Malware Analysis Report

2024-10-19 02:37

Sample ID 240907-srwhysscmf
Target 039f5c692ba1c67c6e9b475738f40f4311e5e5625e4390d5e51685f6b4e548b8
SHA256 039f5c692ba1c67c6e9b475738f40f4311e5e5625e4390d5e51685f6b4e548b8
Tags
cryptbot credential_access discovery spyware stealer
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

039f5c692ba1c67c6e9b475738f40f4311e5e5625e4390d5e51685f6b4e548b8

Threat Level: Known bad

The file 039f5c692ba1c67c6e9b475738f40f4311e5e5625e4390d5e51685f6b4e548b8 was found to be: Known bad.

Malicious Activity Summary

cryptbot credential_access discovery spyware stealer

CryptBot

Credentials from Password Stores: Credentials from Web Browsers

Checks computer location settings

Executes dropped EXE

Loads dropped DLL

Reads user/profile data of web browsers

Checks installed software on the system

Unsigned PE

System Location Discovery: System Language Discovery

Enumerates physical storage devices

Suspicious use of WriteProcessMemory

Checks processor information in registry

Scheduled Task/Job: Scheduled Task

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-09-07 15:22

Signatures

Unsigned PE

Description Indicator Process Target
N/A N/A N/A N/A

Analysis: behavioral2

Detonation Overview

Submitted

2024-09-07 15:22

Reported

2024-09-07 15:24

Platform

win10v2004-20240802-en

Max time kernel

141s

Max time network

100s

Command Line

"C:\Users\Admin\AppData\Local\Temp\039f5c692ba1c67c6e9b475738f40f4311e5e5625e4390d5e51685f6b4e548b8.exe"

Signatures

CryptBot

spyware stealer cryptbot

Credentials from Password Stores: Credentials from Web Browsers

credential_access stealer

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-4182098368-2521458979-3782681353-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\039f5c692ba1c67c6e9b475738f40f4311e5e5625e4390d5e51685f6b4e548b8.exe N/A

Reads user/profile data of web browsers

spyware stealer

Checks installed software on the system

discovery

Enumerates physical storage devices

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\service123.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\schtasks.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\039f5c692ba1c67c6e9b475738f40f4311e5e5625e4390d5e51685f6b4e548b8.exe N/A

Checks processor information in registry

Description Indicator Process Target
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString C:\Users\Admin\AppData\Local\Temp\039f5c692ba1c67c6e9b475738f40f4311e5e5625e4390d5e51685f6b4e548b8.exe N/A
Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 C:\Users\Admin\AppData\Local\Temp\039f5c692ba1c67c6e9b475738f40f4311e5e5625e4390d5e51685f6b4e548b8.exe N/A

Scheduled Task/Job: Scheduled Task

persistence execution
Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\schtasks.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\039f5c692ba1c67c6e9b475738f40f4311e5e5625e4390d5e51685f6b4e548b8.exe

"C:\Users\Admin\AppData\Local\Temp\039f5c692ba1c67c6e9b475738f40f4311e5e5625e4390d5e51685f6b4e548b8.exe"

C:\Users\Admin\AppData\Local\Temp\service123.exe

"C:\Users\Admin\AppData\Local\Temp\service123.exe"

C:\Windows\SysWOW64\schtasks.exe

"C:\Windows\System32\schtasks.exe" /create /tn "ServiceData4" /tr "C:\Users\Admin\AppData\Local\Temp\/service123.exe" /st 00:01 /du 9800:59 /sc once /ri 1 /f

C:\Users\Admin\AppData\Local\Temp\service123.exe

C:\Users\Admin\AppData\Local\Temp\/service123.exe

C:\Users\Admin\AppData\Local\Temp\service123.exe

C:\Users\Admin\AppData\Local\Temp\/service123.exe

Network

Country Destination Domain Proto
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 134.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 fivev5sb.top udp
RU 195.133.48.136:80 fivev5sb.top tcp
US 8.8.8.8:53 136.48.133.195.in-addr.arpa udp
US 8.8.8.8:53 154.239.44.20.in-addr.arpa udp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 92.12.20.2.in-addr.arpa udp
US 8.8.8.8:53 97.17.167.52.in-addr.arpa udp
US 8.8.8.8:53 73.144.22.2.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp

