xworm | b5e520b8f9aa8fba0e106406628802faf9fbc927bf2a09aba6270afe3b0a3c4c

General

Target

b5e520b8f9aa8fba0e106406628802faf9fbc927bf2a09aba6270afe3b0a3c4c.exe
Size

59KB
MD5

13f8ea6f22766a2a3fab7161647b1d00
SHA1

af696ffbb96d8dbb29077ab11c4d2f91f73b618a
SHA256

b5e520b8f9aa8fba0e106406628802faf9fbc927bf2a09aba6270afe3b0a3c4c
SHA512

c0903a9880f4560797fa3dcac362990969529811acdbebf78108ca53a636065d3f1915a73e2a6caa7fc059b2b5561d972b4aa62fdb83d1fe8c4116b2294cd9eb
SSDEEP

1536:zDT94NmEa2JFvnkbAqjniRfi6N+yOUtvJ7:vTvEa2JhkbAq+xOcvJ7

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

C2

127.0.0.1:9935

additional-ll.gl.at.ply.gg:9935

Attributes

Install_directory
%AppData%
install_file
solara.exe

Signatures

Detect Xworm Payload 1 IoCs

resource	yara_rule
behavioral1/memory/1324-1-0x0000000001240000-0x0000000001256000-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
2544	powershell.exe
2776	powershell.exe
1992	powershell.exe
2064	powershell.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\solara.lnk	b5e520b8f9aa8fba0e106406628802faf9fbc927bf2a09aba6270afe3b0a3c4c.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\solara.lnk	b5e520b8f9aa8fba0e106406628802faf9fbc927bf2a09aba6270afe3b0a3c4c.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-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Windows\CurrentVersion\Run\solara = "C:\\Users\\Admin\\AppData\\Roaming\\solara.exe"	b5e520b8f9aa8fba0e106406628802faf9fbc927bf2a09aba6270afe3b0a3c4c.exe

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
1992	powershell.exe
2064	powershell.exe
2544	powershell.exe
2776	powershell.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	1324	b5e520b8f9aa8fba0e106406628802faf9fbc927bf2a09aba6270afe3b0a3c4c.exe
Token: SeDebugPrivilege	1992	powershell.exe
Token: SeDebugPrivilege	2064	powershell.exe
Token: SeDebugPrivilege	2544	powershell.exe
Token: SeDebugPrivilege	2776	powershell.exe
Token: SeDebugPrivilege	1324	b5e520b8f9aa8fba0e106406628802faf9fbc927bf2a09aba6270afe3b0a3c4c.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 1324 wrote to memory of 1992	1324	b5e520b8f9aa8fba0e106406628802faf9fbc927bf2a09aba6270afe3b0a3c4c.exe	31
PID 1324 wrote to memory of 1992	1324	b5e520b8f9aa8fba0e106406628802faf9fbc927bf2a09aba6270afe3b0a3c4c.exe	31
PID 1324 wrote to memory of 1992	1324	b5e520b8f9aa8fba0e106406628802faf9fbc927bf2a09aba6270afe3b0a3c4c.exe	31
PID 1324 wrote to memory of 2064	1324	b5e520b8f9aa8fba0e106406628802faf9fbc927bf2a09aba6270afe3b0a3c4c.exe	33
PID 1324 wrote to memory of 2064	1324	b5e520b8f9aa8fba0e106406628802faf9fbc927bf2a09aba6270afe3b0a3c4c.exe	33
PID 1324 wrote to memory of 2064	1324	b5e520b8f9aa8fba0e106406628802faf9fbc927bf2a09aba6270afe3b0a3c4c.exe	33
PID 1324 wrote to memory of 2544	1324	b5e520b8f9aa8fba0e106406628802faf9fbc927bf2a09aba6270afe3b0a3c4c.exe	35
PID 1324 wrote to memory of 2544	1324	b5e520b8f9aa8fba0e106406628802faf9fbc927bf2a09aba6270afe3b0a3c4c.exe	35
PID 1324 wrote to memory of 2544	1324	b5e520b8f9aa8fba0e106406628802faf9fbc927bf2a09aba6270afe3b0a3c4c.exe	35
PID 1324 wrote to memory of 2776	1324	b5e520b8f9aa8fba0e106406628802faf9fbc927bf2a09aba6270afe3b0a3c4c.exe	37
PID 1324 wrote to memory of 2776	1324	b5e520b8f9aa8fba0e106406628802faf9fbc927bf2a09aba6270afe3b0a3c4c.exe	37
PID 1324 wrote to memory of 2776	1324	b5e520b8f9aa8fba0e106406628802faf9fbc927bf2a09aba6270afe3b0a3c4c.exe	37

C:\Users\Admin\AppData\Local\Temp\b5e520b8f9aa8fba0e106406628802faf9fbc927bf2a09aba6270afe3b0a3c4c.exe
"C:\Users\Admin\AppData\Local\Temp\b5e520b8f9aa8fba0e106406628802faf9fbc927bf2a09aba6270afe3b0a3c4c.exe"
1⤵
- Drops startup file
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1324
- 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\b5e520b8f9aa8fba0e106406628802faf9fbc927bf2a09aba6270afe3b0a3c4c.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1992
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'b5e520b8f9aa8fba0e106406628802faf9fbc927bf2a09aba6270afe3b0a3c4c.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2064
- 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\solara.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2544
- 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:2776

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

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\590aee7bdd69b59b.customDestinations-ms

Filesize
7KB

MD5
ec6cb741a96f9f98e7daf025b2e70027

SHA1
bbb0480f2889ba64c6137b331331635eff6f768b

SHA256
4c1c053cbbed1a02c4c57681daa85a25402a596d9d15be79559ab004c9044c86

SHA512
afef9529da45f8d6812e51ab87d4732dccc139a3097e2fe5c3bb21e63d23d2ef83e09dff6b9a8bcb1c5df761219f42f3d525ece7a51d7e0f58591c29bb562e3f

Download Submit
memory/1324-0-0x000007FEF5813000-0x000007FEF5814000-memory.dmp

Filesize
4KB

Download
memory/1324-1-0x0000000001240000-0x0000000001256000-memory.dmp

Filesize
88KB

Download
memory/1324-32-0x000000001B300000-0x000000001B380000-memory.dmp

Filesize
512KB

Download
memory/1324-33-0x000007FEF5813000-0x000007FEF5814000-memory.dmp

Filesize
4KB

Download
memory/1324-34-0x000000001B300000-0x000000001B380000-memory.dmp

Filesize
512KB

Download
memory/1992-6-0x0000000002900000-0x0000000002980000-memory.dmp

Filesize
512KB

Download
memory/1992-7-0x000000001B6B0000-0x000000001B992000-memory.dmp

Filesize
2.9MB

Download
memory/1992-8-0x0000000001EF0000-0x0000000001EF8000-memory.dmp

Filesize
32KB

Download
memory/2064-15-0x0000000002240000-0x0000000002248000-memory.dmp

Filesize
32KB

Download
memory/2064-14-0x000000001B5C0000-0x000000001B8A2000-memory.dmp

Filesize
2.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads