PDF malware analysis — malicious · 8edb8b78231934c7

MALICIOUS

PDF

80.8 KB

MD5: 4aea43923b9339378dc64f021f607def SHA-1: 01186243700de2ff085702422144ebff3a1563af SHA-256: 8edb8b78231934c7f231fb6c55bcd25884f0b12510e1d4a68a484281bbfc4f33

156 Risk Score

Malware Insights

MITRE ATT&CK

T1204 Malicious File T1204.002 Malicious File: User Execution: Malicious Attachment

The PDF file was detected as malicious by ClamAV with the signature Pdf.Exploit.Dropped-93, indicating it exploits vulnerabilities. It contains an embedded script payload, which is a common technique for delivering secondary malware. The document body is heavily obfuscated and does not provide clear user-facing content, further suggesting a malicious intent.

Heuristics 6

ClamAV: Pdf.Exploit.Dropped-93 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Dropped-93
ClamAV detection on extracted artifact critical EXTRACTED_FILE_CLAMAV

ClamAV flagged at least one file extracted from inside this sample. Even when the wrapping document carries no AV detection of its own, a hit on the carved artifact is a strong indicator the sample is a delivery vehicle.
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/

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`embedded_pdf_script_00000374.bin` `c03eceb24a3570be3fd5c0f1a3b543df178be46ad8d0dcbd0329477ec9037e8e`	pdf-embedded-script	PDF decompressed stream script payload at offset 0x374	69655 bytes
Detection ClamAV: Pdf.Exploit.Dropped-93 Obfuscation or payload: unlikely

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