Malicious PDF — malware analysis report

Static analysis result for SHA-256 b0a66faea4993564…

MALICIOUS

PDF

34.6 KB Created: 2021-07-06 07:18:30 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 1580b9ac6a02cf78e63c34c512edfcd9 SHA-1: ebfed271b1bb30370a5b1231ccd66de56e055a10 SHA-256: b0a66faea49935641cfe7104a57c4bb9bdf99fe534d140cadd0791e1d517a0d3
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links designed to lure users into clicking on what appears to be a game hack or generator. The primary link, http://netcdn.tw/app/431946152/instantrobux-game-hack, is flagged as a known malicious redirector. The document's structure and embedded links suggest it is part of a phishing campaign aiming to redirect users to potentially malicious websites, likely for credential harvesting or further malware delivery.

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.tw/app/431946152/instantrobux-game-hack In PDF document text
    • http://elearning.mtsn2buleleng.sch.id/__statics/gudangsoal/files/rbx-roblox_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn2buleleng.sch.id/__statics/gudangsoal/files/free-coin_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn2buleleng.sch.id/__statics/gudangsoal/files/play-games-for-free-robux_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn2buleleng.sch.id/__statics/gudangsoal/files/minecraft-windows-10-hack-client-2021_GM479516143.pdfIn PDF document text
    • http://elearning.mtsn2buleleng.sch.id/__statics/gudangsoal/files/roblox-hack-downland_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn2buleleng.sch.id/__statics/gudangsoal/files/free-coin-master-spin-and-coin-link_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn2buleleng.sch.id/__statics/gudangsoal/files/how-do-you-get-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn2buleleng.sch.id/__statics/gudangsoal/files/minecraft-coins-free_GM479516143.pdfIn PDF document text
    • http://elearning.mtsn2buleleng.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-hack_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn2buleleng.sch.id/__statics/gudangsoal/files/minecraft-free-ios-2021_GM479516143.pdfIn PDF document text
    • http://elearning.mtsn2buleleng.sch.id/__statics/gudangsoal/files/dragon-ball-online-cheats-roblox_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn2buleleng.sch.id/__statics/gudangsoal/files/free-robux-wheel_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn2buleleng.sch.id/__statics/gudangsoal/files/unpatchable-free-robux_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn2buleleng.sch.id/__statics/gudangsoal/files/link-for-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn2buleleng.sch.id/__statics/gudangsoal/files/roblox-accsesorie-free_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn2buleleng.sch.id/__statics/gudangsoal/files/get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn2buleleng.sch.id/__statics/gudangsoal/files/roblox-cheat-engine-61-download_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn2buleleng.sch.id/__statics/gudangsoal/files/how-to-get-minecraft-for-free-on-iphone-2021_GM479516143.pdfIn PDF document text
    • http://elearning.mtsn2buleleng.sch.id/__statics/gudangsoal/files/coin-master-cheats-without-verification_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn2buleleng.sch.id/__statics/gudangsoal/files/roblox-free-followers_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_off00003066.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3066 22780 bytes
SHA-256: 6acea1657f60116cae65fc1f3e36dabfc90b5eda1156edab440e186198c96cb8
font_01_sfnt_off00006324.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6324 18656 bytes
SHA-256: 5a13a4ba7d4aa3ba564163d7fd1f4e40de414e0c8b16d10ac9018e4301010f0d

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