Malicious PDF — malware analysis report

Static analysis result for SHA-256 70280902b5f3f12e…

MALICIOUS

PDF

36.6 KB Created: 2021-07-04 11:49:23 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 816f474b690ec9f7eaf1f55ddb28b6d9 SHA-1: 37e9635560067c600e7d427dd14bd9b48722324c SHA-256: 70280902b5f3f12e7e55cc9eecb301f5ef9b85f7ee717c7c764b0da193823bdb
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links, including one identified as a malicious redirector, which leads to a lure for game hacks. The document body and extracted URLs suggest a phishing attempt disguised as a free generator or game hack. No scripts were extracted, but the presence of embedded URLs and the nature of the lure indicate a likely attempt to direct the user to malicious websites for further exploitation.

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/479516143/minecraft-free-download-chromebook-game-hack In PDF document text
    • https://elearning.nurulhuda.sch.id/__statics/gudangsoal/files/gift-card-robux-free_GM431946152.pdfIn PDF document text
    • https://elearning.nurulhuda.sch.id/__statics/gudangsoal/files/hacking-giving-my-fans-robux_GM431946152.pdfIn PDF document text
    • https://elearning.nurulhuda.sch.id/__statics/gudangsoal/files/minecraft-xray-hack_GM479516143.pdfIn PDF document text
    • https://elearning.nurulhuda.sch.id/__statics/gudangsoal/files/roblox-robux-hack-zone_GM431946152.pdfIn PDF document text
    • https://elearning.nurulhuda.sch.id/__statics/gudangsoal/files/coin-master-free-spins-link-haktuts_GM406889139.pdfIn PDF document text
    • https://elearning.nurulhuda.sch.id/__statics/gudangsoal/files/roblox-executor-free-download_GM431946152.pdfIn PDF document text
    • https://elearning.nurulhuda.sch.id/__statics/gudangsoal/files/how-to-save-a-free-model-in-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.nurulhuda.sch.id/__statics/gudangsoal/files/free-roblox-gift-card-codes-2021-march_GM431946152.pdfIn PDF document text
    • https://elearning.nurulhuda.sch.id/__statics/gudangsoal/files/robloxnation-com-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning.nurulhuda.sch.id/__statics/gudangsoal/files/in-roblox-how-do-you-get-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning.nurulhuda.sch.id/__statics/gudangsoal/files/roblox-script-cheat_GM431946152.pdfIn PDF document text
    • https://elearning.nurulhuda.sch.id/__statics/gudangsoal/files/cheat-roblox-power-simulator_GM431946152.pdfIn PDF document text
    • https://elearning.nurulhuda.sch.id/__statics/gudangsoal/files/free-roblox-places-2021_GM431946152.pdfIn PDF document text
    • https://elearning.nurulhuda.sch.id/__statics/gudangsoal/files/roblox-robux-hack-generator-no-survey-2021_GM431946152.pdfIn PDF document text
    • https://elearning.nurulhuda.sch.id/__statics/gudangsoal/files/free-coins-and-spins-link-for-coin-master_GM406889139.pdfIn PDF document text
    • https://elearning.nurulhuda.sch.id/__statics/gudangsoal/files/daily-spin_GM406889139.pdfIn PDF document text
    • https://elearning.nurulhuda.sch.id/__statics/gudangsoal/files/astuce-hack-robux_GM431946152.pdfIn PDF document text
    • https://elearning.nurulhuda.sch.id/__statics/gudangsoal/files/hack-configuration-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.nurulhuda.sch.id/__statics/gudangsoal/files/roblox-goradiel-rpg-4-hacked_GM431946152.pdfIn PDF document text
    • https://elearning.nurulhuda.sch.id/__statics/gudangsoal/files/minecraft-free-unblocked_GM479516143.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_off00003723.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3723 22708 bytes
SHA-256: 30de89ee3189cc18fe2565a0bdf11b2fdd5d9636103e600b6803040bb18e5bdf
font_01_sfnt_off000069c7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x69C7 19332 bytes
SHA-256: 4d7e6a8ad3ab477c7586955708d040336cfd9a5a5d373cde419f68ec141d9187

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