Malware Analysis Report

2024-12-07 14:20

Sample ID 241121-yl7xpazpdp
Target c355f8737bf92c3a48fcc9f15a2efff3fc92b267a8dd3776d120e08d2d372046
SHA256 c355f8737bf92c3a48fcc9f15a2efff3fc92b267a8dd3776d120e08d2d372046
Tags
xloader g3ws 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

c355f8737bf92c3a48fcc9f15a2efff3fc92b267a8dd3776d120e08d2d372046

Threat Level: Known bad

The file c355f8737bf92c3a48fcc9f15a2efff3fc92b267a8dd3776d120e08d2d372046 was found to be: Known bad.

Malicious Activity Summary

xloader g3ws discovery loader rat

Xloader

Xloader family

Xloader payload

Deletes itself

Suspicious use of SetThreadContext

System Location Discovery: System Language Discovery

Unsigned PE

Suspicious use of AdjustPrivilegeToken

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: MapViewOfSection

Suspicious use of WriteProcessMemory

Gathers network information

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-21 19:53

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-11-21 19:53

Reported

2024-11-21 19:56

Platform

win7-20241010-en

Max time kernel

148s

Max time network

19s

Command Line

C:\Windows\Explorer.EXE

Signatures

Xloader

loader xloader

Xloader family

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

Deletes itself

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

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 2220 set thread context of 2460 N/A C:\Users\Admin\AppData\Local\Temp\cZAFQY1ivxT14o0.exe C:\Users\Admin\AppData\Local\Temp\cZAFQY1ivxT14o0.exe
PID 2460 set thread context of 1220 N/A C:\Users\Admin\AppData\Local\Temp\cZAFQY1ivxT14o0.exe C:\Windows\Explorer.EXE
PID 2804 set thread context of 1220 N/A C:\Windows\SysWOW64\ipconfig.exe C:\Windows\Explorer.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\cZAFQY1ivxT14o0.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\ipconfig.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\cmd.exe N/A

Gathers network information

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

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\cZAFQY1ivxT14o0.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\SysWOW64\ipconfig.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2220 wrote to memory of 2460 N/A C:\Users\Admin\AppData\Local\Temp\cZAFQY1ivxT14o0.exe C:\Users\Admin\AppData\Local\Temp\cZAFQY1ivxT14o0.exe
PID 2220 wrote to memory of 2460 N/A C:\Users\Admin\AppData\Local\Temp\cZAFQY1ivxT14o0.exe C:\Users\Admin\AppData\Local\Temp\cZAFQY1ivxT14o0.exe
PID 2220 wrote to memory of 2460 N/A C:\Users\Admin\AppData\Local\Temp\cZAFQY1ivxT14o0.exe C:\Users\Admin\AppData\Local\Temp\cZAFQY1ivxT14o0.exe
PID 2220 wrote to memory of 2460 N/A C:\Users\Admin\AppData\Local\Temp\cZAFQY1ivxT14o0.exe C:\Users\Admin\AppData\Local\Temp\cZAFQY1ivxT14o0.exe
PID 2220 wrote to memory of 2460 N/A C:\Users\Admin\AppData\Local\Temp\cZAFQY1ivxT14o0.exe C:\Users\Admin\AppData\Local\Temp\cZAFQY1ivxT14o0.exe
PID 2220 wrote to memory of 2460 N/A C:\Users\Admin\AppData\Local\Temp\cZAFQY1ivxT14o0.exe C:\Users\Admin\AppData\Local\Temp\cZAFQY1ivxT14o0.exe
PID 2220 wrote to memory of 2460 N/A C:\Users\Admin\AppData\Local\Temp\cZAFQY1ivxT14o0.exe C:\Users\Admin\AppData\Local\Temp\cZAFQY1ivxT14o0.exe
PID 1220 wrote to memory of 2804 N/A C:\Windows\Explorer.EXE C:\Windows\SysWOW64\ipconfig.exe
PID 1220 wrote to memory of 2804 N/A C:\Windows\Explorer.EXE C:\Windows\SysWOW64\ipconfig.exe
PID 1220 wrote to memory of 2804 N/A C:\Windows\Explorer.EXE C:\Windows\SysWOW64\ipconfig.exe
PID 1220 wrote to memory of 2804 N/A C:\Windows\Explorer.EXE C:\Windows\SysWOW64\ipconfig.exe
PID 2804 wrote to memory of 2664 N/A C:\Windows\SysWOW64\ipconfig.exe C:\Windows\SysWOW64\cmd.exe
PID 2804 wrote to memory of 2664 N/A C:\Windows\SysWOW64\ipconfig.exe C:\Windows\SysWOW64\cmd.exe
PID 2804 wrote to memory of 2664 N/A C:\Windows\SysWOW64\ipconfig.exe C:\Windows\SysWOW64\cmd.exe
PID 2804 wrote to memory of 2664 N/A C:\Windows\SysWOW64\ipconfig.exe C:\Windows\SysWOW64\cmd.exe

Processes

C:\Windows\Explorer.EXE

C:\Windows\Explorer.EXE

C:\Users\Admin\AppData\Local\Temp\cZAFQY1ivxT14o0.exe

"C:\Users\Admin\AppData\Local\Temp\cZAFQY1ivxT14o0.exe"

C:\Users\Admin\AppData\Local\Temp\cZAFQY1ivxT14o0.exe

"C:\Users\Admin\AppData\Local\Temp\cZAFQY1ivxT14o0.exe"

C:\Windows\SysWOW64\ipconfig.exe

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

C:\Windows\SysWOW64\cmd.exe

/c del "C:\Users\Admin\AppData\Local\Temp\cZAFQY1ivxT14o0.exe"

Network

N/A

Files

memory/2220-0-0x0000000074EBE000-0x0000000074EBF000-memory.dmp

memory/2220-1-0x0000000000BE0000-0x0000000000C68000-memory.dmp

memory/2220-2-0x0000000074EB0000-0x000000007559E000-memory.dmp

memory/2220-4-0x0000000074EB0000-0x000000007559E000-memory.dmp

memory/2220-3-0x00000000004B0000-0x00000000004C6000-memory.dmp

memory/2220-5-0x0000000074EBE000-0x0000000074EBF000-memory.dmp

memory/2220-6-0x0000000074EB0000-0x000000007559E000-memory.dmp

memory/2220-7-0x00000000004C0000-0x00000000004CA000-memory.dmp

memory/2220-8-0x0000000008040000-0x00000000080AA000-memory.dmp

memory/2220-9-0x0000000000BB0000-0x0000000000BE2000-memory.dmp

memory/2460-16-0x0000000000400000-0x000000000042B000-memory.dmp

memory/2460-14-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/2460-12-0x0000000000400000-0x000000000042B000-memory.dmp

memory/2460-10-0x0000000000400000-0x000000000042B000-memory.dmp

memory/2220-17-0x0000000074EB0000-0x000000007559E000-memory.dmp

memory/2460-18-0x0000000000C70000-0x0000000000F73000-memory.dmp

memory/2460-22-0x0000000000180000-0x0000000000191000-memory.dmp

memory/2460-21-0x0000000000400000-0x000000000042B000-memory.dmp

memory/1220-20-0x0000000000010000-0x0000000000020000-memory.dmp

memory/1220-23-0x0000000004CA0000-0x0000000004DC1000-memory.dmp

memory/2804-24-0x00000000002D0000-0x00000000002DA000-memory.dmp

memory/2804-25-0x00000000002D0000-0x00000000002DA000-memory.dmp

memory/2804-26-0x0000000000080000-0x00000000000AB000-memory.dmp

memory/1220-27-0x0000000004CA0000-0x0000000004DC1000-memory.dmp

memory/1220-29-0x0000000000010000-0x0000000000020000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-21 19:53

Reported

2024-11-21 19:56

Platform

win10v2004-20241007-en

Max time kernel

149s

Max time network

153s

Command Line

C:\Windows\Explorer.EXE

Signatures

Xloader

loader xloader

Xloader family

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

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 3656 set thread context of 64 N/A C:\Users\Admin\AppData\Local\Temp\cZAFQY1ivxT14o0.exe C:\Users\Admin\AppData\Local\Temp\cZAFQY1ivxT14o0.exe
PID 64 set thread context of 3472 N/A C:\Users\Admin\AppData\Local\Temp\cZAFQY1ivxT14o0.exe C:\Windows\Explorer.EXE
PID 4824 set thread context of 3472 N/A C:\Windows\SysWOW64\control.exe C:\Windows\Explorer.EXE

