Analysis

  • max time kernel
    108s
  • max time network
    130s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    18-04-2022 16:14

General

  • Target

    ee5b6ae8714a10c59d415b59114d1c6901a9dfc60f0b1111eabd49a6ca0b5d69.exe

  • Size

    350KB

  • MD5

    ec20f59c643f79deb7283f412064de0c

  • SHA1

    63c6c812dcaabb37af21221543a6a67e828233d1

  • SHA256

    ee5b6ae8714a10c59d415b59114d1c6901a9dfc60f0b1111eabd49a6ca0b5d69

  • SHA512

    1c4d907c6159c5eb9e962d3ea49aad7efaaf9657c9c400da547ef1cc244fe4a1ee6eb55112552b8cc3b5cabd35bc6234c469991276a0bc064a632a5721cd4dec

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\ee5b6ae8714a10c59d415b59114d1c6901a9dfc60f0b1111eabd49a6ca0b5d69.exe
    "C:\Users\Admin\AppData\Local\Temp\ee5b6ae8714a10c59d415b59114d1c6901a9dfc60f0b1111eabd49a6ca0b5d69.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:1376
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1376 -s 612
      2⤵
      • Program crash
      PID:1276
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1376 -s 632
      2⤵
      • Program crash
      PID:4624
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1376 -s 640
      2⤵
      • Program crash
      PID:5080
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1376 -s 760
      2⤵
      • Program crash
      PID:4824
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1376 -s 800
      2⤵
      • Program crash
      PID:4676
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1376 -s 860
      2⤵
      • Program crash
      PID:4404
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1376 -s 1064
      2⤵
      • Program crash
      PID:4292
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1376 -s 1232
      2⤵
      • Program crash
      PID:3816
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c taskkill /im "ee5b6ae8714a10c59d415b59114d1c6901a9dfc60f0b1111eabd49a6ca0b5d69.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\ee5b6ae8714a10c59d415b59114d1c6901a9dfc60f0b1111eabd49a6ca0b5d69.exe" & exit
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4612
      • C:\Windows\SysWOW64\taskkill.exe
        taskkill /im "ee5b6ae8714a10c59d415b59114d1c6901a9dfc60f0b1111eabd49a6ca0b5d69.exe" /f
        3⤵
        • Kills process with taskkill
        • Suspicious use of AdjustPrivilegeToken
        PID:2236
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1376 -s 1268
      2⤵
      • Program crash
      PID:2216
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 1376 -ip 1376
    1⤵
      PID:4088
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 360 -p 1376 -ip 1376
      1⤵
        PID:4356
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 1376 -ip 1376
        1⤵
          PID:1668
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 1376 -ip 1376
          1⤵
            PID:4844
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 1376 -ip 1376
            1⤵
              PID:2068
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 1376 -ip 1376
              1⤵
                PID:4900
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -pss -s 556 -p 1376 -ip 1376
                1⤵
                  PID:4756
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 1376 -ip 1376
                  1⤵
                    PID:5064
                  • C:\Windows\SysWOW64\WerFault.exe
                    C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 1376 -ip 1376
                    1⤵
                      PID:4580

                    Network

                    MITRE ATT&CK Enterprise v6

                    Replay Monitor

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                    Downloads

                    • memory/1376-130-0x0000000000EEE000-0x0000000000F16000-memory.dmp

                      Filesize

                      160KB

                    • memory/1376-131-0x0000000000EEE000-0x0000000000F16000-memory.dmp

                      Filesize

                      160KB

                    • memory/1376-132-0x0000000002970000-0x00000000029B6000-memory.dmp

                      Filesize

                      280KB

                    • memory/1376-133-0x0000000000400000-0x0000000000C31000-memory.dmp

                      Filesize

                      8.2MB