Malicious PDF — malware analysis report

Static analysis result for SHA-256 07e2177d7594c5b9…

MALICIOUS

PDF

43.8 KB Created: 2021-06-04 03:14:10 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: d2342b0d91be5ee4b27d97fc0a5423f6 SHA-1: 0c53f4f7581a28e96a28568150f55bb362bdaa9c SHA-256: 07e2177d7594c5b9d0764f224e8866bea3ecae0cc5f953f68e92c1975212e0c8
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a high-confidence heuristic indicating it links to a game hack lure, specifically for Coin Master. The embedded URL, https://netcdn.online/app/406889139/coin-master-coins-free-game-hack, likely leads to a malicious site. The document body also contains obfuscated text and URLs pointing to similar game-related cheats and hacks, reinforcing the lure-based attack pattern.

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-coins-free-game-hack PDF link annotation
    • http://perpustakaan.bundadelimalampung.ac.id/repository/toolbox-for-minecraft-pe-mod-apk_GM479516143.pdfIn PDF document text
    • http://perpustakaan.bundadelimalampung.ac.id/repository/how-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://perpustakaan.bundadelimalampung.ac.id/repository/coin-master-hack-com_GM406889139.pdfIn PDF document text
    • http://perpustakaan.bundadelimalampung.ac.id/repository/free-spin-coin-master-2021-link_GM406889139.pdfIn PDF document text
    • http://perpustakaan.bundadelimalampung.ac.id/repository/free-coin-master-spins-link_GM406889139.pdfIn PDF document text
    • http://perpustakaan.bundadelimalampung.ac.id/repository/easy-robux-hack_GM431946152.pdfIn PDF document text
    • http://perpustakaan.bundadelimalampung.ac.id/repository/coin-master-heaven-free-spins_GM406889139.pdfIn PDF document text
    • http://perpustakaan.bundadelimalampung.ac.id/repository/can-you-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://perpustakaan.bundadelimalampung.ac.id/repository/roblox-free-robux-generator_GM431946152.pdfIn PDF document text
    • http://perpustakaan.bundadelimalampung.ac.id/repository/coin-master-free-spin-link-today-2021_GM406889139.pdfIn PDF document text
    • http://perpustakaan.bundadelimalampung.ac.id/repository/how-to-get-free-robux-not-a-scam_GM431946152.pdfIn PDF document text
    • http://perpustakaan.bundadelimalampung.ac.id/repository/hacks-minecraft_GM479516143.pdfIn PDF document text
    • http://perpustakaan.bundadelimalampung.ac.id/repository/free-robux-thumbnail_GM431946152.pdfIn PDF document text
    • http://perpustakaan.bundadelimalampung.ac.id/repository/free-spin-coin-master-app-download_GM406889139.pdfIn PDF document text
    • http://perpustakaan.bundadelimalampung.ac.id/repository/60-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://perpustakaan.bundadelimalampung.ac.id/repository/earn-free-robux_GM431946152.pdfIn PDF document text
    • http://perpustakaan.bundadelimalampung.ac.id/repository/daily-coin-master-spins_GM406889139.pdfIn PDF document text
    • http://perpustakaan.bundadelimalampung.ac.id/repository/how-to-watch-ads-for-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://perpustakaan.bundadelimalampung.ac.id/repository/how-to-hack-roblox-games_GM431946152.pdfIn PDF document text
    • http://perpustakaan.bundadelimalampung.ac.id/repository/free-robux-mod_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_004_off00005236.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5236 24432 bytes
SHA-256: f3f0986cdd2ffc5cc63aa5c1e3fec918f96af0c457751a166d1d50f3c6dfb35f
font_01_sfnt_off00008a84.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A84 17712 bytes
SHA-256: 0afd6f2792edb83b7f2a0201a1e0a5eb12ca81ad868fb3e42742340ee6e5fb0e

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