Malicious PDF — malware analysis report

Static analysis result for SHA-256 907772290a957847…

MALICIOUS

PDF

48.7 KB Created: 2021-05-11 07:03:19 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-07
MD5: 411ff992da17844f8832e9cbe875e7d1 SHA-1: c1b0a2e06f7c8308c325771cc76cc94a8b86317e SHA-256: 907772290a9578474c3dd41297fa74e605a3c9af017fd1de31238e7a375f4c73
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure for a 'Robux Hack Free Robux' generator, which is a common social engineering tactic to trick users into visiting malicious websites. The primary malicious URL identified is https://netcdn.xyz/app/431946152/robux-hack-free-robux-game-hack. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest a potential for JavaScript execution or redirection to a malicious payload. The ML classifier also flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8642

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/431946152/robux-hack-free-robux-game-hack PDF link annotation
    • https://repository.stikesindramayu.ac.id/repository/how-long-is-the-minecraft-free-trial_GM479516143.pdfIn PDF document text
    • https://repository.stikesindramayu.ac.id/repository/coin-master-hack-ios-10_GM406889139.pdfIn PDF document text
    • https://repository.stikesindramayu.ac.id/repository/coin-master-links-free-spins_GM406889139.pdfIn PDF document text
    • https://repository.stikesindramayu.ac.id/repository/a-lot-of-robux_GM431946152.pdfIn PDF document text
    • https://repository.stikesindramayu.ac.id/repository/how-to-hack-roblox-accounts-2021_GM431946152.pdfIn PDF document text
    • https://repository.stikesindramayu.ac.id/repository/coin-master-free-cards-link_GM406889139.pdfIn PDF document text
    • https://repository.stikesindramayu.ac.id/repository/coinmasterdailyfreespins-com_GM406889139.pdfIn PDF document text
    • https://repository.stikesindramayu.ac.id/repository/coin-master-hack-no-download_GM406889139.pdfIn PDF document text
    • https://repository.stikesindramayu.ac.id/repository/free-robux-hack-no-human-verification-or-survey_GM431946152.pdfIn PDF document text
    • https://repository.stikesindramayu.ac.id/repository/coin-master-sound-daily-free-spins-link-today_GM406889139.pdfIn PDF document text
    • https://repository.stikesindramayu.ac.id/repository/free-minecraft-thumbnails_GM479516143.pdfIn PDF document text
    • https://repository.stikesindramayu.ac.id/repository/coin-master-hack-apk-iphone_GM406889139.pdfIn PDF document text
    • https://repository.stikesindramayu.ac.id/repository/minecraft-free-school_GM479516143.pdfIn PDF document text
    • https://repository.stikesindramayu.ac.id/repository/free-robux-generator_GM431946152.pdfIn PDF document text
    • https://repository.stikesindramayu.ac.id/repository/coin-master-pro-hack_GM406889139.pdfIn PDF document text
    • https://repository.stikesindramayu.ac.id/repository/roblox-script-hacks_GM431946152.pdfIn PDF document text
    • https://repository.stikesindramayu.ac.id/repository/free-coin-master-coins_GM406889139.pdfIn PDF document text
    • https://repository.stikesindramayu.ac.id/repository/online-coin-master-free-spin-app_GM406889139.pdfIn PDF document text
    • https://repository.stikesindramayu.ac.id/repository/minecraft-nintendo-switch-digital-code-free_GM479516143.pdfIn PDF document text
    • https://repository.stikesindramayu.ac.id/repository/how-to-get-free-spins-in-coin-master-2021_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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004761.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4761 25500 bytes
SHA-256: bf77ec0ebf224a69430975aa24a6ae74c31bcfb6169b3eddc03efefb9298c37f
font_01_sfnt_off000080ef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x80EF 3992 bytes
SHA-256: 43e72e756231cfd354bd65c2ed3b09ad4eff56ad11e7f155ed2920e6bb7860dd
font_02_sfnt_off00008e11.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8E11 5696 bytes
SHA-256: 450e3ee45915afe13702bf1d587eb8b9ad88a8d2113419ac9f2fd116a828e139
font_03_sfnt_off00009b23.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9B23 18412 bytes
SHA-256: e7ad190f023b5a59f82d5d2304e728b1fb84096fbbeb22520bbc212286f43b51

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