Malicious PDF — malware analysis report

Static analysis result for SHA-256 ce9af0e66eac6c85…

MALICIOUS

PDF

33.9 KB Created: 2021-07-06 01:21:16 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 821a0ca604122d4296510637fb5d1b16 SHA-1: 1b5e09b2e4c9e9b2a6c9d97eb6981d003f09b38e SHA-256: ce9af0e66eac6c85f5d3dd2722b77ca46384a057abb92ce905adde82f1500d03
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous links to external websites, many of which are disguised as game-related cheats or hacks. The primary URL, http://netcdn.tw/app/479516143/minecraft-pe-mod-menu-game-hack, is flagged as a lure for game hacks. The ML classifier also strongly indicated maliciousness. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest a phishing or malware distribution attempt.

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/479516143/minecraft-pe-mod-menu-game-hack PDF link annotation
    • http://mtsn-baranti.com/perpus/repository/how-to-get-free-roblox-fedoras_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/robux-for-kids_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/minecraft-mac-free_GM479516143.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/will-minecraft-dungeons-be-free_GM479516143.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/roblox-dick-hack_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/como-hackear-coin-master_GM406889139.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/coin-master-free-coins-and-spins_GM406889139.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/minecraft-java-edition-key-free_GM479516143.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/free-minecraft-client_GM479516143.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/coin-master-online-hack-2021_GM406889139.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/how-to-get-free-minecraft-skins_GM479516143.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/how-to-get-a-free-bugatti-in-roblox-jailbreak_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/roblox-hack-client_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/get-free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/hacked-roblox-accounts-list_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/free-roblox-accounts-with-bc-2021_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/free-coin-master-hacks_GM406889139.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/hack-my-game-xyz-coin-master_GM406889139.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/free-robux-2021_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_off00002f92.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F92 22376 bytes
SHA-256: ece2664c38bf7d22c8a8b01cff65e6fc14ff63ec5b62e4e631ce796d3b64f253
font_01_sfnt_off00006129.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6129 18468 bytes
SHA-256: 270bd677220d8e236dad59b99a180391c2ade1823ff393683d940e1d5a26ecaa

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