Malicious PDF — malware analysis report

Static analysis result for SHA-256 5a41800b2ea99452…

MALICIOUS

PDF

2.6 KB
MD5: b147ecad8bceb07e2470eb32c07c7e11 SHA-1: 57dd134c3de25bf0231f4682360d6d36c7a5199c SHA-256: 5a41800b2ea99452cbe9805ecd1e09adc3f973e062888d8dd26823d6f2eb92c2
170 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution T1059.007 JavaScript

The PDF file contains an embedded XFA form that exploits CVE-2010-0188 in Adobe Reader. The deobfuscated JavaScript within the PDF attempts to download and execute a file named 'update.exe' from the URL http://www.dano.strategyobject.com/download_file.php?e=Adobe-90-2010-0188, likely using the 'urlmon.dll' library. This indicates a classic exploit delivery mechanism.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.
  • ClamAV: Pdf.Exploit.Dropped-90 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Dropped-90
  • 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
  • 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.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://www.dano.strategyobject.com/download_file.php?e=Adobe-90-2010-0188��
    • http://ns.adobe.com/xdp/
    • http://www.xfa.org/schema/xci/1.0/
    • http://www.xfa.org/schema/xfa-template/2.4/
    • http://www.xfa.org/schema/xfa-data/1.0/
    • http://ns.adobe.com/xtd/
    • http://www.xfa.org/schema/xfa-form/2.8/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
embedded_file_obj0001.bin
3fc7b76f310509fff0a53b7207d3c8ce8462b6792ecab9b544dbe25e685fd017		 pdf-embedded-file PDF EmbeddedFile object 1 at offset 0x5D 13473 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact contains 1 long base64-like blob(s).
acroform_b64_00.js
e83db8dc1eb3686e007677a52a81cd2e60a2925a3f0bbeb0ef8e1dfdcc58c1b6		 deobfuscated-js PDF AcroForm base64 (decompressed) at offset 0x58A 8730 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.