xworm | 153825af8babb75361f4af359bfdd5e95cbdc7f263db5c4e70ac1da8f36bc564

Analysis

max time kernel
133s
max time network
150s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
06/03/2025, 00:02

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General

Target

ST8XO_ExodusInject.exe
Size

227KB
MD5

38b7704d2b199559ada166401f1d51c1
SHA1

3376eec35cd4616ba8127b976a8667e7a0aac87d
SHA256

153825af8babb75361f4af359bfdd5e95cbdc7f263db5c4e70ac1da8f36bc564
SHA512

07b828073c8f80c5498501c8f64decb5effa702c8bc3d60a2f7d5de36d493b469cbbf413fb0c92c0aadd6ee139bfb75f3b9e936230212d42e57d2ec5671e9b27
SSDEEP

3072:iBIVzZQgudhV3mypQgbNjcEHBAnpK37nXY8q004Q78ePsi74tyJhbgKL/VoilIBS:Ur3mypQX8mOeP/9/VtLGH+8l

Score

10^/10

xworm execution rat trojan

Malware Config

Extracted

Family

xworm

Version

5.0

137.184.74.73:5000

Mutex

Y2rnj2CSRObOXXLb

Attributes

Install_directory
%ProgramData%
install_file
System.exe

aes.plain

Signatures

Detect Xworm Payload 1 IoCs

resource	yara_rule
behavioral1/memory/2304-30-0x0000000000180000-0x000000000018E000-memory.dmp	family_xworm

Xworm
Xworm is a remote access trojan written in C#.
trojan rat xworm
Xworm family
xworm

Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
2968	powershell.exe
1348	powershell.exe

Deletes itself 1 IoCs

pid	Process
1044	cmd.exe

Drops startup file 2 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\System.lnk	AggregatorHost.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\System.lnk	AggregatorHost.exe

Executes dropped EXE 4 IoCs

pid	Process
2304	AggregatorHost.exe
2416	System.exe
1804	System.exe
1512	System.exe

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

defense_evasion

pid	Process
1272	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

pid	Process
2140	schtasks.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1348	powershell.exe
2968	powershell.exe

Suspicious use of AdjustPrivilegeToken 11 IoCs

description	pid	Process
Token: SeDebugPrivilege	2136	ST8XO_ExodusInject.exe
Token: SeBackupPrivilege	2936	vssvc.exe
Token: SeRestorePrivilege	2936	vssvc.exe
Token: SeAuditPrivilege	2936	vssvc.exe
Token: SeDebugPrivilege	1348	powershell.exe
Token: SeDebugPrivilege	2968	powershell.exe
Token: SeDebugPrivilege	2304	AggregatorHost.exe
Token: SeDebugPrivilege	2304	AggregatorHost.exe
Token: SeDebugPrivilege	2416	System.exe
Token: SeDebugPrivilege	1804	System.exe
Token: SeDebugPrivilege	1512	System.exe

Suspicious use of WriteProcessMemory 27 IoCs

description	pid	Process	procid_target
PID 2136 wrote to memory of 1348	2136	ST8XO_ExodusInject.exe	35
PID 2136 wrote to memory of 1348	2136	ST8XO_ExodusInject.exe	35
PID 2136 wrote to memory of 1348	2136	ST8XO_ExodusInject.exe	35
PID 2136 wrote to memory of 2968	2136	ST8XO_ExodusInject.exe	37
PID 2136 wrote to memory of 2968	2136	ST8XO_ExodusInject.exe	37
PID 2136 wrote to memory of 2968	2136	ST8XO_ExodusInject.exe	37
PID 2136 wrote to memory of 1044	2136	ST8XO_ExodusInject.exe	40
PID 2136 wrote to memory of 1044	2136	ST8XO_ExodusInject.exe	40
PID 2136 wrote to memory of 1044	2136	ST8XO_ExodusInject.exe	40
PID 1044 wrote to memory of 1272	1044	cmd.exe	42
PID 1044 wrote to memory of 1272	1044	cmd.exe	42
PID 1044 wrote to memory of 1272	1044	cmd.exe	42
PID 2252 wrote to memory of 2304	2252	taskeng.exe	43
PID 2252 wrote to memory of 2304	2252	taskeng.exe	43
PID 2252 wrote to memory of 2304	2252	taskeng.exe	43
PID 2304 wrote to memory of 2140	2304	AggregatorHost.exe	44
PID 2304 wrote to memory of 2140	2304	AggregatorHost.exe	44
PID 2304 wrote to memory of 2140	2304	AggregatorHost.exe	44
PID 2252 wrote to memory of 2416	2252	taskeng.exe	46
PID 2252 wrote to memory of 2416	2252	taskeng.exe	46
PID 2252 wrote to memory of 2416	2252	taskeng.exe	46
PID 2252 wrote to memory of 1804	2252	taskeng.exe	47
PID 2252 wrote to memory of 1804	2252	taskeng.exe	47
PID 2252 wrote to memory of 1804	2252	taskeng.exe	47
PID 2252 wrote to memory of 1512	2252	taskeng.exe	48
PID 2252 wrote to memory of 1512	2252	taskeng.exe	48
PID 2252 wrote to memory of 1512	2252	taskeng.exe	48

