Malicious PDF — malware analysis report

Static analysis result for SHA-256 ce8574c98113fe79…

MALICIOUS

PDF

16.5 KB Authoring application: Mistqwdzvd Mtegwuynyfddu
MD5: a881788a835d671dbbe2dede828d31b9 SHA-1: 0471632a02f89b1bc599d6781644965e3e779ff2 SHA-256: ce8574c98113fe79c4087c14e5c6e2106b86f41d4d1179105423786edb53a561
68 Risk Score

Malware Insights

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

The PDF file contains an embedded script payload, indicated by the PDF_EMBEDDED_SCRIPT_PAYLOAD heuristic. The ML classifier strongly flags this PDF as malicious. The embedded script likely downloads and executes a second-stage payload from the suspicious URL found in the document body. The presence of an embedded file further supports the malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • Embedded script payload in PDF stream medium PDF_EMBEDDED_SCRIPT_PAYLOAD
    PDF stream bytes contain an HTML/XFA <script> tag without accompanying Windows shell-execution primitives — common in accessible XFA forms but worth surfacing for analyst review.
  • 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://www1.personalopksuite.Kwik.To/?otby6smeej=k9fP3XPY5cqL39nJr6imnpmS4%2BTXsKiaqZqgp5mtnKvOi9ndrZalpaWfk6ShqJuZ4dyxl6KliNqY1d%2Bit767i%2BLc06uUkuKU&quot
    • http://ns.adobe.com/xdp/
    • http://www.xfa.org/schema/xci/1.0/
    • http://www.xfa.org/schema/xfa-template/2.5/
    • http://ns.adobe.com/xtd/
    • http://www.xfa.org/schema/xfa-data/1.0/
    • http://ns.adobe.com/xfdf/
    • http://www.xfa.org/schema/xfa-form/2.8/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
embedded_file_obj0008.bin
75114584c531fed18cf4c99365aa5573fe527bfde941b4db7771b84819a41520		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xD3 15844 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact contains 1 long base64-like blob(s).

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