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Analysis

  • max time kernel
    153s
  • max time network
    46s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    19/09/2022, 10:22

General

  • Target

    52d90931b2510c0364a39904c7d4abbe686385b0f46c46d9788e74cc50a1df89.exe

  • Size

    192KB

  • MD5

    3321aaf1db2179aba80c5fc2f8c945ff

  • SHA1

    8cea41e9bac00d0c552ca13e9c7b1bf12ade241e

  • SHA256

    52d90931b2510c0364a39904c7d4abbe686385b0f46c46d9788e74cc50a1df89

  • SHA512

    b25f49b353902094c0a881765b7651fce5b0e2d3d4e60a4c6e3235964c9d723a22fc98a4845e84b44f0e95aefc173897d58a830fb729c438793a3a9e371cc824

  • SSDEEP

    3072:8Ge2fdLbEamxv2YhFEryJVVtOTI4BkcKmPcfNVw8:3dLAaqvFHVVtO7KmkfNVL

Score
10/10

Malware Config

Signatures

  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Adds Run key to start application 2 TTPs 29 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\52d90931b2510c0364a39904c7d4abbe686385b0f46c46d9788e74cc50a1df89.exe
    "C:\Users\Admin\AppData\Local\Temp\52d90931b2510c0364a39904c7d4abbe686385b0f46c46d9788e74cc50a1df89.exe"
    1⤵
    • Modifies visiblity of hidden/system files in Explorer
    • Loads dropped DLL
    • Adds Run key to start application
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1728
    • C:\Users\Admin\nuuodin.exe
      "C:\Users\Admin\nuuodin.exe"
      2⤵
      • Modifies visiblity of hidden/system files in Explorer
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of SetWindowsHookEx
      PID:1428

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\nuuodin.exe

    Filesize

    192KB

    MD5

    bfbe1964848b66a2d2c5b734cd59a88f

    SHA1

    d74f5324af4ad09e517ecb3f26f0265d30862bc7

    SHA256

    1467861be97717bb40a2f572246c81ffcdef1cf62a92fea9f2c1601937c2c9f3

    SHA512

    4a394a50301c5fe1aa4a6da66ec5b7492b34b239244f58c3f5a89ad45bdf6a11f4f5017d1766575f81f69bd5a97701d0c2144f3f13577509d061d867db7f4290

  • C:\Users\Admin\nuuodin.exe

    Filesize

    192KB

    MD5

    bfbe1964848b66a2d2c5b734cd59a88f

    SHA1

    d74f5324af4ad09e517ecb3f26f0265d30862bc7

    SHA256

    1467861be97717bb40a2f572246c81ffcdef1cf62a92fea9f2c1601937c2c9f3

    SHA512

    4a394a50301c5fe1aa4a6da66ec5b7492b34b239244f58c3f5a89ad45bdf6a11f4f5017d1766575f81f69bd5a97701d0c2144f3f13577509d061d867db7f4290

  • \Users\Admin\nuuodin.exe

    Filesize

    192KB

    MD5

    bfbe1964848b66a2d2c5b734cd59a88f

    SHA1

    d74f5324af4ad09e517ecb3f26f0265d30862bc7

    SHA256

    1467861be97717bb40a2f572246c81ffcdef1cf62a92fea9f2c1601937c2c9f3

    SHA512

    4a394a50301c5fe1aa4a6da66ec5b7492b34b239244f58c3f5a89ad45bdf6a11f4f5017d1766575f81f69bd5a97701d0c2144f3f13577509d061d867db7f4290

  • \Users\Admin\nuuodin.exe

    Filesize

    192KB

    MD5

    bfbe1964848b66a2d2c5b734cd59a88f

    SHA1

    d74f5324af4ad09e517ecb3f26f0265d30862bc7

    SHA256

    1467861be97717bb40a2f572246c81ffcdef1cf62a92fea9f2c1601937c2c9f3

    SHA512

    4a394a50301c5fe1aa4a6da66ec5b7492b34b239244f58c3f5a89ad45bdf6a11f4f5017d1766575f81f69bd5a97701d0c2144f3f13577509d061d867db7f4290

  • memory/1728-56-0x0000000075DA1000-0x0000000075DA3000-memory.dmp

    Filesize

    8KB