Malicious PDF — malware analysis report

Static analysis result for SHA-256 6cb241251716224c…

MALICIOUS

PDF

35.8 KB Created: 2021-07-07 01:03:35 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: fa346dc926d47f5acfe61f357d724ffe SHA-1: 38c796689a98f7ca135f17e1fd033ec3060a70e4 SHA-256: 6cb241251716224cb6422ef7b05e51956eb8e19316f6978c80119d3eb3d97b0c
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure for a 'Free Robux Generator' which redirects to a malicious URL. The document body and heuristics indicate a social engineering tactic to trick users into visiting a potentially harmful site. No scripts were extracted, but the embedded URLs and the nature of the lure suggest a phishing or scam attempt.

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/431946152/free-robux-generator-no-human-verification-2021-game-hack PDF link annotation
    • https://man1bengkulu.xyz/__statics/gudangsoal/files/a-hacker-in-roblox_GM431946152.pdfIn PDF document text
    • https://man1bengkulu.xyz/__statics/gudangsoal/files/earn-robux-now_GM431946152.pdfIn PDF document text
    • https://man1bengkulu.xyz/__statics/gudangsoal/files/free-robux-generator-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • https://man1bengkulu.xyz/__statics/gudangsoal/files/how-to-get-free-unlimited-robux_GM431946152.pdfIn PDF document text
    • https://man1bengkulu.xyz/__statics/gudangsoal/files/how-to-get-free-robux-december-2021_GM431946152.pdfIn PDF document text
    • https://man1bengkulu.xyz/__statics/gudangsoal/files/hack-coin-master-apk-33_GM406889139.pdfIn PDF document text
    • https://man1bengkulu.xyz/__statics/gudangsoal/files/free-robux-2021-new-no-survey_GM431946152.pdfIn PDF document text
    • https://man1bengkulu.xyz/__statics/gudangsoal/files/tiktok-viewer-free_GM835599320.pdfIn PDF document text
    • https://man1bengkulu.xyz/__statics/gudangsoal/files/free-spins-coin-master-no-survey_GM406889139.pdfIn PDF document text
    • https://man1bengkulu.xyz/__statics/gudangsoal/files/free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • https://man1bengkulu.xyz/__statics/gudangsoal/files/minecraft-story-mode-free_GM479516143.pdfIn PDF document text
    • https://man1bengkulu.xyz/__statics/gudangsoal/files/haktuts-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://man1bengkulu.xyz/__statics/gudangsoal/files/minecraft-classic-free_GM479516143.pdfIn PDF document text
    • https://man1bengkulu.xyz/__statics/gudangsoal/files/robux-generator_GM431946152.pdfIn PDF document text
    • https://man1bengkulu.xyz/__statics/gudangsoal/files/https-webrobloxcom-games-2021202119-freeadmin-play-this-game-friends_GM431946152.pdfIn PDF document text
    • https://man1bengkulu.xyz/__statics/gudangsoal/files/can-i-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • https://man1bengkulu.xyz/__statics/gudangsoal/files/coin-master-free-spins-link-no-verification-2021_GM406889139.pdfIn PDF document text
    • https://man1bengkulu.xyz/__statics/gudangsoal/files/free-coin-spin_GM406889139.pdfIn PDF document text
    • https://man1bengkulu.xyz/__statics/gudangsoal/files/easiest-way-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://man1bengkulu.xyz/__statics/gudangsoal/files/roblox-online-hack-for-free-robux_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_off00003221.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3221 23092 bytes
SHA-256: ee4c4ac707c143b63b10c568fafd04d3dac3c0ca331bab2f2e47796f1fb65ce7
font_01_sfnt_off000064f8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64F8 19736 bytes
SHA-256: 09f061b847c63ff59f035118bd628253d90c30315b77b042e81f05fdb0d3e9b1

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