Malicious PDF — malware analysis report

Static analysis result for SHA-256 915b9ec2dfb8745e…

MALICIOUS

PDF

34.5 KB Created: 2021-07-08 00:01:38 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 62fad1db0309e97744716edaf9eafa50 SHA-1: fe860b84bdffaa2e470093a8514e12f3323a8183 SHA-256: 915b9ec2dfb8745ef4891e94c17d2683bfa29819d1e18ce7f79b4af7508f45f1
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/406889139/coin-master-hack-mod-apk-free-download-game-hack PDF link annotation
    • http://cintabaca.org/katalog/repository/free-robux-giveaway-everyone-will-get-robux-proof_GM431946152.pdfIn PDF document text
    • http://cintabaca.org/katalog/repository/completed-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://cintabaca.org/katalog/repository/coin-master-hack-spins-ios_GM406889139.pdfIn PDF document text
    • http://cintabaca.org/katalog//repository/get-me-robux-for-free_GM431946152.pdfIn PDF document text
    • http://cintabaca.org/katalog//repository/how-to-create-a-minecraft-server-for-free_GM479516143.pdfIn PDF document text
    • http://cintabaca.org/katalog/repository/cheat-engine-cheat-tables-roblox_GM431946152.pdfIn PDF document text
    • http://cintabaca.org/katalog/repository/how-to-get-free-robux-hack_GM431946152.pdfIn PDF document text
    • http://cintabaca.org/katalog/repository/coin-master-hack-spins-android_GM406889139.pdfIn PDF document text
    • http://cintabaca.org/katalog/repository/free-robux-master_GM431946152.pdfIn PDF document text
    • http://cintabaca.org/katalog/repository/best-free-roblox-outfits_GM431946152.pdfIn PDF document text
    • http://cintabaca.org/katalog/repository/como-tener-robux-gratis-sin-hack-ni-admin_GM431946152.pdfIn PDF document text
    • http://cintabaca.org/katalog/repository/roblox-how-to-change-your-skin-for-free_GM431946152.pdfIn PDF document text
    • http://cintabaca.org/katalog/repository/optifine-mcpe_GM479516143.pdfIn PDF document text
    • http://cintabaca.org/katalog/repository/roblox-kicked-by-server-cheat-engine_GM431946152.pdfIn PDF document text
    • http://cintabaca.org/katalog//repository/free-shields-coin-master_GM406889139.pdfIn PDF document text
    • http://cintabaca.org/katalog/repository/coin-master-hack-download-2021_GM406889139.pdfIn PDF document text
    • http://cintabaca.org/katalog/repository/noob-vs-pro-vs-hacker-roblox_GM431946152.pdfIn PDF document text
    • http://cintabaca.org/katalog/repository/roblox-music-hack_GM431946152.pdfIn PDF document text
    • http://cintabaca.org/katalog//repository/how-to-get-free-premium-roblox_GM431946152.pdfIn PDF document text
    • http://cintabaca.org/katalog/repository/coin-master-hack-without-verification-code_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_off00002fa8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FA8 22644 bytes
SHA-256: d15b13fea4e7f58d7aa529ed2249c8110050c37b5457f3f56b1e525966f40a12
font_01_sfnt_off00006233.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6233 18924 bytes
SHA-256: 6f4418fdf2b7e63a54348beb1bcc63faaf8dd422a5e9a8e1d4e79ebabab3b494

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