Malicious PDF — malware analysis report

Static analysis result for SHA-256 ed14f3cd693b2956…

MALICIOUS

PDF

48.7 KB Created: 2021-06-02 15:37:38 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 2f59a12e114c340c3cee5d603125a424 SHA-1: cd796e682bf283d53b0ed4c74de822b0d465bf83 SHA-256: ed14f3cd693b295639d96fe93ff7a00872cdb244ec9d08b7e85cd04836836188
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 0.9796

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/431946152/how-to-hack-a-roblox-server-2021-game-hack PDF link annotation
    • http://apd-ukraine.de/images/how-to-get-minecraft-pocket-edition-for-free_GM479516143.pdfIn PDF document text
    • http://apd-ukraine.de/images/free-robux-kid-friendly_GM431946152.pdfIn PDF document text
    • http://apd-ukraine.de/images/get-free-robux-now_GM431946152.pdfIn PDF document text
    • http://apd-ukraine.de/images/how-to-get-free-robux-hack-2021_GM431946152.pdfIn PDF document text
    • http://apd-ukraine.de/images/coin-master-daily-free-spins-link_GM406889139.pdfIn PDF document text
    • http://apd-ukraine.de/images/minecraft-pe-hack-client_GM479516143.pdfIn PDF document text
    • http://apd-ukraine.de/images/robux-com-free_GM431946152.pdfIn PDF document text
    • http://apd-ukraine.de/images/mobihack-net-roblox-hack_GM431946152.pdfIn PDF document text
    • http://apd-ukraine.de/images/coin-master-free-spin-and-coins-links-2021_GM406889139.pdfIn PDF document text
    • http://apd-ukraine.de/images/free-minecraft-svg-cutting-files_GM479516143.pdfIn PDF document text
    • http://apd-ukraine.de/images/coinmaster-com_GM406889139.pdfIn PDF document text
    • http://apd-ukraine.de/images/roblox-free-robux-hack_GM431946152.pdfIn PDF document text
    • http://apd-ukraine.de/images/get-free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://apd-ukraine.de/images/free-coin-and-spin-in-coin-master_GM406889139.pdfIn PDF document text
    • http://apd-ukraine.de/images/roblox-free-robux-no-verification_GM431946152.pdfIn PDF document text
    • http://apd-ukraine.de/images/robuxy-com-generator_GM431946152.pdfIn PDF document text
    • http://apd-ukraine.de/images/coin-master-game-free-download_GM406889139.pdfIn PDF document text
    • http://apd-ukraine.de/images/how-to-get-free-robux-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • http://apd-ukraine.de/images/www-roblox-robux_GM431946152.pdfIn PDF document text
    • http://apd-ukraine.de/images/youtube-free-fire-tik-tok_GM835599320.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_004_off00005104.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5104 26892 bytes
SHA-256: 4d0bb280a8b707fc9a0af879615f2f84f5676349aa949a67b02f1e6193526dc7
font_01_sfnt_off00008c8e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C8E 5696 bytes
SHA-256: 450e3ee45915afe13702bf1d587eb8b9ad88a8d2113419ac9f2fd116a828e139
font_02_sfnt_off000099a0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x99A0 18860 bytes
SHA-256: b4486e1bd9d71d52c52b710b5492c0638d728269ec90f5f11f55d011de03720b

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