Malicious PDF — malware analysis report

Static analysis result for SHA-256 d4a68a8b4627d3b1…

MALICIOUS

PDF

34.8 KB Created: 2021-06-25 12:09:21 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: d5da71daac09d27f167cb04172778cfa SHA-1: dc8355ede7372f102267019f68f9b0b2a39ccca8 SHA-256: d4a68a8b4627d3b19532ec92011d1636915042e2eb4e1b77b4b08e74e96e5fe7
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/games-to-get-me-free-roblox-now-game-hack PDF link annotation
    • http://mtsn-baranti.com/perpus/repository/roblox-ninja-warrior-hack_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/minecraft-ps4-code-free_GM479516143.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/coin-master-free-daily-rewards_GM406889139.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/robux-hack-free-robux_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/free-spin-coin-master-game_GM406889139.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/get-free-spins-coin-master-link_GM406889139.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/microsoft-bing-free-robux_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/free-robux-easy-and-fast_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/teach-me-to-hack_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/minecraft-skins-download-free_GM479516143.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/roblox-how-to-get-40-robux-free_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/programas-para-hackear-roblox_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/coin-master-cheat-codes_GM406889139.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/best-minecraft-hacked-client-2021_GM479516143.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/hacks-para-tener-aim-bot-en-roblox_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/ccv3-cheats-for-roblox_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/free-robux-rewards_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/facebook-coin-master-free-spins-link_GM406889139.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/how-to-get-free-robux-using-rblx-gg_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/roblox-plaza-how-to-cheat-a-big-win_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_off000030da.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30DA 22228 bytes
SHA-256: 0a93487817b0b835c4b96781dbf660fbda793a07613746578ea67dd882690f77
font_01_sfnt_off00006228.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6228 19376 bytes
SHA-256: 619c14731d49e4f164ac69739e4596a0ec7d5059f7491ac7be196d26fb1a23ab

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