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Analysis

  • max time kernel
    151s
  • max time network
    47s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    07/12/2022, 03:05

General

  • Target

    57c1bc408eae92e7976efde417c5542dc98f460a2316f842c6e8c6400e5707b1.exe

  • Size

    156KB

  • MD5

    27c3ccf7250a2c6aa90505b38615b5a0

  • SHA1

    9d872a1688a15fc5a94ef65cc2448678af0fbf21

  • SHA256

    57c1bc408eae92e7976efde417c5542dc98f460a2316f842c6e8c6400e5707b1

  • SHA512

    e915a329bcaad00385efc4a81acc9038fc13d877b33d96cf136fb78ed53b11b9054bd5a4e314238b1c7d569c1e49ee9b31ca7856e04fb76b1e8e321d8b13db1a

  • SSDEEP

    3072:vLySUYWrO0VctCPmJIHERgRyRSIuznLstk4oQZiEKt:WEGPctCrE/RQLpWe

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 54 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\57c1bc408eae92e7976efde417c5542dc98f460a2316f842c6e8c6400e5707b1.exe
    "C:\Users\Admin\AppData\Local\Temp\57c1bc408eae92e7976efde417c5542dc98f460a2316f842c6e8c6400e5707b1.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:1224
    • C:\Users\Admin\buovu.exe
      "C:\Users\Admin\buovu.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:1584

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\buovu.exe

    Filesize

    156KB

    MD5

    f53b75768c9ee421b499095aaa88e470

    SHA1

    e68af02288e06467c8a5f8e438ca6aa6d716cf26

    SHA256

    9da3f9d21403e8217b1cb79c24d5e8d03877c81b2e4e1e888ad67e0641d14f90

    SHA512

    b6c92fd825009b7c60b8f5c83902761d15f14bf16770d78cdf5b2cf24b0496b0d7eba27dae2a77c44c37dbdbb6f82f52ec567eed65fba01e2c01a69495c5ca24

  • C:\Users\Admin\buovu.exe

    Filesize

    156KB

    MD5

    f53b75768c9ee421b499095aaa88e470

    SHA1

    e68af02288e06467c8a5f8e438ca6aa6d716cf26

    SHA256

    9da3f9d21403e8217b1cb79c24d5e8d03877c81b2e4e1e888ad67e0641d14f90

    SHA512

    b6c92fd825009b7c60b8f5c83902761d15f14bf16770d78cdf5b2cf24b0496b0d7eba27dae2a77c44c37dbdbb6f82f52ec567eed65fba01e2c01a69495c5ca24

  • \Users\Admin\buovu.exe

    Filesize

    156KB

    MD5

    f53b75768c9ee421b499095aaa88e470

    SHA1

    e68af02288e06467c8a5f8e438ca6aa6d716cf26

    SHA256

    9da3f9d21403e8217b1cb79c24d5e8d03877c81b2e4e1e888ad67e0641d14f90

    SHA512

    b6c92fd825009b7c60b8f5c83902761d15f14bf16770d78cdf5b2cf24b0496b0d7eba27dae2a77c44c37dbdbb6f82f52ec567eed65fba01e2c01a69495c5ca24

  • \Users\Admin\buovu.exe

    Filesize

    156KB

    MD5

    f53b75768c9ee421b499095aaa88e470

    SHA1

    e68af02288e06467c8a5f8e438ca6aa6d716cf26

    SHA256

    9da3f9d21403e8217b1cb79c24d5e8d03877c81b2e4e1e888ad67e0641d14f90

    SHA512

    b6c92fd825009b7c60b8f5c83902761d15f14bf16770d78cdf5b2cf24b0496b0d7eba27dae2a77c44c37dbdbb6f82f52ec567eed65fba01e2c01a69495c5ca24

  • memory/1224-56-0x0000000076041000-0x0000000076043000-memory.dmp

    Filesize

    8KB