xworm | 4db566fcdc413fe50153dc8431ae86192241f0e1e86071f80d42eb6e0fb5baca

Analysis

max time kernel
121s
max time network
149s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
31/10/2024, 09:36

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General

Target

SSBottmacEngineersPvt.Ltd..exe
Size

562KB
MD5

ff9e45d7326698f34526793bf1244811
SHA1

b3ff69abfe1c5e6633a866ffbebe2139a69e3f0a
SHA256

4db566fcdc413fe50153dc8431ae86192241f0e1e86071f80d42eb6e0fb5baca
SHA512

ed2e02262beb00f77c5d17854c7b6544cdb4edce37e870505e21c0cd08999cb99904a667e5ed31cde3a3437c4e9713e6bfc63f091b30a9cec25a046ad0120657
SSDEEP

12288:FDxrXQ9TZweejcQ1FXQEcupRk6CvPlZ0wJOszYkR:ZQejd1BpcupC6Cb0qL

Score

10^/10

xworm discovery execution persistence rat trojan

Malware Config

Extracted

Family

xworm

Version

3.1

kanrplest.duckdns.org:4068

Mutex

TdUxMCK2FUdy51AH

Attributes

Install_directory
%AppData%
install_file
USB.exe

aes.plain

Signatures

Detect Xworm Payload 5 IoCs

resource	yara_rule
behavioral1/memory/2804-25-0x0000000000400000-0x0000000000410000-memory.dmp	family_xworm
behavioral1/memory/2804-23-0x0000000000400000-0x0000000000410000-memory.dmp	family_xworm
behavioral1/memory/2804-28-0x0000000000400000-0x0000000000410000-memory.dmp	family_xworm
behavioral1/memory/2804-30-0x0000000000400000-0x0000000000410000-memory.dmp	family_xworm
behavioral1/memory/2804-29-0x0000000000400000-0x0000000000410000-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 5 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
3008	powershell.exe
1964	powershell.exe
1988	powershell.exe
2336	powershell.exe
2644	powershell.exe

Drops startup file 2 IoCs

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

Loads dropped DLL 1 IoCs

pid	Process
2804	SSBottmacEngineersPvt.Ltd..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-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Windows\CurrentVersion\Run\SSBottmacEngineersPvt.Ltd. = "C:\\Users\\Admin\\AppData\\Roaming\\SSBottmacEngineersPvt.Ltd..exe"	SSBottmacEngineersPvt.Ltd..exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2984 set thread context of 2804	2984	SSBottmacEngineersPvt.Ltd..exe	37

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 8 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	SSBottmacEngineersPvt.Ltd..exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	SSBottmacEngineersPvt.Ltd..exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.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
2708	schtasks.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
2336	powershell.exe
2644	powershell.exe
3008	powershell.exe
1964	powershell.exe
1988	powershell.exe
2804	SSBottmacEngineersPvt.Ltd..exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	2804	SSBottmacEngineersPvt.Ltd..exe
Token: SeDebugPrivilege	2644	powershell.exe
Token: SeDebugPrivilege	2336	powershell.exe
Token: SeDebugPrivilege	3008	powershell.exe
Token: SeDebugPrivilege	1964	powershell.exe
Token: SeDebugPrivilege	1988	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2804	SSBottmacEngineersPvt.Ltd..exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 2984 wrote to memory of 2336	2984	SSBottmacEngineersPvt.Ltd..exe	31
PID 2984 wrote to memory of 2336	2984	SSBottmacEngineersPvt.Ltd..exe	31
PID 2984 wrote to memory of 2336	2984	SSBottmacEngineersPvt.Ltd..exe	31
PID 2984 wrote to memory of 2336	2984	SSBottmacEngineersPvt.Ltd..exe	31
PID 2984 wrote to memory of 2644	2984	SSBottmacEngineersPvt.Ltd..exe	33
PID 2984 wrote to memory of 2644	2984	SSBottmacEngineersPvt.Ltd..exe	33
PID 2984 wrote to memory of 2644	2984	SSBottmacEngineersPvt.Ltd..exe	33
PID 2984 wrote to memory of 2644	2984	SSBottmacEngineersPvt.Ltd..exe	33
PID 2984 wrote to memory of 2708	2984	SSBottmacEngineersPvt.Ltd..exe	35
PID 2984 wrote to memory of 2708	2984	SSBottmacEngineersPvt.Ltd..exe	35
PID 2984 wrote to memory of 2708	2984	SSBottmacEngineersPvt.Ltd..exe	35
PID 2984 wrote to memory of 2708	2984	SSBottmacEngineersPvt.Ltd..exe	35
PID 2984 wrote to memory of 2804	2984	SSBottmacEngineersPvt.Ltd..exe	37
PID 2984 wrote to memory of 2804	2984	SSBottmacEngineersPvt.Ltd..exe	37
PID 2984 wrote to memory of 2804	2984	SSBottmacEngineersPvt.Ltd..exe	37
PID 2984 wrote to memory of 2804	2984	SSBottmacEngineersPvt.Ltd..exe	37
PID 2984 wrote to memory of 2804	2984	SSBottmacEngineersPvt.Ltd..exe	37
PID 2984 wrote to memory of 2804	2984	SSBottmacEngineersPvt.Ltd..exe	37
PID 2984 wrote to memory of 2804	2984	SSBottmacEngineersPvt.Ltd..exe	37
PID 2984 wrote to memory of 2804	2984	SSBottmacEngineersPvt.Ltd..exe	37
PID 2984 wrote to memory of 2804	2984	SSBottmacEngineersPvt.Ltd..exe	37
PID 2804 wrote to memory of 3008	2804	SSBottmacEngineersPvt.Ltd..exe	38
PID 2804 wrote to memory of 3008	2804	SSBottmacEngineersPvt.Ltd..exe	38
PID 2804 wrote to memory of 3008	2804	SSBottmacEngineersPvt.Ltd..exe	38
PID 2804 wrote to memory of 3008	2804	SSBottmacEngineersPvt.Ltd..exe	38
PID 2804 wrote to memory of 1964	2804	SSBottmacEngineersPvt.Ltd..exe	40
PID 2804 wrote to memory of 1964	2804	SSBottmacEngineersPvt.Ltd..exe	40
PID 2804 wrote to memory of 1964	2804	SSBottmacEngineersPvt.Ltd..exe	40
PID 2804 wrote to memory of 1964	2804	SSBottmacEngineersPvt.Ltd..exe	40
PID 2804 wrote to memory of 1988	2804	SSBottmacEngineersPvt.Ltd..exe	42
PID 2804 wrote to memory of 1988	2804	SSBottmacEngineersPvt.Ltd..exe	42
PID 2804 wrote to memory of 1988	2804	SSBottmacEngineersPvt.Ltd..exe	42
PID 2804 wrote to memory of 1988	2804	SSBottmacEngineersPvt.Ltd..exe	42

