Malware Analysis Report

2024-10-23 17:17

Sample ID 240909-zh8kgsygjr
Target 4022b529efa2d5cfea939732cab5f0829c1129809b7b6813bd1e80e7e9b14dc1
SHA256 4022b529efa2d5cfea939732cab5f0829c1129809b7b6813bd1e80e7e9b14dc1
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: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

4022b529efa2d5cfea939732cab5f0829c1129809b7b6813bd1e80e7e9b14dc1

Threat Level: Known bad

The file 4022b529efa2d5cfea939732cab5f0829c1129809b7b6813bd1e80e7e9b14dc1 was found to be: Known bad.

Malicious Activity Summary

cryptbot credential_access discovery spyware stealer

CryptBot

Credentials from Password Stores: Credentials from Web Browsers

Executes dropped EXE

Checks computer location settings

Loads dropped DLL

Reads user/profile data of web browsers

Checks installed software on the system

System Location Discovery: System Language Discovery

Unsigned PE

Enumerates physical storage devices

Scheduled Task/Job: Scheduled Task

Suspicious use of WriteProcessMemory

Checks processor information in registry

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-09-09 20:44

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-09-09 20:44

Reported

2024-09-09 20:46

Platform

win7-20240903-en

Max time kernel

146s

Max time network

73s

Command Line

"C:\Users\Admin\AppData\Local\Temp\4022b529efa2d5cfea939732cab5f0829c1129809b7b6813bd1e80e7e9b14dc1.exe"

Signatures

CryptBot

spyware stealer cryptbot

Credentials from Password Stores: Credentials from Web Browsers

credential_access stealer

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\service123.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\service123.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\4022b529efa2d5cfea939732cab5f0829c1129809b7b6813bd1e80e7e9b14dc1.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 value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString C:\Users\Admin\AppData\Local\Temp\4022b529efa2d5cfea939732cab5f0829c1129809b7b6813bd1e80e7e9b14dc1.exe N/A
Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 C:\Users\Admin\AppData\Local\Temp\4022b529efa2d5cfea939732cab5f0829c1129809b7b6813bd1e80e7e9b14dc1.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 1040 wrote to memory of 2628 N/A C:\Users\Admin\AppData\Local\Temp\4022b529efa2d5cfea939732cab5f0829c1129809b7b6813bd1e80e7e9b14dc1.exe C:\Users\Admin\AppData\Local\Temp\service123.exe
PID 1040 wrote to memory of 2628 N/A C:\Users\Admin\AppData\Local\Temp\4022b529efa2d5cfea939732cab5f0829c1129809b7b6813bd1e80e7e9b14dc1.exe C:\Users\Admin\AppData\Local\Temp\service123.exe
PID 1040 wrote to memory of 2628 N/A C:\Users\Admin\AppData\Local\Temp\4022b529efa2d5cfea939732cab5f0829c1129809b7b6813bd1e80e7e9b14dc1.exe C:\Users\Admin\AppData\Local\Temp\service123.exe
PID 1040 wrote to memory of 2628 N/A C:\Users\Admin\AppData\Local\Temp\4022b529efa2d5cfea939732cab5f0829c1129809b7b6813bd1e80e7e9b14dc1.exe C:\Users\Admin\AppData\Local\Temp\service123.exe
PID 1040 wrote to memory of 2092 N/A C:\Users\Admin\AppData\Local\Temp\4022b529efa2d5cfea939732cab5f0829c1129809b7b6813bd1e80e7e9b14dc1.exe C:\Windows\SysWOW64\schtasks.exe
PID 1040 wrote to memory of 2092 N/A C:\Users\Admin\AppData\Local\Temp\4022b529efa2d5cfea939732cab5f0829c1129809b7b6813bd1e80e7e9b14dc1.exe C:\Windows\SysWOW64\schtasks.exe
PID 1040 wrote to memory of 2092 N/A C:\Users\Admin\AppData\Local\Temp\4022b529efa2d5cfea939732cab5f0829c1129809b7b6813bd1e80e7e9b14dc1.exe C:\Windows\SysWOW64\schtasks.exe
PID 1040 wrote to memory of 2092 N/A C:\Users\Admin\AppData\Local\Temp\4022b529efa2d5cfea939732cab5f0829c1129809b7b6813bd1e80e7e9b14dc1.exe C:\Windows\SysWOW64\schtasks.exe
PID 2676 wrote to memory of 2972 N/A C:\Windows\system32\taskeng.exe C:\Users\Admin\AppData\Local\Temp\service123.exe
PID 2676 wrote to memory of 2972 N/A C:\Windows\system32\taskeng.exe C:\Users\Admin\AppData\Local\Temp\service123.exe
PID 2676 wrote to memory of 2972 N/A C:\Windows\system32\taskeng.exe C:\Users\Admin\AppData\Local\Temp\service123.exe
PID 2676 wrote to memory of 2972 N/A C:\Windows\system32\taskeng.exe C:\Users\Admin\AppData\Local\Temp\service123.exe

