Malicious PDF — malware analysis report

Static analysis result for SHA-256 0ed44b5a5f67f9c8…

MALICIOUS

PDF

33.5 KB Created: 2021-07-05 19:53:38 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 160cbf8e9d603e3261ebcb2a9663b497 SHA-1: dd86b4f5e19b889e415faebb334a86d7708042ab SHA-256: 0ed44b5a5f67f9c8f1704d4a825d45e1582cf1aede9eaf196ab3e356f242d2c2
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.tw/app/431946152/roblox-rewards-game-hack PDF link annotation
    • http://slim.sisminkada.net/repository/free-robux-codes-redeem-2021_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/free-commands-roblox_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/coin-master-free-coins-spins_GM406889139.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/roblox-free-privat-server_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/free-cookie-swirl-c-shirt-roblox_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/blogger-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/free-builders-club-that-cost-1-robux_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/how-do-i-hack-a-roblox-user_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/roblox-hacked-version-download-apk_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/how-many-levels-are-there-in-coin-master_GM406889139.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/master-coin-free-link_GM406889139.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/how-to-spawn-models-in-roblox-with-hack_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/coin-master-spin-free_GM406889139.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/robloc-robux-hack_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/roblox-para-descargar-hackeado_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/coin-master-hack-app_GM406889139.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/coin-master-free-spins-link-fb_GM406889139.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/commands-roblox-hack_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/free-coin-master-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/coin-master-daily-free-spins-link-today_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_off00002cac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2CAC 22260 bytes
SHA-256: 7124eeaa13a9cf72a12131e9d9b4b023fe1399376d0fe891216b1ad43ac531f5
font_01_sfnt_off00005e60.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E60 18824 bytes
SHA-256: 9dad12e0ba3ab01bf56f7fa2fd81f69c01c27afe4c7fb3c83386f538323ede08

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