xworm | 01f2610cebe0858ca4255858f1edc97b53b87ddb7bc910a45dc6903e0796c20e

General

Target

XClientxcosmic.exe
Size

77KB
MD5

6fdb431f83e09ad8d12a9a7efed4ce39
SHA1

6300aebef12d8133926c01fdbd278342ad8c07a2
SHA256

01f2610cebe0858ca4255858f1edc97b53b87ddb7bc910a45dc6903e0796c20e
SHA512

5c41d59f47297241dd063dbf6a32038ba2a554d0ebc53912f096fcfa6801c2a6849ad92ba84ec7f2dbf88793586f0cfa63920bbbba436aba114aa2148e8345e0
SSDEEP

1536:2lMbMe8RbYLXi+bbzNyVqp5AjO6qYd9+i8p1OcWTtNZeF:/mF+bb5y240OHtN0F

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

C2

195.88.218.113:6969

Attributes

Install_directory
%AppData%
install_file
Console Window Host.exe

Signatures

Detect Xworm Payload 2 IoCs

resource	yara_rule
behavioral2/memory/1124-1-0x0000000000DD0000-0x0000000000DEA000-memory.dmp	family_xworm
behavioral2/files/0x0012000000023a72-58.dat	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
2688	powershell.exe
4460	powershell.exe
3936	powershell.exe
1008	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-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation	XClientxcosmic.exe

Drops startup file 2 IoCs

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

Executes dropped EXE 3 IoCs

pid	Process
2104	Console Window Host.exe
4564	Console Window Host.exe
1500	Console Window Host.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-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Console Window Host = "C:\\Users\\Admin\\AppData\\Roaming\\Console Window Host.exe"	XClientxcosmic.exe

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

System Information Discovery
T1082

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
3908	schtasks.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
2688	powershell.exe
2688	powershell.exe
4460	powershell.exe
4460	powershell.exe
3936	powershell.exe
3936	powershell.exe
1008	powershell.exe
1008	powershell.exe
1124	XClientxcosmic.exe

Suspicious use of AdjustPrivilegeToken 9 IoCs

description	pid	Process
Token: SeDebugPrivilege	1124	XClientxcosmic.exe
Token: SeDebugPrivilege	2688	powershell.exe
Token: SeDebugPrivilege	4460	powershell.exe
Token: SeDebugPrivilege	3936	powershell.exe
Token: SeDebugPrivilege	1008	powershell.exe
Token: SeDebugPrivilege	1124	XClientxcosmic.exe
Token: SeDebugPrivilege	2104	Console Window Host.exe
Token: SeDebugPrivilege	4564	Console Window Host.exe
Token: SeDebugPrivilege	1500	Console Window Host.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1124	XClientxcosmic.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 1124 wrote to memory of 2688	1124	XClientxcosmic.exe	89
PID 1124 wrote to memory of 2688	1124	XClientxcosmic.exe	89
PID 1124 wrote to memory of 4460	1124	XClientxcosmic.exe	91
PID 1124 wrote to memory of 4460	1124	XClientxcosmic.exe	91
PID 1124 wrote to memory of 3936	1124	XClientxcosmic.exe	95
PID 1124 wrote to memory of 3936	1124	XClientxcosmic.exe	95
PID 1124 wrote to memory of 1008	1124	XClientxcosmic.exe	97
PID 1124 wrote to memory of 1008	1124	XClientxcosmic.exe	97
PID 1124 wrote to memory of 3908	1124	XClientxcosmic.exe	99
PID 1124 wrote to memory of 3908	1124	XClientxcosmic.exe	99

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\XClientxcosmic.exe
"C:\Users\Admin\AppData\Local\Temp\XClientxcosmic.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:1124
- 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\XClientxcosmic.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2688
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'XClientxcosmic.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4460
- 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\Console Window Host.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3936
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'Console Window Host.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1008
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "Console Window Host" /tr "C:\Users\Admin\AppData\Roaming\Console Window Host.exe"
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:3908

C:\Users\Admin\AppData\Roaming\Console Window Host.exe
"C:\Users\Admin\AppData\Roaming\Console Window Host.exe"
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:2104

C:\Users\Admin\AppData\Roaming\Console Window Host.exe
"C:\Users\Admin\AppData\Roaming\Console Window Host.exe"
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:4564

