PDF malware analysis — malicious · 55c77f662a336fea

MALICIOUS

PDF

16.3 KB

MD5: 9f3f5d3cb75cca77ecb41e0b92eb9273 SHA-1: 1fae855a1d802cd3e7645f1edc7e1507255a7ac6 SHA-256: 55c77f662a336fea202b6e4a78dde45cc1e0c31b53eea43c7da306686d97d2ed

188 Risk Score

Malware Insights

MITRE ATT&CK

T1203 Exploitation for Client Execution T1059.001 PowerShell

The PDF file contains an embedded script payload and triggers a critical heuristic for CVE-2010-0188, indicating it exploits a vulnerability in Adobe Reader's handling of XFA forms. The embedded script is likely responsible for executing the exploit payload, leading to arbitrary code execution. The ClamAV detection further confirms its malicious nature.

Heuristics 6

Adobe Reader LibTIFF XFA image exploit — CVE-2010-0188 critical CVE likely CVE_2010_0188

PDF contains the CVE-2010-0188 exploit template: XFA JavaScript heap-spray setup, a generated TIFF image payload, and assignment of that TIFF data to an XFA image field rawValue to trigger Adobe Reader's LibTIFF parser.
XFA form contains executable script high CVE related PDF_XFA_SCRIPT

PDF embeds an XFA form whose dataset contains a <script> or <xfa:script> block — XFA scripting has been the exploit primitive for several Adobe Reader RCEs (CVE-2010-0188 family, CVE-2018-4901, and others). Plain XFA without scripts is far less risky.
ClamAV: Pdf.Exploit.Agent-6136306-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-6136306-0
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://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_00000359.bin` `6aabff408c7d8ae522540718c2c53e837022ae429798fa73ed06bdacd29d8c15`	pdf-embedded-script	PDF raw stream script payload at offset 0x359	15944 bytes

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