Malicious PDF — malware analysis report

Static analysis result for SHA-256 11a04b8d3f9baa06…

MALICIOUS

PDF

34.9 KB Created: 2021-07-06 04:03:26 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: cea2c20e6223c88d2e6582fe145f99b1 SHA-1: 817f33bed685cfdb77c446eab708332679fc684f SHA-256: 11a04b8d3f9baa0699867798ed11237999f56fc172ac322de201e976237129d7
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.tw/app/406889139/haktuts-coin-master-spins-game-hack PDF link annotation
    • https://c2o-library.net/catalog/repository/minecraft-hacked-client-112-2_GM479516143.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/how-to-get-free-robux-pc-2021_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/roblox-cheat-engine-tablre-and-bypass_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/coin-master-cheats-free_GM406889139.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/minecraft-thumbnail-maker-free_GM479516143.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/free-player-points-roblox_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/free-punch-animation-roblox_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/download-cheat-engine-64-roblox_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/free-robux-needs-password_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/hack-coin-pro-coin-master_GM406889139.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/how-to-hack-funnehcake-on-roblox_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/fan-page-coin-master_GM406889139.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/free-robux-commercial_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/www-bandicam-com-roblox-hack_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/how-to-get-minecraft-for-free-2021_GM479516143.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/new-free-robux_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/free-spins-coin-master-cheats_GM406889139.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/roblox-cheat-codes_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/how-many-villages-are-in-coin-master_GM406889139.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/free-roblox-accounts-with-robux-that-work-2021_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_off00003276.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3276 22864 bytes
SHA-256: 0f896dee1690c107cebc11c0d5f7736281b06a76fd2434f73376b6207b137172
font_01_sfnt_off000065b7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65B7 18320 bytes
SHA-256: 4d6b5a7e8d71a8cfca2907d7514c709552786c5f23281e6f9e82b92694f55921

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