Analysis

  • max time kernel
    208s
  • max time network
    211s
  • platform
    windows7_x64
  • resource
    win7-en-20210920
  • submitted
    24-09-2021 01:55

General

  • Target

    fed0dec9c86e3f1057e7cf1c7eb22c8d528da1f6a966de89587b41f7b78e2f98.bin.exe

  • Size

    358KB

  • MD5

    d952cb0acf14545d0e6da5509db9088d

  • SHA1

    9e4c5b31c821cc46f8eba61d65442f0bdbe67b98

  • SHA256

    fed0dec9c86e3f1057e7cf1c7eb22c8d528da1f6a966de89587b41f7b78e2f98

  • SHA512

    e66869cc859af82d4ad9db0c877d949905e3f28876e1022f434083e6f26492e3edac72624ce3143ca85446f4bce7ed208e41f846c5bcb13af7343047c7df8ebc

Malware Config

Extracted

Family

xpertrat

Version

3.0.10

Botnet

Test

C2

kapasky-antivirus.firewall-gateway.net:4000

Mutex

L3Q7J4T2-J8A6-L6O4-W4G3-U5J7D0W2W5F0

Signatures

  • UAC bypass 3 TTPs
  • Windows security bypass 2 TTPs
  • XpertRAT

    XpertRAT is a remote access trojan with various capabilities.

  • XpertRAT Core Payload 2 IoCs
  • Adds policy Run key to start application 2 TTPs 2 IoCs
  • Deletes itself 1 IoCs
  • Windows security modification 2 TTPs 1 IoCs
  • Adds Run key to start application 2 TTPs 4 IoCs
  • Checks whether UAC is enabled 1 TTPs 1 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 11 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 42 IoCs
  • System policy modification 1 TTPs 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\fed0dec9c86e3f1057e7cf1c7eb22c8d528da1f6a966de89587b41f7b78e2f98.bin.exe
    "C:\Users\Admin\AppData\Local\Temp\fed0dec9c86e3f1057e7cf1c7eb22c8d528da1f6a966de89587b41f7b78e2f98.bin.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:2008
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Test-Connection 8.8.8.8, 8.8.4.4, time.google.com
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1452
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Test-Connection 8.8.8.8, 8.8.4.4, time.google.com
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1576
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Test-Connection 8.8.8.8, 8.8.4.4, time.google.com
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1940
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Test-Connection 8.8.8.8, 8.8.4.4, time.google.com
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1844
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Test-Connection 8.8.8.8, 8.8.4.4, time.google.com
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      PID:1924
    • C:\Users\Admin\AppData\Local\Temp\fed0dec9c86e3f1057e7cf1c7eb22c8d528da1f6a966de89587b41f7b78e2f98.bin.exe
      C:\Users\Admin\AppData\Local\Temp\fed0dec9c86e3f1057e7cf1c7eb22c8d528da1f6a966de89587b41f7b78e2f98.bin.exe
      2⤵
      • Windows security modification
      • Checks whether UAC is enabled
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      • System policy modification
      PID:1508
      • C:\Program Files (x86)\Internet Explorer\iexplore.exe
        C:\Users\Admin\AppData\Local\Temp\fed0dec9c86e3f1057e7cf1c7eb22c8d528da1f6a966de89587b41f7b78e2f98.bin.exe
        3⤵
        • Adds policy Run key to start application
        • Adds Run key to start application
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:932
        • C:\Windows\SysWOW64\notepad.exe
          notepad.exe
          4⤵
          • Deletes itself
          PID:1304

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms

    MD5

    76cd8d226492556dc0b73e1039d9fc34

    SHA1

    66fb87694d88d0619e9d1f4abda2ab3c6c6b8d52

    SHA256

    b96718f840c6cdcade3e950bc61be4d36b1e5e2f52c26ec8b1d1ceb6809eb631

    SHA512

    11370de10ebf3aaed79be1ba3a0f7102bbcf7a650e61098ae95ef60ae3b183c962defa763462a4e5de12ddeade63322c9360f528f8c458e61352ab4e61609253

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms

    MD5

    76cd8d226492556dc0b73e1039d9fc34

    SHA1

    66fb87694d88d0619e9d1f4abda2ab3c6c6b8d52

    SHA256

    b96718f840c6cdcade3e950bc61be4d36b1e5e2f52c26ec8b1d1ceb6809eb631

    SHA512

    11370de10ebf3aaed79be1ba3a0f7102bbcf7a650e61098ae95ef60ae3b183c962defa763462a4e5de12ddeade63322c9360f528f8c458e61352ab4e61609253

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms

    MD5

    76cd8d226492556dc0b73e1039d9fc34

    SHA1

    66fb87694d88d0619e9d1f4abda2ab3c6c6b8d52

    SHA256

    b96718f840c6cdcade3e950bc61be4d36b1e5e2f52c26ec8b1d1ceb6809eb631

    SHA512

    11370de10ebf3aaed79be1ba3a0f7102bbcf7a650e61098ae95ef60ae3b183c962defa763462a4e5de12ddeade63322c9360f528f8c458e61352ab4e61609253

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms

    MD5

    76cd8d226492556dc0b73e1039d9fc34

    SHA1

    66fb87694d88d0619e9d1f4abda2ab3c6c6b8d52

    SHA256

    b96718f840c6cdcade3e950bc61be4d36b1e5e2f52c26ec8b1d1ceb6809eb631

    SHA512

    11370de10ebf3aaed79be1ba3a0f7102bbcf7a650e61098ae95ef60ae3b183c962defa763462a4e5de12ddeade63322c9360f528f8c458e61352ab4e61609253

  • memory/932-82-0x00000000005B0000-0x0000000000703000-memory.dmp

    Filesize

    1.3MB

  • memory/932-81-0x0000000000401364-mapping.dmp

  • memory/932-80-0x0000000000400000-0x0000000000443000-memory.dmp

    Filesize

    268KB

  • memory/1304-85-0x0000000000000000-mapping.dmp

  • memory/1452-56-0x0000000000000000-mapping.dmp

  • memory/1452-57-0x0000000075FA1000-0x0000000075FA3000-memory.dmp

    Filesize

    8KB

  • memory/1452-58-0x00000000023E0000-0x000000000302A000-memory.dmp

    Filesize

    12.3MB

  • memory/1508-76-0x0000000000400000-0x000000000042C000-memory.dmp

    Filesize

    176KB

  • memory/1508-77-0x00000000004010B8-mapping.dmp

  • memory/1576-59-0x0000000000000000-mapping.dmp

  • memory/1844-69-0x0000000001DB1000-0x0000000001DB2000-memory.dmp

    Filesize

    4KB

  • memory/1844-70-0x0000000001DB2000-0x0000000001DB4000-memory.dmp

    Filesize

    8KB

  • memory/1844-68-0x0000000001DB0000-0x0000000001DB1000-memory.dmp

    Filesize

    4KB

  • memory/1844-65-0x0000000000000000-mapping.dmp

  • memory/1924-71-0x0000000000000000-mapping.dmp

  • memory/1940-62-0x0000000000000000-mapping.dmp

  • memory/2008-74-0x0000000001210000-0x0000000001264000-memory.dmp

    Filesize

    336KB

  • memory/2008-75-0x0000000000BD0000-0x0000000000BFA000-memory.dmp

    Filesize

    168KB

  • memory/2008-53-0x0000000001290000-0x0000000001291000-memory.dmp

    Filesize

    4KB

  • memory/2008-55-0x0000000000B30000-0x0000000000B31000-memory.dmp

    Filesize

    4KB