xworm | ff16df69039d6329aebb2adf7396ed766e253ab58a9aa096906a3c7e40d4793f

General

Target

XClient.exe
Size

81KB
MD5

b802ae101004f45cfd32a900b94a86ca
SHA1

a719fb0b493c258c836e0fe7c305e01692d60240
SHA256

ff16df69039d6329aebb2adf7396ed766e253ab58a9aa096906a3c7e40d4793f
SHA512

fe0824d2a94f72899af3fd4016be14ba25d144b2bf0f4b6d6c59f21d06eefb8283699495b1d0ca79541b2777f42649cb6522e407b52b342892e61cb104b4e659
SSDEEP

1536:k0NvSBCg9qehAGGlaODmvk+bL6ruzaSq6EH0EOXTQEtKSLSTdS1EAd8IIR:k0N5g9bevI4ms+bL6uaSIHhODztX+gE7

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

C2

november-cope.gl.at.ply.gg:37025

Attributes

Install_directory
%ProgramData%
install_file
update.exe

Signatures

Detect Xworm Payload 1 IoCs

resource	yara_rule
behavioral1/memory/2080-1-0x0000000000F30000-0x0000000000F4A000-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
2760	powershell.exe
2580	powershell.exe
2584	powershell.exe
1028	powershell.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\update.lnk	XClient.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\update.lnk	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-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Windows\CurrentVersion\Run\update = "C:\\ProgramData\\update.exe"	XClient.exe

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
2760	powershell.exe
2580	powershell.exe
2584	powershell.exe
1028	powershell.exe
2080	XClient.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	2080	XClient.exe
Token: SeDebugPrivilege	2760	powershell.exe
Token: SeDebugPrivilege	2580	powershell.exe
Token: SeDebugPrivilege	2584	powershell.exe
Token: SeDebugPrivilege	1028	powershell.exe
Token: SeDebugPrivilege	2080	XClient.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2080	XClient.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2080 wrote to memory of 2760	2080	XClient.exe	30
PID 2080 wrote to memory of 2760	2080	XClient.exe	30
PID 2080 wrote to memory of 2760	2080	XClient.exe	30
PID 2080 wrote to memory of 2580	2080	XClient.exe	32
PID 2080 wrote to memory of 2580	2080	XClient.exe	32
PID 2080 wrote to memory of 2580	2080	XClient.exe	32
PID 2080 wrote to memory of 2584	2080	XClient.exe	34
PID 2080 wrote to memory of 2584	2080	XClient.exe	34
PID 2080 wrote to memory of 2584	2080	XClient.exe	34
PID 2080 wrote to memory of 1028	2080	XClient.exe	36
PID 2080 wrote to memory of 1028	2080	XClient.exe	36
PID 2080 wrote to memory of 1028	2080	XClient.exe	36

C:\Users\Admin\AppData\Local\Temp\XClient.exe
"C:\Users\Admin\AppData\Local\Temp\XClient.exe"
1⤵
- 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:2080
- 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:2760
- 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:2580
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\ProgramData\update.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2584
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'update.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1028

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

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\DJ4EK3VUCYNLUND25J0M.temp

Filesize
7KB

MD5
3843bbf3037c3d6b1bcbb6425f444105

SHA1
b0e49e622026463623d5cbb5d5a2ac6662f473b1

SHA256
d5b21fb4a7d0b3b9d9d0d069385d2b99ddee6c1a0fdf7ea60c6faf3bdfa74ae3

SHA512
6a1473e62b6e057c25aa58d188eedaf3c702ef6aecb3b6b5de79f4dba59e181e84d282454286c4904c494f50f622b4d11379eed7a92d89469d36d19937103672

Download Submit
memory/2080-0-0x000007FEF57C3000-0x000007FEF57C4000-memory.dmp

Filesize
4KB

Download
memory/2080-1-0x0000000000F30000-0x0000000000F4A000-memory.dmp

Filesize
104KB

Download
memory/2080-31-0x000000001B380000-0x000000001B400000-memory.dmp

Filesize
512KB

Download
memory/2080-32-0x000007FEF57C3000-0x000007FEF57C4000-memory.dmp

Filesize
4KB

Download
memory/2080-33-0x000000001B380000-0x000000001B400000-memory.dmp

Filesize
512KB

Download
memory/2580-14-0x000000001B6A0000-0x000000001B982000-memory.dmp

Filesize
2.9MB

Download
memory/2580-15-0x0000000002140000-0x0000000002148000-memory.dmp

Filesize
32KB

Download
memory/2760-6-0x0000000002C20000-0x0000000002CA0000-memory.dmp

Filesize
512KB

Download
memory/2760-7-0x000000001B770000-0x000000001BA52000-memory.dmp

Filesize
2.9MB

Download
memory/2760-8-0x0000000001E70000-0x0000000001E78000-memory.dmp

Filesize
32KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads