Analysis

  • max time kernel
    146s
  • max time network
    174s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    11-05-2022 02:40

General

  • Target

    e2eb5aa43cc071dfbfc438623729d0ccc6d4510cba1e729271ac9753e1fefc5b.exe

  • Size

    228KB

  • MD5

    824d13b6e398268665ef821d69bc2725

  • SHA1

    b49ed939e73ff6d031591a6c6f937b3f1d55acdf

  • SHA256

    e2eb5aa43cc071dfbfc438623729d0ccc6d4510cba1e729271ac9753e1fefc5b

  • SHA512

    deb82aeb06d4651f758e5b8de11f7a6722bf6658c83a954d97ecbc87ea6c570b9b0303ac8109b228b39e275b5876a3070a924cb057c3ee9d96ba146aa87297ee

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\e2eb5aa43cc071dfbfc438623729d0ccc6d4510cba1e729271ac9753e1fefc5b.exe
    "C:\Users\Admin\AppData\Local\Temp\e2eb5aa43cc071dfbfc438623729d0ccc6d4510cba1e729271ac9753e1fefc5b.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:4860
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4860 -s 612
      2⤵
      • Program crash
      PID:1384
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4860 -s 620
      2⤵
      • Program crash
      PID:5084
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4860 -s 736
      2⤵
      • Program crash
      PID:2300
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4860 -s 744
      2⤵
      • Program crash
      PID:4944
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4860 -s 872
      2⤵
      • Program crash
      PID:5088
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4860 -s 1092
      2⤵
      • Program crash
      PID:4976
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4860 -s 1236
      2⤵
      • Program crash
      PID:4836
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c taskkill /im "e2eb5aa43cc071dfbfc438623729d0ccc6d4510cba1e729271ac9753e1fefc5b.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\e2eb5aa43cc071dfbfc438623729d0ccc6d4510cba1e729271ac9753e1fefc5b.exe" & exit
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2896
      • C:\Windows\SysWOW64\taskkill.exe
        taskkill /im "e2eb5aa43cc071dfbfc438623729d0ccc6d4510cba1e729271ac9753e1fefc5b.exe" /f
        3⤵
        • Kills process with taskkill
        • Suspicious use of AdjustPrivilegeToken
        PID:3756
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4860 -s 1240
      2⤵
      • Program crash
      PID:2972
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 204 -p 4860 -ip 4860
    1⤵
      PID:2908
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 4860 -ip 4860
      1⤵
        PID:644
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 4860 -ip 4860
        1⤵
          PID:2448
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 544 -p 4860 -ip 4860
          1⤵
            PID:2264
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 4860 -ip 4860
            1⤵
              PID:4872
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -pss -s 548 -p 4860 -ip 4860
              1⤵
                PID:3576
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -pss -s 580 -p 4860 -ip 4860
                1⤵
                  PID:4312
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 552 -p 4860 -ip 4860
                  1⤵
                    PID:1960

                  Network

                  MITRE ATT&CK Enterprise v6

                  Replay Monitor

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                  Downloads

                  • memory/2896-133-0x0000000000000000-mapping.dmp

                  • memory/3756-134-0x0000000000000000-mapping.dmp

                  • memory/4860-130-0x0000000001079000-0x00000000010A1000-memory.dmp

                    Filesize

                    160KB

                  • memory/4860-131-0x0000000002D50000-0x0000000002D96000-memory.dmp

                    Filesize

                    280KB

                  • memory/4860-132-0x0000000000400000-0x0000000000F96000-memory.dmp

                    Filesize

                    11.6MB