Malicious PDF — malware analysis report

Static analysis result for SHA-256 2152d28f2bd5726a…

MALICIOUS

PDF

35.0 KB Created: 2021-07-01 21:53:20 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 00f35ea5cf34ca1b5860206b0a2ced67 SHA-1: bfa8504f361508ab74cb047d1d451b4632aefdef SHA-256: 2152d28f2bd5726a240f6067784db89c5e6c19047fb0bf9568d297c9bc31a9dd
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.co/app/431946152/cheat-roblox-ro-ghoul-game-hack PDF link annotation
    • http://otomasi.stikesmuhgombong.ac.id/repository/will-minecraft-dungeons-be-free_GM479516143.pdfIn PDF document text
    • http://otomasi.stikesmuhgombong.ac.id//repository/coin-master-hack-download-android_GM406889139.pdfIn PDF document text
    • http://otomasi.stikesmuhgombong.ac.id/repository/roblox-hack-menus_GM431946152.pdfIn PDF document text
    • http://otomasi.stikesmuhgombong.ac.id/repository/spin-links-for-coin-master_GM406889139.pdfIn PDF document text
    • http://otomasi.stikesmuhgombong.ac.id//repository/coin-master-hack-fast-org_GM406889139.pdfIn PDF document text
    • http://otomasi.stikesmuhgombong.ac.id/repository/coin-master-coins-free_GM406889139.pdfIn PDF document text
    • http://otomasi.stikesmuhgombong.ac.id/repository/robux-best_GM431946152.pdfIn PDF document text
    • http://otomasi.stikesmuhgombong.ac.id//repository/coin-master-free-spins-iphone-2021_GM406889139.pdfIn PDF document text
    • http://otomasi.stikesmuhgombong.ac.id/repository/uirbx-club-free-robux-generator_GM431946152.pdfIn PDF document text
    • http://otomasi.stikesmuhgombong.ac.id/repository/roblox-free-items_GM431946152.pdfIn PDF document text
    • http://otomasi.stikesmuhgombong.ac.id/repository/minecraft-hack-mod_GM479516143.pdfIn PDF document text
    • http://otomasi.stikesmuhgombong.ac.id/repository/how-do-you-get-free-roblox-2021_GM431946152.pdfIn PDF document text
    • http://otomasi.stikesmuhgombong.ac.id//repository/how-to-get-free-spins-and-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://otomasi.stikesmuhgombong.ac.id/repository/free-robux-reel_GM431946152.pdfIn PDF document text
    • http://otomasi.stikesmuhgombong.ac.id/repository/coin-master-heaven-free-spins_GM406889139.pdfIn PDF document text
    • http://otomasi.stikesmuhgombong.ac.id//repository/free-roblox-avatar_GM431946152.pdfIn PDF document text
    • http://otomasi.stikesmuhgombong.ac.id/repository/how-to-get-free-robux-joshy_GM431946152.pdfIn PDF document text
    • http://otomasi.stikesmuhgombong.ac.id//repository/coin-master-free-spins-2021-hack_GM406889139.pdfIn PDF document text
    • http://otomasi.stikesmuhgombong.ac.id/repository/free-robux-group_GM431946152.pdfIn PDF document text
    • http://otomasi.stikesmuhgombong.ac.id/repository/roblox-generator-with-verification-thats-down-loading-free_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_off0000322c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x322C 22416 bytes
SHA-256: 5c3987263cc43a657cbc125a5a6d0e9544bbc4f1fd00773d7b7ab0446723e679
font_01_sfnt_off00006430.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6430 18896 bytes
SHA-256: 624e12eaeb02662673ac13be1326d2e74c1ad0fa4a7338d866d852e8bd7b82ce

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