xworm | b399f5d239807fe144ad8872b4111002ebc6bb79ea6faa417db37f5ff95100ee

Analysis

max time kernel
149s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
02-12-2024 21:10

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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

104.250.180.178:7061

Attributes

Install_directory
%AppData%
install_file
XClient.exe

Signatures

Detect Xworm Payload 1 IoCs

Processes:

resource	yara_rule
behavioral2/memory/4812-11-0x0000000000400000-0x0000000000414000-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
2632	powershell.exe
1924	powershell.exe
4444	powershell.exe
644	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

Processes:

THITWNSEI24112908089786756456545346568789-00010.scr.exe

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\Control Panel\International\Geo\Nation	THITWNSEI24112908089786756456545346568789-00010.scr.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

Suspicious use of SetThreadContext 1 IoCs

Processes:

THITWNSEI24112908089786756456545346568789-00010.scr.exe

description	pid	Process	procid_target
PID 4008 set thread context of 4812	4008	THITWNSEI24112908089786756456545346568789-00010.scr.exe	97

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:

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

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	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

Suspicious behavior: EnumeratesProcesses 13 IoCs

Processes:

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

pid	Process
4008	THITWNSEI24112908089786756456545346568789-00010.scr.exe
4008	THITWNSEI24112908089786756456545346568789-00010.scr.exe
4008	THITWNSEI24112908089786756456545346568789-00010.scr.exe
4008	THITWNSEI24112908089786756456545346568789-00010.scr.exe
2632	powershell.exe
2632	powershell.exe
1924	powershell.exe
1924	powershell.exe
4444	powershell.exe
4444	powershell.exe
644	powershell.exe
644	powershell.exe
4812	THITWNSEI24112908089786756456545346568789-00010.scr.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

Processes:

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

description	pid	Process
Token: SeDebugPrivilege	4008	THITWNSEI24112908089786756456545346568789-00010.scr.exe
Token: SeDebugPrivilege	4812	THITWNSEI24112908089786756456545346568789-00010.scr.exe
Token: SeDebugPrivilege	2632	powershell.exe
Token: SeDebugPrivilege	1924	powershell.exe
Token: SeDebugPrivilege	4444	powershell.exe
Token: SeDebugPrivilege	644	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

THITWNSEI24112908089786756456545346568789-00010.scr.exe

pid	Process
4812	THITWNSEI24112908089786756456545346568789-00010.scr.exe

Suspicious use of WriteProcessMemory 26 IoCs

Processes:

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

description	pid	Process	procid_target
PID 4008 wrote to memory of 4800	4008	THITWNSEI24112908089786756456545346568789-00010.scr.exe	95
PID 4008 wrote to memory of 4800	4008	THITWNSEI24112908089786756456545346568789-00010.scr.exe	95
PID 4008 wrote to memory of 4800	4008	THITWNSEI24112908089786756456545346568789-00010.scr.exe	95
PID 4008 wrote to memory of 3344	4008	THITWNSEI24112908089786756456545346568789-00010.scr.exe	96
PID 4008 wrote to memory of 3344	4008	THITWNSEI24112908089786756456545346568789-00010.scr.exe	96
PID 4008 wrote to memory of 3344	4008	THITWNSEI24112908089786756456545346568789-00010.scr.exe	96
PID 4008 wrote to memory of 4812	4008	THITWNSEI24112908089786756456545346568789-00010.scr.exe	97
PID 4008 wrote to memory of 4812	4008	THITWNSEI24112908089786756456545346568789-00010.scr.exe	97
PID 4008 wrote to memory of 4812	4008	THITWNSEI24112908089786756456545346568789-00010.scr.exe	97
PID 4008 wrote to memory of 4812	4008	THITWNSEI24112908089786756456545346568789-00010.scr.exe	97
PID 4008 wrote to memory of 4812	4008	THITWNSEI24112908089786756456545346568789-00010.scr.exe	97
PID 4008 wrote to memory of 4812	4008	THITWNSEI24112908089786756456545346568789-00010.scr.exe	97
PID 4008 wrote to memory of 4812	4008	THITWNSEI24112908089786756456545346568789-00010.scr.exe	97
PID 4008 wrote to memory of 4812	4008	THITWNSEI24112908089786756456545346568789-00010.scr.exe	97
PID 4812 wrote to memory of 2632	4812	THITWNSEI24112908089786756456545346568789-00010.scr.exe	98
PID 4812 wrote to memory of 2632	4812	THITWNSEI24112908089786756456545346568789-00010.scr.exe	98
PID 4812 wrote to memory of 2632	4812	THITWNSEI24112908089786756456545346568789-00010.scr.exe	98
PID 4812 wrote to memory of 1924	4812	THITWNSEI24112908089786756456545346568789-00010.scr.exe	100
PID 4812 wrote to memory of 1924	4812	THITWNSEI24112908089786756456545346568789-00010.scr.exe	100
PID 4812 wrote to memory of 1924	4812	THITWNSEI24112908089786756456545346568789-00010.scr.exe	100
PID 4812 wrote to memory of 4444	4812	THITWNSEI24112908089786756456545346568789-00010.scr.exe	104
PID 4812 wrote to memory of 4444	4812	THITWNSEI24112908089786756456545346568789-00010.scr.exe	104
PID 4812 wrote to memory of 4444	4812	THITWNSEI24112908089786756456545346568789-00010.scr.exe	104
PID 4812 wrote to memory of 644	4812	THITWNSEI24112908089786756456545346568789-00010.scr.exe	106
PID 4812 wrote to memory of 644	4812	THITWNSEI24112908089786756456545346568789-00010.scr.exe	106
PID 4812 wrote to memory of 644	4812	THITWNSEI24112908089786756456545346568789-00010.scr.exe	106

