xworm | f20df849f7284d15b7915badc28f7afaad9e1a768279ced17db67796f2f883fd

Resubmissions

01-07-2024 16:09

240701-tl9n3ascnn 10

01-07-2024 00:42

240701-a2hqqstgjn 10

Analysis

max time kernel
46s
max time network
51s
platform
windows11-21h2_x64
resource
win11-20240419-en
resource tags

arch:x64arch:x86image:win11-20240419-enlocale:en-usos:windows11-21h2-x64system
submitted
01-07-2024 16:09

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General

Target

RobloxExecutor.exe
Size

316KB
MD5

f0c864fee64edd613b413ddb7c559446
SHA1

87e75a58eef9f3765a2eed498f6aca135b1ef7c4
SHA256

f20df849f7284d15b7915badc28f7afaad9e1a768279ced17db67796f2f883fd
SHA512

9c8e90d0a04740ed6e36d886bb13bb9df3b963236eaca0b2fd0db6bfce1d4052761d689d77dcf66c7c07df53295751f0ff8907a8f426ccc4391b365b282bd154
SSDEEP

3072:0n2Af+SLiJO+Y7mR9USl6yOiGB3PSQQivLXdn+mvo+vuChrZtwkYZBwOepe4PUe1:1E+yclwQKjdn+WPtYVJIoBfTVRsjbQ2p

Score

10^/10

xworm execution rat trojan

Malware Config

Extracted

Family

xworm

Version

5.0

allows-welfare.gl.at.ply.gg:49180

Mutex

B2qPpHuLCfcwYFiL

Attributes

Install_directory
%AppData%
install_file
System.exe

aes.plain

Signatures

Detect Xworm Payload 2 IoCs

Processes:

resource yara_rule

C:\Users\Admin\AppData\Local\Temp\RarSFX0\Systemdefault.exe family_xworm
behavioral4/memory/3180-11-0x00000000005F0000-0x0000000000600000-memory.dmp family_xworm
Xworm
Xworm is a remote access trojan written in C#.
trojan rat 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

Processes:

powershell.exepowershell.exepowershell.exepowershell.exe

pid process

4172 powershell.exe
4616 powershell.exe
1360 powershell.exe
2080 powershell.exe

resource	yara_rule
C:\Users\Admin\AppData\Local\Temp\RarSFX0\Systemdefault.exe	family_xworm
behavioral4/memory/3180-11-0x00000000005F0000-0x0000000000600000-memory.dmp	family_xworm

pid	process
4172	powershell.exe
4616	powershell.exe
1360	powershell.exe
2080	powershell.exe

Drops startup file 2 IoCs

Processes:

Systemdefault.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\System.lnk	Systemdefault.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\System.lnk	Systemdefault.exe

Executes dropped EXE 2 IoCs

Processes:

Systemdefault.exeLOLPOOP.exe

pid process

3180 Systemdefault.exe
3020 LOLPOOP.exe
Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.

Processes:

flow ioc

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

System Information Discovery
T1082
Suspicious behavior: EnumeratesProcesses 9 IoCs

Processes:

powershell.exepowershell.exepowershell.exepowershell.exeSystemdefault.exe

pid process

4172 powershell.exe
4172 powershell.exe
4616 powershell.exe
4616 powershell.exe
1360 powershell.exe
1360 powershell.exe
2080 powershell.exe
2080 powershell.exe
3180 Systemdefault.exe

pid	process
3180	Systemdefault.exe
3020	LOLPOOP.exe

flow	ioc
1	ip-api.com

pid	process
4172	powershell.exe
4172	powershell.exe
4616	powershell.exe
4616	powershell.exe
1360	powershell.exe
1360	powershell.exe
2080	powershell.exe
2080	powershell.exe
3180	Systemdefault.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

Processes:

Systemdefault.exepowershell.exepowershell.exepowershell.exepowershell.exe

description	pid	process
Token: SeDebugPrivilege	3180	Systemdefault.exe
Token: SeDebugPrivilege	4172	powershell.exe
Token: SeDebugPrivilege	4616	powershell.exe
Token: SeDebugPrivilege	1360	powershell.exe
Token: SeDebugPrivilege	2080	powershell.exe
Token: SeDebugPrivilege	3180	Systemdefault.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

Systemdefault.exe

pid process

3180 Systemdefault.exe

pid	process
3180	Systemdefault.exe

Suspicious use of WriteProcessMemory 16 IoCs

Processes:

RobloxExecutor.execmd.exeSystemdefault.exe

description	pid	process	target process
PID 4800 wrote to memory of 2108	4800	RobloxExecutor.exe	cmd.exe
PID 4800 wrote to memory of 2108	4800	RobloxExecutor.exe	cmd.exe
PID 4800 wrote to memory of 2108	4800	RobloxExecutor.exe	cmd.exe
PID 2108 wrote to memory of 3180	2108	cmd.exe	Systemdefault.exe
PID 2108 wrote to memory of 3180	2108	cmd.exe	Systemdefault.exe
PID 2108 wrote to memory of 3020	2108	cmd.exe	LOLPOOP.exe
PID 2108 wrote to memory of 3020	2108	cmd.exe	LOLPOOP.exe
PID 2108 wrote to memory of 3020	2108	cmd.exe	LOLPOOP.exe
PID 3180 wrote to memory of 4172	3180	Systemdefault.exe	powershell.exe
PID 3180 wrote to memory of 4172	3180	Systemdefault.exe	powershell.exe
PID 3180 wrote to memory of 4616	3180	Systemdefault.exe	powershell.exe
PID 3180 wrote to memory of 4616	3180	Systemdefault.exe	powershell.exe
PID 3180 wrote to memory of 1360	3180	Systemdefault.exe	powershell.exe
PID 3180 wrote to memory of 1360	3180	Systemdefault.exe	powershell.exe
PID 3180 wrote to memory of 2080	3180	Systemdefault.exe	powershell.exe
PID 3180 wrote to memory of 2080	3180	Systemdefault.exe	powershell.exe

C:\Users\Admin\AppData\Local\Temp\RobloxExecutor.exe
"C:\Users\Admin\AppData\Local\Temp\RobloxExecutor.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:4800

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c start "" "Systemdefault.exe" & start "" "LOLPOOP.exe"
2⤵
- Suspicious use of WriteProcessMemory
PID:2108

C:\Users\Admin\AppData\Local\Temp\RarSFX0\Systemdefault.exe
"Systemdefault.exe"
3⤵
- Drops startup file
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3180

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\RarSFX0\Systemdefault.exe'
4⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4172

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'Systemdefault.exe'
4⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4616

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\System.exe'
4⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1360

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'System.exe'
4⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2080

C:\Users\Admin\AppData\Local\Temp\RarSFX0\LOLPOOP.exe
"LOLPOOP.exe"
3⤵
- Executes dropped EXE
PID:3020

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log
Filesize
2KB

MD5
627073ee3ca9676911bee35548eff2b8

SHA1
4c4b68c65e2cab9864b51167d710aa29ebdcff2e

SHA256
85b280a39fc31ba1e15fb06102a05b8405ff3b82feb181d4170f04e466dd647c

SHA512
3c5f6c03e253b83c57e8d6f0334187dbdcdf4fa549eecd36cbc1322dca6d3ca891dc6a019c49ec2eafb88f82d0434299c31e4dfaab123acb42e0546218f311fb

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
Filesize
944B

MD5
1a9fa92a4f2e2ec9e244d43a6a4f8fb9

SHA1
9910190edfaccece1dfcc1d92e357772f5dae8f7

SHA256
0ee052d5333fd5fd86bc84856fec98e045f077a7ac8051651bf7c521b9706888

SHA512
5d2361476fa22200e6f83883efe7dcb8c3fe7dae8d56e04e28a36e9ae1270c327b6aa161d92b239593da7661289d002c574446ecfd6bd19928209aae25e3ef64

