Malicious PDF — malware analysis report

Static analysis result for SHA-256 e4e7e74287133421…

MALICIOUS

PDF

10.6 KB
MD5: 097ebc2cd5ddba8e51420f58cde4fe84 SHA-1: 8619523f57897f666479a3acd31ff041fcbf9010 SHA-256: e4e7e74287133421238f70e78a3181dbf5ddafcca3dda19b78804bf51d2daedb
80 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious File

The PDF file exhibits characteristics commonly associated with malicious documents, including embedded files and the use of XFA forms. ClamAV detection as 'Heuristics.PDF.ObfuscatedNameObject' further supports its malicious nature. The presence of an embedded file suggests it is likely a dropper or downloader for a secondary payload.

Heuristics 5

  • ClamAV: Heuristics.PDF.ObfuscatedNameObject critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Heuristics.PDF.ObfuscatedNameObject
  • 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
  • PDF differential parser failed info PDF_DIFFERENTIAL_PARSE_FAILED
    The cross-check parser (pdfminer.six) failed on this file: PDF differential parser failed: PSSyntaxError. Static heuristics still ran and any of their findings above are valid; only the differential cross-check signal is missing.
  • 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.

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
embedded_file_obj0001.bin
8217b611f2f61809890382d8659f8b2d1ae3f4d8d17c7730a0a7efbd19637a6d
pdf-embedded-file PDF EmbeddedFile object 1 at offset 0x10C 13408 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact contains 1 long base64-like blob(s).