PDF malware analysis — malicious · 487c8b22089fed3d

MALICIOUS

PDF

2.1 KB Created: 2025-08-03 08:46:44 Authoring application: PyFPDF 1.7.2 http://pyfpdf.googlecode.com/ First seen: 2025-08-03

MD5: 3e80b956a8d02b98bc9c6ffb2baa9462 SHA-1: a3b4d8e9860db61dfb008694539a85cc3cb7fcbc SHA-256: 487c8b22089fed3d6397f6477b32fef8f63c1a0421c1e4d4e47743f0266508a4

62 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell

The PDF file contains an embedded script that, when decompressed, reveals text resembling a security incident investigation report. This script is flagged as a suspicious payload, indicating the PDF is designed to deceive the user into believing they are reviewing a legitimate report while executing malicious code. The embedded script itself does not appear to contain further malicious commands but is indicative of a dropper or lure mechanism.

Machine Learning

Nyx PDF Classifier clean score 0.0194

Heuristics 3

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.
Embedded URL info EMBEDDED_URL

One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.

URL http://pyfpdf.googlecode.com/

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`embedded_pdf_script_0000056f.bin` `3e047ec8658782429219cb68f9af4f5972e79aee342de6117c9fea5632d51e35`	pdf-embedded-script	PDF decompressed stream script payload at offset 0x56F	1450 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 shell/COM execution token(s).

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