Malicious PDF — malware analysis report

Static analysis result for SHA-256 e5a08fee3d0e4642…

MALICIOUS

PDF

99.9 KB
MD5: 69b9fe55e40d8da138efc5e9ea35b855 SHA-1: 5d63772101034ad23db27ede95c3651b81c66e72 SHA-256: e5a08fee3d0e4642bcffa19f60d90dec9aa5651b4b181386bdb1203c5f5529c0
136 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File: Exploitation for Client Execution

The sample is a PDF file that exploits CVE-2010-0188, a vulnerability in Adobe Reader related to XFA forms and LibTIFF. The heuristic firings indicate an embedded script payload within an XFA form, which is characteristic of exploit delivery. The embedded script likely attempts to download and execute a second-stage payload, although the specific script content was truncated and could not be fully analyzed. The presence of the CVE-2010-0188 exploit is the primary indicator of malicious intent.

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.
  • 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
484b72e65eea784db390d95bd27a42fc238acbac4bba0cb4bdb431d816af38b5		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 101534 bytes

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