Malicious PDF — malware analysis report

Static analysis result for SHA-256 4525643a6ca0a3fa…

MALICIOUS

PDF

45.4 KB Created: 2021-05-11 19:03:19 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 81cc3a6e147dfb7212caa0a2c5dcf5ef SHA-1: 0a95874750845f285dc81463d0f822ce2df0bf1b SHA-256: 4525643a6ca0a3fab08ea2454a4e4f72b9197592372811a0e4b3425f96ca63ef
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure related to 'free coin spin' and 'game hack' which directs users to a suspicious URL. This URL, along with numerous others found in the document, likely leads to a malicious download or phishing page. The ML classifier also flagged this PDF as malicious, increasing confidence in the assessment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9507

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/free-coin-spin-daily-link-net-game-hack PDF link annotation
    • https://labdagatismk1pundong.com/repository/how-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • https://labdagatismk1pundong.com/repository/coin-master-daily-free-spins-link-app_GM406889139.pdfIn PDF document text
    • https://www.labdagatismk1pundong.com/repository/hacked-client-for-minecraft-bedrock_GM479516143.pdfIn PDF document text
    • https://www.labdagatismk1pundong.com/repository/free-robux-sites-2021_GM431946152.pdfIn PDF document text
    • https://labdagatismk1pundong.com/repository/free-coin-master-spins-blog_GM406889139.pdfIn PDF document text
    • https://www.labdagatismk1pundong.com/repository/roblox-robux_GM431946152.pdfIn PDF document text
    • https://www.labdagatismk1pundong.com/repository/pig-master-free-coins-and-spins_GM406889139.pdfIn PDF document text
    • https://www.labdagatismk1pundong.com/repository/200-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://www.labdagatismk1pundong.com/repository/how-to-get-roblox-credit-for-free_GM431946152.pdfIn PDF document text
    • https://labdagatismk1pundong.com/repository/free-robux-no-survey-or-human-verification_GM431946152.pdfIn PDF document text
    • https://www.labdagatismk1pundong.com/repository/free-roblox-generator_GM431946152.pdfIn PDF document text
    • https://labdagatismk1pundong.com/repository/coin-master-3533-android-hack_GM406889139.pdfIn PDF document text
    • https://www.labdagatismk1pundong.com/repository/free-robux-generator-no-survey_GM431946152.pdfIn PDF document text
    • https://labdagatismk1pundong.com/repository/coin-master-hacks-2021_GM406889139.pdfIn PDF document text
    • https://www.labdagatismk1pundong.com/repository/how-to-get-coin-master-free-spin-link_GM406889139.pdfIn PDF document text
    • https://labdagatismk1pundong.com/repository/hacked-roblox-game_GM431946152.pdfIn PDF document text
    • https://www.labdagatismk1pundong.com/repository/coin-master-100-spin-hack_GM406889139.pdfIn PDF document text
    • https://www.labdagatismk1pundong.com/repository/coin-master-games-download-free_GM406889139.pdfIn PDF document text
    • https://labdagatismk1pundong.com/repository/bux-gg-robux-free_GM431946152.pdfIn PDF document text
    • https://www.labdagatismk1pundong.com/repository/coin-master-hack-pro_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_off00004839.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4839 26084 bytes
SHA-256: 7d81bc7368a4280e9e977124402a0a2fcd78679642a47e4fa1cb76d45d962fc2
font_01_sfnt_off0000846f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x846F 2896 bytes
SHA-256: c1a618813a64314343402b2ec738fc11c4c912460a4c7ae3029924d2f9a229cd
font_02_sfnt_off00008e55.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8E55 18476 bytes
SHA-256: a45ac89bf2e2416da930d8b3eca3f962036decefdb3f4ca9edd278cb9127c5f7

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