xworm | 7eb3f17102a94b55b2a95688d799bee21e55ad67c1ff6580c6968852705ace95

General

Target

XClient.exe
Size

173KB
MD5

e53cfc4155bf01620aaf3ef5041116f2
SHA1

50b4d70680945e7e5806de76b47d56d1fc2af985
SHA256

7eb3f17102a94b55b2a95688d799bee21e55ad67c1ff6580c6968852705ace95
SHA512

63babf167c3ebdebf672213d68a441e3973009f52dc34d0f6bec880f8a9712669c223da43f0cd066da0e5495e885f66f5d2a366f918c07bb97b22fe6c8d58232
SSDEEP

3072:xIeFPAg95lvc+b6iTPXGOXx2Bz65/M6If+3Js+3JFkKeTns:xqg7Xbd2xBt25

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

C2

advertise-located.gl.at.ply.gg:54921

19.ip.gl.ply.gg:54921

Attributes

Install_directory
%AppData%
install_file
cmd.exe

Signatures

Detect Xworm Payload 2 IoCs

Processes:

resource	yara_rule
behavioral2/memory/1192-0-0x00000000001E0000-0x0000000000212000-memory.dmp	family_xworm
C:\Users\Admin\AppData\Roaming\cmd.exe	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

1648 powershell.exe
680 powershell.exe
3636 powershell.exe
3968 powershell.exe
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.

Query Registry
T1012

System Information Discovery
T1082

Processes:

XClient.exe

description ioc process

Key value queried \REGISTRY\USER\S-1-5-21-711569230-3659488422-571408806-1000\Control Panel\International\Geo\Nation XClient.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-711569230-3659488422-571408806-1000\Control Panel\International\Geo\Nation	XClient.exe

Drops startup file 2 IoCs

Processes:

XClient.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\cmd.lnk	XClient.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\cmd.lnk	XClient.exe

Executes dropped EXE 2 IoCs

Processes:

cmd.execmd.exe

pid process

3916 cmd.exe
4936 cmd.exe

pid	process
3916	cmd.exe
4936	cmd.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

XClient.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-711569230-3659488422-571408806-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cmd = "C:\\Users\\Admin\\AppData\\Roaming\\cmd.exe"	XClient.exe

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

4068 schtasks.exe

pid	process
4068	schtasks.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

Processes:

powershell.exepowershell.exepowershell.exepowershell.exeXClient.exe

pid	process
1648	powershell.exe
1648	powershell.exe
680	powershell.exe
680	powershell.exe
3636	powershell.exe
3636	powershell.exe
3968	powershell.exe
3968	powershell.exe
1192	XClient.exe

Suspicious use of AdjustPrivilegeToken 8 IoCs

Processes:

XClient.exepowershell.exepowershell.exepowershell.exepowershell.execmd.execmd.exe

description	pid	process
Token: SeDebugPrivilege	1192	XClient.exe
Token: SeDebugPrivilege	1648	powershell.exe
Token: SeDebugPrivilege	680	powershell.exe
Token: SeDebugPrivilege	3636	powershell.exe
Token: SeDebugPrivilege	3968	powershell.exe
Token: SeDebugPrivilege	1192	XClient.exe
Token: SeDebugPrivilege	3916	cmd.exe
Token: SeDebugPrivilege	4936	cmd.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

XClient.exe

pid process

1192 XClient.exe

pid	process
1192	XClient.exe

Suspicious use of WriteProcessMemory 10 IoCs

Processes:

XClient.exe

description	pid	process	target process
PID 1192 wrote to memory of 1648	1192	XClient.exe	powershell.exe
PID 1192 wrote to memory of 1648	1192	XClient.exe	powershell.exe
PID 1192 wrote to memory of 680	1192	XClient.exe	powershell.exe
PID 1192 wrote to memory of 680	1192	XClient.exe	powershell.exe
PID 1192 wrote to memory of 3636	1192	XClient.exe	powershell.exe
PID 1192 wrote to memory of 3636	1192	XClient.exe	powershell.exe
PID 1192 wrote to memory of 3968	1192	XClient.exe	powershell.exe
PID 1192 wrote to memory of 3968	1192	XClient.exe	powershell.exe
PID 1192 wrote to memory of 4068	1192	XClient.exe	schtasks.exe
PID 1192 wrote to memory of 4068	1192	XClient.exe	schtasks.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\XClient.exe
"C:\Users\Admin\AppData\Local\Temp\XClient.exe"
1⤵
- Checks computer location settings
- Drops startup file
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1192

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\XClient.exe'
2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1648

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:680

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\cmd.exe'
2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3636

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'cmd.exe'
2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3968

C:\Windows\System32\schtasks.exe
"C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "cmd" /tr "C:\Users\Admin\AppData\Roaming\cmd.exe"
2⤵
- Creates scheduled task(s)
PID:4068

C:\Users\Admin\AppData\Roaming\cmd.exe
C:\Users\Admin\AppData\Roaming\cmd.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:3916

C:\Users\Admin\AppData\Roaming\cmd.exe
C:\Users\Admin\AppData\Roaming\cmd.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:4936

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

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\cmd.exe.log
Filesize
654B

MD5
2ff39f6c7249774be85fd60a8f9a245e

SHA1
684ff36b31aedc1e587c8496c02722c6698c1c4e

SHA256
e1b91642d85d98124a6a31f710e137ab7fd90dec30e74a05ab7fcf3b7887dced

SHA512
1d7e8b92ef4afd463d62cfa7e8b9d1799db5bf2a263d3cd7840df2e0a1323d24eb595b5f8eb615c6cb15f9e3a7b4fc99f8dd6a3d34479222e966ec708998aed1

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log
Filesize
2KB

MD5
d85ba6ff808d9e5444a4b369f5bc2730

SHA1
31aa9d96590fff6981b315e0b391b575e4c0804a

SHA256
84739c608a73509419748e4e20e6cc4e1846056c3fe1929a8300d5a1a488202f

SHA512
8c414eb55b45212af385accc16d9d562adba2123583ce70d22b91161fe878683845512a78f04dedd4ea98ed9b174dbfa98cf696370598ad8e6fbd1e714f1f249

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
Filesize
944B

MD5
6d42b6da621e8df5674e26b799c8e2aa

SHA1
ab3ce1327ea1eeedb987ec823d5e0cb146bafa48

SHA256
5ab6a1726f425c6d0158f55eb8d81754ddedd51e651aa0a899a29b7a58619c4c

SHA512
53faffbda8a835bc1143e894c118c15901a5fd09cfc2224dd2f754c06dc794897315049a579b9a8382d4564f071576045aaaf824019b7139d939152dca38ce29

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
Filesize
944B

MD5
ba169f4dcbbf147fe78ef0061a95e83b

SHA1
92a571a6eef49fff666e0f62a3545bcd1cdcda67

SHA256
5ef1421e19fde4bc03cd825dd7d6c0e7863f85fd8f0aa4a4d4f8d555dc7606d1

SHA512
8d2e5e552210dcda684682538bc964fdd8a8ff5b24cc2cc8af813729f0202191f98eb42d38d2355df17ae620fe401aad6ceaedaed3b112fdacd32485a3a0c07c

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
Filesize
944B

MD5
8e36164c76778c19637405adc15c138d

SHA1
5a84b55368cc3c58c628aef578b658fede2a27f4

SHA256
bc9323059bc4e6793598b39d942be6720745037ded472e084f2b2b4b60d07f87

SHA512
d2dade91b8654b52857af12addc756817910463d5cd366fe9a13d6b23c3f2024ee2603b094bc03815b5f0f28891142d914aa65950e8a073961a4a5a312c25ff4

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_n4zilcat.n1k.ps1
Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Roaming\cmd.exe
Filesize
173KB

MD5
e53cfc4155bf01620aaf3ef5041116f2

SHA1
50b4d70680945e7e5806de76b47d56d1fc2af985

SHA256
7eb3f17102a94b55b2a95688d799bee21e55ad67c1ff6580c6968852705ace95

SHA512
63babf167c3ebdebf672213d68a441e3973009f52dc34d0f6bec880f8a9712669c223da43f0cd066da0e5495e885f66f5d2a366f918c07bb97b22fe6c8d58232

Download Submit
memory/1192-56-0x00007FFBD7160000-0x00007FFBD7C21000-memory.dmp

Filesize
10.8MB

Download
memory/1192-0-0x00000000001E0000-0x0000000000212000-memory.dmp

Filesize
200KB

Download
memory/1192-57-0x000000001B6F0000-0x000000001B6FC000-memory.dmp

Filesize
48KB

Download
memory/1192-58-0x00007FFBD7163000-0x00007FFBD7165000-memory.dmp

Filesize
8KB

Download
memory/1192-59-0x00007FFBD7160000-0x00007FFBD7C21000-memory.dmp

Filesize
10.8MB

Download
memory/1192-1-0x00007FFBD7163000-0x00007FFBD7165000-memory.dmp

Filesize
8KB

Download
memory/1648-17-0x00007FFBD7160000-0x00007FFBD7C21000-memory.dmp

Filesize
10.8MB

Download
memory/1648-16-0x00007FFBD7160000-0x00007FFBD7C21000-memory.dmp

Filesize
10.8MB

Download
memory/1648-13-0x00007FFBD7160000-0x00007FFBD7C21000-memory.dmp

Filesize
10.8MB

Download
memory/1648-12-0x00007FFBD7160000-0x00007FFBD7C21000-memory.dmp

Filesize
10.8MB

Download
memory/1648-7-0x000002AF67770000-0x000002AF67792000-memory.dmp

Filesize
136KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads