Analysis

  • max time kernel
    150s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240412-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
  • submitted
    17-04-2024 13:37

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 5 IoCs
  • UAC bypass 3 TTPs 2 IoCs
  • Renames multiple (171) files with added filename extension

    This suggests ransomware activity of encrypting all the files on the system.

  • 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).

  • Program crash 8 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:760
    • C:\Windows\SysWOW64\Wbem\wmic.exe
      wmic.exe SHADOWCOPY /nointeractive
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:3896
    • C:\Windows\SysWOW64\Wbem\wmic.exe
      wmic.exe SHADOWCOPY /nointeractive
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:4164
    • C:\Windows\SysWOW64\Wbem\wmic.exe
      wmic.exe SHADOWCOPY /nointeractive
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:2328
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 760 -s 860
      2⤵
      • Program crash
      PID:4724
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 760 -s 896
      2⤵
      • Program crash
      PID:4476
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 760 -s 888
      2⤵
      • Program crash
      PID:3084
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 760 -s 900
      2⤵
      • Program crash
      PID:5024
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 760 -s 888
      2⤵
      • Program crash
      PID:3112
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 760 -s 1172
      2⤵
      • Program crash
      PID:1932
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 760 -s 1144
      2⤵
      • Program crash
      PID:1064
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 760 -s 1104
      2⤵
      • Program crash
      PID:960
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 760 -ip 760
    1⤵
      PID:516
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 760 -ip 760
      1⤵
        PID:4036
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 760 -ip 760
        1⤵
          PID:3552
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 360 -p 760 -ip 760
          1⤵
            PID:1140
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 760 -ip 760
            1⤵
              PID:2844
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 760 -ip 760
              1⤵
                PID:3608
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 760 -ip 760
                1⤵
                  PID:1880
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 508 -p 760 -ip 760
                  1⤵
                    PID:2844

                  Network

                  MITRE ATT&CK Enterprise v15

                  Replay Monitor

                  Loading Replay Monitor...

                  Downloads

                  • memory/760-1-0x00000000034E0000-0x00000000035E0000-memory.dmp

                    Filesize

                    1024KB

                  • memory/760-2-0x00000000037E0000-0x00000000038F7000-memory.dmp

                    Filesize

                    1.1MB

                  • memory/760-3-0x0000000000400000-0x000000000330D000-memory.dmp

                    Filesize

                    47.1MB

                  • memory/760-61-0x0000000000400000-0x000000000330D000-memory.dmp

                    Filesize

                    47.1MB

                  • memory/760-350-0x0000000000400000-0x000000000330D000-memory.dmp

                    Filesize

                    47.1MB

                  • memory/760-351-0x00000000034E0000-0x00000000035E0000-memory.dmp

                    Filesize

                    1024KB

                  • memory/760-352-0x00000000037E0000-0x00000000038F7000-memory.dmp

                    Filesize

                    1.1MB