xworm | 07f94f8f6061ba95899914496edc5854aa810de56797d9004875276d60e21ade

Analysis

max time kernel
129s
max time network
135s
platform
windows10-1703_x64
resource
win10-20240611-en
resource tags

arch:x64arch:x86image:win10-20240611-enlocale:en-usos:windows10-1703-x64system
submitted
01-08-2024 20:52

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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
behavioral1/memory/4488-1-0x0000000000A50000-0x0000000000A6A000-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
4648	powershell.exe
4316	powershell.exe
4664	powershell.exe
2464	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-1-5-21-1453213197-474736321-1741884505-1000\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

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
4348	timeout.exe

Suspicious behavior: EnumeratesProcesses 13 IoCs

pid	Process
4648	powershell.exe
4648	powershell.exe
4648	powershell.exe
4316	powershell.exe
4316	powershell.exe
4316	powershell.exe
4664	powershell.exe
4664	powershell.exe
4664	powershell.exe
2464	powershell.exe
2464	powershell.exe
2464	powershell.exe
4488	XClient.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	4488	XClient.exe
Token: SeDebugPrivilege	4648	powershell.exe
Token: SeIncreaseQuotaPrivilege	4648	powershell.exe
Token: SeSecurityPrivilege	4648	powershell.exe
Token: SeTakeOwnershipPrivilege	4648	powershell.exe
Token: SeLoadDriverPrivilege	4648	powershell.exe
Token: SeSystemProfilePrivilege	4648	powershell.exe
Token: SeSystemtimePrivilege	4648	powershell.exe
Token: SeProfSingleProcessPrivilege	4648	powershell.exe
Token: SeIncBasePriorityPrivilege	4648	powershell.exe
Token: SeCreatePagefilePrivilege	4648	powershell.exe
Token: SeBackupPrivilege	4648	powershell.exe
Token: SeRestorePrivilege	4648	powershell.exe
Token: SeShutdownPrivilege	4648	powershell.exe
Token: SeDebugPrivilege	4648	powershell.exe
Token: SeSystemEnvironmentPrivilege	4648	powershell.exe
Token: SeRemoteShutdownPrivilege	4648	powershell.exe
Token: SeUndockPrivilege	4648	powershell.exe
Token: SeManageVolumePrivilege	4648	powershell.exe
Token: 33	4648	powershell.exe
Token: 34	4648	powershell.exe
Token: 35	4648	powershell.exe
Token: 36	4648	powershell.exe
Token: SeDebugPrivilege	4316	powershell.exe
Token: SeIncreaseQuotaPrivilege	4316	powershell.exe
Token: SeSecurityPrivilege	4316	powershell.exe
Token: SeTakeOwnershipPrivilege	4316	powershell.exe
Token: SeLoadDriverPrivilege	4316	powershell.exe
Token: SeSystemProfilePrivilege	4316	powershell.exe
Token: SeSystemtimePrivilege	4316	powershell.exe
Token: SeProfSingleProcessPrivilege	4316	powershell.exe
Token: SeIncBasePriorityPrivilege	4316	powershell.exe
Token: SeCreatePagefilePrivilege	4316	powershell.exe
Token: SeBackupPrivilege	4316	powershell.exe
Token: SeRestorePrivilege	4316	powershell.exe
Token: SeShutdownPrivilege	4316	powershell.exe
Token: SeDebugPrivilege	4316	powershell.exe
Token: SeSystemEnvironmentPrivilege	4316	powershell.exe
Token: SeRemoteShutdownPrivilege	4316	powershell.exe
Token: SeUndockPrivilege	4316	powershell.exe
Token: SeManageVolumePrivilege	4316	powershell.exe
Token: 33	4316	powershell.exe
Token: 34	4316	powershell.exe
Token: 35	4316	powershell.exe
Token: 36	4316	powershell.exe
Token: SeDebugPrivilege	4664	powershell.exe
Token: SeIncreaseQuotaPrivilege	4664	powershell.exe
Token: SeSecurityPrivilege	4664	powershell.exe
Token: SeTakeOwnershipPrivilege	4664	powershell.exe
Token: SeLoadDriverPrivilege	4664	powershell.exe
Token: SeSystemProfilePrivilege	4664	powershell.exe
Token: SeSystemtimePrivilege	4664	powershell.exe
Token: SeProfSingleProcessPrivilege	4664	powershell.exe
Token: SeIncBasePriorityPrivilege	4664	powershell.exe
Token: SeCreatePagefilePrivilege	4664	powershell.exe
Token: SeBackupPrivilege	4664	powershell.exe
Token: SeRestorePrivilege	4664	powershell.exe
Token: SeShutdownPrivilege	4664	powershell.exe
Token: SeDebugPrivilege	4664	powershell.exe
Token: SeSystemEnvironmentPrivilege	4664	powershell.exe
Token: SeRemoteShutdownPrivilege	4664	powershell.exe
Token: SeUndockPrivilege	4664	powershell.exe
Token: SeManageVolumePrivilege	4664	powershell.exe
Token: 33	4664	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4488	XClient.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 4488 wrote to memory of 4648	4488	XClient.exe	71
PID 4488 wrote to memory of 4648	4488	XClient.exe	71
PID 4488 wrote to memory of 4316	4488	XClient.exe	74
PID 4488 wrote to memory of 4316	4488	XClient.exe	74
PID 4488 wrote to memory of 4664	4488	XClient.exe	76
PID 4488 wrote to memory of 4664	4488	XClient.exe	76
PID 4488 wrote to memory of 2464	4488	XClient.exe	78
PID 4488 wrote to memory of 2464	4488	XClient.exe	78
PID 4488 wrote to memory of 2644	4488	XClient.exe	81
PID 4488 wrote to memory of 2644	4488	XClient.exe	81
PID 2644 wrote to memory of 4348	2644	cmd.exe	83
PID 2644 wrote to memory of 4348	2644	cmd.exe	83

