Malicious PDF — malware analysis report

Static analysis result for SHA-256 53b28b058069eae6…

MALICIOUS

PDF

36.2 KB Created: 2021-07-06 05:04:16 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 50541709b33f85b280c835e47be9d08c SHA-1: c4b04aec1df87b3099c59c038568148473a7787a SHA-256: 53b28b058069eae6cafc2ce87373b5762418f10be82a6e160bab070a9fec4762
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/431946152/how-to-get-free-robux-without-verifying-2021-game-hack PDF link annotation
    • http://www.fkunismuh.org/perpustakaan/repository/do-people-hack-into-roblox-servers-and-watch-u_GM431946152.pdfIn PDF document text
    • http://fkunismuh.org/perpustakaan//repository/ios-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://fkunismuh.org/perpustakaan//repository/how-to-get-minecraft-pe-for-free_GM479516143.pdfIn PDF document text
    • http://fkunismuh.org/perpustakaan//repository/free-spins-on-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://fkunismuh.org/perpustakaan/repository/free-coin-and-spin-for-coin-master_GM406889139.pdfIn PDF document text
    • http://fkunismuh.org/perpustakaan/repository/coin-master-free-spin-trick_GM406889139.pdfIn PDF document text
    • http://www.fkunismuh.org/perpustakaan/repository/how-to-get-free-shields-on-coin-master_GM406889139.pdfIn PDF document text
    • http://www.fkunismuh.org/perpustakaan/repository/how-to-hack-coin-master-facebook_GM406889139.pdfIn PDF document text
    • http://fkunismuh.org/perpustakaan//repository/free-robux-without-human-verification_GM431946152.pdfIn PDF document text
    • http://fkunismuh.org/perpustakaan/repository/how-to-hack-coin-master-android_GM406889139.pdfIn PDF document text
    • http://www.fkunismuh.org/perpustakaan/repository/earn-robux-today_GM431946152.pdfIn PDF document text
    • http://www.fkunismuh.org/perpustakaan/repository/coin-master-spin-hack-no-verification_GM406889139.pdfIn PDF document text
    • http://www.fkunismuh.org/perpustakaan/repository/hacks-for-roblox-v5-fast-and-furious-updates_GM431946152.pdfIn PDF document text
    • http://www.fkunismuh.org/perpustakaan/repository/free-spin-gratis-coin-master_GM406889139.pdfIn PDF document text
    • http://www.fkunismuh.org/perpustakaan/repository/how-to-hack-peoples-roblox-accounts_GM431946152.pdfIn PDF document text
    • http://fkunismuh.org/perpustakaan//repository/coin-master-free-spins-bit-ly_GM406889139.pdfIn PDF document text
    • http://fkunismuh.org/perpustakaan/repository/minecraft-java-free_GM479516143.pdfIn PDF document text
    • http://www.fkunismuh.org/perpustakaan/repository/roblox-kazotsky-kick-script-pastebin-hack_GM431946152.pdfIn PDF document text
    • http://www.fkunismuh.org/perpustakaan/repository/google-play-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://fkunismuh.org/perpustakaan/repository/how-to-get-free-things-on-roblox_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000031c9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31C9 23076 bytes
SHA-256: 47660d9a87c5ff2664fe4f50725a6f39bd17bbd5afdf299d869bb1b59a5b4e56
font_01_sfnt_off0000653a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x653A 20184 bytes
SHA-256: da7d406aba47eea6317da3ede96973437af681d442b83efbb40dfbc95f86b21f

Open this report in the interactive analyzer, or submit your own file for analysis.