Analysis

  • max time kernel
    146s
  • max time network
    152s
  • platform
    windows7_x64
  • resource
    win7-20230831-en
  • resource tags

    arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
  • submitted
    12-09-2023 01:43

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 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 5 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 16 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:2288
    • 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:2676
      • 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:1956

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/1956-38-0x0000000000400000-0x00000000007CE000-memory.dmp
    Filesize

    3.8MB

  • memory/1956-39-0x0000000000400000-0x00000000007CE000-memory.dmp
    Filesize

    3.8MB

  • memory/1956-49-0x0000000000400000-0x00000000007CE000-memory.dmp
    Filesize

    3.8MB

  • memory/1956-48-0x0000000000400000-0x00000000007CE000-memory.dmp
    Filesize

    3.8MB

  • memory/1956-47-0x0000000000400000-0x00000000007CE000-memory.dmp
    Filesize

    3.8MB

  • memory/1956-43-0x0000000000400000-0x00000000007CE000-memory.dmp
    Filesize

    3.8MB

  • memory/1956-41-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
    Filesize

    4KB

  • memory/1956-40-0x0000000000400000-0x00000000007CE000-memory.dmp
    Filesize

    3.8MB

  • memory/1956-36-0x0000000000400000-0x00000000007CE000-memory.dmp
    Filesize

    3.8MB

  • memory/1956-37-0x0000000000400000-0x00000000007CE000-memory.dmp
    Filesize

    3.8MB

  • memory/1956-34-0x0000000000400000-0x00000000007CE000-memory.dmp
    Filesize

    3.8MB

  • memory/1956-32-0x0000000000400000-0x00000000007CE000-memory.dmp
    Filesize

    3.8MB

  • memory/2288-0-0x0000000000400000-0x00000000007CE000-memory.dmp
    Filesize

    3.8MB

  • memory/2288-3-0x00000000002C0000-0x00000000002CA000-memory.dmp
    Filesize

    40KB

  • memory/2288-2-0x00000000002C0000-0x00000000002CA000-memory.dmp
    Filesize

    40KB

  • memory/2288-1-0x00000000002C0000-0x00000000002CA000-memory.dmp
    Filesize

    40KB

  • memory/2288-4-0x00000000002C0000-0x00000000002CA000-memory.dmp
    Filesize

    40KB

  • memory/2676-25-0x0000000004F70000-0x0000000005176000-memory.dmp
    Filesize

    2.0MB

  • memory/2676-30-0x0000000004940000-0x0000000004980000-memory.dmp
    Filesize

    256KB

  • memory/2676-26-0x0000000004940000-0x0000000004980000-memory.dmp
    Filesize

    256KB

  • memory/2676-24-0x0000000073890000-0x0000000073F7E000-memory.dmp
    Filesize

    6.9MB

  • memory/2676-23-0x0000000000DB0000-0x00000000013D4000-memory.dmp
    Filesize

    6.1MB

  • memory/2676-45-0x0000000073890000-0x0000000073F7E000-memory.dmp
    Filesize

    6.9MB

  • memory/2676-27-0x0000000005570000-0x0000000005764000-memory.dmp
    Filesize

    2.0MB

  • memory/2676-28-0x00000000003E0000-0x000000000042C000-memory.dmp
    Filesize

    304KB

  • memory/2676-29-0x0000000073890000-0x0000000073F7E000-memory.dmp
    Filesize

    6.9MB