Malicious PDF — malware analysis report

Static analysis result for SHA-256 468cc3672b944c48…

MALICIOUS

PDF

36.1 KB Created: 2021-07-03 16:47:01 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: b96f756550c3a016dff06936318b6e75 SHA-1: 56787fb147b558c5e47386932d16a5e191925e51 SHA-256: 468cc3672b944c484e4409603876a6eb0e4e085670797c7b119d58c3c23f6b6d
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 0.9980

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 http://netcdn.tw/app/479516143/how-to-get-creative-mode-in-minecraft-server-hack-game-hack PDF link annotation
    • https://elearning-mtsn35.net/__statics/gudangsoal/files/free-followers-for-tiktok_GM835599320.pdfIn PDF document text
    • https://elearning-mtsn35.net/__statics/gudangsoal/files/how-to-get-free-robux-without-email_GM431946152.pdfIn PDF document text
    • https://elearning-mtsn35.net/__statics/gudangsoal/files/robux-for-kids_GM431946152.pdfIn PDF document text
    • http://elearning-mtsn35.net/__statics/gudangsoal/files/www-claim-gg-to-earn-free-robux_GM431946152.pdfIn PDF document text
    • http://elearning-mtsn35.net/__statics/gudangsoal/files/roblox-bloxburg-hack_GM431946152.pdfIn PDF document text
    • https://elearning-mtsn35.net/__statics/gudangsoal/files/roblox-muscle-simulater-cheat-codes_GM431946152.pdfIn PDF document text
    • http://elearning-mtsn35.net/__statics/gudangsoal/files/free-robux-gift-card-codes-2021_GM431946152.pdfIn PDF document text
    • https://elearning-mtsn35.net/__statics/gudangsoal/files/minecraft-hacks-115-2_GM479516143.pdfIn PDF document text
    • http://elearning-mtsn35.net/__statics/gudangsoal/files/how-to-get-free-robux-2021-easy_GM431946152.pdfIn PDF document text
    • https://elearning-mtsn35.net/__statics/gudangsoal/files/robloxfun-com-generator_GM431946152.pdfIn PDF document text
    • http://elearning-mtsn35.net/__statics/gudangsoal/files/roblox-gift-card-online-free_GM431946152.pdfIn PDF document text
    • http://elearning-mtsn35.net/__statics/gudangsoal/files/gamepass-for-free-roblox_GM431946152.pdfIn PDF document text
    • http://elearning-mtsn35.net/__statics/gudangsoal/files/how-do-i-get-free-robux_GM431946152.pdfIn PDF document text
    • http://elearning-mtsn35.net/__statics/gudangsoal/files/free-coins-coin-master-link_GM406889139.pdfIn PDF document text
    • https://elearning-mtsn35.net/__statics/gudangsoal/files/roblox-girl-avatar_GM431946152.pdfIn PDF document text
    • https://elearning-mtsn35.net/__statics/gudangsoal/files/online-coin-master-hack-here_GM406889139.pdfIn PDF document text
    • http://elearning-mtsn35.net/__statics/gudangsoal/files/coin-master-tricks_GM406889139.pdfIn PDF document text
    • https://elearning-mtsn35.net/__statics/gudangsoal/files/newo-icu-roblox-free-robux_GM431946152.pdfIn PDF document text
    • http://elearning-mtsn35.net/__statics/gudangsoal/files/is-java-minecraft-free_GM479516143.pdfIn PDF document text
    • https://elearning-mtsn35.net/__statics/gudangsoal/files/pubg-uc-mtc_GM1330123889.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_off00003696.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3696 22876 bytes
SHA-256: b91ceb54bd63a84fc300f80af993194b211439341b3468d5005c28a6fc475e29
font_01_sfnt_off000069b7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x69B7 18620 bytes
SHA-256: e9ae3ffdb85453ea0374ab223d3fde66ce2aaabe57ac171a5b8ae266564cfd25

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