Malicious PDF — malware analysis report

Static analysis result for SHA-256 6230c01d1319a7e7…

MALICIOUS

PDF

34.7 KB Created: 2021-07-05 01:34:13 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-24
MD5: a6bc44ca9a8a14bac4736f9556bbc285 SHA-1: 352516987232681569b35f42fc9f4922c906939e SHA-256: 6230c01d1319a7e70dc8d2d9946f3f03afc43b971798a9b84546220065cfade2
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/406889139/united-gaming-net-coin-master-hack-game-hack PDF link annotation
    • http://lib.unar.ac.id//repository/free-coins-for-planet-master-game_GM406889139.pdfIn PDF document text
    • http://lib.unar.ac.id/repository/wizard-hacks_GM479516143.pdfIn PDF document text
    • http://lib.unar.ac.id//repository/free-daily-coin-master-coins_GM406889139.pdfIn PDF document text
    • http://lib.unar.ac.id/repository/free-roblox-toys_GM431946152.pdfIn PDF document text
    • http://lib.unar.ac.id/repository/free-coin-master-hacks-no-verification-or-survey_GM406889139.pdfIn PDF document text
    • http://lib.unar.ac.id/repository/free-coin-master-spins-no-verification_GM406889139.pdfIn PDF document text
    • http://lib.unar.ac.id/repository/how-to-gain-more-spins-on-coin-master-for-free_GM406889139.pdfIn PDF document text
    • http://lib.unar.ac.id/repository/adfly-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.unar.ac.id/repository/download-roblox-hack-robux-free_GM431946152.pdfIn PDF document text
    • http://lib.unar.ac.id/repository/get-everything-free-roblox-console-pastebin_GM431946152.pdfIn PDF document text
    • http://lib.unar.ac.id/repository/coin-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://lib.unar.ac.id/repository/free-robux-apk-hack_GM431946152.pdfIn PDF document text
    • http://lib.unar.ac.id/repository/game-kit-roblox-800-robux-for-free_GM431946152.pdfIn PDF document text
    • http://lib.unar.ac.id//repository/best-roblox-hacks_GM431946152.pdfIn PDF document text
    • http://lib.unar.ac.id/repository/free-robux-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • http://lib.unar.ac.id/repository/coin-master-2021_GM406889139.pdfIn PDF document text
    • http://lib.unar.ac.id/repository/free-robux-gift-card-codes-2021-november_GM431946152.pdfIn PDF document text
    • http://lib.unar.ac.id/repository/how-to-get-a-lua-injector-for-hacking-roblox-free_GM431946152.pdfIn PDF document text
    • http://lib.unar.ac.id/repository/how-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://lib.unar.ac.id/repository/how-to-hack-minecraft_GM479516143.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_off00002f21.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F21 23340 bytes
SHA-256: 26916ad3c2a5a7561166f738f93860a0194f4a68f11e52a3eddf4a0c0db190e5
font_01_sfnt_off000063e2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63E2 18624 bytes
SHA-256: fd91004ccc7853650b7b911b20124dd64b820294025c290f6f55d75747c8a01a