xworm | 188d525daed5c014ea5ae62a1fd1841d783693e41712ea58b9906cda2b60dbed

General

Target

188d525daed5c014ea5ae62a1fd1841d783693e41712ea58b9906cda2b60dbed.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 5 IoCs

resource	yara_rule
behavioral1/memory/2280-1-0x0000000000260000-0x000000000027A000-memory.dmp	family_xworm
behavioral1/files/0x000b00000001227e-35.dat	family_xworm
behavioral1/memory/236-37-0x00000000012B0000-0x00000000012CA000-memory.dmp	family_xworm
behavioral1/memory/2492-40-0x0000000001330000-0x000000000134A000-memory.dmp	family_xworm
behavioral1/memory/928-42-0x0000000000230000-0x000000000024A000-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
2776	powershell.exe
2912	powershell.exe
2144	powershell.exe
2732	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	188d525daed5c014ea5ae62a1fd1841d783693e41712ea58b9906cda2b60dbed.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\SolaraX.lnk	188d525daed5c014ea5ae62a1fd1841d783693e41712ea58b9906cda2b60dbed.exe

Executes dropped EXE 3 IoCs

pid	Process
236	SolaraX.exe
2492	SolaraX.exe
928	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-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Windows\CurrentVersion\Run\SolaraX = "C:\\Users\\Admin\\AppData\\Roaming\\SolaraX.exe"	188d525daed5c014ea5ae62a1fd1841d783693e41712ea58b9906cda2b60dbed.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
2428	schtasks.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
2776	powershell.exe
2912	powershell.exe
2144	powershell.exe
2732	powershell.exe
2280	188d525daed5c014ea5ae62a1fd1841d783693e41712ea58b9906cda2b60dbed.exe

Suspicious use of AdjustPrivilegeToken 9 IoCs

description	pid	Process
Token: SeDebugPrivilege	2280	188d525daed5c014ea5ae62a1fd1841d783693e41712ea58b9906cda2b60dbed.exe
Token: SeDebugPrivilege	2776	powershell.exe
Token: SeDebugPrivilege	2912	powershell.exe
Token: SeDebugPrivilege	2144	powershell.exe
Token: SeDebugPrivilege	2732	powershell.exe
Token: SeDebugPrivilege	2280	188d525daed5c014ea5ae62a1fd1841d783693e41712ea58b9906cda2b60dbed.exe
Token: SeDebugPrivilege	236	SolaraX.exe
Token: SeDebugPrivilege	2492	SolaraX.exe
Token: SeDebugPrivilege	928	SolaraX.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2280	188d525daed5c014ea5ae62a1fd1841d783693e41712ea58b9906cda2b60dbed.exe

Suspicious use of WriteProcessMemory 24 IoCs

description	pid	Process	procid_target
PID 2280 wrote to memory of 2776	2280	188d525daed5c014ea5ae62a1fd1841d783693e41712ea58b9906cda2b60dbed.exe	29
PID 2280 wrote to memory of 2776	2280	188d525daed5c014ea5ae62a1fd1841d783693e41712ea58b9906cda2b60dbed.exe	29
PID 2280 wrote to memory of 2776	2280	188d525daed5c014ea5ae62a1fd1841d783693e41712ea58b9906cda2b60dbed.exe	29
PID 2280 wrote to memory of 2912	2280	188d525daed5c014ea5ae62a1fd1841d783693e41712ea58b9906cda2b60dbed.exe	31
PID 2280 wrote to memory of 2912	2280	188d525daed5c014ea5ae62a1fd1841d783693e41712ea58b9906cda2b60dbed.exe	31
PID 2280 wrote to memory of 2912	2280	188d525daed5c014ea5ae62a1fd1841d783693e41712ea58b9906cda2b60dbed.exe	31
PID 2280 wrote to memory of 2144	2280	188d525daed5c014ea5ae62a1fd1841d783693e41712ea58b9906cda2b60dbed.exe	33
PID 2280 wrote to memory of 2144	2280	188d525daed5c014ea5ae62a1fd1841d783693e41712ea58b9906cda2b60dbed.exe	33
PID 2280 wrote to memory of 2144	2280	188d525daed5c014ea5ae62a1fd1841d783693e41712ea58b9906cda2b60dbed.exe	33
PID 2280 wrote to memory of 2732	2280	188d525daed5c014ea5ae62a1fd1841d783693e41712ea58b9906cda2b60dbed.exe	35
PID 2280 wrote to memory of 2732	2280	188d525daed5c014ea5ae62a1fd1841d783693e41712ea58b9906cda2b60dbed.exe	35
PID 2280 wrote to memory of 2732	2280	188d525daed5c014ea5ae62a1fd1841d783693e41712ea58b9906cda2b60dbed.exe	35
PID 2280 wrote to memory of 2428	2280	188d525daed5c014ea5ae62a1fd1841d783693e41712ea58b9906cda2b60dbed.exe	37
PID 2280 wrote to memory of 2428	2280	188d525daed5c014ea5ae62a1fd1841d783693e41712ea58b9906cda2b60dbed.exe	37
PID 2280 wrote to memory of 2428	2280	188d525daed5c014ea5ae62a1fd1841d783693e41712ea58b9906cda2b60dbed.exe	37
PID 2676 wrote to memory of 236	2676	taskeng.exe	41
PID 2676 wrote to memory of 236	2676	taskeng.exe	41
PID 2676 wrote to memory of 236	2676	taskeng.exe	41
PID 2676 wrote to memory of 2492	2676	taskeng.exe	42
PID 2676 wrote to memory of 2492	2676	taskeng.exe	42
PID 2676 wrote to memory of 2492	2676	taskeng.exe	42
PID 2676 wrote to memory of 928	2676	taskeng.exe	43
PID 2676 wrote to memory of 928	2676	taskeng.exe	43
PID 2676 wrote to memory of 928	2676	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\188d525daed5c014ea5ae62a1fd1841d783693e41712ea58b9906cda2b60dbed.exe
"C:\Users\Admin\AppData\Local\Temp\188d525daed5c014ea5ae62a1fd1841d783693e41712ea58b9906cda2b60dbed.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:2280
- 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\188d525daed5c014ea5ae62a1fd1841d783693e41712ea58b9906cda2b60dbed.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2776
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess '188d525daed5c014ea5ae62a1fd1841d783693e41712ea58b9906cda2b60dbed.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2912
- 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:2144
- 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:2732
- 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:2428

