Analysis

  • max time kernel
    147s
  • max time network
    151s
  • platform
    windows7_x64
  • resource
    win7-20230831-en
  • resource tags

    arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
  • submitted
    12-09-2023 01:42

General

  • Target

    Stub.exe

  • Size

    3.8MB

  • MD5

    5d422b017137a0060e7de3b1ddff3fbb

  • SHA1

    fbc8138cc80dd477ec6bd45ade7bdd27de251260

  • SHA256

    c733abcd9c2a5c1734242bc3238dd44e9aaf7e2c01878bebe2751c1b99f9a658

  • SHA512

    b5794b69eb87e6e3f0fe19dfe0734a94fb342e27dc3e2936abd052d7cf8f82b672d28a250378b15c3631be6ce60a21643573d372a12917d5cbfa941f17fd4bdc

  • SSDEEP

    98304:d77Pmq33rE/JDLPWZADUGer7B6iY74M/7mlwXVZ4FB:5+R/eZADUXR

Malware Config

Extracted

Family

bitrat

Version

1.38

C2

smgqnt3eixxksasu.xyz:1234

Attributes
  • communication_password

    30afda4853ef5b1bc36463ba95d84247

  • tor_process

    tor

Signatures

  • BitRAT

    BitRAT is a remote access tool written in C++ and uses leaked source code from other families.

  • Downloads MZ/PE file
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 4 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 6 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 5 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 20 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Stub.exe
    "C:\Users\Admin\AppData\Local\Temp\Stub.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2212
    • C:\Users\Admin\AppData\Local\Temp\Ydv4VjsI9owcXnKz.exe
      "C:\Users\Admin\AppData\Local\Temp\Ydv4VjsI9owcXnKz.exe"
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2656
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
        C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
        3⤵
          PID:2132
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
          C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
          3⤵
          • Suspicious use of NtSetInformationThreadHideFromDebugger
          • Suspicious use of AdjustPrivilegeToken
          PID:1980

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\Ydv4VjsI9owcXnKz.exe
      Filesize

      6.1MB

      MD5

      fab73af287c1c2d2c9f7eb56ae418c2a

      SHA1

      b9afbf362fd3a04290b37a2abafece67fba21b1b

      SHA256

      33d1fbfef24cf1945248cfdc35c9338aec58774838d2c8b16d7609e8badd60a3

      SHA512

      c5a5803b097509967ff09a401d4f8d055a837c66f4bb257576513519233b40890bb8663ce08eddead348dacdace3d1212e3522480fbd6fe3a5e909970f442bab

    • C:\Users\Admin\AppData\Local\Temp\Ydv4VjsI9owcXnKz.exe
      Filesize

      6.1MB

      MD5

      fab73af287c1c2d2c9f7eb56ae418c2a

      SHA1

      b9afbf362fd3a04290b37a2abafece67fba21b1b

      SHA256

      33d1fbfef24cf1945248cfdc35c9338aec58774838d2c8b16d7609e8badd60a3

      SHA512

      c5a5803b097509967ff09a401d4f8d055a837c66f4bb257576513519233b40890bb8663ce08eddead348dacdace3d1212e3522480fbd6fe3a5e909970f442bab

    • C:\Users\Admin\AppData\Local\Temp\Ydv4VjsI9owcXnKz.exe
      Filesize

      6.1MB

      MD5

      fab73af287c1c2d2c9f7eb56ae418c2a

      SHA1

      b9afbf362fd3a04290b37a2abafece67fba21b1b

      SHA256

      33d1fbfef24cf1945248cfdc35c9338aec58774838d2c8b16d7609e8badd60a3

      SHA512

      c5a5803b097509967ff09a401d4f8d055a837c66f4bb257576513519233b40890bb8663ce08eddead348dacdace3d1212e3522480fbd6fe3a5e909970f442bab

    • \Users\Admin\AppData\Local\Temp\Ydv4VjsI9owcXnKz.exe
      Filesize

      6.1MB

      MD5

      fab73af287c1c2d2c9f7eb56ae418c2a

      SHA1

      b9afbf362fd3a04290b37a2abafece67fba21b1b

      SHA256

      33d1fbfef24cf1945248cfdc35c9338aec58774838d2c8b16d7609e8badd60a3

      SHA512

      c5a5803b097509967ff09a401d4f8d055a837c66f4bb257576513519233b40890bb8663ce08eddead348dacdace3d1212e3522480fbd6fe3a5e909970f442bab

