Malicious PDF — malware analysis report

Static analysis result for SHA-256 a893fb11dae7ddc5…

MALICIOUS

PDF

42.3 KB Created: 2021-05-12 03:06:35 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-07
MD5: 04b4d1c0ad1725f6fe3bc604e7ecd9d2 SHA-1: f9cf91d1df000bf7996eb92f37628a9079f37b7f SHA-256: a893fb11dae7ddc56290116b1d9e3f79dee3d9f535361f1061bbcf481528d457
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF file contains a high-severity heuristic indicating it links to a 'free generator / game hack' redirector, which is a common lure for malicious content. The document body, though heavily obfuscated, contains references to 'Minecraft Hack 2021' and the same URL found in the heuristics. This suggests the PDF is designed to trick users into visiting a malicious site, likely to download malware or exploit vulnerabilities.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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-hack-2021-game-hack PDF link annotation
    • https://dirigentigiustizia.it/images/coin-master-free-spins-hack-download_GM406889139.pdfIn PDF document text
    • https://dirigentigiustizia.it/images/earn-free-robux-for-roblox_GM431946152.pdfIn PDF document text
    • https://dirigentigiustizia.it/images/how-to-hack-robux_GM431946152.pdfIn PDF document text
    • https://dirigentigiustizia.it/images/coin-master-coins-free_GM406889139.pdfIn PDF document text
    • https://dirigentigiustizia.it/images/robux-hack-tools_GM431946152.pdfIn PDF document text
    • https://dirigentigiustizia.it/images/coin-master-free-link-daily_GM406889139.pdfIn PDF document text
    • https://dirigentigiustizia.it/images/free-robux-no-verification-no-download_GM431946152.pdfIn PDF document text
    • https://dirigentigiustizia.it/images/coin-master-100-spin-hack_GM406889139.pdfIn PDF document text
    • https://dirigentigiustizia.it/images/free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://dirigentigiustizia.it/images/coin-master-links-for-today_GM406889139.pdfIn PDF document text
    • https://dirigentigiustizia.it/images/how-can-u-get-free-robux_GM431946152.pdfIn PDF document text
    • https://dirigentigiustizia.it/images/roblox-free-robux_GM431946152.pdfIn PDF document text
    • https://dirigentigiustizia.it/images/coin-master-links-to-free-spins_GM406889139.pdfIn PDF document text
    • https://dirigentigiustizia.it/images/hack-coin-master-app_GM406889139.pdfIn PDF document text
    • https://dirigentigiustizia.it/images/robux-hacks-2021_GM431946152.pdfIn PDF document text
    • https://dirigentigiustizia.it/images/rbx-free_GM431946152.pdfIn PDF document text
    • https://dirigentigiustizia.it/images/how-to-hack-coin-master-game-ios_GM406889139.pdfIn PDF document text
    • https://dirigentigiustizia.it/images/minecraft-online-free-download_GM479516143.pdfIn PDF document text
    • https://dirigentigiustizia.it/images/100-free-spins-coin-master-link_GM406889139.pdfIn PDF document text
    • https://dirigentigiustizia.it/images/coin-master-hack-pro-gamers_GM406889139.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_off00004a14.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4A14 25284 bytes
SHA-256: f7e1232bf829d0199ce4c49fc57fcc9fb7ad92804b917c0aa81889f74f213a5c
font_01_sfnt_off0000836d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x836D 18140 bytes
SHA-256: c4871d7a9fac3ab188a2e56e86996e0c49dc42d21a9daf4a9eb4f35130b88c58

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