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
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\cZAFQY1ivxT14o0.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\control.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\cZAFQY1ivxT14o0.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\cZAFQY1ivxT14o0.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\cZAFQY1ivxT14o0.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\cZAFQY1ivxT14o0.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\cZAFQY1ivxT14o0.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\cZAFQY1ivxT14o0.exe N/A
N/A N/A C:\Windows\SysWOW64\control.exe N/A
N/A N/A C:\Windows\SysWOW64\control.exe N/A
N/A N/A C:\Windows\SysWOW64\control.exe N/A
N/A N/A C:\Windows\SysWOW64\control.exe N/A
N/A N/A C:\Windows\SysWOW64\control.exe N/A
N/A N/A C:\Windows\SysWOW64\control.exe N/A
N/A N/A C:\Windows\SysWOW64\control.exe N/A
N/A N/A C:\Windows\SysWOW64\control.exe N/A
N/A N/A C:\Windows\SysWOW64\control.exe N/A
N/A N/A C:\Windows\SysWOW64\control.exe N/A
N/A N/A C:\Windows\SysWOW64\control.exe N/A
N/A N/A C:\Windows\SysWOW64\control.exe N/A
N/A N/A C:\Windows\SysWOW64\control.exe N/A
N/A N/A C:\Windows\SysWOW64\control.exe N/A
N/A N/A C:\Windows\SysWOW64\control.exe N/A
N/A N/A C:\Windows\SysWOW64\control.exe N/A
N/A N/A C:\Windows\SysWOW64\control.exe N/A
N/A N/A C:\Windows\SysWOW64\control.exe N/A
N/A N/A C:\Windows\SysWOW64\control.exe N/A
N/A N/A C:\Windows\SysWOW64\control.exe N/A
N/A N/A C:\Windows\SysWOW64\control.exe N/A
N/A N/A C:\Windows\SysWOW64\control.exe N/A
N/A N/A C:\Windows\SysWOW64\control.exe N/A
N/A N/A C:\Windows\SysWOW64\control.exe N/A
N/A N/A C:\Windows\SysWOW64\control.exe N/A
N/A N/A C:\Windows\SysWOW64\control.exe N/A
N/A N/A C:\Windows\SysWOW64\control.exe N/A
N/A N/A C:\Windows\SysWOW64\control.exe N/A
N/A N/A C:\Windows\SysWOW64\control.exe N/A
N/A N/A C:\Windows\SysWOW64\control.exe N/A
N/A N/A C:\Windows\SysWOW64\control.exe N/A
N/A N/A C:\Windows\SysWOW64\control.exe N/A
N/A N/A C:\Windows\SysWOW64\control.exe N/A
N/A N/A C:\Windows\SysWOW64\control.exe N/A
N/A N/A C:\Windows\SysWOW64\control.exe N/A
N/A N/A C:\Windows\SysWOW64\control.exe N/A
N/A N/A C:\Windows\SysWOW64\control.exe N/A
N/A N/A C:\Windows\SysWOW64\control.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\cZAFQY1ivxT14o0.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\cZAFQY1ivxT14o0.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\SysWOW64\control.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3656 wrote to memory of 1572 N/A C:\Users\Admin\AppData\Local\Temp\cZAFQY1ivxT14o0.exe C:\Users\Admin\AppData\Local\Temp\cZAFQY1ivxT14o0.exe
PID 3656 wrote to memory of 1572 N/A C:\Users\Admin\AppData\Local\Temp\cZAFQY1ivxT14o0.exe C:\Users\Admin\AppData\Local\Temp\cZAFQY1ivxT14o0.exe
PID 3656 wrote to memory of 1572 N/A C:\Users\Admin\AppData\Local\Temp\cZAFQY1ivxT14o0.exe C:\Users\Admin\AppData\Local\Temp\cZAFQY1ivxT14o0.exe
PID 3656 wrote to memory of 64 N/A C:\Users\Admin\AppData\Local\Temp\cZAFQY1ivxT14o0.exe C:\Users\Admin\AppData\Local\Temp\cZAFQY1ivxT14o0.exe
PID 3656 wrote to memory of 64 N/A C:\Users\Admin\AppData\Local\Temp\cZAFQY1ivxT14o0.exe C:\Users\Admin\AppData\Local\Temp\cZAFQY1ivxT14o0.exe
PID 3656 wrote to memory of 64 N/A C:\Users\Admin\AppData\Local\Temp\cZAFQY1ivxT14o0.exe C:\Users\Admin\AppData\Local\Temp\cZAFQY1ivxT14o0.exe
PID 3656 wrote to memory of 64 N/A C:\Users\Admin\AppData\Local\Temp\cZAFQY1ivxT14o0.exe C:\Users\Admin\AppData\Local\Temp\cZAFQY1ivxT14o0.exe
PID 3656 wrote to memory of 64 N/A C:\Users\Admin\AppData\Local\Temp\cZAFQY1ivxT14o0.exe C:\Users\Admin\AppData\Local\Temp\cZAFQY1ivxT14o0.exe
PID 3656 wrote to memory of 64 N/A C:\Users\Admin\AppData\Local\Temp\cZAFQY1ivxT14o0.exe C:\Users\Admin\AppData\Local\Temp\cZAFQY1ivxT14o0.exe
PID 3472 wrote to memory of 4824 N/A C:\Windows\Explorer.EXE C:\Windows\SysWOW64\control.exe
PID 3472 wrote to memory of 4824 N/A C:\Windows\Explorer.EXE C:\Windows\SysWOW64\control.exe
PID 3472 wrote to memory of 4824 N/A C:\Windows\Explorer.EXE C:\Windows\SysWOW64\control.exe
PID 4824 wrote to memory of 2624 N/A C:\Windows\SysWOW64\control.exe C:\Windows\SysWOW64\cmd.exe
PID 4824 wrote to memory of 2624 N/A C:\Windows\SysWOW64\control.exe C:\Windows\SysWOW64\cmd.exe
PID 4824 wrote to memory of 2624 N/A C:\Windows\SysWOW64\control.exe C:\Windows\SysWOW64\cmd.exe

Processes

C:\Windows\Explorer.EXE

C:\Windows\Explorer.EXE

C:\Users\Admin\AppData\Local\Temp\cZAFQY1ivxT14o0.exe

"C:\Users\Admin\AppData\Local\Temp\cZAFQY1ivxT14o0.exe"

C:\Users\Admin\AppData\Local\Temp\cZAFQY1ivxT14o0.exe

"C:\Users\Admin\AppData\Local\Temp\cZAFQY1ivxT14o0.exe"

C:\Users\Admin\AppData\Local\Temp\cZAFQY1ivxT14o0.exe

"C:\Users\Admin\AppData\Local\Temp\cZAFQY1ivxT14o0.exe"

C:\Windows\SysWOW64\control.exe

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

C:\Windows\SysWOW64\cmd.exe

/c del "C:\Users\Admin\AppData\Local\Temp\cZAFQY1ivxT14o0.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 136.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 154.239.44.20.in-addr.arpa udp
US 8.8.8.8:53 212.20.149.52.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 67.208.201.84.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 43.229.111.52.in-addr.arpa udp
US 8.8.8.8:53 168.36.72.23.in-addr.arpa udp
US 8.8.8.8:53 www.jubtao.com udp
US 8.8.8.8:53 www.fo-abinitio.com udp
US 8.8.8.8:53 www.tombitz.com udp
US 8.8.8.8:53 www.kakaomobility-recruit.com udp
US 76.76.21.61:80 www.kakaomobility-recruit.com tcp
US 8.8.8.8:53 61.21.76.76.in-addr.arpa udp
US 8.8.8.8:53 www.hyswkimjisoo.xyz udp
US 8.8.8.8:53 www.magazinegroup.site udp
US 8.8.8.8:53 www.kekenapeps.com udp
US 8.8.8.8:53 www.treatsbyconquerer.com udp
US 8.8.8.8:53 www.hondenpaleis.com udp
US 8.8.8.8:53 www.ruibaosh.com udp
US 172.67.181.252:80 www.ruibaosh.com tcp
US 8.8.8.8:53 252.181.67.172.in-addr.arpa udp
US 8.8.8.8:53 www.oplexxburn.com udp

Files

memory/3656-0-0x0000000074D0E000-0x0000000074D0F000-memory.dmp

memory/3656-1-0x00000000006E0000-0x0000000000768000-memory.dmp

memory/3656-2-0x0000000074D00000-0x00000000754B0000-memory.dmp

memory/3656-3-0x0000000007C90000-0x0000000008234000-memory.dmp

memory/3656-4-0x0000000007780000-0x0000000007812000-memory.dmp

memory/3656-5-0x0000000074D00000-0x00000000754B0000-memory.dmp

memory/3656-6-0x0000000007C60000-0x0000000007C76000-memory.dmp

memory/3656-7-0x0000000074D0E000-0x0000000074D0F000-memory.dmp

memory/3656-8-0x0000000074D00000-0x00000000754B0000-memory.dmp

memory/3656-9-0x0000000007C80000-0x0000000007C8A000-memory.dmp

memory/3656-10-0x000000000A280000-0x000000000A2EA000-memory.dmp

memory/3656-11-0x000000000A390000-0x000000000A42C000-memory.dmp

memory/3656-12-0x000000000A2F0000-0x000000000A322000-memory.dmp

memory/64-13-0x0000000000400000-0x000000000042B000-memory.dmp

memory/3656-15-0x0000000074D00000-0x00000000754B0000-memory.dmp

memory/64-16-0x0000000001120000-0x000000000146A000-memory.dmp

memory/64-19-0x0000000001100000-0x0000000001111000-memory.dmp

memory/64-18-0x0000000000400000-0x000000000042B000-memory.dmp

memory/3472-20-0x00000000046B0000-0x00000000047E1000-memory.dmp

memory/4824-21-0x0000000000F00000-0x0000000000F27000-memory.dmp

memory/4824-22-0x0000000000F00000-0x0000000000F27000-memory.dmp

memory/4824-23-0x00000000005C0000-0x00000000005EB000-memory.dmp

memory/3472-27-0x00000000084F0000-0x00000000085C5000-memory.dmp

memory/3472-28-0x00000000084F0000-0x00000000085C5000-memory.dmp

memory/3472-30-0x00000000084F0000-0x00000000085C5000-memory.dmp