Malicious PDF — malware analysis report

Static analysis result for SHA-256 b717ee543de37c23…

MALICIOUS

PDF

34.1 KB Created: 2021-06-28 03:26:50 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: c70ce467c4501ebdb0ab69efce73a60e SHA-1: ca13c86aa81268296fe38db1066ffe5a2d39266c SHA-256: b717ee543de37c23d3f7a07a9b7707c85544981ee3ab28a20c607269f0a22b58
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains a lure for game hacks, specifically targeting Roblox and Coin Master, directing users to a malicious redirector. The ML classifier strongly flagged this PDF as malicious, and heuristics indicate it links to known malicious infrastructure. The document's purpose is to trick users into visiting potentially harmful websites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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/fallen-hacks-roblox-game-hack In PDF document text
    • https://elearningmts.isl.sch.id/__statics/gudangsoal/files/coin-master-heaven-daily-free-spins_GM406889139.pdfIn PDF document text
    • https://elearningmts.isl.sch.id/__statics/gudangsoal/files/ways-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • https://elearningmts.isl.sch.id/__statics/gudangsoal/files/coin-master-apk-hack-mod-download_GM406889139.pdfIn PDF document text
    • https://elearningmts.isl.sch.id/__statics/gudangsoal/files/roblox-hax_GM431946152.pdfIn PDF document text
    • https://elearningmts.isl.sch.id/__statics/gudangsoal/files/free-robux-group_GM431946152.pdfIn PDF document text
    • https://elearningmts.isl.sch.id/__statics/gudangsoal/files/coin-master-free-spins-and-coins-haktuts_GM406889139.pdfIn PDF document text
    • https://elearningmts.isl.sch.id/__statics/gudangsoal/files/tiktok-followers-generator-free_GM835599320.pdfIn PDF document text
    • https://elearningmts.isl.sch.id/__statics/gudangsoal/files/free-robux-games-are-bad_GM431946152.pdfIn PDF document text
    • https://elearningmts.isl.sch.id/__statics/gudangsoal/files/free-coins-generator-roblox-high-school_GM431946152.pdfIn PDF document text
    • https://elearningmts.isl.sch.id/__statics/gudangsoal/files/hack-apps-for-roblox-video_GM431946152.pdfIn PDF document text
    • https://elearningmts.isl.sch.id/__statics/gudangsoal/files/free-robux-gift-cards-2021_GM431946152.pdfIn PDF document text
    • https://elearningmts.isl.sch.id/__statics/gudangsoal/files/free-spins-coin-master-cheats_GM406889139.pdfIn PDF document text
    • https://elearningmts.isl.sch.id/__statics/gudangsoal/files/get-free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://elearningmts.isl.sch.id/__statics/gudangsoal/files/coin-master-daily-free-spins-link_GM406889139.pdfIn PDF document text
    • https://elearningmts.isl.sch.id/__statics/gudangsoal/files/free-tiktok-fans-no-verification-2021_GM835599320.pdfIn PDF document text
    • https://elearningmts.isl.sch.id/__statics/gudangsoal/files/how-to-get-free-clothes-on-roblox-2021-no-bc_GM431946152.pdfIn PDF document text
    • https://elearningmts.isl.sch.id/__statics/gudangsoal/files/free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • https://elearningmts.isl.sch.id/__statics/gudangsoal/files/roblox-studio-free-download_GM431946152.pdfIn PDF document text
    • https://elearningmts.isl.sch.id/__statics/gudangsoal/files/free-spins-on-coin-master-app_GM406889139.pdfIn PDF document text
    • https://elearningmts.isl.sch.id/__statics/gudangsoal/files/minecraft-pe-free-ios_GM479516143.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

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
font_00_sfnt_off00002fea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FEA 22252 bytes
SHA-256: 33864829d2c1b5fefcc582f70d33e7204903e0a8a4383d22013e8bc5b6d39fb2
font_01_sfnt_off0000611f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x611F 18820 bytes
SHA-256: ee9c5abc441d887dc61785fb7ed993602cc1c7e6c7913e3a10191a3cd09e6ff8

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