Analysis

  • max time kernel
    95s
  • max time network
    140s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    12-05-2022 12:00

General

  • Target

    4ce6cd07bcac1f637e4b5202c91957d3b3d0f77c19dbe53e0ef30f7baf766f39.exe

  • Size

    227KB

  • MD5

    2af5a00d00befdcbc1a04d8a993ddfeb

  • SHA1

    838211204c6a17149aa027882d4be61c4b29ce33

  • SHA256

    4ce6cd07bcac1f637e4b5202c91957d3b3d0f77c19dbe53e0ef30f7baf766f39

  • SHA512

    866efcf751fe16d1607a17d16248b9bf68127f455a90c485628d7d45fce7155b705b38882e6bad83c9c926b5fad3189914e08312aa775b481678daf5dd5fc97b

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 1 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\4ce6cd07bcac1f637e4b5202c91957d3b3d0f77c19dbe53e0ef30f7baf766f39.exe
    "C:\Users\Admin\AppData\Local\Temp\4ce6cd07bcac1f637e4b5202c91957d3b3d0f77c19dbe53e0ef30f7baf766f39.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:4032
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c taskkill /im "4ce6cd07bcac1f637e4b5202c91957d3b3d0f77c19dbe53e0ef30f7baf766f39.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\4ce6cd07bcac1f637e4b5202c91957d3b3d0f77c19dbe53e0ef30f7baf766f39.exe" & exit
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4784
      • C:\Windows\SysWOW64\taskkill.exe
        taskkill /im "4ce6cd07bcac1f637e4b5202c91957d3b3d0f77c19dbe53e0ef30f7baf766f39.exe" /f
        3⤵
        • Kills process with taskkill
        • Suspicious use of AdjustPrivilegeToken
        PID:1924
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4032 -s 1076
      2⤵
      • Program crash
      PID:4780
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 472 -p 4032 -ip 4032
    1⤵
      PID:2020

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • memory/1924-134-0x0000000000000000-mapping.dmp

    • memory/4032-130-0x00000000012D3000-0x00000000012FB000-memory.dmp

      Filesize

      160KB

    • memory/4032-131-0x0000000001070000-0x00000000010B6000-memory.dmp

      Filesize

      280KB

    • memory/4032-132-0x0000000000400000-0x0000000000F96000-memory.dmp

      Filesize

      11.6MB

    • memory/4784-133-0x0000000000000000-mapping.dmp