Malicious PDF — malware analysis report

Static analysis result for SHA-256 6804242b43e9d88d…

MALICIOUS

PDF

42.6 KB Created: 2021-05-13 05:01:08 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 7dd4bb27404c83fdaeb32a39767b4baf SHA-1: bf1f9e80c3d7e62801e6bd6392e8fd03a565c3b8 SHA-256: 6804242b43e9d88d082c71306256875f0952b573db5fda4fd83363260383b587
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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-hack-apk-download-for-android-mobile-game-hack PDF link annotation
    • http://elearning-mtsn35.net/__statics/gudangsoal/files/daily-free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://elearning-mtsn35.net/__statics/gudangsoal/files/free-robux-only-username_GM431946152.pdfIn PDF document text
    • https://elearning-mtsn35.net/__statics/gudangsoal/files/how-to-get-free-robux-games_GM431946152.pdfIn PDF document text
    • https://elearning-mtsn35.net/__statics/gudangsoal/files/free-robux-apps-that-work_GM431946152.pdfIn PDF document text
    • http://elearning-mtsn35.net/__statics/gudangsoal/files/best-free-spin-app-for-coin-master_GM406889139.pdfIn PDF document text
    • http://elearning-mtsn35.net/__statics/gudangsoal/files/coin-master-hack-version-2021_GM406889139.pdfIn PDF document text
    • http://elearning-mtsn35.net/__statics/gudangsoal/files/free-minecraft-java-edition_GM479516143.pdfIn PDF document text
    • http://elearning-mtsn35.net/__statics/gudangsoal/files/roblox-hack-ios_GM431946152.pdfIn PDF document text
    • http://elearning-mtsn35.net/__statics/gudangsoal/files/how-to-get-free-robux-hack-2021_GM431946152.pdfIn PDF document text
    • http://elearning-mtsn35.net/__statics/gudangsoal/files/how-to-get-free-stuff-on-roblox_GM431946152.pdfIn PDF document text
    • https://elearning-mtsn35.net/__statics/gudangsoal/files/coin-master-free-spins-cash_GM406889139.pdfIn PDF document text
    • http://elearning-mtsn35.net/__statics/gudangsoal/files/how-to-download-minecraft-for-free-on-android_GM479516143.pdfIn PDF document text
    • http://elearning-mtsn35.net/__statics/gudangsoal/files/how-to-hack-robux_GM431946152.pdfIn PDF document text
    • http://elearning-mtsn35.net/__statics/gudangsoal/files/coin-master-daily-free-cards_GM406889139.pdfIn PDF document text
    • http://elearning-mtsn35.net/__statics/gudangsoal/files/legit-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://elearning-mtsn35.net/__statics/gudangsoal/files/minecraft-hacked-client-112-2_GM479516143.pdfIn PDF document text
    • http://elearning-mtsn35.net/__statics/gudangsoal/files/rbx-free-robux_GM431946152.pdfIn PDF document text
    • http://elearning-mtsn35.net/__statics/gudangsoal/files/free-robux-hack-us_GM431946152.pdfIn PDF document text
    • http://elearning-mtsn35.net/__statics/gudangsoal/files/coin-master-free-spin-app-iphone_GM406889139.pdfIn PDF document text
    • http://elearning-mtsn35.net/__statics/gudangsoal/files/coin-master-apk_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004c01.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4C01 24248 bytes
SHA-256: f82e6e5aa4f2f641a4299cf839221a5eb6205e6524286b765210b497a71f5ccc
font_01_sfnt_off00008298.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8298 18792 bytes
SHA-256: 9b8c4ac4c9b43c558f32175e9106326f8ee670f1239155596fca266ca3d28f0b

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