Analysis

  • max time kernel
    180s
  • max time network
    207s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    11-05-2022 02:27

General

  • Target

    2cb27b0eb5d007394c13b6d21e079f6e06d5a8d3e3a4ea541cbf04b4d29523c6.exe

  • Size

    329KB

  • MD5

    e5f43915f2c0d360df5f85384bf558af

  • SHA1

    031ec5f080777aadc8eebc7736ad631882702eb4

  • SHA256

    2cb27b0eb5d007394c13b6d21e079f6e06d5a8d3e3a4ea541cbf04b4d29523c6

  • SHA512

    a3bfeb57ae27c93e280ac3be44ed37871f04985d78a540d0351231c04dc8e7acf5ccc2ee7254286a3b7117cbb0fed89ae463de6652b83173de4e9b8e3f2db308

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 9 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\2cb27b0eb5d007394c13b6d21e079f6e06d5a8d3e3a4ea541cbf04b4d29523c6.exe
    "C:\Users\Admin\AppData\Local\Temp\2cb27b0eb5d007394c13b6d21e079f6e06d5a8d3e3a4ea541cbf04b4d29523c6.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:2996
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2996 -s 612
      2⤵
      • Program crash
      PID:2168
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2996 -s 652
      2⤵
      • Program crash
      PID:3328
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2996 -s 764
      2⤵
      • Program crash
      PID:2216
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2996 -s 772
      2⤵
      • Program crash
      PID:3780
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2996 -s 1064
      2⤵
      • Program crash
      PID:3880
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2996 -s 1104
      2⤵
      • Program crash
      PID:1728
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2996 -s 1020
      2⤵
      • Program crash
      PID:1504
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2996 -s 1100
      2⤵
      • Program crash
      PID:1532
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c taskkill /im "2cb27b0eb5d007394c13b6d21e079f6e06d5a8d3e3a4ea541cbf04b4d29523c6.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\2cb27b0eb5d007394c13b6d21e079f6e06d5a8d3e3a4ea541cbf04b4d29523c6.exe" & exit
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1708
      • C:\Windows\SysWOW64\taskkill.exe
        taskkill /im "2cb27b0eb5d007394c13b6d21e079f6e06d5a8d3e3a4ea541cbf04b4d29523c6.exe" /f
        3⤵
        • Kills process with taskkill
        • Suspicious use of AdjustPrivilegeToken
        PID:3364
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2996 -s 1244
      2⤵
      • Program crash
      PID:3108
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2996 -ip 2996
    1⤵
      PID:1320
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 2996 -ip 2996
      1⤵
        PID:2156
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 2996 -ip 2996
        1⤵
          PID:1420
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 548 -p 2996 -ip 2996
          1⤵
            PID:112
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 2996 -ip 2996
            1⤵
              PID:1212
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -pss -s 568 -p 2996 -ip 2996
              1⤵
                PID:3364
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 2996 -ip 2996
                1⤵
                  PID:1688
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 560 -p 2996 -ip 2996
                  1⤵
                    PID:820
                  • C:\Windows\SysWOW64\WerFault.exe
                    C:\Windows\SysWOW64\WerFault.exe -pss -s 472 -p 2996 -ip 2996
                    1⤵
                      PID:1680

                    Network

                    MITRE ATT&CK Enterprise v6

                    Replay Monitor

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                    Downloads

                    • memory/1708-133-0x0000000000000000-mapping.dmp

                    • memory/2996-131-0x0000000002150000-0x0000000002196000-memory.dmp

                      Filesize

                      280KB

                    • memory/2996-130-0x00000000007C8000-0x00000000007F0000-memory.dmp

                      Filesize

                      160KB

                    • memory/2996-132-0x0000000000400000-0x00000000004F8000-memory.dmp

                      Filesize

                      992KB

                    • memory/3364-134-0x0000000000000000-mapping.dmp