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
Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
ransomware

C:\Users\Admin\AppData\Local\Temp\ST8XO_ExodusInject.exe
"C:\Users\Admin\AppData\Local\Temp\ST8XO_ExodusInject.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2136
- 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\Roaming\AggregatorHost.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1348
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'AggregatorHost.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2968
- C:\Windows\system32\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmpB76.tmp.bat""
  2⤵
  - Deletes itself
  - Suspicious use of WriteProcessMemory
  PID:1044
- - C:\Windows\system32\timeout.exe
    timeout 3
    3⤵
    - Delays execution with timeout.exe
    PID:1272

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2936

C:\Windows\system32\taskeng.exe
taskeng.exe {7D652602-E127-4E67-90DD-D456C7FAFDFB} S-1-5-21-2039016743-699959520-214465309-1000:PIDEURYY\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:2252
- C:\Users\Admin\AppData\Roaming\AggregatorHost.exe
  C:\Users\Admin\AppData\Roaming\AggregatorHost.exe
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2304
- - C:\Windows\System32\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "System" /tr "C:\ProgramData\System.exe"
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:2140
- C:\ProgramData\System.exe
  C:\ProgramData\System.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:2416
- C:\ProgramData\System.exe
  C:\ProgramData\System.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:1804
- C:\ProgramData\System.exe
  C:\ProgramData\System.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:1512

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpB76.tmp.bat

Filesize
169B

MD5
d5d612f39da3ae9ecedc748536616b2c

SHA1
d6516eaacd8bb0e58a347730ce60b1e2c5960877

SHA256
65f277162f7ebb6c72fa3cec54469740854f86df7fbe8c7f07a70a04322ebf11

SHA512
1b578c45984388b024303fb19774ead85ab642000f8ad39a500d3165b4af7ed5ab8a75aff2bf766182ca2ec215b98a59d109b8bda9e7c811cb7da9debdaaead9

Download Submit
C:\Users\Admin\AppData\Roaming\AggregatorHost.exe

Filesize
227KB

MD5
38b7704d2b199559ada166401f1d51c1

SHA1
3376eec35cd4616ba8127b976a8667e7a0aac87d

SHA256
153825af8babb75361f4af359bfdd5e95cbdc7f263db5c4e70ac1da8f36bc564

SHA512
07b828073c8f80c5498501c8f64decb5effa702c8bc3d60a2f7d5de36d493b469cbbf413fb0c92c0aadd6ee139bfb75f3b9e936230212d42e57d2ec5671e9b27

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

Filesize
7KB

MD5
83873205a3822de85236869a118eda00

SHA1
5dbf1940e5b421b7de88ada507041f07e3e380c1

SHA256
2d7c8b365eefdc632e8f342a6a73f9378b7c9af2b417d3898316a3719bbcb57c

SHA512
4a43ae9d35bfeabaf7c9d4f79b1cd463d3b6c89a1df3856455ad33b15200d10e91c3b030c7ce2fa693ef5fc423a859cdf8af53be828236ee772da8869adf6352

Download Submit
memory/1348-7-0x0000000001F10000-0x0000000001F18000-memory.dmp

Filesize
32KB

Download
memory/1348-6-0x000000001B540000-0x000000001B822000-memory.dmp

Filesize
2.9MB

Download
memory/2136-0-0x000007FEF5593000-0x000007FEF5594000-memory.dmp

Filesize
4KB

Download
memory/2136-25-0x000007FEF5590000-0x000007FEF5F7C000-memory.dmp

Filesize
9.9MB

Download
memory/2136-1-0x0000000000E90000-0x0000000000ED0000-memory.dmp

Filesize
256KB

Download
memory/2136-40-0x000007FEF5590000-0x000007FEF5F7C000-memory.dmp

Filesize
9.9MB

Download
memory/2304-29-0x00000000008D0000-0x0000000000910000-memory.dmp

Filesize
256KB

Download
memory/2304-30-0x0000000000180000-0x000000000018E000-memory.dmp

Filesize
56KB

Download
memory/2416-39-0x0000000001160000-0x00000000011A0000-memory.dmp

Filesize
256KB

Download
memory/2968-13-0x000000001B5C0000-0x000000001B8A2000-memory.dmp

Filesize
2.9MB

Download
memory/2968-14-0x00000000029A0000-0x00000000029A8000-memory.dmp

Filesize
32KB

Download