Analysis

  • max time kernel
    120s
  • max time network
    126s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    18-04-2022 12:02

General

  • Target

    1588be46792c219d3a936486cc43a7417b5acff22c7dd580fbc2ad1a246f3a43.exe

  • Size

    510KB

  • MD5

    22d86f1d536b0ecebb81a257039b7436

  • SHA1

    2d2226fef39f76f11f5ebe818675bd06306a0865

  • SHA256

    1588be46792c219d3a936486cc43a7417b5acff22c7dd580fbc2ad1a246f3a43

  • SHA512

    87ffcf381813b3202d141202ebf942a2f0ce4248f3080f8065ca66061d6ce60e97d28b67d4ebd12cd1f66e58ce7e74d22f1d2fe484bc93314a2bf1c3b9bfa4e9

Score
10/10

Malware Config

Signatures

  • OnlyLogger

    A tiny loader that uses IPLogger to get its payload.

  • OnlyLogger Payload 2 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 8 IoCs
  • Kills process with taskkill 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\1588be46792c219d3a936486cc43a7417b5acff22c7dd580fbc2ad1a246f3a43.exe
    "C:\Users\Admin\AppData\Local\Temp\1588be46792c219d3a936486cc43a7417b5acff22c7dd580fbc2ad1a246f3a43.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:4704
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4704 -s 612
      2⤵
      • Program crash
      PID:3740
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4704 -s 632
      2⤵
      • Program crash
      PID:4100
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4704 -s 744
      2⤵
      • Program crash
      PID:3968
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4704 -s 780
      2⤵
      • Program crash
      PID:2276
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4704 -s 524
      2⤵
      • Program crash
      PID:4356
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4704 -s 1088
      2⤵
      • Program crash
      PID:680
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4704 -s 1212
      2⤵
      • Program crash
      PID:1608
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c taskkill /im "1588be46792c219d3a936486cc43a7417b5acff22c7dd580fbc2ad1a246f3a43.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\1588be46792c219d3a936486cc43a7417b5acff22c7dd580fbc2ad1a246f3a43.exe" & exit
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1512
      • C:\Windows\SysWOW64\taskkill.exe
        taskkill /im "1588be46792c219d3a936486cc43a7417b5acff22c7dd580fbc2ad1a246f3a43.exe" /f
        3⤵
        • Kills process with taskkill
        • Suspicious use of AdjustPrivilegeToken
        PID:4152
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4704 -s 1264
      2⤵
      • Program crash
      PID:4240
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 188 -p 4704 -ip 4704
    1⤵
      PID:4692
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 4704 -ip 4704
      1⤵
        PID:2032
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 4704 -ip 4704
        1⤵
          PID:3400
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 472 -p 4704 -ip 4704
          1⤵
            PID:4668
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 4704 -ip 4704
            1⤵
              PID:4508
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 4704 -ip 4704
              1⤵
                PID:4552
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -pss -s 552 -p 4704 -ip 4704
                1⤵
                  PID:4092
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 4704 -ip 4704
                  1⤵
                    PID:2616

                  Network

                  MITRE ATT&CK Enterprise v6

                  Replay Monitor

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                  Downloads

                  • memory/4704-131-0x00000000040A0000-0x00000000040E6000-memory.dmp

                    Filesize

                    280KB

                  • memory/4704-130-0x000000000261C000-0x0000000002644000-memory.dmp

                    Filesize

                    160KB

                  • memory/4704-132-0x0000000000400000-0x000000000233B000-memory.dmp

                    Filesize

                    31.2MB