Malicious PDF — malware analysis report

Static analysis result for SHA-256 fb1fca8ee1743d4f…

MALICIOUS

PDF

45.1 KB Created: 2021-05-10 16:07:51 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-04
MD5: f213a4081561fb5ee3c600c861d2aae4 SHA-1: 8bb427155d449dd1e67980df5111d32a42b23111 SHA-256: fb1fca8ee1743d4ffd8ebfc729cefbaab4e6c2f6b8d5079f73db5e95c72cfe62
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 https://netcdn.xyz/app/406889139/coin-master-free-spins-link-today-new-2021-game-hack PDF link annotation
    • https://www.sman3amlapura.sch.id/new/public/ckfinder/userfiles/files/coin-master-heaven-links_GM406889139.pdfIn PDF document text
    • https://www.sman3amlapura.sch.id/new/public/ckfinder/userfiles/files/cheats-for-coin-master_GM406889139.pdfIn PDF document text
    • https://www.sman3amlapura.sch.id/new/public/ckfinder/userfiles/files/coin-master-free-spins-link-download-for-iphone_GM406889139.pdfIn PDF document text
    • https://www.sman3amlapura.sch.id/new/public/ckfinder/userfiles/files/how-do-you-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • https://www.sman3amlapura.sch.id/new/public/ckfinder/userfiles/files/coin-master-hack-apk-35-18_GM406889139.pdfIn PDF document text
    • https://www.sman3amlapura.sch.id/new/public/ckfinder/userfiles/files/roblox-hax_GM431946152.pdfIn PDF document text
    • https://www.sman3amlapura.sch.id/new/public/ckfinder/userfiles/files/how-to-get-free-robux-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • https://www.sman3amlapura.sch.id/new/public/ckfinder/userfiles/files/coin-master-hack-safe_GM406889139.pdfIn PDF document text
    • https://www.sman3amlapura.sch.id/new/public/ckfinder/userfiles/files/minecraft-svg-free_GM479516143.pdfIn PDF document text
    • https://www.sman3amlapura.sch.id/new/public/ckfinder/userfiles/files/how-to-get-real-robux_GM431946152.pdfIn PDF document text
    • https://www.sman3amlapura.sch.id/new/public/ckfinder/userfiles/files/coin-master-hack-tool-2021_GM406889139.pdfIn PDF document text
    • https://www.sman3amlapura.sch.id/new/public/ckfinder/userfiles/files/coin-master-free-spin-and-coins-links_GM406889139.pdfIn PDF document text
    • https://www.sman3amlapura.sch.id/new/public/ckfinder/userfiles/files/show-me-how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.sman3amlapura.sch.id/new/public/ckfinder/userfiles/files/how-to-get-free-roblox_GM431946152.pdfIn PDF document text
    • https://www.sman3amlapura.sch.id/new/public/ckfinder/userfiles/files/hack-roblox-players_GM431946152.pdfIn PDF document text
    • https://www.sman3amlapura.sch.id/new/public/ckfinder/userfiles/files/hack-minecraft_GM479516143.pdfIn PDF document text
    • https://www.sman3amlapura.sch.id/new/public/ckfinder/userfiles/files/how-to-get-free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://www.sman3amlapura.sch.id/new/public/ckfinder/userfiles/files/easy-way-to-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_003_off00004c40.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4C40 28504 bytes
SHA-256: ab99ddedcbabba842c03743c82777376e6dff790ce247960920a0b4dbeb99c1e
font_01_sfnt_off00008bc6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8BC6 18976 bytes
SHA-256: 9ab4b87832590d82aec569b9c8693c2016d5d9151569e528de1ed13ad8a1cb2c

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