PDF malware analysis — malicious · 2c1db9eab4a7398b

MALICIOUS

PDF

73.4 KB

MD5: d2398c83bf03cec80fe0eb62821b31f8 SHA-1: dd3fcd9a1e85d92de02336ef033fcaf945617112 SHA-256: 2c1db9eab4a7398b859f383f62dbae5cac2df4bdb75f6508fed7c5aaa431a1db

188 Risk Score

Malware Insights

MITRE ATT&CK

T1204 Malicious Link T1204.002 Malicious File T1059 Command and Scripting Interpreter T1059.007 JavaScript T1566 Phishing T1566.001 Spearphishing Attachment T1566.002 Spearphishing Link

The file is a PDF document that leverages the CVE-2010-0188 exploit targeting Adobe Reader's XFA forms and LibTIFF parsing. This exploit is designed to download and execute a malicious payload. The presence of an embedded script further supports the malicious intent, likely to facilitate the execution of the exploit payload.

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_0000034e.bin` `dd5b62bdbe1d5f256401dd1aeac88cc8f1f4057bf9c2b25c483d9947dcbcec8e`	pdf-embedded-script	PDF raw stream script payload at offset 0x34E	74422 bytes

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