Malicious PDF — malware analysis report

Static analysis result for SHA-256 84c0f1e0b96077d8…

MALICIOUS

PDF

35.7 KB Created: 2021-07-06 05:03:17 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: e098501b6b55cda9375d5754dcba7f95 SHA-1: f2c104c235d7b69218d5ce14ff36cc1b7d8f2c8b SHA-256: 84c0f1e0b96077d808e5fbb90434c5fc01ea1f0c3aec5a460350324435e2cc74
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/minecraft-tower-defense-hacked-game-hack PDF link annotation
    • http://pustaka.bbppketindan.info/repository/coin-master-hack-no-verification_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/how-to-cheat-in-roblox-booga-booga_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/how-to-get-free-roblox-clothes-2021_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/pubg-uc-free_GM1330123889.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/roblox-noclip-hacks_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/free-robux-no-human-verification-2021-or-survey-generator_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/free-robux-just-click_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/how-does-roblox-gg-hack-your-acc_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/give-your-self-money-in-games-roblox-hack_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/free-roblox-hack-download-2021_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/impact-hack-roblox-hp_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/coin-master-free-coins-link_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/free-roblox-vpn_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/coin-master-100-free-spins-link_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/como-sacar-buen-puntaje-en-juego-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/free-robux-no-reward-zone-or-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/robux-gainer_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/coin-master-free-coins-links-2021_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/hacker-groups-in-roblox_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/free-spin-codes-coin-master_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_off0000345b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x345B 22940 bytes
SHA-256: 65288cc01e361d8383541e8bb7699e013bdb4ac4d39986695d13c60e225dd288
font_01_sfnt_off000067fe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x67FE 18672 bytes
SHA-256: 8ef55fb4d9ba038590cd99f97770fa3f244966affa92085fda601291346fb9e1

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