Malicious PDF — malware analysis report

Static analysis result for SHA-256 0ebb74155012ba8f…

MALICIOUS

PDF

41.8 KB Created: 2021-05-16 22:15:13 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: c5a63ee4a1b4311f5c7a5b4d43c11765 SHA-1: 1e1eceeab2d0beaa0e4b1f45b627a2deb1e1b4a3 SHA-256: 0ebb74155012ba8fd8edfb3ffebf92a07834c8272757de81d508d4b222fa75b6
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1105 Ingress Tool Transfer

The PDF document contains numerous embedded links to external websites, many of which appear to be part of a link farm designed to attract users searching for game-related cheats and hacks. The ML classifier strongly indicated maliciousness, and the presence of a large number of external links suggests an attempt to redirect users to malicious content or further stages of an attack. The document body, though partially corrupted, contains references to 'Minecraft Hacks' and a URL that aligns with this theme.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

Heuristics 4

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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/479516143/minecraft-hacks-list-game-hack
    • http://stikomyogyakarta.ac.id/ckfinder/userfiles/files/free-roblox-accounts-with-robux-that-work-not-banned_GM431946152.pdf
    • http://stikomyogyakarta.ac.id/ckfinder/userfiles/files/coin-master-hack-2021_GM406889139.pdf
    • http://stikomyogyakarta.ac.id/ckfinder/userfiles/files/minecraft-windows-10-free_GM479516143.pdf
    • http://stikomyogyakarta.ac.id/ckfinder/userfiles/files/google-coin-master-free-spins_GM406889139.pdf
    • http://stikomyogyakarta.ac.id/ckfinder/userfiles/files/blogspot-coin-master-spins_GM406889139.pdf
    • http://stikomyogyakarta.ac.id/ckfinder/userfiles/files/is-it-possible-to-get-free-robux_GM431946152.pdf
    • http://stikomyogyakarta.ac.id/ckfinder/userfiles/files/minecraft-pocket-edition-download-free-pe-calculator_GM479516143.pdf
    • http://stikomyogyakarta.ac.id/ckfinder/userfiles/files/coin-master-blogspot_GM406889139.pdf
    • http://stikomyogyakarta.ac.id/ckfinder/userfiles/files/haktuts-coin-master-free-spins-2021_GM406889139.pdf
    • http://stikomyogyakarta.ac.id/ckfinder/userfiles/files/get-free-spins-coin-master-2021_GM406889139.pdf
    • http://stikomyogyakarta.ac.id/ckfinder/userfiles/files/how-to-get-free-robux-without-verification-or-surveys_GM431946152.pdf
    • http://stikomyogyakarta.ac.id/ckfinder/userfiles/files/free-robux-generator-for-kids_GM431946152.pdf
    • http://stikomyogyakarta.ac.id/ckfinder/userfiles/files/coin-master-free-coins-and-spins-group_GM406889139.pdf
    • http://stikomyogyakarta.ac.id/ckfinder/userfiles/files/coin-master-hack-mod-apk-android-1_GM406889139.pdf
    • http://stikomyogyakarta.ac.id/ckfinder/userfiles/files/download-hack-coin-master-apk_GM406889139.pdf
    • http://stikomyogyakarta.ac.id/ckfinder/userfiles/files/coin-master-hack-download-android_GM406889139.pdf
    • http://stikomyogyakarta.ac.id/ckfinder/userfiles/files/coin-master-tips_GM406889139.pdf
    • http://stikomyogyakarta.ac.id/ckfinder/userfiles/files/coin-master-free-spins-app_GM406889139.pdf
    • http://stikomyogyakarta.ac.id/ckfinder/userfiles/files/free-pet-snacks-coin-master_GM406889139.pdf
    • http://stikomyogyakarta.ac.id/ckfinder/userfiles/files/how-to-get-free-spins-and-coins-in-coin-master_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004b84.bin
75a708e3ad0339f01f391db167e04fb13e9bf7f8cdf92b2159060eaaea332a29		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4B84 24284 bytes
font_01_sfnt_off000082ef.bin
c2e082955acc44a54c2cd6792e97aac33f079296fe9f17b7b430410190c0edcd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x82EF 17740 bytes

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