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13-08-2021 10:16

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Analysis

  • max time kernel
    4s
  • max time network
    18s
  • platform
    windows7_x64
  • resource
    win7v20210410
  • submitted
    24-07-2021 13:20

General

  • Target

    8 (23).exe

  • Size

    3.0MB

  • MD5

    bb072cad921aa5ce8b97706ce01bc570

  • SHA1

    18bf034906c1341b7817e7361ad27a4425d820bd

  • SHA256

    817a50d00909383bbef41e6f4e61b527d55f0873bcf745b29dbba75f52fe2e97

  • SHA512

    d40e5f77d882ed29bd9de5a6848072e2f81cd02176955e2b1a4aedcdf4eb687d77bebe33cef0c7d702bc828181755f86e2564523d476adbb785f396a5ce1d474

Score
8/10

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8 (23).exe
    "C:\Users\Admin\AppData\Local\Temp\8 (23).exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:772
    • C:\Users\Admin\AppData\Local\Temp\setup_installer.exe
      "C:\Users\Admin\AppData\Local\Temp\setup_installer.exe"
      2⤵
      • Executes dropped EXE
      PID:1804

Network

MITRE ATT&CK Matrix ATT&CK v6

Discovery

System Information Discovery

1
T1082

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\setup_installer.exe
    MD5

    74231678f536a19b3016840f56b845c7

    SHA1

    a5645777558a7d5905e101e54d61b0c8c1120de3

    SHA256

    cd53d44c68b4b58f88aa945ca38dd18e0a66c3f0854f5868fbea4345f7819fb4

    SHA512

    4117ad2bcdca9104ca8a53df0f7de102509ba6eb264d025ab1facd7a7ca0c14a1c4dd17de130521c4169aaaaeb6e779579dcb16d63a58b77feebfdc32d983d1f

  • \Users\Admin\AppData\Local\Temp\setup_installer.exe
    MD5

    74231678f536a19b3016840f56b845c7

    SHA1

    a5645777558a7d5905e101e54d61b0c8c1120de3

    SHA256

    cd53d44c68b4b58f88aa945ca38dd18e0a66c3f0854f5868fbea4345f7819fb4

    SHA512

    4117ad2bcdca9104ca8a53df0f7de102509ba6eb264d025ab1facd7a7ca0c14a1c4dd17de130521c4169aaaaeb6e779579dcb16d63a58b77feebfdc32d983d1f

  • memory/772-59-0x0000000075EF1000-0x0000000075EF3000-memory.dmp
    Filesize

    8KB

  • memory/1804-61-0x0000000000000000-mapping.dmp