xworm | e667b46eeae63c0bfe3b4afdf674f88a3fede9b69fd01fae3ccb298841ae052a

General

Target

XClient.exe
Size

36KB
MD5

cae4f0fe50b987b855a556fb34778f8f
SHA1

bb51d9895c5a0ac8f87d0ab4ff5dce7c4bf0e332
SHA256

e667b46eeae63c0bfe3b4afdf674f88a3fede9b69fd01fae3ccb298841ae052a
SHA512

6a34663d6c9b557f596b7ca4b0ed828b55ca519405ffacabfe827fc003272c991ca3539d5ee14fe5f8dd3e58a8df026547afd8380a5c8cf300012c67a37faf1a
SSDEEP

768:veVXtHcDQZS9LR50UZmx/F89R36OOMhm7QJR:v8dH+t51OF89R36OOMc78

Score

10^/10

xworm execution rat trojan

Malware Config

Extracted

Family

xworm

Version

5.0

C2

database-victoria.gl.at.ply.gg:55358

Mutex

D3IBrkox4lu2QKJO

Attributes

install_file
USB.exe

aes.plain

Signatures

Detect Xworm Payload 1 IoCs

resource	yara_rule
behavioral2/memory/1880-1-0x00000000007C0000-0x00000000007D0000-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 2 IoCs

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

execution

PowerShell

T1059.001

pid	Process
4156	powershell.exe
2184	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-1-5-21-250031470-1197856012-2659781506-1000\Control Panel\International\Geo\Nation	XClient.exe

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
4156	powershell.exe
4156	powershell.exe
2184	powershell.exe
2184	powershell.exe
2184	powershell.exe
1880	XClient.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	1880	XClient.exe
Token: SeDebugPrivilege	4156	powershell.exe
Token: SeDebugPrivilege	2184	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1880	XClient.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1880 wrote to memory of 4156	1880	XClient.exe	88
PID 1880 wrote to memory of 4156	1880	XClient.exe	88
PID 1880 wrote to memory of 2184	1880	XClient.exe	92
PID 1880 wrote to memory of 2184	1880	XClient.exe	92

C:\Users\Admin\AppData\Local\Temp\XClient.exe
"C:\Users\Admin\AppData\Local\Temp\XClient.exe"
1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1880
- 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\XClient.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4156
- 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:2184

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log

Filesize
2KB

MD5
d85ba6ff808d9e5444a4b369f5bc2730

SHA1
31aa9d96590fff6981b315e0b391b575e4c0804a

SHA256
84739c608a73509419748e4e20e6cc4e1846056c3fe1929a8300d5a1a488202f

SHA512
8c414eb55b45212af385accc16d9d562adba2123583ce70d22b91161fe878683845512a78f04dedd4ea98ed9b174dbfa98cf696370598ad8e6fbd1e714f1f249

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
944B

MD5
6d3e9c29fe44e90aae6ed30ccf799ca8

SHA1
c7974ef72264bbdf13a2793ccf1aed11bc565dce

SHA256
2360634e63e8f0b5748e2c56ebb8f4aa78e71008ea7b5c9ca1c49be03b49557d

SHA512
60c38c4367352537545d859f64b9c5cbada94240478d1d039fd27b5ecba4dc1c90051557c16d802269703b873546ead416279c0a80c6fd5e49ad361cef22596a

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_f2rgxyht.at2.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/1880-0-0x00007FF980173000-0x00007FF980175000-memory.dmp

Filesize
8KB

Download
memory/1880-1-0x00000000007C0000-0x00000000007D0000-memory.dmp

Filesize
64KB

Download
memory/1880-30-0x00007FF980170000-0x00007FF980C31000-memory.dmp

Filesize
10.8MB

Download
memory/1880-31-0x00007FF980170000-0x00007FF980C31000-memory.dmp

Filesize
10.8MB

Download
memory/4156-7-0x0000027725D30000-0x0000027725D52000-memory.dmp

Filesize
136KB

Download
memory/4156-12-0x00007FF980170000-0x00007FF980C31000-memory.dmp

Filesize
10.8MB

Download
memory/4156-13-0x00007FF980170000-0x00007FF980C31000-memory.dmp

Filesize
10.8MB

Download
memory/4156-14-0x00007FF980170000-0x00007FF980C31000-memory.dmp

Filesize
10.8MB

Download
memory/4156-17-0x00007FF980170000-0x00007FF980C31000-memory.dmp

Filesize
10.8MB

Download

Analysis

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