xworm | 4caf658df95093967742e497c6f0cfd91e0729416df2754cb69a8db9ab74b5f6

Analysis

max time kernel
38s
max time network
144s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
01/11/2024, 03:34

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General

Target

SS Bottmac Engineers Pvt. 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/2704-30-0x0000000000400000-0x0000000000410000-memory.dmp	family_xworm
behavioral1/memory/2704-29-0x0000000000400000-0x0000000000410000-memory.dmp	family_xworm
behavioral1/memory/2704-28-0x0000000000400000-0x0000000000410000-memory.dmp	family_xworm
behavioral1/memory/2704-23-0x0000000000400000-0x0000000000410000-memory.dmp	family_xworm
behavioral1/memory/2704-25-0x0000000000400000-0x0000000000410000-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
2948	powershell.exe
2444	powershell.exe
2548	powershell.exe
2280	powershell.exe
484	powershell.exe

Drops startup file 2 IoCs

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

Loads dropped DLL 1 IoCs

pid	Process
2704	SS Bottmac Engineers Pvt. 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-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Windows\CurrentVersion\Run\SS Bottmac Engineers Pvt. Ltd. = "C:\\Users\\Admin\\AppData\\Roaming\\SS Bottmac Engineers Pvt. Ltd..exe"	SS Bottmac Engineers Pvt. Ltd..exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1820 set thread context of 2704	1820	SS Bottmac Engineers Pvt. Ltd..exe	35

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	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	SS Bottmac Engineers Pvt. 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	SS Bottmac Engineers Pvt. Ltd..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
1136	schtasks.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
1820	SS Bottmac Engineers Pvt. Ltd..exe
1820	SS Bottmac Engineers Pvt. Ltd..exe
2444	powershell.exe
2948	powershell.exe
2548	powershell.exe
2280	powershell.exe
484	powershell.exe
2704	SS Bottmac Engineers Pvt. Ltd..exe

Suspicious use of AdjustPrivilegeToken 7 IoCs

description	pid	Process
Token: SeDebugPrivilege	1820	SS Bottmac Engineers Pvt. Ltd..exe
Token: SeDebugPrivilege	2704	SS Bottmac Engineers Pvt. Ltd..exe
Token: SeDebugPrivilege	2444	powershell.exe
Token: SeDebugPrivilege	2948	powershell.exe
Token: SeDebugPrivilege	2548	powershell.exe
Token: SeDebugPrivilege	2280	powershell.exe
Token: SeDebugPrivilege	484	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2704	SS Bottmac Engineers Pvt. Ltd..exe

Suspicious use of WriteProcessMemory 37 IoCs

description	pid	Process	procid_target
PID 1820 wrote to memory of 2444	1820	SS Bottmac Engineers Pvt. Ltd..exe	28
PID 1820 wrote to memory of 2444	1820	SS Bottmac Engineers Pvt. Ltd..exe	28
PID 1820 wrote to memory of 2444	1820	SS Bottmac Engineers Pvt. Ltd..exe	28
PID 1820 wrote to memory of 2444	1820	SS Bottmac Engineers Pvt. Ltd..exe	28
PID 1820 wrote to memory of 2948	1820	SS Bottmac Engineers Pvt. Ltd..exe	30
PID 1820 wrote to memory of 2948	1820	SS Bottmac Engineers Pvt. Ltd..exe	30
PID 1820 wrote to memory of 2948	1820	SS Bottmac Engineers Pvt. Ltd..exe	30
PID 1820 wrote to memory of 2948	1820	SS Bottmac Engineers Pvt. Ltd..exe	30
PID 1820 wrote to memory of 1136	1820	SS Bottmac Engineers Pvt. Ltd..exe	32
PID 1820 wrote to memory of 1136	1820	SS Bottmac Engineers Pvt. Ltd..exe	32
PID 1820 wrote to memory of 1136	1820	SS Bottmac Engineers Pvt. Ltd..exe	32
PID 1820 wrote to memory of 1136	1820	SS Bottmac Engineers Pvt. Ltd..exe	32
PID 1820 wrote to memory of 2752	1820	SS Bottmac Engineers Pvt. Ltd..exe	34
PID 1820 wrote to memory of 2752	1820	SS Bottmac Engineers Pvt. Ltd..exe	34
PID 1820 wrote to memory of 2752	1820	SS Bottmac Engineers Pvt. Ltd..exe	34
PID 1820 wrote to memory of 2752	1820	SS Bottmac Engineers Pvt. Ltd..exe	34
PID 1820 wrote to memory of 2704	1820	SS Bottmac Engineers Pvt. Ltd..exe	35
PID 1820 wrote to memory of 2704	1820	SS Bottmac Engineers Pvt. Ltd..exe	35
PID 1820 wrote to memory of 2704	1820	SS Bottmac Engineers Pvt. Ltd..exe	35
PID 1820 wrote to memory of 2704	1820	SS Bottmac Engineers Pvt. Ltd..exe	35
PID 1820 wrote to memory of 2704	1820	SS Bottmac Engineers Pvt. Ltd..exe	35
PID 1820 wrote to memory of 2704	1820	SS Bottmac Engineers Pvt. Ltd..exe	35
PID 1820 wrote to memory of 2704	1820	SS Bottmac Engineers Pvt. Ltd..exe	35
PID 1820 wrote to memory of 2704	1820	SS Bottmac Engineers Pvt. Ltd..exe	35
PID 1820 wrote to memory of 2704	1820	SS Bottmac Engineers Pvt. Ltd..exe	35
PID 2704 wrote to memory of 2548	2704	SS Bottmac Engineers Pvt. Ltd..exe	36
PID 2704 wrote to memory of 2548	2704	SS Bottmac Engineers Pvt. Ltd..exe	36
PID 2704 wrote to memory of 2548	2704	SS Bottmac Engineers Pvt. Ltd..exe	36
PID 2704 wrote to memory of 2548	2704	SS Bottmac Engineers Pvt. Ltd..exe	36
PID 2704 wrote to memory of 2280	2704	SS Bottmac Engineers Pvt. Ltd..exe	38
PID 2704 wrote to memory of 2280	2704	SS Bottmac Engineers Pvt. Ltd..exe	38
PID 2704 wrote to memory of 2280	2704	SS Bottmac Engineers Pvt. Ltd..exe	38
PID 2704 wrote to memory of 2280	2704	SS Bottmac Engineers Pvt. Ltd..exe	38
PID 2704 wrote to memory of 484	2704	SS Bottmac Engineers Pvt. Ltd..exe	40
PID 2704 wrote to memory of 484	2704	SS Bottmac Engineers Pvt. Ltd..exe	40
PID 2704 wrote to memory of 484	2704	SS Bottmac Engineers Pvt. Ltd..exe	40
PID 2704 wrote to memory of 484	2704	SS Bottmac Engineers Pvt. Ltd..exe	40

