xworm | a089baba4b046b231c5008343025b97f47bab795bdebd0fb47c608053ba4d8b8

Analysis

max time kernel
149s
max time network
137s
platform
windows10-1703_x64
resource
win10-20240404-en
resource tags

arch:x64arch:x86image:win10-20240404-enlocale:en-usos:windows10-1703-x64system
submitted
26/05/2024, 02:34

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General

Target

XClient.exe
Size

183KB
MD5

2b2588dbc679d917268e4ec17783db91
SHA1

5d3d9b5e548972155ebf7fb8506eeb87ee8d1c85
SHA256

a089baba4b046b231c5008343025b97f47bab795bdebd0fb47c608053ba4d8b8
SHA512

11615bbf4477ad683b5cfd5ecf1fbffb7ec957a76b47c012de67f7540ac26b42e63c965cbc028da9430a43f340b4889c5b80de416f83364d6b8d1783c41f4c86
SSDEEP

3072:JMf71a4l72Me/sigR1b60M7MDVOyFMgBz65/M6If+3Js+3JFkKeTno:JyPrbjM7KxBt25

Score

10^/10

xworm execution rat trojan

Malware Config

Extracted

Family

xworm

Attributes

Install_directory
%AppData%
install_file
Spoofer.exe

Signatures

Detect Xworm Payload 1 IoCs

resource	yara_rule
behavioral1/memory/2452-1-0x00000000002B0000-0x00000000002E4000-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
4864	powershell.exe
976	powershell.exe
4424	powershell.exe
640	powershell.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Spoofer.lnk	XClient.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Spoofer.lnk	XClient.exe

Looks up external IP address via web service 1 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
1	ip-api.com

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
2452	XClient.exe

Suspicious behavior: EnumeratesProcesses 13 IoCs

pid	Process
4864	powershell.exe
4864	powershell.exe
4864	powershell.exe
976	powershell.exe
976	powershell.exe
976	powershell.exe
4424	powershell.exe
4424	powershell.exe
4424	powershell.exe
640	powershell.exe
640	powershell.exe
640	powershell.exe
2452	XClient.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	2452	XClient.exe
Token: SeDebugPrivilege	4864	powershell.exe
Token: SeIncreaseQuotaPrivilege	4864	powershell.exe
Token: SeSecurityPrivilege	4864	powershell.exe
Token: SeTakeOwnershipPrivilege	4864	powershell.exe
Token: SeLoadDriverPrivilege	4864	powershell.exe
Token: SeSystemProfilePrivilege	4864	powershell.exe
Token: SeSystemtimePrivilege	4864	powershell.exe
Token: SeProfSingleProcessPrivilege	4864	powershell.exe
Token: SeIncBasePriorityPrivilege	4864	powershell.exe
Token: SeCreatePagefilePrivilege	4864	powershell.exe
Token: SeBackupPrivilege	4864	powershell.exe
Token: SeRestorePrivilege	4864	powershell.exe
Token: SeShutdownPrivilege	4864	powershell.exe
Token: SeDebugPrivilege	4864	powershell.exe
Token: SeSystemEnvironmentPrivilege	4864	powershell.exe
Token: SeRemoteShutdownPrivilege	4864	powershell.exe
Token: SeUndockPrivilege	4864	powershell.exe
Token: SeManageVolumePrivilege	4864	powershell.exe
Token: 33	4864	powershell.exe
Token: 34	4864	powershell.exe
Token: 35	4864	powershell.exe
Token: 36	4864	powershell.exe
Token: SeDebugPrivilege	976	powershell.exe
Token: SeIncreaseQuotaPrivilege	976	powershell.exe
Token: SeSecurityPrivilege	976	powershell.exe
Token: SeTakeOwnershipPrivilege	976	powershell.exe
Token: SeLoadDriverPrivilege	976	powershell.exe
Token: SeSystemProfilePrivilege	976	powershell.exe
Token: SeSystemtimePrivilege	976	powershell.exe
Token: SeProfSingleProcessPrivilege	976	powershell.exe
Token: SeIncBasePriorityPrivilege	976	powershell.exe
Token: SeCreatePagefilePrivilege	976	powershell.exe
Token: SeBackupPrivilege	976	powershell.exe
Token: SeRestorePrivilege	976	powershell.exe
Token: SeShutdownPrivilege	976	powershell.exe
Token: SeDebugPrivilege	976	powershell.exe
Token: SeSystemEnvironmentPrivilege	976	powershell.exe
Token: SeRemoteShutdownPrivilege	976	powershell.exe
Token: SeUndockPrivilege	976	powershell.exe
Token: SeManageVolumePrivilege	976	powershell.exe
Token: 33	976	powershell.exe
Token: 34	976	powershell.exe
Token: 35	976	powershell.exe
Token: 36	976	powershell.exe
Token: SeDebugPrivilege	4424	powershell.exe
Token: SeIncreaseQuotaPrivilege	4424	powershell.exe
Token: SeSecurityPrivilege	4424	powershell.exe
Token: SeTakeOwnershipPrivilege	4424	powershell.exe
Token: SeLoadDriverPrivilege	4424	powershell.exe
Token: SeSystemProfilePrivilege	4424	powershell.exe
Token: SeSystemtimePrivilege	4424	powershell.exe
Token: SeProfSingleProcessPrivilege	4424	powershell.exe
Token: SeIncBasePriorityPrivilege	4424	powershell.exe
Token: SeCreatePagefilePrivilege	4424	powershell.exe
Token: SeBackupPrivilege	4424	powershell.exe
Token: SeRestorePrivilege	4424	powershell.exe
Token: SeShutdownPrivilege	4424	powershell.exe
Token: SeDebugPrivilege	4424	powershell.exe
Token: SeSystemEnvironmentPrivilege	4424	powershell.exe
Token: SeRemoteShutdownPrivilege	4424	powershell.exe
Token: SeUndockPrivilege	4424	powershell.exe
Token: SeManageVolumePrivilege	4424	powershell.exe
Token: 33	4424	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2452	XClient.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2452 wrote to memory of 4864	2452	XClient.exe	74
PID 2452 wrote to memory of 4864	2452	XClient.exe	74
PID 2452 wrote to memory of 976	2452	XClient.exe	77
PID 2452 wrote to memory of 976	2452	XClient.exe	77
PID 2452 wrote to memory of 4424	2452	XClient.exe	79
PID 2452 wrote to memory of 4424	2452	XClient.exe	79
PID 2452 wrote to memory of 640	2452	XClient.exe	81
PID 2452 wrote to memory of 640	2452	XClient.exe	81

