xworm | ca93416a5406c488c52fdda404b872f0da81f9a8459f4d4ae4cebe6541d22e85

General

Target

ExperienceCheat.exe
Size

62.0MB
MD5

a2758f6c3f1a1d68731991792a711dd0
SHA1

e2ef709aaa1d88792d54b8cf05b9b3c3033b3409
SHA256

ca93416a5406c488c52fdda404b872f0da81f9a8459f4d4ae4cebe6541d22e85
SHA512

9fcd549b1dd8bced2b1f843272a8d923322a3ff4eef05d3bf8fb7a5cfd4328a36192c04eb1e6e16d799cefb461256cd8fdb772bbb251e94e44338c242d463103
SSDEEP

1536:YkeHtRfrimdNmkKZr311OGAiQj39IdcCqcAP69nQ:oHtRp6r311RAzj390VAP69Q

Score

10^/10

xworm execution rat trojan

Malware Config

Extracted

Family

xworm

C2

127.0.0.1:38492

warning-ms.gl.at.ply.gg:38492

Attributes

Install_directory
%AppData%
install_file
XClient.exe

Signatures

Detect Xworm Payload 2 IoCs

resource	yara_rule
behavioral1/files/0x00280000000450e2-25.dat	family_xworm
behavioral1/memory/1256-36-0x0000000000A30000-0x0000000000A4C000-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 1 IoCs

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

execution

PowerShell

T1059.001

pid	Process
3780	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-1-5-21-1361837696-2276465416-1936241636-1000\Control Panel\International\Geo\Nation	ExperienceCheat.exe

Executes dropped EXE 1 IoCs

pid	Process
1256	Nursultan.exe

Looks up external IP address via web service 1 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
20	ip-api.com

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3780	powershell.exe
3780	powershell.exe

Suspicious use of AdjustPrivilegeToken 23 IoCs

description	pid	Process
Token: SeDebugPrivilege	3780	powershell.exe
Token: SeIncreaseQuotaPrivilege	3780	powershell.exe
Token: SeSecurityPrivilege	3780	powershell.exe
Token: SeTakeOwnershipPrivilege	3780	powershell.exe
Token: SeLoadDriverPrivilege	3780	powershell.exe
Token: SeSystemProfilePrivilege	3780	powershell.exe
Token: SeSystemtimePrivilege	3780	powershell.exe
Token: SeProfSingleProcessPrivilege	3780	powershell.exe
Token: SeIncBasePriorityPrivilege	3780	powershell.exe
Token: SeCreatePagefilePrivilege	3780	powershell.exe
Token: SeBackupPrivilege	3780	powershell.exe
Token: SeRestorePrivilege	3780	powershell.exe
Token: SeShutdownPrivilege	3780	powershell.exe
Token: SeDebugPrivilege	3780	powershell.exe
Token: SeSystemEnvironmentPrivilege	3780	powershell.exe
Token: SeRemoteShutdownPrivilege	3780	powershell.exe
Token: SeUndockPrivilege	3780	powershell.exe
Token: SeManageVolumePrivilege	3780	powershell.exe
Token: 33	3780	powershell.exe
Token: 34	3780	powershell.exe
Token: 35	3780	powershell.exe
Token: 36	3780	powershell.exe
Token: SeDebugPrivilege	1256	Nursultan.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 4128 wrote to memory of 3780	4128	ExperienceCheat.exe	89
PID 4128 wrote to memory of 3780	4128	ExperienceCheat.exe	89
PID 4128 wrote to memory of 1256	4128	ExperienceCheat.exe	95
PID 4128 wrote to memory of 1256	4128	ExperienceCheat.exe	95

C:\Users\Admin\AppData\Local\Temp\ExperienceCheat.exe
"C:\Users\Admin\AppData\Local\Temp\ExperienceCheat.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4128
- 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\Nursultan.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3780
- C:\Users\Admin\AppData\Local\Temp\Nursultan.exe
  "C:\Users\Admin\AppData\Local\Temp\Nursultan.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:1256

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

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\Nursultan.exe

Filesize
87KB

MD5
38fc92faaaa97884e49674a2fb59dffa

SHA1
d2fdfcd6a426e4a0eb3dfc3b1c0d09ea0db945a2

SHA256
26d868f392303276bb62ce6771ec4bae63add8874e2621549d447490112ba992

SHA512
b8d4a64a9e02e96848d9285b3a6e7986cf4c54a520f75354008815790d7001361b3e570d9ff1c2d5e747ee1943b6bee791012120b536b06edb534aa76c445777

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_43xphhft.ntb.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/1256-36-0x0000000000A30000-0x0000000000A4C000-memory.dmp

Filesize
112KB

Download
memory/3780-14-0x00007FFA4E540000-0x00007FFA4F002000-memory.dmp

Filesize
10.8MB

Download
memory/3780-12-0x00007FFA4E540000-0x00007FFA4F002000-memory.dmp

Filesize
10.8MB

Download
memory/3780-13-0x00007FFA4E540000-0x00007FFA4F002000-memory.dmp

Filesize
10.8MB

Download
memory/3780-15-0x00007FFA4E540000-0x00007FFA4F002000-memory.dmp

Filesize
10.8MB

Download
memory/3780-16-0x00007FFA4E540000-0x00007FFA4F002000-memory.dmp

Filesize
10.8MB

Download
memory/3780-19-0x00007FFA4E540000-0x00007FFA4F002000-memory.dmp

Filesize
10.8MB

Download
memory/3780-2-0x00000273FC0E0000-0x00000273FC102000-memory.dmp

Filesize
136KB

Download
memory/4128-0-0x00007FFA4E543000-0x00007FFA4E545000-memory.dmp

Filesize
8KB

Download
memory/4128-20-0x00007FFA4E543000-0x00007FFA4E545000-memory.dmp

Filesize
8KB

Download
memory/4128-32-0x00007FFA4E540000-0x00007FFA4F002000-memory.dmp

Filesize
10.8MB

Download
memory/4128-1-0x0000000000390000-0x00000000003A4000-memory.dmp

Filesize
80KB

Download
memory/4128-38-0x00007FFA4E540000-0x00007FFA4F002000-memory.dmp

Filesize
10.8MB

Download

Analysis

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