Malicious PDF — malware analysis report

Static analysis result for SHA-256 6efb35d354ff00b4…

MALICIOUS

PDF

35.5 KB Created: 2021-07-05 09:33:35 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: c8d2d1475e66fe9ad419594ca92bf6a4 SHA-1: ab9267ac0f47b314b5e5941647440dca1aedbfb0 SHA-256: 6efb35d354ff00b46ddfbd69501ef43763fe52e7c9d4b80c950b8d4c7d9f0fb0
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs that redirect to websites offering game hacks and generators, a common lure for phishing or malware distribution. The heuristic 'PDF_GAME_HACK_REDIRECT_LURE' strongly indicates this malicious intent. While no scripts were explicitly extracted, the nature of the embedded URLs suggests a potential for further malicious actions like downloading second-stage payloads.

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/406889139/does-coin-master-hack-work-game-hack PDF link annotation
    • http://www.alsultantrading.ae/userfiles/files/minecraft-multiplayer-free_GM479516143.pdfIn PDF document text
    • http://www.alsultantrading.ae/userfiles/files/free-robux-gift-card-generator_GM431946152.pdfIn PDF document text
    • http://www.alsultantrading.ae/userfiles/files/free-robux-working_GM431946152.pdfIn PDF document text
    • http://www.alsultantrading.ae/userfiles/files/roblox-avatar-maker-free_GM431946152.pdfIn PDF document text
    • http://www.alsultantrading.ae/userfiles/files/coin-master-daily-free-spins-link-download_GM406889139.pdfIn PDF document text
    • http://www.alsultantrading.ae/userfiles/files/how-to-get-robux-fast_GM431946152.pdfIn PDF document text
    • http://www.alsultantrading.ae/userfiles/files/roblox-pink-free-robux_GM431946152.pdfIn PDF document text
    • http://www.alsultantrading.ae/userfiles/files/how-can-you-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://www.alsultantrading.ae/userfiles/files/how-to-get-roblox-premium-for-free-2021_GM431946152.pdfIn PDF document text
    • http://www.alsultantrading.ae/userfiles/files/coin-master-hack-unlimited-spins-apk-download_GM406889139.pdfIn PDF document text
    • http://www.alsultantrading.ae/userfiles/files/free-ways-to-get-robux_GM431946152.pdfIn PDF document text
    • http://www.alsultantrading.ae/userfiles/files/free-coin-master-coins-and-spins_GM406889139.pdfIn PDF document text
    • http://www.alsultantrading.ae/userfiles/files/how-to-get-free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
    • http://www.alsultantrading.ae/userfiles/files/coin-master-mod_GM406889139.pdfIn PDF document text
    • http://www.alsultantrading.ae/userfiles/files/free-robux-without-any-verification_GM431946152.pdfIn PDF document text
    • http://www.alsultantrading.ae/userfiles/files/mcpe-client_GM479516143.pdfIn PDF document text
    • http://www.alsultantrading.ae/userfiles/files/free-robux-generator-no-human-verification_GM431946152.pdfIn PDF document text
    • http://www.alsultantrading.ae/userfiles/files/how-to-get-minecoins-in-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://www.alsultantrading.ae/userfiles/files/coin-master-free-spins-link-june-2021_GM406889139.pdfIn PDF document text
    • http://www.alsultantrading.ae/userfiles/files/free-robux-hack-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_off000032df.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x32DF 23328 bytes
SHA-256: e19073f81a089b3e365d17d91057746560a832f1dcf055ba303bd5ee7704d600
font_01_sfnt_off000067b9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x67B9 18368 bytes
SHA-256: 9d88c6aeed56a4ddc97fafb5406c964940ee4a12aa802f69249d7d1f9862690b

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