Malware Analysis Report

2024-10-19 02:16

Sample ID 241009-ldq8rayapf
Target 2ea57e03a2e9da369e190a028d159045_JaffaCakes118
SHA256 19b682f4983833b4f3670a22763a06cad7476076ea99a6800e7dbc8732431fd8
Tags
xloader uecu discovery loader rat
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

19b682f4983833b4f3670a22763a06cad7476076ea99a6800e7dbc8732431fd8

Threat Level: Known bad

The file 2ea57e03a2e9da369e190a028d159045_JaffaCakes118 was found to be: Known bad.

Malicious Activity Summary

xloader uecu discovery loader rat

Xloader

Xloader payload

Suspicious use of SetThreadContext

Unsigned PE

System Location Discovery: System Language Discovery

Program crash

Modifies registry class

Suspicious use of UnmapMainImage

Suspicious use of FindShellTrayWindow

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: MapViewOfSection

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-10-09 09:25

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-10-09 09:25

Reported

2024-10-09 21:50

Platform

win7-20240903-en

Max time kernel

120s

Max time network

122s

Command Line

C:\Windows\Explorer.EXE

Signatures

Xloader

loader xloader

Xloader payload

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

Program crash

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\WerFault.exe C:\Windows\SysWOW64\msiexec.exe

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\2ea57e03a2e9da369e190a028d159045_JaffaCakes118.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\msiexec.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe N/A
N/A N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe N/A
Token: SeShutdownPrivilege N/A C:\Windows\Explorer.EXE N/A
Token: SeShutdownPrivilege N/A C:\Windows\Explorer.EXE N/A
Token: SeShutdownPrivilege N/A C:\Windows\Explorer.EXE N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1924 wrote to memory of 2904 N/A C:\Users\Admin\AppData\Local\Temp\2ea57e03a2e9da369e190a028d159045_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 1924 wrote to memory of 2904 N/A C:\Users\Admin\AppData\Local\Temp\2ea57e03a2e9da369e190a028d159045_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 1924 wrote to memory of 2904 N/A C:\Users\Admin\AppData\Local\Temp\2ea57e03a2e9da369e190a028d159045_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 1924 wrote to memory of 2904 N/A C:\Users\Admin\AppData\Local\Temp\2ea57e03a2e9da369e190a028d159045_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 1924 wrote to memory of 2904 N/A C:\Users\Admin\AppData\Local\Temp\2ea57e03a2e9da369e190a028d159045_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 1924 wrote to memory of 2904 N/A C:\Users\Admin\AppData\Local\Temp\2ea57e03a2e9da369e190a028d159045_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 1924 wrote to memory of 2904 N/A C:\Users\Admin\AppData\Local\Temp\2ea57e03a2e9da369e190a028d159045_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 1924 wrote to memory of 2904 N/A C:\Users\Admin\AppData\Local\Temp\2ea57e03a2e9da369e190a028d159045_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 1924 wrote to memory of 2904 N/A C:\Users\Admin\AppData\Local\Temp\2ea57e03a2e9da369e190a028d159045_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 1924 wrote to memory of 2904 N/A C:\Users\Admin\AppData\Local\Temp\2ea57e03a2e9da369e190a028d159045_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 1252 wrote to memory of 2772 N/A C:\Windows\Explorer.EXE C:\Windows\SysWOW64\msiexec.exe
PID 1252 wrote to memory of 2772 N/A C:\Windows\Explorer.EXE C:\Windows\SysWOW64\msiexec.exe
PID 1252 wrote to memory of 2772 N/A C:\Windows\Explorer.EXE C:\Windows\SysWOW64\msiexec.exe
PID 1252 wrote to memory of 2772 N/A C:\Windows\Explorer.EXE C:\Windows\SysWOW64\msiexec.exe
PID 1252 wrote to memory of 2772 N/A C:\Windows\Explorer.EXE C:\Windows\SysWOW64\msiexec.exe
PID 1252 wrote to memory of 2772 N/A C:\Windows\Explorer.EXE C:\Windows\SysWOW64\msiexec.exe
PID 1252 wrote to memory of 2772 N/A C:\Windows\Explorer.EXE C:\Windows\SysWOW64\msiexec.exe
PID 2772 wrote to memory of 2776 N/A C:\Windows\SysWOW64\msiexec.exe C:\Windows\SysWOW64\WerFault.exe
PID 2772 wrote to memory of 2776 N/A C:\Windows\SysWOW64\msiexec.exe C:\Windows\SysWOW64\WerFault.exe
PID 2772 wrote to memory of 2776 N/A C:\Windows\SysWOW64\msiexec.exe C:\Windows\SysWOW64\WerFault.exe
PID 2772 wrote to memory of 2776 N/A C:\Windows\SysWOW64\msiexec.exe C:\Windows\SysWOW64\WerFault.exe