C:\Users\Admin\AppData\Local\Temp\XClient.exe
"C:\Users\Admin\AppData\Local\Temp\XClient.exe"
1⤵
- Drops startup file
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2452
- 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:4864
- 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:976
- 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\Spoofer.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4424
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'Spoofer.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  PID:640

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Persistence

Privilege Escalation

Defense Evasion

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
31ff38da2faad227b4a58f8a9c3518e1

SHA1
7570c415eee21c58265a38fde5ce3924f04e3ee0

SHA256
86fdcb908209ecdae0d720066ca33d667cd18b530c2c88eeb4e81f5e1ba89016

SHA512
013e010214ef3d734564a6c0f5c78765e22b8e0ba714b871f0e4dfec97246bd9f22163ab725afa5194a5be8a0d9d3ddcb5ee06b895bf7b45a5864913fe6e2424

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

Filesize
1KB

MD5
7fd8c4fb2bfdf1147cffdbe626876e57

SHA1
29dcadc976789a035cad7e9c1e9fc4c28de7574d

SHA256
8e5f76bc63ffdf60e836534189ed152733668ce014df2c2713f9bd9b83368a0a

SHA512
d53f974258c282b5cb6bc348c77e34c8bdd502b7bb37303625481e00b6c491ee324d86bf8204ec4f1cfc9820eabe7c7191ed975223948feeefbc26a79d19ef76

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

Filesize
1KB

MD5
d0718d048ce8c7ef48af5802d22b8bbb

SHA1
18de622e48b52474cc7af62d77b089faf953392f

SHA256
294b9c6a3d38eae77642a9852fdc26261215a23cd400f43afc22f1ef6399c97f

SHA512
3843a681d14f59e29f59b7f3b292387e0d639d4a981dd005798f44f73e03ce74881a9a4a9d57fadfa946475b9698357baaaf8a3c33afad0eaa85e9fdfd0dd463

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_id01jyi0.4vg.ps1

Filesize
1B

MD5
c4ca4238a0b923820dcc509a6f75849b

SHA1
356a192b7913b04c54574d18c28d46e6395428ab

SHA256
6b86b273ff34fce19d6b804eff5a3f5747ada4eaa22f1d49c01e52ddb7875b4b

SHA512
4dff4ea340f0a823f15d3f4f01ab62eae0e5da579ccb851f8db9dfe84c58b2b37b89903a740e1ee172da793a6e79d560e5f7f9bd058a12a280433ed6fa46510a

Download Submit
memory/2452-0-0x00007FFB323B3000-0x00007FFB323B4000-memory.dmp

Filesize
4KB

Download
memory/2452-2-0x00007FFB323B0000-0x00007FFB32D9C000-memory.dmp

Filesize
9.9MB

Download
memory/2452-1-0x00000000002B0000-0x00000000002E4000-memory.dmp

Filesize
208KB

Download
memory/2452-187-0x00007FFB323B3000-0x00007FFB323B4000-memory.dmp

Filesize
4KB

Download
memory/2452-188-0x00007FFB323B0000-0x00007FFB32D9C000-memory.dmp

Filesize
9.9MB

Download
memory/4864-9-0x00007FFB323B0000-0x00007FFB32D9C000-memory.dmp

Filesize
9.9MB

Download
memory/4864-13-0x00007FFB323B0000-0x00007FFB32D9C000-memory.dmp

Filesize
9.9MB

Download
memory/4864-14-0x0000026E4B030000-0x0000026E4B0A6000-memory.dmp

Filesize
472KB

Download
memory/4864-52-0x00007FFB323B0000-0x00007FFB32D9C000-memory.dmp

Filesize
9.9MB

Download
memory/4864-8-0x0000026E4ADA0000-0x0000026E4ADC2000-memory.dmp

Filesize
136KB

Download
memory/4864-7-0x00007FFB323B0000-0x00007FFB32D9C000-memory.dmp

Filesize
9.9MB

Download