Analysis

  • max time kernel
    136s
  • max time network
    158s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    18-04-2022 12:01

General

  • Target

    54b2f3e0e38d8a80023968c1fd48cab4907bb786ec91508df9872ef09813a3f6.exe

  • Size

    292KB

  • MD5

    7d4a0e70554fc22ab0c7d004fc975fb7

  • SHA1

    1aafaf24b7fdf3b9eb4c775c3ddae543f2969fc1

  • SHA256

    54b2f3e0e38d8a80023968c1fd48cab4907bb786ec91508df9872ef09813a3f6

  • SHA512

    2333fed33be25a870ce04090260ad880fcde3778820ae77045fbe805adf4c9aef820af5820e05e696352e14005ec5af689f82a1c5a7e6de156a9f15ab5be2ece

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\54b2f3e0e38d8a80023968c1fd48cab4907bb786ec91508df9872ef09813a3f6.exe
    "C:\Users\Admin\AppData\Local\Temp\54b2f3e0e38d8a80023968c1fd48cab4907bb786ec91508df9872ef09813a3f6.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:1604
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1604 -s 612
      2⤵
      • Program crash
      PID:3572
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1604 -s 632
      2⤵
      • Program crash
      PID:828
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1604 -s 640
      2⤵
      • Program crash
      PID:1940
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1604 -s 640
      2⤵
      • Program crash
      PID:2916
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1604 -s 640
      2⤵
      • Program crash
      PID:4512
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1604 -s 1200
      2⤵
      • Program crash
      PID:4916
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1604 -s 1236
      2⤵
      • Program crash
      PID:2140
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c taskkill /im "54b2f3e0e38d8a80023968c1fd48cab4907bb786ec91508df9872ef09813a3f6.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\54b2f3e0e38d8a80023968c1fd48cab4907bb786ec91508df9872ef09813a3f6.exe" & exit
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4988
      • C:\Windows\SysWOW64\taskkill.exe
        taskkill /im "54b2f3e0e38d8a80023968c1fd48cab4907bb786ec91508df9872ef09813a3f6.exe" /f
        3⤵
        • Kills process with taskkill
        • Suspicious use of AdjustPrivilegeToken
        PID:1104
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1604 -s 1284
      2⤵
      • Program crash
      PID:4756
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 1604 -ip 1604
    1⤵
      PID:3312
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 1604 -ip 1604
      1⤵
        PID:1380
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 1604 -ip 1604
        1⤵
          PID:4468
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 1604 -ip 1604
          1⤵
            PID:1456
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 1604 -ip 1604
            1⤵
              PID:4496
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 1604 -ip 1604
              1⤵
                PID:4572
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -pss -s 576 -p 1604 -ip 1604
                1⤵
                  PID:4896
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 564 -p 1604 -ip 1604
                  1⤵
                    PID:3156

                  Network

                  MITRE ATT&CK Enterprise v6

                  Replay Monitor

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                  Downloads

                  • memory/1604-130-0x00000000008AD000-0x00000000008D5000-memory.dmp

                    Filesize

                    160KB

                  • memory/1604-131-0x00000000008AD000-0x00000000008D5000-memory.dmp

                    Filesize

                    160KB

                  • memory/1604-132-0x0000000002240000-0x0000000002286000-memory.dmp

                    Filesize

                    280KB

                  • memory/1604-133-0x0000000000400000-0x0000000000503000-memory.dmp

                    Filesize

                    1.0MB