Malicious PDF — malware analysis report

Static analysis result for SHA-256 020f0f63f175d760…

MALICIOUS

PDF

47.9 KB Created: 2021-05-13 09:03:15 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: e04839f5b1ac348e3102384b1e46d59f SHA-1: 57039b55da7f9618e89a2262c7780a23039855af SHA-256: 020f0f63f175d760aef491b7b71c93b20a08f8fff8581c3479adf53a69ec7972
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure for 'Coin Master Free Spins' and an embedded URI pointing to a malicious domain. The ML classifier also flagged this PDF as malicious. While no scripts were explicitly extracted, the presence of an external URI and the ML classification suggest a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9013

Heuristics 4

  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • 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/406889139/coin-master-free-spins-today-new-game-hack
    • http://perpustakaan.stikim.ac.id/slims/repository/link-for-free-spins-on-coin-master_GM406889139.pdf
    • http://perpustakaan.stikim.ac.id/slims/repository/make-robux_GM431946152.pdf
    • http://perpustakaan.stikim.ac.id/slims/repository/coinmaster-spin-ml-link_GM406889139.pdf
    • http://perpustakaan.stikim.ac.id/slims/repository/hacks-for-minecraft-windows-10_GM479516143.pdf
    • http://perpustakaan.stikim.ac.id/slims/repository/coin-master-daily-free-spins-link-facebook_GM406889139.pdf
    • http://perpustakaan.stikim.ac.id/slims/repository/coin-master-free-spins-hack-without-human-verification_GM406889139.pdf
    • http://perpustakaan.stikim.ac.id/slims/repository/how-to-get-coin-master-free-spin-link_GM406889139.pdf
    • http://perpustakaan.stikim.ac.id/slims/repository/earn-robux-today_GM431946152.pdf
    • http://perpustakaan.stikim.ac.id/slims/repository/krnl-roblox_GM431946152.pdf
    • http://perpustakaan.stikim.ac.id/slims/repository/easy-robux-today_GM431946152.pdf
    • http://perpustakaan.stikim.ac.id/slims/repository/roblox-2021_GM431946152.pdf
    • http://perpustakaan.stikim.ac.id/slims/repository/wurst-minecraft_GM479516143.pdf
    • http://perpustakaan.stikim.ac.id/slims/repository/no-verification-coin-master-hack_GM406889139.pdf
    • http://perpustakaan.stikim.ac.id/slims/repository/coin-master-free-spin-generator-without-human-verification_GM406889139.pdf
    • http://perpustakaan.stikim.ac.id/slims/repository/free-spins-and-coins-coin-master-2021-link_GM406889139.pdf
    • http://perpustakaan.stikim.ac.id/slims/repository/2021-free-spins-on-coin-master_GM406889139.pdf
    • http://perpustakaan.stikim.ac.id/slims/repository/is-coin-master-hacks-safe_GM406889139.pdf
    • http://perpustakaan.stikim.ac.id/slims/repository/coin-master-35-2-hack_GM406889139.pdf
    • http://perpustakaan.stikim.ac.id/slims/repository/how-to-get-free-spins-on-coin-master-blogspot_GM406889139.pdf
    • http://perpustakaan.stikim.ac.id/slims/repository/coin-master-daily-free-spins-link-app_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00005047.bin
aad11016b23efa021b2c873fd702ad7ec89f5c4fa15b9d8e22053c9de6e9a69b		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5047 25896 bytes
font_01_sfnt_off00008caf.bin
1dd933c112880b232546f3aab6a17784a8f412d39fd551cc6eb31c5a04c3ce57		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8CAF 3380 bytes
font_02_sfnt_off00009897.bin
18e77bbf6fe8462b755cd6d2d41f5b898be86405eb57ffa87df3bebfe1b33752		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9897 18404 bytes

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