Malicious PDF — malware analysis report

Static analysis result for SHA-256 bd8c7b08f9315b2c…

MALICIOUS

PDF

34.4 KB Created: 2021-06-20 05:40:30 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-04
MD5: d35949b5ed010b3af9aec316fdc3733c SHA-1: 67e5f3b5559cbc06b34c05028ccef6460a67d79a SHA-256: bd8c7b08f9315b2c22b1734307937b6373caf2fb5afb11bf000dcc8896df0fd1
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/roblox-free-robux-2021-game-hack PDF link annotation
    • http://library.ulb.ac.id/repository/free-robux-hackget-up-to-22-500-free-robux-today_GM431946152.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/fly-hack-roblox-2021_GM431946152.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/pastebin-free-roblox-usernames_GM431946152.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/roblox-dayz-cheat-codes-xbox-one_GM431946152.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/free-roblox-phantom-forces-hacks_GM431946152.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/roblox-hax_GM431946152.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/avatar-the-last-air-bender-roblox-hacks_GM431946152.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/free-roblox-clothes-templates_GM431946152.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/coin-master-free-spins-2021-app_GM406889139.pdfIn PDF document text
    • http://library.ulb.ac.id//repository/free-robux-on-ipad_GM431946152.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/2-accounts-on-one-pc-for-hack-roblox_GM431946152.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/coin-master-mod-apk-free-download_GM406889139.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/huskybuscom-free-robux_GM431946152.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/free-robux-generator-without-survey_GM431946152.pdfIn PDF document text
    • http://library.ulb.ac.id//repository/what-is-exploiting-in-roblox_GM431946152.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/minecraft-hack-mod_GM479516143.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/toolbox-apk_GM479516143.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/coin-master-hack-activegamer_GM406889139.pdfIn PDF document text
    • http://library.ulb.ac.id//repository/tiktok-free-usernames_GM835599320.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/roblox-player-exe-free_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_off0000304e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x304E 22004 bytes
SHA-256: 2a6e8ff566a454aaa80cc29300f42603dbe2f8aa4e7db0db7c0dc3e121d68d5b
font_01_sfnt_off000060fc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60FC 19192 bytes
SHA-256: 81aedb827eddc4aa3e52835133cb1ccd364d29e7d0e97db71b267390cee8f151

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