Analysis

  • max time kernel
    136s
  • max time network
    147s
  • platform
    windows10_x64
  • resource
    win10v20210410
  • submitted
    13-07-2021 13:05

General

  • Target

    704ce624d4906a3cf343562b90249b58.exe

  • Size

    759KB

  • MD5

    704ce624d4906a3cf343562b90249b58

  • SHA1

    c007c6fb7c85795c2cdf5b2171392dedf72a5c9e

  • SHA256

    59d18f1afca7fa22d68455d412c29949993c21edfb3658091bdad62093e0f818

  • SHA512

    d3c285ce095cb72dc4fb7de298bc59235ed727bb99fbe0c0eea7f4aea53b4270d707ae164866dc18eef268375b3f683e7506f3582210b59d0e1fdf6aac8e1f08

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 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs
  • System policy modification 1 TTPs 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\704ce624d4906a3cf343562b90249b58.exe
    "C:\Users\Admin\AppData\Local\Temp\704ce624d4906a3cf343562b90249b58.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3908
    • C:\Users\Admin\AppData\Local\Temp\704ce624d4906a3cf343562b90249b58.exe
      C:\Users\Admin\AppData\Local\Temp\704ce624d4906a3cf343562b90249b58.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:3304
      • C:\Program Files (x86)\Internet Explorer\iexplore.exe
        C:\Users\Admin\AppData\Local\Temp\704ce624d4906a3cf343562b90249b58.exe
        3⤵
        • Adds policy Run key to start application
        • Adds Run key to start application
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        PID:2064

Network

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Registry Run Keys / Startup Folder

2
T1060

Privilege Escalation

Bypass User Account Control

1
T1088

Defense Evasion

Bypass User Account Control

1
T1088

Disabling Security Tools

3
T1089

Modify Registry

6
T1112

Discovery

System Information Discovery

1
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/2064-138-0x00000000035B1000-0x00000000036AD000-memory.dmp
    Filesize

    1008KB

  • memory/2064-137-0x00000000035B0000-0x0000000003703000-memory.dmp
    Filesize

    1.3MB

  • memory/2064-132-0x0000000000400000-0x0000000000444000-memory.dmp
    Filesize

    272KB

  • memory/2064-134-0x0000000000401364-mapping.dmp
  • memory/3304-128-0x0000000000400000-0x000000000042C000-memory.dmp
    Filesize

    176KB

  • memory/3304-133-0x0000000000400000-0x000000000042C000-memory.dmp
    Filesize

    176KB

  • memory/3304-129-0x00000000004010B8-mapping.dmp
  • memory/3908-119-0x0000000004DD0000-0x0000000004E62000-memory.dmp
    Filesize

    584KB

  • memory/3908-127-0x0000000007420000-0x0000000007487000-memory.dmp
    Filesize

    412KB

  • memory/3908-122-0x0000000007020000-0x0000000007021000-memory.dmp
    Filesize

    4KB

  • memory/3908-121-0x0000000006F10000-0x0000000006F11000-memory.dmp
    Filesize

    4KB

  • memory/3908-120-0x0000000006E30000-0x0000000006E8F000-memory.dmp
    Filesize

    380KB

  • memory/3908-114-0x0000000000540000-0x0000000000541000-memory.dmp
    Filesize

    4KB

  • memory/3908-118-0x0000000004E30000-0x0000000004E31000-memory.dmp
    Filesize

    4KB

  • memory/3908-117-0x0000000004EC0000-0x0000000004EC1000-memory.dmp
    Filesize

    4KB

  • memory/3908-116-0x00000000053C0000-0x00000000053C1000-memory.dmp
    Filesize

    4KB