Malicious PDF — malware analysis report

Static analysis result for SHA-256 ec06b0d152641131…

MALICIOUS

PDF

44.4 KB Created: 2021-05-16 03:33:39 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 0efc624823eb4bca500707fea4353f9c SHA-1: 15c9f1ee0b03e421a660d0c0d37584198db366a2 SHA-256: ec06b0d1526411310646a933746678ed8cbdad44f3d42a3ede668cbf80490772
122 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. It uses a fake-CAPTCHA lure. 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 5

  • 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.
  • Fake CAPTCHA / human verification prompt high SE_FAKE_CAPTCHA
    Document displays a fake CAPTCHA or human-verification prompt — used to trick users into running commands or pressing keyboard shortcuts
  • 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.xyz/app/431946152/how-to-get-free-robux-without-downloading-anything-game-hack PDF link annotation
    • https://kpu-tabanankab.go.id/new/public/ckfinder/userfiles/files/get-free-coin-master_GM406889139.pdfIn PDF document text
    • https://kpu-tabanankab.go.id/new/public/ckfinder/userfiles/files/free-spin-coin-master-link-today_GM406889139.pdfIn PDF document text
    • https://kpu-tabanankab.go.id/new/public/ckfinder/userfiles/files/how-to-get-1-million-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • https://kpu-tabanankab.go.id/new/public/ckfinder/userfiles/files/coin-master-free-spins-link-today-new_GM406889139.pdfIn PDF document text
    • https://kpu-tabanankab.go.id/new/public/ckfinder/userfiles/files/robuxmatchcon_GM431946152.pdfIn PDF document text
    • https://kpu-tabanankab.go.id/new/public/ckfinder/userfiles/files/i-robux_GM431946152.pdfIn PDF document text
    • https://kpu-tabanankab.go.id/new/public/ckfinder/userfiles/files/www-roblox-com-robux-free_GM431946152.pdfIn PDF document text
    • https://kpu-tabanankab.go.id/new/public/ckfinder/userfiles/files/free-spins_GM406889139.pdfIn PDF document text
    • https://kpu-tabanankab.go.id/new/public/ckfinder/userfiles/files/how-do-i-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • https://kpu-tabanankab.go.id/new/public/ckfinder/userfiles/files/hacks-for-coin-master_GM406889139.pdfIn PDF document text
    • https://kpu-tabanankab.go.id/new/public/ckfinder/userfiles/files/minecraft-free-apk-download-016-0_GM479516143.pdfIn PDF document text
    • https://kpu-tabanankab.go.id/new/public/ckfinder/userfiles/files/how-to-get-free-robux-without-human-verification_GM431946152.pdfIn PDF document text
    • https://kpu-tabanankab.go.id/new/public/ckfinder/userfiles/files/oprewards-free-robux_GM431946152.pdfIn PDF document text
    • https://kpu-tabanankab.go.id/new/public/ckfinder/userfiles/files/coin-master-free-spins-hack-apk-download_GM406889139.pdfIn PDF document text
    • https://kpu-tabanankab.go.id/new/public/ckfinder/userfiles/files/minecraft-dungeons-download-free_GM479516143.pdfIn PDF document text
    • https://kpu-tabanankab.go.id/new/public/ckfinder/userfiles/files/ultimate-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://kpu-tabanankab.go.id/new/public/ckfinder/userfiles/files/how-to-hack-coin-master-pc_GM406889139.pdfIn PDF document text
    • https://kpu-tabanankab.go.id/new/public/ckfinder/userfiles/files/free-spins-on-coin-master-generator_GM406889139.pdfIn PDF document text
    • https://kpu-tabanankab.go.id/new/public/ckfinder/userfiles/files/minecraft-xray-hack_GM479516143.pdfIn PDF document text
    • https://kpu-tabanankab.go.id/new/public/ckfinder/userfiles/files/coin-master-game-hacking-tricks_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
stream_003_off00004c8a.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4C8A 25148 bytes
SHA-256: 05cd579eb8fb1b62094cd2c12798cd068ff7383ef37c7089f6e90f6266d1fd0b
font_01_sfnt_off00008661.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8661 19880 bytes
SHA-256: b3cc443709e3d0792834aff36fc45ebf0729ec5a88bbf4f00dbe60b4c0075203

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