C:\Users\Admin\AppData\Local\Temp\SS Bottmac Engineers Pvt. Ltd..exe
"C:\Users\Admin\AppData\Local\Temp\SS Bottmac Engineers Pvt. Ltd..exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1820
- 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\SS Bottmac Engineers Pvt. Ltd..exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2444
- 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:2948
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\RTUZKYTc" /XML "C:\Users\Admin\AppData\Local\Temp\tmp2D19.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:1136
- C:\Users\Admin\AppData\Local\Temp\SS Bottmac Engineers Pvt. Ltd..exe
  "C:\Users\Admin\AppData\Local\Temp\SS Bottmac Engineers Pvt. Ltd..exe"
  2⤵
  PID:2752
- C:\Users\Admin\AppData\Local\Temp\SS Bottmac Engineers Pvt. Ltd..exe
  "C:\Users\Admin\AppData\Local\Temp\SS Bottmac Engineers Pvt. 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:2704
- - 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\SS Bottmac Engineers Pvt. Ltd..exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2548
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'SS Bottmac Engineers Pvt. Ltd..exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2280
- - 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\SS Bottmac Engineers Pvt. Ltd..exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:484

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\tmp2D19.tmp

Filesize
1KB

MD5
82ed3fe69e999b5b06ccb9d1cbeaa2f0

SHA1
e801e68644e1d693f37eebcfe97e4a2ad3c0bc2a

SHA256
e5321a00d3897a3dedb6febfd15335ff617f05603703ebfaa898835b8c2c0d8b

SHA512
8ebaf0262aef56ef24d0c67d2823de6727ccf1b6e869ee0e06715e89b40ccf168cd669ac408d8542460a87a721d7311d78aa70e42193c9f5ec79396bd0ad6f2c

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\4F9KWPU78F02O30FVQD0.temp

Filesize
7KB

MD5
c800c68904c233816f53a21b019a7c68

SHA1
5ae06eb9c3c58456627896292da0ea4cad1be850

SHA256
2d05570398d52071678895e7b83dc3b12ac92f63289748c0f7ce87fa62ad4e01

SHA512
a2f9551e2f8b6cc3c325fb1d5bfaaaf7d907b50abb2cbe80b6ce3c17019131904bbd790d01c8742f82e61cfe30c8d55ff2432dfc8d00880993a1e7050e112317

Download Submit
C:\Users\Admin\AppData\Roaming\SS Bottmac Engineers Pvt. Ltd..exe

Filesize
562KB

MD5
ff9e45d7326698f34526793bf1244811

SHA1
b3ff69abfe1c5e6633a866ffbebe2139a69e3f0a

SHA256
4db566fcdc413fe50153dc8431ae86192241f0e1e86071f80d42eb6e0fb5baca

SHA512
ed2e02262beb00f77c5d17854c7b6544cdb4edce37e870505e21c0cd08999cb99904a667e5ed31cde3a3437c4e9713e6bfc63f091b30a9cec25a046ad0120657

Download Submit
memory/1820-1-0x0000000000A90000-0x0000000000B20000-memory.dmp

Filesize
576KB

Download
memory/1820-2-0x00000000746E0000-0x0000000074DCE000-memory.dmp

Filesize
6.9MB

Download
memory/1820-3-0x00000000006E0000-0x00000000006FC000-memory.dmp

Filesize
112KB

Download
memory/1820-4-0x00000000746EE000-0x00000000746EF000-memory.dmp

Filesize
4KB

Download
memory/1820-5-0x00000000746E0000-0x0000000074DCE000-memory.dmp

Filesize
6.9MB

Download
memory/1820-6-0x00000000003A0000-0x00000000003F2000-memory.dmp

Filesize
328KB

Download
memory/1820-31-0x00000000746E0000-0x0000000074DCE000-memory.dmp

Filesize
6.9MB

Download
memory/1820-0-0x00000000746EE000-0x00000000746EF000-memory.dmp

Filesize
4KB

Download
memory/2704-30-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/2704-27-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2704-25-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/2704-21-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/2704-19-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/2704-23-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/2704-28-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/2704-29-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download