PDF malware analysis — malicious · 0bd1ab4fb6b16ff0

MALICIOUS

PDF

11.6 KB

MD5: 1e540e9e04b2a741a60b17e1dafb5258 SHA-1: dea13dc66c0a1865ffda8e0c68519ff071657336 SHA-256: 0bd1ab4fb6b16ff03a7d375a0f8bd6d3d53cc2796c9baaf0ebf916c9291e1d7c

118 Risk Score

Malware Insights

MITRE ATT&CK

T1203 Exploitation for Client Execution T1566.001 Spearphishing Attachment

The PDF sample contains an embedded file and triggers heuristics related to embedded scripts and exploits. The ML classifier and ClamAV detection strongly indicate malicious intent, likely involving the execution of the embedded artifact. While no specific family is identified, the attack pattern suggests a common method of delivering secondary payloads via malicious documents.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 6

ClamAV: Pdf.Exploit.Dropped-78 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Dropped-78
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 script payload in PDF stream low 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.
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` `b2e9a7387ca79d65237ae1c25f7f1c8eee8563762ae3a5d61b2ba351f8506938`	pdf-embedded-file	PDF EmbeddedFile object 8 at offset 0xC8	11166 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).

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