Malicious PDF — malware analysis report

Static analysis result for SHA-256 53853613ff49909c…

MALICIOUS

PDF

13.1 KB
MD5: 8e582cc3f476049bf3b8b4f5b4541613 SHA-1: fc4e24ba13dafdf448c13c7054b1e259ac7c6683 SHA-256: 53853613ff49909c088ffc714c429994da99822e3a756a0270c4eff4e8d2ebc3
84 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File T1566.002 Spearphishing Attachment

The file is a PDF document identified by ClamAV as Pdf.Exploit.Agent-36962, indicating it contains an exploit. The presence of embedded files and an XFA form further supports the likelihood of a PDF exploit being used. The embedded URL, while seemingly benign, is associated with the XFA form structure, which can be leveraged in exploits. The exact nature of the exploit and its payload cannot be determined from the provided evidence, but the overall pattern suggests a malicious PDF designed to compromise the user's system.

Heuristics 5

  • ClamAV: Pdf.Exploit.Agent-36962 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Agent-36962
  • 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 0x26FF 85 bytes
embedded_file_obj0042.bin
dda0835df994b8be920f715db36452f6cee7bb42bbc9c897f878a7b298ba8e91
pdf-embedded-file PDF EmbeddedFile object 42 at offset 0x27B1 1029 bytes
embedded_file_obj0043.bin
e7851af5e081c5f5c213de29bdc9f7a06a2e391a781bf5a9853e28c7c369149e
pdf-embedded-file PDF EmbeddedFile object 43 at offset 0x29CA 1735 bytes
embedded_file_obj0044.bin
3dd68f00f4fcb366a2a3a17c65cb2626eeddf5ea5713302d374310561d810169
pdf-embedded-file PDF EmbeddedFile object 44 at offset 0x2DB6 144 bytes
embedded_file_obj0045.bin
10c03f88a5f0a0833dc5b2c8ac295b3a3c6f65e23889eb8cc1dc6fe29bf7f275
pdf-embedded-file PDF EmbeddedFile object 45 at offset 0x2E62 77 bytes