xworm | ca608f15c34d7526591d75a76d1a29ef03e17c133ef2dfb7dda09be631d0e449

Analysis

max time kernel
55s
max time network
53s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
30-06-2024 20:26

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General

Target

gjruheigerg.exe
Size

84KB
MD5

b5fbb4aec5eaf3f64a592e72ac30a1ab
SHA1

993b36feeb223032ec7a536687cfe37ddf2ffd39
SHA256

ca608f15c34d7526591d75a76d1a29ef03e17c133ef2dfb7dda09be631d0e449
SHA512

8768a68783e11654da0815b574e7e20c3cdaa4b4f710b6d288f9a69082f040177d32b2fdaf34b42239308ea21d4e3fc4319b67145b0f2b8126a4fc7a007dcc53
SSDEEP

1536:Xb5H+OMwTEBrZ5idVjzXGbhpTw6DG6GiyoAOsjJKVV4yAETSAJ0iH:rgG0FkbH2bhpM6NAOsViyylyY

Score

10^/10

xworm execution rat trojan

Malware Config

Extracted

Family

xworm

79.202.250.5:80

Attributes

Install_directory
%Temp%
install_file
discord_autoupdaterconfifm.exe
telegram
https://api.telegram.org/bot7345950584:AAH5ca8n_1S4bD12cZuSsr23SjFGXJYzRk0

Signatures

Detect Xworm Payload 3 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1908-1-0x00000000003A0000-0x00000000003BC000-memory.dmp	family_xworm
C:\Users\Admin\AppData\Local\Temp\discord_autoupdaterconfifm.exe	family_xworm
behavioral1/memory/764-33-0x0000000000380000-0x000000000039C000-memory.dmp	family_xworm

Xworm
Xworm is a remote access trojan written in C#.
trojan rat xworm
Command and Scripting Interpreter: PowerShell 1 TTPs 4 IoCs
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
execution

PowerShell
T1059.001

Processes:

powershell.exepowershell.exepowershell.exepowershell.exe

pid process

2444 powershell.exe
2696 powershell.exe
2700 powershell.exe
2564 powershell.exe
Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

1972 cmd.exe
Executes dropped EXE 1 IoCs

Processes:

discord_autoupdaterconfifm.exe

pid process

764 discord_autoupdaterconfifm.exe
Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.

Processes:

flow ioc

4 ip-api.com
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082
Delays execution with timeout.exe 1 IoCs
evasion

Processes:

timeout.exe

pid process

1536 timeout.exe
Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence execution

Scheduled Task
T1053.005

Processes:

schtasks.exe

pid process

1936 schtasks.exe
Suspicious behavior: EnumeratesProcesses 5 IoCs

Processes:

powershell.exepowershell.exepowershell.exepowershell.exegjruheigerg.exe

pid process

2564 powershell.exe
2444 powershell.exe
2696 powershell.exe
2700 powershell.exe
1908 gjruheigerg.exe

pid	process
2444	powershell.exe
2696	powershell.exe
2700	powershell.exe
2564	powershell.exe

pid	process
1972	cmd.exe

pid	process
764	discord_autoupdaterconfifm.exe

flow	ioc
4	ip-api.com

pid	process
1536	timeout.exe

pid	process
1936	schtasks.exe

pid	process
2564	powershell.exe
2444	powershell.exe
2696	powershell.exe
2700	powershell.exe
1908	gjruheigerg.exe

Suspicious use of AdjustPrivilegeToken 7 IoCs

Processes:

gjruheigerg.exepowershell.exepowershell.exepowershell.exepowershell.exediscord_autoupdaterconfifm.exe

description	pid	process
Token: SeDebugPrivilege	1908	gjruheigerg.exe
Token: SeDebugPrivilege	2564	powershell.exe
Token: SeDebugPrivilege	2444	powershell.exe
Token: SeDebugPrivilege	2696	powershell.exe
Token: SeDebugPrivilege	2700	powershell.exe
Token: SeDebugPrivilege	1908	gjruheigerg.exe
Token: SeDebugPrivilege	764	discord_autoupdaterconfifm.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

gjruheigerg.exe

pid process

1908 gjruheigerg.exe

pid	process
1908	gjruheigerg.exe

Suspicious use of WriteProcessMemory 27 IoCs

Processes:

gjruheigerg.exetaskeng.execmd.exe

description	pid	process	target process
PID 1908 wrote to memory of 2564	1908	gjruheigerg.exe	powershell.exe
PID 1908 wrote to memory of 2564	1908	gjruheigerg.exe	powershell.exe
PID 1908 wrote to memory of 2564	1908	gjruheigerg.exe	powershell.exe
PID 1908 wrote to memory of 2444	1908	gjruheigerg.exe	powershell.exe
PID 1908 wrote to memory of 2444	1908	gjruheigerg.exe	powershell.exe
PID 1908 wrote to memory of 2444	1908	gjruheigerg.exe	powershell.exe
PID 1908 wrote to memory of 2696	1908	gjruheigerg.exe	powershell.exe
PID 1908 wrote to memory of 2696	1908	gjruheigerg.exe	powershell.exe
PID 1908 wrote to memory of 2696	1908	gjruheigerg.exe	powershell.exe
PID 1908 wrote to memory of 2700	1908	gjruheigerg.exe	powershell.exe
PID 1908 wrote to memory of 2700	1908	gjruheigerg.exe	powershell.exe
PID 1908 wrote to memory of 2700	1908	gjruheigerg.exe	powershell.exe
PID 1908 wrote to memory of 1936	1908	gjruheigerg.exe	schtasks.exe
PID 1908 wrote to memory of 1936	1908	gjruheigerg.exe	schtasks.exe
PID 1908 wrote to memory of 1936	1908	gjruheigerg.exe	schtasks.exe
PID 1784 wrote to memory of 764	1784	taskeng.exe	discord_autoupdaterconfifm.exe
PID 1784 wrote to memory of 764	1784	taskeng.exe	discord_autoupdaterconfifm.exe
PID 1784 wrote to memory of 764	1784	taskeng.exe	discord_autoupdaterconfifm.exe
PID 1908 wrote to memory of 324	1908	gjruheigerg.exe	schtasks.exe
PID 1908 wrote to memory of 324	1908	gjruheigerg.exe	schtasks.exe
PID 1908 wrote to memory of 324	1908	gjruheigerg.exe	schtasks.exe
PID 1908 wrote to memory of 1972	1908	gjruheigerg.exe	cmd.exe
PID 1908 wrote to memory of 1972	1908	gjruheigerg.exe	cmd.exe
PID 1908 wrote to memory of 1972	1908	gjruheigerg.exe	cmd.exe
PID 1972 wrote to memory of 1536	1972	cmd.exe	timeout.exe
PID 1972 wrote to memory of 1536	1972	cmd.exe	timeout.exe
PID 1972 wrote to memory of 1536	1972	cmd.exe	timeout.exe

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Users\Admin\AppData\Local\Temp\gjruheigerg.exe
"C:\Users\Admin\AppData\Local\Temp\gjruheigerg.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1908

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\gjruheigerg.exe'
2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2564

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'gjruheigerg.exe'
2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2444

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\discord_autoupdaterconfifm.exe'
2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2696

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'discord_autoupdaterconfifm.exe'
2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2700

C:\Windows\System32\schtasks.exe
"C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "discord_autoupdaterconfifm" /tr "C:\Users\Admin\AppData\Local\Temp\discord_autoupdaterconfifm.exe"
2⤵
- Scheduled Task/Job: Scheduled Task
PID:1936

C:\Windows\System32\schtasks.exe
"C:\Windows\System32\schtasks.exe" /delete /f /tn "discord_autoupdaterconfifm"
2⤵
PID:324

C:\Windows\system32\cmd.exe
cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmpD94F.tmp.bat""
2⤵
- Deletes itself
- Suspicious use of WriteProcessMemory
PID:1972

C:\Windows\system32\timeout.exe
timeout 3
3⤵
- Delays execution with timeout.exe
PID:1536

C:\Windows\system32\taskeng.exe
taskeng.exe {63705E6E-5E92-4DF7-BB3D-BC35A01EE364} S-1-5-21-3627615824-4061627003-3019543961-1000:SCFGBRBT\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:1784

C:\Users\Admin\AppData\Local\Temp\discord_autoupdaterconfifm.exe
C:\Users\Admin\AppData\Local\Temp\discord_autoupdaterconfifm.exe
2⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:764

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads

C:\Users\Admin\AppData\Local\Temp\discord_autoupdaterconfifm.exe
Filesize
84KB

MD5
b5fbb4aec5eaf3f64a592e72ac30a1ab

SHA1
993b36feeb223032ec7a536687cfe37ddf2ffd39

SHA256
ca608f15c34d7526591d75a76d1a29ef03e17c133ef2dfb7dda09be631d0e449

SHA512
8768a68783e11654da0815b574e7e20c3cdaa4b4f710b6d288f9a69082f040177d32b2fdaf34b42239308ea21d4e3fc4319b67145b0f2b8126a4fc7a007dcc53

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpD94F.tmp.bat
Filesize
163B

MD5
2295303fb3b4c18d6bee4211823e1ef5

SHA1
98e3ca90035a7fc624b05b8f90b0c3af0be88925

SHA256
ea217185e4263be780b5c2733ccef0d47baac77d915a12463de70d573d1b74ec

SHA512
02a00cbb483dcbd60f15799acdcacebff9a0387d0a6b0aafcacb04078d4030927d65c4407ae090a835ebf2345379a94d89dd63e4ab82ea31867bea09fc28245b

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\590aee7bdd69b59b.customDestinations-ms
Filesize
7KB

MD5
acdbf99d0df60c1f7e17e7ffe3dc64e8

SHA1
3a32a7583ed3fb9483b17060c98a5c3356bb59c0

SHA256
96272cadd55d02ac599ae459e529e525810f32b9d9aef33fb056a782e4367fdf

SHA512
db9d2df1a12675f6531716af3af50114eb17e02a38c68c695ce5194a0a4818c64f60955e5f9694cba1ef99752c3377733f6cd7c1d71c658dde12468a2b25265a

Download Submit
memory/764-33-0x0000000000380000-0x000000000039C000-memory.dmp

Filesize
112KB

Download
memory/1908-28-0x000007FEF5043000-0x000007FEF5044000-memory.dmp

Filesize
4KB

Download
memory/1908-0-0x000007FEF5043000-0x000007FEF5044000-memory.dmp

Filesize
4KB

Download
memory/1908-29-0x000007FEF5040000-0x000007FEF5A2C000-memory.dmp

Filesize
9.9MB

Download
memory/1908-2-0x000007FEF5040000-0x000007FEF5A2C000-memory.dmp

Filesize
9.9MB

Download
memory/1908-1-0x00000000003A0000-0x00000000003BC000-memory.dmp

Filesize
112KB

Download
memory/1908-42-0x000007FEF5040000-0x000007FEF5A2C000-memory.dmp

Filesize
9.9MB

Download
memory/2444-15-0x000000001B5A0000-0x000000001B882000-memory.dmp

Filesize
2.9MB

Download
memory/2444-16-0x0000000002760000-0x0000000002768000-memory.dmp

Filesize
32KB

Download
memory/2564-9-0x00000000028E0000-0x00000000028E8000-memory.dmp

Filesize
32KB

Download
memory/2564-8-0x000000001B600000-0x000000001B8E2000-memory.dmp

Filesize
2.9MB

Download
memory/2564-7-0x0000000002810000-0x0000000002890000-memory.dmp

Filesize
512KB

Download