Malicious PDF — malware analysis report

Static analysis result for SHA-256 50e796224fbb3de7…

MALICIOUS

PDF

44.3 KB Created: 2021-05-14 07:37:54 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: b69b4c2c95d0e7edb71e77566333f298 SHA-1: 0670694ce57e224ff0921fee77d4266e42c8f7a4 SHA-256: 50e796224fbb3de76f93054d472fcc1e6da1c13e13fad98f90a510495cf5c412
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a high-confidence heuristic indicating it links to a game hack redirector, specifically mentioning 'Coin Master Free Spins Haktuts'. The document body and extracted URLs reinforce this, pointing to sites offering free game currency or hacks. While no scripts were extracted, the presence of embedded URLs suggests the PDF is designed to redirect users to malicious sites for potential credential harvesting or further malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9648

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high 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.
  • 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
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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-free-spins-haktuts-game-hack PDF link annotation
    • http://elearning.mtsn3po.sch.id/__statics/gudangsoal/files/free-robux-no-human-verification-and-no-survey_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn3po.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-on-ipad_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn3po.sch.id/__statics/gudangsoal/files/80-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn3po.sch.id/__statics/gudangsoal/files/free-robux-generator-without-human-verification_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn3po.sch.id/__statics/gudangsoal/files/free-roblox-shirt-templates-2021_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn3po.sch.id/__statics/gudangsoal/files/free-robux-generator_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn3po.sch.id/__statics/gudangsoal/files/coin-master-hack-2021-android_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn3po.sch.id/__statics/gudangsoal/files/coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn3po.sch.id/__statics/gudangsoal/files/coin-master-free-shield-link_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn3po.sch.id/__statics/gudangsoal/files/earn-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn3po.sch.id/__statics/gudangsoal/files/coin-master-free-spins-app_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn3po.sch.id/__statics/gudangsoal/files/free-robux-without-human-verification-real_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn3po.sch.id/__statics/gudangsoal/files/coin-master-spin-ml-link_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn3po.sch.id/__statics/gudangsoal/files/how-to-hack-in-roblox-prison-life_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn3po.sch.id/__statics/gudangsoal/files/coin-master-hack-for-ios_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn3po.sch.id/__statics/gudangsoal/files/hack-coin-master-android_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn3po.sch.id/__statics/gudangsoal/files/free-coins-and-spins-for-coin-master-game_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn3po.sch.id/__statics/gudangsoal/files/500-free-coin-master-spins_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn3po.sch.id/__statics/gudangsoal/files/how-to-hack-someone-on-roblox_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn3po.sch.id/__statics/gudangsoal/files/haktuts-2021-coin-master-free-spin-link_GM406889139.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_off00004947.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4947 24460 bytes
SHA-256: e6dfe2802ec82d7f72160ca3639bda2f7375833a14bfc4448963c452c3f1d729
font_01_sfnt_off00008116.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8116 2868 bytes
SHA-256: d2d857e2ddc1082c7667b23f2135a5c0ba26a2ff8b42c86c89c8e0b09aece855
font_02_sfnt_off00008b01.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8B01 18196 bytes
SHA-256: 60e5d1f6f12937761343702ff54c0624bbba5eb6b748e0cd555839fa9283373b

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