Malicious PDF — malware analysis report

Static analysis result for SHA-256 7d1346efcb1ead79…

MALICIOUS

PDF

99.7 KB
MD5: fe44eca111c3a5acc181d6f2417664aa SHA-1: 09648539575799ebac6e4258a8dd763d5ac514ec SHA-256: 7d1346efcb1ead79bf9a41c0ce34f51acf51c3a30a698613b4ddb27eae3d438e
96 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File: User Execution T1566.001 Phishing: Spearphishing Attachment T1203 Exploitation for Client Execution

The sample is a PDF file that exploits CVE-2010-0188, a vulnerability in Adobe Reader related to LibTIFF XFA image processing. This indicates an attempt to achieve arbitrary code execution upon opening the document. The PDF also contains embedded file artifacts and an embedded script payload, further supporting the malicious intent. The primary attack vector is likely spearphishing, with the user being tricked into opening the malicious PDF.

Heuristics 5

  • 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.
  • 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
  • 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/xdp/
    • http://www.xfa.org/schema/xfa-template/2.5/
    • http://www.xfa.org/schema/xfa-data/1.0/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
embedded_file_obj0008.bin
826a4489705b45f10696788a809f087392a973f62fa8cc3b262b30a11fa64b86		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 101364 bytes

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