xworm | 412621eea530f0835ff50ff44c174b55d45fd36400319b054788920535b7d586

General

Target

test.exe
Size

59KB
MD5

0989805ebfa10a6112b1e19846182c95
SHA1

9c101d98d26c6d5e2374e4d8baab393631d358d8
SHA256

412621eea530f0835ff50ff44c174b55d45fd36400319b054788920535b7d586
SHA512

c96cbc20c5bf93cac574fa6795bc413f7a8e0becab5343bf824819ab9443ae41fd05ec5976ba89888b97aef5e95df561b7f1e57d2251ebb9dfcd5348e044d602
SSDEEP

1536:2nF3FOqPlMQvp7eq6IzbhY1iv2n+u65n18ZCOmTzg5:2nFxPqG7YIzby1B+118IOmTU5

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

Version

3.1

C2

Jameson1312313-53869.portmap.host:53869:8848

Attributes

Install_directory
%AppData%
install_file
fortnite.exe

Signatures

Detect Xworm Payload 1 IoCs

resource	yara_rule
behavioral1/memory/2656-1-0x0000000000970000-0x0000000000986000-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 3 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
2804	powershell.exe
2840	powershell.exe
2576	powershell.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\test.lnk	test.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\test.lnk	test.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-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Windows\CurrentVersion\Run\test = "C:\\Users\\Admin\\AppData\\Roaming\\test.exe"	test.exe

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2804	powershell.exe
2840	powershell.exe
2576	powershell.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeDebugPrivilege	2656	test.exe
Token: SeDebugPrivilege	2804	powershell.exe
Token: SeDebugPrivilege	2840	powershell.exe
Token: SeDebugPrivilege	2576	powershell.exe
Token: SeDebugPrivilege	2656	test.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 2656 wrote to memory of 2804	2656	test.exe	31
PID 2656 wrote to memory of 2804	2656	test.exe	31
PID 2656 wrote to memory of 2804	2656	test.exe	31
PID 2656 wrote to memory of 2840	2656	test.exe	33
PID 2656 wrote to memory of 2840	2656	test.exe	33
PID 2656 wrote to memory of 2840	2656	test.exe	33
PID 2656 wrote to memory of 2576	2656	test.exe	35
PID 2656 wrote to memory of 2576	2656	test.exe	35
PID 2656 wrote to memory of 2576	2656	test.exe	35

C:\Users\Admin\AppData\Local\Temp\test.exe
"C:\Users\Admin\AppData\Local\Temp\test.exe"
1⤵
- Drops startup file
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2656
- 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\test.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2804
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'test.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2840
- 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\test.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2576

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
f9549ab6b6bdb8cd2cf315e2a29202b5

SHA1
45511b8833b6f0332283a7ac259183ab24407343

SHA256
bff93d15bf2687a20e4368518451332e90d82304c1374afad485148682024c87

SHA512
b4667f4b4e59624c842f6a53fea100242b200eb1103c552dbaada6d77dec245822050b5543ca43d1cc90fe29121b8c8b3c61467b9fdd22458d7b761aaaefa6ee

Download Submit
memory/2656-0-0x000007FEF5F03000-0x000007FEF5F04000-memory.dmp

Filesize
4KB

Download
memory/2656-1-0x0000000000970000-0x0000000000986000-memory.dmp

Filesize
88KB

Download
memory/2656-27-0x000000001B1A0000-0x000000001B220000-memory.dmp

Filesize
512KB

Download
memory/2656-28-0x000007FEF5F03000-0x000007FEF5F04000-memory.dmp

Filesize
4KB

Download
memory/2656-29-0x000000001B1A0000-0x000000001B220000-memory.dmp

Filesize
512KB

Download
memory/2804-6-0x0000000002700000-0x0000000002780000-memory.dmp

Filesize
512KB

Download
memory/2804-7-0x000000001B740000-0x000000001BA22000-memory.dmp

Filesize
2.9MB

Download
memory/2804-8-0x0000000001F70000-0x0000000001F78000-memory.dmp

Filesize
32KB

Download
memory/2840-14-0x000000001B670000-0x000000001B952000-memory.dmp

Filesize
2.9MB

Download
memory/2840-15-0x0000000002250000-0x0000000002258000-memory.dmp

Filesize
32KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads