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 4 IoCs

resource	yara_rule
behavioral1/memory/2412-1-0x00000000001E0000-0x00000000001FA000-memory.dmp	family_xworm
behavioral1/files/0x000b00000001755b-35.dat	family_xworm
behavioral1/memory/1080-37-0x0000000000280000-0x000000000029A000-memory.dmp	family_xworm
behavioral1/memory/2324-40-0x0000000000090000-0x00000000000AA000-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
2876	powershell.exe
2396	powershell.exe
2508	powershell.exe
2192	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
1080	SolaraX.exe
2324	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-1-5-21-1163522206-1469769407-485553996-1000\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
2696	schtasks.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
2396	powershell.exe
2508	powershell.exe
2192	powershell.exe
2876	powershell.exe
2412	X.exe

Suspicious use of AdjustPrivilegeToken 8 IoCs

description	pid	Process
Token: SeDebugPrivilege	2412	X.exe
Token: SeDebugPrivilege	2396	powershell.exe
Token: SeDebugPrivilege	2508	powershell.exe
Token: SeDebugPrivilege	2192	powershell.exe
Token: SeDebugPrivilege	2876	powershell.exe
Token: SeDebugPrivilege	2412	X.exe
Token: SeDebugPrivilege	1080	SolaraX.exe
Token: SeDebugPrivilege	2324	SolaraX.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2412	X.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 2412 wrote to memory of 2396	2412	X.exe	31
PID 2412 wrote to memory of 2396	2412	X.exe	31
PID 2412 wrote to memory of 2396	2412	X.exe	31
PID 2412 wrote to memory of 2508	2412	X.exe	33
PID 2412 wrote to memory of 2508	2412	X.exe	33
PID 2412 wrote to memory of 2508	2412	X.exe	33
PID 2412 wrote to memory of 2192	2412	X.exe	35
PID 2412 wrote to memory of 2192	2412	X.exe	35
PID 2412 wrote to memory of 2192	2412	X.exe	35
PID 2412 wrote to memory of 2876	2412	X.exe	37
PID 2412 wrote to memory of 2876	2412	X.exe	37
PID 2412 wrote to memory of 2876	2412	X.exe	37
PID 2412 wrote to memory of 2696	2412	X.exe	39
PID 2412 wrote to memory of 2696	2412	X.exe	39
PID 2412 wrote to memory of 2696	2412	X.exe	39
PID 2008 wrote to memory of 1080	2008	taskeng.exe	43
PID 2008 wrote to memory of 1080	2008	taskeng.exe	43
PID 2008 wrote to memory of 1080	2008	taskeng.exe	43
PID 2008 wrote to memory of 2324	2008	taskeng.exe	44
PID 2008 wrote to memory of 2324	2008	taskeng.exe	44
PID 2008 wrote to memory of 2324	2008	taskeng.exe	44

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: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\Local\Temp\X.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2396
- 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:2508
- 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:2192
- 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:2876
- 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:2696

C:\Windows\system32\taskeng.exe
taskeng.exe {E270EF9C-279F-49F4-B5B7-D9BFA72384A3} S-1-5-21-1163522206-1469769407-485553996-1000:PJCSDMRP\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:2008
- C:\Users\Admin\AppData\Roaming\SolaraX.exe
  C:\Users\Admin\AppData\Roaming\SolaraX.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:1080
- C:\Users\Admin\AppData\Roaming\SolaraX.exe
  C:\Users\Admin\AppData\Roaming\SolaraX.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:2324

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
53c368ff3666cd247e54b8495ac473e0

SHA1
3276e2e7972af048211173f88b12bbadec5be7c9

SHA256
66479296d0635d96bd6872690e96e95a833de5c079469b3b7ee3ffc16a2e8a1c

SHA512
8ff491f7b5c3bc4cff01d1c8949958073b2f17c9d2b7fccdcf8fb068abecf0e54798cba3acf92f783e39ba74138bddf2be8ae4849aef95c13d6d0f52d9d6e4e0

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

Filesize
82KB

MD5
b201ce5dcb58284da7a5ef6294418e56

SHA1
27573051f80debfd74e1a72d27cfd29f58c76d7e

SHA256
188d525daed5c014ea5ae62a1fd1841d783693e41712ea58b9906cda2b60dbed

SHA512
f282f9efa40ce5e753faf803079af9aae478711e6e2f3dcf09c744ae3e670c6ef0cb18b62c8e57ba825faef8c396dd481768ef0680681d4b1b80ad1c3433f11c

Download Submit
memory/1080-37-0x0000000000280000-0x000000000029A000-memory.dmp

Filesize
104KB

Download
memory/2324-40-0x0000000000090000-0x00000000000AA000-memory.dmp

Filesize
104KB

Download
memory/2396-6-0x0000000002940000-0x00000000029C0000-memory.dmp

Filesize
512KB

Download
memory/2396-7-0x000000001B6C0000-0x000000001B9A2000-memory.dmp

Filesize
2.9MB

Download
memory/2396-8-0x0000000001D90000-0x0000000001D98000-memory.dmp

Filesize
32KB

Download
memory/2412-31-0x000000001AB60000-0x000000001ABE0000-memory.dmp

Filesize
512KB

Download
memory/2412-0-0x000007FEF5D23000-0x000007FEF5D24000-memory.dmp

Filesize
4KB

Download
memory/2412-32-0x000007FEF5D23000-0x000007FEF5D24000-memory.dmp

Filesize
4KB

Download
memory/2412-33-0x000000001AB60000-0x000000001ABE0000-memory.dmp

Filesize
512KB

Download
memory/2412-1-0x00000000001E0000-0x00000000001FA000-memory.dmp

Filesize
104KB

Download
memory/2508-15-0x0000000001DA0000-0x0000000001DA8000-memory.dmp

Filesize
32KB

Download
memory/2508-14-0x000000001B820000-0x000000001BB02000-memory.dmp

Filesize
2.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads