xworm | fb95f5794977ee889f82cb0720e65dfd4af77576b1a321499cd1b94322b1902f

General

Target

NatroMacro_1.21.1.exe
Size

158KB
MD5

b58d2c1a2f6a201a728290eec00c8a3b
SHA1

5fb16485ee1e9c57b1d5025d58772cc4b8816c78
SHA256

fb95f5794977ee889f82cb0720e65dfd4af77576b1a321499cd1b94322b1902f
SHA512

fbf6d2e9b3b1b8c1ead35540d35f5a434c9ae87b4edf60a8ea421beabb3cce055a0e03141cdd5cf777a5bd7b7b75c9d11dcec4d6061acb9f862ebe40a1df5c94
SSDEEP

3072:CIhse1Jb5cKsEzL+rsOGca/4Bz65/M6If+3Js+3JFkKeTn7:HhdbxzLrQxBt25

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

C2

engineering-thoroughly.gl.at.ply.gg:32901

20.ip.gl.ply.gg:32901

Attributes

Install_directory
%AppData%
install_file
svchost.exe

Signatures

Detect Xworm Payload 1 IoCs

resource	yara_rule
behavioral1/memory/2840-1-0x0000000000FD0000-0x0000000000FFE000-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

pid	Process
2752	powershell.exe
2412	powershell.exe
1136	powershell.exe
2616	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	NatroMacro_1.21.1.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\svchost.lnk	NatroMacro_1.21.1.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-1-5-21-1506706701-1246725540-2219210854-1000\Software\Microsoft\Windows\CurrentVersion\Run\svchost = "C:\\Users\\Admin\\AppData\\Roaming\\svchost.exe"	NatroMacro_1.21.1.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

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2752	powershell.exe
2412	powershell.exe
1136	powershell.exe
2616	powershell.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	2840	NatroMacro_1.21.1.exe
Token: SeDebugPrivilege	2752	powershell.exe
Token: SeDebugPrivilege	2412	powershell.exe
Token: SeDebugPrivilege	1136	powershell.exe
Token: SeDebugPrivilege	2616	powershell.exe
Token: SeDebugPrivilege	2840	NatroMacro_1.21.1.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2840 wrote to memory of 2752	2840	NatroMacro_1.21.1.exe	30
PID 2840 wrote to memory of 2752	2840	NatroMacro_1.21.1.exe	30
PID 2840 wrote to memory of 2752	2840	NatroMacro_1.21.1.exe	30
PID 2840 wrote to memory of 2412	2840	NatroMacro_1.21.1.exe	32
PID 2840 wrote to memory of 2412	2840	NatroMacro_1.21.1.exe	32
PID 2840 wrote to memory of 2412	2840	NatroMacro_1.21.1.exe	32
PID 2840 wrote to memory of 1136	2840	NatroMacro_1.21.1.exe	34
PID 2840 wrote to memory of 1136	2840	NatroMacro_1.21.1.exe	34
PID 2840 wrote to memory of 1136	2840	NatroMacro_1.21.1.exe	34
PID 2840 wrote to memory of 2616	2840	NatroMacro_1.21.1.exe	36
PID 2840 wrote to memory of 2616	2840	NatroMacro_1.21.1.exe	36
PID 2840 wrote to memory of 2616	2840	NatroMacro_1.21.1.exe	36

C:\Users\Admin\AppData\Local\Temp\NatroMacro_1.21.1.exe
"C:\Users\Admin\AppData\Local\Temp\NatroMacro_1.21.1.exe"
1⤵
- Drops startup file
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2840
- 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\NatroMacro_1.21.1.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2752
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'NatroMacro_1.21.1.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2412
- 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:1136
- 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:2616

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
0c4db3246bfa7649ae43ce2740bbe3f4

SHA1
d9b3244a741ef065621cc7c746a7bc0166a41b33

SHA256
a56a74f59f0a96f30cfb09263c120670055dd8db97ae8801d97a7be75f279668

SHA512
6f71fd8c58fe2c198016d48495287b388f88d4b576c5e048b8041f4ee9dfe718a156ed19f64428268fcf72c2943d9a8a6d7460b5c62582ef1faf4a5c528345de

Download Submit
memory/2412-15-0x000000001B7B0000-0x000000001BA92000-memory.dmp

Filesize
2.9MB

Download
memory/2412-16-0x0000000001E50000-0x0000000001E58000-memory.dmp

Filesize
32KB

Download
memory/2752-7-0x0000000002B10000-0x0000000002B90000-memory.dmp

Filesize
512KB

Download
memory/2752-8-0x000000001B700000-0x000000001B9E2000-memory.dmp

Filesize
2.9MB

Download
memory/2752-9-0x0000000002350000-0x0000000002358000-memory.dmp

Filesize
32KB

Download
memory/2840-0-0x000007FEF63B3000-0x000007FEF63B4000-memory.dmp

Filesize
4KB

Download
memory/2840-1-0x0000000000FD0000-0x0000000000FFE000-memory.dmp

Filesize
184KB

Download
memory/2840-2-0x000007FEF63B0000-0x000007FEF6D9C000-memory.dmp

Filesize
9.9MB

Download
memory/2840-27-0x000007FEF63B3000-0x000007FEF63B4000-memory.dmp

Filesize
4KB

Download
memory/2840-33-0x000007FEF63B0000-0x000007FEF6D9C000-memory.dmp

Filesize
9.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads