xworm | b3448f4ae8060638bdad47bc3000afd0d5980fe66e09b6b64ae9da9134dcd9b5

Analysis

max time kernel
70s
max time network
72s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
03/12/2024, 13:07

Sharing

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Reason

Machine shutdown

Report Analysis Logs

General

Target

Solara.exe
Size

43KB
MD5

a5c594f36fccf6f04552fd2ef8cca82a
SHA1

654fd3bbe89442840010a7cbeccb2346adb0c2d1
SHA256

b3448f4ae8060638bdad47bc3000afd0d5980fe66e09b6b64ae9da9134dcd9b5
SHA512

a66c8ee6212235006b969148a37bc47b4715ef276bd632581c80a39b28f565f5c12235c315ba78e1e251d7c51126af0bd6e2ea32b087616edf595665538a142e
SSDEEP

768:OAoPDwgJOSpuqldThkwh77RXk6mJomGSvFFRPa9Kb6POChgOObKY:OVDwgJOSp7ZvZu19dFA9Kb6POCSHGY

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

Version

5.0

someone-proportion.gl.at.ply.gg:16444

Mutex

pLZANQ75KjAVVEWN

Attributes

Install_directory
%ProgramData%
install_file
System.exe

aes.plain

Signatures

Detect Xworm Payload 2 IoCs

resource	yara_rule
behavioral1/memory/2716-1-0x0000000000EB0000-0x0000000000EC2000-memory.dmp	family_xworm
behavioral1/files/0x000400000001e5b3-58.dat	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
1132	powershell.exe
2088	powershell.exe
4512	powershell.exe
512	powershell.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Control Panel\International\Geo\Nation	Solara.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\System.lnk	Solara.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\System.lnk	Solara.exe

Executes dropped EXE 1 IoCs

pid	Process
1980	System.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-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\System = "C:\\ProgramData\\System.exe"	Solara.exe

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

System Information Discovery
T1082

Checks SCSI registry key(s) 3 TTPs 3 IoCs

SCSI information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000\Properties\{b725f130-47ef-101a-a5f1-02608c9eebac}\000A	taskmgr.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000\FriendlyName	taskmgr.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000	taskmgr.exe

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
1712	schtasks.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
1132	powershell.exe
1132	powershell.exe
2088	powershell.exe
2088	powershell.exe
4512	powershell.exe
4512	powershell.exe
512	powershell.exe
512	powershell.exe
2716	Solara.exe
2716	Solara.exe
2716	Solara.exe
2716	Solara.exe
2716	Solara.exe
2716	Solara.exe
2716	Solara.exe
2716	Solara.exe
2716	Solara.exe
2716	Solara.exe
2716	Solara.exe
2716	Solara.exe
2716	Solara.exe
2716	Solara.exe
2716	Solara.exe
2716	Solara.exe
4024	taskmgr.exe
4024	taskmgr.exe
4024	taskmgr.exe
4024	taskmgr.exe
4024	taskmgr.exe
4024	taskmgr.exe
2716	Solara.exe
2716	Solara.exe
2716	Solara.exe
2716	Solara.exe
4024	taskmgr.exe
2716	Solara.exe
2716	Solara.exe
2716	Solara.exe
2716	Solara.exe
2716	Solara.exe
2716	Solara.exe
4024	taskmgr.exe
2716	Solara.exe
2716	Solara.exe
2716	Solara.exe
2716	Solara.exe
2716	Solara.exe
2716	Solara.exe
4024	taskmgr.exe
2716	Solara.exe
2716	Solara.exe
2716	Solara.exe
2716	Solara.exe
2716	Solara.exe
2716	Solara.exe
2716	Solara.exe
2716	Solara.exe
4024	taskmgr.exe
2716	Solara.exe
2716	Solara.exe
2716	Solara.exe
2716	Solara.exe
2716	Solara.exe
2716	Solara.exe

Suspicious use of AdjustPrivilegeToken 10 IoCs

description	pid	Process
Token: SeDebugPrivilege	2716	Solara.exe
Token: SeDebugPrivilege	1132	powershell.exe
Token: SeDebugPrivilege	2088	powershell.exe
Token: SeDebugPrivilege	4512	powershell.exe
Token: SeDebugPrivilege	512	powershell.exe
Token: SeDebugPrivilege	2716	Solara.exe
Token: SeDebugPrivilege	1980	System.exe
Token: SeDebugPrivilege	4024	taskmgr.exe
Token: SeSystemProfilePrivilege	4024	taskmgr.exe
Token: SeCreateGlobalPrivilege	4024	taskmgr.exe

