA-256: 3e3a02b3b12f98e7489a857634b0eb08a2d8cd1037891fc4e758579e7788f785

180 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF document contains an embedded script payload, indicated by the PDF_EMBEDDED_SCRIPT_PAYLOAD heuristic. The CLAMAV_DETECTION and PDF_LAUNCH heuristics further confirm its malicious nature. The extracted DOC BODY suggests an attempt to execute a command-line script, likely to download and run a second-stage payload. The embedded script artifact 'embedded_pdf_script_000482dd.bin' is a key indicator.

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: 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_000482dd.bin` `4d056e0d6191d81bbbf3da3d2b0459e3aaed40b8a8c47297a8ec6b5f1ce45340`	pdf-embedded-script	PDF decompressed stream script payload at offset 0x482DD	296288 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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