Malicious PDF — malware analysis report

Static analysis result for SHA-256 2800c04c2062a106…

MALICIOUS

PDF

33.7 KB Created: 2021-07-07 16:45:17 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 40978b3c463c0b6c552ee4fea7f6ae5d SHA-1: 11901693bbe45e3343547395b2ab99d7abe2d14e SHA-256: 2800c04c2062a106aad514b3112cce5fff3821c56a338ea97007d0f090f3874b
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains links that redirect to malicious infrastructure, specifically promoting 'free generator' or 'game hack' lures. The primary URL, http://netcdn.tw/app/431946152/robux-hack-2021-game-hack, is identified as a malicious redirector. The document body and embedded URLs reinforce this lure by mentioning game-related terms like 'Robux Hack' and 'Coin Master Free Spins'.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9824

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.tw/app/431946152/robux-hack-2021-game-hack In PDF document text
    • http://elearning.mtsn2kulonprogo.sch.id/__statics/gudangsoal/files/roblox-free-vip-server_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn2kulonprogo.sch.id/__statics/gudangsoal/files/coin-master-free-spins-link-download-today_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn2kulonprogo.sch.id/__statics/gudangsoal/files/free-spin-coin-master-2021-link_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn2kulonprogo.sch.id/__statics/gudangsoal/files/coin-master-free-daily-spins-today_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn2kulonprogo.sch.id/__statics/gudangsoal/files/how-do-you-earn-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn2kulonprogo.sch.id/__statics/gudangsoal/files/minecraft-pocket-edition-mods-for-free_GM479516143.pdfIn PDF document text
    • http://elearning.mtsn2kulonprogo.sch.id/__statics/gudangsoal/files/get-free-robux-no-verification_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn2kulonprogo.sch.id/__statics/gudangsoal/files/coin-master-daily-free-spins-and-coins-2021_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn2kulonprogo.sch.id/__statics/gudangsoal/files/free-roblox-redeem-codes-for-robux_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn2kulonprogo.sch.id/__statics/gudangsoal/files/roblox-robux-hack-generator_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn2kulonprogo.sch.id/__statics/gudangsoal/files/coin-master-hack-tool-no-human-verification_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn2kulonprogo.sch.id/__statics/gudangsoal/files/roblox36com-free-robux_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn2kulonprogo.sch.id/__statics/gudangsoal/files/how-to-get-more-robux_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn2kulonprogo.sch.id/__statics/gudangsoal/files/free-robux-no-password-or-survey_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn2kulonprogo.sch.id/__statics/gudangsoal/files/free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn2kulonprogo.sch.id/__statics/gudangsoal/files/free-robux-no-generator_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn2kulonprogo.sch.id/__statics/gudangsoal/files/coin-master-spins-for-free_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn2kulonprogo.sch.id/__statics/gudangsoal/files/website-for-free-exploits-roblox_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn2kulonprogo.sch.id/__statics/gudangsoal/files/coin-master-free-spin-27_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn2kulonprogo.sch.id/__statics/gudangsoal/files/hacker-tycoon-roblox_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002bc3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2BC3 22704 bytes
SHA-256: 5996a6d007b5d3f319d5a9390a336dd13bd1c2d8d9fee8f5609d92df595a1399
font_01_sfnt_off00005eb0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5EB0 19124 bytes
SHA-256: a01abce438ace15ff0d22223d5cc83267d648dadbc6e7de58085c68645cb2558

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