xworm | baa8ace81d5e51f20fea99bf6b8de26c594a2011b670883304e085e5a9847eb2

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

C2

full-self.gl.at.ply.gg:45212

Attributes

Install_directory
%AppData%
install_file
XClient.exe

Signatures

Detect Xworm Payload 1 IoCs

resource	yara_rule
behavioral3/memory/2320-1-0x0000000000860000-0x000000000087A000-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
5012	powershell.exe
4828	powershell.exe
3416	powershell.exe
768	powershell.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3881032017-2947584075-2120384563-1000\Control Panel\International\Geo\Nation	XClient.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-1-5-21-3881032017-2947584075-2120384563-1000\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
4996	timeout.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
5012	powershell.exe
5012	powershell.exe
4828	powershell.exe
4828	powershell.exe
3416	powershell.exe
3416	powershell.exe
768	powershell.exe
768	powershell.exe
2320	XClient.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	2320	XClient.exe
Token: SeDebugPrivilege	5012	powershell.exe
Token: SeDebugPrivilege	4828	powershell.exe
Token: SeDebugPrivilege	3416	powershell.exe
Token: SeDebugPrivilege	768	powershell.exe
Token: SeDebugPrivilege	2320	XClient.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2320	XClient.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2320 wrote to memory of 5012	2320	XClient.exe	86
PID 2320 wrote to memory of 5012	2320	XClient.exe	86
PID 2320 wrote to memory of 4828	2320	XClient.exe	88
PID 2320 wrote to memory of 4828	2320	XClient.exe	88
PID 2320 wrote to memory of 3416	2320	XClient.exe	90
PID 2320 wrote to memory of 3416	2320	XClient.exe	90
PID 2320 wrote to memory of 768	2320	XClient.exe	92
PID 2320 wrote to memory of 768	2320	XClient.exe	92
PID 2320 wrote to memory of 1996	2320	XClient.exe	97
PID 2320 wrote to memory of 1996	2320	XClient.exe	97
PID 1996 wrote to memory of 4996	1996	cmd.exe	99
PID 1996 wrote to memory of 4996	1996	cmd.exe	99

C:\Users\Admin\AppData\Local\Temp\XClient.exe
"C:\Users\Admin\AppData\Local\Temp\XClient.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2320
- 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:5012
- 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:4828
- 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:3416
- 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:768
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp1FD7.tmp.bat""
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1996
- - C:\Windows\system32\timeout.exe
    timeout 3
    3⤵
    - Delays execution with timeout.exe
    PID:4996

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

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
2KB

MD5
d85ba6ff808d9e5444a4b369f5bc2730

SHA1
31aa9d96590fff6981b315e0b391b575e4c0804a

SHA256
84739c608a73509419748e4e20e6cc4e1846056c3fe1929a8300d5a1a488202f

SHA512
8c414eb55b45212af385accc16d9d562adba2123583ce70d22b91161fe878683845512a78f04dedd4ea98ed9b174dbfa98cf696370598ad8e6fbd1e714f1f249

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

Filesize
944B

MD5
a8e8360d573a4ff072dcc6f09d992c88

SHA1
3446774433ceaf0b400073914facab11b98b6807

SHA256
bf5e284e8f95122bf75ead61c7e2b40f55c96742b05330b5b1cb7915991df13b

SHA512
4ee5167643d82082f57c42616007ef9be57f43f9731921bdf7bca611a914724ad94072d3c8f5b130fa54129e5328ccdebf37ba74339c37deb53e79df5cdf0dbe

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

Filesize
944B

MD5
e3b6cc0fbea08a0831f0026a696db8b8

SHA1
4e32202d4700061cfd80d55e42798131c9f530d4

SHA256
3284cae7b82be99d93064390ba071ba4321f3f24dd21515b37b2ca9f31b2e8d5

SHA512
6a06856f360b48c8bc8a15ffb8d7a6604ec357bcb1d0fad5d71a2cb876929a7b67eb40ba4493998ab1bbae8cb71212e124276f27d5c138a135041c27a41a0b7a

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

Filesize
944B

MD5
2b453e11296c30377ad61a79aaaa8028

SHA1
d24b574a09a27eafae2cb1f424152889c0626c50

SHA256
ecb67197af6883787011beb002c314c2cc8131bf324246e18bf9fc00a25cb29d

SHA512
5f6eb836692c95454f89b1f723a737a51554ca49dfd8e2b8b377a09bb36cb40c99b89f0d261e990a8a0a1011c816d22f25083b746a5030a2863cf9a8d87491fe

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_adphtqyz.5fk.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp1FD7.tmp.bat

Filesize
159B

MD5
9aa15f6b8abbbf31fb3848b18822b2dd

SHA1
cbc7bb31adfcb26e09f1250db21e508435b3efb0

SHA256
00e95dbd0d3c11a5e8fdefb1cd552b3fed82e20630076d4f31afbbdd340b3e87

SHA512
d9991d99fa07cd1e316f44a4e886664ba124016d0a38f57814ee833d5c60bc53f97b1b0c44378faaeddbe0a58fe19836bfdbc16de156a00ffbf72c33c98d2a0e

Download Submit
memory/2320-53-0x00007FFE03A03000-0x00007FFE03A05000-memory.dmp

Filesize
8KB

Download
memory/2320-52-0x00007FFE03A00000-0x00007FFE044C1000-memory.dmp

Filesize
10.8MB

Download
memory/2320-0-0x00007FFE03A03000-0x00007FFE03A05000-memory.dmp

Filesize
8KB

Download
memory/2320-54-0x00007FFE03A00000-0x00007FFE044C1000-memory.dmp

Filesize
10.8MB

Download
memory/2320-1-0x0000000000860000-0x000000000087A000-memory.dmp

Filesize
104KB

Download
memory/2320-60-0x00007FFE03A00000-0x00007FFE044C1000-memory.dmp

Filesize
10.8MB

Download
memory/5012-16-0x00007FFE03A00000-0x00007FFE044C1000-memory.dmp

Filesize
10.8MB

Download
memory/5012-13-0x00007FFE03A00000-0x00007FFE044C1000-memory.dmp

Filesize
10.8MB

Download
memory/5012-12-0x00007FFE03A00000-0x00007FFE044C1000-memory.dmp

Filesize
10.8MB

Download
memory/5012-2-0x000002085B710000-0x000002085B732000-memory.dmp

Filesize
136KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads