xworm | 7a3d86182ae45a6be17ef36d1f12463b398c165a7e6fe4aa80e56ceab7f036eb

General

Target

ExcellentFree.exe
Size

76KB
MD5

8cc568f48114422b0ca792dc8ce6009a
SHA1

bbe67dabd894ac2e45dc8027c6e3000f73ec97d7
SHA256

7a3d86182ae45a6be17ef36d1f12463b398c165a7e6fe4aa80e56ceab7f036eb
SHA512

45fe66a17c0473c0a4967d501d6f28f7a41fdce03ec31c46fb11ffd5fd848493578effbc36b4247ae49b987c41c3a559a9185dfdd0fd42468f30c310bea7bcc4
SSDEEP

1536:p1TUp7kYt63AuSN5z5UJrh+bILdScPA6BiHGOwKZRWX2emk:1YY32Uf+bmMe7OHZRvemk

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

C2

cameras-happen.gl.at.ply.gg:23386

Attributes

Install_directory
%AppData%
install_file
XClient.exe

Signatures

Detect Xworm Payload 1 IoCs

resource	yara_rule
behavioral2/memory/2796-1-0x0000000000AA0000-0x0000000000ABA000-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 4 IoCs

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

execution

PowerShell

T1059.001

pid	Process
2472	powershell.exe
5100	powershell.exe
2896	powershell.exe
1740	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-1-5-21-2593460650-190333679-3676257533-1000\Control Panel\International\Geo\Nation	ExcellentFree.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\XClient.lnk	ExcellentFree.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\XClient.lnk	ExcellentFree.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-1-5-21-2593460650-190333679-3676257533-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\XClient = "C:\\Users\\Admin\\AppData\\Roaming\\XClient.exe"	ExcellentFree.exe

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
2472	powershell.exe
2472	powershell.exe
5100	powershell.exe
5100	powershell.exe
2896	powershell.exe
2896	powershell.exe
1740	powershell.exe
1740	powershell.exe
2796	ExcellentFree.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	2796	ExcellentFree.exe
Token: SeDebugPrivilege	2472	powershell.exe
Token: SeDebugPrivilege	5100	powershell.exe
Token: SeDebugPrivilege	2896	powershell.exe
Token: SeDebugPrivilege	1740	powershell.exe
Token: SeDebugPrivilege	2796	ExcellentFree.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2796	ExcellentFree.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2796 wrote to memory of 2472	2796	ExcellentFree.exe	96
PID 2796 wrote to memory of 2472	2796	ExcellentFree.exe	96
PID 2796 wrote to memory of 5100	2796	ExcellentFree.exe	98
PID 2796 wrote to memory of 5100	2796	ExcellentFree.exe	98
PID 2796 wrote to memory of 2896	2796	ExcellentFree.exe	100
PID 2796 wrote to memory of 2896	2796	ExcellentFree.exe	100
PID 2796 wrote to memory of 1740	2796	ExcellentFree.exe	102
PID 2796 wrote to memory of 1740	2796	ExcellentFree.exe	102

C:\Users\Admin\AppData\Local\Temp\ExcellentFree.exe
"C:\Users\Admin\AppData\Local\Temp\ExcellentFree.exe"
1⤵
- Checks computer location settings
- Drops startup file
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2796
- 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\ExcellentFree.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2472
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'ExcellentFree.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:5100
- 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\XClient.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2896
- 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:1740

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

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

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
6d42b6da621e8df5674e26b799c8e2aa

SHA1
ab3ce1327ea1eeedb987ec823d5e0cb146bafa48

SHA256
5ab6a1726f425c6d0158f55eb8d81754ddedd51e651aa0a899a29b7a58619c4c

SHA512
53faffbda8a835bc1143e894c118c15901a5fd09cfc2224dd2f754c06dc794897315049a579b9a8382d4564f071576045aaaf824019b7139d939152dca38ce29

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

Filesize
944B

MD5
04f1d68afbed6b13399edfae1e9b1472

SHA1
8bfdcb687a995e4a63a8c32df2c66dc89f91a8b0

SHA256
f358f33a42122e97c489fad7bbc8beab2eb42d42e4ec7fce0dd61fe6d8c0b8de

SHA512
30c5e72a8134992094d937d2588f7a503b1d6407d11afe0265b7c8b0ce14071925e5caed13fc4f9c28705df4c7aed3601f81b007048b148af274d7784aa5fb75

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_eg3avaf1.xzx.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/2472-12-0x00007FF935530000-0x00007FF935FF1000-memory.dmp

Filesize
10.8MB

Download
memory/2472-13-0x00007FF935530000-0x00007FF935FF1000-memory.dmp

Filesize
10.8MB

Download
memory/2472-14-0x00007FF935530000-0x00007FF935FF1000-memory.dmp

Filesize
10.8MB

Download
memory/2472-17-0x00007FF935530000-0x00007FF935FF1000-memory.dmp

Filesize
10.8MB

Download
memory/2472-7-0x0000022C4BA40000-0x0000022C4BA62000-memory.dmp

Filesize
136KB

Download
memory/2796-0-0x00007FF935533000-0x00007FF935535000-memory.dmp

Filesize
8KB

Download
memory/2796-1-0x0000000000AA0000-0x0000000000ABA000-memory.dmp

Filesize
104KB

Download
memory/2796-56-0x00007FF935530000-0x00007FF935FF1000-memory.dmp

Filesize
10.8MB

Download
memory/2796-57-0x00007FF935530000-0x00007FF935FF1000-memory.dmp

Filesize
10.8MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads