PDF malware analysis — malicious · 22b4dfb44a28af7a

MALICIOUS

PDF

12.6 KB

MD5: 826185a3b14a241f0e09bf919866a498 SHA-1: 873197639eb596d619b862b2e2bc55cdb24fce44 SHA-256: 22b4dfb44a28af7ab07906bcc8d106ef43bc50fff83d3774eaff02c10839aa24

188 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File: User Execution T1566.001 Phishing: Spearphishing Attachment

The sample is a PDF document containing an XFA form, which is known to be a vector for exploits. Static analysis detected the CVE-2010-0188 exploit targeting Adobe Reader's LibTIFF component. An embedded script within the XFA form likely facilitates the execution of the exploit and delivery of a secondary payload. The embedded URL is associated with XFA templates, further supporting the exploit vector.

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` `7bf7dc89023eaa02daf807b2ded54e62fee0ea1148c290bb52e569b563d83334`	pdf-embedded-script	PDF raw stream script payload at offset 0x359	12185 bytes

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