Analysis

  • max time kernel
    152s
  • max time network
    160s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    03-10-2022 06:50

General

  • Target

    1e499f4181cdd44d44fef3a5096af26d79ed3183a10b88a40fca4a274ae7fcf1.exe

  • Size

    573KB

  • MD5

    6a7fb43bc8f8f3930ba7a4540d6c16e0

  • SHA1

    390f62373e50c1e7848a79cf87b9c292fc46e476

  • SHA256

    1e499f4181cdd44d44fef3a5096af26d79ed3183a10b88a40fca4a274ae7fcf1

  • SHA512

    20f6b60cafc87c4621839448d27847179a0d979be81651da84824ddc8af0c6775f68adeebb0cc882ef635303f1e801af6fc0ab1573d1516cc1009ff433c26ffa

  • SSDEEP

    12288:bChzggPQoSk3qRlra/kb1CRnTP1Vs3kkG6FD:+hzgn/BcUCdPf0kkG6

Score
10/10

Malware Config

Signatures

  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 1 IoCs
  • Executes dropped EXE 2 IoCs
  • Sets file execution options in registry 2 TTPs 64 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Drops file in System32 directory 3 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 19 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\1e499f4181cdd44d44fef3a5096af26d79ed3183a10b88a40fca4a274ae7fcf1.exe
    "C:\Users\Admin\AppData\Local\Temp\1e499f4181cdd44d44fef3a5096af26d79ed3183a10b88a40fca4a274ae7fcf1.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4112
    • C:\Users\Admin\AppData\Local\Temp\1e499f4181cdd44d44fef3a5096af26d79ed3183a10b88a40fca4a274ae7fcf1.exe
      "C:\Users\Admin\AppData\Local\Temp\1e499f4181cdd44d44fef3a5096af26d79ed3183a10b88a40fca4a274ae7fcf1.exe"
      2⤵
      • Checks computer location settings
      • Drops file in System32 directory
      • Suspicious behavior: RenamesItself
      • Suspicious use of WriteProcessMemory
      PID:4700
      • C:\Windows\SysWOW64\Windows Services\win32.exe
        "C:\Windows\system32\Windows Services\win32.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:4608
        • C:\Windows\SysWOW64\Windows Services\win32.exe
          "C:\Windows\SysWOW64\Windows Services\win32.exe"
          4⤵
          • Modifies WinLogon for persistence
          • Modifies visiblity of hidden/system files in Explorer
          • Executes dropped EXE
          • Sets file execution options in registry
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious behavior: GetForegroundWindowSpam
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          PID:2280

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Windows\SysWOW64\Windows Services\win32.exe

    Filesize

    573KB

    MD5

    6a7fb43bc8f8f3930ba7a4540d6c16e0

    SHA1

    390f62373e50c1e7848a79cf87b9c292fc46e476

    SHA256

    1e499f4181cdd44d44fef3a5096af26d79ed3183a10b88a40fca4a274ae7fcf1

    SHA512

    20f6b60cafc87c4621839448d27847179a0d979be81651da84824ddc8af0c6775f68adeebb0cc882ef635303f1e801af6fc0ab1573d1516cc1009ff433c26ffa

  • C:\Windows\SysWOW64\Windows Services\win32.exe

    Filesize

    573KB

    MD5

    6a7fb43bc8f8f3930ba7a4540d6c16e0

    SHA1

    390f62373e50c1e7848a79cf87b9c292fc46e476

    SHA256

    1e499f4181cdd44d44fef3a5096af26d79ed3183a10b88a40fca4a274ae7fcf1

    SHA512

    20f6b60cafc87c4621839448d27847179a0d979be81651da84824ddc8af0c6775f68adeebb0cc882ef635303f1e801af6fc0ab1573d1516cc1009ff433c26ffa

  • C:\Windows\SysWOW64\Windows Services\win32.exe

    Filesize

    573KB

    MD5

    6a7fb43bc8f8f3930ba7a4540d6c16e0

    SHA1

    390f62373e50c1e7848a79cf87b9c292fc46e476

    SHA256

    1e499f4181cdd44d44fef3a5096af26d79ed3183a10b88a40fca4a274ae7fcf1

    SHA512

    20f6b60cafc87c4621839448d27847179a0d979be81651da84824ddc8af0c6775f68adeebb0cc882ef635303f1e801af6fc0ab1573d1516cc1009ff433c26ffa

  • memory/2280-147-0x0000000074A20000-0x0000000074FD1000-memory.dmp

    Filesize

    5.7MB

  • memory/2280-145-0x0000000074A20000-0x0000000074FD1000-memory.dmp

    Filesize

    5.7MB

  • memory/4112-132-0x0000000074A20000-0x0000000074FD1000-memory.dmp

    Filesize

    5.7MB

  • memory/4112-135-0x0000000074A20000-0x0000000074FD1000-memory.dmp

    Filesize

    5.7MB

  • memory/4608-140-0x0000000074A20000-0x0000000074FD1000-memory.dmp

    Filesize

    5.7MB

  • memory/4608-144-0x0000000074A20000-0x0000000074FD1000-memory.dmp

    Filesize

    5.7MB

  • memory/4700-136-0x0000000074A20000-0x0000000074FD1000-memory.dmp

    Filesize

    5.7MB

  • memory/4700-134-0x0000000000400000-0x000000000044E000-memory.dmp

    Filesize

    312KB

  • memory/4700-146-0x0000000074A20000-0x0000000074FD1000-memory.dmp

    Filesize

    5.7MB

  • memory/4700-148-0x0000000074A20000-0x0000000074FD1000-memory.dmp

    Filesize

    5.7MB