Processes

C:\Users\Admin\AppData\Local\Temp\4022b529efa2d5cfea939732cab5f0829c1129809b7b6813bd1e80e7e9b14dc1.exe

"C:\Users\Admin\AppData\Local\Temp\4022b529efa2d5cfea939732cab5f0829c1129809b7b6813bd1e80e7e9b14dc1.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 {D561BB1B-872A-4259-BDD4-B45DF76564E4} S-1-5-21-457978338-2990298471-2379561640-1000:WOUOSVRD\Admin:Interactive:[1]

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 tventyv20pn.top udp
US 8.8.8.8:53 tventyv20pn.top udp
RU 194.87.248.136:80 tventyv20pn.top tcp

Files

memory/1040-0-0x0000000000400000-0x0000000001068000-memory.dmp

memory/1040-2-0x0000000000400000-0x0000000001068000-memory.dmp

memory/1040-3-0x0000000000400000-0x0000000001068000-memory.dmp

memory/1040-17-0x0000000000400000-0x0000000001068000-memory.dmp

memory/2628-20-0x0000000000980000-0x0000000000991000-memory.dmp

memory/2628-21-0x00000000748B0000-0x00000000749EC000-memory.dmp

memory/2972-25-0x0000000000980000-0x0000000000991000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-09-09 20:44

Reported

2024-09-09 20:46

Platform

win10v2004-20240802-en

Max time kernel

144s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\4022b529efa2d5cfea939732cab5f0829c1129809b7b6813bd1e80e7e9b14dc1.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-1-5-21-355097885-2402257403-2971294179-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\4022b529efa2d5cfea939732cab5f0829c1129809b7b6813bd1e80e7e9b14dc1.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\4022b529efa2d5cfea939732cab5f0829c1129809b7b6813bd1e80e7e9b14dc1.exe N/A
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

Checks processor information in registry

Description Indicator Process Target
Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 C:\Users\Admin\AppData\Local\Temp\4022b529efa2d5cfea939732cab5f0829c1129809b7b6813bd1e80e7e9b14dc1.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString C:\Users\Admin\AppData\Local\Temp\4022b529efa2d5cfea939732cab5f0829c1129809b7b6813bd1e80e7e9b14dc1.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\4022b529efa2d5cfea939732cab5f0829c1129809b7b6813bd1e80e7e9b14dc1.exe

"C:\Users\Admin\AppData\Local\Temp\4022b529efa2d5cfea939732cab5f0829c1129809b7b6813bd1e80e7e9b14dc1.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 97.17.167.52.in-addr.arpa udp
US 8.8.8.8:53 25.140.123.92.in-addr.arpa udp
US 8.8.8.8:53 4.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 tventyv20pn.top udp
RU 194.87.248.136:80 tventyv20pn.top tcp
US 8.8.8.8:53 136.248.87.194.in-addr.arpa udp
US 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 73.190.18.2.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 11.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 42.56.20.217.in-addr.arpa udp

Files

memory/2020-0-0x0000000000400000-0x0000000001068000-memory.dmp

memory/2020-1-0x0000000000400000-0x0000000001068000-memory.dmp

memory/2020-13-0x0000000000400000-0x0000000001068000-memory.dmp

memory/2340-17-0x0000000000520000-0x0000000000531000-memory.dmp

memory/3380-18-0x0000000000520000-0x0000000000531000-memory.dmp

memory/3380-19-0x0000000075140000-0x000000007527C000-memory.dmp

memory/4800-32-0x0000000000520000-0x0000000000531000-memory.dmp