PDF malware analysis — malicious · 9250960932dec84b

MALICIOUS

PDF

289.4 KB

MD5: 2081ce5574a25da996dce02058416e35 SHA-1: 279af2b18cba15c405f64c81dc1ee13a08ec0c87 SHA-256: 9250960932dec84bf6fd59cbd5e6dbb5fa48707844da478c4a7b2a53a23b73ae

180 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF file contains an embedded script payload, indicated by the PDF_EMBEDDED_SCRIPT_PAYLOAD heuristic. The script, which appears to be obfuscated, is designed to download and execute a second-stage payload. The DOC BODY excerpt suggests the use of cmd.exe and WScript.Shell to achieve this, likely involving the execution of a downloaded file. The CLAMAV_DETECTION heuristic further supports the malicious nature of the file.

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_000482dc.bin` `d9725ef4dbdb8bb59b0fe0a94874124fdbb2263a2549168383bdc551ebc7a6ac`	pdf-embedded-script	PDF decompressed stream script payload at offset 0x482DC	296257 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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