Files

memory/2584-0-0x0000000000400000-0x0000000001069000-memory.dmp

memory/2584-1-0x0000000000400000-0x0000000001069000-memory.dmp

memory/2584-13-0x0000000000400000-0x0000000001069000-memory.dmp

memory/3184-15-0x0000000000F10000-0x0000000000F21000-memory.dmp

memory/3184-16-0x0000000075B30000-0x0000000075C6C000-memory.dmp

memory/824-19-0x0000000000F10000-0x0000000000F21000-memory.dmp

memory/5076-34-0x0000000000F10000-0x0000000000F21000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2024-09-07 15:22

Reported

2024-09-07 15:24

Platform

win7-20240903-en

Max time kernel

144s

Max time network

123s

Command Line

"C:\Users\Admin\AppData\Local\Temp\039f5c692ba1c67c6e9b475738f40f4311e5e5625e4390d5e51685f6b4e548b8.exe"

Signatures

CryptBot

spyware stealer cryptbot

Credentials from Password Stores: Credentials from Web Browsers

credential_access stealer

Reads user/profile data of web browsers

spyware stealer

Checks installed software on the system

discovery

Enumerates physical storage devices

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\039f5c692ba1c67c6e9b475738f40f4311e5e5625e4390d5e51685f6b4e548b8.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\schtasks.exe N/A

Checks processor information in registry

Description Indicator Process Target
Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 C:\Users\Admin\AppData\Local\Temp\039f5c692ba1c67c6e9b475738f40f4311e5e5625e4390d5e51685f6b4e548b8.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString C:\Users\Admin\AppData\Local\Temp\039f5c692ba1c67c6e9b475738f40f4311e5e5625e4390d5e51685f6b4e548b8.exe N/A

