Malicious PDF — malware analysis report

Static analysis result for SHA-256 725266abaed04981…

MALICIOUS

PDF

46.4 KB Created: 2021-06-11 06:00:15 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: d12e06f8f125ad4e8b12dafb835ff9d5 SHA-1: cb186d87a67064e874d35595f1983c9b7fb402eb SHA-256: 725266abaed04981d82f46182769f0fad1bf6dbbaa0941c8afae2a4344035102
122 Risk Score

Malware Insights

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

The PDF document employs a lure of 'free game hacks' to entice users into clicking malicious links. The document body and heuristics indicate a redirection to external URLs that likely host further malicious content or phishing pages. The presence of a clipboard command lure suggests an attempt to trick users into executing commands, potentially to download and run additional payloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9832

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.
  • Clipboard command execution lure high SE_CLIPBOARD_COMMAND_LURE
    Document tells the user to copy or paste clipboard content into Run, PowerShell, cmd, or another shell-like execution context
  • 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.tw/app/431946152/f7-roblox-hack-download-game-hack PDF link annotation
    • https://zosnow.com/wp-content/uploads/fsqm-files/roblox-robux-generator-robux-tix-hack_GM431946152.pdfIn PDF document text
    • https://zosnow.com/wp-content/uploads/fsqm-files/robux-hack-alan-walker_GM431946152.pdfIn PDF document text
    • https://zosnow.com/wp-content/uploads/fsqm-files/coin-master-daily-free-spins-link-today_GM406889139.pdfIn PDF document text
    • https://zosnow.com/wp-content/uploads/fsqm-files/roblox-hack-com_GM431946152.pdfIn PDF document text
    • https://zosnow.com/wp-content/uploads/fsqm-files/free-roblox-game-card-generator-no-survey_GM431946152.pdfIn PDF document text
    • https://zosnow.com/wp-content/uploads/fsqm-files/roblox-bee-swarm-hack_GM431946152.pdfIn PDF document text
    • https://zosnow.com/wp-content/uploads/fsqm-files/free-robux-xith-fakename_GM431946152.pdfIn PDF document text
    • https://zosnow.com/wp-content/uploads/fsqm-files/free-robux-promo-codes-2021_GM431946152.pdfIn PDF document text
    • https://zosnow.com/wp-content/uploads/fsqm-files/how-to-get-free-robux-youtube-aidentm_GM431946152.pdfIn PDF document text
    • https://zosnow.com/wp-content/uploads/fsqm-files/free-robux-codes-9-3-19_GM431946152.pdfIn PDF document text
    • https://zosnow.com/wp-content/uploads/fsqm-files/how-to-hack-a-minecraft-server_GM479516143.pdfIn PDF document text
    • https://zosnow.com/wp-content/uploads/fsqm-files/free-military-shirt-template-for-roblox_GM431946152.pdfIn PDF document text
    • https://zosnow.com/wp-content/uploads/fsqm-files/how-to-use-a-roblox-hack-script_GM431946152.pdfIn PDF document text
    • https://zosnow.com/wp-content/uploads/fsqm-files/how-to-hack-boku-no-roblox_GM431946152.pdfIn PDF document text
    • https://zosnow.com/wp-content/uploads/fsqm-files/hack-cojer-cosas-del-catalog-sin-tener-robux_GM431946152.pdfIn PDF document text
    • https://zosnow.com/wp-content/uploads/fsqm-files/how-to-get-free-robux-without-inspect_GM431946152.pdfIn PDF document text
    • https://zosnow.com/wp-content/uploads/fsqm-files/classic-minecraft-net-hacks_GM479516143.pdfIn PDF document text
    • https://zosnow.com/wp-content/uploads/fsqm-files/how-to-hack-roblox-games_GM431946152.pdfIn PDF document text
    • https://zosnow.com/wp-content/uploads/fsqm-files/how-to-get-minecraft-for-free-on-android_GM479516143.pdfIn PDF document text
    • https://zosnow.com/wp-content/uploads/fsqm-files/how-to-hack-songs-in-roblox_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_004_off00005398.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5398 26384 bytes
SHA-256: 6e960bb4ba8f1aa3fb22d3d80f6ac22482f6b03bc8d157d55faa437ce06f9d91
font_01_sfnt_off000090e3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x90E3 18908 bytes
SHA-256: 08901d91b5e1d9e7174b1a9e9fd9b4efe9db2608645e31264124b23c2ce6b55b

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