Malicious PDF — malware analysis report

Static analysis result for SHA-256 3c9be783dab4f7d4…

MALICIOUS

PDF

35.0 KB Created: 2021-06-23 15:33:28 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 703168d9299b268c3cb078a99dfbbb18 SHA-1: 441c0d5c7f1cb53bd1ffce3b9b5a13ba1046727c SHA-256: 3c9be783dab4f7d445ce82ffed85c442c1b00708afd8c23ae10d871568b279de
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.co/app/431946152/who-to-get-robux-for-free-game-hack PDF link annotation
    • http://mtsn-baranti.com/perpus/repository/best-free-avatar-on-roblox_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/minecraft-hacked-client_GM479516143.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/is-windows-10-minecraft-free_GM479516143.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/robux-for-kids_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/coin-master-free-spins-link-today-instagram_GM406889139.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/what-is-pubg-uc-carding_GM1330123889.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/coin-master-free-coins-link-2021_GM406889139.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/coin-master-hack-ios-apk_GM406889139.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/how-to-get-robux-free-and-easy_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/coin-master-hack-ios-10_GM406889139.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/free-roblox-acc_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/free-tiktok-fans-no-human-verification-or-downloading-apps_GM835599320.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/free-spin-sites-for-coin-master_GM406889139.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/hack-tool-roblox-2021_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/hacks-master-coin_GM406889139.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/how-to-run-lua-script-roblox-hacks_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/roblox-muder-mystery-how-to-get-godly-for-free_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/roblox-hack-no-scam_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/free-spin-link-for-coin-master-game_GM406889139.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/cheat-engine-roblox-bypass-2021-june_GM431946152.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_off000030ca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30CA 22784 bytes
SHA-256: ae984be85919e3b5b06ab3b0fe483b1e76f893ed6b5901de7b2eacc6e7a4c01a
font_01_sfnt_off0000639b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x639B 19184 bytes
SHA-256: 8e5deaed0d5f73f9df4b1456ebe88e6278b5b0ce98c5bbf46c567f2d6d7eaf20

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