PDF malware analysis — malicious · e4141a39b9131fe5

MALICIOUS

PDF

11.9 KB

MD5: ff7fab24376aac85e1af227e1a6d79ec SHA-1: 76ca25c5bf23c35c5eaef05628347e5671de9619 SHA-256: e4141a39b9131fe51b7babad376999872c426f92b9153574e23340767fd4d655

96 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File T1566.002 Spearphishing Attachment

The critical ClamAV heuristic 'Pdf.Exploit.Dropped-78' strongly indicates malicious intent. The presence of an embedded script payload and an embedded file further supports this, suggesting the PDF is a dropper for further malicious content. The document body is heavily obfuscated and does not provide clear user-facing lures.

Heuristics 5

ClamAV: Pdf.Exploit.Dropped-78 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Dropped-78
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
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://ns.adobe.com/xdp/
- http://www.xfa.org/schema/xfa-template/2.5/
- http://www.xfa.org/schema/xfa-data/1.0/

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`embedded_file_obj0008.bin` `7c511cbca1650104567ddc6eb15b50cdbee2b62cb75a7afea935d2392227d818`	pdf-embedded-file	PDF EmbeddedFile object 8 at offset 0xC8	11440 bytes

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