Malicious PDF — malware analysis report

Static analysis result for SHA-256 3a110c4c3eaf0e59…

MALICIOUS

PDF

99.6 KB
MD5: 91ab52e757372d9b0ac224c022edf248 SHA-1: cc5ae0bdd32cd66155c4aafdd8ea98bb863d79fd SHA-256: 3a110c4c3eaf0e59d788f9749463971307163389500b83dea15dc42fb42e529c
136 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File: User Execution

This PDF file exploits CVE-2010-0188, a vulnerability in Adobe Reader related to XFA forms and LibTIFF parsing. The critical heuristic indicates that the decoded XFA payload was matched, suggesting the exploit is designed to execute arbitrary code. The presence of embedded script payloads within XFA forms further supports this, pointing towards a malicious document designed to compromise the user's system upon opening.

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
a1e275291c30f38daec5a28024757a239ea87281d5b2169c4b9145f0dc93b8e3		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 101260 bytes

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