Malicious PDF — malware analysis report

Static analysis result for SHA-256 ebed5c6bea5ad2f9…

MALICIOUS

PDF

36.7 KB Created: 2021-06-20 08:07:26 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 0a1eab42c38e586ecdf10d039e5399e8 SHA-1: 9bc72fe92c0fa38a7023ad6c0324ccaea642abfd SHA-256: ebed5c6bea5ad2f9d8c77f0a51f4c6e775b8cb810fef1eea7fb93a51511e62bc
122 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF document was flagged as malicious by an ML classifier. It uses a password-protected-archive lure. 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 5

  • 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.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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/free-robux-hack-no-survey-no-password-for-real-game-hack PDF link annotation
    • https://c2o-library.net/catalog/repository/suicideboys-hack-slash-roblox-id_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/coin-master-free-attack-link_GM406889139.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/how-to-hack-a-minecraft-account_GM479516143.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/free-spins-and-coins-coin-master-2021-link_GM406889139.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/roblox-games-with-free-vip-servers_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/how-to-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/pokemon-go-free-daily-box_GM1094591345.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/how-to-get-free-robux-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/roblox-how-to-get-free-gear-2021_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/free-robux-legit-2021-august_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/earn-free-robux_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/roblox-free-hats-2021_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/coin-master-free-spins-1-coin-master_GM406889139.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/how-to-get-hacks-on-minecraft_GM479516143.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/free-roblox-card-1m-codes_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/coin-master-hack-without-verification-or-downloading-apps_GM406889139.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/hack-robux-into-roblox-account_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/how-do-people-get-robux-without-hacking_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/fre-click-tp-roblox-script_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/roblox-free-roblox_GM431946152.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_off000036ce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x36CE 22372 bytes
SHA-256: 15830186a6e6c045ead7d10fa4062bf3a5f56a1e23190ad3b07b6216b883eee6
font_01_sfnt_off00006871.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6871 19744 bytes
SHA-256: c53fb8ab8348b1e9599be342918f8d2890fc94bc19813e90480971c7ea433298

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