Malicious PDF — malware analysis report

Static analysis result for SHA-256 7a8955272f18927d…

MALICIOUS

PDF

3.3 KB Created: 2005-09-29 09:27:34 UTC Authoring application: Adobe PDF Library 8.0
MD5: fe7b50d97b6292ff3a8115e568dde07b SHA-1: ed1b5d174ef841f420fbe55d986b9d6ef20dc1da SHA-256: 7a8955272f18927d9de1fd488c10608ac55dcc610598ed42628d3ba23da4da9d
100 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution T1566.001 Phishing: Spearphishing Attachment

The sample is a PDF document that exploits the CVE-2010-0188 vulnerability in Adobe Reader's handling of XFA images. This exploit allows for arbitrary code execution. The PDF contains embedded JavaScript and an embedded file, suggesting a multi-stage attack. The primary attack vector is likely through a phishing email attachment.

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
64064880b611930e9b105111370d9542cdcd7cae0e922756a61f9350ce2173b6
pdf-embedded-file PDF EmbeddedFile object 4 at offset 0x1C6 35879 bytes