Malicious PDF — malware analysis report

Static analysis result for SHA-256 ef6e78efeaa755ad…

MALICIOUS

PDF

35.6 KB Created: 2021-06-22 06:21:13 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: fe3833a4021cb75a49e7ec88dd5073c4 SHA-1: 59c0dc97234a6b9cdb22211c3695babf104c0114 SHA-256: ef6e78efeaa755ad98003115803d1e0aaeca699daa389556b265d3e081735713
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.co/app/431946152/how-to-get-free-robux-codes-2021-game-hack PDF link annotation
    • https://schneider-und-berger.de/images/naruto-rpg-roblox-hack_GM431946152.pdfIn PDF document text
    • https://schneider-und-berger.de/images/minecraft-dungeons-free-download_GM479516143.pdfIn PDF document text
    • https://schneider-und-berger.de/images/coin-master-hack-without-verification-code-2021_GM406889139.pdfIn PDF document text
    • https://schneider-und-berger.de/images/how-to-download-minecraft-for-free-on-mac_GM479516143.pdfIn PDF document text
    • https://schneider-und-berger.de/images/free-roblox-accounts-2021_GM431946152.pdfIn PDF document text
    • https://schneider-und-berger.de/images/rbx-free_GM431946152.pdfIn PDF document text
    • https://schneider-und-berger.de/images/create-minecraft-server-free_GM479516143.pdfIn PDF document text
    • https://schneider-und-berger.de/images/coin-master-free-coins-links-2021_GM406889139.pdfIn PDF document text
    • https://schneider-und-berger.de/images/how-to-get-free-robux-instantly-2021_GM431946152.pdfIn PDF document text
    • https://schneider-und-berger.de/images/cookie-hack-roblox-players-on-galaxy-note-8_GM431946152.pdfIn PDF document text
    • https://schneider-und-berger.de/images/coin-master-hack-app-ios_GM406889139.pdfIn PDF document text
    • https://schneider-und-berger.de/images/me-han-hackeado-la-cuenta-de-roblox_GM431946152.pdfIn PDF document text
    • https://schneider-und-berger.de/images/how-to-get-free-spins-on-coin-master-2021-links_GM406889139.pdfIn PDF document text
    • https://schneider-und-berger.de/images/free-spins-on-coin-master-link_GM406889139.pdfIn PDF document text
    • https://schneider-und-berger.de/images/robloxcom-free-kkk-k-k-k-k-m_GM431946152.pdfIn PDF document text
    • https://schneider-und-berger.de/images/free-robux-no-human-verification-or-survey_GM431946152.pdfIn PDF document text
    • https://schneider-und-berger.de/images/free-shirt-roblox_GM431946152.pdfIn PDF document text
    • https://schneider-und-berger.de/images/hack-robux_GM431946152.pdfIn PDF document text
    • https://schneider-und-berger.de/images/earn-robux-today_GM431946152.pdfIn PDF document text
    • https://schneider-und-berger.de/images/coin-master-daily-free-spins-link-today-2021_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
font_00_sfnt_off00003132.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3132 22836 bytes
SHA-256: d7430f3b6a10683046cff2bb97442398b23ae93d5da7e6e3736726bec6c8820a
font_01_sfnt_off00006457.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6457 19560 bytes
SHA-256: 23fd6b1887025421e6e39521b650ee02de163ea1ebb303fc14ef8bd616b7f3d5

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