C:\Windows\system32\taskeng.exe
taskeng.exe {F60377C6-5D20-432B-A963-9102C490EB66} S-1-5-21-3692679935-4019334568-335155002-1000:BCXRJFKE\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:2676
- C:\Users\Admin\AppData\Roaming\SolaraX.exe
  C:\Users\Admin\AppData\Roaming\SolaraX.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:236
- C:\Users\Admin\AppData\Roaming\SolaraX.exe
  C:\Users\Admin\AppData\Roaming\SolaraX.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:2492
- C:\Users\Admin\AppData\Roaming\SolaraX.exe
  C:\Users\Admin\AppData\Roaming\SolaraX.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:928

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
a5ddcf1402d9ec4813fb0bbe9e9ffe9e

SHA1
0359f9fdeace270a74255d550a97cedb65d47ac4

SHA256
fed7da580254b31699cc30e47558bc5608e6044c40bb016a43c97f29a6aba95f

SHA512
2101b838ca16f6dae87a6e7cf0ce4fca314fa62ede3c614a49a3713ecbf03cb99e7ed585f77d8c1944af89e926135e19d25d869ca8ef29a616ee001191320238

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

Filesize
82KB

MD5
b201ce5dcb58284da7a5ef6294418e56

SHA1
27573051f80debfd74e1a72d27cfd29f58c76d7e

SHA256
188d525daed5c014ea5ae62a1fd1841d783693e41712ea58b9906cda2b60dbed

SHA512
f282f9efa40ce5e753faf803079af9aae478711e6e2f3dcf09c744ae3e670c6ef0cb18b62c8e57ba825faef8c396dd481768ef0680681d4b1b80ad1c3433f11c

Download Submit
memory/236-37-0x00000000012B0000-0x00000000012CA000-memory.dmp

Filesize
104KB

Download
memory/928-42-0x0000000000230000-0x000000000024A000-memory.dmp

Filesize
104KB

Download
memory/2280-1-0x0000000000260000-0x000000000027A000-memory.dmp

Filesize
104KB

Download
memory/2280-0-0x000007FEF65A3000-0x000007FEF65A4000-memory.dmp

Filesize
4KB

Download
memory/2280-27-0x000007FEF65A3000-0x000007FEF65A4000-memory.dmp

Filesize
4KB

Download
memory/2280-32-0x000000001AF40000-0x000000001AFC0000-memory.dmp

Filesize
512KB

Download
memory/2280-33-0x000000001AF40000-0x000000001AFC0000-memory.dmp

Filesize
512KB

Download
memory/2492-40-0x0000000001330000-0x000000000134A000-memory.dmp

Filesize
104KB

Download
memory/2776-7-0x000000001B420000-0x000000001B702000-memory.dmp

Filesize
2.9MB

Download
memory/2776-6-0x0000000002730000-0x00000000027B0000-memory.dmp

Filesize
512KB

Download
memory/2776-8-0x0000000001F90000-0x0000000001F98000-memory.dmp

Filesize
32KB

Download
memory/2912-14-0x000000001B2C0000-0x000000001B5A2000-memory.dmp

Filesize
2.9MB

Download
memory/2912-15-0x00000000026E0000-0x00000000026E8000-memory.dmp

Filesize
32KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads