xworm | 8096aee7e1e28ccb7c2ec7197ccbb48e55fd40c0c23026a6bd92da29ebc5df31

General

Target

8096aee7e1e28ccb7c2ec7197ccbb48e55fd40c0c23026a6bd92da29ebc5df31.exe
Size

78KB
MD5

096efcc0dc46023c41d5f3318e25da60
SHA1

dabd1b0b4d3e2b220406c2a9770e321d33b32969
SHA256

8096aee7e1e28ccb7c2ec7197ccbb48e55fd40c0c23026a6bd92da29ebc5df31
SHA512

826e7340e52a8e69bc59dac7e455d1bc00dd0ca7c3af3ea89a97b0f6725c5ef1c923d34024f0919002ff86d75d982b30e84089edf1c77c7374e23a7e379853f2
SSDEEP

1536:FjP7HLIdnVw7pOGFAvOb55YxKBBG06HxOufL/ZbJ/wIn2w:FjD0a7pOGFAvOb56KBc5xOWL/Zl/5

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

C2

values-painted.gl.at.ply.gg:12784

Attributes

Install_directory
%AppData%
install_file
XClient.exe

Signatures

Detect Xworm Payload 4 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1916-1-0x0000000000AC0000-0x0000000000ADA000-memory.dmp	family_xworm
C:\Users\Admin\AppData\Roaming\XClient.exe	family_xworm
behavioral1/memory/984-32-0x0000000001270000-0x000000000128A000-memory.dmp	family_xworm
behavioral1/memory/1492-34-0x0000000000190000-0x00000000001AA000-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

2892 powershell.exe
2264 powershell.exe
2512 powershell.exe
2504 powershell.exe
Executes dropped EXE 2 IoCs

Processes:

XClient.exeXClient.exe

pid process

984 XClient.exe
1492 XClient.exe

pid	process
984	XClient.exe
1492	XClient.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

8096aee7e1e28ccb7c2ec7197ccbb48e55fd40c0c23026a6bd92da29ebc5df31.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000\Software\Microsoft\Windows\CurrentVersion\Run\XClient = "C:\\Users\\Admin\\AppData\\Roaming\\XClient.exe"	8096aee7e1e28ccb7c2ec7197ccbb48e55fd40c0c23026a6bd92da29ebc5df31.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

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

System Information Discovery
T1082
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task/Job
T1053

Processes:

schtasks.exe

pid process

2852 schtasks.exe

flow	ioc
2	ip-api.com

pid	process
2852	schtasks.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

Processes:

powershell.exepowershell.exepowershell.exepowershell.exe8096aee7e1e28ccb7c2ec7197ccbb48e55fd40c0c23026a6bd92da29ebc5df31.exe

pid	process
2892	powershell.exe
2264	powershell.exe
2512	powershell.exe
2504	powershell.exe
1916	8096aee7e1e28ccb7c2ec7197ccbb48e55fd40c0c23026a6bd92da29ebc5df31.exe

Suspicious use of AdjustPrivilegeToken 8 IoCs

Processes:

8096aee7e1e28ccb7c2ec7197ccbb48e55fd40c0c23026a6bd92da29ebc5df31.exepowershell.exepowershell.exepowershell.exepowershell.exeXClient.exeXClient.exe

description	pid	process
Token: SeDebugPrivilege	1916	8096aee7e1e28ccb7c2ec7197ccbb48e55fd40c0c23026a6bd92da29ebc5df31.exe
Token: SeDebugPrivilege	2892	powershell.exe
Token: SeDebugPrivilege	2264	powershell.exe
Token: SeDebugPrivilege	2512	powershell.exe
Token: SeDebugPrivilege	2504	powershell.exe
Token: SeDebugPrivilege	1916	8096aee7e1e28ccb7c2ec7197ccbb48e55fd40c0c23026a6bd92da29ebc5df31.exe
Token: SeDebugPrivilege	984	XClient.exe
Token: SeDebugPrivilege	1492	XClient.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

8096aee7e1e28ccb7c2ec7197ccbb48e55fd40c0c23026a6bd92da29ebc5df31.exe

pid process

1916 8096aee7e1e28ccb7c2ec7197ccbb48e55fd40c0c23026a6bd92da29ebc5df31.exe

pid	process
1916	8096aee7e1e28ccb7c2ec7197ccbb48e55fd40c0c23026a6bd92da29ebc5df31.exe

Suspicious use of WriteProcessMemory 21 IoCs

Processes:

8096aee7e1e28ccb7c2ec7197ccbb48e55fd40c0c23026a6bd92da29ebc5df31.exetaskeng.exe

description	pid	process	target process
PID 1916 wrote to memory of 2892	1916	8096aee7e1e28ccb7c2ec7197ccbb48e55fd40c0c23026a6bd92da29ebc5df31.exe	powershell.exe
PID 1916 wrote to memory of 2892	1916	8096aee7e1e28ccb7c2ec7197ccbb48e55fd40c0c23026a6bd92da29ebc5df31.exe	powershell.exe
PID 1916 wrote to memory of 2892	1916	8096aee7e1e28ccb7c2ec7197ccbb48e55fd40c0c23026a6bd92da29ebc5df31.exe	powershell.exe
PID 1916 wrote to memory of 2264	1916	8096aee7e1e28ccb7c2ec7197ccbb48e55fd40c0c23026a6bd92da29ebc5df31.exe	powershell.exe
PID 1916 wrote to memory of 2264	1916	8096aee7e1e28ccb7c2ec7197ccbb48e55fd40c0c23026a6bd92da29ebc5df31.exe	powershell.exe
PID 1916 wrote to memory of 2264	1916	8096aee7e1e28ccb7c2ec7197ccbb48e55fd40c0c23026a6bd92da29ebc5df31.exe	powershell.exe
PID 1916 wrote to memory of 2512	1916	8096aee7e1e28ccb7c2ec7197ccbb48e55fd40c0c23026a6bd92da29ebc5df31.exe	powershell.exe
PID 1916 wrote to memory of 2512	1916	8096aee7e1e28ccb7c2ec7197ccbb48e55fd40c0c23026a6bd92da29ebc5df31.exe	powershell.exe
PID 1916 wrote to memory of 2512	1916	8096aee7e1e28ccb7c2ec7197ccbb48e55fd40c0c23026a6bd92da29ebc5df31.exe	powershell.exe
PID 1916 wrote to memory of 2504	1916	8096aee7e1e28ccb7c2ec7197ccbb48e55fd40c0c23026a6bd92da29ebc5df31.exe	powershell.exe
PID 1916 wrote to memory of 2504	1916	8096aee7e1e28ccb7c2ec7197ccbb48e55fd40c0c23026a6bd92da29ebc5df31.exe	powershell.exe
PID 1916 wrote to memory of 2504	1916	8096aee7e1e28ccb7c2ec7197ccbb48e55fd40c0c23026a6bd92da29ebc5df31.exe	powershell.exe
PID 1916 wrote to memory of 2852	1916	8096aee7e1e28ccb7c2ec7197ccbb48e55fd40c0c23026a6bd92da29ebc5df31.exe	schtasks.exe
PID 1916 wrote to memory of 2852	1916	8096aee7e1e28ccb7c2ec7197ccbb48e55fd40c0c23026a6bd92da29ebc5df31.exe	schtasks.exe
PID 1916 wrote to memory of 2852	1916	8096aee7e1e28ccb7c2ec7197ccbb48e55fd40c0c23026a6bd92da29ebc5df31.exe	schtasks.exe
PID 668 wrote to memory of 984	668	taskeng.exe	XClient.exe
PID 668 wrote to memory of 984	668	taskeng.exe	XClient.exe
PID 668 wrote to memory of 984	668	taskeng.exe	XClient.exe
PID 668 wrote to memory of 1492	668	taskeng.exe	XClient.exe
PID 668 wrote to memory of 1492	668	taskeng.exe	XClient.exe
PID 668 wrote to memory of 1492	668	taskeng.exe	XClient.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\8096aee7e1e28ccb7c2ec7197ccbb48e55fd40c0c23026a6bd92da29ebc5df31.exe
"C:\Users\Admin\AppData\Local\Temp\8096aee7e1e28ccb7c2ec7197ccbb48e55fd40c0c23026a6bd92da29ebc5df31.exe"
1⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1916

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\8096aee7e1e28ccb7c2ec7197ccbb48e55fd40c0c23026a6bd92da29ebc5df31.exe'
2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2892

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess '8096aee7e1e28ccb7c2ec7197ccbb48e55fd40c0c23026a6bd92da29ebc5df31.exe'
2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2264

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\XClient.exe'
2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2512

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'XClient.exe'
2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2504

C:\Windows\System32\schtasks.exe
"C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "XClient" /tr "C:\Users\Admin\AppData\Roaming\XClient.exe"
2⤵
- Creates scheduled task(s)
PID:2852

C:\Windows\system32\taskeng.exe
taskeng.exe {993E0EE3-CBF7-41A7-89AD-1E1704253F72} S-1-5-21-2737914667-933161113-3798636211-1000:PUMARTNR\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:668

C:\Users\Admin\AppData\Roaming\XClient.exe
C:\Users\Admin\AppData\Roaming\XClient.exe
2⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:984

C:\Users\Admin\AppData\Roaming\XClient.exe
C:\Users\Admin\AppData\Roaming\XClient.exe
2⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:1492

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

Scheduled Task/Job

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

Scheduled Task/Job

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

Scheduled Task/Job

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
7KB

MD5
cb3457e6803f8407423c9eca00dea73d

SHA1
645acc305832a5741d3330d1e4d133f30e317d12

SHA256
2e3255e8ab151c92452e08e10450b7a1b43e96815753266cc7944470e93c63d1

SHA512
597ba20c9daee3b52934085ac1e24f68923f6505af20cde2b0d2ba1e3e2cae4569f1ba38f98cb140b84d685700ca79b6e82ae84fe5e7ca8017d25a9ab4ac12f0

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

Filesize
78KB

MD5
096efcc0dc46023c41d5f3318e25da60

SHA1
dabd1b0b4d3e2b220406c2a9770e321d33b32969

SHA256
8096aee7e1e28ccb7c2ec7197ccbb48e55fd40c0c23026a6bd92da29ebc5df31

SHA512
826e7340e52a8e69bc59dac7e455d1bc00dd0ca7c3af3ea89a97b0f6725c5ef1c923d34024f0919002ff86d75d982b30e84089edf1c77c7374e23a7e379853f2

Download Submit
memory/984-32-0x0000000001270000-0x000000000128A000-memory.dmp

Filesize
104KB

Download
memory/1492-34-0x0000000000190000-0x00000000001AA000-memory.dmp

Filesize
104KB

Download
memory/1916-28-0x000007FEF5FB0000-0x000007FEF699C000-memory.dmp

Filesize
9.9MB

Download
memory/1916-1-0x0000000000AC0000-0x0000000000ADA000-memory.dmp

Filesize
104KB

Download
memory/1916-2-0x000007FEF5FB0000-0x000007FEF699C000-memory.dmp

Filesize
9.9MB

Download
memory/1916-0-0x000007FEF5FB3000-0x000007FEF5FB4000-memory.dmp

Filesize
4KB

Download
memory/1916-27-0x000007FEF5FB3000-0x000007FEF5FB4000-memory.dmp

Filesize
4KB

Download
memory/2264-14-0x000000001B830000-0x000000001BB12000-memory.dmp

Filesize
2.9MB

Download
memory/2264-15-0x0000000001E60000-0x0000000001E68000-memory.dmp

Filesize
32KB

Download
memory/2892-8-0x00000000027E0000-0x00000000027E8000-memory.dmp

Filesize
32KB

Download
memory/2892-7-0x000000001B750000-0x000000001BA32000-memory.dmp

Filesize
2.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads