Malware Analysis Report

2024-10-23 17:16

Sample ID 240910-ca533ashkc
Target cb5ad18649a907f49154af26ad332030.bin
SHA256 0c263065c579b7529d918bf2fb6a9db5d60eeedd4f1c7e74819948e304133c6c
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

0c263065c579b7529d918bf2fb6a9db5d60eeedd4f1c7e74819948e304133c6c

Threat Level: Known bad

The file cb5ad18649a907f49154af26ad332030.bin 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

Reads user/profile data of web browsers

Checks computer location settings

Loads dropped DLL

Checks installed software on the system

Enumerates physical storage devices

Unsigned PE

System Location Discovery: System Language Discovery

Suspicious use of WriteProcessMemory

Checks processor information in registry

Scheduled Task/Job: Scheduled Task

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-09-10 01:53

Signatures

Unsigned PE

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

Analysis: behavioral2

Detonation Overview

Submitted

2024-09-10 01:53

Reported

2024-09-10 01:55

Platform

win10v2004-20240802-en

Max time kernel

144s

Max time network

95s

Command Line

"C:\Users\Admin\AppData\Local\Temp\8874ee4d9c878a6dc7f2681ec36df05cb09c44ccb3be0ec89569f5bdece80519.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-1-5-21-945322488-2060912225-3527527000-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\8874ee4d9c878a6dc7f2681ec36df05cb09c44ccb3be0ec89569f5bdece80519.exe N/A

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

Loads dropped DLL

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:\Windows\SysWOW64\schtasks.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\8874ee4d9c878a6dc7f2681ec36df05cb09c44ccb3be0ec89569f5bdece80519.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\service123.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\8874ee4d9c878a6dc7f2681ec36df05cb09c44ccb3be0ec89569f5bdece80519.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString C:\Users\Admin\AppData\Local\Temp\8874ee4d9c878a6dc7f2681ec36df05cb09c44ccb3be0ec89569f5bdece80519.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\8874ee4d9c878a6dc7f2681ec36df05cb09c44ccb3be0ec89569f5bdece80519.exe

"C:\Users\Admin\AppData\Local\Temp\8874ee4d9c878a6dc7f2681ec36df05cb09c44ccb3be0ec89569f5bdece80519.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

Network

Country Destination Domain Proto
US 8.8.8.8:53 196.249.167.52.in-addr.arpa udp
US 8.8.8.8:53 75.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 0.205.248.87.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 tventyv20sb.top udp
RU 194.87.248.136:80 tventyv20sb.top tcp
US 8.8.8.8:53 154.239.44.20.in-addr.arpa udp
US 8.8.8.8:53 136.248.87.194.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 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 31.243.111.52.in-addr.arpa udp

Files

memory/4620-0-0x0000000000400000-0x000000000106F000-memory.dmp

memory/4620-1-0x0000000000400000-0x000000000106F000-memory.dmp

memory/4620-13-0x0000000000400000-0x000000000106F000-memory.dmp

memory/1528-15-0x0000000000BC0000-0x0000000000BD1000-memory.dmp

memory/1528-16-0x0000000074BA0000-0x0000000074CDC000-memory.dmp

memory/4476-29-0x0000000000BC0000-0x0000000000BD1000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2024-09-10 01:53

