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Analysis

  • max time kernel
    144s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    03/12/2022, 18:57

General

  • Target

    e6a0e25a6cc046b54a861de9d9692391827a6a1ae37924ea4b2389f27e131d7f.exe

  • Size

    501KB

  • MD5

    e40043ca830f0cb77887f8e1e1d5cbe2

  • SHA1

    7316e9ea61c83a28f0d5cc37690cc3f9fff72cc0

  • SHA256

    e6a0e25a6cc046b54a861de9d9692391827a6a1ae37924ea4b2389f27e131d7f

  • SHA512

    eac0bb945ee52a6e457a710df5ea6f11d839102e1ae6abdb2f1a2db724c4989c39ed0f20e82b7e409f3876169e9ca325736ea88ff0726d873f608509ed40943d

  • SSDEEP

    12288:d6TcTq0rfJDGv5rwiglwHZcyDyGXuwNR9nu/yqeD:+Qq+Gv5rw7kZpDXewFu6qe

Malware Config

Signatures

  • UAC bypass 3 TTPs 1 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies Internet Explorer settings 1 TTPs 24 IoCs
  • Modifies registry key 1 TTPs 2 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 4 IoCs
  • Suspicious use of WriteProcessMemory 24 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\e6a0e25a6cc046b54a861de9d9692391827a6a1ae37924ea4b2389f27e131d7f.exe
    "C:\Users\Admin\AppData\Local\Temp\e6a0e25a6cc046b54a861de9d9692391827a6a1ae37924ea4b2389f27e131d7f.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1980
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c ""C:\Users\Admin\AppData\Roaming\Nreg.bat" "
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:632
      • C:\Windows\SysWOW64\reg.exe
        REG ADD HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run /v RDSound /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\Huawei3gConect.exe" /f
        3⤵
        • Adds Run key to start application
        • Modifies registry key
        PID:1720
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c ""C:\Users\Admin\AppData\Roaming\NUac.bat" "
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:976
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\System32\cmd.exe /k C:\Windows\System32\reg.exe ADD HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System /v EnableLUA /t REG_DWORD /d 0 /f
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1416
        • C:\Windows\SysWOW64\reg.exe
          C:\Windows\System32\reg.exe ADD HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System /v EnableLUA /t REG_DWORD /d 0 /f
          4⤵
          • UAC bypass
          • Modifies registry key
          PID:1404
  • C:\Program Files\Internet Explorer\iexplore.exe
    "C:\Program Files\Internet Explorer\iexplore.exe" -Embedding
    1⤵
    • Modifies Internet Explorer settings
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1516
    • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
      "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1516 CREDAT:275457 /prefetch:2
      2⤵
      • Modifies Internet Explorer settings
      • Suspicious use of SetWindowsHookEx
      PID:836

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Roaming\NUac.bat

    Filesize

    164B

    MD5

    c80c14c9b9ffd63a2ed8037940d75103

    SHA1

    3f24e10b213bd483067709c8c4f7b75c29464eff

    SHA256

    236f2acb03d56106f0e6b693108f25ed2eb9b7d0503a84e6948e797f8c15dd6b

    SHA512

    f51619a769fc86bc091bd1a534c6cac5d8c426ddd9784fd98bb23b7f0c699fcc473722dffa1196391c3e92f4647ce96de4b3326c25f49014552b0346a6f4e2c9

  • C:\Users\Admin\AppData\Roaming\Nreg.bat

    Filesize

    124B

    MD5

    5dcd3f0dbe707b6c4c54020c88f722cd

    SHA1

    9343cc6c911f5a80a010d501428ce9a347acfcf2

    SHA256

    4e61546611506a8f677c6e45e4c8124a5a2f0a7c4a0525bbcb5b590fd23ab345

    SHA512

    a44eb7fffba50a852590e0f3d7505f0120a2bdde67839eddcd50e84a44f4b6e0f7b867533694f153432534a7bb52aac0a4471a086d2d10881a839501bc4cbfaa

  • memory/1980-54-0x0000000075831000-0x0000000075833000-memory.dmp

    Filesize

    8KB

  • memory/1980-55-0x0000000000400000-0x000000000047E000-memory.dmp

    Filesize

    504KB

  • memory/1980-63-0x0000000003230000-0x0000000003240000-memory.dmp

    Filesize

    64KB

  • memory/1980-64-0x0000000000400000-0x000000000047E000-memory.dmp

    Filesize

    504KB