Malicious PDF — malware analysis report

Static analysis result for SHA-256 80a624bab50cefdd…

MALICIOUS

PDF

34.3 KB Created: 2021-06-30 02:59:33 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 7eba71479fc02894d6c3c1f339373f2c SHA-1: 9ba7433738293e401ffd44120b28c8fd9cca9810 SHA-256: 80a624bab50cefddad453644b248e1e1fadf382c2c1ec0674a5f0b75478c1127
122 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links, including one at http://netcdn.co/app/431946152/how-to-hack-any-game-roblox-game-hack, which is identified as a lure for game hacks. The document body and heuristics suggest a social engineering tactic to trick users into downloading potentially malicious content or visiting a compromised site. No scripts were extracted, but the presence of external links and the 'game hack' lure strongly indicate a malicious intent.

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/how-to-hack-any-game-roblox-game-hack PDF link annotation
    • https://c2o-library.net/catalog/repository/haktuts-coin-master-spins_GM406889139.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/earn-free-robux-for-roblox_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/how-to-get-free-emotes-in-roblox_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/free-robux-hack-no-survey-no-password-for-real_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/free-roblox-catolog-codes_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/roblox-counter-blox-hacken-aimbot-wallhack_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/free-roblox-generator-no-download_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/coin-master-game-2021-free-spin-link_GM406889139.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/robux-hacking-bans_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/roblox-free-cape_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/coin-master-spin-link-today_GM406889139.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/how-can-i-get-free-robux_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/free-spins-for-coin-master-that-work_GM406889139.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/wurst-client-18-9_GM479516143.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/7-year-old-roblox_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/how-to-hack-roblox-accounts-passwords_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/rbxoffers-com-free-robux_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/free-robux-discord_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/coin-master-free-spins-and-coins-2021_GM406889139.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/roblox-script-hacks_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_off00003039.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3039 21828 bytes
SHA-256: 621c57698e934e785aa5cfc276bb2b1dae079351b3764e64e51eb30be3448153
font_01_sfnt_off0000606d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x606D 19260 bytes
SHA-256: 54d785d04f9e472f2cdb6a3361ccf87bb9fe4f73197023de63015676262c0a0e

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