Malicious PDF — malware analysis report

Static analysis result for SHA-256 f638e6c4e77608db…

MALICIOUS

PDF

3.4 KB Created: 2005-09-29 09:27:34 UTC Authoring application: Adobe PDF Library 8.0
MD5: 537c7e039893174e1380109694928c32 SHA-1: 06cb8cc2664b826e6dd038b2ead7929128c24e29 SHA-256: f638e6c4e77608dbe8d5332e742e7ef03e9c7d9c8e7e37f9702b38acd3858c68
100 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution

The sample is a PDF document that contains embedded JavaScript and an embedded file. A critical heuristic firing indicates the presence of the CVE-2010-0188 exploit, which targets Adobe Reader's XFA image processing. This exploit is likely used to achieve arbitrary code execution upon opening the document. No specific malware family was identified, but the exploit suggests a malicious intent to compromise the user's system.

Heuristics 6

  • Adobe Reader LibTIFF XFA image exploit — CVE-2010-0188 critical CVE likely CVE_2010_0188
    PDF contains XFA image data with an inline crafted TIFF payload and shellcode/delivery markers. This is the data-bound variant of the CVE-2010-0188 Adobe Reader LibTIFF/XFA exploit shape.
  • JavaScript action low PDF_JAVASCRIPT
    PDF contains a /JavaScript action. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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
  • AcroForm button with action trigger low PDF_ACROFORM_BUTTON
    PDF contains a /Btn form field together with a SubmitForm/URI/Launch/JS trigger — this is the building block of fake 'Download' or 'Open' button overlays used in PDF phishing lures

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
embedded_file_obj0004.bin
e50fa243282cfe9917f4c0f21570e403473ef1412f4ce941f5be9a17b5814b0d
pdf-embedded-file PDF EmbeddedFile object 4 at offset 0x1C6 35879 bytes