PDF malware analysis — malicious · 22913ba2a563a85c

MALICIOUS

PDF

4.1 KB

MD5: bbcdfffe4df34e22cdaf707943f21777 SHA-1: 0d60cdd367b84dbf42a72561d3c11e31e900f538 SHA-256: 22913ba2a563a85c004df285242511fccb106b4ce39bd5c2551938992fe06211

66 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File T1566.002 Spearphishing Attachment

The PDF was flagged by a machine learning classifier with high confidence (0.999972) and also triggered heuristics for embedded script payloads and embedded files. The presence of an embedded file object suggests it is likely a dropper or exploit delivery mechanism. The XFA form heuristic might indicate a method for obfuscating malicious content.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 3

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

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`embedded_file_obj0008.bin` `d75d22687b1d1a8e6097f86eb1140f047ed7e3bb03fb9d973075ee18156809a9`	pdf-embedded-file	PDF EmbeddedFile object 8 at offset 0xEA	12850 bytes

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