Malicious PDF — malware analysis report

Static analysis result for SHA-256 98920a64a7b0f1c4…

MALICIOUS

PDF

44.3 KB Created: 2021-06-09 04:42:34 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 209346ae75fce323fd7c6694e0c8ab27 SHA-1: 15e3e202fa65589dca8ca65b6a9ccb2c8921da8f SHA-256: 98920a64a7b0f1c445b3de519ae7866a0f4290cbf1ccb26a7582d77da1141eb9
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to external websites, with one prominent URL directly advertising game hacks. The ML classifier also flagged this PDF as malicious. While no scripts were explicitly extracted, the presence of embedded URLs and the lure of game exploits suggest a phishing or scam attempt designed to redirect users to potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

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 https://netcdn.tw/app/431946152/roblox-boga-boga-infinite-mojo-hack-game-hack PDF link annotation
    • https://unsla.uns.ac.id:443/pgsd/repository/roblox-controversy_GM431946152.pdfIn PDF document text
    • https://unsla.uns.ac.id:443/pgsd/repository/how-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • https://unsla.uns.ac.id:443/pgsd/repository/google-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://unsla.uns.ac.id:443/pgsd/repository/free-robux-glitch_GM431946152.pdfIn PDF document text
    • https://unsla.uns.ac.id:443/pgsd/repository/hacks-master-coin_GM406889139.pdfIn PDF document text
    • https://unsla.uns.ac.id:443/pgsd/repository/free-spin-links-coin-master-october-30-2021_GM406889139.pdfIn PDF document text
    • https://unsla.uns.ac.id:443/pgsd/repository/coin-master-spin-hack_GM406889139.pdfIn PDF document text
    • https://unsla.uns.ac.id:443/pgsd/repository/roblox-its-free_GM431946152.pdfIn PDF document text
    • https://unsla.uns.ac.id:443/pgsd/repository/how-to-get-free-robux-gift-cards_GM431946152.pdfIn PDF document text
    • https://unsla.uns.ac.id:443/pgsd/repository/easy-robux-hack_GM431946152.pdfIn PDF document text
    • https://unsla.uns.ac.id:443/pgsd/repository/minecraft-windows-10-free_GM479516143.pdfIn PDF document text
    • https://unsla.uns.ac.id:443/pgsd/repository/minecraft-free-apk_GM479516143.pdfIn PDF document text
    • https://unsla.uns.ac.id:443/pgsd/repository/do-you-get-minecraft-windows-10-for-free_GM479516143.pdfIn PDF document text
    • https://unsla.uns.ac.id:443/pgsd/repository/who-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://unsla.uns.ac.id:443/pgsd/repository/coin-master-free-spins-blogspot_GM406889139.pdfIn PDF document text
    • https://unsla.uns.ac.id:443/pgsd/repository/free-youtube-tiktok_GM835599320.pdfIn PDF document text
    • https://unsla.uns.ac.id:443/pgsd/repository/pokemon-go-free-gucci_GM1094591345.pdfIn PDF document text
    • https://unsla.uns.ac.id:443/pgsd/repository/coin-master-daily-free-spins-link-app-download_GM406889139.pdfIn PDF document text
    • https://unsla.uns.ac.id:443/pgsd/repository/earn-free-robux-for-roblox_GM431946152.pdfIn PDF document text
    • https://unsla.uns.ac.id:443/pgsd/repository/pubg-mobile-74-uc_GM1330123889.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_004_off00004f18.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4F18 24788 bytes
SHA-256: efd48b5c444c05f3d0ff73d355b702d2c4772d52be9af1322f9f82030a2bdcc2
font_01_sfnt_off00008817.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8817 19076 bytes
SHA-256: 6d7164fd490154f7b7b5b02cb1083a41699a606f1c1778ddbbbc584224009f4e

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