Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows10_x64
  • resource
    win10v20210408
  • submitted
    04-10-2021 08:02

General

  • Target

    5bdc764598795f4afcb70f6ff95f29114f61ea24a1d836838125c08268e13de9.exe

  • Size

    12KB

  • MD5

    2cb032be3ffbf1a86e75669f6ff3e088

  • SHA1

    bd801dff881983fad20212b5ee5cb7cc65845bf5

  • SHA256

    5bdc764598795f4afcb70f6ff95f29114f61ea24a1d836838125c08268e13de9

  • SHA512

    1d0cae94138772ffb87823012e88631ae531720aa0225e30cf298ed0b2326c17c41c64edd9002026eef552a91664edcfcce69b0d3480e44e21b95e7fc7158726

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
  • Suspicious behavior: EnumeratesProcesses 7 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 19 IoCs
  • System policy modification 1 TTPs 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5bdc764598795f4afcb70f6ff95f29114f61ea24a1d836838125c08268e13de9.exe
    "C:\Users\Admin\AppData\Local\Temp\5bdc764598795f4afcb70f6ff95f29114f61ea24a1d836838125c08268e13de9.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1400
    • C:\Users\Admin\AppData\Local\Temp\5bdc764598795f4afcb70f6ff95f29114f61ea24a1d836838125c08268e13de9.exe
      C:\Users\Admin\AppData\Local\Temp\5bdc764598795f4afcb70f6ff95f29114f61ea24a1d836838125c08268e13de9.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:3224
      • C:\Program Files (x86)\Internet Explorer\iexplore.exe
        C:\Users\Admin\AppData\Local\Temp\5bdc764598795f4afcb70f6ff95f29114f61ea24a1d836838125c08268e13de9.exe
        3⤵
        • Adds policy Run key to start application
        • Adds Run key to start application
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:4092
        • C:\Windows\SysWOW64\notepad.exe
          notepad.exe
          4⤵
          • Deletes itself
          PID:4064

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/1400-114-0x0000000000B50000-0x0000000000B51000-memory.dmp

    Filesize

    4KB

  • memory/1400-116-0x0000000005600000-0x0000000005601000-memory.dmp

    Filesize

    4KB

  • memory/1400-117-0x0000000006250000-0x0000000006306000-memory.dmp

    Filesize

    728KB

  • memory/1400-118-0x0000000006490000-0x00000000064C0000-memory.dmp

    Filesize

    192KB

  • memory/3224-119-0x0000000000400000-0x000000000042C000-memory.dmp

    Filesize

    176KB

  • memory/3224-120-0x00000000004010B8-mapping.dmp

  • memory/3224-123-0x0000000000400000-0x000000000042C000-memory.dmp

    Filesize

    176KB

  • memory/4064-132-0x0000000000000000-mapping.dmp

  • memory/4092-124-0x0000000000400000-0x0000000000443000-memory.dmp

    Filesize

    268KB

  • memory/4092-125-0x0000000000401364-mapping.dmp

  • memory/4092-128-0x0000000003310000-0x0000000003463000-memory.dmp

    Filesize

    1.3MB

  • memory/4092-129-0x0000000003311000-0x000000000340D000-memory.dmp

    Filesize

    1008KB