xworm | b472f0b933ca3b23811e2a0ee38ee7fe6b09160e0c3a44cac7a279558ab5abba

General

Target

b472f0b933ca3b23811e2a0ee38ee7fe6b09160e0c3a44cac7a279558ab5abbaN.exe
Size

74KB
MD5

08a417a5e6e37956a220c44c99865c40
SHA1

8b4adb379ca775611515c786649dbd8b53bf5023
SHA256

b472f0b933ca3b23811e2a0ee38ee7fe6b09160e0c3a44cac7a279558ab5abba
SHA512

1bd4db7b7b42a8beed9ae31f567382ea2f08f7bd375ef77972321a50d7bfbfe4ad6827a261ba0391519978e1b68385109d8b1c181c75b11791bd3858924fef92
SSDEEP

1536:H3CAXGCBqu/gk03POhWoMFznFuM9FEpP4+bHgyOlCq3E6NfVO6X1yTv5Jxuit:XqCl02KziA+bAVZfVO6XQv/kK

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

C2

127.0.0.1:42728

23.ip.gl.ply.gg:42728

Attributes

Install_directory
%AppData%
install_file
XClient.exe

Signatures

Detect Xworm Payload 4 IoCs

resource	yara_rule
behavioral1/memory/2060-1-0x00000000001B0000-0x00000000001C8000-memory.dmp	family_xworm
behavioral1/files/0x000b000000012238-32.dat	family_xworm
behavioral1/memory/1888-34-0x0000000000080000-0x0000000000098000-memory.dmp	family_xworm
behavioral1/memory/2260-36-0x0000000000350000-0x0000000000368000-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 4 IoCs

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

execution

PowerShell

T1059.001

pid	Process
2920	powershell.exe
2900	powershell.exe
2156	powershell.exe
2888	powershell.exe

Executes dropped EXE 2 IoCs

pid	Process
1888	XClient.exe
2260	XClient.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Windows\CurrentVersion\Run\XClient = "C:\\Users\\Admin\\AppData\\Roaming\\XClient.exe"	b472f0b933ca3b23811e2a0ee38ee7fe6b09160e0c3a44cac7a279558ab5abbaN.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

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
2208	schtasks.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
2156	powershell.exe
2888	powershell.exe
2920	powershell.exe
2900	powershell.exe
2060	b472f0b933ca3b23811e2a0ee38ee7fe6b09160e0c3a44cac7a279558ab5abbaN.exe

Suspicious use of AdjustPrivilegeToken 8 IoCs

description	pid	Process
Token: SeDebugPrivilege	2060	b472f0b933ca3b23811e2a0ee38ee7fe6b09160e0c3a44cac7a279558ab5abbaN.exe
Token: SeDebugPrivilege	2156	powershell.exe
Token: SeDebugPrivilege	2888	powershell.exe
Token: SeDebugPrivilege	2920	powershell.exe
Token: SeDebugPrivilege	2900	powershell.exe
Token: SeDebugPrivilege	2060	b472f0b933ca3b23811e2a0ee38ee7fe6b09160e0c3a44cac7a279558ab5abbaN.exe
Token: SeDebugPrivilege	1888	XClient.exe
Token: SeDebugPrivilege	2260	XClient.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2060	b472f0b933ca3b23811e2a0ee38ee7fe6b09160e0c3a44cac7a279558ab5abbaN.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 2060 wrote to memory of 2156	2060	b472f0b933ca3b23811e2a0ee38ee7fe6b09160e0c3a44cac7a279558ab5abbaN.exe	29
PID 2060 wrote to memory of 2156	2060	b472f0b933ca3b23811e2a0ee38ee7fe6b09160e0c3a44cac7a279558ab5abbaN.exe	29
PID 2060 wrote to memory of 2156	2060	b472f0b933ca3b23811e2a0ee38ee7fe6b09160e0c3a44cac7a279558ab5abbaN.exe	29
PID 2060 wrote to memory of 2888	2060	b472f0b933ca3b23811e2a0ee38ee7fe6b09160e0c3a44cac7a279558ab5abbaN.exe	31
PID 2060 wrote to memory of 2888	2060	b472f0b933ca3b23811e2a0ee38ee7fe6b09160e0c3a44cac7a279558ab5abbaN.exe	31
PID 2060 wrote to memory of 2888	2060	b472f0b933ca3b23811e2a0ee38ee7fe6b09160e0c3a44cac7a279558ab5abbaN.exe	31
PID 2060 wrote to memory of 2920	2060	b472f0b933ca3b23811e2a0ee38ee7fe6b09160e0c3a44cac7a279558ab5abbaN.exe	33
PID 2060 wrote to memory of 2920	2060	b472f0b933ca3b23811e2a0ee38ee7fe6b09160e0c3a44cac7a279558ab5abbaN.exe	33
PID 2060 wrote to memory of 2920	2060	b472f0b933ca3b23811e2a0ee38ee7fe6b09160e0c3a44cac7a279558ab5abbaN.exe	33
PID 2060 wrote to memory of 2900	2060	b472f0b933ca3b23811e2a0ee38ee7fe6b09160e0c3a44cac7a279558ab5abbaN.exe	35
PID 2060 wrote to memory of 2900	2060	b472f0b933ca3b23811e2a0ee38ee7fe6b09160e0c3a44cac7a279558ab5abbaN.exe	35
PID 2060 wrote to memory of 2900	2060	b472f0b933ca3b23811e2a0ee38ee7fe6b09160e0c3a44cac7a279558ab5abbaN.exe	35
PID 2060 wrote to memory of 2208	2060	b472f0b933ca3b23811e2a0ee38ee7fe6b09160e0c3a44cac7a279558ab5abbaN.exe	37
PID 2060 wrote to memory of 2208	2060	b472f0b933ca3b23811e2a0ee38ee7fe6b09160e0c3a44cac7a279558ab5abbaN.exe	37
PID 2060 wrote to memory of 2208	2060	b472f0b933ca3b23811e2a0ee38ee7fe6b09160e0c3a44cac7a279558ab5abbaN.exe	37
PID 1292 wrote to memory of 1888	1292	taskeng.exe	40
PID 1292 wrote to memory of 1888	1292	taskeng.exe	40
PID 1292 wrote to memory of 1888	1292	taskeng.exe	40
PID 1292 wrote to memory of 2260	1292	taskeng.exe	41
PID 1292 wrote to memory of 2260	1292	taskeng.exe	41
PID 1292 wrote to memory of 2260	1292	taskeng.exe	41

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\b472f0b933ca3b23811e2a0ee38ee7fe6b09160e0c3a44cac7a279558ab5abbaN.exe
"C:\Users\Admin\AppData\Local\Temp\b472f0b933ca3b23811e2a0ee38ee7fe6b09160e0c3a44cac7a279558ab5abbaN.exe"
1⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2060
- 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\b472f0b933ca3b23811e2a0ee38ee7fe6b09160e0c3a44cac7a279558ab5abbaN.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2156
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'b472f0b933ca3b23811e2a0ee38ee7fe6b09160e0c3a44cac7a279558ab5abbaN.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2888
- 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:2920
- 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:2900
- 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⤵
  - Scheduled Task/Job: Scheduled Task
  PID:2208

C:\Windows\system32\taskeng.exe
taskeng.exe {BC7B7ACB-3BFF-4F9C-BE60-F06B345DA447} S-1-5-21-3692679935-4019334568-335155002-1000:BCXRJFKE\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:1292
- C:\Users\Admin\AppData\Roaming\XClient.exe
  C:\Users\Admin\AppData\Roaming\XClient.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:1888
- C:\Users\Admin\AppData\Roaming\XClient.exe
  C:\Users\Admin\AppData\Roaming\XClient.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:2260

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

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\0VL66D7W4BYET5ZD9QA7.temp

Filesize
7KB

MD5
50b17edb30228f40bf579826a6fcab29

SHA1
ba828697db7c8f2bf5ad1b36ced5c4bae3eaea45

SHA256
a24e3fee802fd69ca3eb89db66645acbae733afc10802b8f9befbdb95834f1c1

SHA512
17cf9c84a032bce99ba43078c7618b0ac83ff5f0200446383d6313367318242722715d461f24bd42040f92689bf111c36b3f8154ca80d7bc55e9edf562f6e764

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

Filesize
74KB

MD5
08a417a5e6e37956a220c44c99865c40

SHA1
8b4adb379ca775611515c786649dbd8b53bf5023

SHA256
b472f0b933ca3b23811e2a0ee38ee7fe6b09160e0c3a44cac7a279558ab5abba

SHA512
1bd4db7b7b42a8beed9ae31f567382ea2f08f7bd375ef77972321a50d7bfbfe4ad6827a261ba0391519978e1b68385109d8b1c181c75b11791bd3858924fef92

Download Submit
memory/1888-34-0x0000000000080000-0x0000000000098000-memory.dmp

Filesize
96KB

Download
memory/2060-27-0x000007FEF6253000-0x000007FEF6254000-memory.dmp

Filesize
4KB

Download
memory/2060-1-0x00000000001B0000-0x00000000001C8000-memory.dmp

Filesize
96KB

Download
memory/2060-0-0x000007FEF6253000-0x000007FEF6254000-memory.dmp

Filesize
4KB

Download
memory/2060-30-0x000000001A870000-0x000000001A8F0000-memory.dmp

Filesize
512KB

Download
memory/2060-29-0x000000001A870000-0x000000001A8F0000-memory.dmp

Filesize
512KB

Download
memory/2156-7-0x000000001B220000-0x000000001B502000-memory.dmp

Filesize
2.9MB

Download
memory/2156-8-0x0000000002310000-0x0000000002318000-memory.dmp

Filesize
32KB

Download
memory/2156-6-0x00000000025A0000-0x0000000002620000-memory.dmp

Filesize
512KB

Download
memory/2260-36-0x0000000000350000-0x0000000000368000-memory.dmp

Filesize
96KB

Download
memory/2888-15-0x0000000002410000-0x0000000002418000-memory.dmp

Filesize
32KB

Download
memory/2888-14-0x000000001B3C0000-0x000000001B6A2000-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