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
Filesize
944B

MD5
cb9070f7a07a5d3fc17121852bff6953

SHA1
1932f99c2039a98cf0d65bca0f882dde0686fc11

SHA256
6c908b4ca5b098e166b48a0e821050db43fba7299a6553be2303bee5b89545ac

SHA512
97b9fc5ce40b102e2c9334500f6c17625c982ff8e4afaaabd92c2468cd8deface01d7cdfd267c4f10aac123b7a6173fde85d2b531c6f134a3896a8ca5edfe1f8

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
Filesize
944B

MD5
cef328ddb1ee8916e7a658919323edd8

SHA1
a676234d426917535e174f85eabe4ef8b88256a5

SHA256
a1b5b7ada8ebc910f20f91ada3991d3321104e9da598c958b1edac9f9aca0e90

SHA512
747400c20ca5b5fd1b54bc24e75e6a78f15af61df263be932d2ee7b2f34731c2de8ce03b2706954fb098c1ac36f0b761cf37e418738fa91f2a8ea78572f545cb

Download Submit
C:\Users\Admin\AppData\Local\Temp\RarSFX0\LOLPOOP.exe
Filesize
9KB

MD5
c9bd5672882c79b5f7977fc3c37dc9b6

SHA1
90cfa0e99aacd42bd2561cdb218fd618f0ed4b9f

SHA256
c6594102d290245d0830cead7f7e3cacf79db881358f001373fcca0d625d0998

SHA512
5586496c54c7c33c3e3f1cd6c4e0117b8e34d42846f55aadf22314144e1e27691e8c7fef924386cd5ae01a958d7437ab1a0b6c709ca06f25f6deab82f6171038

Download Submit
C:\Users\Admin\AppData\Local\Temp\RarSFX0\Systemdefault.exe
Filesize
40KB

MD5
2b7216f79728eb5ff4b5553737685a99

SHA1
d7f4f41f03485eb76326c75ec2ae0fe53282ebd0

SHA256
5a40bff3109b83243b53bf7439dc5e66e29c923363c02d49fa93614c19ce36f5

SHA512
b9f4c8e9b5b46785806eb498028e85d2515d743a518c0ecfd9269e8f4cb2351da0bcd9a6bc0e74eabc33e8dd2374bee46566b188d5f4ee49ba3384ece7a54982

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_pfkl25c4.ras.ps1
Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/3020-13-0x0000000000410000-0x0000000000418000-memory.dmp

Filesize
32KB

Download
memory/3020-12-0x00000000733DE000-0x00000000733DF000-memory.dmp

Filesize
4KB

Download
memory/3020-17-0x00000000733D0000-0x0000000073B81000-memory.dmp

Filesize
7.7MB

Download
memory/3020-70-0x00000000733D0000-0x0000000073B81000-memory.dmp

Filesize
7.7MB

Download
memory/3020-15-0x0000000004EC0000-0x0000000004F52000-memory.dmp

Filesize
584KB

Download
memory/3020-67-0x00000000733D0000-0x0000000073B81000-memory.dmp

Filesize
7.7MB

Download
memory/3020-14-0x00000000053B0000-0x0000000005956000-memory.dmp

Filesize
5.6MB

Download
memory/3020-16-0x0000000005060000-0x000000000506A000-memory.dmp

Filesize
40KB

Download
memory/3020-66-0x00000000733DE000-0x00000000733DF000-memory.dmp

Filesize
4KB

Download
memory/3180-9-0x00007FFE6B1F3000-0x00007FFE6B1F5000-memory.dmp

Filesize
8KB

Download
memory/3180-65-0x00007FFE6B1F3000-0x00007FFE6B1F5000-memory.dmp

Filesize
8KB

Download
memory/3180-11-0x00000000005F0000-0x0000000000600000-memory.dmp

Filesize
64KB

Download
memory/3180-68-0x000000001B1C0000-0x000000001B1D0000-memory.dmp

Filesize
64KB

Download
memory/3180-18-0x000000001B1C0000-0x000000001B1D0000-memory.dmp

Filesize
64KB

Download
memory/4172-27-0x000001F0795A0000-0x000001F0795C2000-memory.dmp

Filesize
136KB

Download