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:4488
- 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:4648
- 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:4316
- 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:4664
- 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:2464
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp605B.tmp.bat""
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2644
- - C:\Windows\system32\timeout.exe
    timeout 3
    3⤵
    - Delays execution with timeout.exe
    PID:4348

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
8592ba100a78835a6b94d5949e13dfc1

SHA1
63e901200ab9a57c7dd4c078d7f75dcd3b357020

SHA256
fdd7d9def6f9f0c0f2e60dbc8a2d1999071cd7d3095e9e087bb1cda7a614ac3c

SHA512
87f98e6cb61b2a2a7d65710c4d33881d89715eb7a06e00d492259f35c3902498baabffc5886be0ec5a14312ad4c262e3fc40cd3a5cb91701af0fb229726b88c3

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

Filesize
1KB

MD5
7bd07d2edb6ee01486dffb0b716b0dd4

SHA1
4321c93375ea61a3b18126107e78991715bd5412

SHA256
234581a74de874a538d1b1b51d2e9748de947ddb796798e1ed694e219eef0080

SHA512
1de4e5f4c284da725f6234746c91093b170fe2ec2e23e95a623b02a916e08dcf063cd564b4f841a2095cf4e9a18c0f2e13a3c03ab8106a4c6a5e30a7b6a645d9

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

Filesize
1KB

MD5
2bee91c589b449441e49c965936550f1

SHA1
65ffce1428c7a1a859273d86ec82ab474e70e83b

SHA256
60c0900a7fa1101b2017a4bcfd614d752788554849728218f9ee64ef81d912a0

SHA512
583f63fe78eeadc0d3a7011bb63093c6ed5d1d6e5678d5b0e95d8450d09db445612ecff782175e5844fdae69e636b1d318ebddb339b5eb385bfd7cff6970729c

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

Filesize
1KB

MD5
4331e74904ef9b0475bbfb184c8dc0eb

SHA1
35b721308a1b24e3b88d8f8abd5a013210939c5c

SHA256
487389c54b25440cd7f77559fa95208f0865ccdff58308282afc5c6986c7941a

SHA512
3bf218bedc5bb66cc2a39e1f8639ceb91fea5bae2bf8e817eeaab9fd20d68771150f12387f3839836e07fbd9c022b46893ee8b0f505d678b7c0951e06d0db004

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_cqzlreca.lgq.ps1

Filesize
1B

MD5
c4ca4238a0b923820dcc509a6f75849b

SHA1
356a192b7913b04c54574d18c28d46e6395428ab

SHA256
6b86b273ff34fce19d6b804eff5a3f5747ada4eaa22f1d49c01e52ddb7875b4b

SHA512
4dff4ea340f0a823f15d3f4f01ab62eae0e5da579ccb851f8db9dfe84c58b2b37b89903a740e1ee172da793a6e79d560e5f7f9bd058a12a280433ed6fa46510a

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp605B.tmp.bat

Filesize
159B

MD5
7ffcce3bbc45ec52e0c943e8bd00dfff

SHA1
e06779bd7ee556ad5b15c9854cf910d7f9ba05ec

SHA256
d2c97e772a2d3d0ca19187cd8612e657ca0395401215baeb735ba21df48cc0a4

SHA512
d6ae1f8783e08c8b509f5c7e6840ab3dbfe98e91fbbddace796a8a74242b396f187a46e1a832b550bb74f9bd697f465de2b4d1aefef0af90f8cf9c28bf87e557

Download Submit
memory/4488-1-0x0000000000A50000-0x0000000000A6A000-memory.dmp

Filesize
104KB

Download
memory/4488-189-0x00007FFB3B220000-0x00007FFB3BC0C000-memory.dmp

Filesize
9.9MB

Download
memory/4488-0-0x00007FFB3B223000-0x00007FFB3B224000-memory.dmp

Filesize
4KB

Download
memory/4488-183-0x00007FFB3B220000-0x00007FFB3BC0C000-memory.dmp

Filesize
9.9MB

Download
memory/4648-10-0x00007FFB3B220000-0x00007FFB3BC0C000-memory.dmp

Filesize
9.9MB

Download
memory/4648-51-0x00007FFB3B220000-0x00007FFB3BC0C000-memory.dmp

Filesize
9.9MB

Download
memory/4648-48-0x00007FFB3B220000-0x00007FFB3BC0C000-memory.dmp

Filesize
9.9MB

Download
memory/4648-25-0x00007FFB3B220000-0x00007FFB3BC0C000-memory.dmp

Filesize
9.9MB

Download
memory/4648-12-0x000001FB502D0000-0x000001FB50346000-memory.dmp

Filesize
472KB

Download
memory/4648-11-0x00007FFB3B220000-0x00007FFB3BC0C000-memory.dmp

Filesize
9.9MB

Download
memory/4648-7-0x00007FFB3B220000-0x00007FFB3BC0C000-memory.dmp

Filesize
9.9MB

Download
memory/4648-6-0x000001FB37C90000-0x000001FB37CB2000-memory.dmp

Filesize
136KB

Download