Malware Analysis Report

2024-10-23 17:17

Sample ID 240909-jq2txa1ale
Target joffer2.exe
SHA256 e372a2d6ea5d76b0ffbccfa5b6574b910826fb5b5998e8e5cc4dcd49f6dffff0
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

e372a2d6ea5d76b0ffbccfa5b6574b910826fb5b5998e8e5cc4dcd49f6dffff0

Threat Level: Known bad

The file joffer2.exe 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

Loads dropped DLL

Executes dropped EXE

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

Scheduled Task/Job: Scheduled Task

Checks processor information in registry

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-09-09 07:53

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-09-09 07:53

Reported

2024-09-09 07:55

Platform

win7-20240903-en

Max time kernel

150s

Max time network

122s

Command Line

"C:\Users\Admin\AppData\Local\Temp\joffer2.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\joffer2.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\joffer2.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString C:\Users\Admin\AppData\Local\Temp\joffer2.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 2712 wrote to memory of 2896 N/A C:\Users\Admin\AppData\Local\Temp\joffer2.exe C:\Users\Admin\AppData\Local\Temp\service123.exe
PID 2712 wrote to memory of 2896 N/A C:\Users\Admin\AppData\Local\Temp\joffer2.exe C:\Users\Admin\AppData\Local\Temp\service123.exe
PID 2712 wrote to memory of 2896 N/A C:\Users\Admin\AppData\Local\Temp\joffer2.exe C:\Users\Admin\AppData\Local\Temp\service123.exe
PID 2712 wrote to memory of 2896 N/A C:\Users\Admin\AppData\Local\Temp\joffer2.exe C:\Users\Admin\AppData\Local\Temp\service123.exe
PID 2712 wrote to memory of 2784 N/A C:\Users\Admin\AppData\Local\Temp\joffer2.exe C:\Windows\SysWOW64\schtasks.exe
PID 2712 wrote to memory of 2784 N/A C:\Users\Admin\AppData\Local\Temp\joffer2.exe C:\Windows\SysWOW64\schtasks.exe
PID 2712 wrote to memory of 2784 N/A C:\Users\Admin\AppData\Local\Temp\joffer2.exe C:\Windows\SysWOW64\schtasks.exe
PID 2712 wrote to memory of 2784 N/A C:\Users\Admin\AppData\Local\Temp\joffer2.exe C:\Windows\SysWOW64\schtasks.exe
PID 2768 wrote to memory of 2804 N/A C:\Windows\system32\taskeng.exe C:\Users\Admin\AppData\Local\Temp\service123.exe
PID 2768 wrote to memory of 2804 N/A C:\Windows\system32\taskeng.exe C:\Users\Admin\AppData\Local\Temp\service123.exe
PID 2768 wrote to memory of 2804 N/A C:\Windows\system32\taskeng.exe C:\Users\Admin\AppData\Local\Temp\service123.exe
PID 2768 wrote to memory of 2804 N/A C:\Windows\system32\taskeng.exe C:\Users\Admin\AppData\Local\Temp\service123.exe
PID 2768 wrote to memory of 2980 N/A C:\Windows\system32\taskeng.exe C:\Users\Admin\AppData\Local\Temp\service123.exe
PID 2768 wrote to memory of 2980 N/A C:\Windows\system32\taskeng.exe C:\Users\Admin\AppData\Local\Temp\service123.exe
PID 2768 wrote to memory of 2980 N/A C:\Windows\system32\taskeng.exe C:\Users\Admin\AppData\Local\Temp\service123.exe
PID 2768 wrote to memory of 2980 N/A C:\Windows\system32\taskeng.exe C:\Users\Admin\AppData\Local\Temp\service123.exe

Processes

C:\Users\Admin\AppData\Local\Temp\joffer2.exe

"C:\Users\Admin\AppData\Local\Temp\joffer2.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 {73AC7271-2A3D-4E0A-B940-3515BAEE907F} S-1-5-21-3290804112-2823094203-3137964600-1000:VORHPBAB\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 sevtv17sb.top udp
RU 194.87.248.136:80 sevtv17sb.top tcp

Files

memory/2712-0-0x0000000000400000-0x0000000001066000-memory.dmp

memory/2712-1-0x0000000000400000-0x0000000001066000-memory.dmp

memory/2712-12-0x0000000000400000-0x0000000001066000-memory.dmp

memory/2896-15-0x0000000000080000-0x0000000000091000-memory.dmp

memory/2896-16-0x00000000751F0000-0x000000007532C000-memory.dmp

memory/2804-20-0x0000000000080000-0x0000000000091000-memory.dmp

memory/2980-35-0x0000000000080000-0x0000000000091000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-09-09 07:53

Reported

2024-09-09 07:55

Platform

win10v2004-20240802-en

Max time kernel

150s

Max time network

94s

Command Line

"C:\Users\Admin\AppData\Local\Temp\joffer2.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-1-5-21-2392887640-1187051047-2909758433-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\joffer2.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\joffer2.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\joffer2.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString C:\Users\Admin\AppData\Local\Temp\joffer2.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\joffer2.exe

"C:\Users\Admin\AppData\Local\Temp\joffer2.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 8.8.8.8:53 196.249.167.52.in-addr.arpa udp
US 8.8.8.8:53 81.144.22.2.in-addr.arpa udp
US 8.8.8.8:53 136.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 sevtv17sb.top udp
RU 194.87.248.136:80 sevtv17sb.top tcp
US 8.8.8.8:53 136.248.87.194.in-addr.arpa udp
US 8.8.8.8:53 241.150.49.20.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 83.12.20.2.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 48.229.111.52.in-addr.arpa udp

Files

memory/552-0-0x0000000000400000-0x0000000001066000-memory.dmp

memory/552-1-0x0000000000400000-0x0000000001066000-memory.dmp

memory/552-13-0x0000000000400000-0x0000000001066000-memory.dmp

memory/1944-15-0x0000000000560000-0x0000000000571000-memory.dmp

memory/1944-16-0x0000000075A80000-0x0000000075BBC000-memory.dmp

memory/4348-19-0x0000000000560000-0x0000000000571000-memory.dmp

memory/3976-34-0x0000000000560000-0x0000000000571000-memory.dmp