Analysis

  • max time kernel
    132s
  • max time network
    156s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    11-05-2022 02:40

General

  • Target

    8a247a04783a7f2c1bda188afc2193a523001e698543fc3175375767833f66a0.exe

  • Size

    323KB

  • MD5

    d83653278606c5f648c78ad1b6555c64

  • SHA1

    8446eca4631b6153560ad382f63274649e7426b3

  • SHA256

    8a247a04783a7f2c1bda188afc2193a523001e698543fc3175375767833f66a0

  • SHA512

    3ffdb5d5102db1d4e7b4c4e4f3cdb095dfa446cec8c22fc1707e3983b3bd39d85d33ff48d1a163a69ab81c3598d31188c1aee612b6cb1ec69016f768debce89e

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\8a247a04783a7f2c1bda188afc2193a523001e698543fc3175375767833f66a0.exe
    "C:\Users\Admin\AppData\Local\Temp\8a247a04783a7f2c1bda188afc2193a523001e698543fc3175375767833f66a0.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:4628
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4628 -s 612
      2⤵
      • Program crash
      PID:4928
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4628 -s 632
      2⤵
      • Program crash
      PID:740
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4628 -s 736
      2⤵
      • Program crash
      PID:4852
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4628 -s 792
      2⤵
      • Program crash
      PID:3152
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4628 -s 1088
      2⤵
      • Program crash
      PID:4632
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4628 -s 1160
      2⤵
      • Program crash
      PID:3732
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4628 -s 1216
      2⤵
      • Program crash
      PID:4612
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c taskkill /im "8a247a04783a7f2c1bda188afc2193a523001e698543fc3175375767833f66a0.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\8a247a04783a7f2c1bda188afc2193a523001e698543fc3175375767833f66a0.exe" & exit
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:864
      • C:\Windows\SysWOW64\taskkill.exe
        taskkill /im "8a247a04783a7f2c1bda188afc2193a523001e698543fc3175375767833f66a0.exe" /f
        3⤵
        • Kills process with taskkill
        • Suspicious use of AdjustPrivilegeToken
        PID:1692
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4628 -s 1112
      2⤵
      • Program crash
      PID:548
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4628 -ip 4628
    1⤵
      PID:348
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 4628 -ip 4628
      1⤵
        PID:5056
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 4628 -ip 4628
        1⤵
          PID:3456
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 4628 -ip 4628
          1⤵
            PID:3740
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 4628 -ip 4628
            1⤵
              PID:452
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 4628 -ip 4628
              1⤵
                PID:632
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -pss -s 544 -p 4628 -ip 4628
                1⤵
                  PID:2960
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 576 -p 4628 -ip 4628
                  1⤵
                    PID:4784
                  • C:\Windows\system32\svchost.exe
                    C:\Windows\system32\svchost.exe -k appmodel -p -s camsvc
                    1⤵
                      PID:4236

                    Network

                    MITRE ATT&CK Enterprise v6

                    Replay Monitor

                    Loading Replay Monitor...

                    Downloads

                    • memory/864-133-0x0000000000000000-mapping.dmp

                    • memory/1692-134-0x0000000000000000-mapping.dmp

                    • memory/4628-130-0x000000000511E000-0x0000000005146000-memory.dmp

                      Filesize

                      160KB

                    • memory/4628-131-0x0000000004F10000-0x0000000004F56000-memory.dmp

                      Filesize

                      280KB

                    • memory/4628-132-0x0000000000400000-0x0000000004DCD000-memory.dmp

                      Filesize

                      73.8MB