Malicious PDF — malware analysis report

Static analysis result for SHA-256 4a0d7a5990e9c47f…

MALICIOUS

PDF

36.2 KB Created: 2021-07-04 19:08:11 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: b25dc540889af39278c9ddc843e036ea SHA-1: 6c337840b4d25a411ce77db9a6933b49643a4fe3 SHA-256: 4a0d7a5990e9c47f41f3cf46bb696c7a4de29132e52469a3a14cfa25d97ef613
82 Risk Score

Malware Insights

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

The PDF document contains embedded URLs and a heuristic firing indicating it's a game hack redirect lure. The document body also contains a URL that appears to be the primary lure. This suggests the document is designed to trick users into visiting a malicious website, likely for further exploitation or to download malware.

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-hack-xyz-download-free-game-hack PDF link annotation
    • http://abdinusababellibrary.ac.id//repository/free-coin-master-game_GM406889139.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id//repository/minecraft-games-online-free-no-download_GM479516143.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id/repository/people-who-hacked-roblox-and-got-unlmitited-robux_GM431946152.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id/repository/comment-avoir-2021-kills-cheat-sur-knife-ability-test-roblox_GM431946152.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id/repository/free-roblox-boombox-script_GM431946152.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id//repository/real-free-robux-codes_GM431946152.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id/repository/free-cartoon-maker-online-roblox_GM431946152.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id//repository/free-minecraft-accounts-2021_GM479516143.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id/repository/tweakbox-roblox-hack_GM431946152.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id/repository/get-free-followers-on-tiktok_GM835599320.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id//repository/daily-coin-master-free-spin-link_GM406889139.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id/repository/free-robux-legit-works_GM431946152.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id/repository/how-to-get-clothes-for-free-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id//repository/abd-roblox_GM431946152.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id//repository/how-to-get-free-robux-hack_GM431946152.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id/repository/how-to-hack-minigame-testing-place-on-roblox_GM431946152.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id//repository/mcpe-master-free-coins_GM406889139.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id/repository/how-to-get-free-tiktok-followers-no-human-verification_GM835599320.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id/repository/free-robux-inspect-code_GM431946152.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id/repository/free-minecraft-website_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
font_00_sfnt_off000033c1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x33C1 23144 bytes
SHA-256: 395bf7b71a974fef2a33d7ddbfecfa9d1dd554ae1f8f98c5b7c09a07ab19d566
font_01_sfnt_off000067f0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x67F0 19236 bytes
SHA-256: 40a95bac7efeedd056b1a9645696afbc74576a07b4b2fccba56c2b98aaafc7f4

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