Malicious PDF — malware analysis report

Static analysis result for SHA-256 7aebcc223e5a2963…

MALICIOUS

PDF

34.3 KB Created: 2021-06-29 05:01:05 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 897fe2fedd08c6fceaebde1cea6a4988 SHA-1: 30744c408f90465c4500a3e5dbc232f5d287ad87 SHA-256: 7aebcc223e5a2963059c7b83f45a5d4589a2c4de57038d5ef7080ef60b4d2456
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to websites offering game hacks and free currency, such as 'denisdaily-free-robux-game-hack'. The ML classifier strongly indicates maliciousness, and the heuristic firings confirm the presence of lures for game hacks and external URIs. The document body, though truncated, also contains similar lure text and URLs, suggesting the primary purpose is to redirect users to potentially malicious sites.

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/denisdaily-free-robux-game-hack PDF link annotation
    • http://mtsn-baranti.com/perpus/repository/coin-master-free-spins-whatsapp-link_GM406889139.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/thinking-simulator-hack-roblox_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/free-2021-roblox-accounts_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/free-daily-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/roblox-boxing-simulator-hack_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/coin-master-free-blogspot_GM406889139.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/abd-roblox_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/code-roblox-for-account-hack_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/free-spins-coin-master-app_GM406889139.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/coin-master-hack-2021-free_GM406889139.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/roblox-mod-download-free_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/https-wwwrobloxcom-games-202120216-galaxy-hacks_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/how-can-u-get-free-robux_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/minecraft-games-online-free-no-download_GM479516143.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/free-roblox-accounts-2021-august_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/coin-master-hack-apk-android-1_GM406889139.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/coin-master-hack-2021-app-download_GM406889139.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/show-me-how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/free-role-in-coin-master_GM406889139.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/minecraft-java-edition-free-download-for-android_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_off00002eae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2EAE 22148 bytes
SHA-256: 4c1031cdf59c4f999a2f6a545e8810f11db0f9b086adb0dd643b3a40d75a28d4
font_01_sfnt_off00005ff9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FF9 19432 bytes
SHA-256: 9288145e7ad8aa779baac8c331865147d033689d046609d185ccaeadc1ebabc1

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