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 behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4008
- C:\Users\Admin\AppData\Local\Temp\THITWNSEI24112908089786756456545346568789-00010.scr.exe
  "C:\Users\Admin\AppData\Local\Temp\THITWNSEI24112908089786756456545346568789-00010.scr.exe"
  2⤵
  PID:4800
- C:\Users\Admin\AppData\Local\Temp\THITWNSEI24112908089786756456545346568789-00010.scr.exe
  "C:\Users\Admin\AppData\Local\Temp\THITWNSEI24112908089786756456545346568789-00010.scr.exe"
  2⤵
  PID:3344
- C:\Users\Admin\AppData\Local\Temp\THITWNSEI24112908089786756456545346568789-00010.scr.exe
  "C:\Users\Admin\AppData\Local\Temp\THITWNSEI24112908089786756456545346568789-00010.scr.exe"
  2⤵
  - Checks computer location settings
  - Drops startup file
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4812
- - 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:2632
- - 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:1924
- - 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:4444
- - 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:644

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\THITWNSEI24112908089786756456545346568789-00010.scr.exe.log

Filesize
1KB

MD5
8ec831f3e3a3f77e4a7b9cd32b48384c

SHA1
d83f09fd87c5bd86e045873c231c14836e76a05c

SHA256
7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

SHA512
26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log

Filesize
2KB

MD5
968cb9309758126772781b83adb8a28f

SHA1
8da30e71accf186b2ba11da1797cf67f8f78b47c

SHA256
92099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a

SHA512
4bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3

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

Filesize
18KB

MD5
ca246ab2b5212358807213f914a6bceb

SHA1
70bf09d52ffb8a16c9e8c2201a2aec8609a1bb34

SHA256
f30d6e192d3a6cabce2f89d8e0e07072ea431b7b5de6e22aa80ca55ac42d6dad

SHA512
f16c35cb3aed4a14c4cef335a4cf9dae42451d87db0622d0e3e1b6b21578ad42adb8e7daa756247464dadde577fed0311082d8bbbbee858e69e54c76a508e494

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

Filesize
18KB

MD5
caa8b8ae0f984f961dafef8151349055

SHA1
2c2e7624df19cc30d2991b8613fbf36432b3fabf

SHA256
8e9a72d9fe45704f8dca2b52fcf5419dd2713054701f01017e6b8cdcfdbd1fc7

SHA512
b90fbf5eb5244222b2ed0e9bc98b5cce723e9fc52f8262fd1a87bf22d18db0c9b5f89c12753fc0667e8a3e8240a333bcf895cce0add5406780efe7ec1f937cac

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

Filesize
18KB

MD5
74e19b9d9c8cfbfadae4e8045fd47d26

SHA1
778cf517e903d8ac4b15a662acafeeb5f15ed56e

SHA256
8a5cc8977b22bf96785d166816c72fa6e9925de0c5ec16d32d65162d3187e403

SHA512
23eaffb34ad6d15c187cf8a9096f81879e9b4e7651395e56262ced69fe525ea891ffd9b718762479d1b0a5307fc4036f978302e6915d2767d59b502dc0f68808

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_ulbssz4v.1aj.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/644-115-0x00000000706B0000-0x00000000706FC000-memory.dmp

