Analysis

  • max time kernel
    144s
  • max time network
    149s
  • platform
    windows7_x64
  • resource
    win7v20210410
  • submitted
    13-07-2021 14:06

General

  • Target

    80099d016219e9682b1e217586f5cad1.exe

  • Size

    735KB

  • MD5

    80099d016219e9682b1e217586f5cad1

  • SHA1

    1628b91051a35e7cb70fe58e2b6e9ac135e1815c

  • SHA256

    d7f2fddb43eb63f9246f0a4535dfcca6da2817592455d7eceaacde666cf1aaae

  • SHA512

    82faf680912e72f2e1b25288be9f13f1722be79f5cf4c04c46342f02a85afb2e76f1bec8f4beb729d96c802fe8b0b205ac4f133331eafccc07a4a91a18edb649

Malware Config

Extracted

Family

xpertrat

Version

3.1.9

Botnet

BXK

C2

ioxg.ix.tc:4000

Mutex

R4W8O5A3-P0G7-Q7U5-H114-L7S6L4U0I6I6

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
  • 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 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 26 IoCs
  • System policy modification 1 TTPs 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\80099d016219e9682b1e217586f5cad1.exe
    "C:\Users\Admin\AppData\Local\Temp\80099d016219e9682b1e217586f5cad1.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2004
    • C:\Users\Admin\AppData\Local\Temp\80099d016219e9682b1e217586f5cad1.exe
      C:\Users\Admin\AppData\Local\Temp\80099d016219e9682b1e217586f5cad1.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:1084
      • C:\Program Files (x86)\Internet Explorer\iexplore.exe
        C:\Users\Admin\AppData\Local\Temp\80099d016219e9682b1e217586f5cad1.exe
        3⤵
          PID:772
        • C:\Program Files (x86)\Internet Explorer\iexplore.exe
          C:\Users\Admin\AppData\Local\Temp\80099d016219e9682b1e217586f5cad1.exe
          3⤵
          • Adds policy Run key to start application
          • Adds Run key to start application
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          PID:296

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • memory/296-77-0x0000000000401364-mapping.dmp

    • memory/296-78-0x0000000000870000-0x00000000009C3000-memory.dmp

      Filesize

      1.3MB

    • memory/296-81-0x00000000765F1000-0x00000000765F3000-memory.dmp

      Filesize

      8KB

    • memory/772-74-0x0000000000400000-0x0000000000444000-memory.dmp

      Filesize

      272KB

    • memory/772-75-0x0000000000401364-mapping.dmp

    • memory/1084-70-0x00000000004010B8-mapping.dmp

    • memory/1084-69-0x0000000000400000-0x000000000042C000-memory.dmp

      Filesize

      176KB

    • memory/2004-60-0x0000000000300000-0x0000000000301000-memory.dmp

      Filesize

      4KB

    • memory/2004-62-0x0000000004F40000-0x0000000004F41000-memory.dmp

      Filesize

      4KB

    • memory/2004-63-0x0000000000710000-0x000000000076B000-memory.dmp

      Filesize

      364KB

    • memory/2004-68-0x0000000005C20000-0x0000000005C7E000-memory.dmp

      Filesize

      376KB

    • memory/2004-73-0x0000000004F45000-0x0000000004F56000-memory.dmp

      Filesize

      68KB