xworm | baa8ace81d5e51f20fea99bf6b8de26c594a2011b670883304e085e5a9847eb2

Analysis

max time kernel
141s
max time network
147s
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/4144-0-0x0000000000B10000-0x0000000000B2A000-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
1704	powershell.exe
5056	powershell.exe
2724	powershell.exe
2204	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
2724	powershell.exe
2724	powershell.exe
2724	powershell.exe
2204	powershell.exe
2204	powershell.exe
2204	powershell.exe
1704	powershell.exe
1704	powershell.exe
1704	powershell.exe
5056	powershell.exe
5056	powershell.exe
5056	powershell.exe
4144	XClient.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	4144	XClient.exe
Token: SeDebugPrivilege	2724	powershell.exe
Token: SeIncreaseQuotaPrivilege	2724	powershell.exe
Token: SeSecurityPrivilege	2724	powershell.exe
Token: SeTakeOwnershipPrivilege	2724	powershell.exe
Token: SeLoadDriverPrivilege	2724	powershell.exe
Token: SeSystemProfilePrivilege	2724	powershell.exe
Token: SeSystemtimePrivilege	2724	powershell.exe
Token: SeProfSingleProcessPrivilege	2724	powershell.exe
Token: SeIncBasePriorityPrivilege	2724	powershell.exe
Token: SeCreatePagefilePrivilege	2724	powershell.exe
Token: SeBackupPrivilege	2724	powershell.exe
Token: SeRestorePrivilege	2724	powershell.exe
Token: SeShutdownPrivilege	2724	powershell.exe
Token: SeDebugPrivilege	2724	powershell.exe
Token: SeSystemEnvironmentPrivilege	2724	powershell.exe
Token: SeRemoteShutdownPrivilege	2724	powershell.exe
Token: SeUndockPrivilege	2724	powershell.exe
Token: SeManageVolumePrivilege	2724	powershell.exe
Token: 33	2724	powershell.exe
Token: 34	2724	powershell.exe
Token: 35	2724	powershell.exe
Token: 36	2724	powershell.exe
Token: SeDebugPrivilege	2204	powershell.exe
Token: SeIncreaseQuotaPrivilege	2204	powershell.exe
Token: SeSecurityPrivilege	2204	powershell.exe
Token: SeTakeOwnershipPrivilege	2204	powershell.exe
Token: SeLoadDriverPrivilege	2204	powershell.exe
Token: SeSystemProfilePrivilege	2204	powershell.exe
Token: SeSystemtimePrivilege	2204	powershell.exe
Token: SeProfSingleProcessPrivilege	2204	powershell.exe
Token: SeIncBasePriorityPrivilege	2204	powershell.exe
Token: SeCreatePagefilePrivilege	2204	powershell.exe
Token: SeBackupPrivilege	2204	powershell.exe
Token: SeRestorePrivilege	2204	powershell.exe
Token: SeShutdownPrivilege	2204	powershell.exe
Token: SeDebugPrivilege	2204	powershell.exe
Token: SeSystemEnvironmentPrivilege	2204	powershell.exe
Token: SeRemoteShutdownPrivilege	2204	powershell.exe
Token: SeUndockPrivilege	2204	powershell.exe
Token: SeManageVolumePrivilege	2204	powershell.exe
Token: 33	2204	powershell.exe
Token: 34	2204	powershell.exe
Token: 35	2204	powershell.exe
Token: 36	2204	powershell.exe
Token: SeDebugPrivilege	1704	powershell.exe
Token: SeIncreaseQuotaPrivilege	1704	powershell.exe
Token: SeSecurityPrivilege	1704	powershell.exe
Token: SeTakeOwnershipPrivilege	1704	powershell.exe
Token: SeLoadDriverPrivilege	1704	powershell.exe
Token: SeSystemProfilePrivilege	1704	powershell.exe
Token: SeSystemtimePrivilege	1704	powershell.exe
Token: SeProfSingleProcessPrivilege	1704	powershell.exe
Token: SeIncBasePriorityPrivilege	1704	powershell.exe
Token: SeCreatePagefilePrivilege	1704	powershell.exe
Token: SeBackupPrivilege	1704	powershell.exe
Token: SeRestorePrivilege	1704	powershell.exe
Token: SeShutdownPrivilege	1704	powershell.exe
Token: SeDebugPrivilege	1704	powershell.exe
Token: SeSystemEnvironmentPrivilege	1704	powershell.exe
Token: SeRemoteShutdownPrivilege	1704	powershell.exe
Token: SeUndockPrivilege	1704	powershell.exe
Token: SeManageVolumePrivilege	1704	powershell.exe
Token: 33	1704	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4144	XClient.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 4144 wrote to memory of 2724	4144	XClient.exe	74
PID 4144 wrote to memory of 2724	4144	XClient.exe	74
PID 4144 wrote to memory of 2204	4144	XClient.exe	77
PID 4144 wrote to memory of 2204	4144	XClient.exe	77
PID 4144 wrote to memory of 1704	4144	XClient.exe	79
PID 4144 wrote to memory of 1704	4144	XClient.exe	79
PID 4144 wrote to memory of 5056	4144	XClient.exe	81
PID 4144 wrote to memory of 5056	4144	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:4144
- 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:2724
- 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:2204
- 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:1704
- 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:5056

