Malicious PDF — malware analysis report

Static analysis result for SHA-256 f999e3159a6b82b0…

MALICIOUS

PDF

43.7 KB Created: 2021-05-13 03:33:45 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: a8b949d048736c4e9e552285c7593769 SHA-1: 69d616b09aa7cc5623e25f07bf58021c47f479b6 SHA-256: f999e3159a6b82b0d75f3e528c4ba388b46d2f749d1c4df808a5b33395112ec8
122 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains numerous links to websites offering game hacks and generators, such as 'free robux' and 'coin master spins'. It also displays a fake CAPTCHA or human verification prompt to trick users into interacting with these malicious links. The primary goal appears to be directing users to potentially malicious websites that could lead to further compromise or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

Heuristics 5

  • 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.
  • Fake CAPTCHA / human verification prompt high SE_FAKE_CAPTCHA
    Document displays a fake CAPTCHA or human-verification prompt — used to trick users into running commands or pressing keyboard shortcuts
  • 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/431946152/how-to-get-free-robux-no-verification-game-hack PDF link annotation
    • https://my-private-intendant.com/images/minecraft-hack-app_GM479516143.pdfIn PDF document text
    • https://my-private-intendant.com/images/coin-master-hacks-free-spins_GM406889139.pdfIn PDF document text
    • https://my-private-intendant.com/images/coin-master-free-spin-reward-links_GM406889139.pdfIn PDF document text
    • https://my-private-intendant.com/images/coin-master-daily-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • https://my-private-intendant.com/images/microsoft-bing-free-robux_GM431946152.pdfIn PDF document text
    • https://my-private-intendant.com/images/free-robux-just-enter-username-and-password_GM431946152.pdfIn PDF document text
    • https://my-private-intendant.com/images/robuxy-com-generator_GM431946152.pdfIn PDF document text
    • https://my-private-intendant.com/images/minecraft-pe-hack-client_GM479516143.pdfIn PDF document text
    • https://my-private-intendant.com/images/free-spins-for-coin-master-ios_GM406889139.pdfIn PDF document text
    • https://my-private-intendant.com/images/avatar-roblox-game_GM431946152.pdfIn PDF document text
    • https://my-private-intendant.com/images/claim-free-robux_GM431946152.pdfIn PDF document text
    • https://my-private-intendant.com/images/spinuri-gratis-coin-master_GM406889139.pdfIn PDF document text
    • https://my-private-intendant.com/images/robux-2021_GM431946152.pdfIn PDF document text
    • https://my-private-intendant.com/images/coin-master-hack-app_GM406889139.pdfIn PDF document text
    • https://my-private-intendant.com/images/how-to-get-free-robux-promo-codes_GM431946152.pdfIn PDF document text
    • https://my-private-intendant.com/images/hacks-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://my-private-intendant.com/images/free-robux-come_GM431946152.pdfIn PDF document text
    • https://my-private-intendant.com/images/www-coin-master-hack-tk_GM406889139.pdfIn PDF document text
    • https://my-private-intendant.com/images/earn-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • https://my-private-intendant.com/images/coin-master-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004b3c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4B3C 25756 bytes
SHA-256: a812c4e2bb655e40d52e84842fd41a0e4b145c969bc32aa70c6e79504f89bc35
font_01_sfnt_off000086e6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x86E6 18764 bytes
SHA-256: a0d8f559ae1a84b7fc559fdee6dca3899797d6ff6e3d64572866459a8961df23

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