Malicious PDF — malware analysis report

Static analysis result for SHA-256 f17bc1fa07c5363a…

MALICIOUS

PDF

46.6 KB Created: 2021-05-12 09:38:10 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 2c9d39018d6df36e7104522ffa674cdf SHA-1: e36287ab99512d8c5c0a9137d0a7bf4bab129f2f SHA-256: f17bc1fa07c5363ac89fc15322f40c477a154f94efa8824c86906226ac89f63c
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 0.8948

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/431946152/roblox-hackprogamers-com-game-hack PDF link annotation
    • https://stikes-alinsyirah.ac.id/perpustakaan/repository/coin-master-pc-hack-download_GM406889139.pdfIn PDF document text
    • https://stikes-alinsyirah.ac.id/perpustakaan/repository/how-to-get-free-spins-on-coin-master-ios_GM406889139.pdfIn PDF document text
    • https://stikes-alinsyirah.ac.id/perpustakaan/repository/coin-master-hack_GM406889139.pdfIn PDF document text
    • https://stikes-alinsyirah.ac.id/perpustakaan/repository/descargar-coin-master-hackeado_GM406889139.pdfIn PDF document text
    • https://stikes-alinsyirah.ac.id/perpustakaan/repository/free-spins-coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • https://stikes-alinsyirah.ac.id/perpustakaan/repository/play-minecraft-for-free_GM479516143.pdfIn PDF document text
    • https://stikes-alinsyirah.ac.id/perpustakaan/repository/coin-master-hack-reddit_GM406889139.pdfIn PDF document text
    • https://stikes-alinsyirah.ac.id/perpustakaan/repository/coin-master-hack-without-human-verification-2021_GM406889139.pdfIn PDF document text
    • https://stikes-alinsyirah.ac.id/perpustakaan/repository/free-robux-with-no-verification_GM431946152.pdfIn PDF document text
    • https://stikes-alinsyirah.ac.id/perpustakaan/repository/free-coins-2021-coin-master-link_GM406889139.pdfIn PDF document text
    • https://stikes-alinsyirah.ac.id/perpustakaan/repository/20210-free-spin-links-for-coin-master_GM406889139.pdfIn PDF document text
    • https://stikes-alinsyirah.ac.id/perpustakaan/repository/how-do-you-get-free-robux-without-paying_GM431946152.pdfIn PDF document text
    • https://stikes-alinsyirah.ac.id/perpustakaan/repository/hack-a-game_GM431946152.pdfIn PDF document text
    • https://stikes-alinsyirah.ac.id/perpustakaan/repository/robux-com-roblox_GM431946152.pdfIn PDF document text
    • https://stikes-alinsyirah.ac.id/perpustakaan/repository/roblox-hack-download-pc_GM431946152.pdfIn PDF document text
    • https://stikes-alinsyirah.ac.id/perpustakaan/repository/free-robux-real-working_GM431946152.pdfIn PDF document text
    • https://stikes-alinsyirah.ac.id/perpustakaan/repository/how-to-earn-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • https://stikes-alinsyirah.ac.id/perpustakaan/repository/minecraft-windows-10-edition-free_GM479516143.pdfIn PDF document text
    • https://stikes-alinsyirah.ac.id/perpustakaan/repository/blogger-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://stikes-alinsyirah.ac.id/perpustakaan/repository/how-to-get-free-spins-and-coins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004cdf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4CDF 25000 bytes
SHA-256: 21e38d9e33d7c60d100f2d150b4b0ec492b0e56fcc620ba7d827044d855f9320
font_01_sfnt_off00008672.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8672 3400 bytes
SHA-256: 4b3e0f36ad1e0c7e3ea5c178fd2b4f097d1e01575fc6a4101a8b520db34dfe07
font_02_sfnt_off0000919c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x919C 18904 bytes
SHA-256: 3daff622341587085cf68cfc75cc70952724ce9225f7b54a97ef91e01ea24c3d

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