Malicious PDF — malware analysis report

Static analysis result for SHA-256 970ff4848385891a…

MALICIOUS

PDF

34.8 KB Created: 2021-07-06 12:55:46 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 4ddce63943722240f6d4d88be8d376aa SHA-1: 129f95ea714bdf463478da6b23d2421474167bdc SHA-256: 970ff4848385891a3accc0cabd5573953b55ee700e20467087cec8a6ecaccb15
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/479516143/how-to-get-minecraft-java-free-game-hack PDF link annotation
    • http://perpustakaan.ftk.uinib.ac.id/repository/roblox-heroes-online-free_GM431946152.pdfIn PDF document text
    • http://perpustakaan.ftk.uinib.ac.id//repository/get-free-spins-from-coin-master_GM406889139.pdfIn PDF document text
    • http://perpustakaan.ftk.uinib.ac.id/repository/roblox-bloxburg-cheats_GM431946152.pdfIn PDF document text
    • http://perpustakaan.ftk.uinib.ac.id/repository/how-to-get-free-robux-by-playing-games_GM431946152.pdfIn PDF document text
    • http://perpustakaan.ftk.uinib.ac.id/repository/free-robux-hack-on-pc-2021_GM431946152.pdfIn PDF document text
    • http://perpustakaan.ftk.uinib.ac.id/repository/coin-master-hack-apk-35-33_GM406889139.pdfIn PDF document text
    • http://perpustakaan.ftk.uinib.ac.id/repository/roblox-hack-lua_GM431946152.pdfIn PDF document text
    • http://perpustakaan.ftk.uinib.ac.id/repository/minecraft-education-edition-free_GM479516143.pdfIn PDF document text
    • http://perpustakaan.ftk.uinib.ac.id//repository/pubg-uc-2021-free_GM1330123889.pdfIn PDF document text
    • http://perpustakaan.ftk.uinib.ac.id/repository/coin-master-daily-free-spins-link-today-blogspot_GM406889139.pdfIn PDF document text
    • http://perpustakaan.ftk.uinib.ac.id/repository/free-robux-by-playing-games_GM431946152.pdfIn PDF document text
    • http://perpustakaan.ftk.uinib.ac.id/repository/how-to-get-free-gamepasses-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://perpustakaan.ftk.uinib.ac.id//repository/pubg-74-uc_GM1330123889.pdfIn PDF document text
    • http://perpustakaan.ftk.uinib.ac.id//repository/hey-google-how-do-you-get-free-robux_GM431946152.pdfIn PDF document text
    • http://perpustakaan.ftk.uinib.ac.id//repository/coin-master-free-daily-spins-link-2021_GM406889139.pdfIn PDF document text
    • http://perpustakaan.ftk.uinib.ac.id/repository/free-robux-202199_GM431946152.pdfIn PDF document text
    • http://perpustakaan.ftk.uinib.ac.id/repository/roblox-blox-no-hero-academia-quirk-hack_GM431946152.pdfIn PDF document text
    • http://perpustakaan.ftk.uinib.ac.id/repository/roblox-team-change-script-pastebin-hacking_GM431946152.pdfIn PDF document text
    • http://perpustakaan.ftk.uinib.ac.id//repository/coin-master-hack-apk-april-12-2021_GM406889139.pdfIn PDF document text
    • http://perpustakaan.ftk.uinib.ac.id/repository/how-to-get-free-robux-easy-2021-no-human-verification_GM431946152.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_off00003253.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3253 22808 bytes
SHA-256: 5581dac79aafccc8081c557d5ae67c96d283af90b10eb47be72089e19a4a2531
font_01_sfnt_off000064c4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64C4 18444 bytes
SHA-256: ee0fd3b8161b5983970ad4bc3604837358645b2154b845f85ded903745611adb

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