Malicious PDF — malware analysis report

Static analysis result for SHA-256 919a8213f737c8c4…

MALICIOUS

PDF

2.9 KB Created: 2005-09-29 09:27:34 UTC Authoring application: Acrobat Distiller 8.2.0 (Windows)
MD5: 2f340281e40dda5a49410aa2b0e7486f SHA-1: bc779583d36350b641fe7dbb6c21fcb06289add7 SHA-256: 919a8213f737c8c4e675a40c82545941ef3395e893c50b7c8213657a67f696c6
162 Risk Score

Malware Insights

MITRE ATT&CK
T1204 Malicious Link T1204.002 Malicious File

The PDF file contains embedded JavaScript and an embedded file, triggering critical heuristics for CVE-2010-0188 (Adobe Reader LibTIFF XFA image exploit). This indicates the document is designed to exploit a vulnerability in older versions of Adobe Reader to deliver a malicious payload. The embedded file, named 'embedded_file_obj0004.bin', is likely the secondary stage of the attack.

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
53994cd01e71626a4e8319739b3acb83264540d1a20ea7370b0835e65dd24c53
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).