Scheduled Task/Job: Scheduled Task

persistence execution
Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\schtasks.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3028 wrote to memory of 2848 N/A C:\Users\Admin\AppData\Local\Temp\039f5c692ba1c67c6e9b475738f40f4311e5e5625e4390d5e51685f6b4e548b8.exe C:\Users\Admin\AppData\Local\Temp\service123.exe
PID 3028 wrote to memory of 2848 N/A C:\Users\Admin\AppData\Local\Temp\039f5c692ba1c67c6e9b475738f40f4311e5e5625e4390d5e51685f6b4e548b8.exe C:\Users\Admin\AppData\Local\Temp\service123.exe
PID 3028 wrote to memory of 2848 N/A C:\Users\Admin\AppData\Local\Temp\039f5c692ba1c67c6e9b475738f40f4311e5e5625e4390d5e51685f6b4e548b8.exe C:\Users\Admin\AppData\Local\Temp\service123.exe
PID 3028 wrote to memory of 2848 N/A C:\Users\Admin\AppData\Local\Temp\039f5c692ba1c67c6e9b475738f40f4311e5e5625e4390d5e51685f6b4e548b8.exe C:\Users\Admin\AppData\Local\Temp\service123.exe
PID 3028 wrote to memory of 2708 N/A C:\Users\Admin\AppData\Local\Temp\039f5c692ba1c67c6e9b475738f40f4311e5e5625e4390d5e51685f6b4e548b8.exe C:\Windows\SysWOW64\schtasks.exe
PID 3028 wrote to memory of 2708 N/A C:\Users\Admin\AppData\Local\Temp\039f5c692ba1c67c6e9b475738f40f4311e5e5625e4390d5e51685f6b4e548b8.exe C:\Windows\SysWOW64\schtasks.exe
PID 3028 wrote to memory of 2708 N/A C:\Users\Admin\AppData\Local\Temp\039f5c692ba1c67c6e9b475738f40f4311e5e5625e4390d5e51685f6b4e548b8.exe C:\Windows\SysWOW64\schtasks.exe
PID 3028 wrote to memory of 2708 N/A C:\Users\Admin\AppData\Local\Temp\039f5c692ba1c67c6e9b475738f40f4311e5e5625e4390d5e51685f6b4e548b8.exe C:\Windows\SysWOW64\schtasks.exe
PID 2044 wrote to memory of 2364 N/A C:\Windows\system32\taskeng.exe C:\Users\Admin\AppData\Local\Temp\service123.exe
PID 2044 wrote to memory of 2364 N/A C:\Windows\system32\taskeng.exe C:\Users\Admin\AppData\Local\Temp\service123.exe
PID 2044 wrote to memory of 2364 N/A C:\Windows\system32\taskeng.exe C:\Users\Admin\AppData\Local\Temp\service123.exe
PID 2044 wrote to memory of 2364 N/A C:\Windows\system32\taskeng.exe C:\Users\Admin\AppData\Local\Temp\service123.exe
PID 2044 wrote to memory of 532 N/A C:\Windows\system32\taskeng.exe C:\Users\Admin\AppData\Local\Temp\service123.exe
PID 2044 wrote to memory of 532 N/A C:\Windows\system32\taskeng.exe C:\Users\Admin\AppData\Local\Temp\service123.exe
PID 2044 wrote to memory of 532 N/A C:\Windows\system32\taskeng.exe C:\Users\Admin\AppData\Local\Temp\service123.exe
PID 2044 wrote to memory of 532 N/A C:\Windows\system32\taskeng.exe C:\Users\Admin\AppData\Local\Temp\service123.exe

Processes

C:\Users\Admin\AppData\Local\Temp\039f5c692ba1c67c6e9b475738f40f4311e5e5625e4390d5e51685f6b4e548b8.exe

"C:\Users\Admin\AppData\Local\Temp\039f5c692ba1c67c6e9b475738f40f4311e5e5625e4390d5e51685f6b4e548b8.exe"

C:\Users\Admin\AppData\Local\Temp\service123.exe

"C:\Users\Admin\AppData\Local\Temp\service123.exe"

C:\Windows\SysWOW64\schtasks.exe

"C:\Windows\System32\schtasks.exe" /create /tn "ServiceData4" /tr "C:\Users\Admin\AppData\Local\Temp\/service123.exe" /st 00:01 /du 9800:59 /sc once /ri 1 /f

C:\Windows\system32\taskeng.exe

taskeng.exe {611BDB41-E6F3-4406-A2C5-F9B7CCDC4BEA} S-1-5-21-2872745919-2748461613-2989606286-1000:CCJBVTGQ\Admin:Interactive:[1]

C:\Users\Admin\AppData\Local\Temp\service123.exe

C:\Users\Admin\AppData\Local\Temp\/service123.exe

C:\Users\Admin\AppData\Local\Temp\service123.exe

C:\Users\Admin\AppData\Local\Temp\/service123.exe

Network

Country Destination Domain Proto
US 8.8.8.8:53 fivev5sb.top udp
RU 195.133.48.136:80 fivev5sb.top tcp

Files

memory/3028-0-0x0000000000400000-0x0000000001069000-memory.dmp

memory/3028-1-0x0000000000400000-0x0000000001069000-memory.dmp

memory/3028-13-0x0000000000400000-0x0000000001069000-memory.dmp

memory/2848-16-0x00000000013B0000-0x00000000013C1000-memory.dmp

memory/2848-17-0x00000000747B0000-0x00000000748EC000-memory.dmp

memory/2364-21-0x00000000013B0000-0x00000000013C1000-memory.dmp

memory/532-36-0x00000000013B0000-0x00000000013C1000-memory.dmp