Reported

2024-09-10 01:55

Platform

win7-20240903-en

Max time kernel

141s

Max time network

123s

Command Line

"C:\Users\Admin\AppData\Local\Temp\8874ee4d9c878a6dc7f2681ec36df05cb09c44ccb3be0ec89569f5bdece80519.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\8874ee4d9c878a6dc7f2681ec36df05cb09c44ccb3be0ec89569f5bdece80519.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\8874ee4d9c878a6dc7f2681ec36df05cb09c44ccb3be0ec89569f5bdece80519.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString C:\Users\Admin\AppData\Local\Temp\8874ee4d9c878a6dc7f2681ec36df05cb09c44ccb3be0ec89569f5bdece80519.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 2956 wrote to memory of 3052 N/A C:\Users\Admin\AppData\Local\Temp\8874ee4d9c878a6dc7f2681ec36df05cb09c44ccb3be0ec89569f5bdece80519.exe C:\Users\Admin\AppData\Local\Temp\service123.exe
PID 2956 wrote to memory of 3052 N/A C:\Users\Admin\AppData\Local\Temp\8874ee4d9c878a6dc7f2681ec36df05cb09c44ccb3be0ec89569f5bdece80519.exe C:\Users\Admin\AppData\Local\Temp\service123.exe
PID 2956 wrote to memory of 3052 N/A C:\Users\Admin\AppData\Local\Temp\8874ee4d9c878a6dc7f2681ec36df05cb09c44ccb3be0ec89569f5bdece80519.exe C:\Users\Admin\AppData\Local\Temp\service123.exe
PID 2956 wrote to memory of 3052 N/A C:\Users\Admin\AppData\Local\Temp\8874ee4d9c878a6dc7f2681ec36df05cb09c44ccb3be0ec89569f5bdece80519.exe C:\Users\Admin\AppData\Local\Temp\service123.exe
PID 2956 wrote to memory of 1044 N/A C:\Users\Admin\AppData\Local\Temp\8874ee4d9c878a6dc7f2681ec36df05cb09c44ccb3be0ec89569f5bdece80519.exe C:\Windows\SysWOW64\schtasks.exe
PID 2956 wrote to memory of 1044 N/A C:\Users\Admin\AppData\Local\Temp\8874ee4d9c878a6dc7f2681ec36df05cb09c44ccb3be0ec89569f5bdece80519.exe C:\Windows\SysWOW64\schtasks.exe
PID 2956 wrote to memory of 1044 N/A C:\Users\Admin\AppData\Local\Temp\8874ee4d9c878a6dc7f2681ec36df05cb09c44ccb3be0ec89569f5bdece80519.exe C:\Windows\SysWOW64\schtasks.exe
PID 2956 wrote to memory of 1044 N/A C:\Users\Admin\AppData\Local\Temp\8874ee4d9c878a6dc7f2681ec36df05cb09c44ccb3be0ec89569f5bdece80519.exe C:\Windows\SysWOW64\schtasks.exe
PID 2812 wrote to memory of 2772 N/A C:\Windows\system32\taskeng.exe C:\Users\Admin\AppData\Local\Temp\service123.exe
PID 2812 wrote to memory of 2772 N/A C:\Windows\system32\taskeng.exe C:\Users\Admin\AppData\Local\Temp\service123.exe
PID 2812 wrote to memory of 2772 N/A C:\Windows\system32\taskeng.exe C:\Users\Admin\AppData\Local\Temp\service123.exe
PID 2812 wrote to memory of 2772 N/A C:\Windows\system32\taskeng.exe C:\Users\Admin\AppData\Local\Temp\service123.exe
PID 2812 wrote to memory of 1884 N/A C:\Windows\system32\taskeng.exe C:\Users\Admin\AppData\Local\Temp\service123.exe
PID 2812 wrote to memory of 1884 N/A C:\Windows\system32\taskeng.exe C:\Users\Admin\AppData\Local\Temp\service123.exe
PID 2812 wrote to memory of 1884 N/A C:\Windows\system32\taskeng.exe C:\Users\Admin\AppData\Local\Temp\service123.exe
PID 2812 wrote to memory of 1884 N/A C:\Windows\system32\taskeng.exe C:\Users\Admin\AppData\Local\Temp\service123.exe

Processes

C:\Users\Admin\AppData\Local\Temp\8874ee4d9c878a6dc7f2681ec36df05cb09c44ccb3be0ec89569f5bdece80519.exe

"C:\Users\Admin\AppData\Local\Temp\8874ee4d9c878a6dc7f2681ec36df05cb09c44ccb3be0ec89569f5bdece80519.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 {B50D77EF-D78F-4E31-8666-08A0AC66C5B8} S-1-5-21-1846800975-3917212583-2893086201-1000:ZQABOPWE\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 tventyv20sb.top udp
RU 194.87.248.136:80 tventyv20sb.top tcp

Files

memory/2956-0-0x0000000000400000-0x000000000106F000-memory.dmp

memory/2956-1-0x0000000000400000-0x000000000106F000-memory.dmp

memory/2956-13-0x0000000000400000-0x000000000106F000-memory.dmp

memory/2772-19-0x0000000000C70000-0x0000000000C81000-memory.dmp

memory/3052-20-0x0000000000C70000-0x0000000000C81000-memory.dmp

memory/3052-21-0x0000000075170000-0x00000000752AC000-memory.dmp

memory/1884-34-0x0000000000C70000-0x0000000000C81000-memory.dmp