Suspicious use of FindShellTrayWindow 34 IoCs

pid	Process
4024	taskmgr.exe
4024	taskmgr.exe
4024	taskmgr.exe
4024	taskmgr.exe
4024	taskmgr.exe
4024	taskmgr.exe
4024	taskmgr.exe
4024	taskmgr.exe
4024	taskmgr.exe
4024	taskmgr.exe
4024	taskmgr.exe
4024	taskmgr.exe
4024	taskmgr.exe
4024	taskmgr.exe
4024	taskmgr.exe
4024	taskmgr.exe
4024	taskmgr.exe
4024	taskmgr.exe
4024	taskmgr.exe
4024	taskmgr.exe
4024	taskmgr.exe
4024	taskmgr.exe
4024	taskmgr.exe
4024	taskmgr.exe
4024	taskmgr.exe
4024	taskmgr.exe
4024	taskmgr.exe
4024	taskmgr.exe
4024	taskmgr.exe
4024	taskmgr.exe
4024	taskmgr.exe
4024	taskmgr.exe
4024	taskmgr.exe
4024	taskmgr.exe

Suspicious use of SendNotifyMessage 34 IoCs

pid	Process
4024	taskmgr.exe
4024	taskmgr.exe
4024	taskmgr.exe
4024	taskmgr.exe
4024	taskmgr.exe
4024	taskmgr.exe
4024	taskmgr.exe
4024	taskmgr.exe
4024	taskmgr.exe
4024	taskmgr.exe
4024	taskmgr.exe
4024	taskmgr.exe
4024	taskmgr.exe
4024	taskmgr.exe
4024	taskmgr.exe
4024	taskmgr.exe
4024	taskmgr.exe
4024	taskmgr.exe
4024	taskmgr.exe
4024	taskmgr.exe
4024	taskmgr.exe
4024	taskmgr.exe
4024	taskmgr.exe
4024	taskmgr.exe
4024	taskmgr.exe
4024	taskmgr.exe
4024	taskmgr.exe
4024	taskmgr.exe
4024	taskmgr.exe
4024	taskmgr.exe
4024	taskmgr.exe
4024	taskmgr.exe
4024	taskmgr.exe
4024	taskmgr.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2716	Solara.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 2716 wrote to memory of 1132	2716	Solara.exe	86
PID 2716 wrote to memory of 1132	2716	Solara.exe	86
PID 2716 wrote to memory of 2088	2716	Solara.exe	88
PID 2716 wrote to memory of 2088	2716	Solara.exe	88
PID 2716 wrote to memory of 4512	2716	Solara.exe	90
PID 2716 wrote to memory of 4512	2716	Solara.exe	90
PID 2716 wrote to memory of 512	2716	Solara.exe	92
PID 2716 wrote to memory of 512	2716	Solara.exe	92
PID 2716 wrote to memory of 1712	2716	Solara.exe	94
PID 2716 wrote to memory of 1712	2716	Solara.exe	94

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\Solara.exe
"C:\Users\Admin\AppData\Local\Temp\Solara.exe"
1⤵
- Checks computer location settings
- 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:2716
- 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\Solara.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1132
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'Solara.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2088
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\ProgramData\System.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4512
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'System.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:512
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "System" /tr "C:\ProgramData\System.exe"
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:1712

C:\ProgramData\System.exe
C:\ProgramData\System.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:1980

C:\Windows\system32\taskmgr.exe
"C:\Windows\system32\taskmgr.exe" /7
1⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:4024

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\ProgramData\System.exe

Filesize
43KB

MD5
a5c594f36fccf6f04552fd2ef8cca82a

SHA1
654fd3bbe89442840010a7cbeccb2346adb0c2d1

SHA256
b3448f4ae8060638bdad47bc3000afd0d5980fe66e09b6b64ae9da9134dcd9b5

SHA512
a66c8ee6212235006b969148a37bc47b4715ef276bd632581c80a39b28f565f5c12235c315ba78e1e251d7c51126af0bd6e2ea32b087616edf595665538a142e

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log

Filesize
2KB

MD5
d85ba6ff808d9e5444a4b369f5bc2730

SHA1
31aa9d96590fff6981b315e0b391b575e4c0804a

SHA256
84739c608a73509419748e4e20e6cc4e1846056c3fe1929a8300d5a1a488202f

SHA512
8c414eb55b45212af385accc16d9d562adba2123583ce70d22b91161fe878683845512a78f04dedd4ea98ed9b174dbfa98cf696370598ad8e6fbd1e714f1f249