Processes

C:\Windows\Explorer.EXE

C:\Windows\Explorer.EXE

C:\Users\Admin\AppData\Local\Temp\2ea57e03a2e9da369e190a028d159045_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\2ea57e03a2e9da369e190a028d159045_JaffaCakes118.exe"

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe

"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"

C:\Windows\SysWOW64\msiexec.exe

"C:\Windows\SysWOW64\msiexec.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2772 -s 268

Network

N/A

Files

memory/1924-0-0x000000007411E000-0x000000007411F000-memory.dmp

memory/1924-1-0x00000000008D0000-0x0000000000A40000-memory.dmp

memory/1924-2-0x0000000000260000-0x000000000027E000-memory.dmp

memory/1924-3-0x0000000074110000-0x00000000747FE000-memory.dmp

memory/1924-4-0x000000007411E000-0x000000007411F000-memory.dmp

memory/1924-5-0x0000000074110000-0x00000000747FE000-memory.dmp

memory/1924-6-0x0000000005440000-0x00000000054DE000-memory.dmp

memory/1924-7-0x0000000000660000-0x000000000068E000-memory.dmp

memory/2904-12-0x0000000000400000-0x0000000000428000-memory.dmp

memory/2904-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/2904-9-0x0000000000400000-0x0000000000428000-memory.dmp

memory/2904-8-0x0000000000400000-0x0000000000428000-memory.dmp

memory/1924-13-0x0000000074110000-0x00000000747FE000-memory.dmp

memory/2904-14-0x00000000008F0000-0x0000000000BF3000-memory.dmp

memory/2904-17-0x0000000000100000-0x0000000000110000-memory.dmp

memory/2904-16-0x0000000000400000-0x0000000000428000-memory.dmp

memory/1252-18-0x0000000004120000-0x0000000004206000-memory.dmp

memory/2772-19-0x0000000000270000-0x0000000000284000-memory.dmp

memory/2772-20-0x0000000000270000-0x0000000000284000-memory.dmp

memory/2772-22-0x0000000000270000-0x0000000000284000-memory.dmp

memory/1252-25-0x0000000004120000-0x0000000004206000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-10-09 09:25

Reported

2024-10-09 21:49

Platform

win10v2004-20241007-en

Max time kernel

149s

Max time network

151s

Command Line

C:\Windows\Explorer.EXE

Signatures

Xloader

loader xloader

Xloader payload

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

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\rundll32.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\cmd.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\2ea57e03a2e9da369e190a028d159045_JaffaCakes118.exe N/A

Modifies registry class

Description Indicator Process Target
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\ C:\Windows\Explorer.EXE N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\2ea57e03a2e9da369e190a028d159045_JaffaCakes118.exe N/A
N/A N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe N/A
N/A N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe N/A
N/A N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe N/A
N/A N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\2ea57e03a2e9da369e190a028d159045_JaffaCakes118.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\SysWOW64\rundll32.exe N/A
Token: SeShutdownPrivilege N/A C:\Windows\Explorer.EXE N/A
Token: SeCreatePagefilePrivilege N/A C:\Windows\Explorer.EXE N/A
Token: SeShutdownPrivilege N/A C:\Windows\Explorer.EXE N/A
Token: SeCreatePagefilePrivilege N/A C:\Windows\Explorer.EXE N/A

Suspicious use of FindShellTrayWindow

Description Indicator Process Target
N/A N/A C:\Windows\Explorer.EXE N/A
N/A N/A C:\Windows\Explorer.EXE N/A

Suspicious use of UnmapMainImage

Description Indicator Process Target
N/A N/A C:\Windows\Explorer.EXE N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 5016 wrote to memory of 3792 N/A C:\Users\Admin\AppData\Local\Temp\2ea57e03a2e9da369e190a028d159045_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 5016 wrote to memory of 3792 N/A C:\Users\Admin\AppData\Local\Temp\2ea57e03a2e9da369e190a028d159045_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 5016 wrote to memory of 3792 N/A C:\Users\Admin\AppData\Local\Temp\2ea57e03a2e9da369e190a028d159045_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 5016 wrote to memory of 3792 N/A C:\Users\Admin\AppData\Local\Temp\2ea57e03a2e9da369e190a028d159045_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 5016 wrote to memory of 3792 N/A C:\Users\Admin\AppData\Local\Temp\2ea57e03a2e9da369e190a028d159045_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 5016 wrote to memory of 3792 N/A C:\Users\Admin\AppData\Local\Temp\2ea57e03a2e9da369e190a028d159045_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 3428 wrote to memory of 3092 N/A C:\Windows\Explorer.EXE C:\Windows\SysWOW64\rundll32.exe
PID 3428 wrote to memory of 3092 N/A C:\Windows\Explorer.EXE C:\Windows\SysWOW64\rundll32.exe
PID 3428 wrote to memory of 3092 N/A C:\Windows\Explorer.EXE C:\Windows\SysWOW64\rundll32.exe
PID 3092 wrote to memory of 2568 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\cmd.exe
PID 3092 wrote to memory of 2568 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\cmd.exe
PID 3092 wrote to memory of 2568 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\cmd.exe

