cryptbot | 06cf7c7c1a2d8f8647c977803466fd5b3a39dded0312fb23575eeacfaeaf07d6

General

Target
b9d0d135d4feddc5dbda11c5aa4cc586.exe
Size 1.6MB
Sample210624-e6t6fl1dnx
SHA256 06cf7c7c1a2d8f8647c977803466fd5b3a39dded0312fb23575eeacfaeaf07d6
MD5 b9d0d135d4feddc5dbda11c5aa4cc586
SHA1 02da0f0321e163cbabcbf3935204352b6a7de36d
SHA512 f776271b724fed807e54435878a921ed820217ff796d04c1f84afdd6e756b987275c40b0c12c07ba6fea397909b9048ed03e06a4b6dda53155b6a59229357f37
MD5 SHA1 SHA512

Score

10^/10

cryptbot discovery spyware stealer

Malware Config

Signatures

CryptBot
A C++ stealer distributed widely in bundle with other software.
spyware stealer cryptbot

Executes dropped EXE 2 IoCs

pid	Process
2176	Dir.exe.com
200	Dir.exe.com

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
spyware

Data from Local System
T1005

Credentials in Files
T1081
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	Dir.exe.com
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	Dir.exe.com

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
3196	timeout.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
744	PING.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
200	Dir.exe.com
200	Dir.exe.com

Suspicious use of WriteProcessMemory 24 IoCs

description	pid	Process	procid_target
PID 4012 wrote to memory of 2212	4012	b9d0d135d4feddc5dbda11c5aa4cc586.exe	75
PID 4012 wrote to memory of 2212	4012	b9d0d135d4feddc5dbda11c5aa4cc586.exe	75
PID 4012 wrote to memory of 2212	4012	b9d0d135d4feddc5dbda11c5aa4cc586.exe	75
PID 2212 wrote to memory of 2724	2212	cmd.exe	77
PID 2212 wrote to memory of 2724	2212	cmd.exe	77
PID 2212 wrote to memory of 2724	2212	cmd.exe	77
PID 2724 wrote to memory of 1680	2724	cmd.exe	79
PID 2724 wrote to memory of 1680	2724	cmd.exe	79
PID 2724 wrote to memory of 1680	2724	cmd.exe	79
PID 2724 wrote to memory of 2176	2724	cmd.exe	80
PID 2724 wrote to memory of 2176	2724	cmd.exe	80
PID 2724 wrote to memory of 2176	2724	cmd.exe	80
PID 2724 wrote to memory of 744	2724	cmd.exe	81
PID 2724 wrote to memory of 744	2724	cmd.exe	81
PID 2724 wrote to memory of 744	2724	cmd.exe	81
PID 2176 wrote to memory of 200	2176	Dir.exe.com	82
PID 2176 wrote to memory of 200	2176	Dir.exe.com	82
PID 2176 wrote to memory of 200	2176	Dir.exe.com	82
PID 200 wrote to memory of 1788	200	Dir.exe.com	86
PID 200 wrote to memory of 1788	200	Dir.exe.com	86
PID 200 wrote to memory of 1788	200	Dir.exe.com	86
PID 1788 wrote to memory of 3196	1788	cmd.exe	88
PID 1788 wrote to memory of 3196	1788	cmd.exe	88
PID 1788 wrote to memory of 3196	1788	cmd.exe	88

C:\Users\Admin\AppData\Local\Temp\b9d0d135d4feddc5dbda11c5aa4cc586.exe
"C:\Users\Admin\AppData\Local\Temp\b9d0d135d4feddc5dbda11c5aa4cc586.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:4012
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c cmd < Mostra.jar
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2212
- - C:\Windows\SysWOW64\cmd.exe
    cmd
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2724
  - - C:\Windows\SysWOW64\findstr.exe
      findstr /V /R "^MvfbkfITdzmqvzpcDFGyNcZWzrEfTQhrBeBvmkWJSEqlaWEzJGeiLmJdvatoLzZAucnxSMVaJXjocOEvmlFjOyaealZiuNYmEAtXnpBWLKnOjBV$" Hai.jar
      4⤵
      PID:1680
  - - C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\Dir.exe.com
      Dir.exe.com v
      4⤵
      Executes dropped EXE
      Suspicious use of WriteProcessMemory
      PID:2176
    - - C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\Dir.exe.com
        
        C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\Dir.exe.com v
        5⤵
        Executes dropped EXE
        Checks processor information in registry
        Suspicious use of FindShellTrayWindow
        Suspicious use of WriteProcessMemory
        
        PID:200
      - C:\Windows\SysWOW64\cmd.exe
        
        "C:\Windows\system32\cmd.exe" /c rd /s /q C:\Users\Admin\AppData\Local\Temp\HsnIWywohpE & timeout 3 & del /f /q "C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\Dir.exe.com"
        6⤵
        Suspicious use of WriteProcessMemory
        
        PID:1788
        
        C:\Windows\SysWOW64\timeout.exe
        
        timeout 3
        7⤵
        Delays execution with timeout.exe
        
        PID:3196
  - - C:\Windows\SysWOW64\PING.EXE
      ping 127.0.0.1 -n 30
      4⤵
      Runs ping.exe
      PID:744