Malicious PDF — malware analysis report

Static analysis result for SHA-256 ed836b5f0eaf4d16…

MALICIOUS

PDF

34.6 KB Created: 2021-06-25 06:38:29 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-04
MD5: fdda0fd417f7655cf268fb6c8d1aa0d3 SHA-1: c1804a4c7a299af9d4f18397b89259da7f69e2b1 SHA-256: ed836b5f0eaf4d163c83db1e755e9d0cf768cd1644463fd3cf58d93a36028efd
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/406889139/coin-master-daily-gift-free-spins-and-coins-link-game-hack PDF link annotation
    • https://limebug.com/media/storage/editor/files/how-to-send-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://limebug.com/media/storage/editor/files/what-is-a-minecraft-client_GM479516143.pdfIn PDF document text
    • https://limebug.com/media/storage/editor/files/hack-all-guns-phantom-forces-roblox_GM431946152.pdfIn PDF document text
    • https://limebug.com/media/storage/editor/files/coin-master-hack-version-2021-download_GM406889139.pdfIn PDF document text
    • https://limebug.com/media/storage/editor/files/coin-master-hack-pro-gamers_GM406889139.pdfIn PDF document text
    • https://limebug.com/media/storage/editor/files/haktuts-coin-master-free-daily-spins_GM406889139.pdfIn PDF document text
    • https://limebug.com/media/storage/editor/files/how-to-hack-roblox-to-get-robux_GM431946152.pdfIn PDF document text
    • https://limebug.com/media/storage/editor/files/free-robux-planet_GM431946152.pdfIn PDF document text
    • https://limebug.com/media/storage/editor/files/free-robux-hack-without-verify_GM431946152.pdfIn PDF document text
    • https://limebug.com/media/storage/editor/files/free-nike-clothes-on-roblox_GM431946152.pdfIn PDF document text
    • https://limebug.com/media/storage/editor/files/free-roblox-injector_GM431946152.pdfIn PDF document text
    • https://limebug.com/media/storage/editor/files/roblox-police-free_GM431946152.pdfIn PDF document text
    • https://limebug.com/media/storage/editor/files/free-roblox-accounts-dantdm_GM431946152.pdfIn PDF document text
    • https://limebug.com/media/storage/editor/files/how-to-hack-someones-account-on-roblox_GM431946152.pdfIn PDF document text
    • https://limebug.com/media/storage/editor/files/how-do-you-get-free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
    • https://limebug.com/media/storage/editor/files/coin-master-village-cost_GM406889139.pdfIn PDF document text
    • https://limebug.com/media/storage/editor/files/script-to-hack-generator-of-robux_GM431946152.pdfIn PDF document text
    • https://limebug.com/media/storage/editor/files/april-12th-2021-roblox-hackings_GM431946152.pdfIn PDF document text
    • https://limebug.com/media/storage/editor/files/tiktok-for-free_GM835599320.pdfIn PDF document text
    • https://limebug.com/media/storage/editor/files/how-to-get-free-things-on-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_002_off00002fa3.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2FA3 22792 bytes
SHA-256: 9fe1641b128e9c0d7f7f1feda3d8f0c6d4c659fd25d8a31a79872eac2f18d986
font_01_sfnt_off000062af.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62AF 18940 bytes
SHA-256: a6c8f3ff8a0dea06235968dd24959468b5e0dd7d526557991a378f144c82e936

Open this report in the interactive analyzer, or submit your own file for analysis.