xworm | baa8ace81d5e51f20fea99bf6b8de26c594a2011b670883304e085e5a9847eb2

Analysis

max time kernel
140s
max time network
146s
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/4988-0-0x00000000000F0000-0x000000000010A000-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
1832	powershell.exe
756	powershell.exe
4112	powershell.exe
1724	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-1-5-21-160447019-1232603106-4168707212-1000\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
1832	powershell.exe
1832	powershell.exe
1832	powershell.exe
756	powershell.exe
756	powershell.exe
756	powershell.exe
4112	powershell.exe
4112	powershell.exe
4112	powershell.exe
1724	powershell.exe
1724	powershell.exe
1724	powershell.exe
4988	XClient.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	4988	XClient.exe
Token: SeDebugPrivilege	1832	powershell.exe
Token: SeIncreaseQuotaPrivilege	1832	powershell.exe
Token: SeSecurityPrivilege	1832	powershell.exe
Token: SeTakeOwnershipPrivilege	1832	powershell.exe
Token: SeLoadDriverPrivilege	1832	powershell.exe
Token: SeSystemProfilePrivilege	1832	powershell.exe
Token: SeSystemtimePrivilege	1832	powershell.exe
Token: SeProfSingleProcessPrivilege	1832	powershell.exe
Token: SeIncBasePriorityPrivilege	1832	powershell.exe
Token: SeCreatePagefilePrivilege	1832	powershell.exe
Token: SeBackupPrivilege	1832	powershell.exe
Token: SeRestorePrivilege	1832	powershell.exe
Token: SeShutdownPrivilege	1832	powershell.exe
Token: SeDebugPrivilege	1832	powershell.exe
Token: SeSystemEnvironmentPrivilege	1832	powershell.exe
Token: SeRemoteShutdownPrivilege	1832	powershell.exe
Token: SeUndockPrivilege	1832	powershell.exe
Token: SeManageVolumePrivilege	1832	powershell.exe
Token: 33	1832	powershell.exe
Token: 34	1832	powershell.exe
Token: 35	1832	powershell.exe
Token: 36	1832	powershell.exe
Token: SeDebugPrivilege	756	powershell.exe
Token: SeIncreaseQuotaPrivilege	756	powershell.exe
Token: SeSecurityPrivilege	756	powershell.exe
Token: SeTakeOwnershipPrivilege	756	powershell.exe
Token: SeLoadDriverPrivilege	756	powershell.exe
Token: SeSystemProfilePrivilege	756	powershell.exe
Token: SeSystemtimePrivilege	756	powershell.exe
Token: SeProfSingleProcessPrivilege	756	powershell.exe
Token: SeIncBasePriorityPrivilege	756	powershell.exe
Token: SeCreatePagefilePrivilege	756	powershell.exe
Token: SeBackupPrivilege	756	powershell.exe
Token: SeRestorePrivilege	756	powershell.exe
Token: SeShutdownPrivilege	756	powershell.exe
Token: SeDebugPrivilege	756	powershell.exe
Token: SeSystemEnvironmentPrivilege	756	powershell.exe
Token: SeRemoteShutdownPrivilege	756	powershell.exe
Token: SeUndockPrivilege	756	powershell.exe
Token: SeManageVolumePrivilege	756	powershell.exe
Token: 33	756	powershell.exe
Token: 34	756	powershell.exe
Token: 35	756	powershell.exe
Token: 36	756	powershell.exe
Token: SeDebugPrivilege	4112	powershell.exe
Token: SeIncreaseQuotaPrivilege	4112	powershell.exe
Token: SeSecurityPrivilege	4112	powershell.exe
Token: SeTakeOwnershipPrivilege	4112	powershell.exe
Token: SeLoadDriverPrivilege	4112	powershell.exe
Token: SeSystemProfilePrivilege	4112	powershell.exe
Token: SeSystemtimePrivilege	4112	powershell.exe
Token: SeProfSingleProcessPrivilege	4112	powershell.exe
Token: SeIncBasePriorityPrivilege	4112	powershell.exe
Token: SeCreatePagefilePrivilege	4112	powershell.exe
Token: SeBackupPrivilege	4112	powershell.exe
Token: SeRestorePrivilege	4112	powershell.exe
Token: SeShutdownPrivilege	4112	powershell.exe
Token: SeDebugPrivilege	4112	powershell.exe
Token: SeSystemEnvironmentPrivilege	4112	powershell.exe
Token: SeRemoteShutdownPrivilege	4112	powershell.exe
Token: SeUndockPrivilege	4112	powershell.exe
Token: SeManageVolumePrivilege	4112	powershell.exe
Token: 33	4112	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4988	XClient.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 4988 wrote to memory of 1832	4988	XClient.exe	74
PID 4988 wrote to memory of 1832	4988	XClient.exe	74
PID 4988 wrote to memory of 756	4988	XClient.exe	77
PID 4988 wrote to memory of 756	4988	XClient.exe	77
PID 4988 wrote to memory of 4112	4988	XClient.exe	79
PID 4988 wrote to memory of 4112	4988	XClient.exe	79
PID 4988 wrote to memory of 1724	4988	XClient.exe	81
PID 4988 wrote to memory of 1724	4988	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:4988
- 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:1832
- 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:756
- 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:4112
- 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:1724

