PDF malware analysis — malicious · de4d5df4f57b3df9

MALICIOUS

PDF

11.7 KB

MD5: 3d9eb77bd9f231b1f399309b2a3fcab8 SHA-1: 90ef5588e3e67c87ec283a71da808152d54d6574 SHA-256: de4d5df4f57b3df9b493854fa51ea856836f17dd2822d73894ffa8245eeece96

98 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File T1566.002 Spearphishing Attachment

The PDF contains an embedded script payload and an embedded file, which are strong indicators of malicious intent. ClamAV detection as 'Pdf.Exploit.Dropped-78' further supports this. The embedded file 'embedded_file_obj0008.bin' is likely the delivered payload. The XFA form structure and embedded file suggest a common exploit delivery technique.

Heuristics 6

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
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.
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` `b22430a6160b721c4d536f811f301d7cbab42695f68706c068757f621378f377`	pdf-embedded-file	PDF EmbeddedFile object 8 at offset 0xC8	11204 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).

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