Malicious PDF — malware analysis report

Static analysis result for SHA-256 2a88dd0c079d0efe…

MALICIOUS

PDF

33.4 KB Created: 2021-06-23 13:32:30 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-07
MD5: 3f5bb58d6cedd3708afed9d0f9565b8b SHA-1: 88cf6de9bd5ef121708beff9a478570c071430be SHA-256: 2a88dd0c079d0efe0742a6f03a1bb35d85dae26d405d180971f1c8dbdf20d44f
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous links and text related to game hacks and free in-game currency for popular games like Roblox and Minecraft. The primary link, http://netcdn.co/app/431946152/roblox-how-to-get-free-hats-on-roblox-high-school-game-hack, is identified as a lure for game hacks. While no scripts were explicitly extracted, the presence of embedded URLs and the nature of the content strongly suggest a phishing or malware distribution attempt, likely masquerading as a guide or generator.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9824

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/roblox-how-to-get-free-hats-on-roblox-high-school-game-hack PDF link annotation
    • https://c2o-library.net/catalog/repository/coin-master-free-link-today_GM406889139.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/how-to-hack-someones-roblox-account_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/free-robux-join-group_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/how-to-get-free-robux-easy-and-fast-2021_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/brickmaster2021-free-robux_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/how-to-get-minecraft-for-free-on-ps4_GM479516143.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/robux-for-surveys_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/how-to-earn-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/roblox-hack-generator_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/roblox-jump-hack-2021_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/web-robux-free_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/inject-hack-roblox-code_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/download-hack-coin-master_GM406889139.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/roblox-help-free-robux_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/my-minecraft-account-was-hacked_GM479516143.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/how-to-get-free-robux-easy-way-2021_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/free-minecraft-maps_GM479516143.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/how-to-get-free-robux-no-scam_GM431946152.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/pokemon-go-free-avatar-items_GM1094591345.pdfIn PDF document text
    • https://c2o-library.net/catalog/repository/get-minecraft-windows-10-free_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_off00002af7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2AF7 22488 bytes
SHA-256: 6f12bd12799df568ac1521ed908e01ff404ab26bb6c75e27adf775e41c6ba565
font_01_sfnt_off00005d5f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D5F 19204 bytes
SHA-256: b48d2ab40db3618a7ac7b7e4a3359441da9a5169a45013941416e331c42b48da

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