Malicious PDF — malware analysis report

Static analysis result for SHA-256 47e356ee9299ab6e…

MALICIOUS

PDF

45.5 KB Created: 2021-06-13 19:12:07 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 40006cd9c8387707308015138d7d7265 SHA-1: ddea1a3d6adf3c73df18c3634ab724c9c6e5bf67 SHA-256: 47e356ee9299ab6ece15ef37a5ef03fc95a4a65fdfa248bda28a9cf7abda059b
82 Risk Score

Malware Insights

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

The sample is a PDF document that uses an advance-fee scam lure, specifically promising free Robux, to entice users. It contains an embedded URI pointing to a suspicious URL, likely intended to host a malicious payload. The ML classifier also flagged this PDF as malicious with high confidence.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9678

Heuristics 4

  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://netcdn.co/app/431946152/free-robux-game-card-codes-game-hack
    • http://www.taxiaparis.fr/images/roblox-free-robux-hack_GM431946152.pdf
    • http://www.taxiaparis.fr/images/coin-master-free-attack-hack_GM406889139.pdf
    • http://www.taxiaparis.fr/images/coin-master-gold-cards-hack_GM406889139.pdf
    • http://www.taxiaparis.fr/images/coin-master-free-coins-2021_GM406889139.pdf
    • http://www.taxiaparis.fr/images/roblox-hack-tool-generator_GM431946152.pdf
    • http://www.taxiaparis.fr/images/roblox-free-clothes-generator_GM431946152.pdf
    • http://www.taxiaparis.fr/images/what-is-robux-in-roblox_GM431946152.pdf
    • http://www.taxiaparis.fr/images/coin-master-tiradas-gratis-2021_GM406889139.pdf
    • http://www.taxiaparis.fr/images/get-free-spins-in-coin-master_GM406889139.pdf
    • http://www.taxiaparis.fr/images/coin-master-app-hacks_GM406889139.pdf
    • http://www.taxiaparis.fr/images/get-free-robux-com_GM431946152.pdf
    • http://www.taxiaparis.fr/images/daily-free-spins-for-coin-master_GM406889139.pdf
    • http://www.taxiaparis.fr/images/roblox-adopt-me-hack_GM431946152.pdf
    • http://www.taxiaparis.fr/images/how-to-hack-someones-account-on-roblox_GM431946152.pdf
    • http://www.taxiaparis.fr/images/blogger-free-spins-and-coins_GM406889139.pdf
    • http://www.taxiaparis.fr/images/does-roblox-premium-expire_GM431946152.pdf
    • http://www.taxiaparis.fr/images/is-roblox-studio-free_GM431946152.pdf
    • http://www.taxiaparis.fr/images/free-hair-on-roblox-2021_GM431946152.pdf
    • http://www.taxiaparis.fr/images/how-to-hack-someone-on-roblox_GM431946152.pdf
    • http://www.taxiaparis.fr/images/artmoney-roblox-hack-download_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off0000464a.bin
7ed1c4f928aaf50e865cb2b745f902364b8399777e257e7dbd024488c54c1702
decompressed-pdf-stream PDF FlateDecoded stream at offset 0x464A 25432 bytes
font_01_sfnt_off000080f2.bin
450e3ee45915afe13702bf1d587eb8b9ad88a8d2113419ac9f2fd116a828e139
pdf-font-stream PDF embedded font (sfnt) at offset 0x80F2 5696 bytes
font_02_sfnt_off00008e04.bin
07d01e55fb637da21ee9a46e02dcfa8c1a35474c9f17cd2ad578e7a14c38a3dc
pdf-font-stream PDF embedded font (sfnt) at offset 0x8E04 18676 bytes