Analysis

  • max time kernel
    151s
  • max time network
    48s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    24-11-2022 00:17

General

  • Target

    c0a1a2d60b941a64c0ee2c717f4b9e846a1fcf9f6f1f606114053c752cd9dc87.exe

  • Size

    268KB

  • MD5

    536096802a53fe15d4e7adc64e4f25a0

  • SHA1

    bb48439b18ac2fcb6d6cf1ae47266ffd64d4a86e

  • SHA256

    c0a1a2d60b941a64c0ee2c717f4b9e846a1fcf9f6f1f606114053c752cd9dc87

  • SHA512

    96db14613b87c75fb08807f7a9d5111e46c0f6868f8282c5d396f92a7f5ab7df4cdd79595b1eb9cdb71075f699c0c813f4f27bb3fc6f603bc27db323308dd507

  • SSDEEP

    3072:asSQrIhZDY1zuBvLen8DlZniqBXv7yOsWvgbsmmHX0WRgs:aCMQ1qFy8xZnisyOs2THEWRj

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\c0a1a2d60b941a64c0ee2c717f4b9e846a1fcf9f6f1f606114053c752cd9dc87.exe
    "C:\Users\Admin\AppData\Local\Temp\c0a1a2d60b941a64c0ee2c717f4b9e846a1fcf9f6f1f606114053c752cd9dc87.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:1228
    • C:\Users\Admin\yeuuju.exe
      "C:\Users\Admin\yeuuju.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:948

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\yeuuju.exe

    Filesize

    268KB

    MD5

    5d07101e8dd3c22bdb3aae983c96c663

    SHA1

    20053f06696b80aaa48165fdc3ad69aaf63b9db2

    SHA256

    a9c30def203bb5afc2ef05e1fef40a2faa3bf3d6fbe2eba67394ec47ae21f0f0

    SHA512

    ec7a32273c79e3497ac872c5b7b725255efbafef207fe5f129859c4b4424b6ac826ff98afdc803eb3995ea03d4cd33f454bda94887b7364448e492591952b895

  • C:\Users\Admin\yeuuju.exe

    Filesize

    268KB

    MD5

    5d07101e8dd3c22bdb3aae983c96c663

    SHA1

    20053f06696b80aaa48165fdc3ad69aaf63b9db2

    SHA256

    a9c30def203bb5afc2ef05e1fef40a2faa3bf3d6fbe2eba67394ec47ae21f0f0

    SHA512

    ec7a32273c79e3497ac872c5b7b725255efbafef207fe5f129859c4b4424b6ac826ff98afdc803eb3995ea03d4cd33f454bda94887b7364448e492591952b895

  • \Users\Admin\yeuuju.exe

    Filesize

    268KB

    MD5

    5d07101e8dd3c22bdb3aae983c96c663

    SHA1

    20053f06696b80aaa48165fdc3ad69aaf63b9db2

    SHA256

    a9c30def203bb5afc2ef05e1fef40a2faa3bf3d6fbe2eba67394ec47ae21f0f0

    SHA512

    ec7a32273c79e3497ac872c5b7b725255efbafef207fe5f129859c4b4424b6ac826ff98afdc803eb3995ea03d4cd33f454bda94887b7364448e492591952b895

  • \Users\Admin\yeuuju.exe

    Filesize

    268KB

    MD5

    5d07101e8dd3c22bdb3aae983c96c663

    SHA1

    20053f06696b80aaa48165fdc3ad69aaf63b9db2

    SHA256

    a9c30def203bb5afc2ef05e1fef40a2faa3bf3d6fbe2eba67394ec47ae21f0f0

    SHA512

    ec7a32273c79e3497ac872c5b7b725255efbafef207fe5f129859c4b4424b6ac826ff98afdc803eb3995ea03d4cd33f454bda94887b7364448e492591952b895

  • memory/948-59-0x0000000000000000-mapping.dmp

  • memory/1228-56-0x0000000075A11000-0x0000000075A13000-memory.dmp

    Filesize

    8KB