xworm | baa8ace81d5e51f20fea99bf6b8de26c594a2011b670883304e085e5a9847eb2

Analysis

max time kernel
134s
max time network
142s
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 20:59

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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/3640-0-0x0000000000030000-0x000000000004A000-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
756	powershell.exe
5012	powershell.exe
2180	powershell.exe
2916	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-1-5-21-1687926120-3022217735-1146543763-1000\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
756	powershell.exe
756	powershell.exe
756	powershell.exe
5012	powershell.exe
5012	powershell.exe
5012	powershell.exe
2180	powershell.exe
2180	powershell.exe
2180	powershell.exe
2916	powershell.exe
2916	powershell.exe
2916	powershell.exe
3640	XClient.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	3640	XClient.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	5012	powershell.exe
Token: SeIncreaseQuotaPrivilege	5012	powershell.exe
Token: SeSecurityPrivilege	5012	powershell.exe
Token: SeTakeOwnershipPrivilege	5012	powershell.exe
Token: SeLoadDriverPrivilege	5012	powershell.exe
Token: SeSystemProfilePrivilege	5012	powershell.exe
Token: SeSystemtimePrivilege	5012	powershell.exe
Token: SeProfSingleProcessPrivilege	5012	powershell.exe
Token: SeIncBasePriorityPrivilege	5012	powershell.exe
Token: SeCreatePagefilePrivilege	5012	powershell.exe
Token: SeBackupPrivilege	5012	powershell.exe
Token: SeRestorePrivilege	5012	powershell.exe
Token: SeShutdownPrivilege	5012	powershell.exe
Token: SeDebugPrivilege	5012	powershell.exe
Token: SeSystemEnvironmentPrivilege	5012	powershell.exe
Token: SeRemoteShutdownPrivilege	5012	powershell.exe
Token: SeUndockPrivilege	5012	powershell.exe
Token: SeManageVolumePrivilege	5012	powershell.exe
Token: 33	5012	powershell.exe
Token: 34	5012	powershell.exe
Token: 35	5012	powershell.exe
Token: 36	5012	powershell.exe
Token: SeDebugPrivilege	2180	powershell.exe
Token: SeIncreaseQuotaPrivilege	2180	powershell.exe
Token: SeSecurityPrivilege	2180	powershell.exe
Token: SeTakeOwnershipPrivilege	2180	powershell.exe
Token: SeLoadDriverPrivilege	2180	powershell.exe
Token: SeSystemProfilePrivilege	2180	powershell.exe
Token: SeSystemtimePrivilege	2180	powershell.exe
Token: SeProfSingleProcessPrivilege	2180	powershell.exe
Token: SeIncBasePriorityPrivilege	2180	powershell.exe
Token: SeCreatePagefilePrivilege	2180	powershell.exe
Token: SeBackupPrivilege	2180	powershell.exe
Token: SeRestorePrivilege	2180	powershell.exe
Token: SeShutdownPrivilege	2180	powershell.exe
Token: SeDebugPrivilege	2180	powershell.exe
Token: SeSystemEnvironmentPrivilege	2180	powershell.exe
Token: SeRemoteShutdownPrivilege	2180	powershell.exe
Token: SeUndockPrivilege	2180	powershell.exe
Token: SeManageVolumePrivilege	2180	powershell.exe
Token: 33	2180	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3640	XClient.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 3640 wrote to memory of 756	3640	XClient.exe	73
PID 3640 wrote to memory of 756	3640	XClient.exe	73
PID 3640 wrote to memory of 5012	3640	XClient.exe	76
PID 3640 wrote to memory of 5012	3640	XClient.exe	76
PID 3640 wrote to memory of 2180	3640	XClient.exe	78
PID 3640 wrote to memory of 2180	3640	XClient.exe	78
PID 3640 wrote to memory of 2916	3640	XClient.exe	80
PID 3640 wrote to memory of 2916	3640	XClient.exe	80

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:3640
- 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:756
- 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:5012
- 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:2180
- 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:2916

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
ec93a61e32040e36f5f8b31ee9423f89

SHA1
ed6d673a1ae7d71f6d5a61bfc2f30afa714e9584

SHA256
d19827cc44eea4a88dadf42468f4b260aa997301ec95795101490cf21a6a2bdc

SHA512
db5935401bff12a993e7cb853a46c156fabd029e2d2ec89fc2ac7ca38054e892583a0ac7e83247cc378e513fb76a6f6712f413a77f240ef8ae5afa734b069b15

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

Filesize
1KB

MD5
07eda07e0ade382297edb8e6edc3a4cf

SHA1
530911ae46df183a010b1f8b2255287758d47599

SHA256
3e04e8588104646d8b0caa56496f1c3b410e90295cba58082f108e3e095898e0

SHA512
2ea10fb9f6c86ad0d088aacbdca8a2889bac96dba06dad68eaa320e5141ad55ead7233441d16b5bbb0519e41a392310abf8a5f96ba5896de95cec132e93c0593

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

Filesize
1KB

MD5
d048283e5253b987e148263690e3c8c1

SHA1
6760e255b936ba936c32f5c26ed63edd430c1823

SHA256
d9b77e4c6664ebc54807235d75230d2858af96eef83ec53d733ae6226b081f3c

SHA512
467a5e68a5a86b3e173f149ef6c86e5f562345643129aa80343cbfd1d99150e04660cec4fbed177f82e8e2e25ec9ad239f2e0e5fb74eb09913e5f2156a4cce23

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_rpyubbmq.gdl.ps1

Filesize
1B

MD5
c4ca4238a0b923820dcc509a6f75849b

SHA1
356a192b7913b04c54574d18c28d46e6395428ab

SHA256
6b86b273ff34fce19d6b804eff5a3f5747ada4eaa22f1d49c01e52ddb7875b4b

SHA512
4dff4ea340f0a823f15d3f4f01ab62eae0e5da579ccb851f8db9dfe84c58b2b37b89903a740e1ee172da793a6e79d560e5f7f9bd058a12a280433ed6fa46510a

Download Submit
memory/756-8-0x00007FFB54CE0000-0x00007FFB556CC000-memory.dmp

Filesize
9.9MB

Download
memory/756-12-0x000001E29E7B0000-0x000001E29E826000-memory.dmp

Filesize
472KB

Download
memory/756-9-0x00007FFB54CE0000-0x00007FFB556CC000-memory.dmp

Filesize
9.9MB

Download
memory/756-41-0x00007FFB54CE0000-0x00007FFB556CC000-memory.dmp

Filesize
9.9MB

Download
memory/756-48-0x00007FFB54CE0000-0x00007FFB556CC000-memory.dmp

Filesize
9.9MB

Download
memory/756-52-0x00007FFB54CE0000-0x00007FFB556CC000-memory.dmp

Filesize
9.9MB

Download
memory/756-7-0x00007FFB54CE0000-0x00007FFB556CC000-memory.dmp

Filesize
9.9MB

Download
memory/756-6-0x000001E29E4D0000-0x000001E29E4F2000-memory.dmp

Filesize
136KB

Download
memory/3640-0-0x0000000000030000-0x000000000004A000-memory.dmp

Filesize
104KB

Download
memory/3640-1-0x00007FFB54CE3000-0x00007FFB54CE4000-memory.dmp

Filesize
4KB

Download
memory/3640-184-0x00007FFB54CE0000-0x00007FFB556CC000-memory.dmp

Filesize
9.9MB

Download
memory/3640-185-0x00007FFB54CE0000-0x00007FFB556CC000-memory.dmp

Filesize
9.9MB

Download