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
e14525dd5287abbb5e5a0d99729859a9

SHA1
f6db19f300bd2573cb60e45fd9a55b00e74a9aa8

SHA256
ab71fa8ecb1b5542774f02ab84e2ed47beaf09c153620cc3b34ea204594c532a

SHA512
15853fb885d0e38f2593009ab35117a172d6e00ea795f9975c267d089d9e35445a95e0dada75ce237540bdbf77667397f43749d75703d192332bb2933e853afa

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

Filesize
1KB

MD5
d6c29d94c6f82cd22b50cbdc6b722567

SHA1
53de28b73e829605b6990e0f909cb7f95c2ef5d7

SHA256
d87ecad35bccd614fa503059080b3477afc4c5ba9fdff04138354d1462cb6f7f

SHA512
29d0caed2de3a888891ecd459a5b54fab2cc2f2853a2c013abcc2c3b29dd015c83b8e2f977d23cc34d0bbf8cf7d6ba0ad19a0b4b1d6bd6723483624494ac8c93

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

Filesize
1KB

MD5
b6b2ca00acc5facefdc9cc6fe2b65b89

SHA1
1027145a9e49f2ef163cf31a3e51ce8766491a9a

SHA256
a781361b76b80bb678563d35ee0089f74c8f87e47f4bb2c77f95977d7ce07ef5

SHA512
1765c13cba7cd29495361ed29e4cb526c361e056bf4aa2be8059310ea745abc2cf7239433c269e767ab2ce46d65e57cf02ded4570256f9fc60eb784dd24fd6b3

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_o3ua4qum.5l1.ps1

Filesize
1B

MD5
c4ca4238a0b923820dcc509a6f75849b

SHA1
356a192b7913b04c54574d18c28d46e6395428ab

SHA256
6b86b273ff34fce19d6b804eff5a3f5747ada4eaa22f1d49c01e52ddb7875b4b

SHA512
4dff4ea340f0a823f15d3f4f01ab62eae0e5da579ccb851f8db9dfe84c58b2b37b89903a740e1ee172da793a6e79d560e5f7f9bd058a12a280433ed6fa46510a

Download Submit
memory/1832-10-0x00007FF8F2420000-0x00007FF8F2E0C000-memory.dmp

Filesize
9.9MB

Download
memory/1832-12-0x00007FF8F2420000-0x00007FF8F2E0C000-memory.dmp

Filesize
9.9MB

Download
memory/1832-11-0x0000026FEA9D0000-0x0000026FEAA46000-memory.dmp

Filesize
472KB

Download
memory/1832-41-0x00007FF8F2420000-0x00007FF8F2E0C000-memory.dmp

Filesize
9.9MB

Download
memory/1832-48-0x00007FF8F2420000-0x00007FF8F2E0C000-memory.dmp

Filesize
9.9MB

Download
memory/1832-52-0x00007FF8F2420000-0x00007FF8F2E0C000-memory.dmp

Filesize
9.9MB

Download
memory/1832-9-0x00007FF8F2420000-0x00007FF8F2E0C000-memory.dmp

Filesize
9.9MB

Download
memory/1832-6-0x0000026FEA820000-0x0000026FEA842000-memory.dmp

Filesize
136KB

Download
memory/4988-0-0x00000000000F0000-0x000000000010A000-memory.dmp

Filesize
104KB

Download
memory/4988-1-0x00007FF8F2423000-0x00007FF8F2424000-memory.dmp

Filesize
4KB

Download
memory/4988-184-0x00007FF8F2420000-0x00007FF8F2E0C000-memory.dmp

Filesize
9.9MB

Download
memory/4988-185-0x00007FF8F2420000-0x00007FF8F2E0C000-memory.dmp

Filesize
9.9MB

Download