Malware Analysis Report

2024-10-23 17:15

Sample ID 240909-fpjp6avhle
Target 4a5a3e78f26afc3439ad4c1f5245353f5cb429355471d025919435c06af89ac3
SHA256 4a5a3e78f26afc3439ad4c1f5245353f5cb429355471d025919435c06af89ac3
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

4a5a3e78f26afc3439ad4c1f5245353f5cb429355471d025919435c06af89ac3

Threat Level: Known bad

The file 4a5a3e78f26afc3439ad4c1f5245353f5cb429355471d025919435c06af89ac3 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

Loads dropped DLL

Checks installed software on the system

Unsigned PE

Enumerates physical storage devices

System Location Discovery: System Language Discovery

Checks processor information in registry

Scheduled Task/Job: Scheduled Task

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-09-09 05:02

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-09-09 05:02

Reported

2024-09-09 05:07

Platform

win7-20240903-en

Max time kernel

292s

Max time network

121s

Command Line

"C:\Users\Admin\AppData\Local\Temp\4a5a3e78f26afc3439ad4c1f5245353f5cb429355471d025919435c06af89ac3.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\4a5a3e78f26afc3439ad4c1f5245353f5cb429355471d025919435c06af89ac3.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\4a5a3e78f26afc3439ad4c1f5245353f5cb429355471d025919435c06af89ac3.exe N/A
Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 C:\Users\Admin\AppData\Local\Temp\4a5a3e78f26afc3439ad4c1f5245353f5cb429355471d025919435c06af89ac3.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 1972 wrote to memory of 2836 N/A C:\Users\Admin\AppData\Local\Temp\4a5a3e78f26afc3439ad4c1f5245353f5cb429355471d025919435c06af89ac3.exe C:\Users\Admin\AppData\Local\Temp\service123.exe
PID 1972 wrote to memory of 2836 N/A C:\Users\Admin\AppData\Local\Temp\4a5a3e78f26afc3439ad4c1f5245353f5cb429355471d025919435c06af89ac3.exe C:\Users\Admin\AppData\Local\Temp\service123.exe
PID 1972 wrote to memory of 2836 N/A C:\Users\Admin\AppData\Local\Temp\4a5a3e78f26afc3439ad4c1f5245353f5cb429355471d025919435c06af89ac3.exe C:\Users\Admin\AppData\Local\Temp\service123.exe
PID 1972 wrote to memory of 2836 N/A C:\Users\Admin\AppData\Local\Temp\4a5a3e78f26afc3439ad4c1f5245353f5cb429355471d025919435c06af89ac3.exe C:\Users\Admin\AppData\Local\Temp\service123.exe
PID 1972 wrote to memory of 2764 N/A C:\Users\Admin\AppData\Local\Temp\4a5a3e78f26afc3439ad4c1f5245353f5cb429355471d025919435c06af89ac3.exe C:\Windows\SysWOW64\schtasks.exe
PID 1972 wrote to memory of 2764 N/A C:\Users\Admin\AppData\Local\Temp\4a5a3e78f26afc3439ad4c1f5245353f5cb429355471d025919435c06af89ac3.exe C:\Windows\SysWOW64\schtasks.exe
PID 1972 wrote to memory of 2764 N/A C:\Users\Admin\AppData\Local\Temp\4a5a3e78f26afc3439ad4c1f5245353f5cb429355471d025919435c06af89ac3.exe C:\Windows\SysWOW64\schtasks.exe
PID 1972 wrote to memory of 2764 N/A C:\Users\Admin\AppData\Local\Temp\4a5a3e78f26afc3439ad4c1f5245353f5cb429355471d025919435c06af89ac3.exe C:\Windows\SysWOW64\schtasks.exe
PID 2168 wrote to memory of 576 N/A C:\Windows\system32\taskeng.exe C:\Users\Admin\AppData\Local\Temp\service123.exe
PID 2168 wrote to memory of 576 N/A C:\Windows\system32\taskeng.exe C:\Users\Admin\AppData\Local\Temp\service123.exe
PID 2168 wrote to memory of 576 N/A C:\Windows\system32\taskeng.exe C:\Users\Admin\AppData\Local\Temp\service123.exe
PID 2168 wrote to memory of 576 N/A C:\Windows\system32\taskeng.exe C:\Users\Admin\AppData\Local\Temp\service123.exe
PID 2168 wrote to memory of 1636 N/A C:\Windows\system32\taskeng.exe C:\Users\Admin\AppData\Local\Temp\service123.exe
PID 2168 wrote to memory of 1636 N/A C:\Windows\system32\taskeng.exe C:\Users\Admin\AppData\Local\Temp\service123.exe
PID 2168 wrote to memory of 1636 N/A C:\Windows\system32\taskeng.exe C:\Users\Admin\AppData\Local\Temp\service123.exe
PID 2168 wrote to memory of 1636 N/A C:\Windows\system32\taskeng.exe C:\Users\Admin\AppData\Local\Temp\service123.exe
PID 2168 wrote to memory of 712 N/A C:\Windows\system32\taskeng.exe C:\Users\Admin\AppData\Local\Temp\service123.exe
PID 2168 wrote to memory of 712 N/A C:\Windows\system32\taskeng.exe C:\Users\Admin\AppData\Local\Temp\service123.exe
PID 2168 wrote to memory of 712 N/A C:\Windows\system32\taskeng.exe C:\Users\Admin\AppData\Local\Temp\service123.exe
PID 2168 wrote to memory of 712 N/A C:\Windows\system32\taskeng.exe C:\Users\Admin\AppData\Local\Temp\service123.exe
PID 2168 wrote to memory of 3048 N/A C:\Windows\system32\taskeng.exe C:\Users\Admin\AppData\Local\Temp\service123.exe
PID 2168 wrote to memory of 3048 N/A C:\Windows\system32\taskeng.exe C:\Users\Admin\AppData\Local\Temp\service123.exe
PID 2168 wrote to memory of 3048 N/A C:\Windows\system32\taskeng.exe C:\Users\Admin\AppData\Local\Temp\service123.exe
PID 2168 wrote to memory of 3048 N/A C:\Windows\system32\taskeng.exe C:\Users\Admin\AppData\Local\Temp\service123.exe

Processes

C:\Users\Admin\AppData\Local\Temp\4a5a3e78f26afc3439ad4c1f5245353f5cb429355471d025919435c06af89ac3.exe

"C:\Users\Admin\AppData\Local\Temp\4a5a3e78f26afc3439ad4c1f5245353f5cb429355471d025919435c06af89ac3.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 {64ECB856-43B4-4C44-8205-01B8082F5351} S-1-5-21-4177215427-74451935-3209572229-1000:JSMURNPT\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

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 tventyv20pt.top udp
RU 194.87.248.136:80 tventyv20pt.top tcp

Files

memory/1972-0-0x0000000000400000-0x0000000001072000-memory.dmp

memory/1972-1-0x0000000000400000-0x0000000001072000-memory.dmp

memory/1972-13-0x0000000000400000-0x0000000001072000-memory.dmp

memory/2836-16-0x0000000001200000-0x0000000001211000-memory.dmp

memory/2836-17-0x0000000074BB0000-0x0000000074CEC000-memory.dmp

memory/576-25-0x0000000001200000-0x0000000001211000-memory.dmp

memory/1636-40-0x0000000001200000-0x0000000001211000-memory.dmp

memory/712-55-0x0000000001200000-0x0000000001211000-memory.dmp

memory/3048-70-0x0000000001200000-0x0000000001211000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-09-09 05:02

Reported

2024-09-09 05:07

Platform

win10-20240404-en

Max time kernel

290s

Max time network

255s

Command Line

"C:\Users\Admin\AppData\Local\Temp\4a5a3e78f26afc3439ad4c1f5245353f5cb429355471d025919435c06af89ac3.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:\Windows\SysWOW64\schtasks.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\4a5a3e78f26afc3439ad4c1f5245353f5cb429355471d025919435c06af89ac3.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\4a5a3e78f26afc3439ad4c1f5245353f5cb429355471d025919435c06af89ac3.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString C:\Users\Admin\AppData\Local\Temp\4a5a3e78f26afc3439ad4c1f5245353f5cb429355471d025919435c06af89ac3.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\4a5a3e78f26afc3439ad4c1f5245353f5cb429355471d025919435c06af89ac3.exe

"C:\Users\Admin\AppData\Local\Temp\4a5a3e78f26afc3439ad4c1f5245353f5cb429355471d025919435c06af89ac3.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

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 tventyv20pt.top udp
RU 194.87.248.136:80 tventyv20pt.top tcp
US 8.8.8.8:53 0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.8.0.8.0.8.0.8.0.ip6.arpa udp
US 8.8.8.8:53 136.248.87.194.in-addr.arpa udp
US 8.8.8.8:53 43.229.111.52.in-addr.arpa udp
US 8.8.8.8:53 3.17.178.52.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp

Files

memory/3620-0-0x0000000000400000-0x0000000001072000-memory.dmp

memory/3620-1-0x0000000000400000-0x0000000001072000-memory.dmp

memory/3620-9-0x0000000000400000-0x0000000001072000-memory.dmp

memory/2532-12-0x0000000000270000-0x0000000000281000-memory.dmp

memory/2532-13-0x00000000738A0000-0x00000000739DC000-memory.dmp

memory/224-20-0x0000000000270000-0x0000000000281000-memory.dmp

memory/3560-35-0x0000000000270000-0x0000000000281000-memory.dmp

memory/3996-50-0x0000000000270000-0x0000000000281000-memory.dmp

memory/592-65-0x0000000000270000-0x0000000000281000-memory.dmp