Malicious PDF — malware analysis report

Static analysis result for SHA-256 3c2c4a119c6e480e…

MALICIOUS

PDF

41.1 KB Created: 2021-05-20 05:34:38 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 7756b0422a540b508c63ffc99c9e97f2 SHA-1: 7a15b0e2c5889d4d764dfb1469c4e90bdd1cb0ad SHA-256: 3c2c4a119c6e480e761593f92f6dccec87eceb2af4d27dd1f0fef17ec9254b96
122 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to external websites, primarily advertising game hacks and generators, which is a common lure for phishing or malware distribution. The heuristic 'SE_FAKE_CAPTCHA' indicates the document may present a fake verification prompt to trick users into interacting further. While no scripts were explicitly extracted, the PDF structure and embedded URIs suggest an attempt to redirect users to malicious content, likely for initial access via spearphishing.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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/1094591345/pokemon-go-free-gift-codes-game-hack PDF link annotation
    • http://abris-jardin.be/images/coin-master-cheats-2021_GM406889139.pdfIn PDF document text
    • http://abris-jardin.be/images/mcpe-master-hack-coins_GM406889139.pdfIn PDF document text
    • http://abris-jardin.be/images/coin-master-hack-com_GM406889139.pdfIn PDF document text
    • http://abris-jardin.be/images/free-roblox-hair-to-wear_GM431946152.pdfIn PDF document text
    • http://abris-jardin.be/images/roblox-free-no-download_GM431946152.pdfIn PDF document text
    • http://abris-jardin.be/images/how-do-you-get-free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
    • http://abris-jardin.be/images/roblox-promo-codes-free-robux_GM431946152.pdfIn PDF document text
    • http://abris-jardin.be/images/free-robux-easy_GM431946152.pdfIn PDF document text
    • http://abris-jardin.be/images/how-to-hack-roblox-accounts-2021-easy_GM431946152.pdfIn PDF document text
    • http://abris-jardin.be/images/youtube-how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://abris-jardin.be/images/roblox-robux-generator_GM431946152.pdfIn PDF document text
    • http://abris-jardin.be/images/hackear-coin-master-espaol_GM406889139.pdfIn PDF document text
    • http://abris-jardin.be/images/free-roblox-accounts-with-robux-2021_GM431946152.pdfIn PDF document text
    • http://abris-jardin.be/images/minecraft-login-free_GM479516143.pdfIn PDF document text
    • http://abris-jardin.be/images/coinmaster-free-cards_GM406889139.pdfIn PDF document text
    • http://abris-jardin.be/images/free-roblox-accounts-with-robux-that-work-not-banned-2021_GM431946152.pdfIn PDF document text
    • http://abris-jardin.be/images/coin-master-free-spins-link-today-facebook_GM406889139.pdfIn PDF document text
    • http://abris-jardin.be/images/free-robux-generator-2021-no-human-verification-or-survey_GM431946152.pdfIn PDF document text
    • http://abris-jardin.be/images/get-free-robux-without-human-verification_GM431946152.pdfIn PDF document text
    • http://abris-jardin.be/images/roblox-pink-free-robux_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_off000045cf.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x45CF 24764 bytes
SHA-256: 8b8c8c2364574e0e2aed5bebddfcbbe9c097c8d12d269f13dca6ab0f54a4d15d
font_01_sfnt_off00007e9c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E9C 18240 bytes
SHA-256: 2e074438cdf6625505e94d3dde0c5cb1a5862a1031e1029c885dc276ee488ac5

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