Malicious PDF — malware analysis report

Static analysis result for SHA-256 847290006b66fd43…

MALICIOUS

PDF

34.4 KB Created: 2021-06-29 20:10:49 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 7e5e0fdfbed374a6c1a7867e191dff72 SHA-1: 173520116a246c1bd5e6abef56bf9f37ef5e7bd7 SHA-256: 847290006b66fd4303c96f55fc1e28723344c04774884b5d82d34ac3ee357f23
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/this-roblox-game-gives-you-free-robux-game-hack PDF link annotation
    • http://unifieo.br/images/coin-master-daily-free-spins-link-today_GM406889139.pdfIn PDF document text
    • http://unifieo.br/images/ich-bin-am-hacken-roblox-name-danny-jesden_GM431946152.pdfIn PDF document text
    • http://unifieo.br/images/how-to-add-hacks-to-a-roblox-game_GM431946152.pdfIn PDF document text
    • http://unifieo.br/images/roblox-toy-codes-free_GM431946152.pdfIn PDF document text
    • http://unifieo.br/images/coin-master-daily-free-spin-and-coin_GM406889139.pdfIn PDF document text
    • http://unifieo.br/images/free-backpack-in-roblox_GM431946152.pdfIn PDF document text
    • http://unifieo.br/images/roblox-cheats-like-rcm_GM431946152.pdfIn PDF document text
    • http://unifieo.br/images/coin-master-daily-free-spins-and-coins-link_GM406889139.pdfIn PDF document text
    • http://unifieo.br/images/minecraft-free-computer-game_GM479516143.pdfIn PDF document text
    • http://unifieo.br/images/free-robux-discord-servers_GM431946152.pdfIn PDF document text
    • http://unifieo.br/images/roblox-e-free_GM431946152.pdfIn PDF document text
    • http://unifieo.br/images/mcpe-master-hack-unlimited-coins-apk_GM406889139.pdfIn PDF document text
    • http://unifieo.br/images/roblox-pin-hack_GM431946152.pdfIn PDF document text
    • http://unifieo.br/images/how-to-get-free-robux-on-xbox-one-2021_GM431946152.pdfIn PDF document text
    • http://unifieo.br/images/free-printable-roblox-miniature-chocolate_GM431946152.pdfIn PDF document text
    • http://unifieo.br/images/how-to-hack-and-get-free-robux_GM431946152.pdfIn PDF document text
    • http://unifieo.br/images/framed-roblox-hack_GM431946152.pdfIn PDF document text
    • http://unifieo.br/images/roblox-how-to-get-free-obc-2021_GM431946152.pdfIn PDF document text
    • http://unifieo.br/images/hacka-for-mobile-roblox_GM431946152.pdfIn PDF document text
    • http://unifieo.br/images/hack-da-hood-tuto-roblox_GM431946152.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_off00002d28.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2D28 22640 bytes
SHA-256: 762da91fc24066bae736307045da7d26dc80f85ce6167304317c65728b94d633
font_01_sfnt_off00005fe9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FE9 19612 bytes
SHA-256: 5f4b734238bbd7c110f136025daaef63a9adde491b0090b2e719949131239066