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Analysis

  • max time kernel
    148s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230220-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11/03/2023, 13:44

General

  • Target

    48689c986eb553e6a7aeba973501b9660cb1418d4ec3ba9d0511f82799d1422c.exe

  • Size

    645KB

  • MD5

    79cdf459683c39e9704a37a6be9bc877

  • SHA1

    450d4f351c3dd168e313b309da4bd8a817453d1d

  • SHA256

    48689c986eb553e6a7aeba973501b9660cb1418d4ec3ba9d0511f82799d1422c

  • SHA512

    2cc3f164e92650c4d4aed7012da7d303d24cdc63565ed744a28cb6d59465189233a128a01f4b807aa972057e0d0d98742c5ca9b41a67bf59f0f115de30eb6bd4

  • SSDEEP

    12288:Ya8gND5n7gG2WERaCyDVbdlSQLeYBgdAULx9mutZo5B:YgNDBg3JRaCyDVplSUBgrHtZor

Malware Config

Signatures

  • Avaddon

    Ransomware-as-a-service first released in June 2020 and currently expanding its userbase among criminal actors.

  • Avaddon payload 3 IoCs
  • UAC bypass 3 TTPs 2 IoCs
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Drops desktop.ini file(s) 1 IoCs
  • Enumerates connected drives 3 TTPs 24 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 7 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 63 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs
  • System policy modification 1 TTPs 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\48689c986eb553e6a7aeba973501b9660cb1418d4ec3ba9d0511f82799d1422c.exe
    "C:\Users\Admin\AppData\Local\Temp\48689c986eb553e6a7aeba973501b9660cb1418d4ec3ba9d0511f82799d1422c.exe"
    1⤵
    • UAC bypass
    • Checks whether UAC is enabled
    • Drops desktop.ini file(s)
    • Enumerates connected drives
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    • System policy modification
    PID:3592
    • C:\Windows\SysWOW64\Wbem\wmic.exe
      wmic.exe SHADOWCOPY /nointeractive
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:216
    • C:\Windows\SysWOW64\Wbem\wmic.exe
      wmic.exe SHADOWCOPY /nointeractive
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:4988
    • C:\Windows\SysWOW64\Wbem\wmic.exe
      wmic.exe SHADOWCOPY /nointeractive
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:3884
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3592 -s 864
      2⤵
      • Program crash
      PID:2160
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3592 -s 864
      2⤵
      • Program crash
      PID:3508
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3592 -s 864
      2⤵
      • Program crash
      PID:1484
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3592 -s 912
      2⤵
      • Program crash
      PID:4504
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3592 -s 940
      2⤵
      • Program crash
      PID:4012
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3592 -s 1140
      2⤵
      • Program crash
      PID:4944
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3592 -s 936
      2⤵
      • Program crash
      PID:1124
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 3592 -ip 3592
    1⤵
      PID:1256
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 476 -p 3592 -ip 3592
      1⤵
        PID:3000
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 3592 -ip 3592
        1⤵
          PID:1704
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 484 -p 3592 -ip 3592
          1⤵
            PID:5080
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 3592 -ip 3592
            1⤵
              PID:1556
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -pss -s 548 -p 3592 -ip 3592
              1⤵
                PID:4728
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 3592 -ip 3592
                1⤵
                  PID:2064

                Network

                MITRE ATT&CK Enterprise v6

                Replay Monitor

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                Downloads

                • memory/3592-134-0x0000000003920000-0x0000000003A37000-memory.dmp

                  Filesize

                  1.1MB

                • memory/3592-286-0x0000000000400000-0x000000000330D000-memory.dmp

                  Filesize

                  47.1MB

                • memory/3592-467-0x0000000000400000-0x000000000330D000-memory.dmp

                  Filesize

                  47.1MB