xworm | 7a8fe7d881adece62bb6057d8306d8a0d417a810a81882149587958bbf39ff25

General

Target

7a8fe7d881adece62bb6057d8306d8a0d417a810a81882149587958bbf39ff25.exe
Size

63KB
MD5

754c64b6e93a932952e1d86b66213486
SHA1

f23268af58f8b4758e1a98619fa4640139c88e99
SHA256

7a8fe7d881adece62bb6057d8306d8a0d417a810a81882149587958bbf39ff25
SHA512

16417885aaf1a72b4c58d9bb3e5bc1b55692ac9ad0d963397ac27f53c982aaf9a07d1efce8ab37479b73157b8bbb678f94bfeff5b0fc27d3784e5cdd1704555f
SSDEEP

1536:jv0nbrF7oGDVxO13pmjLpgTC1Vsy9bAGS5bHIeS1Uc6WOTSXnTe:jvjCzO1UFky9bAGwjuyAOTKK

Score

10^/10

xworm execution rat trojan

Malware Config

Extracted

Family

xworm

C2

146.190.110.91:3389

Attributes

Install_directory
%AppData%
install_file
smartscreen.exe
telegram
https://api.telegram.org/bot8033290183:AAFGRm9tWSgOpPIATZ1BFGl9qpuLMlAya54/sendMessage?chat_id=8085766327

Signatures

Detect Xworm Payload 1 IoCs

resource	yara_rule
behavioral1/memory/540-1-0x00000000012F0000-0x0000000001306000-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
2060	powershell.exe
3024	powershell.exe
2796	powershell.exe
2988	powershell.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\smartscreen.lnk	7a8fe7d881adece62bb6057d8306d8a0d417a810a81882149587958bbf39ff25.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\smartscreen.lnk	7a8fe7d881adece62bb6057d8306d8a0d417a810a81882149587958bbf39ff25.exe

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

System Information Discovery
T1082

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
540	7a8fe7d881adece62bb6057d8306d8a0d417a810a81882149587958bbf39ff25.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
2060	powershell.exe
3024	powershell.exe
2796	powershell.exe
2988	powershell.exe
540	7a8fe7d881adece62bb6057d8306d8a0d417a810a81882149587958bbf39ff25.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeDebugPrivilege	540	7a8fe7d881adece62bb6057d8306d8a0d417a810a81882149587958bbf39ff25.exe
Token: SeDebugPrivilege	2060	powershell.exe
Token: SeDebugPrivilege	3024	powershell.exe
Token: SeDebugPrivilege	2796	powershell.exe
Token: SeDebugPrivilege	2988	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
540	7a8fe7d881adece62bb6057d8306d8a0d417a810a81882149587958bbf39ff25.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 540 wrote to memory of 2060	540	7a8fe7d881adece62bb6057d8306d8a0d417a810a81882149587958bbf39ff25.exe	31
PID 540 wrote to memory of 2060	540	7a8fe7d881adece62bb6057d8306d8a0d417a810a81882149587958bbf39ff25.exe	31
PID 540 wrote to memory of 2060	540	7a8fe7d881adece62bb6057d8306d8a0d417a810a81882149587958bbf39ff25.exe	31
PID 540 wrote to memory of 3024	540	7a8fe7d881adece62bb6057d8306d8a0d417a810a81882149587958bbf39ff25.exe	33
PID 540 wrote to memory of 3024	540	7a8fe7d881adece62bb6057d8306d8a0d417a810a81882149587958bbf39ff25.exe	33
PID 540 wrote to memory of 3024	540	7a8fe7d881adece62bb6057d8306d8a0d417a810a81882149587958bbf39ff25.exe	33
PID 540 wrote to memory of 2796	540	7a8fe7d881adece62bb6057d8306d8a0d417a810a81882149587958bbf39ff25.exe	35
PID 540 wrote to memory of 2796	540	7a8fe7d881adece62bb6057d8306d8a0d417a810a81882149587958bbf39ff25.exe	35
PID 540 wrote to memory of 2796	540	7a8fe7d881adece62bb6057d8306d8a0d417a810a81882149587958bbf39ff25.exe	35
PID 540 wrote to memory of 2988	540	7a8fe7d881adece62bb6057d8306d8a0d417a810a81882149587958bbf39ff25.exe	37
PID 540 wrote to memory of 2988	540	7a8fe7d881adece62bb6057d8306d8a0d417a810a81882149587958bbf39ff25.exe	37
PID 540 wrote to memory of 2988	540	7a8fe7d881adece62bb6057d8306d8a0d417a810a81882149587958bbf39ff25.exe	37

C:\Users\Admin\AppData\Local\Temp\7a8fe7d881adece62bb6057d8306d8a0d417a810a81882149587958bbf39ff25.exe
"C:\Users\Admin\AppData\Local\Temp\7a8fe7d881adece62bb6057d8306d8a0d417a810a81882149587958bbf39ff25.exe"
1⤵
- Drops startup file
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:540
- 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\7a8fe7d881adece62bb6057d8306d8a0d417a810a81882149587958bbf39ff25.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2060
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess '7a8fe7d881adece62bb6057d8306d8a0d417a810a81882149587958bbf39ff25.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3024
- 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\smartscreen.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2796
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'smartscreen.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2988

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

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

Filesize
7KB

MD5
f213568b0afd3a3a3ccb4a25491c9c93

SHA1
29e9ebcd728bfba2c80717274f847528630e91cb

SHA256
abcec55df439269c58860f247b31d3f49313e5feb44ecdeb1a7227a5c9a82a25

SHA512
e52b3032f7a3b193987817ee8cdc3ea3d9e8bbc260b7d583010ac42008a54eb26a8a6eac6803108e7b5a35b04f5f1fb2fb04c6cb15243c9c64bb2496ed711091

Download Submit
memory/540-0-0x000007FEF5623000-0x000007FEF5624000-memory.dmp

Filesize
4KB

Download
memory/540-1-0x00000000012F0000-0x0000000001306000-memory.dmp

Filesize
88KB

Download
memory/540-31-0x000000001B110000-0x000000001B190000-memory.dmp

Filesize
512KB

Download
memory/540-32-0x000007FEF5623000-0x000007FEF5624000-memory.dmp

Filesize
4KB

Download
memory/540-33-0x000000001B110000-0x000000001B190000-memory.dmp

Filesize
512KB

Download
memory/2060-6-0x0000000002AA0000-0x0000000002B20000-memory.dmp

Filesize
512KB

Download
memory/2060-7-0x000000001B490000-0x000000001B772000-memory.dmp

Filesize
2.9MB

Download
memory/2060-8-0x0000000001FF0000-0x0000000001FF8000-memory.dmp

Filesize
32KB

Download
memory/3024-15-0x0000000002A10000-0x0000000002A18000-memory.dmp

Filesize
32KB

Download
memory/3024-14-0x000000001B620000-0x000000001B902000-memory.dmp

Filesize
2.9MB

Download

Analysis

Sharing