Analysis

  • max time kernel
    150s
  • max time network
    165s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    08-05-2022 07:26

General

  • Target

    94a169116f328f6c59a5d90eaa87e070fadf47211b66c246c93d513550eb5ce0.exe

  • Size

    442KB

  • MD5

    5b94d54679128d9eca615d310b94fedf

  • SHA1

    52f735724d34f8036b9f3cb9b26521172fe6b7d1

  • SHA256

    94a169116f328f6c59a5d90eaa87e070fadf47211b66c246c93d513550eb5ce0

  • SHA512

    059d5708658adef150a3a22eec6f31aa5d3b7b7f0c1e0639dd919c590ea04cdcf31f4a444ebbbbacc1af70ddd46ede90f9b4311c67e2046c11c1cc9adf805e22

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\94a169116f328f6c59a5d90eaa87e070fadf47211b66c246c93d513550eb5ce0.exe
    "C:\Users\Admin\AppData\Local\Temp\94a169116f328f6c59a5d90eaa87e070fadf47211b66c246c93d513550eb5ce0.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:2604
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2604 -s 616
      2⤵
      • Program crash
      PID:4956
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2604 -s 624
      2⤵
      • Program crash
      PID:2612
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2604 -s 624
      2⤵
      • Program crash
      PID:4664
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2604 -s 792
      2⤵
      • Program crash
      PID:1956
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2604 -s 848
      2⤵
      • Program crash
      PID:4232
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2604 -s 1080
      2⤵
      • Program crash
      PID:540
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2604 -s 808
      2⤵
      • Program crash
      PID:3220
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c taskkill /im "94a169116f328f6c59a5d90eaa87e070fadf47211b66c246c93d513550eb5ce0.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\94a169116f328f6c59a5d90eaa87e070fadf47211b66c246c93d513550eb5ce0.exe" & exit
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3852
      • C:\Windows\SysWOW64\taskkill.exe
        taskkill /im "94a169116f328f6c59a5d90eaa87e070fadf47211b66c246c93d513550eb5ce0.exe" /f
        3⤵
        • Kills process with taskkill
        • Suspicious use of AdjustPrivilegeToken
        PID:4988
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2604 -s 1416
      2⤵
      • Program crash
      PID:1616
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 2604 -ip 2604
    1⤵
      PID:2924
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 2604 -ip 2604
      1⤵
        PID:2064
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 384 -p 2604 -ip 2604
        1⤵
          PID:4696
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 548 -p 2604 -ip 2604
          1⤵
            PID:4684
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -pss -s 564 -p 2604 -ip 2604
            1⤵
              PID:4424
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 2604 -ip 2604
              1⤵
                PID:3028
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -pss -s 584 -p 2604 -ip 2604
                1⤵
                  PID:3900
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 596 -p 2604 -ip 2604
                  1⤵
                    PID:3308

                  Network

                  MITRE ATT&CK Enterprise v6

                  Replay Monitor

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                  Downloads

                  • memory/2604-130-0x0000000000CDD000-0x0000000000D05000-memory.dmp

                    Filesize

                    160KB

                  • memory/2604-131-0x0000000002980000-0x00000000029C6000-memory.dmp

                    Filesize

                    280KB

                  • memory/2604-132-0x0000000000400000-0x0000000000C4B000-memory.dmp

                    Filesize

                    8.3MB

                  • memory/3852-133-0x0000000000000000-mapping.dmp

                  • memory/4988-134-0x0000000000000000-mapping.dmp