PDF malware analysis — malicious · d02bbc3094e49032

MALICIOUS

PDF

289.4 KB

MD5: cce37cece1224748f988aa0ec35454c9 SHA-1: 79dd929f8d402f47a5cd05c6ab7424ef685138da SHA-256: d02bbc3094e4903217ed010a20f63efb937602ada9689c494a213bfd2409f952

210 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 and the presence of an embedded artifact. The PDF_LAUNCH heuristic confirms that the file attempts to launch an action, likely exploiting a vulnerability. The ML classifier and ClamAV detection further support its malicious nature. The extracted DOC BODY snippet suggests the script may involve command execution and environment variable expansion, potentially to download and execute further stages.

Machine Learning

Nyx PDF Classifier malicious score 0.9996

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` `9d9e184713e00ba246df90ae9d841cd4534c7757d70b8497df28b15f82ad8ebb`	pdf-embedded-script	PDF decompressed stream script payload at offset 0x482D7	296239 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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