PDF malware analysis — malicious · 486e2875a5847d63

MALICIOUS

PDF

4.1 KB

MD5: c1f0f495f98782efabbe81d9c25769fe SHA-1: 5a147b71567eba8265bca163a2d42a69e2c37458 SHA-256: 486e2875a5847d63b795eb99d3fe4326e7d4590e2bfa691c56796ae05ad23668

68 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File T1566.002 Spearphishing Attachment

The PDF was flagged by an ML classifier with high confidence as malicious. Static analysis identified an embedded script payload within a PDF stream, and an embedded file artifact was also extracted. The presence of these elements strongly suggests the PDF is intended to download and execute a secondary payload.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 4

Embedded script payload in PDF stream medium PDF_EMBEDDED_SCRIPT_PAYLOAD

PDF stream bytes contain an HTML/XFA <script> tag without accompanying Windows shell-execution primitives — common in accessible XFA forms but worth surfacing for analyst review.
Embedded file low PDF_EMBEDDED

PDF embeds a file attachment — could carry an executable or another weaponised document as a nested payload
XFA form low PDF_XFA

PDF uses XML Forms Architecture — can contain script logic
Suspicious extracted artifact info 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_file_obj0008.bin` `b12ace0c1503605a832ebb8281089699972f1eaa8f04c88b083f72de5d475d1c`	pdf-embedded-file	PDF EmbeddedFile object 8 at offset 0xEA	12584 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 eval/decoder/string-building token(s).

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