xworm | 8f9e0d533fa5774f0653db9f900b4ef4356d8b3f1f8a90ae5f57bab24f14d86e

General

Target

UniversalInstaller.exe
Size

275KB
MD5

bac631aa713e238ca4cc65b620736715
SHA1

d0f7bcda4d2fdcf3e1f41859e5251d021603f909
SHA256

8f9e0d533fa5774f0653db9f900b4ef4356d8b3f1f8a90ae5f57bab24f14d86e
SHA512

731cc3e56c4b48b278c512712068c815fcd989ed5250c2443c3e38d36eac8e40d969d9b84dfbd1e28fe80c555255006440ec24aa904c63e2d31a086a8bfb11d3
SSDEEP

3072:RdOB4dT+b7chk6qvFORJgmXbcK0L4AFD/l8xZ4uIxPLKKx03fJqWkG1SpPlpQJQU:RdOCob7oOEbGCIEfWcSlaUM/g

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

C2

23.ip.gl.ply.gg:57577

Attributes

Install_directory
%AppData%
install_file
svchost.exe

Signatures

Detect Xworm Payload 1 IoCs

resource	yara_rule
behavioral1/memory/604-1-0x0000000001330000-0x000000000137A000-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
2828	powershell.exe
2052	powershell.exe
2704	powershell.exe
2560	powershell.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\svchost.lnk	UniversalInstaller.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\svchost.lnk	UniversalInstaller.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-1-5-21-3063565911-2056067323-3330884624-1000\Software\Microsoft\Windows\CurrentVersion\Run\svchost = "C:\\Users\\Admin\\AppData\\Roaming\\svchost.exe"	UniversalInstaller.exe

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
2052	powershell.exe
2704	powershell.exe
2560	powershell.exe
2828	powershell.exe
604	UniversalInstaller.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	604	UniversalInstaller.exe
Token: SeDebugPrivilege	2052	powershell.exe
Token: SeDebugPrivilege	2704	powershell.exe
Token: SeDebugPrivilege	2560	powershell.exe
Token: SeDebugPrivilege	2828	powershell.exe
Token: SeDebugPrivilege	604	UniversalInstaller.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
604	UniversalInstaller.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 604 wrote to memory of 2052	604	UniversalInstaller.exe	31
PID 604 wrote to memory of 2052	604	UniversalInstaller.exe	31
PID 604 wrote to memory of 2052	604	UniversalInstaller.exe	31
PID 604 wrote to memory of 2704	604	UniversalInstaller.exe	33
PID 604 wrote to memory of 2704	604	UniversalInstaller.exe	33
PID 604 wrote to memory of 2704	604	UniversalInstaller.exe	33
PID 604 wrote to memory of 2560	604	UniversalInstaller.exe	35
PID 604 wrote to memory of 2560	604	UniversalInstaller.exe	35
PID 604 wrote to memory of 2560	604	UniversalInstaller.exe	35
PID 604 wrote to memory of 2828	604	UniversalInstaller.exe	37
PID 604 wrote to memory of 2828	604	UniversalInstaller.exe	37
PID 604 wrote to memory of 2828	604	UniversalInstaller.exe	37

C:\Users\Admin\AppData\Local\Temp\UniversalInstaller.exe
"C:\Users\Admin\AppData\Local\Temp\UniversalInstaller.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:604
- 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\UniversalInstaller.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2052
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'UniversalInstaller.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  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\Roaming\svchost.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2560
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'svchost.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2828

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

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
9bacb0d6255c429002d6c005e5a10768

SHA1
6d10670d3fe9523aceb3db25b1be8b46b29cd993

SHA256
34f60f40e64ab7f9eb7c7d88097500525bcbd3782009d3cabf5cb4f42d82a913

SHA512
4627c088f4abd5f043bd157f5aa5b4b2dbb58a4db2b8ed182988f1a0e1477db459945e9bf5d00e7317dfb89f58d3ea70e240c387dbca5214091a558d1c5fe128

Download Submit
memory/604-0-0x000007FEF55F3000-0x000007FEF55F4000-memory.dmp

Filesize
4KB

Download
memory/604-1-0x0000000001330000-0x000000000137A000-memory.dmp

Filesize
296KB

Download
memory/604-32-0x000000001B180000-0x000000001B200000-memory.dmp

Filesize
512KB

Download
memory/604-33-0x000007FEF55F3000-0x000007FEF55F4000-memory.dmp

Filesize
4KB

Download
memory/604-34-0x000000001B180000-0x000000001B200000-memory.dmp

Filesize
512KB

Download
memory/2052-6-0x0000000002E20000-0x0000000002EA0000-memory.dmp

Filesize
512KB

Download
memory/2052-7-0x000000001B600000-0x000000001B8E2000-memory.dmp

Filesize
2.9MB

Download
memory/2052-8-0x0000000001DA0000-0x0000000001DA8000-memory.dmp

Filesize
32KB

Download
memory/2704-14-0x000000001B540000-0x000000001B822000-memory.dmp

Filesize
2.9MB

Download
memory/2704-15-0x00000000027E0000-0x00000000027E8000-memory.dmp

Filesize
32KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads