Malicious PDF — malware analysis report

Static analysis result for SHA-256 de0b6bc967ea47da…

MALICIOUS

PDF

35.5 KB Created: 2021-07-04 12:22:25 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-07
MD5: be622192679038f56a08364ac90a1c80 SHA-1: 7f993ff5abc9e5584451bdf0b36564976ca8689c SHA-256: de0b6bc967ea47da2549e6c2f2f72a60803ce008a5b222731942806e137c838e
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains multiple embedded links, with a primary URL pointing to a site offering game hacks and free spins. This lure is designed to trick users into visiting a potentially malicious website. The ML classifier also strongly indicated maliciousness, supporting the conclusion that this document is part of a phishing or scam campaign.

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-links-free-spins-game-hack PDF link annotation
    • http://www.pustaka.pn-calang.go.id/repository/free-spin-coin_GM406889139.pdfIn PDF document text
    • http://pustaka.pn-calang.go.id/repository/roblox-adopt-me-hack-script-pastebin-money-2021_GM431946152.pdfIn PDF document text
    • http://pustaka.pn-calang.go.id/repository/why-isnt-robux-for-free_GM431946152.pdfIn PDF document text
    • http://www.pustaka.pn-calang.go.id/repository/is-there-any-way-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://pustaka.pn-calang.go.id/repository/free-roblox-toy-redemption-codes_GM431946152.pdfIn PDF document text
    • http://www.pustaka.pn-calang.go.id/repository/minecraft-windows-10-hacks_GM479516143.pdfIn PDF document text
    • http://www.pustaka.pn-calang.go.id/repository/minecraft-multiplayer-free_GM479516143.pdfIn PDF document text
    • http://www.pustaka.pn-calang.go.id/repository/how-to-hack-coin-master-spin-in-hindi_GM406889139.pdfIn PDF document text
    • http://www.pustaka.pn-calang.go.id/repository/how-to-make-a-minecraft-server-for-free-java_GM479516143.pdfIn PDF document text
    • http://pustaka.pn-calang.go.id/repository/roblox-adim-hacks_GM431946152.pdfIn PDF document text
    • http://pustaka.pn-calang.go.id/repository/minecraft-java-edition-download-free_GM479516143.pdfIn PDF document text
    • http://www.pustaka.pn-calang.go.id/repository/best-minecraft-hacked-client_GM479516143.pdfIn PDF document text
    • http://pustaka.pn-calang.go.id/repository/roblox-hotline-miami-hacked_GM431946152.pdfIn PDF document text
    • http://pustaka.pn-calang.go.id/repository/roblox-hack-client-for-money_GM431946152.pdfIn PDF document text
    • http://www.pustaka.pn-calang.go.id/repository/hack-roblox-magnet-simulator_GM431946152.pdfIn PDF document text
    • http://pustaka.pn-calang.go.id/repository/free-robux-no-human-verification-no-survey-no-offers_GM431946152.pdfIn PDF document text
    • http://www.pustaka.pn-calang.go.id/repository/how-to-hack-coin-master-game-without-verification_GM406889139.pdfIn PDF document text
    • http://pustaka.pn-calang.go.id/repository/free-robux-no-scam-no-survey-2021_GM431946152.pdfIn PDF document text
    • http://www.pustaka.pn-calang.go.id/repository/coin-master-free-gold-cards-link-2021_GM406889139.pdfIn PDF document text
    • http://pustaka.pn-calang.go.id/repository/how-do-you-get-minecraft-for-free_GM479516143.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
stream_002_off000032ae.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x32AE 23424 bytes
SHA-256: b24f1245dd20b93e3bfd591416aca8e8e4fd973d801d2732bdc5884f144a2e0e
font_01_sfnt_off000067ca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x67CA 18344 bytes
SHA-256: 6ad1108e81c5525844192ddb13ab38111abd218b87fc7994796a13e0178d8bfd