Malicious PDF — malware analysis report

Static analysis result for SHA-256 8888486afdd7dc25…

MALICIOUS

PDF

32.7 KB Created: 2021-07-09 05:01:13 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 884d58480cf056f00543add3b3450fd4 SHA-1: c1099173fbcde09aee40ab9f3d841fc1038645ea SHA-256: 8888486afdd7dc251d57d34edb2e5ef3ab16a5392a3f5a015eb273b701191f71
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a prominent link disguised as a game hack generator for Pokemon Go. This lure, combined with the ML classifier flagging the PDF as malicious, strongly suggests a phishing or scam attempt. The embedded URL likely leads to a site designed to exploit user interest in free in-game items, potentially for credential harvesting or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9824

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/1094591345/pokemon-go-free-pokeballs-2021-game-hack PDF link annotation
    • http://opac.disarpus.surakarta.go.id/repository/how-to-get-free-robux-dis_GM431946152.pdfIn PDF document text
    • http://opac.disarpus.surakarta.go.id/repository/how-do-you-install-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://opac.disarpus.surakarta.go.id/repository/free-robux-gift-card_GM431946152.pdfIn PDF document text
    • http://opac.disarpus.surakarta.go.id/repository/hack-roblox-admin_GM431946152.pdfIn PDF document text
    • http://opac.disarpus.surakarta.go.id/repository/free-spin-gratis-coin-master_GM406889139.pdfIn PDF document text
    • http://opac.disarpus.surakarta.go.id/repository/coin-master-free-coins-and-spins-link-2021_GM406889139.pdfIn PDF document text
    • http://opac.disarpus.surakarta.go.id/repository/roblox-cheat-discord_GM431946152.pdfIn PDF document text
    • http://opac.disarpus.surakarta.go.id/repository/for-free-drake-roblox-id_GM431946152.pdfIn PDF document text
    • http://opac.disarpus.surakarta.go.id/repository/minecraft-free-online-games_GM479516143.pdfIn PDF document text
    • http://opac.disarpus.surakarta.go.id/repository/free-robux-generator-no-survey_GM431946152.pdfIn PDF document text
    • http://opac.disarpus.surakarta.go.id/repository/microsoft-free-robux_GM431946152.pdfIn PDF document text
    • http://opac.disarpus.surakarta.go.id/repository/free-robux-generator-without-human-verification_GM431946152.pdfIn PDF document text
    • http://opac.disarpus.surakarta.go.id/repository/paste-bin-free-robux-no-wait_GM431946152.pdfIn PDF document text
    • http://opac.disarpus.surakarta.go.id/repository/how-to-get-free-robux-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://opac.disarpus.surakarta.go.id/repository/gainblox-gg-free-robux-generator_GM431946152.pdfIn PDF document text
    • http://opac.disarpus.surakarta.go.id/repository/roblox-da-hood-hack-script_GM431946152.pdfIn PDF document text
    • http://opac.disarpus.surakarta.go.id/repository/hacker-commands-for-roblox_GM431946152.pdfIn PDF document text
    • http://opac.disarpus.surakarta.go.id/repository/free-robux-generator_GM431946152.pdfIn PDF document text
    • http://opac.disarpus.surakarta.go.id/repository/free-printable-roblox-birthday-invitations_GM431946152.pdfIn PDF document text
    • http://opac.disarpus.surakarta.go.id/repository/roblox-robux-hacks-com-online_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_off0000297f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x297F 22396 bytes
SHA-256: 7b9b228c4f077100934b5a7af065c0b95c30f01c29e7186e10213eb691d321cf
font_01_sfnt_off00005b2c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5B2C 18992 bytes
SHA-256: 503ca464ad12d39211f4b03e2daf18a2c4352d4f2907f74d4355ac1af7844ef3

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