Malicious PDF — malware analysis report

Static analysis result for SHA-256 82ad68d761d68e20…

MALICIOUS

PDF

35.1 KB Created: 2021-07-05 19:40:59 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: ad989b9983fb547b87cd35c3e675e5a4 SHA-1: 14ee4e4fc0e56772a6cde4e008d3fd836aa0f29b SHA-256: 82ad68d761d68e20ff5d627c89d9efc1bb15e4f8c7a7699b0cef50a84b8383a0
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure related to hacking game accounts, specifically Roblox, and includes multiple links to external websites. The primary link, http://netcdn.tw/app/431946152/how-to-hack-roblox-accounts-2021-easy-game-hack, is identified as a redirector for game hacks. The document body and heuristics confirm the intent is to trick users into visiting these sites, likely for credential harvesting or malware delivery.

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/431946152/how-to-hack-roblox-accounts-2021-easy-game-hack PDF link annotation
    • https://www.fishboat.hr/files/free-robux-august-2021_GM431946152.pdfIn PDF document text
    • https://www.fishboat.hr/files/coin-master-tiradas-gratis_GM406889139.pdfIn PDF document text
    • http://fishboat.hr/files/free-roblox-linkmon-website_GM431946152.pdfIn PDF document text
    • http://fishboat.hr/files/free-robux-no-human-verification-and-no-survey_GM431946152.pdfIn PDF document text
    • http://fishboat.hr/files/counter-blox-roblox-offensive-wall-hack_GM431946152.pdfIn PDF document text
    • https://www.fishboat.hr/files/coin-master-free-spins-and-coins-blogspot_GM406889139.pdfIn PDF document text
    • http://fishboat.hr/files/robux-cash-hack_GM431946152.pdfIn PDF document text
    • https://www.fishboat.hr/files/best-free-minecraft-skins_GM479516143.pdfIn PDF document text
    • https://www.fishboat.hr/files/roblox-hack-meep-city-phone_GM431946152.pdfIn PDF document text
    • https://www.fishboat.hr/files/how-to-get-free-robux-no-scam_GM431946152.pdfIn PDF document text
    • https://www.fishboat.hr/files/free-minecraft-accounts-2021_GM479516143.pdfIn PDF document text
    • https://www.fishboat.hr/files/get-free-robux-today_GM431946152.pdfIn PDF document text
    • https://www.fishboat.hr/files/hack-robux-free-no-subscribe_GM431946152.pdfIn PDF document text
    • https://www.fishboat.hr/files/how-to-get-spins-for-free-on-coin-master_GM406889139.pdfIn PDF document text
    • http://fishboat.hr/files/coin-master-free-spins-link-download-hack_GM406889139.pdfIn PDF document text
    • http://fishboat.hr/files/easy-robux-com_GM431946152.pdfIn PDF document text
    • http://fishboat.hr/files/how-can-you-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.fishboat.hr/files/can-you-host-a-minecraft-server-for-free_GM479516143.pdfIn PDF document text
    • http://fishboat.hr/files/minecraft-free-download-mobile_GM479516143.pdfIn PDF document text
    • http://fishboat.hr/files/roblox-fly-hack-script_GM431946152.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
stream_002_off00002fce.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2FCE 22472 bytes
SHA-256: d9cf61754ae1c082ac3e5ce192c5db83e2a0b130fbd8706b3acc8263fae0c9d3
font_01_sfnt_off000061f9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61F9 19644 bytes
SHA-256: 282628fc42a96e3279200ec8779d80ae4dcbec71e777bf135841d81b8694e155

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