xworm | ea5c93dc24d9407736ffb3beda385f0f42eb682f6a654f9891c09f754560a973

General

Target

ea5c93dc24d9407736ffb3beda385f0f42eb682f6a654f9891c09f754560a973.exe
Size

78KB
MD5

a8cc2daff88948c5943b0f929ec9486c
SHA1

7ccc506bc46d2887a5d4ded2df5caaac4a6f0203
SHA256

ea5c93dc24d9407736ffb3beda385f0f42eb682f6a654f9891c09f754560a973
SHA512

a965155303de05a89954ebdb53a2a7cee7adc5de0bab55cdb1bda179a321ea93121d932acf7dc87a77cda64962bc8a445da59933492cc945b38c0e7d118802ba
SSDEEP

1536:J6KAswl3j+aQRiS2/rmmnx/7MZubpd9zQDACmqGn0LX790kCX+dgp:J6OD6jzxjPLxUACS0LtCFp

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

C2

server2025.dns.army:7771

Attributes

Install_directory
%AppData%
install_file
system32.exe

Signatures

Detect Xworm Payload 4 IoCs

resource	yara_rule
behavioral1/files/0x00080000000120f9-6.dat	family_xworm
behavioral1/memory/2436-7-0x0000000001350000-0x0000000001366000-memory.dmp	family_xworm
behavioral1/memory/1552-42-0x0000000000A20000-0x0000000000A36000-memory.dmp	family_xworm
behavioral1/memory/1480-45-0x0000000000390000-0x00000000003A6000-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
1272	powershell.exe
2296	powershell.exe
2632	powershell.exe
2592	powershell.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\system32.lnk	XClient.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\system32.lnk	XClient.exe

Executes dropped EXE 3 IoCs

pid	Process
2436	XClient.exe
1552	system32.exe
1480	system32.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-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Windows\CurrentVersion\Run\system32 = "C:\\Users\\Admin\\AppData\\Roaming\\system32.exe"	XClient.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
3052	schtasks.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
1272	powershell.exe
2296	powershell.exe
2632	powershell.exe
2592	powershell.exe
2436	XClient.exe

Suspicious use of AdjustPrivilegeToken 8 IoCs

description	pid	Process
Token: SeDebugPrivilege	2436	XClient.exe
Token: SeDebugPrivilege	1272	powershell.exe
Token: SeDebugPrivilege	2296	powershell.exe
Token: SeDebugPrivilege	2632	powershell.exe
Token: SeDebugPrivilege	2592	powershell.exe
Token: SeDebugPrivilege	2436	XClient.exe
Token: SeDebugPrivilege	1552	system32.exe
Token: SeDebugPrivilege	1480	system32.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2436	XClient.exe

Suspicious use of WriteProcessMemory 24 IoCs

description	pid	Process	procid_target
PID 2148 wrote to memory of 2436	2148	ea5c93dc24d9407736ffb3beda385f0f42eb682f6a654f9891c09f754560a973.exe	30
PID 2148 wrote to memory of 2436	2148	ea5c93dc24d9407736ffb3beda385f0f42eb682f6a654f9891c09f754560a973.exe	30
PID 2148 wrote to memory of 2436	2148	ea5c93dc24d9407736ffb3beda385f0f42eb682f6a654f9891c09f754560a973.exe	30
PID 2436 wrote to memory of 1272	2436	XClient.exe	32
PID 2436 wrote to memory of 1272	2436	XClient.exe	32
PID 2436 wrote to memory of 1272	2436	XClient.exe	32
PID 2436 wrote to memory of 2296	2436	XClient.exe	34
PID 2436 wrote to memory of 2296	2436	XClient.exe	34
PID 2436 wrote to memory of 2296	2436	XClient.exe	34
PID 2436 wrote to memory of 2632	2436	XClient.exe	36
PID 2436 wrote to memory of 2632	2436	XClient.exe	36
PID 2436 wrote to memory of 2632	2436	XClient.exe	36
PID 2436 wrote to memory of 2592	2436	XClient.exe	38
PID 2436 wrote to memory of 2592	2436	XClient.exe	38
PID 2436 wrote to memory of 2592	2436	XClient.exe	38
PID 2436 wrote to memory of 3052	2436	XClient.exe	40
PID 2436 wrote to memory of 3052	2436	XClient.exe	40
PID 2436 wrote to memory of 3052	2436	XClient.exe	40
PID 1820 wrote to memory of 1552	1820	taskeng.exe	43
PID 1820 wrote to memory of 1552	1820	taskeng.exe	43
PID 1820 wrote to memory of 1552	1820	taskeng.exe	43
PID 1820 wrote to memory of 1480	1820	taskeng.exe	44
PID 1820 wrote to memory of 1480	1820	taskeng.exe	44
PID 1820 wrote to memory of 1480	1820	taskeng.exe	44

