Malware Analysis Report

2024-10-23 17:16

Sample ID 240909-1pjelstfnb
Target feb98395aab41886938dc9f25716097f13792a09af42e22214d862002d82886d
SHA256 feb98395aab41886938dc9f25716097f13792a09af42e22214d862002d82886d
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

feb98395aab41886938dc9f25716097f13792a09af42e22214d862002d82886d

Threat Level: Known bad

The file feb98395aab41886938dc9f25716097f13792a09af42e22214d862002d82886d 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

System Location Discovery: System Language Discovery

Enumerates physical storage devices

Unsigned PE

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 21:49

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-09-09 21:49

Reported

2024-09-09 21:52

Platform

win10v2004-20240802-en

Max time kernel

149s

Max time network

102s

Command Line

"C:\Users\Admin\AppData\Local\Temp\feb98395aab41886938dc9f25716097f13792a09af42e22214d862002d82886d.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-1-5-21-1194130065-3471212556-1656947724-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\feb98395aab41886938dc9f25716097f13792a09af42e22214d862002d82886d.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\feb98395aab41886938dc9f25716097f13792a09af42e22214d862002d82886d.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\feb98395aab41886938dc9f25716097f13792a09af42e22214d862002d82886d.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString C:\Users\Admin\AppData\Local\Temp\feb98395aab41886938dc9f25716097f13792a09af42e22214d862002d82886d.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\feb98395aab41886938dc9f25716097f13792a09af42e22214d862002d82886d.exe

"C:\Users\Admin\AppData\Local\Temp\feb98395aab41886938dc9f25716097f13792a09af42e22214d862002d82886d.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 13.86.106.20.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 136.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 196.249.167.52.in-addr.arpa udp
US 8.8.8.8:53 sevtv17pn.top udp
RU 195.133.13.230:80 sevtv17pn.top tcp
US 8.8.8.8:53 230.13.133.195.in-addr.arpa udp
US 8.8.8.8:53 58.55.71.13.in-addr.arpa udp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 73.190.18.2.in-addr.arpa udp
NL 52.111.243.31:443 tcp
US 8.8.8.8:53 48.229.111.52.in-addr.arpa udp

Files

memory/4144-0-0x0000000000400000-0x000000000106A000-memory.dmp

memory/4144-1-0x0000000000400000-0x000000000106A000-memory.dmp

memory/4144-13-0x0000000000400000-0x000000000106A000-memory.dmp

memory/2196-15-0x0000000000A90000-0x0000000000AA1000-memory.dmp

memory/2196-16-0x0000000075380000-0x00000000754BC000-memory.dmp

memory/548-27-0x0000000000A90000-0x0000000000AA1000-memory.dmp

memory/2488-42-0x0000000000A90000-0x0000000000AA1000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-09-09 21:49

Reported

2024-09-09 21:52

Platform

win11-20240802-en

Max time kernel

147s

Max time network

151s

Command Line

"C:\Users\Admin\AppData\Local\Temp\feb98395aab41886938dc9f25716097f13792a09af42e22214d862002d82886d.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

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:\Users\Admin\AppData\Local\Temp\feb98395aab41886938dc9f25716097f13792a09af42e22214d862002d82886d.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\feb98395aab41886938dc9f25716097f13792a09af42e22214d862002d82886d.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString C:\Users\Admin\AppData\Local\Temp\feb98395aab41886938dc9f25716097f13792a09af42e22214d862002d82886d.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\feb98395aab41886938dc9f25716097f13792a09af42e22214d862002d82886d.exe

"C:\Users\Admin\AppData\Local\Temp\feb98395aab41886938dc9f25716097f13792a09af42e22214d862002d82886d.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 sevtv17pn.top udp
RU 195.133.13.230:80 sevtv17pn.top tcp
US 8.8.8.8:53 230.13.133.195.in-addr.arpa udp

Files

memory/500-0-0x0000000000400000-0x000000000106A000-memory.dmp

memory/500-1-0x0000000000400000-0x000000000106A000-memory.dmp

memory/500-13-0x0000000000400000-0x000000000106A000-memory.dmp

memory/436-15-0x0000000000ED0000-0x0000000000EE1000-memory.dmp

memory/436-16-0x0000000075680000-0x00000000757BC000-memory.dmp

memory/4112-29-0x0000000000ED0000-0x0000000000EE1000-memory.dmp