Malicious PDF — malware analysis report

Static analysis result for SHA-256 59a90f983afeb6b4…

MALICIOUS

PDF

9.7 KB
MD5: 1e1f9f9888ce3568f93624a27685c4db SHA-1: 7f2feb649fc2f16b99fb3bd8fa84c02f449b9349 SHA-256: 59a90f983afeb6b4f10ead0a7e1de81e2ad263fbbd69cf50ed2cfa77730c045a
104 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution T1059.001 PowerShell

The PDF file contains a critical heuristic match for CVE-2010-0188, indicating it exploits a vulnerability in Adobe Reader related to XFA forms. Additionally, a PDF embedded script payload was detected. The embedded URL is likely related to the exploit or payload delivery. The combination of these factors strongly suggests an exploit attempt to download and execute further malicious content.

Heuristics 6

  • Adobe Reader LibTIFF XFA image exploit — CVE-2010-0188 critical CVE likely CVE_2010_0188
    PDF contains the CVE-2010-0188 exploit template: XFA JavaScript heap-spray setup, a generated TIFF image payload, and assignment of that TIFF data to an XFA image field rawValue to trigger Adobe Reader's LibTIFF parser.
  • 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
  • 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
  • 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.xfa.org/schema/xfa-locale-set/2.1/

Extracted artifacts 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
embedded_file_obj0041.bin
c06dcd026a7ea0536b63e07ce688691b585339a3ab7ff59065e546b56308c7bb		 pdf-embedded-file PDF EmbeddedFile object 41 at offset 0xE8A 85 bytes
embedded_file_obj0042.bin
dda0835df994b8be920f715db36452f6cee7bb42bbc9c897f878a7b298ba8e91		 pdf-embedded-file PDF EmbeddedFile object 42 at offset 0xF3C 1029 bytes
embedded_file_obj0111.bin
12ea2cfacb0a30e6a685a3fc89be80970c5b11bf55a6466660f42f8ac0966e8e		 pdf-embedded-file PDF EmbeddedFile object 111 at offset 0x1156 61094 bytes
embedded_file_obj0044.bin
3dd68f00f4fcb366a2a3a17c65cb2626eeddf5ea5713302d374310561d810169		 pdf-embedded-file PDF EmbeddedFile object 44 at offset 0x2148 144 bytes
embedded_file_obj0045.bin
10c03f88a5f0a0833dc5b2c8ac295b3a3c6f65e23889eb8cc1dc6fe29bf7f275		 pdf-embedded-file PDF EmbeddedFile object 45 at offset 0x21F5 77 bytes

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