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
944B

MD5
6d3e9c29fe44e90aae6ed30ccf799ca8

SHA1
c7974ef72264bbdf13a2793ccf1aed11bc565dce

SHA256
2360634e63e8f0b5748e2c56ebb8f4aa78e71008ea7b5c9ca1c49be03b49557d

SHA512
60c38c4367352537545d859f64b9c5cbada94240478d1d039fd27b5ecba4dc1c90051557c16d802269703b873546ead416279c0a80c6fd5e49ad361cef22596a

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
944B

MD5
22310ad6749d8cc38284aa616efcd100

SHA1
440ef4a0a53bfa7c83fe84326a1dff4326dcb515

SHA256
55b1d8021c4eb4c3c0d75e3ed7a4eb30cd0123e3d69f32eeb596fe4ffec05abf

SHA512
2ef08e2ee15bb86695fe0c10533014ffed76ececc6e579d299d3365fafb7627f53e32e600bb6d872b9f58aca94f8cb7e1e94cdfd14777527f7f0aa019d9c6def

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
944B

MD5
34f595487e6bfd1d11c7de88ee50356a

SHA1
4caad088c15766cc0fa1f42009260e9a02f953bb

SHA256
0f9a4b52e01cb051052228a55d0515911b7ef5a8db3cf925528c746df511424d

SHA512
10976c5deaf9fac449e703e852c3b08d099f430de2d7c7b8e2525c35d63e28b890e5aab63feff9b20bca0aaf9f35a3ba411aee3fbeee9ea59f90ed25bd617a0b

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_zvchhxi1.jzw.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\System.lnk

Filesize
665B

MD5
83b71d379f82e243981740a5a69a2432

SHA1
015de91aca7bb850382d38b785b78448096acbd2

SHA256
19a871c529d447e24dd33042712248240e194ec14178c3333a3a5d0b140fbd89

SHA512
ffb0bb752a0eb8c9339141009a425ab4b3f37cb89d88973485e1c7c50b69e8d9e2618911eb8150046fcf2dcd0977dac412ce0f5e9c5379d799f4659cd4c1f450

Download Submit
memory/1132-2-0x000002533E0D0000-0x000002533E0F2000-memory.dmp

Filesize
136KB

Download
memory/1132-12-0x00007FFA89BB0000-0x00007FFA8A671000-memory.dmp

Filesize
10.8MB

Download
memory/1132-13-0x00007FFA89BB0000-0x00007FFA8A671000-memory.dmp

Filesize
10.8MB

Download
memory/1132-14-0x00007FFA89BB0000-0x00007FFA8A671000-memory.dmp

Filesize
10.8MB

Download
memory/1132-17-0x00007FFA89BB0000-0x00007FFA8A671000-memory.dmp

Filesize
10.8MB

Download
memory/2716-56-0x00007FFA89BB0000-0x00007FFA8A671000-memory.dmp

Filesize
10.8MB

Download
memory/2716-57-0x00007FFA89BB0000-0x00007FFA8A671000-memory.dmp

Filesize
10.8MB

Download
memory/2716-0-0x00007FFA89BB3000-0x00007FFA89BB5000-memory.dmp

Filesize
8KB

Download
memory/2716-1-0x0000000000EB0000-0x0000000000EC2000-memory.dmp

Filesize
72KB

Download
memory/4024-77-0x00000273BA650000-0x00000273BA651000-memory.dmp

Filesize
4KB

Download
memory/4024-66-0x00000273BA650000-0x00000273BA651000-memory.dmp

Filesize
4KB

Download
memory/4024-71-0x00000273BA650000-0x00000273BA651000-memory.dmp

Filesize
4KB

Download
memory/4024-67-0x00000273BA650000-0x00000273BA651000-memory.dmp

Filesize
4KB

Download
memory/4024-76-0x00000273BA650000-0x00000273BA651000-memory.dmp

Filesize
4KB

Download
memory/4024-75-0x00000273BA650000-0x00000273BA651000-memory.dmp

Filesize
4KB

Download
memory/4024-74-0x00000273BA650000-0x00000273BA651000-memory.dmp

Filesize
4KB

Download
memory/4024-73-0x00000273BA650000-0x00000273BA651000-memory.dmp

Filesize
4KB

Download
memory/4024-72-0x00000273BA650000-0x00000273BA651000-memory.dmp

Filesize
4KB

Download
memory/4024-65-0x00000273BA650000-0x00000273BA651000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

Errors

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads