Malicious PDF — malware analysis report

Static analysis result for SHA-256 600a2b25e771e905…

MALICIOUS

PDF

47.5 KB Created: 2021-06-03 12:02:20 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-02
MD5: e1c56f5108eac94be0be234e6be3b32e SHA-1: 8cc67f496623a6d289277c5132cdc032dd98f801 SHA-256: 600a2b25e771e9054bb783db4088cecb3e1862c7e8ccd5f52a46f58a4057d967
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 0.9769

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 https://netcdn.online/app/431946152/free-robux-gift-card-game-hack PDF link annotation
    • http://www.perpustakaan.smansa-bdl.sch.id/repository/how-to-hack-roblox-accounts_GM431946152.pdfIn PDF document text
    • http://www.perpustakaan.smansa-bdl.sch.id/repository/free-minecraft-alt-generator_GM479516143.pdfIn PDF document text
    • http://www.perpustakaan.smansa-bdl.sch.id/repository/free-coins-and-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://www.perpustakaan.smansa-bdl.sch.id/repository/tiktok-free-view-59_GM835599320.pdfIn PDF document text
    • http://www.perpustakaan.smansa-bdl.sch.id//repository/coin-master-spin-free_GM406889139.pdfIn PDF document text
    • http://www.perpustakaan.smansa-bdl.sch.id/repository/unlimited-spin-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://www.perpustakaan.smansa-bdl.sch.id//repository/roblox-robux-hack_GM431946152.pdfIn PDF document text
    • http://www.perpustakaan.smansa-bdl.sch.id/repository/free-robux-codes-no-human-verification_GM431946152.pdfIn PDF document text
    • http://www.perpustakaan.smansa-bdl.sch.id//repository/coin-master-pc-game-free-download_GM406889139.pdfIn PDF document text
    • http://www.perpustakaan.smansa-bdl.sch.id//repository/roblox-person_GM431946152.pdfIn PDF document text
    • http://www.perpustakaan.smansa-bdl.sch.id/repository/coin-master-hack-that-actually-works_GM406889139.pdfIn PDF document text
    • http://www.perpustakaan.smansa-bdl.sch.id//repository/150-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://www.perpustakaan.smansa-bdl.sch.id//repository/mcpe-hack-client_GM479516143.pdfIn PDF document text
    • http://www.perpustakaan.smansa-bdl.sch.id//repository/free-coin-master-spin-generator_GM406889139.pdfIn PDF document text
    • http://www.perpustakaan.smansa-bdl.sch.id//repository/mangocheats-com-hack-coin-master-cheat_GM406889139.pdfIn PDF document text
    • http://www.perpustakaan.smansa-bdl.sch.id/repository/coin-master-free-spins-link-blogspot-today_GM406889139.pdfIn PDF document text
    • http://www.perpustakaan.smansa-bdl.sch.id/repository/how-to-get-free-robux-easy-hack_GM431946152.pdfIn PDF document text
    • http://www.perpustakaan.smansa-bdl.sch.id//repository/coin-master-unlimited-spins-hack_GM406889139.pdfIn PDF document text
    • http://www.perpustakaan.smansa-bdl.sch.id/repository/roblox36com-free-robux_GM431946152.pdfIn PDF document text
    • http://www.perpustakaan.smansa-bdl.sch.id/repository/coin-master-hacks-that-work_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off0000521c.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x521C 25060 bytes
SHA-256: 7a747e1dcf953ff63f0324bfe1786604aae171e59c1d7431c47a6ecb44d132b1
font_01_sfnt_off00008b9b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8B9B 2880 bytes
SHA-256: b053084cafd01c649462d87667ba56c569d6480ce60e7d20ae57ef6124cf178e
font_02_sfnt_off00009586.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9586 18640 bytes
SHA-256: 59f1432744b9d8cf879cb7c8a299bbbbba85d5427cd565107f85277265ec050e

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