Malicious PDF — malware analysis report

Static analysis result for SHA-256 a970e88cc82fb3d6…

MALICIOUS

PDF

34.1 KB Created: 2021-07-07 00:32:11 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 6a3077431ffa6fbae4f1eeb281de985e SHA-1: 895a8741c770ac91ad4d777f0f01b1e9ae730380 SHA-256: a970e88cc82fb3d6ecabeca60a53fb5bccd9d5c71f6033da0182773b0d1e92b0
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. 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 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.tw/app/431946152/scripts-hack-for-roblox-r2da-game-hack PDF link annotation
    • http://library.gkigadingserpong.org/repository/best-minecraft-hacked-client_GM479516143.pdfIn PDF document text
    • http://library.gkigadingserpong.org/repository/free-roblox-card-codes-december-2021_GM431946152.pdfIn PDF document text
    • http://www.library.gkigadingserpong.org/repository/is-there-a-free-version-of-minecraft_GM479516143.pdfIn PDF document text
    • http://library.gkigadingserpong.org/repository/coin-master-free-spin-link-list_GM406889139.pdfIn PDF document text
    • http://library.gkigadingserpong.org/repository/how-to-get-free-robux-zephplayz_GM431946152.pdfIn PDF document text
    • http://www.library.gkigadingserpong.org/repository/coin-master-free-coins-and-spins_GM406889139.pdfIn PDF document text
    • http://library.gkigadingserpong.org/repository/how-to-get-free-minecraft-skins_GM479516143.pdfIn PDF document text
    • http://library.gkigadingserpong.org/repository/lucky-patcher-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://library.gkigadingserpong.org/repository/get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://library.gkigadingserpong.org/repository/what-is-the-fastest-way-to-get-xp-in-pokemon-go_GM1094591345.pdfIn PDF document text
    • http://www.library.gkigadingserpong.org/repository/coin-master-game-free_GM406889139.pdfIn PDF document text
    • http://library.gkigadingserpong.org/repository/robuxmatchcom-free-robux_GM431946152.pdfIn PDF document text
    • http://www.library.gkigadingserpong.org/repository/free-spins-for-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://www.library.gkigadingserpong.org/repository/mistplay-robux_GM431946152.pdfIn PDF document text
    • http://library.gkigadingserpong.org/repository/roblox-help-free-robux_GM431946152.pdfIn PDF document text
    • http://www.library.gkigadingserpong.org/repository/free-robux-apps-that-work_GM431946152.pdfIn PDF document text
    • http://library.gkigadingserpong.org/repository/roblox-military-simulator-hack-mecha_GM431946152.pdfIn PDF document text
    • http://library.gkigadingserpong.org/repository/hack-pacifico-2-roblox_GM431946152.pdfIn PDF document text
    • http://www.library.gkigadingserpong.org/repository/free-robux-co_GM431946152.pdfIn PDF document text
    • http://library.gkigadingserpong.org/repository/buy-tiktok-followers-free_GM835599320.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
stream_002_off00002ed3.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2ED3 21952 bytes
SHA-256: c59eebc94043b4d6422955e7284c90dc5dd8a12dc70811fb4e6243ff88028a72
font_01_sfnt_off00005f49.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F49 19324 bytes
SHA-256: 8a77952a1e7a1c56f52ea73eaacf714e940836165d0240e5e70748828a98ae44

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