Malicious PDF — malware analysis report

Static analysis result for SHA-256 4db663d547c605ce…

MALICIOUS

PDF

35.6 KB Created: 2021-07-05 20:55:19 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 805754b5d8b19f63b8d7df89981570e2 SHA-1: a8bb3fa47dbb41aa393e3512b0ac856789e049aa SHA-256: 4db663d547c605ce2516c0831612b73cc72f90bcef37b0a81cbc97136750a1c1
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-do-i-get-free-robux-on-roblox-game-hack PDF link annotation
    • http://perpustakaan.pn-tilamuta.go.id/repository/game-give-free-robux_GM431946152.pdfIn PDF document text
    • http://perpustakaan.pn-tilamuta.go.id/repository/free-robux-without-human-verification_GM431946152.pdfIn PDF document text
    • http://perpustakaan.pn-tilamuta.go.id/repository/coin-master-cheats-free_GM406889139.pdfIn PDF document text
    • http://perpustakaan.pn-tilamuta.go.id/repository/robux-2021_GM431946152.pdfIn PDF document text
    • http://perpustakaan.pn-tilamuta.go.id/repository/how-to-get-free-spins-on-coin-master-blogspot_GM406889139.pdfIn PDF document text
    • http://perpustakaan.pn-tilamuta.go.id/repository/where-is-the-free-apartments-in-mad-city-roblox_GM431946152.pdfIn PDF document text
    • http://perpustakaan.pn-tilamuta.go.id/repository/what-is-coin-master-app_GM406889139.pdfIn PDF document text
    • http://perpustakaan.pn-tilamuta.go.id/repository/coin-master-free-spins-daily-2021_GM406889139.pdfIn PDF document text
    • http://perpustakaan.pn-tilamuta.go.id/repository/coin-master-35-16-hack-apk_GM406889139.pdfIn PDF document text
    • http://perpustakaan.pn-tilamuta.go.id/repository/master-hack-coin_GM406889139.pdfIn PDF document text
    • http://perpustakaan.pn-tilamuta.go.id/repository/minecraft-windows-10-free-with-java_GM479516143.pdfIn PDF document text
    • http://perpustakaan.pn-tilamuta.go.id/repository/free-roblox-accounts-2021-with-robux_GM431946152.pdfIn PDF document text
    • http://perpustakaan.pn-tilamuta.go.id/repository/free-custom-minecraft-skins_GM479516143.pdfIn PDF document text
    • http://perpustakaan.pn-tilamuta.go.id/repository/coin-master-apk-hack_GM406889139.pdfIn PDF document text
    • http://perpustakaan.pn-tilamuta.go.id/repository/coin-master-spin-hack-no-human-verification_GM406889139.pdfIn PDF document text
    • http://perpustakaan.pn-tilamuta.go.id/repository/25-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://perpustakaan.pn-tilamuta.go.id/repository/hey-google-how-do-you-get-free-robux_GM431946152.pdfIn PDF document text
    • http://perpustakaan.pn-tilamuta.go.id/repository/roblox-weird_GM431946152.pdfIn PDF document text
    • http://perpustakaan.pn-tilamuta.go.id/repository/free-robux-hack-2021_GM431946152.pdfIn PDF document text
    • http://perpustakaan.pn-tilamuta.go.id/repository/coin-master-free-stuff_GM406889139.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_off0000327b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x327B 22804 bytes
SHA-256: 30fdcf6ee991853ed7e7bf0bd07b45a2666c058147c74ce19f6ccc21e5dbfac8
font_01_sfnt_off00006566.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6566 19228 bytes
SHA-256: e9643cf535cb35bfe77301aa7fad2e30087b9ada5d7646565701a14096303307

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