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\ea5c93dc24d9407736ffb3beda385f0f42eb682f6a654f9891c09f754560a973.exe
"C:\Users\Admin\AppData\Local\Temp\ea5c93dc24d9407736ffb3beda385f0f42eb682f6a654f9891c09f754560a973.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2148
- C:\ProgramData\XClient.exe
  "C:\ProgramData\XClient.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2436
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\ProgramData\XClient.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1272
- - C:\Windows\System32\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
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2296
- - 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\system32.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2632
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'system32.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2592
- - C:\Windows\System32\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "system32" /tr "C:\Users\Admin\AppData\Roaming\system32.exe"
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:3052

C:\Windows\system32\taskeng.exe
taskeng.exe {418BCF64-D0EE-474E-9242-777949B4BF0E} S-1-5-21-4177215427-74451935-3209572229-1000:JSMURNPT\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:1820
- C:\Users\Admin\AppData\Roaming\system32.exe
  C:\Users\Admin\AppData\Roaming\system32.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:1552
- C:\Users\Admin\AppData\Roaming\system32.exe
  C:\Users\Admin\AppData\Roaming\system32.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:1480

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

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\ProgramData\XClient.exe

Filesize
64KB

MD5
6051e7b1e1e0a0746578ce805e218e3a

SHA1
7b815829c4464768bcf47334a247a7362ef3ef00

SHA256
f70ca1002bf997015a80bf1d62eda0bcb1c9888eb6c868a040a164d3889ad585

SHA512
0edd7da3011de54f9f2771a5c940064afa41429717dfffe67213b1847970d012e72a421e555bcef08d62d10b2a7c6e31b3ed6954205c4dc966c35d4a82765b99

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\590aee7bdd69b59b.customDestinations-ms

Filesize
7KB

MD5
5b62f848c35e49d0a423b39307d2eab2

SHA1
27cc8d312ced14895d4c444241e733f5c36f80b2

SHA256
7ace9912c0de544828d029411f4c148112f62c162bbac6b4ed9493ed6cf6b085

SHA512
96d7ecd2d6d2e8aa4f65afb7244d92cedf5b09c20b92367df4aef9832403b8de6d93fe94eab09e9807a34887959b5eb070d7eadc3133cdd5f143ad3bb4d751fa

Download Submit
memory/1272-13-0x000000001B760000-0x000000001BA42000-memory.dmp

Filesize
2.9MB

Download
memory/1272-14-0x0000000002920000-0x0000000002928000-memory.dmp

Filesize
32KB

Download
memory/1480-45-0x0000000000390000-0x00000000003A6000-memory.dmp

Filesize
88KB

Download
memory/1552-42-0x0000000000A20000-0x0000000000A36000-memory.dmp

Filesize
88KB

Download
memory/2148-0-0x000007FEF55B3000-0x000007FEF55B4000-memory.dmp

Filesize
4KB

Download
memory/2148-1-0x0000000000ED0000-0x0000000000EEA000-memory.dmp

Filesize
104KB

Download
memory/2296-20-0x000000001B800000-0x000000001BAE2000-memory.dmp

Filesize
2.9MB

Download
memory/2296-21-0x0000000001E10000-0x0000000001E18000-memory.dmp

Filesize
32KB

Download
memory/2436-36-0x000007FEF55B0000-0x000007FEF5F9C000-memory.dmp

Filesize
9.9MB

Download
memory/2436-37-0x000007FEF55B0000-0x000007FEF5F9C000-memory.dmp

Filesize
9.9MB

Download
memory/2436-38-0x000007FEF55B0000-0x000007FEF5F9C000-memory.dmp

Filesize
9.9MB

Download
memory/2436-8-0x000007FEF55B0000-0x000007FEF5F9C000-memory.dmp

Filesize
9.9MB

Download
memory/2436-7-0x0000000001350000-0x0000000001366000-memory.dmp

Filesize
88KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads