xworm | c6451291df83bdd8b0af55160337e37a0f82cc3611475c05728bc50cd9777a5d

General

Target

XClient.exe
Size

245KB
MD5

8514e447cbf1f4e469b068e00c081976
SHA1

63bf10cb68dec396255cb6c541c4120280c0b237
SHA256

c6451291df83bdd8b0af55160337e37a0f82cc3611475c05728bc50cd9777a5d
SHA512

68c75b3b2d74cb2fb154ba2c133fe0b2604aab553915d69348ba7c461558c6937b478dfaa208af30316744ba16f3c3f26b40e7fe9e4e6d993f9c8bb14402599b
SSDEEP

6144:6dfCUJQb8RaGHUhcX7elbKTua9bfF/H9d9n:VURaGH3X3u+

Score

10^/10

xworm execution rat trojan

Malware Config

Extracted

Family

xworm

C2

140.99.97.156:7000

Attributes

Install_directory
%ProgramData%
install_file
VLC_Media.exe

Signatures

Detect Xworm Payload 1 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1744-1-0x0000000000AA0000-0x0000000000AE2000-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

2924 powershell.exe
2548 powershell.exe
2544 powershell.exe
1800 powershell.exe

pid	process
2924	powershell.exe
2548	powershell.exe
2544	powershell.exe
1800	powershell.exe

Drops startup file 2 IoCs

Processes:

XClient.exe

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

Processes:

flow ioc

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

System Information Discovery
T1082
Suspicious behavior: EnumeratesProcesses 5 IoCs

Processes:

powershell.exepowershell.exepowershell.exepowershell.exeXClient.exe

pid process

2924 powershell.exe
2548 powershell.exe
2544 powershell.exe
1800 powershell.exe
1744 XClient.exe

flow	ioc
2	ip-api.com

pid	process
2924	powershell.exe
2548	powershell.exe
2544	powershell.exe
1800	powershell.exe
1744	XClient.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

Processes:

XClient.exepowershell.exepowershell.exepowershell.exepowershell.exe

description	pid	process
Token: SeDebugPrivilege	1744	XClient.exe
Token: SeDebugPrivilege	2924	powershell.exe
Token: SeDebugPrivilege	2548	powershell.exe
Token: SeDebugPrivilege	2544	powershell.exe
Token: SeDebugPrivilege	1800	powershell.exe
Token: SeDebugPrivilege	1744	XClient.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

XClient.exe

pid process

1744 XClient.exe

pid	process
1744	XClient.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

XClient.exe

description	pid	process	target process
PID 1744 wrote to memory of 2924	1744	XClient.exe	powershell.exe
PID 1744 wrote to memory of 2924	1744	XClient.exe	powershell.exe
PID 1744 wrote to memory of 2924	1744	XClient.exe	powershell.exe
PID 1744 wrote to memory of 2548	1744	XClient.exe	powershell.exe
PID 1744 wrote to memory of 2548	1744	XClient.exe	powershell.exe
PID 1744 wrote to memory of 2548	1744	XClient.exe	powershell.exe
PID 1744 wrote to memory of 2544	1744	XClient.exe	powershell.exe
PID 1744 wrote to memory of 2544	1744	XClient.exe	powershell.exe
PID 1744 wrote to memory of 2544	1744	XClient.exe	powershell.exe
PID 1744 wrote to memory of 1800	1744	XClient.exe	powershell.exe
PID 1744 wrote to memory of 1800	1744	XClient.exe	powershell.exe
PID 1744 wrote to memory of 1800	1744	XClient.exe	powershell.exe

C:\Users\Admin\AppData\Local\Temp\XClient.exe
"C:\Users\Admin\AppData\Local\Temp\XClient.exe"
1⤵
- Drops startup file
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1744

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:2924

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:2548

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\ProgramData\VLC_Media.exe'
2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2544

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'VLC_Media.exe'
2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1800

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

MD5
4bab7b77648759448e83a71e180062e9

SHA1
b6cf55fc21ca541486ac754fe9ef0296f07ac6ec

SHA256
df285b5d6b8f4927120214b5fc4cd17770b0c5b5ad923e020457d4900c4e50fd

SHA512
12c8f8fd385eb94f1de50ff48c675f3488644384230edf4b5a7734e73c62c481d9f18d50df6b6d96efcafb8e23f592d8d1bbbf2daecb8d7fa2bbf1977af77522

Download Submit
\??\PIPE\srvsvc
MD5
d41d8cd98f00b204e9800998ecf8427e

SHA1
da39a3ee5e6b4b0d3255bfef95601890afd80709

SHA256
e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

SHA512
cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

Download Submit
memory/1744-0-0x000007FEF5553000-0x000007FEF5554000-memory.dmp

Filesize
4KB

Download
memory/1744-1-0x0000000000AA0000-0x0000000000AE2000-memory.dmp

Filesize
264KB

Download
memory/1744-2-0x000007FEF5550000-0x000007FEF5F3C000-memory.dmp

Filesize
9.9MB

Download
memory/1744-31-0x000007FEF5553000-0x000007FEF5554000-memory.dmp

Filesize
4KB

Download
memory/1744-32-0x000007FEF5550000-0x000007FEF5F3C000-memory.dmp

Filesize
9.9MB

Download
memory/2548-14-0x000000001B5C0000-0x000000001B8A2000-memory.dmp

Filesize
2.9MB

Download
memory/2548-15-0x0000000001E20000-0x0000000001E28000-memory.dmp

Filesize
32KB

Download
memory/2924-7-0x000000001B680000-0x000000001B962000-memory.dmp

Filesize
2.9MB

Download
memory/2924-8-0x0000000002890000-0x0000000002898000-memory.dmp

Filesize
32KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads