Analysis

  • max time kernel
    141s
  • max time network
    152s
  • platform
    windows10_x64
  • resource
    win10v20210408
  • 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 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\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:672
    • 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:2812
      • 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:1604

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/672-127-0x0000000007510000-0x000000000756E000-memory.dmp

    Filesize

    376KB

  • memory/672-121-0x0000000006B10000-0x0000000006B11000-memory.dmp

    Filesize

    4KB

  • memory/672-117-0x0000000004FC0000-0x0000000004FC1000-memory.dmp

    Filesize

    4KB

  • memory/672-118-0x0000000004FC0000-0x00000000054BE000-memory.dmp

    Filesize

    5.0MB

  • memory/672-114-0x0000000000650000-0x0000000000651000-memory.dmp

    Filesize

    4KB

  • memory/672-120-0x0000000006A30000-0x0000000006A8B000-memory.dmp

    Filesize

    364KB

  • memory/672-116-0x00000000054C0000-0x00000000054C1000-memory.dmp

    Filesize

    4KB

  • memory/672-122-0x0000000006C20000-0x0000000006C21000-memory.dmp

    Filesize

    4KB

  • memory/672-119-0x00000000050A0000-0x00000000050A1000-memory.dmp

    Filesize

    4KB

  • memory/1604-133-0x0000000000400000-0x0000000000444000-memory.dmp

    Filesize

    272KB

  • memory/1604-134-0x0000000000401364-mapping.dmp

  • memory/1604-137-0x0000000003470000-0x00000000035C3000-memory.dmp

    Filesize

    1.3MB

  • memory/1604-138-0x0000000003471000-0x000000000356D000-memory.dmp

    Filesize

    1008KB

  • memory/2812-129-0x00000000004010B8-mapping.dmp

  • memory/2812-128-0x0000000000400000-0x000000000042C000-memory.dmp

    Filesize

    176KB

  • memory/2812-132-0x0000000000400000-0x000000000042C000-memory.dmp

    Filesize

    176KB