Malicious PDF — malware analysis report

Static analysis result for SHA-256 a7d3859543fb85db…

MALICIOUS

PDF

2.9 KB Created: 2005-09-29 09:27:34 UTC Authoring application: Adobe PDF Library 8.0
MD5: cc3eb247b4420be62d18a367354e8474 SHA-1: 1b49da61a54e459b126219753d33ff1f402d5887 SHA-256: a7d3859543fb85db3bd9398c55764e677f476ff23bf2bdc3c82f40143ff1a375
162 Risk Score

Malware Insights

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

This PDF file is identified as malicious by ClamAV and exploits CVE-2010-0188, a vulnerability in Adobe Reader's handling of XFA forms and TIFF images. The exploit is embedded within an XFA image, suggesting an attempt to execute arbitrary code upon opening the document. No JavaScript or VBA scripts were extracted, but the critical heuristic indicates a direct exploit delivery mechanism.

Heuristics 8

  • 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
  • Suspicious extracted artifact info EXTRACTED_FILE_STATIC_TRIAGE
    One or more files extracted from inside this sample matched static suspicious-content checks such as script obfuscation, encoded payload blobs, packed data, or execution/download terms.

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
embedded_file_obj0004.bin
1b75b46d44d722358c0904170bdefa1b7db30164bca18420c8ca4645ebd540f1
pdf-embedded-file PDF EmbeddedFile object 4 at offset 0x1C6 12827 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact contains 1 long base64-like blob(s).