xworm | baa8ace81d5e51f20fea99bf6b8de26c594a2011b670883304e085e5a9847eb2

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 20:56

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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/1300-1-0x00000000008D0000-0x00000000008EA000-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
5032	powershell.exe
4556	powershell.exe
2172	powershell.exe
524	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
4820	timeout.exe

Suspicious behavior: EnumeratesProcesses 13 IoCs

pid	Process
5032	powershell.exe
5032	powershell.exe
5032	powershell.exe
4556	powershell.exe
4556	powershell.exe
4556	powershell.exe
2172	powershell.exe
2172	powershell.exe
2172	powershell.exe
524	powershell.exe
524	powershell.exe
524	powershell.exe
1300	XClient.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	1300	XClient.exe
Token: SeDebugPrivilege	5032	powershell.exe
Token: SeIncreaseQuotaPrivilege	5032	powershell.exe
Token: SeSecurityPrivilege	5032	powershell.exe
Token: SeTakeOwnershipPrivilege	5032	powershell.exe
Token: SeLoadDriverPrivilege	5032	powershell.exe
Token: SeSystemProfilePrivilege	5032	powershell.exe
Token: SeSystemtimePrivilege	5032	powershell.exe
Token: SeProfSingleProcessPrivilege	5032	powershell.exe
Token: SeIncBasePriorityPrivilege	5032	powershell.exe
Token: SeCreatePagefilePrivilege	5032	powershell.exe
Token: SeBackupPrivilege	5032	powershell.exe
Token: SeRestorePrivilege	5032	powershell.exe
Token: SeShutdownPrivilege	5032	powershell.exe
Token: SeDebugPrivilege	5032	powershell.exe
Token: SeSystemEnvironmentPrivilege	5032	powershell.exe
Token: SeRemoteShutdownPrivilege	5032	powershell.exe
Token: SeUndockPrivilege	5032	powershell.exe
Token: SeManageVolumePrivilege	5032	powershell.exe
Token: 33	5032	powershell.exe
Token: 34	5032	powershell.exe
Token: 35	5032	powershell.exe
Token: 36	5032	powershell.exe
Token: SeDebugPrivilege	4556	powershell.exe
Token: SeIncreaseQuotaPrivilege	4556	powershell.exe
Token: SeSecurityPrivilege	4556	powershell.exe
Token: SeTakeOwnershipPrivilege	4556	powershell.exe
Token: SeLoadDriverPrivilege	4556	powershell.exe
Token: SeSystemProfilePrivilege	4556	powershell.exe
Token: SeSystemtimePrivilege	4556	powershell.exe
Token: SeProfSingleProcessPrivilege	4556	powershell.exe
Token: SeIncBasePriorityPrivilege	4556	powershell.exe
Token: SeCreatePagefilePrivilege	4556	powershell.exe
Token: SeBackupPrivilege	4556	powershell.exe
Token: SeRestorePrivilege	4556	powershell.exe
Token: SeShutdownPrivilege	4556	powershell.exe
Token: SeDebugPrivilege	4556	powershell.exe
Token: SeSystemEnvironmentPrivilege	4556	powershell.exe
Token: SeRemoteShutdownPrivilege	4556	powershell.exe
Token: SeUndockPrivilege	4556	powershell.exe
Token: SeManageVolumePrivilege	4556	powershell.exe
Token: 33	4556	powershell.exe
Token: 34	4556	powershell.exe
Token: 35	4556	powershell.exe
Token: 36	4556	powershell.exe
Token: SeDebugPrivilege	2172	powershell.exe
Token: SeIncreaseQuotaPrivilege	2172	powershell.exe
Token: SeSecurityPrivilege	2172	powershell.exe
Token: SeTakeOwnershipPrivilege	2172	powershell.exe
Token: SeLoadDriverPrivilege	2172	powershell.exe
Token: SeSystemProfilePrivilege	2172	powershell.exe
Token: SeSystemtimePrivilege	2172	powershell.exe
Token: SeProfSingleProcessPrivilege	2172	powershell.exe
Token: SeIncBasePriorityPrivilege	2172	powershell.exe
Token: SeCreatePagefilePrivilege	2172	powershell.exe
Token: SeBackupPrivilege	2172	powershell.exe
Token: SeRestorePrivilege	2172	powershell.exe
Token: SeShutdownPrivilege	2172	powershell.exe
Token: SeDebugPrivilege	2172	powershell.exe
Token: SeSystemEnvironmentPrivilege	2172	powershell.exe
Token: SeRemoteShutdownPrivilege	2172	powershell.exe
Token: SeUndockPrivilege	2172	powershell.exe
Token: SeManageVolumePrivilege	2172	powershell.exe
Token: 33	2172	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1300	XClient.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 1300 wrote to memory of 5032	1300	XClient.exe	70
PID 1300 wrote to memory of 5032	1300	XClient.exe	70
PID 1300 wrote to memory of 4556	1300	XClient.exe	73
PID 1300 wrote to memory of 4556	1300	XClient.exe	73
PID 1300 wrote to memory of 2172	1300	XClient.exe	75
PID 1300 wrote to memory of 2172	1300	XClient.exe	75
PID 1300 wrote to memory of 524	1300	XClient.exe	77
PID 1300 wrote to memory of 524	1300	XClient.exe	77
PID 1300 wrote to memory of 3380	1300	XClient.exe	80
PID 1300 wrote to memory of 3380	1300	XClient.exe	80
PID 3380 wrote to memory of 4820	3380	cmd.exe	82
PID 3380 wrote to memory of 4820	3380	cmd.exe	82

