Malicious PDF — malware analysis report

Static analysis result for SHA-256 624e1aac7d180bdc…

MALICIOUS

PDF

43.9 KB Created: 2021-06-14 01:08:38 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-05-29
MD5: 995263bb40f2751f6af83468468d8156 SHA-1: ab623a99e7d83418d49036e6e4cc41d7f1102169 SHA-256: 624e1aac7d180bdc839d22de255b07b074ce84c3d51db42ff3e37b8c35e27458
160 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

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 http://netcdn.co/app/431946152/roblox-robux-genarator-no-hack-2021-game-hack In PDF document text
    • https://pustaka.stie-pembangunan.ac.id/repository/pubg-uc-2021-online_GM1330123889.pdfIn PDF document text
    • https://pustaka.stie-pembangunan.ac.id/repository/how-to-get-free-skins-in-roblox_GM431946152.pdfIn PDF document text
    • https://pustaka.stie-pembangunan.ac.id/repository/free-outfit-from-roblox_GM431946152.pdfIn PDF document text
    • https://pustaka.stie-pembangunan.ac.id/repository/feb-23-2021-free-coin-master-spins_GM406889139.pdfIn PDF document text
    • https://pustaka.stie-pembangunan.ac.id/repository/coin-master-free-spins-link-2021-no-verification-deutsch_GM406889139.pdfIn PDF document text
    • https://pustaka.stie-pembangunan.ac.id/repository/roblox-free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • https://pustaka.stie-pembangunan.ac.id/repository/roblox-no-download-hack_GM431946152.pdfIn PDF document text
    • https://pustaka.stie-pembangunan.ac.id/repository/what-is-coin-master-app_GM406889139.pdfIn PDF document text
    • https://pustaka.stie-pembangunan.ac.id/repository/who-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://pustaka.stie-pembangunan.ac.id/repository/coin-master-claim-free-spins_GM406889139.pdfIn PDF document text
    • https://pustaka.stie-pembangunan.ac.id/repository/free-roblox-gift-card_GM431946152.pdfIn PDF document text
    • https://pustaka.stie-pembangunan.ac.id/repository/coin-master-hack-no-verify_GM406889139.pdfIn PDF document text
    • https://pustaka.stie-pembangunan.ac.id/repository/minecraft-hack-client-18-9_GM479516143.pdfIn PDF document text
    • https://pustaka.stie-pembangunan.ac.id/repository/roblox-re_GM431946152.pdfIn PDF document text
    • https://pustaka.stie-pembangunan.ac.id/repository/coin-master-game-hacking-tricks_GM406889139.pdfIn PDF document text
    • https://pustaka.stie-pembangunan.ac.id/repository/coin-master-tool-hack_GM406889139.pdfIn PDF document text
    • https://pustaka.stie-pembangunan.ac.id/repository/roblox-one-piece-devil-fruit-hack_GM431946152.pdfIn PDF document text
    • https://pustaka.stie-pembangunan.ac.id/repository/cheats-for-coin-master_GM406889139.pdfIn PDF document text
    • https://pustaka.stie-pembangunan.ac.id/repository/hacks-for-coin-master_GM406889139.pdfIn PDF document text
    • https://pustaka.stie-pembangunan.ac.id/repository/wurst-client-download_GM479516143.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 6

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004cbf.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4CBF 25408 bytes
SHA-256: c98c70afd358640b33950607ef981926c41bf6cb630b82c2a3da331fb70749b0
font_01_sfnt_off00008788.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8788 18828 bytes
SHA-256: d36260784bf487197d465decc84c540205d3ba70925210c63368ae71047c1693

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