PDF malware analysis — malicious · f6a20ca13112f123

MALICIOUS

PDF

289.4 KB

MD5: c6f51e5705931c63b5b34f911d3892b9 SHA-1: 5650dd42213b8d80b6b99a9560f90f6899f4d3ef SHA-256: f6a20ca13112f1236cee0dd533eafc7b40784cc17629c2ca9b692803d2fab701

180 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF contains embedded JavaScript, indicated by the PDF_EMBEDDED_SCRIPT_PAYLOAD heuristic. The extracted script content, although obfuscated, suggests it attempts to download and execute a second-stage payload. The PDF_LAUNCH heuristic further confirms the malicious intent by indicating a launch action. The CLAMAV_DETECTION heuristic also flags the file as malicious due to obfuscated objects.

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` `504e875e230c7711c253b45e7a5d1d21ab06d0d508207b7b60f10c0e65f1ee1f`	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).

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