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
0c8024f33f8ba74065f45280501f297b

SHA1
cc6553e92ba363804bcd2d6191342707edca95d2

SHA256
3860d7b5611d1ba75606516f9d841ddd806bd975b000111a605a06f8026fd30c

SHA512
180232d4fb132c0e6dfbdc191cb6f0dffd20f67c1f1f93e539decbf9250bbd86f9f6b4b354520afd12acdc5b6fd494f3f7726b801a55a76b197ad38849683266

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

Filesize
1KB

MD5
621ced8d6fc082aa3f5289bd8b23789b

SHA1
37791b32e521d2cee56dd089b3a7670b8ff5e19b

SHA256
041129a8ffc33ed0ece9e6a03d77d5bf6a84d3dcf2d8706fafc442f6eb4729f8

SHA512
5f2d2ee29f4a068bd3a52b0dd5bfc60d7d96fdb3ec6e1d573205d6335ff995d713c3bbd4298ccb1a20c8c750e128f8680c1f4aa499df5179941e4ff15fa032fa

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

Filesize
1KB

MD5
12ce32cdb860ea27c099070bd8739917

SHA1
0316c3dcd8f5926dc125427a2220526e53b2b1c6

SHA256
cea8621365f1e4a19ccdbc46ef431635352d68753fc939f7412df3181080f6bd

SHA512
69da9c85c8068dfcef7267154215047aa3743a80724b60558f22c66237e04b24737d14dea19b7d8d8a7236da32d4fe9b4a48af04f22f61f54c5a69af1bc0ca95

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_cp0qsbun.kq0.ps1

Filesize
1B

MD5
c4ca4238a0b923820dcc509a6f75849b

SHA1
356a192b7913b04c54574d18c28d46e6395428ab

SHA256
6b86b273ff34fce19d6b804eff5a3f5747ada4eaa22f1d49c01e52ddb7875b4b

SHA512
4dff4ea340f0a823f15d3f4f01ab62eae0e5da579ccb851f8db9dfe84c58b2b37b89903a740e1ee172da793a6e79d560e5f7f9bd058a12a280433ed6fa46510a

Download Submit
memory/2724-10-0x00000219267E0000-0x0000021926856000-memory.dmp

Filesize
472KB

Download
memory/2724-11-0x00007FFD5A820000-0x00007FFD5B20C000-memory.dmp

Filesize
9.9MB

Download
memory/2724-24-0x00007FFD5A820000-0x00007FFD5B20C000-memory.dmp

Filesize
9.9MB

Download
memory/2724-41-0x00007FFD5A820000-0x00007FFD5B20C000-memory.dmp

Filesize
9.9MB

Download
memory/2724-48-0x00007FFD5A820000-0x00007FFD5B20C000-memory.dmp

Filesize
9.9MB

Download
memory/2724-52-0x00007FFD5A820000-0x00007FFD5B20C000-memory.dmp

Filesize
9.9MB

Download
memory/2724-9-0x00007FFD5A820000-0x00007FFD5B20C000-memory.dmp

Filesize
9.9MB

Download
memory/2724-6-0x00000219266B0000-0x00000219266D2000-memory.dmp

Filesize
136KB

Download
memory/4144-0-0x0000000000B10000-0x0000000000B2A000-memory.dmp

Filesize
104KB

Download
memory/4144-1-0x00007FFD5A823000-0x00007FFD5A824000-memory.dmp

Filesize
4KB

Download
memory/4144-184-0x00007FFD5A820000-0x00007FFD5B20C000-memory.dmp

Filesize
9.9MB

Download
memory/4144-185-0x00007FFD5A823000-0x00007FFD5A824000-memory.dmp

Filesize
4KB

Download
memory/4144-186-0x00007FFD5A820000-0x00007FFD5B20C000-memory.dmp

Filesize
9.9MB

Download