xworm | cc961860ee305a03c82d15f8ce5926910e327c9416cb4805d2a966e1fc93b98e

General

Target

XClientasdsqds.exe
Size

72KB
MD5

d214bb3e4684942408b51c83c1922d09
SHA1

caa581809f6ab07741e31b884a40253fab903e90
SHA256

cc961860ee305a03c82d15f8ce5926910e327c9416cb4805d2a966e1fc93b98e
SHA512

5dbe0e513e398f1afaa35d9da81f311f608d29a3a417322cce8a04e00b8a466a2dd6c48f26dae532f7818c08fa60bba8b165357167881780a0f1bcfe43126e0e
SSDEEP

1536:8gmgn/ftO1WQmaVkPDNcGbEq2a3L6IBynO7luKf5:8twftOwRbEqh3hYO7V5

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

C2

greater-wallet.gl.at.ply.gg:6062

Attributes

Install_directory
%Temp%
install_file
svchost.exe

Signatures

Detect Xworm Payload 4 IoCs

Processes:

resource	yara_rule
behavioral1/memory/992-1-0x0000000000900000-0x0000000000918000-memory.dmp	family_xworm
C:\Users\Admin\AppData\Local\Temp\svchost	family_xworm
behavioral1/memory/1260-36-0x00000000001E0000-0x00000000001F8000-memory.dmp	family_xworm
behavioral1/memory/2156-39-0x00000000000B0000-0x00000000000C8000-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

Processes:

powershell.exepowershell.exepowershell.exepowershell.exe

pid process

2680 powershell.exe
2440 powershell.exe
2416 powershell.exe
2932 powershell.exe

pid	process
2680	powershell.exe
2440	powershell.exe
2416	powershell.exe
2932	powershell.exe

Drops startup file 2 IoCs

Processes:

XClientasdsqds.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\svchost.lnk	XClientasdsqds.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\svchost.lnk	XClientasdsqds.exe

Executes dropped EXE 2 IoCs

Processes:

svchostsvchost

pid process

1260 svchost
2156 svchost

pid	process
1260	svchost
2156	svchost

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

XClientasdsqds.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-481678230-3773327859-3495911762-1000\Software\Microsoft\Windows\CurrentVersion\Run\svchost = "C:\\Users\\Admin\\AppData\\Local\\Temp\\svchost"	XClientasdsqds.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.

Processes:

flow ioc

4 ip-api.com
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task/Job
T1053

Processes:

schtasks.exe

pid process

2748 schtasks.exe
Suspicious behavior: EnumeratesProcesses 5 IoCs

Processes:

powershell.exepowershell.exepowershell.exepowershell.exeXClientasdsqds.exe

pid process

2680 powershell.exe
2440 powershell.exe
2416 powershell.exe
2932 powershell.exe
992 XClientasdsqds.exe

flow	ioc
4	ip-api.com

pid	process
2748	schtasks.exe

pid	process
2680	powershell.exe
2440	powershell.exe
2416	powershell.exe
2932	powershell.exe
992	XClientasdsqds.exe

Suspicious use of AdjustPrivilegeToken 8 IoCs

Processes:

XClientasdsqds.exepowershell.exepowershell.exepowershell.exepowershell.exesvchostsvchost

description	pid	process
Token: SeDebugPrivilege	992	XClientasdsqds.exe
Token: SeDebugPrivilege	2680	powershell.exe
Token: SeDebugPrivilege	2440	powershell.exe
Token: SeDebugPrivilege	2416	powershell.exe
Token: SeDebugPrivilege	2932	powershell.exe
Token: SeDebugPrivilege	992	XClientasdsqds.exe
Token: SeDebugPrivilege	1260	svchost
Token: SeDebugPrivilege	2156	svchost

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

XClientasdsqds.exe

pid process

992 XClientasdsqds.exe

pid	process
992	XClientasdsqds.exe

Suspicious use of WriteProcessMemory 21 IoCs

Processes:

XClientasdsqds.exetaskeng.exe

description	pid	process	target process
PID 992 wrote to memory of 2680	992	XClientasdsqds.exe	powershell.exe
PID 992 wrote to memory of 2680	992	XClientasdsqds.exe	powershell.exe
PID 992 wrote to memory of 2680	992	XClientasdsqds.exe	powershell.exe
PID 992 wrote to memory of 2440	992	XClientasdsqds.exe	powershell.exe
PID 992 wrote to memory of 2440	992	XClientasdsqds.exe	powershell.exe
PID 992 wrote to memory of 2440	992	XClientasdsqds.exe	powershell.exe
PID 992 wrote to memory of 2416	992	XClientasdsqds.exe	powershell.exe
PID 992 wrote to memory of 2416	992	XClientasdsqds.exe	powershell.exe
PID 992 wrote to memory of 2416	992	XClientasdsqds.exe	powershell.exe
PID 992 wrote to memory of 2932	992	XClientasdsqds.exe	powershell.exe
PID 992 wrote to memory of 2932	992	XClientasdsqds.exe	powershell.exe
PID 992 wrote to memory of 2932	992	XClientasdsqds.exe	powershell.exe
PID 992 wrote to memory of 2748	992	XClientasdsqds.exe	schtasks.exe
PID 992 wrote to memory of 2748	992	XClientasdsqds.exe	schtasks.exe
PID 992 wrote to memory of 2748	992	XClientasdsqds.exe	schtasks.exe
PID 2656 wrote to memory of 1260	2656	taskeng.exe	svchost
PID 2656 wrote to memory of 1260	2656	taskeng.exe	svchost
PID 2656 wrote to memory of 1260	2656	taskeng.exe	svchost
PID 2656 wrote to memory of 2156	2656	taskeng.exe	svchost
PID 2656 wrote to memory of 2156	2656	taskeng.exe	svchost
PID 2656 wrote to memory of 2156	2656	taskeng.exe	svchost

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Users\Admin\AppData\Local\Temp\XClientasdsqds.exe
"C:\Users\Admin\AppData\Local\Temp\XClientasdsqds.exe"
1⤵
- Drops startup file
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:992

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\XClientasdsqds.exe'
2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2680

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'XClientasdsqds.exe'
2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2440

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\svchost'
2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2416

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'svchost'
2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2932

C:\Windows\System32\schtasks.exe
"C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "svchost" /tr "C:\Users\Admin\AppData\Local\Temp\svchost"
2⤵
- Creates scheduled task(s)
PID:2748

C:\Windows\system32\taskeng.exe
taskeng.exe {64EC2DB2-DF10-4E96-9049-6FAD29C402FA} S-1-5-21-481678230-3773327859-3495911762-1000:UIBNQNMA\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:2656

C:\Users\Admin\AppData\Local\Temp\svchost
C:\Users\Admin\AppData\Local\Temp\svchost
2⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:1260

C:\Users\Admin\AppData\Local\Temp\svchost
C:\Users\Admin\AppData\Local\Temp\svchost
2⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:2156

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

Scheduled Task/Job

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

Scheduled Task/Job

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

Scheduled Task/Job

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Query Registry

1

T1012

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

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Downloads

C:\Users\Admin\AppData\Local\Temp\svchost
Filesize
72KB

MD5
d214bb3e4684942408b51c83c1922d09

SHA1
caa581809f6ab07741e31b884a40253fab903e90

SHA256
cc961860ee305a03c82d15f8ce5926910e327c9416cb4805d2a966e1fc93b98e

SHA512
5dbe0e513e398f1afaa35d9da81f311f608d29a3a417322cce8a04e00b8a466a2dd6c48f26dae532f7818c08fa60bba8b165357167881780a0f1bcfe43126e0e

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\590aee7bdd69b59b.customDestinations-ms
Filesize
7KB

MD5
8939284f00aebfab136d9269aff55786

SHA1
04037b501e74d2bb2495508d195fd8b0f7847207

SHA256
36539355dbcfd9d1baa8a019b558e68d1a909cb570e23bd8afacf6861c37319e

SHA512
82e49e1e41ba96944400335177a4aa762767598b6390b2d15535833050555c292b006efa830b84f8735d742aa20455fe4567ad065e28355257d1c3acfd33ca95

Download Submit
\??\PIPE\srvsvc
MD5
d41d8cd98f00b204e9800998ecf8427e

SHA1
da39a3ee5e6b4b0d3255bfef95601890afd80709

SHA256
e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

SHA512
cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

Download Submit
memory/992-2-0x000007FEF5BC0000-0x000007FEF65AC000-memory.dmp

Filesize
9.9MB

Download
memory/992-0-0x000007FEF5BC3000-0x000007FEF5BC4000-memory.dmp

Filesize
4KB

Download
memory/992-31-0x000007FEF5BC3000-0x000007FEF5BC4000-memory.dmp

Filesize
4KB

Download
memory/992-32-0x000007FEF5BC0000-0x000007FEF65AC000-memory.dmp

Filesize
9.9MB

Download
memory/992-1-0x0000000000900000-0x0000000000918000-memory.dmp

Filesize
96KB

Download
memory/1260-36-0x00000000001E0000-0x00000000001F8000-memory.dmp

Filesize
96KB

Download
memory/2156-39-0x00000000000B0000-0x00000000000C8000-memory.dmp

Filesize
96KB

Download
memory/2440-15-0x000000001B800000-0x000000001BAE2000-memory.dmp

Filesize
2.9MB

Download
memory/2440-16-0x0000000001DA0000-0x0000000001DA8000-memory.dmp

Filesize
32KB

Download
memory/2680-7-0x00000000028A0000-0x0000000002920000-memory.dmp

Filesize
512KB

Download
memory/2680-8-0x000000001B4E0000-0x000000001B7C2000-memory.dmp

Filesize
2.9MB

Download
memory/2680-9-0x0000000001F10000-0x0000000001F18000-memory.dmp

Filesize
32KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads