Malicious PDF — malware analysis report

Static analysis result for SHA-256 7472503ad0b61787…

MALICIOUS

PDF

47.4 KB Created: 2021-06-11 07:43:04 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: d3666d05d6ef9ef734c11645e7f71bae SHA-1: 10e2338fb6b8d09ab93bd30d84afe4477b0e5744 SHA-256: 7472503ad0b6178731c1ad1b450d33b47287c603fb663d9cba798ac5bfb33fe3
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 0.9769

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 https://netcdn.tw/app/431946152/how-to-get-2-000-robux-for-free-game-hack PDF link annotation
    • http://balitgetas.co.id/pustaka/repository/free-robux-wheel_GM431946152.pdfIn PDF document text
    • http://balitgetas.co.id/pustaka/repository/coin-master-free-spins-a2z-help_GM406889139.pdfIn PDF document text
    • http://balitgetas.co.id/pustaka/repository/coin-master-free-spins-link-2021-ios_GM406889139.pdfIn PDF document text
    • http://balitgetas.co.id/pustaka/repository/get-free-robux_GM431946152.pdfIn PDF document text
    • http://balitgetas.co.id/pustaka/repository/roblox-toy-codes-free_GM431946152.pdfIn PDF document text
    • http://balitgetas.co.id/pustaka/repository/free-robux-hack_GM431946152.pdfIn PDF document text
    • http://balitgetas.co.id/pustaka/repository/coin-master-shield-hack_GM406889139.pdfIn PDF document text
    • http://balitgetas.co.id/pustaka/repository/classic-minecraft-net-hacks_GM479516143.pdfIn PDF document text
    • http://balitgetas.co.id/pustaka/repository/haxteam-free-robux_GM431946152.pdfIn PDF document text
    • http://balitgetas.co.id/pustaka/repository/how-to-get-minecraft-realms-for-free_GM479516143.pdfIn PDF document text
    • http://balitgetas.co.id/pustaka/repository/coin-master-free_GM406889139.pdfIn PDF document text
    • http://balitgetas.co.id/pustaka/repository/free-spin-and-coin-links_GM406889139.pdfIn PDF document text
    • http://balitgetas.co.id/pustaka/repository/spin-free-coin-master_GM406889139.pdfIn PDF document text
    • http://balitgetas.co.id/pustaka/repository/coin-master-free-daily-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://balitgetas.co.id/pustaka/repository/roblox-land-free-robux_GM431946152.pdfIn PDF document text
    • http://balitgetas.co.id/pustaka/repository/coin-master-daily-free-coins-link-today_GM406889139.pdfIn PDF document text
    • http://balitgetas.co.id/pustaka/repository/minecraft-hack-ios_GM479516143.pdfIn PDF document text
    • http://balitgetas.co.id/pustaka/repository/free-robux-with-no-offer_GM431946152.pdfIn PDF document text
    • http://balitgetas.co.id/pustaka/repository/coin-master-free-daily-spins_GM406889139.pdfIn PDF document text
    • http://balitgetas.co.id/pustaka/repository/spins-gratis-coin-master-hoy_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004f99.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4F99 26108 bytes
SHA-256: 7ed021bbb0c64952d01ab96c978308695762a54bdac704d5e84ddf0c96a37c48
font_01_sfnt_off00008b3f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8B3F 2964 bytes
SHA-256: 6e4afbe5d7729ab113dcfb6717fc95745676119278e53da00249487644a9452f
font_02_sfnt_off0000956d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x956D 18576 bytes
SHA-256: b7714a56a03d4e3b202b13ee3fbad8903c7805ea675656debd0dc1e310c00e17

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