PDF malware analysis — malicious · 7c35ff823909b85f

MALICIOUS

PDF

289.4 KB

MD5: 74f26c1748f0ad17ede24e3e62abbfac SHA-1: 8bbc0b8559f934183f5b0c41371c7b2ba147ab6a SHA-256: 7c35ff823909b85f8a10b6ea30962a722160d08149c4a1a0297c4aaa02bab62a

180 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF contains embedded script content and a launch action, indicating it is designed to execute malicious code. The heuristic firings confirm the presence of an embedded script payload and obfuscation techniques common in malicious PDFs. The extracted script command appears to be constructing a command to create a file and execute a script, likely to download and run a second-stage payload from a remote source.

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` `1da92bb1ad648029c03ae07d54017c18ef81207fb5508368c81bd50938951b93`	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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