PDF static analysis report

Static analysis result for SHA-256 13857bb6fb76badd…

CLEAN

PDF

96.6 KB Created: Vì0ð\“Z8fÐXŒ³­Él™—týÍ8.ÂI@ZB¸öS’ðu«‡ Authoring application: ¨Ù*N*¶é˜y!ž ÌaëÁ¼ŽÀn¼·4ä$.£Ì·Ta©Jñ›&>¥d:‚TúêzÐb!ðÜ»l<écAðC (via w µ¾¡í՝‚Fâ“H]؁®çßäTùÐõu6鏹k蔘½¬¨ˆÄOûÃ%•­H»ëu :Cçâ%#{‰í±) First seen: 2019-03-18
MD5: 4e3c907699ea9ce39e1c4bd4f1b030e2 SHA-1: 0427c50fc75d3691aff742d4a75327647c21be32 SHA-256: 13857bb6fb76badd2ee22cb10ec54edd3f099775c01a6c658da56554b2643c92
24 Risk Score

Malware Insights

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

The PDF is encrypted, preventing deeper static analysis of its contents. However, heuristics indicate it is an image-only document with an action trigger, a common technique for phishing lures. The small file size and image-only nature suggest it's a screenshot designed to hide a clickable element, likely leading to a malicious URL or prompt for user interaction.

Machine Learning

  • Nyx PDF Classifier clean score 0.0224

Heuristics 3

  • Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
    PDF has 2 image(s), only 0 text block(s), carries a click-outward action, and is only 96 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
  • Encrypted PDF (string and stream contents are opaque to static scan) info PDF_ENCRYPTED
    PDF declares /Encrypt — string objects and stream contents are encrypted with the standard security handler (RC4 or AES). On its own this is informational; legitimate encrypted documents include signed contracts, billing statements, and rights-managed material. Static heuristics cannot inspect encrypted payload bytes.
  • 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.microsoft.com/typography/ctfontshttp://fontfabrik.comYou In PDF document text
    • http://www.microsoft.com/typography/fonts/default.aspxIn PDF document text
    • http://crl.microsoft.com/pki/crl/products/MicrosoftTimeStampPCA.crl0XIn PDF document text
    • http://www.microsoft.com/pki/certs/MicrosoftTimeStampPCA.crt0In PDF document text
    • http://crl.microsoft.com/pki/crl/products/MicCodSigPCA_08-31-2010.crl0ZIn PDF document text
    • http://www.microsoft.com/pki/certs/MicCodSigPCA_08-31-2010.crt0In PDF document text
    • http://crl.microsoft.com/pki/crl/products/microsoftrootcert.crl0TIn PDF document text
    • http://www.microsoft.com/pki/certs/MicrosoftRootCert.crt0In PDF document text
    • http://www.microsoft.com/typography/0In PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_005_off00004b65.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4B65 170420 bytes
SHA-256: 7e4af2d1a4638e37259589c7fe3236dc59c6c0dd5fa327a291f1b3d7d415281f