PDF malware analysis — malicious · 2cbf6984da9e7b5c

MALICIOUS

PDF

289.4 KB

MD5: 5da459100ba7561deab10863ecd29478 SHA-1: c5c3799dbd0f689113aa8f4e133575d62ec48bc8 SHA-256: 2cbf6984da9e7b5ca24308227920c905e8aa65ebb5c293c35d889bc8983ceee1

210 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF contains embedded JavaScript, as indicated by the PDF_EMBEDDED_SCRIPT_PAYLOAD heuristic. The ML classifier and ClamAV also flagged this file as malicious. The embedded script likely attempts to download and execute a second-stage payload, as suggested by the PDF_LAUNCH heuristic and the presence of script execution terms in the static triage. The DOC BODY excerpt shows obfuscated commands that appear to be preparing to write and execute a script.

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: 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` `a6d4c2da09ef7fadeb2e96c0cc28a53b5c0696975032e9e2ed494cfa5896896f`	pdf-embedded-script	PDF decompressed stream script payload at offset 0x482D7	296228 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.