Malicious PDF — malware analysis report

Static analysis result for SHA-256 42506651f667b81e…

MALICIOUS

PDF

34.6 KB Created: 2021-07-01 15:11:37 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 72fe2c5dacbe7461ff9df5c93a6209b0 SHA-1: d351e07dfb6606dc9be8173e782a8947043119e4 SHA-256: 42506651f667b81e9703ca0fe33021392ae527878e6881bde7ba7e93ab4b58d0
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure for a 'free generator / game hack' which redirects to a suspicious URL. This suggests the document is designed to trick users into visiting a site that likely hosts malware or engages in phishing. No scripts were extracted, but the embedded URLs and the heuristic firings strongly indicate a malicious intent to redirect users to potentially harmful content.

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/get-28-robux-hack-game-hack PDF link annotation
    • https://c2o-library.net/catalog/repository/hack-compt-roblox_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/booga-booga-roblox-cheats_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/code-for-roblox-robx-hack_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/free-robux-hack-online_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/need-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/free-robux-generator-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/free-robux-codes-december-2021_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/free-robux-generator-no-human-verification-fpr-real_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/apoculopse-rising-roblox-hack-script_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/free-robux-no-human-verification-2021-ios_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/how-to-hack-roblox-robux-no-download_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/rbx-land-free-robux_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/discord-roblox-hack-sellers_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/roblox36com-free-robux_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/coin-master-hack-mod-apk-2021-download_GM406889139.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/free-robux-for-free_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/free-roblox-clothes-for-your-avatar_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/roblox-com-download-free_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/how-to-cheat-in-roblox_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/free-executor-download-for-roblox_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_off00002fb3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FB3 22324 bytes
SHA-256: 2701c9f2d8fb3531ab8f23800866b9f242b7cbfe5e0838fcd21b1d2c6880c3b2
font_01_sfnt_off00006173.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6173 19160 bytes
SHA-256: e7889cb2072ac83bc3bb4e0bdb01dfff8c363c97b225b9809d1a832c3d52dabf

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