Malicious PDF — malware analysis report

Static analysis result for SHA-256 8ae5f28437f80818…

MALICIOUS

PDF

3.3 KB Created: 2005-09-29 09:27:34 UTC Authoring application: Adobe PDF Library 8.0
MD5: dcc988dad309dc8320ffe15af96d2ff8 SHA-1: e05a950cec0a357e8bc02e33d3448c68d4ce95fd SHA-256: 8ae5f28437f808186e9a46fa051d3d1c2aa70184f006908547bbdce472031717
100 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution

The PDF file contains embedded JavaScript and an XFA form, triggering a critical heuristic for CVE-2010-0188, an exploit targeting Adobe Reader's LibTIFF component. This indicates the file is designed to exploit this vulnerability for initial code execution. The presence of embedded JavaScript and an embedded file further suggests a downloader or dropper functionality, aiming to fetch and execute additional malicious content.

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
47902c608ae14d348e42b05f8f1199dfc59557ea830657d4ad15f6be0dc72afa		 pdf-embedded-file PDF EmbeddedFile object 4 at offset 0x1C6 35879 bytes

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