Malicious PDF — malware analysis report

Static analysis result for SHA-256 bc8093558cc8a41c…

MALICIOUS

PDF

34.1 KB Created: 2021-06-17 23:16:23 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: cb436fb2a90fe2e69d32607da3a6d99e SHA-1: d8a0c5530d7c075adcd049e65e70e3fc59483377 SHA-256: bc8093558cc8a41c0b0562a34bd1a160d4bd3b1791741f42888cd1db6c12e5f6
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

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.co/app/431946152/codes-for-roblox-tycoon-to-get-free-gems-game-hack PDF link annotation
    • http://slims.abulyatama.ac.id/repository/coin-master-free-coins-and-spins-online-tool_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/hacks-para-roblox_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/hacked-client-for-minecraft-bedrock_GM479516143.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/free-tiktok-foryoupage_GM835599320.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/www-rubux_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/robuxmatch-com-free-robux_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/haktuts-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/how-to-get-free-robux-without-downloading-apps_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/coinmaster-spin-ml-link_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/coin-master-daily-free-spins_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/minecraft-free-download-linux_GM479516143.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/esp-x-ray-roblox-hacks_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/free-spins-coin-master-november-2021_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/appsmob-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/how-to-hack-coin-master-pc_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/on-roblox-how-to-get-free-robux-on-ipad_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/roblox-gear-cheat_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/minecraft-packs-free_GM479516143.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/free-spins-for-coin-master-app_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
font_00_sfnt_off00002f3e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F3E 21776 bytes
SHA-256: 35faa7352d03185bc7db74446de214ec315e66489836e6a0f55c7b43a28f17ff
font_01_sfnt_off00005efe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5EFE 19368 bytes
SHA-256: b5deb101df6b7ea00211acf0656220216f297bc007035ba23801ed9c8386d065

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