Malicious PDF — malware analysis report

Static analysis result for SHA-256 62f1a3d27d8fbdf0…

MALICIOUS

PDF

2.0 KB
MD5: 89f7bbd042b5a748305a8ac010a201b2 SHA-1: 484bbaca7b6972afb95745c8e1c03e84ce89a895 SHA-256: 62f1a3d27d8fbdf02de523d3399e88a8e497548693ef5d107b33c6de7635a7ef
110 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution T1566.001 Spearphishing Attachment

This PDF file contains an embedded exploit targeting CVE-2010-0188 in Adobe Reader's XFA forms. The critical heuristic firing indicates that the sample is designed to leverage this vulnerability for client-side code execution. The embedded file, 'embedded_file_obj0001.bin', is likely the secondary payload. Given the nature of the exploit, it is highly probable that this document was delivered as a spearphishing attachment.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • 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://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 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
embedded_file_obj0001.bin
17a883aac1e6c9f37d31eed7f36df02bd6fc863ca656c101b50a1193c493f781		 pdf-embedded-file PDF EmbeddedFile object 1 at offset 0x51 13562 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact contains 1 long base64-like blob(s).

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