xworm | 150fb7fed020ccb73bcc45318b1b3ad5a53b61812187153c0a64e51eec05c432

General

Target

rerdsa.exe
Size

72KB
MD5

5b3a52ad2fc314e411d5719a7015b07b
SHA1

ca6c701a1bc285f7b9afdec944d9dbf15ca8dd8f
SHA256

150fb7fed020ccb73bcc45318b1b3ad5a53b61812187153c0a64e51eec05c432
SHA512

26c7830b7beef06d2fd7e5d8992445b000f84c953d7939c5180884e2c24caa1c19d84740a772ec7df894f7ec88d878d5a4a3a26db42967f5d67a0b001e2438c6
SSDEEP

1536:gsGRbC/RYhIpSiyyLm9Jwy2t7iHb5x9p3oHR6d45arOrdxnwMGp58:950iDLyJitWHb5Vm5SOrdxnwnp58

Score

10^/10

xworm execution rat trojan

Malware Config

Extracted

Family

xworm

C2

127.0.0.1:23386

cameras-happen.gl.at.ply.gg:23386

Attributes

Install_directory
%AppData%
install_file
XClient.exe

Signatures

Detect Xworm Payload 1 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2900-1-0x00000000011F0000-0x0000000001208000-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

2520 powershell.exe
1288 powershell.exe
2836 powershell.exe
2496 powershell.exe

pid	process
2520	powershell.exe
1288	powershell.exe
2836	powershell.exe
2496	powershell.exe

Drops startup file 2 IoCs

Processes:

rerdsa.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\XClient.lnk	rerdsa.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\XClient.lnk	rerdsa.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
Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

powershell.exepowershell.exepowershell.exepowershell.exe

pid process

2496 powershell.exe
2520 powershell.exe
1288 powershell.exe
2836 powershell.exe

flow	ioc
4	ip-api.com

pid	process
2496	powershell.exe
2520	powershell.exe
1288	powershell.exe
2836	powershell.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

Processes:

rerdsa.exepowershell.exepowershell.exepowershell.exepowershell.exe

description	pid	process
Token: SeDebugPrivilege	2900	rerdsa.exe
Token: SeDebugPrivilege	2496	powershell.exe
Token: SeDebugPrivilege	2520	powershell.exe
Token: SeDebugPrivilege	1288	powershell.exe
Token: SeDebugPrivilege	2836	powershell.exe
Token: SeDebugPrivilege	2900	rerdsa.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

rerdsa.exe

description	pid	process	target process
PID 2900 wrote to memory of 2496	2900	rerdsa.exe	powershell.exe
PID 2900 wrote to memory of 2496	2900	rerdsa.exe	powershell.exe
PID 2900 wrote to memory of 2496	2900	rerdsa.exe	powershell.exe
PID 2900 wrote to memory of 2520	2900	rerdsa.exe	powershell.exe
PID 2900 wrote to memory of 2520	2900	rerdsa.exe	powershell.exe
PID 2900 wrote to memory of 2520	2900	rerdsa.exe	powershell.exe
PID 2900 wrote to memory of 1288	2900	rerdsa.exe	powershell.exe
PID 2900 wrote to memory of 1288	2900	rerdsa.exe	powershell.exe
PID 2900 wrote to memory of 1288	2900	rerdsa.exe	powershell.exe
PID 2900 wrote to memory of 2836	2900	rerdsa.exe	powershell.exe
PID 2900 wrote to memory of 2836	2900	rerdsa.exe	powershell.exe
PID 2900 wrote to memory of 2836	2900	rerdsa.exe	powershell.exe

C:\Users\Admin\AppData\Local\Temp\rerdsa.exe
"C:\Users\Admin\AppData\Local\Temp\rerdsa.exe"
1⤵
- Drops startup file
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2900

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\rerdsa.exe'
2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2496

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'rerdsa.exe'
2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2520

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:1288

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:2836

Network

MITRE ATT&CK Matrix ATT&CK v13

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

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

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Downloads

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\R0DHO01UYGOWOEMESWBQ.temp
Filesize
7KB

MD5
9b327b3268d63d905c3a0fffad4abd70

SHA1
8115da31c5605088e0d11ea6c6e10326197c305d

SHA256
49d92535b04f4e417a655c383e8b14397e51245a40ce21edf93e5d33d7e1834e

SHA512
f4717b3c1a1adafc683cf2ab1359ac098b820d9d1f6e45dfe53de52b99192c946732f304f18d94b5421d232aebb79136e84c70ec3c99d4ee8ee64bf40cb70c46

Download Submit
\??\PIPE\srvsvc
MD5
d41d8cd98f00b204e9800998ecf8427e

SHA1
da39a3ee5e6b4b0d3255bfef95601890afd80709

SHA256
e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

SHA512
cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

Download Submit
memory/2496-8-0x0000000001D50000-0x0000000001DD0000-memory.dmp

Filesize
512KB

Download
memory/2496-9-0x000000001B780000-0x000000001BA62000-memory.dmp

Filesize
2.9MB

Download
memory/2496-10-0x0000000001E90000-0x0000000001E98000-memory.dmp

Filesize
32KB

Download
memory/2520-16-0x000000001B700000-0x000000001B9E2000-memory.dmp

Filesize
2.9MB

Download
memory/2520-17-0x0000000001D90000-0x0000000001D98000-memory.dmp

Filesize
32KB

Download
memory/2900-0-0x000007FEF5353000-0x000007FEF5354000-memory.dmp

Filesize
4KB

Download
memory/2900-1-0x00000000011F0000-0x0000000001208000-memory.dmp

Filesize
96KB

Download
memory/2900-2-0x000007FEF5350000-0x000007FEF5D3C000-memory.dmp

Filesize
9.9MB

Download
memory/2900-3-0x000007FEF5353000-0x000007FEF5354000-memory.dmp

Filesize
4KB

Download
memory/2900-33-0x000007FEF5350000-0x000007FEF5D3C000-memory.dmp

Filesize
9.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads