Malicious PDF — malware analysis report

Static analysis result for SHA-256 07722c9bbb8906de…

MALICIOUS

PDF

33.7 KB Created: 2021-07-05 07:25:03 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: a4cd41f42bef260c38f66056abb7ed9f SHA-1: 887484371a88c7da79af962e9017e8f054661625 SHA-256: 07722c9bbb8906de7c303a4d1e7653603348a84ac5f87c64bb4a3452e4e96a08
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-free-spins-app-game-hack PDF link annotation
    • http://elearning.man1sintang.sch.id/__statics/gudangsoal/files/coin-master-admin-free-spins_GM406889139.pdfIn PDF document text
    • http://elearning.man1sintang.sch.id/__statics/gudangsoal/files/coin-master-daily-free-cards_GM406889139.pdfIn PDF document text
    • http://elearning.man1sintang.sch.id/__statics/gudangsoal/files/roblox-promocode-hack-robux-pastebin_GM431946152.pdfIn PDF document text
    • http://elearning.man1sintang.sch.id/__statics/gudangsoal/files/free-robux-generator-no-human-verification_GM431946152.pdfIn PDF document text
    • http://elearning.man1sintang.sch.id/__statics/gudangsoal/files/coin-master-free-attack_GM406889139.pdfIn PDF document text
    • http://elearning.man1sintang.sch.id/__statics/gudangsoal/files/roblox-free-hats-hack_GM431946152.pdfIn PDF document text
    • http://elearning.man1sintang.sch.id/__statics/gudangsoal/files/coin-master-hack-apk-link_GM406889139.pdfIn PDF document text
    • http://elearning.man1sintang.sch.id/__statics/gudangsoal/files/roblox-noob-t-shirt-free_GM431946152.pdfIn PDF document text
    • http://elearning.man1sintang.sch.id/__statics/gudangsoal/files/cheat-bar-codes-for-roblox_GM431946152.pdfIn PDF document text
    • http://elearning.man1sintang.sch.id/__statics/gudangsoal/files/how-to-get-stuff-that-cost-coins-free-mpe-master_GM406889139.pdfIn PDF document text
    • http://elearning.man1sintang.sch.id/__statics/gudangsoal/files/roblox-online-free-unblocked_GM431946152.pdfIn PDF document text
    • http://elearning.man1sintang.sch.id/__statics/gudangsoal/files/coin-master-hack-tool-pc_GM406889139.pdfIn PDF document text
    • http://elearning.man1sintang.sch.id/__statics/gudangsoal/files/toolbox-for-mcpe_GM479516143.pdfIn PDF document text
    • http://elearning.man1sintang.sch.id/__statics/gudangsoal/files/bullet-hell-roblox-hack_GM431946152.pdfIn PDF document text
    • http://elearning.man1sintang.sch.id/__statics/gudangsoal/files/minecraft-diamond-finder-hack_GM479516143.pdfIn PDF document text
    • http://elearning.man1sintang.sch.id/__statics/gudangsoal/files/how-to-use-redstone_GM479516143.pdfIn PDF document text
    • http://elearning.man1sintang.sch.id/__statics/gudangsoal/files/master-coin-free_GM406889139.pdfIn PDF document text
    • http://elearning.man1sintang.sch.id/__statics/gudangsoal/files/coin-master-free-spins-hack_GM406889139.pdfIn PDF document text
    • http://elearning.man1sintang.sch.id/__statics/gudangsoal/files/was-minecraft-ever-free_GM479516143.pdfIn PDF document text
    • http://elearning.man1sintang.sch.id/__statics/gudangsoal/files/free-robux-obby-august-2021_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_off00002fde.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FDE 22244 bytes
SHA-256: 784aa77eb7eb799953d1443430700e157f86388879bbb612c96f35786efe9639
font_01_sfnt_off00006159.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6159 18176 bytes
SHA-256: 4f2c7f50c50d911764fc5880fa9a71240a98bde4d6a03cad0f4e23413d6df79f

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