Processes

C:\Windows\Explorer.EXE

C:\Windows\Explorer.EXE

C:\Users\Admin\AppData\Local\Temp\2ea57e03a2e9da369e190a028d159045_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\2ea57e03a2e9da369e190a028d159045_JaffaCakes118.exe"

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe

"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"

C:\Windows\SysWOW64\autochk.exe

"C:\Windows\SysWOW64\autochk.exe"

C:\Windows\SysWOW64\rundll32.exe

"C:\Windows\SysWOW64\rundll32.exe"

C:\Windows\SysWOW64\cmd.exe

/c del "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 138.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 0.205.248.87.in-addr.arpa udp
US 8.8.8.8:53 55.36.223.20.in-addr.arpa udp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 98.209.201.84.in-addr.arpa udp
US 8.8.8.8:53 www.gasworldchampionships.com udp
US 8.8.8.8:53 www.somerderm.com udp
US 8.8.8.8:53 48.229.111.52.in-addr.arpa udp
US 8.8.8.8:53 133.190.18.2.in-addr.arpa udp
US 8.8.8.8:53 www.alzheimers.computer udp
US 8.8.8.8:53 www.sts-100.com udp
US 8.8.8.8:53 www.shelavish2.com udp
US 8.8.8.8:53 www.hosefire.com udp
US 8.8.8.8:53 www.royalglamempirellc.com udp
US 8.8.8.8:53 www.ezewasser.com udp
US 8.8.8.8:53 www.illoftapartments.com udp
US 3.33.130.190:80 www.illoftapartments.com tcp
US 8.8.8.8:53 190.130.33.3.in-addr.arpa udp
US 8.8.8.8:53 www.deepblueriver.com udp
US 8.8.8.8:53 www.height-project.online udp
US 8.8.8.8:53 www.flbtyc638.com udp

Files

memory/5016-0-0x00000000747EE000-0x00000000747EF000-memory.dmp

memory/5016-1-0x00000000004A0000-0x0000000000610000-memory.dmp

memory/5016-2-0x0000000005000000-0x000000000509C000-memory.dmp

memory/5016-3-0x0000000005650000-0x0000000005BF4000-memory.dmp

memory/5016-4-0x00000000050A0000-0x0000000005132000-memory.dmp

memory/5016-5-0x0000000004FC0000-0x0000000004FCA000-memory.dmp

memory/5016-6-0x00000000052A0000-0x00000000052F6000-memory.dmp

memory/5016-7-0x00000000747E0000-0x0000000074F90000-memory.dmp

memory/5016-8-0x0000000005240000-0x000000000525E000-memory.dmp

memory/5016-9-0x00000000747EE000-0x00000000747EF000-memory.dmp

memory/5016-10-0x00000000747E0000-0x0000000074F90000-memory.dmp

memory/5016-11-0x0000000005FD0000-0x000000000606E000-memory.dmp

memory/5016-12-0x0000000005DC0000-0x0000000005DEE000-memory.dmp

memory/3792-13-0x0000000000400000-0x0000000000428000-memory.dmp

memory/5016-15-0x00000000747E0000-0x0000000074F90000-memory.dmp

memory/3792-16-0x0000000001780000-0x0000000001ACA000-memory.dmp

memory/3792-18-0x0000000000400000-0x0000000000428000-memory.dmp

memory/3792-19-0x0000000001BE0000-0x0000000001BF0000-memory.dmp

memory/3428-20-0x00000000030F0000-0x00000000031AF000-memory.dmp

memory/3092-21-0x0000000000B80000-0x0000000000B94000-memory.dmp

memory/3092-23-0x0000000000B80000-0x0000000000B94000-memory.dmp

memory/3092-24-0x00000000004B0000-0x00000000004D8000-memory.dmp

memory/3428-25-0x00000000030F0000-0x00000000031AF000-memory.dmp

memory/3428-29-0x0000000008E30000-0x0000000008FBD000-memory.dmp

memory/3428-30-0x0000000008E30000-0x0000000008FBD000-memory.dmp