Filesize
304KB

Download
memory/1924-73-0x00000000706B0000-0x00000000706FC000-memory.dmp

Filesize
304KB

Download
memory/2632-54-0x00000000076C0000-0x00000000076CE000-memory.dmp

Filesize
56KB

Download
memory/2632-47-0x0000000006760000-0x000000000677E000-memory.dmp

Filesize
120KB

Download
memory/2632-60-0x0000000075090000-0x0000000075840000-memory.dmp

Filesize
7.7MB

Download
memory/2632-57-0x00000000077B0000-0x00000000077B8000-memory.dmp

Filesize
32KB

Download
memory/2632-56-0x00000000077D0000-0x00000000077EA000-memory.dmp

Filesize
104KB

Download
memory/2632-55-0x00000000076D0000-0x00000000076E4000-memory.dmp

Filesize
80KB

Download
memory/2632-53-0x0000000007690000-0x00000000076A1000-memory.dmp

Filesize
68KB

Download
memory/2632-16-0x0000000004BB0000-0x0000000004BE6000-memory.dmp

Filesize
216KB

Download
memory/2632-17-0x0000000075090000-0x0000000075840000-memory.dmp

Filesize
7.7MB

Download
memory/2632-19-0x00000000052C0000-0x00000000058E8000-memory.dmp

Filesize
6.2MB

Download
memory/2632-18-0x0000000075090000-0x0000000075840000-memory.dmp

Filesize
7.7MB

Download
memory/2632-20-0x0000000075090000-0x0000000075840000-memory.dmp

Filesize
7.7MB

Download
memory/2632-21-0x0000000005180000-0x00000000051A2000-memory.dmp

Filesize
136KB

Download
memory/2632-23-0x00000000059F0000-0x0000000005A56000-memory.dmp

Filesize
408KB

Download
memory/2632-22-0x0000000005220000-0x0000000005286000-memory.dmp

Filesize
408KB

Download
memory/2632-52-0x0000000007710000-0x00000000077A6000-memory.dmp

Filesize
600KB

Download
memory/2632-33-0x0000000005AA0000-0x0000000005DF4000-memory.dmp

Filesize
3.3MB

Download
memory/2632-34-0x0000000006140000-0x000000000615E000-memory.dmp

Filesize
120KB

Download
memory/2632-35-0x0000000006190000-0x00000000061DC000-memory.dmp

Filesize
304KB

Download
memory/2632-36-0x0000000006720000-0x0000000006752000-memory.dmp

Filesize
200KB

Download
memory/2632-37-0x00000000706B0000-0x00000000706FC000-memory.dmp

Filesize
304KB

Download
memory/2632-51-0x0000000007500000-0x000000000750A000-memory.dmp

Filesize
40KB

Download
memory/2632-48-0x0000000007350000-0x00000000073F3000-memory.dmp

Filesize
652KB

Download
memory/2632-49-0x0000000007AD0000-0x000000000814A000-memory.dmp

Filesize
6.5MB

Download
memory/2632-50-0x0000000007490000-0x00000000074AA000-memory.dmp

Filesize
104KB

Download
memory/4008-3-0x0000000004B10000-0x0000000004BA2000-memory.dmp

Filesize
584KB

Download
memory/4008-15-0x0000000075090000-0x0000000075840000-memory.dmp

Filesize
7.7MB

Download
memory/4008-5-0x0000000004AC0000-0x0000000004ACA000-memory.dmp

Filesize
40KB

Download
memory/4008-6-0x0000000004DA0000-0x0000000004E3C000-memory.dmp

Filesize
624KB

Download
memory/4008-1-0x0000000000180000-0x0000000000204000-memory.dmp

Filesize
528KB

Download
memory/4008-8-0x000000007509E000-0x000000007509F000-memory.dmp

Filesize
4KB

Download
memory/4008-2-0x00000000050C0000-0x0000000005664000-memory.dmp

Filesize
5.6MB

Download
memory/4008-10-0x00000000062E0000-0x000000000633A000-memory.dmp

Filesize
360KB

Download
memory/4008-9-0x0000000075090000-0x0000000075840000-memory.dmp

Filesize
7.7MB

Download
memory/4008-7-0x0000000004E60000-0x0000000004E78000-memory.dmp

Filesize
96KB

Download
memory/4008-0-0x000000007509E000-0x000000007509F000-memory.dmp

Filesize
4KB

Download
memory/4008-4-0x0000000075090000-0x0000000075840000-memory.dmp

Filesize
7.7MB

Download
memory/4444-94-0x00000000706B0000-0x00000000706FC000-memory.dmp

Filesize
304KB

Download
memory/4812-131-0x0000000075090000-0x0000000075840000-memory.dmp

Filesize
7.7MB

Download
memory/4812-11-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4812-14-0x0000000075090000-0x0000000075840000-memory.dmp

Filesize
7.7MB

Download
memory/4812-130-0x0000000075090000-0x0000000075840000-memory.dmp

Filesize
7.7MB

Download
memory/4812-72-0x0000000075090000-0x0000000075840000-memory.dmp

Filesize
7.7MB

Download