xworm | ba7870c7dc4758619f3177530963242ac3f60377d6336f9de21cca95f70f77da

General

Target

XClient.exe
Size

82KB
MD5

5426b946b13d22a259acc2c54a2b29cc
SHA1

f30ff456b32744540aef13831a2eff8b06f73a21
SHA256

ba7870c7dc4758619f3177530963242ac3f60377d6336f9de21cca95f70f77da
SHA512

955c079e8b08f27e81720a2f790e340e2f05004463fe1fd00b1e2119246f0be03a5180919482b5fbd274f08905045b21e477978269e2b9a5229405274cbf3fd6
SSDEEP

1536:oBgdBvNP/F/ADakoMmZlRqEN2kBM3Dm9bVmeSUHf969PSOo0yOqicMGwn+M:51dUIzb/kDm9bVmsiKOXyricM1+M

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

C2

publication-glossary.gl.at.ply.gg:26117

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/5032-1-0x0000000000370000-0x000000000038A000-memory.dmp	family_xworm
behavioral2/files/0x000d000000023b68-58.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
4380	powershell.exe
3608	powershell.exe
2020	powershell.exe
4088	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-1-5-21-2045521122-590294423-3465680274-1000\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
3320	security
3276	security
2448	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-1-5-21-2045521122-590294423-3465680274-1000\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
1560	schtasks.exe

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
5032	XClient.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
3608	powershell.exe
3608	powershell.exe
2020	powershell.exe
2020	powershell.exe
4088	powershell.exe
4088	powershell.exe
4380	powershell.exe
4380	powershell.exe
5032	XClient.exe

Suspicious use of AdjustPrivilegeToken 9 IoCs

description	pid	Process
Token: SeDebugPrivilege	5032	XClient.exe
Token: SeDebugPrivilege	3608	powershell.exe
Token: SeDebugPrivilege	2020	powershell.exe
Token: SeDebugPrivilege	4088	powershell.exe
Token: SeDebugPrivilege	4380	powershell.exe
Token: SeDebugPrivilege	5032	XClient.exe
Token: SeDebugPrivilege	3320	security
Token: SeDebugPrivilege	3276	security
Token: SeDebugPrivilege	2448	security

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
5032	XClient.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 5032 wrote to memory of 3608	5032	XClient.exe	83
PID 5032 wrote to memory of 3608	5032	XClient.exe	83
PID 5032 wrote to memory of 2020	5032	XClient.exe	85
PID 5032 wrote to memory of 2020	5032	XClient.exe	85
PID 5032 wrote to memory of 4088	5032	XClient.exe	87
PID 5032 wrote to memory of 4088	5032	XClient.exe	87
PID 5032 wrote to memory of 4380	5032	XClient.exe	89
PID 5032 wrote to memory of 4380	5032	XClient.exe	89
PID 5032 wrote to memory of 1560	5032	XClient.exe	97
PID 5032 wrote to memory of 1560	5032	XClient.exe	97

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:5032
- 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:3608
- 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:2020
- 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:4088
- 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:4380
- 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:1560

C:\Users\Admin\AppData\Roaming\security
C:\Users\Admin\AppData\Roaming\security
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:3320

C:\Users\Admin\AppData\Roaming\security
C:\Users\Admin\AppData\Roaming\security
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:3276

C:\Users\Admin\AppData\Roaming\security
C:\Users\Admin\AppData\Roaming\security
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:2448

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
77d622bb1a5b250869a3238b9bc1402b

SHA1
d47f4003c2554b9dfc4c16f22460b331886b191b

SHA256
f97ff12a8abf4bf88bb6497bd2ac2da12628c8847a8ba5a9026bdbb76507cdfb

SHA512
d6789b5499f23c9035375a102271e17a8a82e57d6f5312fa24242e08a83efdeb8becb7622f55c4cf1b89c7d864b445df11f4d994cf7e2f87a900535bcca12fd9

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

Filesize
944B

MD5
a9451a6b9669d49bd90704dff21beb85

SHA1
5f93d2dec01a31e04fc90c28eb1c5ca62c6fff80

SHA256
b2ff191507379930b97a212f869c3774c20b274e8fc9fcc96da5c154fb0e3056

SHA512
06634cb578f6ce8d721e6306004082073fc224b91ceea37ef870df87b12b2d5f59e7d08b20b520787a1d13f3edbbb004197bf70f180f86dd7f401a5ad289ccb5

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_5kjmkepy.muk.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

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

Filesize
82KB

MD5
5426b946b13d22a259acc2c54a2b29cc

SHA1
f30ff456b32744540aef13831a2eff8b06f73a21

SHA256
ba7870c7dc4758619f3177530963242ac3f60377d6336f9de21cca95f70f77da

SHA512
955c079e8b08f27e81720a2f790e340e2f05004463fe1fd00b1e2119246f0be03a5180919482b5fbd274f08905045b21e477978269e2b9a5229405274cbf3fd6

Download Submit
memory/3608-12-0x00007FFB10F40000-0x00007FFB11A01000-memory.dmp

Filesize
10.8MB

Download
memory/3608-17-0x00007FFB10F40000-0x00007FFB11A01000-memory.dmp

Filesize
10.8MB

Download
memory/3608-14-0x00007FFB10F40000-0x00007FFB11A01000-memory.dmp

Filesize
10.8MB

Download
memory/3608-13-0x00007FFB10F40000-0x00007FFB11A01000-memory.dmp

Filesize
10.8MB

Download
memory/3608-2-0x00000156BB2A0000-0x00000156BB2C2000-memory.dmp

Filesize
136KB

Download
memory/5032-0-0x00007FFB10F43000-0x00007FFB10F45000-memory.dmp

Filesize
8KB

Download
memory/5032-55-0x00007FFB10F40000-0x00007FFB11A01000-memory.dmp

Filesize
10.8MB

Download
memory/5032-56-0x00007FFB10F43000-0x00007FFB10F45000-memory.dmp

Filesize
8KB

Download
memory/5032-57-0x00007FFB10F40000-0x00007FFB11A01000-memory.dmp

Filesize
10.8MB

Download
memory/5032-1-0x0000000000370000-0x000000000038A000-memory.dmp

Filesize
104KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads