Malicious PDF — malware analysis report

Static analysis result for SHA-256 2a30f53cd615199a…

MALICIOUS

PDF

46.3 KB Created: 2021-06-03 10:13:50 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: e4505fd65e9ab4db28e26af5b1bfb1f4 SHA-1: f33e55c5ece4f9033a030430129b5c85d40c9fbe SHA-256: 2a30f53cd615199a4574e3b08989d9283ceff186306a65963a4a65cc6d89d8aa
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links that redirect to malicious infrastructure, specifically advertising free game currency or hacks. The primary malicious URL identified is https://netcdn.online/app/431946152/www-robux-us-game-hack. The document body and embedded URLs suggest a lure for users interested in obtaining in-game items, likely leading to phishing or malware download sites. No scripts were extracted, but the presence of malicious redirectors and the ML classification strongly indicate malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9748

Heuristics 4

  • 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.
  • 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.online/app/431946152/www-robux-us-game-hack In PDF document text
    • http://slims.abulyatama.ac.id//repository/free-robux-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/how-to-get-minecraft-for-free-on-iphone_GM479516143.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/mcpe-master-unlimited-coins-hack-apk_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/coin-master-fan_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/free-robux-easy_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/get-free-coins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/free-robux-accounts-2021_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/flame-gg-free-robux_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/robux-free-robux_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/minecraft-pe-hack-client_GM479516143.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/hack-coin-master-online_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/how-to-get-free-robux-for-kids_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/daily-coin-master_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/free-tiktok-followers-no-human-verification-or-survey_GM835599320.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/coin-master-free-gift-cards_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/hack-xp-net-coin-master_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/coinmaster-rewards_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/free-spin-coin-master-instagram_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/coin-master-links-2021_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/free-fire-coin-master_GM406889139.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_004_off00004e88.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4E88 25048 bytes
SHA-256: 35ed792838ec777a3d1d97eb714ba5cbfbff605ee265594e1189f5f2b0938cf8
font_01_sfnt_off000087ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x87AC 2828 bytes
SHA-256: a4e15770ab3b920ccbab17816ac2be280610f3f789d7654b00721cdcc5d65b79
font_02_sfnt_off00009161.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9161 18396 bytes
SHA-256: 4c9ea76a60f642c5a6e903a615e24166436faf8ac63ffb5558478067c155318c

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