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:1300
- 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:5032
- 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:4556
- 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:2172
- 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:524
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp8B63.tmp.bat""
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3380
- - C:\Windows\system32\timeout.exe
    timeout 3
    3⤵
    - Delays execution with timeout.exe
    PID:4820

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
2f51a18163d12f91a987bc474ad2c213

SHA1
7aac432446cfc41c94b11b3883a045e9013c3171

SHA256
13e2ad692f17de2cf9a49493fb0f10795a093c36ce97bcfa0626db24cc8db79d

SHA512
dd1494320a1091c1f0dd3c05af9b4e31fd79fee8b8acfbf4972cb745ad6451d3324762e9a2185f76180e1828abebf934188e27bff9efb6b9a5bd91434e89fe7f

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

Filesize
1KB

MD5
f92eefcc04fd18802ac570b765950728

SHA1
0d565401a22694afa45c4b02c5807fe6d05d1074

SHA256
b42c3e9e6a7d4dde56cd808912918b6aa7b122857f25e843384002d12f792d93

SHA512
79aa8821b480d8c508a3d591018d0b67bc265352954f352d411a6cb92709fa4b25ea1276cded0eea5b46fb3e78f1987806fd7a22e6d4d7f1faab23cb4de45dc6

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

Filesize
1KB

MD5
5eccf9190a7513d116dea2010a24573b

SHA1
a544a759eb2086fab3ff06c61165808f7da91190

SHA256
31fec457a923990335244508f94e23d295d9138aef086ca811d1aacc5cf87e28

SHA512
8b6d21dcd3d5103b742a5d64864d6714c5f1158260cc24b37bebc4fc67d4b73e02fc16f7419faf2b3ffe7137a49035b646515ce401b04326c31cd237c7a504a0

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_djnjylqj.do2.ps1

Filesize
1B

MD5
c4ca4238a0b923820dcc509a6f75849b

SHA1
356a192b7913b04c54574d18c28d46e6395428ab

SHA256
6b86b273ff34fce19d6b804eff5a3f5747ada4eaa22f1d49c01e52ddb7875b4b

SHA512
4dff4ea340f0a823f15d3f4f01ab62eae0e5da579ccb851f8db9dfe84c58b2b37b89903a740e1ee172da793a6e79d560e5f7f9bd058a12a280433ed6fa46510a

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp8B63.tmp.bat

Filesize
159B

MD5
5d66df00fe3dec40488d32231ad848de

SHA1
1845687eecf8add179827a59508da529945cf611

SHA256
041b5522cfd8b6d51c4a85aa902f82b47349340d008e4166e253f97a8d75a474

SHA512
fe58decc8ebbbd0159d738f544deb7d5f96b711f0d1ffe8fc18da0872ea90448a1f7a31e6a30467f15416a647c0b22892029f5fe3fea2c09b1a3c61af865d8fc

Download Submit
memory/1300-1-0x00000000008D0000-0x00000000008EA000-memory.dmp

Filesize
104KB

Download
memory/1300-191-0x00007FF98D080000-0x00007FF98DA6C000-memory.dmp

Filesize
9.9MB

Download
memory/1300-0-0x00007FF98D083000-0x00007FF98D084000-memory.dmp

Filesize
4KB

Download
memory/1300-185-0x00007FF98D080000-0x00007FF98DA6C000-memory.dmp

Filesize
9.9MB

Download
memory/1300-184-0x00007FF98D080000-0x00007FF98DA6C000-memory.dmp

Filesize
9.9MB

Download
memory/5032-10-0x00007FF98D080000-0x00007FF98DA6C000-memory.dmp

Filesize
9.9MB

Download
memory/5032-52-0x00007FF98D080000-0x00007FF98DA6C000-memory.dmp

Filesize
9.9MB

Download
memory/5032-48-0x00007FF98D080000-0x00007FF98DA6C000-memory.dmp

Filesize
9.9MB

Download
memory/5032-41-0x00007FF98D080000-0x00007FF98DA6C000-memory.dmp

Filesize
9.9MB

Download
memory/5032-12-0x0000023FF5880000-0x0000023FF58F6000-memory.dmp

Filesize
472KB

Download
memory/5032-11-0x00007FF98D080000-0x00007FF98DA6C000-memory.dmp

Filesize
9.9MB

Download
memory/5032-7-0x00007FF98D080000-0x00007FF98DA6C000-memory.dmp

Filesize
9.9MB

Download
memory/5032-6-0x0000023FF5580000-0x0000023FF55A2000-memory.dmp

Filesize
136KB

Download