Malicious PDF — malware analysis report

Static analysis result for SHA-256 d5bb5e419db333cd…

MALICIOUS

PDF

3.4 KB Created: 2005-09-29 09:27:34 UTC Authoring application: Adobe PDF Library 8.0
MD5: 55ca5eafd3419acf9ef73d06e12512a6 SHA-1: f5291e30bc6a0c59eac54b9dffd2dd26e212fbf6 SHA-256: d5bb5e419db333cd19b331c5a4540f14bbeb6f03cb6aed520dc62a041ca0931a
160 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution

The file is a PDF document that contains embedded JavaScript and an embedded file. Static analysis identified a critical heuristic match for CVE-2010-0188, indicating an exploit targeting Adobe Reader's LibTIFF component via an XFA image. This exploit allows for arbitrary code execution on the victim's machine. The embedded file and JavaScript likely serve to deliver or facilitate the exploit's payload.

Heuristics 7

  • 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.
  • ClamAV: Pdf.Exploit.Agent-36078 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Agent-36078
  • 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
4e7dab020fe4ec048c3fc820cf10769a05b3a85949dfec48c37345338defc0cc
pdf-embedded-file PDF EmbeddedFile object 4 at offset 0x1C6 35879 bytes