xworm | 2c0a67858a564a9f8e31bee30a7f3fff197abab45c86a76258b5dff361f782d5

General

Target

BEta.exe
Size

71KB
MD5

4e04e4b330468d08c1ced57a9d4237d3
SHA1

ea29e0c159454cac9295d3a13208ef5ad3c68e20
SHA256

2c0a67858a564a9f8e31bee30a7f3fff197abab45c86a76258b5dff361f782d5
SHA512

eed94bace96ca2667e6cb77369d49159f1250f104b6efef4eebf0818fe2c3ee60ac34c11709ac4680e32408aa9d3ef0f72336d10ad082d03d661ba563d2b32c8
SSDEEP

1536:djgqQWeBS2EyNTGwN+bxPkcL/ADB6YO1hXMUEsp:OEyNT+bRkvD3O1ZMU/p

Score

10^/10

xworm execution rat trojan

Malware Config

Extracted

Family

xworm

C2

l-drive.gl.at.ply.gg:37755

Attributes

Install_directory
%AppData%
install_file
XClient.exe

Signatures

Detect Xworm Payload 1 IoCs

resource	yara_rule
behavioral1/memory/912-1-0x00000000007A0000-0x00000000007B8000-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
3656	powershell.exe
3068	powershell.exe
3156	powershell.exe
4272	powershell.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\XClient.lnk	BEta.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\XClient.lnk	BEta.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
3156	powershell.exe
3156	powershell.exe
4272	powershell.exe
4272	powershell.exe
3656	powershell.exe
3656	powershell.exe
3068	powershell.exe
3068	powershell.exe
912	BEta.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	912	BEta.exe
Token: SeDebugPrivilege	3156	powershell.exe
Token: SeDebugPrivilege	4272	powershell.exe
Token: SeDebugPrivilege	3656	powershell.exe
Token: SeDebugPrivilege	3068	powershell.exe
Token: SeDebugPrivilege	912	BEta.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
912	BEta.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 912 wrote to memory of 3156	912	BEta.exe	77
PID 912 wrote to memory of 3156	912	BEta.exe	77
PID 912 wrote to memory of 4272	912	BEta.exe	79
PID 912 wrote to memory of 4272	912	BEta.exe	79
PID 912 wrote to memory of 3656	912	BEta.exe	81
PID 912 wrote to memory of 3656	912	BEta.exe	81
PID 912 wrote to memory of 3068	912	BEta.exe	83
PID 912 wrote to memory of 3068	912	BEta.exe	83

C:\Users\Admin\AppData\Local\Temp\BEta.exe
"C:\Users\Admin\AppData\Local\Temp\BEta.exe"
1⤵
- Drops startup file
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:912
- 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\BEta.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3156
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'BEta.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4272
- 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:3656
- 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:3068

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

System Information Discovery

1

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
437395ef86850fbff98c12dff89eb621

SHA1
9cec41e230fa9839de1e5c42b7dbc8b31df0d69c

SHA256
9c39f3e1ee674a289926fddddfc5549740c488686ec6513f53848a225c192ba6

SHA512
bc669893f5c97e80a62fc3d15383ed7c62ffc86bc986401735903019bb96a5f13e4d0f6356baa2021267503a4eb62681e58e28fcff435350e83aa425fa76cd64

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

Filesize
944B

MD5
25fdee90fce7b0b96dc2ee97ec66834a

SHA1
c32a6f1e3b1033bec69a5a41de255c98944dcdc9

SHA256
c433a9b0345ba06be0b2acc2fcb9d689f81837ada86b6fee2fb2b4b838d1ea6c

SHA512
b76230cb1cee4dc3e434bc49b239525f4ea51f449b0587b828a8888c6ff54d26c5cd16219934dbe44d4f84057d8e77bbc458d71e55b10d79ef8d0eda74e7399d

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

Filesize
944B

MD5
5b705b4839f481b2485f2195c589cad0

SHA1
a55866cd9e6fedf352d0e937101755ea61a50c86

SHA256
f6a3b94a63de605bbbcf1e95cb2d743166f44ea7e9d0d2bfa0e88c94c26e37c6

SHA512
f228eccd5646068a81e79baeaf7e8bfa470b30d503bf0ca8cc746c009510ab609b5c091cadf08fab1e3581900cdb7834c775c61a95a29c2d73ccd0dcbd851bab

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

Filesize
944B

MD5
9030854a24cf37b7b4e3650aac67d427

SHA1
27f3e35705bbe6388da04bf97e09da1875a6bc71

SHA256
e818d49edbec3553b77c8a400c04fc88b601614946c281fc9c86acf9498010e0

SHA512
f402098f60d99d7e7130095c6965bb540454ff9867e72a9c2efaf833967639b802f193f9e73af53829167b43a2d9100e19f9056621f75543fa2aadad1e185dfd

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_4r343rdb.3bv.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/912-52-0x00007FFCAE870000-0x00007FFCAF332000-memory.dmp

Filesize
10.8MB

Download
memory/912-1-0x00000000007A0000-0x00000000007B8000-memory.dmp

Filesize
96KB

Download
memory/912-0-0x00007FFCAE873000-0x00007FFCAE875000-memory.dmp

Filesize
8KB

Download
memory/912-53-0x00007FFCAE873000-0x00007FFCAE875000-memory.dmp

Filesize
8KB

Download
memory/912-54-0x00007FFCAE870000-0x00007FFCAF332000-memory.dmp

Filesize
10.8MB

Download
memory/912-55-0x000000001B440000-0x000000001B44C000-memory.dmp

Filesize
48KB

Download
memory/3156-13-0x00007FFCAE870000-0x00007FFCAF332000-memory.dmp

Filesize
10.8MB

Download
memory/3156-16-0x00007FFCAE870000-0x00007FFCAF332000-memory.dmp

Filesize
10.8MB

Download
memory/3156-12-0x00007FFCAE870000-0x00007FFCAF332000-memory.dmp

Filesize
10.8MB

Download
memory/3156-11-0x00007FFCAE870000-0x00007FFCAF332000-memory.dmp

Filesize
10.8MB

Download
memory/3156-10-0x000001C6C42D0000-0x000001C6C42F2000-memory.dmp

Filesize
136KB

Download

Analysis

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