xworm | c6ee0fd2b511f01ced2be0cd78d5751886e2f1540d39981238ca3d48cd750bca

General

Target

OOKetNUn.exe
Size

69KB
MD5

5181770cbed31b900c8af62fd4239dd4
SHA1

a60ecfce32371fe5bf5ace4f6d85da2c2075738e
SHA256

6fcde9493755059859d02694b87be5a0c22e34402604c599a405cb81641a32c8
SHA512

62bf6dbf4e9bcc98978371b8d0d8fe0bf66c7ffa9fbb4a20d948bd85d30da98dbd7bfb496abe5882857232af83fa404bc8c6e0f1cacbe3fba11a7a734dbff292
SSDEEP

1536:SXEBFv+KnZS1fhCte+bQWRjg6ETKZOWbhQu4:ZnU15CQ+bQij+TKZOWbh74

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

C2

127.0.0.1:2501

local-josh.gl.at.ply.gg:2501

Attributes

Install_directory
%AppData%
install_file
Expencive.exe

Signatures

Detect Xworm Payload 1 IoCs

resource	yara_rule
behavioral1/memory/2032-1-0x00000000000A0000-0x00000000000B8000-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
1364	powershell.exe
2412	powershell.exe
2548	powershell.exe
2204	powershell.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Expencive.lnk	OOKetNUn.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Expencive.lnk	OOKetNUn.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-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Windows\CurrentVersion\Run\Expencive = "C:\\Users\\Admin\\AppData\\Roaming\\Expencive.exe"	OOKetNUn.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
1364	powershell.exe
2412	powershell.exe
2548	powershell.exe
2204	powershell.exe
2032	OOKetNUn.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	2032	OOKetNUn.exe
Token: SeDebugPrivilege	1364	powershell.exe
Token: SeDebugPrivilege	2412	powershell.exe
Token: SeDebugPrivilege	2548	powershell.exe
Token: SeDebugPrivilege	2204	powershell.exe
Token: SeDebugPrivilege	2032	OOKetNUn.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2032	OOKetNUn.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2032 wrote to memory of 1364	2032	OOKetNUn.exe	31
PID 2032 wrote to memory of 1364	2032	OOKetNUn.exe	31
PID 2032 wrote to memory of 1364	2032	OOKetNUn.exe	31
PID 2032 wrote to memory of 2412	2032	OOKetNUn.exe	33
PID 2032 wrote to memory of 2412	2032	OOKetNUn.exe	33
PID 2032 wrote to memory of 2412	2032	OOKetNUn.exe	33
PID 2032 wrote to memory of 2548	2032	OOKetNUn.exe	35
PID 2032 wrote to memory of 2548	2032	OOKetNUn.exe	35
PID 2032 wrote to memory of 2548	2032	OOKetNUn.exe	35
PID 2032 wrote to memory of 2204	2032	OOKetNUn.exe	37
PID 2032 wrote to memory of 2204	2032	OOKetNUn.exe	37
PID 2032 wrote to memory of 2204	2032	OOKetNUn.exe	37

C:\Users\Admin\AppData\Local\Temp\OOKetNUn.exe
"C:\Users\Admin\AppData\Local\Temp\OOKetNUn.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:2032
- 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\OOKetNUn.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1364
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'OOKetNUn.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2412
- 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\Expencive.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2548
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'Expencive.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2204

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\Y5DNA4UC4RYBJRY5PTF8.temp

Filesize
7KB

MD5
0e7e003bccb7e83e395d9a4566f541cb

SHA1
bc3372e09c1f4e01b7c5ac13bcfcb197b7b04fcf

SHA256
928599b72cda2f31c54c116647ea2aa3bb72a2cc875b474dee0882707c285638

SHA512
1e109bd7cc90cc9c9e4f5a2f1d467f4395c807d044917df22692e4caa0a69f058d5d9ab0dfbd8e10e728386f46ed449387e7ddf8a8d42b1493cc765b83f4d3a5

Download Submit
memory/1364-6-0x0000000002CC0000-0x0000000002D40000-memory.dmp

Filesize
512KB

Download
memory/1364-7-0x000000001B710000-0x000000001B9F2000-memory.dmp

Filesize
2.9MB

Download
memory/1364-8-0x0000000002770000-0x0000000002778000-memory.dmp

Filesize
32KB

Download
memory/2032-0-0x000007FEF5C33000-0x000007FEF5C34000-memory.dmp

Filesize
4KB

Download
memory/2032-1-0x00000000000A0000-0x00000000000B8000-memory.dmp

Filesize
96KB

Download
memory/2032-31-0x000000001B110000-0x000000001B190000-memory.dmp

Filesize
512KB

Download
memory/2032-32-0x000007FEF5C33000-0x000007FEF5C34000-memory.dmp

Filesize
4KB

Download
memory/2412-14-0x000000001B6F0000-0x000000001B9D2000-memory.dmp

Filesize
2.9MB

Download
memory/2412-15-0x0000000001D60000-0x0000000001D68000-memory.dmp

Filesize
32KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads