Analysis

  • max time kernel
    106s
  • max time network
    148s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25-01-2023 10:51

General

  • Target

    cded11cb2f89ab0caafaa53d02cdd39682aab2fa82011565a5a5857fdf9bb145.exe

  • Size

    1MB

  • MD5

    db77cacff97989bb1c1d64ddcad046da

  • SHA1

    7c38eff8b0175f0cfef7a31112222ed0e3c144b1

  • SHA256

    cded11cb2f89ab0caafaa53d02cdd39682aab2fa82011565a5a5857fdf9bb145

  • SHA512

    38de264a721bc7a00b0914bb4ce41b5969092e5398630e9c7bca4a7a91e841405b91e05f7aff442b9647c35f77fc6e8b8b001c0b3053d647bb9ea2d87d52a221

  • SSDEEP

    24576:UDWHSb4N70rKKUsu0Wl53iW9T5z/WOcQ2cZFFIuLI38SYI4O2wW0B:v84U8V/JcQDPL46I4ODtB

Score
7/10

Malware Config

Signatures

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Loads dropped DLL 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\cded11cb2f89ab0caafaa53d02cdd39682aab2fa82011565a5a5857fdf9bb145.exe
    "C:\Users\Admin\AppData\Local\Temp\cded11cb2f89ab0caafaa53d02cdd39682aab2fa82011565a5a5857fdf9bb145.exe"
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:4248
    • C:\Windows\SysWOW64\control.exe
      "C:\Windows\System32\control.exe" .\U_U5.B1
      • Suspicious use of WriteProcessMemory
      PID:4268
      • C:\Windows\SysWOW64\rundll32.exe
        "C:\Windows\system32\rundll32.exe" Shell32.dll,Control_RunDLL .\U_U5.B1
        • Loads dropped DLL
        • Suspicious use of WriteProcessMemory
        PID:4240
        • C:\Windows\system32\RunDll32.exe
          C:\Windows\system32\RunDll32.exe Shell32.dll,Control_RunDLL .\U_U5.B1
          • Suspicious use of WriteProcessMemory
          PID:3756
          • C:\Windows\SysWOW64\rundll32.exe
            "C:\Windows\SysWOW64\rundll32.exe" "C:\Windows\SysWOW64\shell32.dll",#44 .\U_U5.B1
            • Loads dropped DLL
            PID:3656

Network

MITRE ATT&CK Matrix ATT&CK v6

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\U_U5.B1
    Filesize

    1MB

    MD5

    cc1e2e03ad0761d2f95842b6d20854ad

    SHA1

    7d9aed0eee2cb5fbec7b6a4bfc064e22d855d2cf

    SHA256

    042f8e826dc5956f74d1b35c0b7cd4c0a11ae417077af4cd8c55e030cbce288a

    SHA512

    3f9ee45e284450572906c6e835a54dbcf341329c2852e6e476d408b6fbb49c7f59aa9ed746803f195df058548becb1a311940614f351fbeddd6a175228643d10

  • C:\Users\Admin\AppData\Local\Temp\u_u5.b1
    Filesize

    1MB

    MD5

    cc1e2e03ad0761d2f95842b6d20854ad

    SHA1

    7d9aed0eee2cb5fbec7b6a4bfc064e22d855d2cf

    SHA256

    042f8e826dc5956f74d1b35c0b7cd4c0a11ae417077af4cd8c55e030cbce288a

    SHA512

    3f9ee45e284450572906c6e835a54dbcf341329c2852e6e476d408b6fbb49c7f59aa9ed746803f195df058548becb1a311940614f351fbeddd6a175228643d10

  • C:\Users\Admin\AppData\Local\Temp\u_u5.b1
    Filesize

    1MB

    MD5

    cc1e2e03ad0761d2f95842b6d20854ad

    SHA1

    7d9aed0eee2cb5fbec7b6a4bfc064e22d855d2cf

    SHA256

    042f8e826dc5956f74d1b35c0b7cd4c0a11ae417077af4cd8c55e030cbce288a

    SHA512

    3f9ee45e284450572906c6e835a54dbcf341329c2852e6e476d408b6fbb49c7f59aa9ed746803f195df058548becb1a311940614f351fbeddd6a175228643d10

  • memory/3656-145-0x0000000000000000-mapping.dmp
  • memory/3656-153-0x0000000002BD0000-0x0000000002CA0000-memory.dmp
    Filesize

    832KB

  • memory/3656-151-0x0000000002AE0000-0x0000000002BC7000-memory.dmp
    Filesize

    924KB

  • memory/3656-150-0x0000000000B70000-0x0000000000B76000-memory.dmp
    Filesize

    24KB

  • memory/3756-144-0x0000000000000000-mapping.dmp
  • memory/4240-142-0x0000000002F20000-0x0000000002FF0000-memory.dmp
    Filesize

    832KB

  • memory/4240-141-0x0000000002F20000-0x0000000002FF0000-memory.dmp
    Filesize

    832KB

  • memory/4240-140-0x0000000002E30000-0x0000000002F17000-memory.dmp
    Filesize

    924KB

  • memory/4240-139-0x00000000028A0000-0x00000000028A6000-memory.dmp
    Filesize

    24KB

  • memory/4240-136-0x0000000000400000-0x0000000000565000-memory.dmp
    Filesize

    1MB

  • memory/4240-133-0x0000000000000000-mapping.dmp
  • memory/4268-132-0x0000000000000000-mapping.dmp