Malicious PDF — malware analysis report

Static analysis result for SHA-256 8e900f984ea6bef1…

MALICIOUS

PDF

35.4 KB Created: 2021-07-03 22:58:35 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: fc732c14941a60f7940aced4ac98cfe7 SHA-1: f4dfc6995e6c12407bf784492f202c33c1e14c51 SHA-256: 8e900f984ea6bef1eee9016e80faa5f9f817128073e3610375de05df9789dd2c
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/431946152/how-to-get-free-robux-2021-easy-game-hack PDF link annotation
    • https://elearning.mtsn6tanahdatar.sch.id/__statics/gudangsoal/files/free-hack-tool-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn6tanahdatar.sch.id/__statics/gudangsoal/files/cch-ly-robux-free-de-nhat_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn6tanahdatar.sch.id/__statics/gudangsoal/files/hacks-roblox-kazui_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn6tanahdatar.sch.id/__statics/gudangsoal/files/get-roblox-items-free-chrome-addon_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn6tanahdatar.sch.id/__statics/gudangsoal/files/free-tiktok-followers_GM835599320.pdfIn PDF document text
    • https://elearning.mtsn6tanahdatar.sch.id/__statics/gudangsoal/files/minecraft-free-download-ios_GM479516143.pdfIn PDF document text
    • https://elearning.mtsn6tanahdatar.sch.id/__statics/gudangsoal/files/free-roblox-in-game-hacks_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn6tanahdatar.sch.id/__statics/gudangsoal/files/roblox-groups-that-give-free-robux-2021_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn6tanahdatar.sch.id/__statics/gudangsoal/files/tiktok-likes-for-free_GM835599320.pdfIn PDF document text
    • https://elearning.mtsn6tanahdatar.sch.id/__statics/gudangsoal/files/raindrop-roblox-free_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn6tanahdatar.sch.id/__statics/gudangsoal/files/roblox-diamond-hack_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn6tanahdatar.sch.id/__statics/gudangsoal/files/hack-roblox-wipeout_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn6tanahdatar.sch.id/__statics/gudangsoal/files/free-robux-really-works-2021_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn6tanahdatar.sch.id/__statics/gudangsoal/files/hack-proxo-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn6tanahdatar.sch.id/__statics/gudangsoal/files/adopt-me-roblox-hacks_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn6tanahdatar.sch.id/__statics/gudangsoal/files/coin-master-free-coins-and-spins_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn6tanahdatar.sch.id/__statics/gudangsoal/files/como-hackear-a-la-gente-en-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn6tanahdatar.sch.id/__statics/gudangsoal/files/free-minecraft-accounts-2021_GM479516143.pdfIn PDF document text
    • https://elearning.mtsn6tanahdatar.sch.id/__statics/gudangsoal/files/infinity-clicker-roblox-hack_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn6tanahdatar.sch.id/__statics/gudangsoal/files/free-disney-plus-accounts-tiktok_GM835599320.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_off000030aa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30AA 22796 bytes
SHA-256: f6a58f7b4b155cdb26e6c57084661b2679cd82756048c4dc93eaf3b89677eeba
font_01_sfnt_off0000639f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x639F 19568 bytes
SHA-256: 54573245d87bf425d09f38ae69d600f60ea89f6a8aa7cff0a6b46d42a5179ab9

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