Malicious PDF — malware analysis report

Static analysis result for SHA-256 d097f9d8351affc2…

MALICIOUS

PDF

35.3 KB Created: 2021-07-03 16:04:59 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: ba924919b13274251e1551f2562d47d9 SHA-1: 2bc65ce86058ffa7344cc67dcaa156cae981bb5b SHA-256: d097f9d8351affc298d62d26328509fe23fe2e251777c64807334863d5a41bc9
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/431946152/how-to-get-free-robux-for-free-game-hack PDF link annotation
    • http://lib.stiesultanagung.ac.id/repository/roblox-hair-free-girl-pink_GM431946152.pdfIn PDF document text
    • http://lib.stiesultanagung.ac.id/repository/steam-free-robux-live-now_GM431946152.pdfIn PDF document text
    • http://lib.stiesultanagung.ac.id/repository/how-do-i-get-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://lib.stiesultanagung.ac.id/repository/how-to-get-the-ultimate-victory-for-free-in-roblox_GM431946152.pdfIn PDF document text
    • http://lib.stiesultanagung.ac.id//repository/pubg-uc-alma_GM1330123889.pdfIn PDF document text
    • http://lib.stiesultanagung.ac.id/repository/free-robux-pastebin-com_GM431946152.pdfIn PDF document text
    • http://lib.stiesultanagung.ac.id//repository/free-roblox-accounts-with-robux-that-work-not-banned_GM431946152.pdfIn PDF document text
    • http://lib.stiesultanagung.ac.id/repository/coin-master-daily-free-spins-haktuts_GM406889139.pdfIn PDF document text
    • http://lib.stiesultanagung.ac.id/repository/fake-hacker-id-roblox_GM431946152.pdfIn PDF document text
    • http://lib.stiesultanagung.ac.id//repository/blogger-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://lib.stiesultanagung.ac.id/repository/infinite-robux-hack-2021-script_GM431946152.pdfIn PDF document text
    • http://lib.stiesultanagung.ac.id/repository/free-generator_GM431946152.pdfIn PDF document text
    • http://lib.stiesultanagung.ac.id/repository/free-minecraft-com_GM479516143.pdfIn PDF document text
    • http://lib.stiesultanagung.ac.id/repository/coin-master-coins-free_GM406889139.pdfIn PDF document text
    • http://lib.stiesultanagung.ac.id/repository/free-robux-games-that-work-2021-no-password_GM431946152.pdfIn PDF document text
    • http://lib.stiesultanagung.ac.id/repository/roblox-free-download-for-ps4_GM431946152.pdfIn PDF document text
    • http://lib.stiesultanagung.ac.id/repository/games-on-roblox-with-free-boombox_GM431946152.pdfIn PDF document text
    • http://lib.stiesultanagung.ac.id/repository/innovation-roblox-hack_GM431946152.pdfIn PDF document text
    • http://lib.stiesultanagung.ac.id/repository/roblox-sexually-abused_GM431946152.pdfIn PDF document text
    • http://lib.stiesultanagung.ac.id/repository/completed-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
font_00_sfnt_off000030e1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30E1 23072 bytes
SHA-256: d944c0d1232f574eb76e5ac1e5ba90eabba58bafa09317aebcfee56e69d14cd3
font_01_sfnt_off00006506.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6506 18984 bytes
SHA-256: b02f235e187ca63825268846ce24859b9c73d6f06522f0e44481555b58ecada8

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