xworm | c54762e7cfed04c23c765dd85ea5e92fcdc30e34d5ff3b151595e73e50e95c03

General

Target

Perm-spofer.exe
Size

68KB
MD5

7214f6d7b7997cbfb22a9b3e6375b918
SHA1

a9c53eb43e7b0eb1cfc0bc4714bc3816274310d9
SHA256

c54762e7cfed04c23c765dd85ea5e92fcdc30e34d5ff3b151595e73e50e95c03
SHA512

dc40ea0a445f2fd5a7c0e9a90d391d72267d02bc004af57f494e52e492d02de196c06d7335971868e55b0a8b18bc640b89f2c56837194c79227f5a48c9e8a223
SSDEEP

1536:fVNtqrwwjZ2v5yNL0c+A4qvbWWEHLhASFtx6aMrTeOg54WER:fBzByNnP4qvbWWAASbaKOg54j

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

C2

simply-exotic.gl.at.ply.gg:27183

Attributes

Install_directory
%Temp%
install_file
USB.exe

Signatures

Detect Xworm Payload 1 IoCs

resource	yara_rule
behavioral1/memory/2704-1-0x00000000010C0000-0x00000000010D8000-memory.dmp	family_xworm

Xworm
Xworm is a remote access trojan written in C#.
trojan rat xworm
Xworm family
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
2684	powershell.exe
1952	powershell.exe
2812	powershell.exe
2488	powershell.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-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Windows\CurrentVersion\Run\User = "C:\\Users\\Admin\\AppData\\Local\\Temp\\User"	Perm-spofer.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
4	ip-api.com

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

System Information Discovery
T1082

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
2068	schtasks.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
2684	powershell.exe
1952	powershell.exe
2812	powershell.exe
2488	powershell.exe
2704	Perm-spofer.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	2704	Perm-spofer.exe
Token: SeDebugPrivilege	2684	powershell.exe
Token: SeDebugPrivilege	1952	powershell.exe
Token: SeDebugPrivilege	2812	powershell.exe
Token: SeDebugPrivilege	2488	powershell.exe
Token: SeDebugPrivilege	2704	Perm-spofer.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2704	Perm-spofer.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 2704 wrote to memory of 2684	2704	Perm-spofer.exe	31
PID 2704 wrote to memory of 2684	2704	Perm-spofer.exe	31
PID 2704 wrote to memory of 2684	2704	Perm-spofer.exe	31
PID 2704 wrote to memory of 1952	2704	Perm-spofer.exe	33
PID 2704 wrote to memory of 1952	2704	Perm-spofer.exe	33
PID 2704 wrote to memory of 1952	2704	Perm-spofer.exe	33
PID 2704 wrote to memory of 2812	2704	Perm-spofer.exe	35
PID 2704 wrote to memory of 2812	2704	Perm-spofer.exe	35
PID 2704 wrote to memory of 2812	2704	Perm-spofer.exe	35
PID 2704 wrote to memory of 2488	2704	Perm-spofer.exe	37
PID 2704 wrote to memory of 2488	2704	Perm-spofer.exe	37
PID 2704 wrote to memory of 2488	2704	Perm-spofer.exe	37
PID 2704 wrote to memory of 2068	2704	Perm-spofer.exe	39
PID 2704 wrote to memory of 2068	2704	Perm-spofer.exe	39
PID 2704 wrote to memory of 2068	2704	Perm-spofer.exe	39

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\Perm-spofer.exe
"C:\Users\Admin\AppData\Local\Temp\Perm-spofer.exe"
1⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2704
- 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\Perm-spofer.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2684
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'Perm-spofer.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1952
- 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\User'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2812
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'User'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2488
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "User" /tr "C:\Users\Admin\AppData\Local\Temp\User"
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:2068

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

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
fd929f1dfa3dcd4e058993843feedf66

SHA1
96299c1d7ead22dbd146461da1c75a618c8e119f

SHA256
ae6c782773e5966ecf24e3dc0b4f4611cd63a41e824b064536af3e0d560338e0

SHA512
c0fda1d49043c71711779a94bde2bec643aa3b04290aac8f911c065984d265d1e7d54ffa4d2d9ce52864a648dd59af2c7544e65318f742467a4eaabafe4c0a77

Download Submit
memory/1952-15-0x000000001B5D0000-0x000000001B8B2000-memory.dmp

Filesize
2.9MB

Download
memory/1952-16-0x0000000000310000-0x0000000000318000-memory.dmp

Filesize
32KB

Download
memory/2684-7-0x0000000002D50000-0x0000000002DD0000-memory.dmp

Filesize
512KB

Download
memory/2684-8-0x000000001B6A0000-0x000000001B982000-memory.dmp

Filesize
2.9MB

Download
memory/2684-9-0x0000000002880000-0x0000000002888000-memory.dmp

Filesize
32KB

Download
memory/2704-0-0x000007FEF5BC3000-0x000007FEF5BC4000-memory.dmp

Filesize
4KB

Download
memory/2704-1-0x00000000010C0000-0x00000000010D8000-memory.dmp

Filesize
96KB

Download
memory/2704-2-0x000007FEF5BC0000-0x000007FEF65AC000-memory.dmp

Filesize
9.9MB

Download
memory/2704-27-0x000007FEF5BC3000-0x000007FEF5BC4000-memory.dmp

Filesize
4KB

Download

Resubmissions

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads