Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd28b9ff6ba17306…

MALICIOUS

PDF

34.3 KB Created: 2021-07-05 13:54:43 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 0452fe0416c46ce26f3fb1a4b0319fbd SHA-1: d8dc9be4eb5ba73e8fe383142309ffd30c0474e5 SHA-256: cd28b9ff6ba17306e5e891fa13344e673e7525db02af351f59ed80d507b5d8d0
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/hack-coin-master-1-game-hack PDF link annotation
    • http://slim.sisminkada.net/repository/coin-master-online-hack-no-survey-no-password_GM406889139.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/free-robux-kid-friendly-no-human-verification_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/how-to-actually-get-free-robux_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/april-fools-day-2021-hack-roblox_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/how-to-et-free-robux-on-roblox-and-bc_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/roblox-comcom_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/how-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/roblox-free-robux-generator_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/how-to-get-robux-fast_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/roblox-hacks-and-cheats_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/hightlighter-player-roblox-cheat_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/how-to-get-free-robux-without-verifying_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/roblox-with-cheat-engine_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/how-to-get-more-robux_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/how-to-hack-a-roblox-user_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/has-roblox-been-hacked-before_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/how-to-get-1-million-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/free-robux-geerator_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/roblox-cheat_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/free-minecraft-thumbnails_GM479516143.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000031ec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31EC 22520 bytes
SHA-256: c274323b17b319dfd20f893966ca057b0c55e7c61d9f017650a63caf7f7be489
font_01_sfnt_off000063f5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63F5 18112 bytes
SHA-256: 8798f2c46357f6d617dd0237e320daff08fbf1961369e9d230ff020b883162dd

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