Malicious PDF — malware analysis report

Static analysis result for SHA-256 c20201c1f27fd2b9…

MALICIOUS

PDF

43.3 KB Created: 2021-06-03 12:19:25 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 54870bebd54fd788ba6f8d36cf9d0a0b SHA-1: aa3c1593cd0af6f453b448fb4b537d67d0bcd3f5 SHA-256: c20201c1f27fd2b96f8716fe5d90839d78199fc293ac1fe7230b623d865a55af
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 0.9865

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/835599320/tiktok-free-2021-followers-game-hack PDF link annotation
    • https://lib.btkljogja.or.id/repository/how-to-get-free-robux-instantly_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/free-mojang-account-with-minecraft_GM479516143.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/free-roblox-boy-hair_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/coin-master-free-spin-and-coins-links_GM406889139.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/hacks-for-coin-master_GM406889139.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/free-robux-apk_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/links-to-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/how-to-get-free-robux-easy-hack_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/wwwcoin-master-hack-game-download_GM406889139.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/easy-robux-hack_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/free-spins-and-coins-coin-master-2021-link_GM406889139.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/robux-gift-card-free_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/free-robux-hack-no-verification_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/minecraft-hacks-list_GM479516143.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/coin-master-hack-apk_GM406889139.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/coin-master-free-spins-app_GM406889139.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/coin-master-15-free-spin-link-today_GM406889139.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/how-to-hack-coin-master-spin-ios_GM406889139.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/how-do-you-get-free-robux_GM431946152.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
stream_004_off00004e1c.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4E1C 24664 bytes
SHA-256: 619ee784bf1acdee1c057a60baa76c26c7f80297d063528adbd0ae442595ecd9
font_01_sfnt_off000086d4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x86D4 18096 bytes
SHA-256: c5564999293bc6aca466a0d09d811a867d5c4a94a4714293650c3217626b8ccd

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