xworm | b399f5d239807fe144ad8872b4111002ebc6bb79ea6faa417db37f5ff95100ee

General

Target

THITWNSEI24112908089786756456545346568789-00010.scr.exe
Size

504KB
MD5

dd81e5afcd1a13eee9f9a28c6cde2a56
SHA1

cf99a76fc406ffd81c62fbf07bd65c80eeae293f
SHA256

b399f5d239807fe144ad8872b4111002ebc6bb79ea6faa417db37f5ff95100ee
SHA512

b63633f877d4436bcd549a5bd79566d7d3eed7d3429ad44580b6f295caab9e44f562f45855cad6dff60ab5fbadc89c97289c31aac3b45e7f1df0476e610004be
SSDEEP

12288:uNIRt11XXjNZgYjirxY1dZqAi081zY5usx+XtJ:uNIp1XXjNIrq1S02zYx

Score

10^/10

xworm discovery execution rat trojan

Malware Config

Extracted

Family

xworm

C2

104.250.180.178:7061

Attributes

Install_directory
%AppData%
install_file
XClient.exe

Signatures

Detect Xworm Payload 5 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2644-13-0x0000000000400000-0x0000000000414000-memory.dmp	family_xworm
behavioral1/memory/2644-17-0x0000000000400000-0x0000000000414000-memory.dmp	family_xworm
behavioral1/memory/2644-15-0x0000000000400000-0x0000000000414000-memory.dmp	family_xworm
behavioral1/memory/2644-9-0x0000000000400000-0x0000000000414000-memory.dmp	family_xworm
behavioral1/memory/2644-10-0x0000000000400000-0x0000000000414000-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

Processes:

powershell.exepowershell.exepowershell.exepowershell.exe

pid	Process
2676	powershell.exe
2596	powershell.exe
2720	powershell.exe
2860	powershell.exe

Drops startup file 2 IoCs

Processes:

THITWNSEI24112908089786756456545346568789-00010.scr.exe

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\XClient.lnk	THITWNSEI24112908089786756456545346568789-00010.scr.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\XClient.lnk	THITWNSEI24112908089786756456545346568789-00010.scr.exe

Loads dropped DLL 1 IoCs

Processes:

THITWNSEI24112908089786756456545346568789-00010.scr.exe

pid	Process
2644	THITWNSEI24112908089786756456545346568789-00010.scr.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

THITWNSEI24112908089786756456545346568789-00010.scr.exe

description	pid	Process	procid_target
PID 2128 set thread context of 2644	2128	THITWNSEI24112908089786756456545346568789-00010.scr.exe	31

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 6 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

Processes:

THITWNSEI24112908089786756456545346568789-00010.scr.exeTHITWNSEI24112908089786756456545346568789-00010.scr.exepowershell.exepowershell.exepowershell.exepowershell.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	THITWNSEI24112908089786756456545346568789-00010.scr.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	THITWNSEI24112908089786756456545346568789-00010.scr.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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

Processes:

powershell.exepowershell.exepowershell.exepowershell.exeTHITWNSEI24112908089786756456545346568789-00010.scr.exe

pid	Process
2676	powershell.exe
2596	powershell.exe
2720	powershell.exe
2860	powershell.exe
2644	THITWNSEI24112908089786756456545346568789-00010.scr.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

Processes:

THITWNSEI24112908089786756456545346568789-00010.scr.exepowershell.exepowershell.exepowershell.exepowershell.exe

description	pid	Process
Token: SeDebugPrivilege	2644	THITWNSEI24112908089786756456545346568789-00010.scr.exe
Token: SeDebugPrivilege	2676	powershell.exe
Token: SeDebugPrivilege	2596	powershell.exe
Token: SeDebugPrivilege	2720	powershell.exe
Token: SeDebugPrivilege	2860	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

THITWNSEI24112908089786756456545346568789-00010.scr.exe

pid	Process
2644	THITWNSEI24112908089786756456545346568789-00010.scr.exe

Suspicious use of WriteProcessMemory 25 IoCs

Processes:

THITWNSEI24112908089786756456545346568789-00010.scr.exeTHITWNSEI24112908089786756456545346568789-00010.scr.exe

description	pid	Process	procid_target
PID 2128 wrote to memory of 2644	2128	THITWNSEI24112908089786756456545346568789-00010.scr.exe	31
PID 2128 wrote to memory of 2644	2128	THITWNSEI24112908089786756456545346568789-00010.scr.exe	31
PID 2128 wrote to memory of 2644	2128	THITWNSEI24112908089786756456545346568789-00010.scr.exe	31
PID 2128 wrote to memory of 2644	2128	THITWNSEI24112908089786756456545346568789-00010.scr.exe	31
PID 2128 wrote to memory of 2644	2128	THITWNSEI24112908089786756456545346568789-00010.scr.exe	31
PID 2128 wrote to memory of 2644	2128	THITWNSEI24112908089786756456545346568789-00010.scr.exe	31
PID 2128 wrote to memory of 2644	2128	THITWNSEI24112908089786756456545346568789-00010.scr.exe	31
PID 2128 wrote to memory of 2644	2128	THITWNSEI24112908089786756456545346568789-00010.scr.exe	31
PID 2128 wrote to memory of 2644	2128	THITWNSEI24112908089786756456545346568789-00010.scr.exe	31
PID 2644 wrote to memory of 2676	2644	THITWNSEI24112908089786756456545346568789-00010.scr.exe	32
PID 2644 wrote to memory of 2676	2644	THITWNSEI24112908089786756456545346568789-00010.scr.exe	32
PID 2644 wrote to memory of 2676	2644	THITWNSEI24112908089786756456545346568789-00010.scr.exe	32
PID 2644 wrote to memory of 2676	2644	THITWNSEI24112908089786756456545346568789-00010.scr.exe	32
PID 2644 wrote to memory of 2596	2644	THITWNSEI24112908089786756456545346568789-00010.scr.exe	34
PID 2644 wrote to memory of 2596	2644	THITWNSEI24112908089786756456545346568789-00010.scr.exe	34
PID 2644 wrote to memory of 2596	2644	THITWNSEI24112908089786756456545346568789-00010.scr.exe	34
PID 2644 wrote to memory of 2596	2644	THITWNSEI24112908089786756456545346568789-00010.scr.exe	34
PID 2644 wrote to memory of 2720	2644	THITWNSEI24112908089786756456545346568789-00010.scr.exe	36
PID 2644 wrote to memory of 2720	2644	THITWNSEI24112908089786756456545346568789-00010.scr.exe	36
PID 2644 wrote to memory of 2720	2644	THITWNSEI24112908089786756456545346568789-00010.scr.exe	36
PID 2644 wrote to memory of 2720	2644	THITWNSEI24112908089786756456545346568789-00010.scr.exe	36
PID 2644 wrote to memory of 2860	2644	THITWNSEI24112908089786756456545346568789-00010.scr.exe	38
PID 2644 wrote to memory of 2860	2644	THITWNSEI24112908089786756456545346568789-00010.scr.exe	38
PID 2644 wrote to memory of 2860	2644	THITWNSEI24112908089786756456545346568789-00010.scr.exe	38
PID 2644 wrote to memory of 2860	2644	THITWNSEI24112908089786756456545346568789-00010.scr.exe	38

C:\Users\Admin\AppData\Local\Temp\THITWNSEI24112908089786756456545346568789-00010.scr.exe
"C:\Users\Admin\AppData\Local\Temp\THITWNSEI24112908089786756456545346568789-00010.scr.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2128
- C:\Users\Admin\AppData\Local\Temp\THITWNSEI24112908089786756456545346568789-00010.scr.exe
  "C:\Users\Admin\AppData\Local\Temp\THITWNSEI24112908089786756456545346568789-00010.scr.exe"
  2⤵
  - Drops startup file
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2644
- - 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\THITWNSEI24112908089786756456545346568789-00010.scr.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2676
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'THITWNSEI24112908089786756456545346568789-00010.scr.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2596
- - 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\XClient.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2720
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'XClient.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2860

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
7KB

MD5
9f3498c60037e84d2576477ff051479a

SHA1
b8c766013b7c10a085a6877c056059e6e63bd40e

SHA256
3d949a6d0340d27af7905e86be051bc2bf6233b20fb901ef5f5655f0dd044153

SHA512
f26aee99e754cbe11e6b82ec921fc61fa69e4dd5f03f01c2547115eb85b2d3360d5a885e4ff0af24939eb1fccca99428d83f83d17091264e717dfe4bd4c2e7ae

Download Submit
\??\PIPE\srvsvc

MD5
d41d8cd98f00b204e9800998ecf8427e

SHA1
da39a3ee5e6b4b0d3255bfef95601890afd80709

SHA256
e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

SHA512
cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

Download Submit
\Users\Admin\AppData\Roaming\XClient.exe

Filesize
504KB

MD5
dd81e5afcd1a13eee9f9a28c6cde2a56

SHA1
cf99a76fc406ffd81c62fbf07bd65c80eeae293f

SHA256
b399f5d239807fe144ad8872b4111002ebc6bb79ea6faa417db37f5ff95100ee

SHA512
b63633f877d4436bcd549a5bd79566d7d3eed7d3429ad44580b6f295caab9e44f562f45855cad6dff60ab5fbadc89c97289c31aac3b45e7f1df0476e610004be

Download Submit
memory/2128-19-0x0000000074480000-0x0000000074B6E000-memory.dmp

Filesize
6.9MB

Download
memory/2128-1-0x0000000000830000-0x00000000008B4000-memory.dmp

Filesize
528KB

Download
memory/2128-2-0x0000000074480000-0x0000000074B6E000-memory.dmp

Filesize
6.9MB

Download
memory/2128-3-0x00000000009D0000-0x00000000009E8000-memory.dmp

Filesize
96KB

Download
memory/2128-4-0x000000007448E000-0x000000007448F000-memory.dmp

Filesize
4KB

Download
memory/2128-5-0x0000000074480000-0x0000000074B6E000-memory.dmp

Filesize
6.9MB

Download
memory/2128-6-0x0000000004580000-0x00000000045DA000-memory.dmp

Filesize
360KB

Download
memory/2128-0-0x000000007448E000-0x000000007448F000-memory.dmp

Filesize
4KB

Download
memory/2644-17-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2644-9-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2644-8-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2644-10-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2644-18-0x0000000074480000-0x0000000074B6E000-memory.dmp

Filesize
6.9MB

Download
memory/2644-15-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2644-13-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2644-11-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2644-7-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2644-43-0x0000000074480000-0x0000000074B6E000-memory.dmp

Filesize
6.9MB

Download
memory/2644-44-0x0000000074480000-0x0000000074B6E000-memory.dmp

Filesize
6.9MB

Download
memory/2644-45-0x0000000074480000-0x0000000074B6E000-memory.dmp

Filesize
6.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads