Malicious PDF — malware analysis report

Static analysis result for SHA-256 982e8ed9ec10a259…

MALICIOUS

PDF

34.7 KB Created: 2021-06-19 09:35:17 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-07
MD5: 35267e96b5013ddc37eac4aeb80f39bb SHA-1: 1aef225dbfafb64986956015888b197fca673e54 SHA-256: 982e8ed9ec10a2597b8889b13ff6daa50819f810c04e7d01fb27cc0d94e300e2
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a high-severity heuristic indicating it links to a game hack redirector, specifically targeting users interested in 'Coin Master' cheats. The embedded URL, http://netcdn.co/app/406889139/coin-master-shield-hack-game-hack, is the primary indicator of this lure. While no scripts were extracted, the document's structure and the nature of the link strongly suggest a phishing or scam attempt to redirect users to a potentially malicious site.

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/406889139/coin-master-shield-hack-game-hack PDF link annotation
    • http://learning.mtsn3banyuwangi.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-without-downloading-anything_GM431946152.pdfIn PDF document text
    • http://learning.mtsn3banyuwangi.sch.id/__statics/gudangsoal/files/free-outfits-roblox_GM431946152.pdfIn PDF document text
    • http://learning.mtsn3banyuwangi.sch.id/__statics/gudangsoal/files/get-free-minecraft-account_GM479516143.pdfIn PDF document text
    • http://learning.mtsn3banyuwangi.sch.id/__statics/gudangsoal/files/coin-master-daily-gifts_GM406889139.pdfIn PDF document text
    • http://learning.mtsn3banyuwangi.sch.id/__statics/gudangsoal/files/gold-card-coin-master-free_GM406889139.pdfIn PDF document text
    • http://learning.mtsn3banyuwangi.sch.id/__statics/gudangsoal/files/links-for-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://learning.mtsn3banyuwangi.sch.id/__statics/gudangsoal/files/get-free-robux_GM431946152.pdfIn PDF document text
    • http://learning.mtsn3banyuwangi.sch.id/__statics/gudangsoal/files/coin-master-hack-apk-april-12-2021_GM406889139.pdfIn PDF document text
    • http://learning.mtsn3banyuwangi.sch.id/__statics/gudangsoal/files/get-more-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://learning.mtsn3banyuwangi.sch.id/__statics/gudangsoal/files/minecraft-free-app_GM479516143.pdfIn PDF document text
    • http://learning.mtsn3banyuwangi.sch.id/__statics/gudangsoal/files/free-face-roblox_GM431946152.pdfIn PDF document text
    • http://learning.mtsn3banyuwangi.sch.id/__statics/gudangsoal/files/how-to-legally-get-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://learning.mtsn3banyuwangi.sch.id/__statics/gudangsoal/files/free-coin-master-spins-blog_GM406889139.pdfIn PDF document text
    • http://learning.mtsn3banyuwangi.sch.id/__statics/gudangsoal/files/tik-tok-free-fire-kreatif-lucu_GM835599320.pdfIn PDF document text
    • http://learning.mtsn3banyuwangi.sch.id/__statics/gudangsoal/files/giveaway-free-robux-live_GM431946152.pdfIn PDF document text
    • http://learning.mtsn3banyuwangi.sch.id/__statics/gudangsoal/files/coin-master-rewards-app_GM406889139.pdfIn PDF document text
    • http://learning.mtsn3banyuwangi.sch.id/__statics/gudangsoal/files/como-hackear-coin-master-en-espaol_GM406889139.pdfIn PDF document text
    • http://learning.mtsn3banyuwangi.sch.id/__statics/gudangsoal/files/hackear-coin-master-espaol_GM406889139.pdfIn PDF document text
    • http://learning.mtsn3banyuwangi.sch.id/__statics/gudangsoal/files/coin-master-hack-app-2021_GM406889139.pdfIn PDF document text
    • http://learning.mtsn3banyuwangi.sch.id/__statics/gudangsoal/files/free-robux-generator_GM431946152.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_off00003236.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3236 22676 bytes
SHA-256: 7acfceddf5108aa96464da082e9ca57f6e8702ffd7ea7089ab0b13f0231672da
font_01_sfnt_off00006486.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6486 18420 bytes
SHA-256: 7a9fefd32bb25fd2ee2db65b7df48dc6e1a90cf159b4f78d2ec6688aae885285

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