Malicious PDF — malware analysis report

Static analysis result for SHA-256 bd2e7e700e398d7f…

MALICIOUS

PDF

3.4 KB Created: 2005-09-29 09:27:34 UTC Authoring application: Adobe PDF Library 8.0
MD5: e3934421f7b41257942dbd2ed1775f83 SHA-1: 758eae0426621923f860b909b40f3fbc51dd7195 SHA-256: bd2e7e700e398d7f594153831a65a760d8627da99044e64a10a039edd45b7ccf
100 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution T1059.001 PowerShell

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 handling of XFA forms. 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 downloader or dropper.

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
a0e577e32b11292ed083c1ea2c218433beb7985bfcaf488641c152908ec74332
pdf-embedded-file PDF EmbeddedFile object 4 at offset 0x1C6 35879 bytes