Malicious PDF — malware analysis report

Static analysis result for SHA-256 1a5586a28708fa1f…

MALICIOUS

PDF

37.7 KB Created: 2021-06-28 13:14:12 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 7073b982a6835d60bcffd0d130fe2bc8 SHA-1: 335a5e2a8d7f352d76f4171270b57fdf4a650879 SHA-256: 1a5586a28708fa1f86a3631dd59c85a7fb80570cc26d9b3058edbfd7954ac7b3
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document uses a lure of 'Free Robux And Builders Club' to entice users to click on embedded links. The primary link, http://netcdn.co/app/431946152/free-robux-and-builders-club-game-hack, is identified as a high-risk redirector. The document's structure and embedded links suggest it is designed to lead users to potentially malicious websites, likely for credential harvesting or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9981

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.co/app/431946152/free-robux-and-builders-club-game-hack PDF link annotation
    • http://wadimor.co.id/media/imagesfiles/coin-master-free-spins-link-june-2021_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/coin-master-hack-2021-ios_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/how-to-change-your-username-on-roblox-for-free-2021_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/pro-skin-free-roblox_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/free-spins-for-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/spin-hack-for-coin-master_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/spin-free-coin-master_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/coin-master-village-4_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/robux-free-co_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/coinmaster-com_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/coin-master-cheat-codes-free_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/b-tool-hack-in-roblox-link-jailbreak-heli-bomb_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/roblox-player-radar-hack_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/can-you-get-robux-for-free_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/how-to-get-free-robux-no-hacks-2021_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/coin-master-for-pc-free-download_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/is-tiktok-free-to-install_GM835599320.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/roblox-hacked-version-download_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/free-robux-without-any-verification_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/coin-master-hack-here_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_off00003cf1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3CF1 22212 bytes
SHA-256: b1d519af94dcc32f94dcab70b1b73198c10f7600c4946b04c46c369fef3659aa
font_01_sfnt_off00006e62.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E62 19084 bytes
SHA-256: 9a5f7126d6568673136e73156fc9ff4c821bd4c917cdfd39b142ee2b7bcd53b9