Malicious PDF — malware analysis report

Static analysis result for SHA-256 6306cd216a3732da…

MALICIOUS

PDF

47.5 KB Created: 2021-06-03 10:29:30 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: c1f7ebefe85ccc748596d77b5e399b42 SHA-1: 8cc7a2d6c16b33b36af8d262822f32c1c5113367 SHA-256: 6306cd216a3732da40f7391d93c89f9e233e3c5b00e524c674fc13895cef6f3a
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a prominent link disguised as a game hack generator, which redirects to a malicious domain. This lure is designed to trick users into clicking the link, likely leading to a further stage of infection or a phishing attempt. The ML classifier also flagged this PDF as malicious.

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.online/app/406889139/free-spins-and-coins-coin-master-link-2021-game-hack PDF link annotation
    • http://lib.teknik.unimal.ac.id//repository/freespins-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id//repository/haktuts-2021-coin-master-free-spin-link_GM406889139.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id/repository/coin-master-daily-bonus_GM406889139.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id/repository/minecraft-free-download-iphone_GM479516143.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id/repository/minecraft-modded-client_GM479516143.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id/repository/hack-coin-master-mod-apk_GM406889139.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id//repository/free-limiteds-roblox_GM431946152.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id//repository/impact-minecraft-hack_GM479516143.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id/repository/how-to-get-minecraft-for-free-on-pc_GM479516143.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id/repository/how-to-get-minecraft-windows-10-for-free-with-java_GM479516143.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id//repository/minecraft-windows-10-free-with-java_GM479516143.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id//repository/free-spins-on-coin-master-link_GM406889139.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id/repository/coin-master-hack-program_GM406889139.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id/repository/robux-generator-without-human-verification_GM431946152.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id//repository/body-roblox_GM431946152.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id//repository/coin-master-daily-free-spins-and-coins-2021_GM406889139.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id/repository/coin-master-link-spin_GM406889139.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id//repository/minecraft-pe-hacked-client-download_GM479516143.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id/repository/coin-master-hack-2021-apk_GM406889139.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id//repository/how-to-hack-in-arsenal_GM431946152.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
stream_004_off0000511d.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x511D 26388 bytes
SHA-256: ee04d3919e6aae18042e9458cda1a0ab2574f2592dc99a8cf9baba7d1b56d14c
font_01_sfnt_off00008be8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8BE8 2880 bytes
SHA-256: b053084cafd01c649462d87667ba56c569d6480ce60e7d20ae57ef6124cf178e
font_02_sfnt_off000095d3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x95D3 18632 bytes
SHA-256: 21453a49cd95b47374badb5f9754a763ab250e679095952556df99ea2beff8a3