xworm | 9465f48edb12c0ecfe182d5d6a91be86afd52c152b61c3916efb09df3a90cb05

General

Target

ratka.exe
Size

80KB
MD5

39ffa7b287f2d822703a6deea560dcbd
SHA1

34ae6406ec73ad02955cb7676b37489fdab1695b
SHA256

9465f48edb12c0ecfe182d5d6a91be86afd52c152b61c3916efb09df3a90cb05
SHA512

7efa49f3c9ba846d6382e7683d64a5b00232c459028a177b07c0e4f28f06682bd3a219421a355515766007bee9e0dfcce5e243afba73290487057542a644cc40
SSDEEP

1536:GeKbbG1+cDVWr5hLbwWV5hcEW07Z4E+bCXsEN9qtgq6rLs4ORpmcG1h:GeKbb60r5hLbwWVcPk1+b8JY4ORpmth

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
behavioral1/memory/2972-1-0x0000000000D30000-0x0000000000D4A000-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
316	powershell.exe
2316	powershell.exe
2064	powershell.exe
2872	powershell.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\XClient.lnk	ratka.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\XClient.lnk	ratka.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-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Windows\CurrentVersion\Run\XClient = "C:\\Users\\Admin\\AppData\\Roaming\\XClient.exe"	ratka.exe

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
316	powershell.exe
2316	powershell.exe
2064	powershell.exe
2872	powershell.exe
2972	ratka.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	2972	ratka.exe
Token: SeDebugPrivilege	316	powershell.exe
Token: SeDebugPrivilege	2316	powershell.exe
Token: SeDebugPrivilege	2064	powershell.exe
Token: SeDebugPrivilege	2872	powershell.exe
Token: SeDebugPrivilege	2972	ratka.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2972	ratka.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2972 wrote to memory of 316	2972	ratka.exe	30
PID 2972 wrote to memory of 316	2972	ratka.exe	30
PID 2972 wrote to memory of 316	2972	ratka.exe	30
PID 2972 wrote to memory of 2316	2972	ratka.exe	32
PID 2972 wrote to memory of 2316	2972	ratka.exe	32
PID 2972 wrote to memory of 2316	2972	ratka.exe	32
PID 2972 wrote to memory of 2064	2972	ratka.exe	34
PID 2972 wrote to memory of 2064	2972	ratka.exe	34
PID 2972 wrote to memory of 2064	2972	ratka.exe	34
PID 2972 wrote to memory of 2872	2972	ratka.exe	36
PID 2972 wrote to memory of 2872	2972	ratka.exe	36
PID 2972 wrote to memory of 2872	2972	ratka.exe	36

C:\Users\Admin\AppData\Local\Temp\ratka.exe
"C:\Users\Admin\AppData\Local\Temp\ratka.exe"
1⤵
- 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:2972
- 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\ratka.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:316
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'ratka.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2316
- 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:2064
- 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:2872

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

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
7KB

MD5
b1a49f10be5074272cee72c9f3c3b8df

SHA1
2a9afa76e0ca8dfbc1c7d073c3823cc57a778568

SHA256
56dd947c9be14128a1d5d0ba16a8912e60cc380e7731a19650a3faa2dad840b3

SHA512
272d2ad54cd6e087419cc5f3fe6f8688cf215a627182acb18ae5058fa09c2e9f739d47bce3f5bc9b105ea0cc063a626e9ac5491221270684c6ca40e68142fe70

Download Submit
memory/316-6-0x0000000002AE0000-0x0000000002B60000-memory.dmp

Filesize
512KB

Download
memory/316-7-0x000000001B610000-0x000000001B8F2000-memory.dmp

Filesize
2.9MB

Download
memory/316-8-0x0000000001DA0000-0x0000000001DA8000-memory.dmp

Filesize
32KB

Download
memory/2316-15-0x00000000029F0000-0x00000000029F8000-memory.dmp

Filesize
32KB

Download
memory/2316-14-0x000000001B550000-0x000000001B832000-memory.dmp

Filesize
2.9MB

Download
memory/2972-0-0x000007FEF5EA3000-0x000007FEF5EA4000-memory.dmp

Filesize
4KB

Download
memory/2972-1-0x0000000000D30000-0x0000000000D4A000-memory.dmp

Filesize
104KB

Download
memory/2972-31-0x000000001B2F0000-0x000000001B370000-memory.dmp

Filesize
512KB

Download
memory/2972-32-0x000007FEF5EA3000-0x000007FEF5EA4000-memory.dmp

Filesize
4KB

Download
memory/2972-33-0x000000001B2F0000-0x000000001B370000-memory.dmp

Filesize
512KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads