xworm | 2c0a67858a564a9f8e31bee30a7f3fff197abab45c86a76258b5dff361f782d5

Reason

Machine shutdown

General

Target

BEta.exe
Size

71KB
MD5

4e04e4b330468d08c1ced57a9d4237d3
SHA1

ea29e0c159454cac9295d3a13208ef5ad3c68e20
SHA256

2c0a67858a564a9f8e31bee30a7f3fff197abab45c86a76258b5dff361f782d5
SHA512

eed94bace96ca2667e6cb77369d49159f1250f104b6efef4eebf0818fe2c3ee60ac34c11709ac4680e32408aa9d3ef0f72336d10ad082d03d661ba563d2b32c8
SSDEEP

1536:djgqQWeBS2EyNTGwN+bxPkcL/ADB6YO1hXMUEsp:OEyNT+bRkvD3O1ZMU/p

Score

10^/10

xworm execution rat trojan

Malware Config

Extracted

Family

xworm

C2

l-drive.gl.at.ply.gg:37755

Attributes

Install_directory
%AppData%
install_file
XClient.exe

Signatures

Detect Xworm Payload 1 IoCs

resource	yara_rule
behavioral1/memory/2908-1-0x0000000000FC0000-0x0000000000FD8000-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
1756	powershell.exe
1640	powershell.exe
1996	powershell.exe
4488	powershell.exe

Drops startup file 2 IoCs

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

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

System Information Discovery
T1082

Modifies data under HKEY_USERS 15 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\AccentColorMenu = "4292114432"	LogonUI.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationColorBalance = "89"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\StartColorMenu = "4290799360"	LogonUI.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\AccentPalette = 99ebff004cc2ff000091f8000078d4000067c000003e9200001a6800f7630c00	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationColor = "3288365268"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationAfterglowBalance = "10"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationGlassAttribute = "1"	LogonUI.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Themes\History	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Themes\History\AutoColor = "0"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\AccentColor = "4292114432"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationAfterglow = "3288365268"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationBlurBalance = "1"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\EnableWindowColorization = "14"	LogonUI.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
1756	powershell.exe
1756	powershell.exe
1640	powershell.exe
1640	powershell.exe
1996	powershell.exe
1996	powershell.exe
4488	powershell.exe
4488	powershell.exe
2908	BEta.exe

Suspicious use of AdjustPrivilegeToken 8 IoCs

description	pid	Process
Token: SeDebugPrivilege	2908	BEta.exe
Token: SeDebugPrivilege	1756	powershell.exe
Token: SeDebugPrivilege	1640	powershell.exe
Token: SeDebugPrivilege	1996	powershell.exe
Token: SeDebugPrivilege	4488	powershell.exe
Token: SeDebugPrivilege	2908	BEta.exe
Token: SeShutdownPrivilege	1148	shutdown.exe
Token: SeRemoteShutdownPrivilege	1148	shutdown.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2908	BEta.exe
2780	LogonUI.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 2908 wrote to memory of 1756	2908	BEta.exe	77
PID 2908 wrote to memory of 1756	2908	BEta.exe	77
PID 2908 wrote to memory of 1640	2908	BEta.exe	79
PID 2908 wrote to memory of 1640	2908	BEta.exe	79
PID 2908 wrote to memory of 1996	2908	BEta.exe	81
PID 2908 wrote to memory of 1996	2908	BEta.exe	81
PID 2908 wrote to memory of 4488	2908	BEta.exe	83
PID 2908 wrote to memory of 4488	2908	BEta.exe	83
PID 2908 wrote to memory of 1148	2908	BEta.exe	86
PID 2908 wrote to memory of 1148	2908	BEta.exe	86

C:\Users\Admin\AppData\Local\Temp\BEta.exe
"C:\Users\Admin\AppData\Local\Temp\BEta.exe"
1⤵
- Drops startup file
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2908
- 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\BEta.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1756
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'BEta.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1640
- 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:1996
- 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:4488
- C:\Windows\SYSTEM32\shutdown.exe
  shutdown.exe /f /s /t 0
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:1148

C:\Windows\system32\LogonUI.exe
"LogonUI.exe" /flags:0x4 /state0:0xa3a01055 /state1:0x41c64e6d
1⤵
- Modifies data under HKEY_USERS
- Suspicious use of SetWindowsHookEx
PID:2780

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log

Filesize
2KB

MD5
627073ee3ca9676911bee35548eff2b8

SHA1
4c4b68c65e2cab9864b51167d710aa29ebdcff2e

SHA256
85b280a39fc31ba1e15fb06102a05b8405ff3b82feb181d4170f04e466dd647c

SHA512
3c5f6c03e253b83c57e8d6f0334187dbdcdf4fa549eecd36cbc1322dca6d3ca891dc6a019c49ec2eafb88f82d0434299c31e4dfaab123acb42e0546218f311fb

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

Filesize
944B

MD5
6903d57eed54e89b68ebb957928d1b99

SHA1
fade011fbf2e4bc044d41e380cf70bd6a9f73212

SHA256
36cbb00b016c9f97645fb628ef72b524dfbdf6e08d626e5c837bbbb9075dcb52

SHA512
c192ea9810fd22de8378269235c1035aa1fe1975a53c876fe4a7acc726c020f94773c21e4e4771133f9fcedb0209f0a5324c594c1db5b28fe1b27644db4fdc9e

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

Filesize
944B

MD5
050567a067ffea4eb40fe2eefebdc1ee

SHA1
6e1fb2c7a7976e0724c532449e97722787a00fec

SHA256
3952d5b543e5cb0cb84014f4ad9f5f1b7166f592d28640cbc3d914d0e6f41d2e

SHA512
341ad71ef7e850b10e229666312e4bca87a0ed9fe25ba4b0ab65661d5a0efa855db0592153106da07134d8fc2c6c0e44709bf38183c9a574a1fa543189971259

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

Filesize
944B

MD5
e342a6c99e9f7fbc8e07c0e627745102

SHA1
36eedce281cbc2f6aecbce12f67c8a4c60393ade

SHA256
75fe5ba0069fdf49ac69438e118d2ee36d6605f3d76a67e3cc8d1e5ef170771b

SHA512
217828421c67649758bb06721f08944cbb483a4d2f6b73a7ee31d42de41efeb243a7b3b3e56ce183b3ea339ba0c22753aa1f029ad071c4722723013cf5d01827

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_1wwbyxan.ekq.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/1756-11-0x00007FFB5DE50000-0x00007FFB5E912000-memory.dmp

Filesize
10.8MB

Download
memory/1756-13-0x00007FFB5DE50000-0x00007FFB5E912000-memory.dmp

Filesize
10.8MB

Download
memory/1756-14-0x00007FFB5DE50000-0x00007FFB5E912000-memory.dmp

Filesize
10.8MB

Download
memory/1756-17-0x00007FFB5DE50000-0x00007FFB5E912000-memory.dmp

Filesize
10.8MB

Download
memory/1756-18-0x00007FFB5DE50000-0x00007FFB5E912000-memory.dmp

Filesize
10.8MB

Download
memory/1756-12-0x00007FFB5DE50000-0x00007FFB5E912000-memory.dmp

Filesize
10.8MB

Download
memory/1756-2-0x000002BC333E0000-0x000002BC33402000-memory.dmp

Filesize
136KB

Download
memory/2908-0-0x00007FFB5DE53000-0x00007FFB5DE55000-memory.dmp

Filesize
8KB

Download
memory/2908-1-0x0000000000FC0000-0x0000000000FD8000-memory.dmp

Filesize
96KB

Download
memory/2908-54-0x00007FFB5DE50000-0x00007FFB5E912000-memory.dmp

Filesize
10.8MB

Download
memory/2908-55-0x00007FFB5DE50000-0x00007FFB5E912000-memory.dmp

Filesize
10.8MB

Download
memory/2908-56-0x000000001BDB0000-0x000000001BDBC000-memory.dmp

Filesize
48KB

Download
memory/2908-58-0x00007FFB5DE50000-0x00007FFB5E912000-memory.dmp

Filesize
10.8MB

Download

Analysis

Sharing

Errors