Malicious PDF — malware analysis report

Static analysis result for SHA-256 dfa030684d5d867b…

MALICIOUS

PDF

43.7 KB Created: 2021-05-15 16:22:13 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 11948232efd6115186ea24098bd76fb1 SHA-1: 51c39c2018b43dff57ab10a9a82b2025b92ec761 SHA-256: dfa030684d5d867b4232aadb7f50f707aaac57bd4742dcab5d6870431206151f
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded links that redirect to websites offering game hacks and cheats, such as 'free generator / game hack'. The document body and heuristics indicate a lure to download potentially malicious content. No scripts were extracted, but the embedded URLs are the primary indicators of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

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.xyz/app/479516143/minecraft-online-free-download-game-hack PDF link annotation
    • http://eltisstudio.sk/images/robuxlove-net-free-robux_GM431946152.pdfIn PDF document text
    • http://eltisstudio.sk/images/free-robux-apps-that-work_GM431946152.pdfIn PDF document text
    • http://eltisstudio.sk/images/free-minecraft-skins-java_GM479516143.pdfIn PDF document text
    • http://eltisstudio.sk/images/coin-master-hack-app-download-free_GM406889139.pdfIn PDF document text
    • http://eltisstudio.sk/images/7-year-old-roblox_GM431946152.pdfIn PDF document text
    • http://eltisstudio.sk/images/coin-master-hack-mod-apk-download_GM406889139.pdfIn PDF document text
    • http://eltisstudio.sk/images/totally-free-coin-master-spins-2021_GM406889139.pdfIn PDF document text
    • http://eltisstudio.sk/images/coin-master-hack-tool-pc_GM406889139.pdfIn PDF document text
    • http://eltisstudio.sk/images/coin-master-hack-version-2021_GM406889139.pdfIn PDF document text
    • http://eltisstudio.sk/images/how-to-get-free-roblox-money_GM431946152.pdfIn PDF document text
    • http://eltisstudio.sk/images/promo-code-free-robux_GM431946152.pdfIn PDF document text
    • http://eltisstudio.sk/images/free-spins-coin-master-daily_GM406889139.pdfIn PDF document text
    • http://eltisstudio.sk/images/how-to-get-free-spins-on-coin-master-2021-iphone_GM406889139.pdfIn PDF document text
    • http://eltisstudio.sk/images/coin-master-hack-2021-apk_GM406889139.pdfIn PDF document text
    • http://eltisstudio.sk/images/earn-free-robux-for-roblox_GM431946152.pdfIn PDF document text
    • http://eltisstudio.sk/images/get-free-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://eltisstudio.sk/images/how-to-download-minecraft-for-free-on-windows-10_GM479516143.pdfIn PDF document text
    • http://eltisstudio.sk/images/real-free-robux-codes_GM431946152.pdfIn PDF document text
    • http://eltisstudio.sk/images/coin-master-free-spins-and-coins-today-gift-reward_GM406889139.pdfIn PDF document text
    • http://eltisstudio.sk/images/roblox-re_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
stream_003_off000046e8.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x46E8 29020 bytes
SHA-256: ad3d3b21193a7bbbae8e10e9fba1b4fc445ec14a606c7096158dc0b8d35e0588
font_01_sfnt_off0000888f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x888F 18292 bytes
SHA-256: a2a63f8c18687518d260bdaa10b8e62a526b9456f69b3d2706eff3b892369b89

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