PDF malware analysis — malicious · 8e758738873adc6a

MALICIOUS

PDF

94.1 KB

MD5: 4922100c21aa47d606d7d78ee9ce6a26 SHA-1: 3a43d719ecc924f5827777b909316bf3b5a5a903 SHA-256: 8e758738873adc6acb2c44c46cd7198dbd4a6cce3afc9162e6d8ab6e16e4e184

148 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File T1566.001 Spearphishing Attachment

The file is identified as malicious by ClamAV with multiple signatures indicating it is a PDF exploit. The presence of an embedded script payload and XFA form further supports this classification. The embedded script is likely responsible for delivering the malicious payload, although its exact function cannot be determined due to its obfuscated nature.

Heuristics 5

ClamAV: Pdf.Exploit.Agent-6136306-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-6136306-0
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.
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_pdf_script_00000246.bin` `30849d5f7743cf3b34bd85a40115ef963a2e9dec0d08dab89bc56cb3c1cf4616`	pdf-embedded-script	PDF raw stream script payload at offset 0x246	95638 bytes
Detection ClamAV: Pdf.Exploit.Agent-36769 Obfuscation or payload: unlikely

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