Malicious PDF — malware analysis report

Static analysis result for SHA-256 395e4c0ecd7470e6…

MALICIOUS

PDF

3.0 KB Created: 2005-09-29 09:27:34 UTC Authoring application: Acrobat Distiller 8.1.0 (Windows)
MD5: cf3287dfed49c0e520377929680cdd39 SHA-1: 8946ec34b52ffe9a50e91c0e0eb64322b9a1b670 SHA-256: 395e4c0ecd7470e6840f5b7fd1a9a015e601d31a12979957976eeb4792bc1ab3
162 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell T1204.002 Malicious File

This PDF file contains embedded JavaScript and an XFA form, which is leveraged by the CVE-2010-0188 exploit. The exploit targets a vulnerability in Adobe Reader's handling of XFA images. The embedded JavaScript is likely responsible for downloading and executing a secondary payload, as indicated by the 'Pdf.Exploit.Agent-36015' ClamAV detection and the presence of an embedded binary file.

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-36015 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Agent-36015
  • 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
e01675457bdbf575575553237c4097e265e72cb6a9ac5a990f1660c904f240a5
pdf-embedded-file PDF EmbeddedFile object 4 at offset 0x1D5 12826 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact contains 1 long base64-like blob(s).