PDF malware analysis — malicious · 3fb651931f3dacbc

MALICIOUS

PDF

61.7 KB Created: 2011-07-11 12:17:02 Authoring application: y9zB

MD5: edb3db641240b01b22c086e4909a82e6 SHA-1: 84a76c6ea902924249f693bdae0c68a05cae215f SHA-256: 3fb651931f3dacbcb66a0655d7428dbf04e078d16a15d2de8bc68e1aeba248ee

142 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File T1059.001 PowerShell

The PDF file contains an embedded JavaScript payload that exploits CVE-2010-0188, a known vulnerability in Adobe Reader related to LibTIFF XFA image processing. The script is likely designed to download and execute a second-stage payload from the unknown reputation URL. The presence of XFA forms and embedded scripts strongly indicates a malicious intent to compromise the user's system.

Heuristics 8

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.
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
PDF differential parser failed info PDF_DIFFERENTIAL_PARSE_FAILED

The cross-check parser (pdfminer.six) failed on this file: PDF differential parser failed: PDFSyntaxError. Static heuristics still ran and any of their findings above are valid; only the differential cross-check signal is missing.
Suspicious extracted artifact info EXTRACTED_FILE_STATIC_TRIAGE

One or more files extracted from inside this sample matched static suspicious-content checks such as script obfuscation, encoded payload blobs, packed data, or execution/download terms.
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
- http://�wt.xfa.org/schema/xfa-data/1.0/

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_002_off0000031d.js` `126582b403d36e92b9ca1965ba2ea17121b86f5fc1ad8a75c0d211953b8ba60e`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x31D	61386 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).
`embedded_pdf_script_0000062b.bin` `7a6aea7e11264b94dd6faf24ebe6e448e390a3871e611ea4a58e8d0eb07383f4`	pdf-embedded-script	PDF raw stream script payload at offset 0x62B	61769 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 407 long base64-like blob(s).

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