xworm | baa8ace81d5e51f20fea99bf6b8de26c594a2011b670883304e085e5a9847eb2

Analysis

max time kernel
144s
max time network
150s
platform
windows10-1703_x64
resource
win10-20240404-en
resource tags

arch:x64arch:x86image:win10-20240404-enlocale:en-usos:windows10-1703-x64system
submitted
01-08-2024 21:00

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General

Target

XClient.exe
Size

80KB
MD5

bfa950b37b6a4f8de71af861e677a8b4
SHA1

2ee40bfbf2964d92c82256e5924169295dfdd225
SHA256

07f94f8f6061ba95899914496edc5854aa810de56797d9004875276d60e21ade
SHA512

235b514fac01b24edaef3aeb4209676789b6ba9264a8798cb7ae48c26d2455cdd8f254e92bbba688535acb69fd77b3c0a0a549cf97ece84c235cc74f72234e1a
SSDEEP

1536:EI5NuEGJkEtydWqZQSp1eS+b59gxzhfxdl/5m6qeo//3Oy/4IK4Dax5:Eg1GhtktQGAS+b59cJ4eA/OlINDab

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

full-self.gl.at.ply.gg:45212

Attributes

Install_directory
%AppData%
install_file
XClient.exe

Signatures

Detect Xworm Payload 1 IoCs

resource	yara_rule
behavioral2/memory/3288-0-0x0000000000F40000-0x0000000000F5A000-memory.dmp	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

pid	Process
3244	powershell.exe
376	powershell.exe
700	powershell.exe
200	powershell.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-1-5-21-4106386276-4127174233-3637007343-1000\Software\Microsoft\Windows\CurrentVersion\Run\XClient = "C:\\Users\\Admin\\AppData\\Roaming\\XClient.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 13 IoCs

pid	Process
700	powershell.exe
700	powershell.exe
700	powershell.exe
200	powershell.exe
200	powershell.exe
200	powershell.exe
3244	powershell.exe
3244	powershell.exe
3244	powershell.exe
376	powershell.exe
376	powershell.exe
376	powershell.exe
3288	XClient.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	3288	XClient.exe
Token: SeDebugPrivilege	700	powershell.exe
Token: SeIncreaseQuotaPrivilege	700	powershell.exe
Token: SeSecurityPrivilege	700	powershell.exe
Token: SeTakeOwnershipPrivilege	700	powershell.exe
Token: SeLoadDriverPrivilege	700	powershell.exe
Token: SeSystemProfilePrivilege	700	powershell.exe
Token: SeSystemtimePrivilege	700	powershell.exe
Token: SeProfSingleProcessPrivilege	700	powershell.exe
Token: SeIncBasePriorityPrivilege	700	powershell.exe
Token: SeCreatePagefilePrivilege	700	powershell.exe
Token: SeBackupPrivilege	700	powershell.exe
Token: SeRestorePrivilege	700	powershell.exe
Token: SeShutdownPrivilege	700	powershell.exe
Token: SeDebugPrivilege	700	powershell.exe
Token: SeSystemEnvironmentPrivilege	700	powershell.exe
Token: SeRemoteShutdownPrivilege	700	powershell.exe
Token: SeUndockPrivilege	700	powershell.exe
Token: SeManageVolumePrivilege	700	powershell.exe
Token: 33	700	powershell.exe
Token: 34	700	powershell.exe
Token: 35	700	powershell.exe
Token: 36	700	powershell.exe
Token: SeDebugPrivilege	200	powershell.exe
Token: SeIncreaseQuotaPrivilege	200	powershell.exe
Token: SeSecurityPrivilege	200	powershell.exe
Token: SeTakeOwnershipPrivilege	200	powershell.exe
Token: SeLoadDriverPrivilege	200	powershell.exe
Token: SeSystemProfilePrivilege	200	powershell.exe
Token: SeSystemtimePrivilege	200	powershell.exe
Token: SeProfSingleProcessPrivilege	200	powershell.exe
Token: SeIncBasePriorityPrivilege	200	powershell.exe
Token: SeCreatePagefilePrivilege	200	powershell.exe
Token: SeBackupPrivilege	200	powershell.exe
Token: SeRestorePrivilege	200	powershell.exe
Token: SeShutdownPrivilege	200	powershell.exe
Token: SeDebugPrivilege	200	powershell.exe
Token: SeSystemEnvironmentPrivilege	200	powershell.exe
Token: SeRemoteShutdownPrivilege	200	powershell.exe
Token: SeUndockPrivilege	200	powershell.exe
Token: SeManageVolumePrivilege	200	powershell.exe
Token: 33	200	powershell.exe
Token: 34	200	powershell.exe
Token: 35	200	powershell.exe
Token: 36	200	powershell.exe
Token: SeDebugPrivilege	3244	powershell.exe
Token: SeIncreaseQuotaPrivilege	3244	powershell.exe
Token: SeSecurityPrivilege	3244	powershell.exe
Token: SeTakeOwnershipPrivilege	3244	powershell.exe
Token: SeLoadDriverPrivilege	3244	powershell.exe
Token: SeSystemProfilePrivilege	3244	powershell.exe
Token: SeSystemtimePrivilege	3244	powershell.exe
Token: SeProfSingleProcessPrivilege	3244	powershell.exe
Token: SeIncBasePriorityPrivilege	3244	powershell.exe
Token: SeCreatePagefilePrivilege	3244	powershell.exe
Token: SeBackupPrivilege	3244	powershell.exe
Token: SeRestorePrivilege	3244	powershell.exe
Token: SeShutdownPrivilege	3244	powershell.exe
Token: SeDebugPrivilege	3244	powershell.exe
Token: SeSystemEnvironmentPrivilege	3244	powershell.exe
Token: SeRemoteShutdownPrivilege	3244	powershell.exe
Token: SeUndockPrivilege	3244	powershell.exe
Token: SeManageVolumePrivilege	3244	powershell.exe
Token: 33	3244	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3288	XClient.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 3288 wrote to memory of 700	3288	XClient.exe	74
PID 3288 wrote to memory of 700	3288	XClient.exe	74
PID 3288 wrote to memory of 200	3288	XClient.exe	77
PID 3288 wrote to memory of 200	3288	XClient.exe	77
PID 3288 wrote to memory of 3244	3288	XClient.exe	79
PID 3288 wrote to memory of 3244	3288	XClient.exe	79
PID 3288 wrote to memory of 376	3288	XClient.exe	81
PID 3288 wrote to memory of 376	3288	XClient.exe	81

