xworm | 188d525daed5c014ea5ae62a1fd1841d783693e41712ea58b9906cda2b60dbed

General

Target

X.exe
Size

82KB
MD5

b201ce5dcb58284da7a5ef6294418e56
SHA1

27573051f80debfd74e1a72d27cfd29f58c76d7e
SHA256

188d525daed5c014ea5ae62a1fd1841d783693e41712ea58b9906cda2b60dbed
SHA512

f282f9efa40ce5e753faf803079af9aae478711e6e2f3dcf09c744ae3e670c6ef0cb18b62c8e57ba825faef8c396dd481768ef0680681d4b1b80ad1c3433f11c
SSDEEP

1536:D2wgD0/WhgBpRCn3wtSD+bQ6QqTMj34Al6G4tIzOasNnP6UO:ywkeWQCn1+bQdjrytuOa6Sz

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

C2

127.0.0.1:36623

fax-scenarios.gl.at.ply.gg:36623

Attributes

Install_directory
%AppData%
install_file
SolaraX.exe

Signatures

Detect Xworm Payload 3 IoCs

resource	yara_rule
behavioral1/memory/2876-1-0x00000000010E0000-0x00000000010FA000-memory.dmp	family_xworm
behavioral1/files/0x000d000000012263-35.dat	family_xworm
behavioral1/memory/1076-37-0x00000000012A0000-0x00000000012BA000-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
2108	powershell.exe
2236	powershell.exe
2956	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\SolaraX.lnk	X.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\SolaraX.lnk	X.exe

Executes dropped EXE 2 IoCs

pid	Process
1076	SolaraX.exe
860	SolaraX.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-1-5-21-2039016743-699959520-214465309-1000\Software\Microsoft\Windows\CurrentVersion\Run\SolaraX = "C:\\Users\\Admin\\AppData\\Roaming\\SolaraX.exe"	X.exe

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
2064	schtasks.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
2108	powershell.exe
2236	powershell.exe
2956	powershell.exe
2560	powershell.exe
2876	X.exe

Suspicious use of AdjustPrivilegeToken 8 IoCs

description	pid	Process
Token: SeDebugPrivilege	2876	X.exe
Token: SeDebugPrivilege	2108	powershell.exe
Token: SeDebugPrivilege	2236	powershell.exe
Token: SeDebugPrivilege	2956	powershell.exe
Token: SeDebugPrivilege	2560	powershell.exe
Token: SeDebugPrivilege	2876	X.exe
Token: SeDebugPrivilege	1076	SolaraX.exe
Token: SeDebugPrivilege	860	SolaraX.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2876	X.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 2876 wrote to memory of 2108	2876	X.exe	30
PID 2876 wrote to memory of 2108	2876	X.exe	30
PID 2876 wrote to memory of 2108	2876	X.exe	30
PID 2876 wrote to memory of 2236	2876	X.exe	32
PID 2876 wrote to memory of 2236	2876	X.exe	32
PID 2876 wrote to memory of 2236	2876	X.exe	32
PID 2876 wrote to memory of 2956	2876	X.exe	34
PID 2876 wrote to memory of 2956	2876	X.exe	34
PID 2876 wrote to memory of 2956	2876	X.exe	34
PID 2876 wrote to memory of 2560	2876	X.exe	36
PID 2876 wrote to memory of 2560	2876	X.exe	36
PID 2876 wrote to memory of 2560	2876	X.exe	36
PID 2876 wrote to memory of 2064	2876	X.exe	38
PID 2876 wrote to memory of 2064	2876	X.exe	38
PID 2876 wrote to memory of 2064	2876	X.exe	38
PID 1256 wrote to memory of 1076	1256	taskeng.exe	42
PID 1256 wrote to memory of 1076	1256	taskeng.exe	42
PID 1256 wrote to memory of 1076	1256	taskeng.exe	42
PID 1256 wrote to memory of 860	1256	taskeng.exe	43
PID 1256 wrote to memory of 860	1256	taskeng.exe	43
PID 1256 wrote to memory of 860	1256	taskeng.exe	43

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\X.exe
"C:\Users\Admin\AppData\Local\Temp\X.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:2876
- 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\X.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2108
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'X.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2236
- 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\SolaraX.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2956
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'SolaraX.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2560
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "SolaraX" /tr "C:\Users\Admin\AppData\Roaming\SolaraX.exe"
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:2064

C:\Windows\system32\taskeng.exe
taskeng.exe {5D1268A9-6976-469F-9782-D99216856C97} S-1-5-21-2039016743-699959520-214465309-1000:PIDEURYY\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:1256
- C:\Users\Admin\AppData\Roaming\SolaraX.exe
  C:\Users\Admin\AppData\Roaming\SolaraX.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:1076
- C:\Users\Admin\AppData\Roaming\SolaraX.exe
  C:\Users\Admin\AppData\Roaming\SolaraX.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:860

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
1f05bb46f251943f4ff03b7c6fab8489

SHA1
a180c870191c82be832ed02c88bfc4122e0a5b5d

SHA256
715c29c989d3e5d67dacfa3e94b04f19cdce0d7f8518127426439c94596cb7b7

SHA512
074e785756cadbf3bd47adebee7469d96e6ce094a5bd03aaedb69fcab47984fbb10a8db9db0c0c27ef6765b66ac678a3e5f7d2157e89918d33f2455ca3f0926f

Download Submit
C:\Users\Admin\AppData\Roaming\SolaraX.exe

Filesize
82KB

MD5
b201ce5dcb58284da7a5ef6294418e56

SHA1
27573051f80debfd74e1a72d27cfd29f58c76d7e

SHA256
188d525daed5c014ea5ae62a1fd1841d783693e41712ea58b9906cda2b60dbed

SHA512
f282f9efa40ce5e753faf803079af9aae478711e6e2f3dcf09c744ae3e670c6ef0cb18b62c8e57ba825faef8c396dd481768ef0680681d4b1b80ad1c3433f11c

Download Submit
memory/1076-37-0x00000000012A0000-0x00000000012BA000-memory.dmp

Filesize
104KB

Download
memory/2108-6-0x0000000002A40000-0x0000000002AC0000-memory.dmp

Filesize
512KB

Download
memory/2108-7-0x000000001B630000-0x000000001B912000-memory.dmp

Filesize
2.9MB

Download
memory/2108-8-0x0000000001E80000-0x0000000001E88000-memory.dmp

Filesize
32KB

Download
memory/2236-14-0x000000001B630000-0x000000001B912000-memory.dmp

Filesize
2.9MB

Download
memory/2236-15-0x0000000002790000-0x0000000002798000-memory.dmp

Filesize
32KB

Download
memory/2876-31-0x0000000000BE0000-0x0000000000C60000-memory.dmp

Filesize
512KB

Download
memory/2876-32-0x000007FEF6173000-0x000007FEF6174000-memory.dmp

Filesize
4KB

Download
memory/2876-33-0x0000000000BE0000-0x0000000000C60000-memory.dmp

Filesize
512KB

Download
memory/2876-0-0x000007FEF6173000-0x000007FEF6174000-memory.dmp

Filesize
4KB

Download
memory/2876-1-0x00000000010E0000-0x00000000010FA000-memory.dmp

Filesize
104KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads