PDF malware analysis — malicious · 9ff830153118dafc

MALICIOUS

PDF

26.4 KB

MD5: 41434aacb38180596648e94800d96bbb SHA-1: 30c608f795f5b6e2ae219b7494614febcb4e70c4 SHA-256: 9ff830153118dafcfbb20dee93fd944bf0f61557864845afe7159d6b4744a665

96 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File T1059.001 PowerShell

The critical ClamAV detection 'Pdf.Exploit.Dropped-78' and the 'PDF_EMBEDDED_SCRIPT_PAYLOAD' heuristic indicate that this PDF contains an embedded script designed to exploit a vulnerability. This script likely downloads and executes a second-stage payload, as suggested by the embedded file artifact. The XFA form structure further supports the possibility of exploitability.

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` `b51fdc8e7d35a5388d8400a4ec071e920bbe804225cc033daf3563d1cd4cb315`	pdf-embedded-file	PDF EmbeddedFile object 8 at offset 0xC8	26249 bytes

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