Analysis

  • max time kernel
    111s
  • max time network
    116s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    18-04-2022 16:17

General

  • Target

    a1c6482b09a88afc310e669271bd2b18214cd462e69394d65375452c77ae9033.exe

  • Size

    350KB

  • MD5

    6559ad197f16d83cf36f61f415b4c72b

  • SHA1

    9469bbd33c6109d88f5d2aabc26e70dbb3c77735

  • SHA256

    a1c6482b09a88afc310e669271bd2b18214cd462e69394d65375452c77ae9033

  • SHA512

    5e57fd30a452ce7025458f6bbfe43245a7e3c77eaa980ad48097c56c296cb65d77224f730cd69837b0291c7f7acfd794d60314655f4f90c77324619e2cd51a80

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\a1c6482b09a88afc310e669271bd2b18214cd462e69394d65375452c77ae9033.exe
    "C:\Users\Admin\AppData\Local\Temp\a1c6482b09a88afc310e669271bd2b18214cd462e69394d65375452c77ae9033.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:4868
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4868 -s 628
      2⤵
      • Program crash
      PID:208
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4868 -s 648
      2⤵
      • Program crash
      PID:5020
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4868 -s 508
      2⤵
      • Program crash
      PID:4940
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4868 -s 632
      2⤵
      • Program crash
      PID:4768
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4868 -s 876
      2⤵
      • Program crash
      PID:4168
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4868 -s 1080
      2⤵
      • Program crash
      PID:4924
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4868 -s 1240
      2⤵
      • Program crash
      PID:2672
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c taskkill /im "a1c6482b09a88afc310e669271bd2b18214cd462e69394d65375452c77ae9033.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\a1c6482b09a88afc310e669271bd2b18214cd462e69394d65375452c77ae9033.exe" & exit
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2612
      • C:\Windows\SysWOW64\taskkill.exe
        taskkill /im "a1c6482b09a88afc310e669271bd2b18214cd462e69394d65375452c77ae9033.exe" /f
        3⤵
        • Kills process with taskkill
        • Suspicious use of AdjustPrivilegeToken
        PID:1484
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4868 -s 1376
      2⤵
      • Program crash
      PID:1200
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 4868 -ip 4868
    1⤵
      PID:1844
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 4868 -ip 4868
      1⤵
        PID:1556
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 552 -p 4868 -ip 4868
        1⤵
          PID:5048
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 564 -p 4868 -ip 4868
          1⤵
            PID:3704
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -pss -s 580 -p 4868 -ip 4868
            1⤵
              PID:4144
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -pss -s 592 -p 4868 -ip 4868
              1⤵
                PID:4908
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -pss -s 576 -p 4868 -ip 4868
                1⤵
                  PID:1480
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 572 -p 4868 -ip 4868
                  1⤵
                    PID:2408

                  Network

                  MITRE ATT&CK Enterprise v6

                  Replay Monitor

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                  Downloads

                  • memory/4868-130-0x0000000000DFE000-0x0000000000E26000-memory.dmp

                    Filesize

                    160KB

                  • memory/4868-131-0x0000000002980000-0x00000000029C6000-memory.dmp

                    Filesize

                    280KB

                  • memory/4868-132-0x0000000000400000-0x0000000000C31000-memory.dmp

                    Filesize

                    8.2MB