Malicious PDF — malware analysis report

Static analysis result for SHA-256 05b900c3ed388d90…

MALICIOUS

PDF

34.6 KB Created: 2021-06-28 05:47:34 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 6b8dadb30592504d38d2da8d73081a60 SHA-1: ab81c889db6745cc83029c56083986d55c53e0ed SHA-256: 05b900c3ed388d90346b3695668bb49843feb11e0e2ae762ee879799ff1ac3ce
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/redline-cheat-in-roblox-game-hack PDF link annotation
    • http://mtsn-baranti.com/perpus/repository/roblox-help-free-robux_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/25-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/free-coin-master-spins-blog_GM406889139.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/free-games-like-minecraft_GM479516143.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/free-robux-2021-no-verification_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/roblox-adopt-me-hack_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/hack-robux_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/slurp-roblox-hack-2021_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/admin-hack-roblox-espaol_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/coin-master-free-spins-link-blogspot_GM406889139.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/roblox-work-at-a-pizza-place-money-hack_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/free-robux-codes-2021-without-human-verification_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/free-codeon-roblox_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/builder-ship-for-treasure-in-roblox-for-free-game_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/free-roblox-zombie-games_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/roblox40com-robux_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/free-robux-no-verification-needed_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/free-2021-roblox-accounts-2021_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/free-minecraft-printables_GM479516143.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/are-robux-generators-safe_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_off00002eba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2EBA 22988 bytes
SHA-256: 32efffb409b44472059849674e10da83572ff96d75c6c1d89b456ae3621cf750
font_01_sfnt_off00006253.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6253 19048 bytes
SHA-256: a36f4b38a14bd5e5410e1bee0d03a95f292d59333b5e240e52854113eb90762e

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