    • \Users\Admin\AppData\Local\Temp\Ydv4VjsI9owcXnKz.exe
      Filesize

      6.1MB

      MD5

      fab73af287c1c2d2c9f7eb56ae418c2a

      SHA1

      b9afbf362fd3a04290b37a2abafece67fba21b1b

      SHA256

      33d1fbfef24cf1945248cfdc35c9338aec58774838d2c8b16d7609e8badd60a3

      SHA512

      c5a5803b097509967ff09a401d4f8d055a837c66f4bb257576513519233b40890bb8663ce08eddead348dacdace3d1212e3522480fbd6fe3a5e909970f442bab

    • \Users\Admin\AppData\Local\Temp\Ydv4VjsI9owcXnKz.exe
      Filesize

      6.1MB

      MD5

      fab73af287c1c2d2c9f7eb56ae418c2a

      SHA1

      b9afbf362fd3a04290b37a2abafece67fba21b1b

      SHA256

      33d1fbfef24cf1945248cfdc35c9338aec58774838d2c8b16d7609e8badd60a3

      SHA512

      c5a5803b097509967ff09a401d4f8d055a837c66f4bb257576513519233b40890bb8663ce08eddead348dacdace3d1212e3522480fbd6fe3a5e909970f442bab

    • \Users\Admin\AppData\Local\Temp\Ydv4VjsI9owcXnKz.exe
      Filesize

      6.1MB

      MD5

      fab73af287c1c2d2c9f7eb56ae418c2a

      SHA1

      b9afbf362fd3a04290b37a2abafece67fba21b1b

      SHA256

      33d1fbfef24cf1945248cfdc35c9338aec58774838d2c8b16d7609e8badd60a3

      SHA512

      c5a5803b097509967ff09a401d4f8d055a837c66f4bb257576513519233b40890bb8663ce08eddead348dacdace3d1212e3522480fbd6fe3a5e909970f442bab

    • memory/1980-39-0x0000000000400000-0x00000000007CE000-memory.dmp
      Filesize

      3.8MB

    • memory/1980-41-0x0000000000400000-0x00000000007CE000-memory.dmp
      Filesize

      3.8MB

    • memory/1980-50-0x0000000000400000-0x00000000007CE000-memory.dmp
      Filesize

      3.8MB

    • memory/1980-48-0x0000000000400000-0x00000000007CE000-memory.dmp
      Filesize

      3.8MB

    • memory/1980-44-0x0000000000400000-0x00000000007CE000-memory.dmp
      Filesize

      3.8MB

    • memory/1980-42-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
      Filesize

      4KB

    • memory/1980-40-0x0000000000400000-0x00000000007CE000-memory.dmp
      Filesize

      3.8MB

    • memory/1980-38-0x0000000000400000-0x00000000007CE000-memory.dmp
      Filesize

      3.8MB

    • memory/1980-36-0x0000000000400000-0x00000000007CE000-memory.dmp
      Filesize

      3.8MB

    • memory/1980-34-0x0000000000400000-0x00000000007CE000-memory.dmp
      Filesize

      3.8MB

    • memory/1980-32-0x0000000000400000-0x00000000007CE000-memory.dmp
      Filesize

      3.8MB

    • memory/2212-0-0x0000000000400000-0x00000000007CE000-memory.dmp
      Filesize

      3.8MB

    • memory/2212-3-0x00000000001C0000-0x00000000001CA000-memory.dmp
      Filesize

      40KB

    • memory/2212-1-0x00000000001C0000-0x00000000001CA000-memory.dmp
      Filesize

      40KB

    • memory/2212-2-0x00000000001C0000-0x00000000001CA000-memory.dmp
      Filesize

      40KB

    • memory/2212-4-0x00000000001C0000-0x00000000001CA000-memory.dmp
      Filesize

      40KB

    • memory/2656-27-0x0000000005470000-0x0000000005664000-memory.dmp
      Filesize

      2.0MB

    • memory/2656-25-0x0000000004D70000-0x0000000004F76000-memory.dmp
      Filesize

      2.0MB

    • memory/2656-24-0x0000000000B90000-0x00000000011B4000-memory.dmp
      Filesize

      6.1MB

    • memory/2656-26-0x0000000000720000-0x0000000000760000-memory.dmp
      Filesize

      256KB

    • memory/2656-23-0x0000000072ED0000-0x00000000735BE000-memory.dmp
      Filesize

      6.9MB

    • memory/2656-29-0x0000000072ED0000-0x00000000735BE000-memory.dmp
      Filesize

      6.9MB

    • memory/2656-46-0x0000000072ED0000-0x00000000735BE000-memory.dmp
      Filesize

      6.9MB

    • memory/2656-28-0x0000000000830000-0x000000000087C000-memory.dmp
      Filesize

      304KB

    • memory/2656-30-0x0000000000720000-0x0000000000760000-memory.dmp
      Filesize

      256KB