Malicious PDF — malware analysis report

Static analysis result for SHA-256 aa82d07d55c89feb…

MALICIOUS

PDF

45.2 KB Created: 2021-05-11 07:43:19 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-06
MD5: 5181700ad58298ba5e4fc05bf1f87953 SHA-1: 597feb64af391eaf85888948cf534b73e0d6f9ea SHA-256: aa82d07d55c89febdba08c6053179cc1140400b8bbb63e8770a545e55314abc2
220 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9621

Heuristics 5

  • PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Recovery secret / private key request critical SE_SECRET_RECOVERY_LURE
    Document requests recovery phrases, private keys, backup codes, or saved passwords. Requests for these secrets in a document are high-risk.
  • 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
  • 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 https://netcdn.xyz/app/406889139/is-there-an-actual-hack-that-work-for-coin-master-game-hack In PDF document text
    • http://pustaka.faterna.unand.ac.id/repository/hacked-client-for-minecraft-bedrock_GM479516143.pdfIn PDF document text
    • http://pustaka.faterna.unand.ac.id/repository/minecraft-bedrock-free-download_GM479516143.pdfIn PDF document text
    • http://pustaka.faterna.unand.ac.id/repository/coin-master-free-spin-daily-link_GM406889139.pdfIn PDF document text
    • http://pustaka.faterna.unand.ac.id/repository/coin-master-hack-tool-v1-9-apk_GM406889139.pdfIn PDF document text
    • http://pustaka.faterna.unand.ac.id/repository/hack-coin-master-no-survey_GM406889139.pdfIn PDF document text
    • http://pustaka.faterna.unand.ac.id/repository/wwwhaktutsin-2021-08-coinmasterfreespinandcoinlinkhtml-m-1_GM406889139.pdfIn PDF document text
    • http://pustaka.faterna.unand.ac.id/repository/how-to-get-free-robux-without-email_GM431946152.pdfIn PDF document text
    • http://pustaka.faterna.unand.ac.id/repository/free-download-coin-master_GM406889139.pdfIn PDF document text
    • http://pustaka.faterna.unand.ac.id/repository/cm-daily-spins_GM406889139.pdfIn PDF document text
    • http://pustaka.faterna.unand.ac.id/repository/coin-master-free-spins-and-coins-daily_GM406889139.pdfIn PDF document text
    • http://pustaka.faterna.unand.ac.id/repository/free-roblox-codes-2021_GM431946152.pdfIn PDF document text
    • http://pustaka.faterna.unand.ac.id/repository/roblox-account-taker_GM431946152.pdfIn PDF document text
    • http://pustaka.faterna.unand.ac.id/repository/rare-free-links-to-coin-master_GM406889139.pdfIn PDF document text
    • http://pustaka.faterna.unand.ac.id/repository/roblox-robux_GM431946152.pdfIn PDF document text
    • http://pustaka.faterna.unand.ac.id/repository/minecraft-hax-download-no-virus_GM479516143.pdfIn PDF document text
    • http://pustaka.faterna.unand.ac.id/repository/free-robux-wheel_GM431946152.pdfIn PDF document text
    • http://pustaka.faterna.unand.ac.id/repository/how-to-get-free-robux-on-phone-2021_GM431946152.pdfIn PDF document text
    • http://pustaka.faterna.unand.ac.id/repository/coin-master-hack-2021-ios-download_GM406889139.pdfIn PDF document text
    • http://pustaka.faterna.unand.ac.id/repository/coin-master-unlimited-spin-and-coin-hack_GM406889139.pdfIn PDF document text
    • http://pustaka.faterna.unand.ac.id/repository/how-to-get-free-robux-app_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004c01.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4C01 24536 bytes
SHA-256: a12ba8aa21f35baf76196310f37e01891a2f0ffdc5d40df61293346d02fff255
font_01_sfnt_off00008449.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8449 2840 bytes
SHA-256: 3fb127b764b9d10f5525bc4de5ec8316de704409ccb0cf21cff3ad8a30d11676
font_02_sfnt_off00008dfb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8DFB 18456 bytes
SHA-256: bed13626877a0479f5b218bc593022c79e42e39e8abaa33427fbbcb33d21847a

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