Malicious PDF — malware analysis report

Static analysis result for SHA-256 bf200e008e97795c…

MALICIOUS

PDF

50.4 KB Created: 2021-05-13 01:51:37 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: dc5c03ae6144903f01ffa736dd20bf76 SHA-1: 9117b8f96a62d3e1973086804f9ceb5d061a63f4 SHA-256: bf200e008e97795c06c2a6169ba87d0e8864c83d5671887ebfc2ad1a55137974
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 0.8594

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/406889139/coin-master-free-spins-cheat-deutsch-game-hack PDF link annotation
    • http://www.kpud-gianyarkab.go.id/new/public/ckfinder/userfiles/files/free-roblox-app_GM431946152.pdfIn PDF document text
    • http://www.kpud-gianyarkab.go.id/new/public/ckfinder/userfiles/files/minecraft-pe-free_GM479516143.pdfIn PDF document text
    • http://www.kpud-gianyarkab.go.id/new/public/ckfinder/userfiles/files/free-robux-hacker-us_GM431946152.pdfIn PDF document text
    • http://www.kpud-gianyarkab.go.id/new/public/ckfinder/userfiles/files/minecraft-net-download-free_GM479516143.pdfIn PDF document text
    • http://www.kpud-gianyarkab.go.id/new/public/ckfinder/userfiles/files/free-robux-without-human-verification_GM431946152.pdfIn PDF document text
    • http://www.kpud-gianyarkab.go.id/new/public/ckfinder/userfiles/files/free-robux-codes-no-verification-2021_GM431946152.pdfIn PDF document text
    • http://www.kpud-gianyarkab.go.id/new/public/ckfinder/userfiles/files/minecraft-diamond-finder-hack_GM479516143.pdfIn PDF document text
    • http://www.kpud-gianyarkab.go.id/new/public/ckfinder/userfiles/files/coin-master-free-coins_GM406889139.pdfIn PDF document text
    • http://www.kpud-gianyarkab.go.id/new/public/ckfinder/userfiles/files/coin-master-hack-activegamer_GM406889139.pdfIn PDF document text
    • http://www.kpud-gianyarkab.go.id/new/public/ckfinder/userfiles/files/easy-robux-hack_GM431946152.pdfIn PDF document text
    • http://www.kpud-gianyarkab.go.id/new/public/ckfinder/userfiles/files/how-to-get-free-faces-on-roblox_GM431946152.pdfIn PDF document text
    • http://www.kpud-gianyarkab.go.id/new/public/ckfinder/userfiles/files/coin-master-free-spin-link-new_GM406889139.pdfIn PDF document text
    • http://www.kpud-gianyarkab.go.id/new/public/ckfinder/userfiles/files/coin-master-hack-xyz-apk-download_GM406889139.pdfIn PDF document text
    • http://www.kpud-gianyarkab.go.id/new/public/ckfinder/userfiles/files/coin-master-hack-version-2021-free-download_GM406889139.pdfIn PDF document text
    • http://www.kpud-gianyarkab.go.id/new/public/ckfinder/userfiles/files/free-generator_GM431946152.pdfIn PDF document text
    • http://www.kpud-gianyarkab.go.id/new/public/ckfinder/userfiles/files/coin-master-hack-spins-download_GM406889139.pdfIn PDF document text
    • http://www.kpud-gianyarkab.go.id/new/public/ckfinder/userfiles/files/daily-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://www.kpud-gianyarkab.go.id/new/public/ckfinder/userfiles/files/coin-master-hack-link-2021_GM406889139.pdfIn PDF document text
    • http://www.kpud-gianyarkab.go.id/new/public/ckfinder/userfiles/files/free-robux-no-email_GM431946152.pdfIn PDF document text
    • http://www.kpud-gianyarkab.go.id/new/public/ckfinder/userfiles/files/google-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00005204.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5204 24780 bytes
SHA-256: dcbb542c5343f13e223e7be568bd3be39a9a9f16af6cdc6174951a7c27d3647b
font_01_sfnt_off00008ae6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8AE6 4028 bytes
SHA-256: a17c2a746d49ac23b23e38a371e32fddecfcd91b10cf42ff6155bff6b8a07e91
font_02_sfnt_off00009887.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9887 2788 bytes
SHA-256: 6fd7c7f447d66842f81aa8cf197935b17f22157d0c7e9f95622df1b5b4ddf530
font_03_sfnt_off0000a277.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA277 18360 bytes
SHA-256: 29c800506a03a3e1cb5f7ed9e4ca185df1ecbea4e67b5de69ba2e14adc8da31f

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