C:\Users\Admin\AppData\Local\Temp\SSBottmacEngineersPvt.Ltd..exe
"C:\Users\Admin\AppData\Local\Temp\SSBottmacEngineersPvt.Ltd..exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2984
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\SSBottmacEngineersPvt.Ltd..exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2336
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\RTUZKYTc.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2644
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\RTUZKYTc" /XML "C:\Users\Admin\AppData\Local\Temp\tmp9A2.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2708
- C:\Users\Admin\AppData\Local\Temp\SSBottmacEngineersPvt.Ltd..exe
  "C:\Users\Admin\AppData\Local\Temp\SSBottmacEngineersPvt.Ltd..exe"
  2⤵
  - Drops startup file
  - Loads dropped DLL
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2804
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\SSBottmacEngineersPvt.Ltd..exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:3008
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'SSBottmacEngineersPvt.Ltd..exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1964
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Roaming\SSBottmacEngineersPvt.Ltd..exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1988

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

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp9A2.tmp

Filesize
1KB

MD5
10838320baec2960775333f15b96af0f

SHA1
826304004721b2c154862d4b3ca563d5b760588f

SHA256
acab90bd0951d758519098868586c16299c946a447ad72d0b3823aab2a4e39b7

SHA512
22eca6d7286c887dd083c180e9a94d89170df430681f84ab9f94356e37e94aed15242b9cb26887fb791b5939829cf76a478a6328c69c800158c3e844fd0d141c

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms

Filesize
7KB

MD5
099873ca39b209a99cebcb6f17410310

SHA1
ae1098c3dbf8235da0cdd2b0f75a44142fb67ae2

SHA256
4c56b8296abb012b35d8eabd06f2fb1154ab6b5a572aab26e06821e49eb11ed5

SHA512
a20a5a34603f8c0e85703976a8f87cb71634e7500792e9c34316a7198192d6396d6a02baa5cb304390066b4af59c751ef949b6217277e29e42894238afea9c77

Download Submit
C:\Users\Admin\AppData\Roaming\SSBottmacEngineersPvt.Ltd..exe

Filesize
562KB

MD5
ff9e45d7326698f34526793bf1244811

SHA1
b3ff69abfe1c5e6633a866ffbebe2139a69e3f0a

SHA256
4db566fcdc413fe50153dc8431ae86192241f0e1e86071f80d42eb6e0fb5baca

SHA512
ed2e02262beb00f77c5d17854c7b6544cdb4edce37e870505e21c0cd08999cb99904a667e5ed31cde3a3437c4e9713e6bfc63f091b30a9cec25a046ad0120657

Download Submit
memory/2804-29-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/2804-30-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/2804-27-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2804-28-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/2804-19-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/2804-25-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/2804-23-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/2804-21-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/2984-3-0x0000000000BC0000-0x0000000000BDC000-memory.dmp

Filesize
112KB

Download
memory/2984-4-0x000000007454E000-0x000000007454F000-memory.dmp

Filesize
4KB

Download
memory/2984-5-0x0000000074540000-0x0000000074C2E000-memory.dmp

Filesize
6.9MB

Download
memory/2984-0-0x000000007454E000-0x000000007454F000-memory.dmp

Filesize
4KB

Download
memory/2984-6-0x00000000008B0000-0x0000000000902000-memory.dmp

Filesize
328KB

Download
memory/2984-31-0x0000000074540000-0x0000000074C2E000-memory.dmp

Filesize
6.9MB

Download
memory/2984-2-0x0000000074540000-0x0000000074C2E000-memory.dmp

Filesize
6.9MB

Download
memory/2984-1-0x0000000001080000-0x0000000001110000-memory.dmp

Filesize
576KB

Download