Malicious PDF — malware analysis report

Static analysis result for SHA-256 eddefd54edc5212e…

MALICIOUS

PDF

44.7 KB Created: 2021-06-03 06:41:19 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 1d6e07a92518473767c10f24c712dd0e SHA-1: 6986c564119408566b976c5f0dfb18d6f715e225 SHA-256: eddefd54edc5212e74f7eb368f0b08c36bc8530cff67e5a7672c53fb8beab915
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 0.9865

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.online/app/406889139/coin-master-date-and-time-hack-game-hack PDF link annotation
    • http://perpustakaan.idia.ac.id/repository/minecraft-nintendo-switch-digital-code-free_GM479516143.pdfIn PDF document text
    • http://perpustakaan.idia.ac.id/repository/coin-master-hack-pc-2021_GM406889139.pdfIn PDF document text
    • http://perpustakaan.idia.ac.id/repository/coin-master-link_GM406889139.pdfIn PDF document text
    • http://perpustakaan.idia.ac.id/repository/how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://perpustakaan.idia.ac.id/repository/free-robux-com-2021_GM431946152.pdfIn PDF document text
    • http://perpustakaan.idia.ac.id/repository/give-me-free-robux_GM431946152.pdfIn PDF document text
    • http://perpustakaan.idia.ac.id/repository/free-spin-coin-master-online_GM406889139.pdfIn PDF document text
    • http://perpustakaan.idia.ac.id/repository/xray-hack_GM479516143.pdfIn PDF document text
    • http://perpustakaan.idia.ac.id/repository/coin-master-free-spins-link-today_GM406889139.pdfIn PDF document text
    • http://perpustakaan.idia.ac.id/repository/minecraft-client_GM479516143.pdfIn PDF document text
    • http://perpustakaan.idia.ac.id/repository/how-do-you-get-free-robux-without-paying_GM431946152.pdfIn PDF document text
    • http://perpustakaan.idia.ac.id/repository/roblox-studio-free_GM431946152.pdfIn PDF document text
    • http://perpustakaan.idia.ac.id/repository/can-you-get-minecraft-windows-10-for-free_GM479516143.pdfIn PDF document text
    • http://perpustakaan.idia.ac.id/repository/free-shirt-roblox_GM431946152.pdfIn PDF document text
    • http://perpustakaan.idia.ac.id/repository/free-robux-come_GM431946152.pdfIn PDF document text
    • http://perpustakaan.idia.ac.id/repository/hack-client_GM479516143.pdfIn PDF document text
    • http://perpustakaan.idia.ac.id/repository/best-free-minecraft-hacked-client_GM479516143.pdfIn PDF document text
    • http://perpustakaan.idia.ac.id/repository/how-to-get-free-robux-gift-cards_GM431946152.pdfIn PDF document text
    • http://perpustakaan.idia.ac.id/repository/easy-robux-generator_GM431946152.pdfIn PDF document text
    • http://perpustakaan.idia.ac.id/repository/minecraft-cheats-pc-2021_GM479516143.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_off00005370.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5370 24896 bytes
SHA-256: a4c9ef5ed247201e4e889a63df921bf17cd9374eea3d6439066099ea9928e86b
font_01_sfnt_off00008bfd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8BFD 18316 bytes
SHA-256: 7bb22083c9314811711c29236537d9b39d24df6e47e77b9ae9fc3b3f4254db81

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