Malicious PDF — malware analysis report

Static analysis result for SHA-256 0584c12f86615069…

MALICIOUS

PDF

34.4 KB Created: 2021-07-05 18:10:43 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 06f92edcfc402e1ac12b6aeb2c1281f5 SHA-1: 5a837bcaa5bc9e4d78e792fe9675fee1657bb527 SHA-256: 0584c12f86615069a9fa780ef3af74f7e7a2a644f604a196559d3b9c364d0ea4
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean.
  • 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.tw/app/406889139/coin-master-hack-twitter-game-hack PDF link annotation
    • http://library.patria-artha.ac.id/repository/roblox-why-is-nothing-free_GM431946152.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/free-promo-codes-roblox-november-2021_GM431946152.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/how-to-ban-people-in-roblox-hack_GM431946152.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/coin-master-daily-bonus_GM406889139.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/robux-generatr-hack-2021_GM431946152.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/2021-best-roblox-hack_GM431946152.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/roblox-hack-me_GM431946152.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/games-that-give-free-robux_GM431946152.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/how-do-you-hack-minecraft_GM479516143.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/vechlie-simulator-for-free-roblox_GM431946152.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/how-to-make-a-minecraft-java-server-for-free_GM479516143.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/roblox-lumber-tycoon-2-hack-windows-7_GM431946152.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/download-btools-hack-roblox_GM431946152.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/how-to-get-free-money-in-vehicle-simulator-roblox_GM431946152.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/free-roblox-dont-need-any-robux_GM431946152.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/how-to-get-free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/free-robux-cards_GM431946152.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/boku-no-roblox-remastered-cheat-codes_GM431946152.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/hack-how-to-get-the-old-events-roblox_GM431946152.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/coin-master-hack_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off00003237.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3237 22340 bytes
SHA-256: 1873bace8e47cdb6400e71f8d1ebdcf32531bc803768d8943dcc36c0b6d4c8f1
font_01_sfnt_off000063d5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63D5 18168 bytes
SHA-256: ddfa55fb21221439d64b6917fef2d932236e956379e28e7db94b80a6554a2b49

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