xworm | 480c3389177a32a663b3c484507f00a646a6b4a10c3532527bdc0dcd78c7d259

General

Target

Xeno.exe
Size

69KB
MD5

4e8074b05433894b629f67b4770d5474
SHA1

f71e57d6bda8a72a7760d358e63664136b8a7bb7
SHA256

480c3389177a32a663b3c484507f00a646a6b4a10c3532527bdc0dcd78c7d259
SHA512

de0726f1335c757925170f496181ee66b29231034c6ab205f54fc265370485bbf1eedfadaaba4b57fd78d6057860630ccd1bada035d71ae74b8f0a5349329e89
SSDEEP

1536:2SuDiZ0QURBoIKoPyS2I+bqpO1Xd7UEx6M0O8RLZ68i:2SuDaURKkPJt+bwwURO85M8i

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

C2

cause-indexes.gl.at.ply.gg:17210

Attributes

Install_directory
%AppData%
install_file
XClient.exe

Signatures

Detect Xworm Payload 1 IoCs

resource	yara_rule
behavioral2/memory/2868-1-0x0000000000CB0000-0x0000000000CC6000-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
3756	powershell.exe
4516	powershell.exe
4188	powershell.exe
4340	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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1479699283-3000499823-2337359760-1000\Control Panel\International\Geo\Nation	Xeno.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\XClient.lnk	Xeno.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\XClient.lnk	Xeno.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-1-5-21-1479699283-3000499823-2337359760-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\XClient = "C:\\Users\\Admin\\AppData\\Roaming\\XClient.exe"	Xeno.exe

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
4188	powershell.exe
4188	powershell.exe
4340	powershell.exe
4340	powershell.exe
3756	powershell.exe
3756	powershell.exe
4516	powershell.exe
4516	powershell.exe
2868	Xeno.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	2868	Xeno.exe
Token: SeDebugPrivilege	4188	powershell.exe
Token: SeDebugPrivilege	4340	powershell.exe
Token: SeDebugPrivilege	3756	powershell.exe
Token: SeDebugPrivilege	4516	powershell.exe
Token: SeDebugPrivilege	2868	Xeno.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2868	Xeno.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2868 wrote to memory of 4188	2868	Xeno.exe	88
PID 2868 wrote to memory of 4188	2868	Xeno.exe	88
PID 2868 wrote to memory of 4340	2868	Xeno.exe	92
PID 2868 wrote to memory of 4340	2868	Xeno.exe	92
PID 2868 wrote to memory of 3756	2868	Xeno.exe	94
PID 2868 wrote to memory of 3756	2868	Xeno.exe	94
PID 2868 wrote to memory of 4516	2868	Xeno.exe	96
PID 2868 wrote to memory of 4516	2868	Xeno.exe	96

C:\Users\Admin\AppData\Local\Temp\Xeno.exe
"C:\Users\Admin\AppData\Local\Temp\Xeno.exe"
1⤵
- Checks computer location settings
- Drops startup file
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2868
- 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\Local\Temp\Xeno.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4188
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'Xeno.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4340
- 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\XClient.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3756
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'XClient.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4516

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

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
77d622bb1a5b250869a3238b9bc1402b

SHA1
d47f4003c2554b9dfc4c16f22460b331886b191b

SHA256
f97ff12a8abf4bf88bb6497bd2ac2da12628c8847a8ba5a9026bdbb76507cdfb

SHA512
d6789b5499f23c9035375a102271e17a8a82e57d6f5312fa24242e08a83efdeb8becb7622f55c4cf1b89c7d864b445df11f4d994cf7e2f87a900535bcca12fd9

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

Filesize
944B

MD5
15dde0683cd1ca19785d7262f554ba93

SHA1
d039c577e438546d10ac64837b05da480d06bf69

SHA256
d6fa39eab7ee36f44dc3f9f2839d098433db95c1eba924e4bcf4e5c0d268d961

SHA512
57c0e1b87bc1c136f0d39f3ce64bb8f8274a0491e4ca6e45e5c7f9070aa9d9370c6f590ce37cd600b252df2638d870205249a514c43245ca7ed49017024a4672

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

Filesize
944B

MD5
a9293ef980c925abe33d940554ed8575

SHA1
9b6d85f2595f7fd4923f52b21ab7607279066969

SHA256
8313a191aa9d11cce868d95ac9a9b1609275bfe93131fcb6e547b985b0242fbe

SHA512
2003d90bb2bc89378ccaeb9c5edf76b2dfd93c80369d063e56141abb8d7fea6acee6a103874ab227bc1548437269c8e4ee5174bf482ecf3d66c38f3e0ba35d85

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_uwpbuqqz.d3y.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/2868-0-0x00007FF819FA3000-0x00007FF819FA5000-memory.dmp

Filesize
8KB

Download
memory/2868-1-0x0000000000CB0000-0x0000000000CC6000-memory.dmp

Filesize
88KB

Download
memory/2868-56-0x00007FF819FA0000-0x00007FF81AA61000-memory.dmp

Filesize
10.8MB

Download
memory/2868-57-0x00007FF819FA0000-0x00007FF81AA61000-memory.dmp

Filesize
10.8MB

Download
memory/2868-59-0x000000001B980000-0x000000001B98C000-memory.dmp

Filesize
48KB

Download
memory/2868-60-0x000000001BBD0000-0x000000001BBDC000-memory.dmp

Filesize
48KB

Download
memory/4188-13-0x00007FF819FA0000-0x00007FF81AA61000-memory.dmp

Filesize
10.8MB

Download
memory/4188-14-0x00007FF819FA0000-0x00007FF81AA61000-memory.dmp

Filesize
10.8MB

Download
memory/4188-17-0x00007FF819FA0000-0x00007FF81AA61000-memory.dmp

Filesize
10.8MB

Download
memory/4188-12-0x00007FF819FA0000-0x00007FF81AA61000-memory.dmp

Filesize
10.8MB

Download
memory/4188-2-0x000002A7A5240000-0x000002A7A5262000-memory.dmp

Filesize
136KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads