Malicious PDF — malware analysis report

Static analysis result for SHA-256 fc87e7f3d22b4e1f…

MALICIOUS

PDF

35.8 KB Created: 2021-06-28 01:40:52 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 2f4acafca6475a2cd809d2fd1e4ea926 SHA-1: d33d0b70d50a66edbd8ed60283b6a6a953b480b6 SHA-256: fc87e7f3d22b4e1ff2958b43752b5ebd90031962944c14e45fbd3dd455765315
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/robux-hack-generator-2021-no-survey-game-hack PDF link annotation
    • http://mtsn-baranti.com/perpus/repository/roblox-sans-shirt-free_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/free-robux-no-survreys_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/free-links-coin-master_GM406889139.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/hack-coin-master-free-spins_GM406889139.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/minecraft-world-free-download_GM479516143.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/robux-hack-generator_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/free-robux-pin-codes_GM431946152.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/hacks-de-roblox-booga-booga_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/crazy-lion-free-robux_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/free-tiktok-fans-no-human-verification-or-downloading-apps_GM835599320.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/anti-ban-and-kick-cheat-roblox-2021_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/dust-trust-roblox-hacker_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/coin-master-hack-facebook_GM406889139.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/hacks-for-coin-master-game_GM406889139.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/free-minecraft-server-maker_GM479516143.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/hack-that-thing-how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/pokemon-go-free-rare-candy_GM1094591345.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/free-spins-on-coin-masters_GM406889139.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_off00003208.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3208 22776 bytes
SHA-256: e155b82ebbea24ceacf8485b81b0fa34c54dc23b1f8e94918e4d7fc84edcae25
font_01_sfnt_off00006521.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6521 19524 bytes
SHA-256: 50016b8799a99e871f0b1f77e482daf953fa840a8a18580a4f5546131f42c4f1

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