Malicious PDF — malware analysis report

Static analysis result for SHA-256 609b20b188fd680e…

MALICIOUS

PDF

45.0 KB Created: 2021-05-17 01:55:26 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 463bd7be01796f2d877962b50ec4a7c3 SHA-1: d43a85f6cce9bf8300eb088cbbce217d07079c3e SHA-256: 609b20b188fd680e1f5f036773b50013c812d12913e6b474304910a3180f29f3
160 Risk Score

Malware Insights

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

The PDF document contains multiple embedded links that redirect to websites offering game hacks and modded applications, such as Coin Master and Roblox. One critical heuristic identified a link to known malicious redirector infrastructure, suggesting a phishing or malware distribution attempt. The document body and heuristics indicate a lure for users seeking free in-game currency or cheats.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9632

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.xyz/app/406889139/coin-master-mod-apk-free-download-game-hack In PDF document text
    • https://elearning.mtsnegeri1mojokerto.sch.id/__statics/gudangsoal/files/minecraft-free-online_GM479516143.pdfIn PDF document text
    • https://elearning.mtsnegeri1mojokerto.sch.id/__statics/gudangsoal/files/links-to-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://elearning.mtsnegeri1mojokerto.sch.id/__statics/gudangsoal/files/coin-master-free-spons-apk-2021_GM406889139.pdfIn PDF document text
    • https://elearning.mtsnegeri1mojokerto.sch.id/__statics/gudangsoal/files/free-spins-for-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://elearning.mtsnegeri1mojokerto.sch.id/__statics/gudangsoal/files/roblox-hack-app_GM431946152.pdfIn PDF document text
    • https://elearning.mtsnegeri1mojokerto.sch.id/__statics/gudangsoal/files/make-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning.mtsnegeri1mojokerto.sch.id/__statics/gudangsoal/files/roblox-games-com-free_GM431946152.pdfIn PDF document text
    • https://elearning.mtsnegeri1mojokerto.sch.id/__statics/gudangsoal/files/roblox-fun-com-robux_GM431946152.pdfIn PDF document text
    • https://elearning.mtsnegeri1mojokerto.sch.id/__statics/gudangsoal/files/coin-master-hack-ios-download-2021_GM406889139.pdfIn PDF document text
    • https://elearning.mtsnegeri1mojokerto.sch.id/__statics/gudangsoal/files/how-to-hack-to-get-robux_GM431946152.pdfIn PDF document text
    • https://elearning.mtsnegeri1mojokerto.sch.id/__statics/gudangsoal/files/how-to-make-a-modded-minecraft-server-for-free_GM479516143.pdfIn PDF document text
    • https://elearning.mtsnegeri1mojokerto.sch.id/__statics/gudangsoal/files/free-robux-hacker-us_GM431946152.pdfIn PDF document text
    • https://elearning.mtsnegeri1mojokerto.sch.id/__statics/gudangsoal/files/coin-master-free-spin-link-daily_GM406889139.pdfIn PDF document text
    • https://elearning.mtsnegeri1mojokerto.sch.id/__statics/gudangsoal/files/coin-master-free-spins-2-5-2021_GM406889139.pdfIn PDF document text
    • https://elearning.mtsnegeri1mojokerto.sch.id/__statics/gudangsoal/files/how-do-you-get-free-robux-without-paying_GM431946152.pdfIn PDF document text
    • https://elearning.mtsnegeri1mojokerto.sch.id/__statics/gudangsoal/files/can-you-play-minecraft-for-free_GM479516143.pdfIn PDF document text
    • https://elearning.mtsnegeri1mojokerto.sch.id/__statics/gudangsoal/files/coin-master-daily-free-spins-hack_GM406889139.pdfIn PDF document text
    • https://elearning.mtsnegeri1mojokerto.sch.id/__statics/gudangsoal/files/lazyblocks-com-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning.mtsnegeri1mojokerto.sch.id/__statics/gudangsoal/files/games-in-roblox-that-give-you-robux_GM431946152.pdfIn PDF document text
    • https://elearning.mtsnegeri1mojokerto.sch.id/__statics/gudangsoal/files/robux-apk_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_off00004a86.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4A86 24760 bytes
SHA-256: ee9077eb81933b4607d9705e83914bb761ddee504cedea3dea8ee929fccde484
font_01_sfnt_off00008270.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8270 2840 bytes
SHA-256: 3fb127b764b9d10f5525bc4de5ec8316de704409ccb0cf21cff3ad8a30d11676
font_02_sfnt_off00008c22.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C22 18636 bytes
SHA-256: 430b8c6468b29bcb8a063019981b9f21e2cad4554a01abe6c0aff1c8414741f1