C:\Users\Admin\AppData\Local\Temp\XClient.exe
"C:\Users\Admin\AppData\Local\Temp\XClient.exe"
1⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3288
- 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:700
- 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:200
- 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:3244
- 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
  PID:376

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
3KB

MD5
ad5cd538ca58cb28ede39c108acb5785

SHA1
1ae910026f3dbe90ed025e9e96ead2b5399be877

SHA256
c9e6cb04d6c893458d5a7e12eb575cf97c3172f5e312b1f63a667cbbc5f0c033

SHA512
c066c5d9b276a68fa636647bb29aea05bfa2292217bc77f5324d9c1d93117772ee8277e1f7cff91ec8d6b7c05ca078f929cecfdbb09582522a9067f54740af13

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

Filesize
1KB

MD5
2e9dd95184cea977731903f90865d9ef

SHA1
9ecb89cef9506ed83a9724d49b378333209368fc

SHA256
4ca225427114b0363e6db736efd5c1c95212262c2734a1e339aa1c1c7630def3

SHA512
ba241d9a5f05bfc5f75513f9723548336b588376eaedb8a552f9dd25628d0d365b76ce0020eaaf9695ecfe376c976d5e4f4f42374431b22f28ed54902af48986

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

Filesize
1KB

MD5
92ad4c817e941a23e7a341723de73add

SHA1
7d0a1cbec514a212982fa24f4a53f018757d83a9

SHA256
d3cc2fb1a6040a5b247e1b8f42e3a6dcdf77f885d7835ad0ea4a0e5a98d98db9

SHA512
6e7715b8093434e8b07ad23527142851009b3a30d2e8c8d55e642a280eea3d3a95050436d3e3e3656c8e8a460871f5abc1ffc10837bd593fd6d9af92f3a4be12

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

Filesize
1KB

MD5
b68364f7d675a42673c36b9213943cb1

SHA1
a62993ff4f19bb3879db0a57ce7d6dd1c6746221

SHA256
7a2931e4b168de60385ad79c234d4d7640fd25bd060e6606096f40d67fbeca26

SHA512
618f6c8d299d1fec3c6a8cffee9b0776e4fcedb16c2ebc42553fc0aa8eb19806d8a7cd875a4174983eefee48b330d9693126c8b544a0b22573e5248a19f8d9fc

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_ceyac0f2.fsl.ps1

Filesize
1B

MD5
c4ca4238a0b923820dcc509a6f75849b

SHA1
356a192b7913b04c54574d18c28d46e6395428ab

SHA256
6b86b273ff34fce19d6b804eff5a3f5747ada4eaa22f1d49c01e52ddb7875b4b

SHA512
4dff4ea340f0a823f15d3f4f01ab62eae0e5da579ccb851f8db9dfe84c58b2b37b89903a740e1ee172da793a6e79d560e5f7f9bd058a12a280433ed6fa46510a

Download Submit
memory/700-10-0x00000253FE0B0000-0x00000253FE126000-memory.dmp

Filesize
472KB

Download
memory/700-12-0x00007FF8C3950000-0x00007FF8C433C000-memory.dmp

Filesize
9.9MB

Download
memory/700-11-0x00007FF8C3950000-0x00007FF8C433C000-memory.dmp

Filesize
9.9MB

Download
memory/700-41-0x00007FF8C3950000-0x00007FF8C433C000-memory.dmp

Filesize
9.9MB

Download
memory/700-51-0x00007FF8C3950000-0x00007FF8C433C000-memory.dmp

Filesize
9.9MB

Download
memory/700-52-0x00007FF8C3950000-0x00007FF8C433C000-memory.dmp

Filesize
9.9MB

Download
memory/700-9-0x00007FF8C3950000-0x00007FF8C433C000-memory.dmp

Filesize
9.9MB

Download
memory/700-6-0x00000253E5A10000-0x00000253E5A32000-memory.dmp

Filesize
136KB

Download
memory/3288-0-0x0000000000F40000-0x0000000000F5A000-memory.dmp

Filesize
104KB

Download
memory/3288-1-0x00007FF8C3953000-0x00007FF8C3954000-memory.dmp

Filesize
4KB

Download
memory/3288-184-0x00007FF8C3950000-0x00007FF8C433C000-memory.dmp

Filesize
9.9MB

Download
memory/3288-185-0x00007FF8C3950000-0x00007FF8C433C000-memory.dmp

Filesize
9.9MB

Download