Malicious PDF — malware analysis report

Static analysis result for SHA-256 ab2018fc3f1fad6d…

MALICIOUS

PDF

35.4 KB Created: 2021-07-09 19:22:29 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 3365268c9e45d6bdebfe81cb06449652 SHA-1: 9960b20f8cf78b34803b12ae6515c13b297bf2eb SHA-256: ab2018fc3f1fad6d651610b5be87b36c0e4e297a86f7f7fa4edc7f64e942849b
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/coin-master-free-spins-android-game-hack PDF link annotation
    • https://elearningmts.pontrenannur.or.id/__statics/gudangsoal/files/minecraft-free-games-no-download_GM479516143.pdfIn PDF document text
    • https://elearningmts.pontrenannur.or.id/__statics/gudangsoal/files/coin-master-daily-free-spins-link-today-blog_GM406889139.pdfIn PDF document text
    • https://elearningmts.pontrenannur.or.id/__statics/gudangsoal/files/funbloxxyz-free-robux_GM431946152.pdfIn PDF document text
    • https://elearningmts.pontrenannur.or.id/__statics/gudangsoal/files/roblox-legendary-football-speed-hack_GM431946152.pdfIn PDF document text
    • https://elearningmts.pontrenannur.or.id/__statics/gudangsoal/files/how-to-get-free-robux-without-downloading-anything_GM431946152.pdfIn PDF document text
    • https://elearningmts.pontrenannur.or.id/__statics/gudangsoal/files/get-me-robux-for-free_GM431946152.pdfIn PDF document text
    • https://elearningmts.pontrenannur.or.id/__statics/gudangsoal/files/roblox-free-shoes_GM431946152.pdfIn PDF document text
    • https://elearningmts.pontrenannur.or.id/__statics/gudangsoal/files/http-bitly-coin-master-free-2021-spins_GM406889139.pdfIn PDF document text
    • https://elearningmts.pontrenannur.or.id/__statics/gudangsoal/files/robux-com-free_GM431946152.pdfIn PDF document text
    • https://elearningmts.pontrenannur.or.id/__statics/gudangsoal/files/fast-and-easy-way-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://elearningmts.pontrenannur.or.id/__statics/gudangsoal/files/how-do-you-get-roebucks_GM431946152.pdfIn PDF document text
    • https://elearningmts.pontrenannur.or.id/__statics/gudangsoal/files/free-unlimited-coin-master-400-spin-link_GM406889139.pdfIn PDF document text
    • https://elearningmts.pontrenannur.or.id/__statics/gudangsoal/files/coin-master-daily-free-spins-link_GM406889139.pdfIn PDF document text
    • https://elearningmts.pontrenannur.or.id/__statics/gudangsoal/files/how-to-hack-to-get-robux_GM431946152.pdfIn PDF document text
    • https://elearningmts.pontrenannur.or.id/__statics/gudangsoal/files/robux-today_GM431946152.pdfIn PDF document text
    • https://elearningmts.pontrenannur.or.id/__statics/gudangsoal/files/free-attacks-on-coin-master_GM406889139.pdfIn PDF document text
    • https://elearningmts.pontrenannur.or.id/__statics/gudangsoal/files/how-to-get-free-robux-hack_GM431946152.pdfIn PDF document text
    • https://elearningmts.pontrenannur.or.id/__statics/gudangsoal/files/free-robux-working_GM431946152.pdfIn PDF document text
    • https://elearningmts.pontrenannur.or.id/__statics/gudangsoal/files/bleu-roblox-exploit-download-free_GM431946152.pdfIn PDF document text
    • https://elearningmts.pontrenannur.or.id/__statics/gudangsoal/files/get-free-spins-on-coin-master_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
stream_002_off0000330d.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x330D 23272 bytes
SHA-256: 5c68bbf7db118479bd05ee6ecefc3cfb96d1e5f3c891c21d06202d14be5b021d
font_01_sfnt_off0000679e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x679E 18348 bytes
SHA-256: 3aa320ccb9cb7c087074e4ef079b33192d8e05703f275142029ef104db56ac85

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