PDF malware analysis — malicious · bc5d57ffd4a30e1a

MALICIOUS

PDF

12.6 KB

MD5: 3cf0b97e051069c156bb5ac88ba0a641 SHA-1: 42415f9a370b9ff5aa791ca3ad7480fdd5d29f65 SHA-256: bc5d57ffd4a30e1a3d7396297e5450f823f1094c5a3d1c1e7135793a59f12750

188 Risk Score

Malware Insights

MITRE ATT&CK

T1204 Malicious Link T1204.002 Malicious File T1566 Phishing T1566.001 Spearphishing Attachment T1566.002 Spearphishing Link

The file is a PDF document identified as malicious by ClamAV, specifically as Pdf.Exploit.Agent-6136306-0. Static analysis detected an XFA form containing executable script, which is indicative of an exploit attempt. The critical heuristic firing for CVE-2010-0188 confirms that the sample leverages a known vulnerability in Adobe Reader related to XFA forms and LibTIFF processing to execute a payload. No document body text was available for analysis, but the presence of the embedded script and the exploit technique strongly suggest a malicious intent to compromise the user's system.

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` `729f66e3c998e21444f32c1dc1af7f61160737c9e3d1c5de7e098b7fbaa56dc4`	pdf-embedded-script	PDF raw stream script payload at offset 0x359	12185 bytes

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