C:\Users\Admin\AppData\Roaming\Console Window Host.exe
"C:\Users\Admin\AppData\Roaming\Console Window Host.exe"
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:1500

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

Credential Access

Discovery

Query Registry

2

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\Console Window Host.exe.log

Filesize
654B

MD5
2ff39f6c7249774be85fd60a8f9a245e

SHA1
684ff36b31aedc1e587c8496c02722c6698c1c4e

SHA256
e1b91642d85d98124a6a31f710e137ab7fd90dec30e74a05ab7fcf3b7887dced

SHA512
1d7e8b92ef4afd463d62cfa7e8b9d1799db5bf2a263d3cd7840df2e0a1323d24eb595b5f8eb615c6cb15f9e3a7b4fc99f8dd6a3d34479222e966ec708998aed1

Download Submit
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
d28a889fd956d5cb3accfbaf1143eb6f

SHA1
157ba54b365341f8ff06707d996b3635da8446f7

SHA256
21e5d7ccf80a293e6ba30ed728846ca19c929c52b96e2c8d34e27cd2234f1d45

SHA512
0b6d88deb9be85722e6a78d5886d49f2caf407a59e128d2b4ed74c1356f9928c40048a62731959f2460e9ff9d9feee311043d2a37abe3bb92c2b76a44281478c

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

Filesize
944B

MD5
22310ad6749d8cc38284aa616efcd100

SHA1
440ef4a0a53bfa7c83fe84326a1dff4326dcb515

SHA256
55b1d8021c4eb4c3c0d75e3ed7a4eb30cd0123e3d69f32eeb596fe4ffec05abf

SHA512
2ef08e2ee15bb86695fe0c10533014ffed76ececc6e579d299d3365fafb7627f53e32e600bb6d872b9f58aca94f8cb7e1e94cdfd14777527f7f0aa019d9c6def

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

Filesize
944B

MD5
d8cb3e9459807e35f02130fad3f9860d

SHA1
5af7f32cb8a30e850892b15e9164030a041f4bd6

SHA256
2b139c74072ccbdaa17b950f32a6dbc934dfb7af9973d97c9b0d9c498012ba68

SHA512
045239ba31367fbdd59e883f74eafc05724e23bd6e8f0c1e7171ea2496a497eb9e0cfcb57285bb81c4d569daadba43d6ef64c626ca48f1e2a59e8d97f0cc9184

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_vw2dn12a.cu1.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Roaming\Console Window Host.exe

Filesize
77KB

MD5
6fdb431f83e09ad8d12a9a7efed4ce39

SHA1
6300aebef12d8133926c01fdbd278342ad8c07a2

SHA256
01f2610cebe0858ca4255858f1edc97b53b87ddb7bc910a45dc6903e0796c20e

SHA512
5c41d59f47297241dd063dbf6a32038ba2a554d0ebc53912f096fcfa6801c2a6849ad92ba84ec7f2dbf88793586f0cfa63920bbbba436aba114aa2148e8345e0

Download Submit
memory/1124-56-0x00007FFC0E970000-0x00007FFC0F431000-memory.dmp

Filesize
10.8MB

Download
memory/1124-0-0x00007FFC0E973000-0x00007FFC0E975000-memory.dmp

Filesize
8KB

Download
memory/1124-57-0x00007FFC0E973000-0x00007FFC0E975000-memory.dmp

Filesize
8KB

Download
memory/1124-61-0x00007FFC0E970000-0x00007FFC0F431000-memory.dmp

Filesize
10.8MB

Download
memory/1124-1-0x0000000000DD0000-0x0000000000DEA000-memory.dmp

Filesize
104KB

Download
memory/2688-17-0x00007FFC0E970000-0x00007FFC0F431000-memory.dmp

Filesize
10.8MB

Download
memory/2688-14-0x00007FFC0E970000-0x00007FFC0F431000-memory.dmp

Filesize
10.8MB

Download
memory/2688-13-0x00007FFC0E970000-0x00007FFC0F431000-memory.dmp

Filesize
10.8MB

Download
memory/2688-12-0x00007FFC0E970000-0x00007FFC0F431000-memory.dmp

Filesize
10.8MB

Download
memory/2688-7-0x000001E7DE430000-0x000001E7DE452000-memory.dmp

Filesize
136KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads