Malware Analysis Report

2024-09-11 13:53

Sample ID 240615-msj9es1elj
Target LabyMod4Crt.exe
SHA256 ca6becc3a5e5b7fa151258c05c4b3a36bbfd470d347f8da494472988b4f7bb71
Tags
xworm execution rat trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK Matrix

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

ca6becc3a5e5b7fa151258c05c4b3a36bbfd470d347f8da494472988b4f7bb71

Threat Level: Known bad

The file LabyMod4Crt.exe was found to be: Known bad.

Malicious Activity Summary

xworm execution rat trojan

Xworm

Detect Xworm Payload

Xworm family

Command and Scripting Interpreter: PowerShell

Drops startup file

Checks computer location settings

Loads dropped DLL

Looks up external IP address via web service

Enumerates physical storage devices

Unsigned PE

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK Matrix V13

Initial Access
TA0001
Execution
TA0002
Command and Scripting Interpreter
T1059
PowerShell
T1059.001
Persistence
TA0003
Privilege Escalation
TA0004
Defense Evasion
TA0005
Credential Access
TA0006
Discovery
TA0007
Query Registry
T1012
System Information Discovery
T1082
Lateral Movement
TA0008
Collection
TA0009
Exfiltration
TA0010
Command and Control
TA0011
Impact
TA0040
Resource Development
TA0042
Reconnaissance
TA0043

Analysis: static1

Detonation Overview

Reported

2024-06-15 10:43

Signatures

Detect Xworm Payload

Description Indicator Process Target
N/A N/A N/A N/A

Xworm family

xworm

Unsigned PE

Description Indicator Process Target
N/A N/A N/A N/A

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-15 10:43

Reported

2024-06-15 10:46

Platform

win10v2004-20240508-en

Max time kernel

147s

Max time network

152s

Command Line

"C:\Users\Admin\AppData\Local\Temp\LabyMod4Crt.exe"

Signatures

Detect Xworm Payload

Description Indicator Process Target
N/A N/A N/A N/A

Xworm

trojan rat xworm

Command and Scripting Interpreter: PowerShell

execution
Description Indicator Process Target
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-3558294865-3673844354-2255444939-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\LabyMod4Crt.exe N/A

Drops startup file

Description Indicator Process Target
File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\XClient.lnk C:\Users\Admin\AppData\Local\Temp\LabyMod4Crt.exe N/A
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\XClient.lnk C:\Users\Admin\AppData\Local\Temp\LabyMod4Crt.exe N/A

Looks up external IP address via web service

Description Indicator Process Target
N/A ip-api.com N/A N/A

Enumerates physical storage devices

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\LabyMod4Crt.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\LabyMod4Crt.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2184 wrote to memory of 4756 N/A C:\Users\Admin\AppData\Local\Temp\LabyMod4Crt.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 2184 wrote to memory of 4756 N/A C:\Users\Admin\AppData\Local\Temp\LabyMod4Crt.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 2184 wrote to memory of 1992 N/A C:\Users\Admin\AppData\Local\Temp\LabyMod4Crt.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 2184 wrote to memory of 1992 N/A C:\Users\Admin\AppData\Local\Temp\LabyMod4Crt.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 2184 wrote to memory of 4888 N/A C:\Users\Admin\AppData\Local\Temp\LabyMod4Crt.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 2184 wrote to memory of 4888 N/A C:\Users\Admin\AppData\Local\Temp\LabyMod4Crt.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 2184 wrote to memory of 3272 N/A C:\Users\Admin\AppData\Local\Temp\LabyMod4Crt.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 2184 wrote to memory of 3272 N/A C:\Users\Admin\AppData\Local\Temp\LabyMod4Crt.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe

Processes

C:\Users\Admin\AppData\Local\Temp\LabyMod4Crt.exe

"C:\Users\Admin\AppData\Local\Temp\LabyMod4Crt.exe"

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\LabyMod4Crt.exe'

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe

"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'LabyMod4Crt.exe'

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'

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe

"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'XClient.exe'

Network

Country Destination Domain Proto
US 8.8.8.8:53 ip-api.com udp
N/A 127.0.0.1:23386 tcp
N/A 127.0.0.1:23386 tcp
N/A 127.0.0.1:23386 tcp
N/A 127.0.0.1:23386 tcp
N/A 127.0.0.1:23386 tcp
N/A 127.0.0.1:23386 tcp
N/A 127.0.0.1:23386 tcp
N/A 127.0.0.1:23386 tcp
N/A 127.0.0.1:23386 tcp
US 8.8.8.8:53 cameras-happen.gl.at.ply.gg udp
N/A 127.0.0.1:23386 tcp
US 8.8.8.8:53 cameras-happen.gl.at.ply.gg udp

Files

memory/2184-0-0x00007FFB98E13000-0x00007FFB98E15000-memory.dmp

memory/2184-1-0x0000000000930000-0x0000000000946000-memory.dmp

memory/2184-2-0x00007FFB98E10000-0x00007FFB998D1000-memory.dmp

memory/4756-4-0x00007FFB98E10000-0x00007FFB998D1000-memory.dmp

memory/4756-3-0x000001D5DAA50000-0x000001D5DAA72000-memory.dmp

memory/4756-14-0x00007FFB98E10000-0x00007FFB998D1000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_nkbxnguh.klk.ps1

MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

memory/4756-15-0x00007FFB98E10000-0x00007FFB998D1000-memory.dmp

memory/4756-16-0x00007FFB98E10000-0x00007FFB998D1000-memory.dmp

memory/4756-19-0x00007FFB98E10000-0x00007FFB998D1000-memory.dmp

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

MD5 d85ba6ff808d9e5444a4b369f5bc2730
SHA1 31aa9d96590fff6981b315e0b391b575e4c0804a
SHA256 84739c608a73509419748e4e20e6cc4e1846056c3fe1929a8300d5a1a488202f
SHA512 8c414eb55b45212af385accc16d9d562adba2123583ce70d22b91161fe878683845512a78f04dedd4ea98ed9b174dbfa98cf696370598ad8e6fbd1e714f1f249

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

MD5 d28a889fd956d5cb3accfbaf1143eb6f
SHA1 157ba54b365341f8ff06707d996b3635da8446f7
SHA256 21e5d7ccf80a293e6ba30ed728846ca19c929c52b96e2c8d34e27cd2234f1d45
SHA512 0b6d88deb9be85722e6a78d5886d49f2caf407a59e128d2b4ed74c1356f9928c40048a62731959f2460e9ff9d9feee311043d2a37abe3bb92c2b76a44281478c

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

MD5 3b444d3f0ddea49d84cc7b3972abe0e6
SHA1 0a896b3808e68d5d72c2655621f43b0b2c65ae02
SHA256 ab075b491d20c6f66c7bd40b57538c1cfdaab5aac4715bfe3bbc7f4745860a74
SHA512 eb0ab5d68472ec42de4c9b6d84306d7bca3874be1d0ac572030a070f21a698432418068e1a6006ff88480be8c8f54c769dee74b2def403f734109dba7261f36b

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

MD5 fd98baf5a9c30d41317663898985593b
SHA1 ea300b99f723d2429d75a6c40e0838bf60f17aad
SHA256 9d97a5bbc88fdcceac25f293383f7e5ce242675460ffbfb2ee9090870c034e96
SHA512 bf4dbbd671b5d7afb326622a7c781f150860294d3dba7160330046c258c84a15981c70e50d84dc7faaa7cc8b8c90bf8df818b3f2d3806a8a3671dfe5e38fe7b0

memory/2184-54-0x00007FFB98E10000-0x00007FFB998D1000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-15 10:43

Reported

2024-06-15 10:46

Platform

win7-20240611-en

Max time kernel

120s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\LabyMod4Crt.exe"

Signatures

Detect Xworm Payload

Description Indicator Process Target
N/A N/A N/A N/A

Xworm

trojan rat xworm

Command and Scripting Interpreter: PowerShell

execution
Description Indicator Process Target
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A

Drops startup file

Description Indicator Process Target
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\XClient.lnk C:\Users\Admin\AppData\Local\Temp\LabyMod4Crt.exe N/A
File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\XClient.lnk C:\Users\Admin\AppData\Local\Temp\LabyMod4Crt.exe N/A

Loads dropped DLL

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\LabyMod4Crt.exe N/A

Looks up external IP address via web service

Description Indicator Process Target
N/A ip-api.com N/A N/A

Enumerates physical storage devices

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\LabyMod4Crt.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\LabyMod4Crt.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1752 wrote to memory of 2476 N/A C:\Users\Admin\AppData\Local\Temp\LabyMod4Crt.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 1752 wrote to memory of 2476 N/A C:\Users\Admin\AppData\Local\Temp\LabyMod4Crt.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 1752 wrote to memory of 2476 N/A C:\Users\Admin\AppData\Local\Temp\LabyMod4Crt.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 1752 wrote to memory of 2644 N/A C:\Users\Admin\AppData\Local\Temp\LabyMod4Crt.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 1752 wrote to memory of 2644 N/A C:\Users\Admin\AppData\Local\Temp\LabyMod4Crt.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 1752 wrote to memory of 2644 N/A C:\Users\Admin\AppData\Local\Temp\LabyMod4Crt.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 1752 wrote to memory of 2928 N/A C:\Users\Admin\AppData\Local\Temp\LabyMod4Crt.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 1752 wrote to memory of 2928 N/A C:\Users\Admin\AppData\Local\Temp\LabyMod4Crt.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 1752 wrote to memory of 2928 N/A C:\Users\Admin\AppData\Local\Temp\LabyMod4Crt.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 1752 wrote to memory of 2520 N/A C:\Users\Admin\AppData\Local\Temp\LabyMod4Crt.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 1752 wrote to memory of 2520 N/A C:\Users\Admin\AppData\Local\Temp\LabyMod4Crt.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 1752 wrote to memory of 2520 N/A C:\Users\Admin\AppData\Local\Temp\LabyMod4Crt.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe

Processes

C:\Users\Admin\AppData\Local\Temp\LabyMod4Crt.exe

"C:\Users\Admin\AppData\Local\Temp\LabyMod4Crt.exe"

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\LabyMod4Crt.exe'

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe

"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'LabyMod4Crt.exe'

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'

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe

"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'XClient.exe'

Network

Country Destination Domain Proto
US 8.8.8.8:53 ip-api.com udp
US 208.95.112.1:80 ip-api.com tcp
US 8.8.8.8:53 cameras-happen.gl.at.ply.gg udp
US 147.185.221.20:23386 cameras-happen.gl.at.ply.gg tcp
US 147.185.221.20:23386 cameras-happen.gl.at.ply.gg tcp
US 147.185.221.20:23386 cameras-happen.gl.at.ply.gg tcp

Files

memory/1752-0-0x000007FEF5E43000-0x000007FEF5E44000-memory.dmp

memory/1752-1-0x0000000000C90000-0x0000000000CA6000-memory.dmp

memory/1752-2-0x000007FEF5E40000-0x000007FEF682C000-memory.dmp

memory/2476-7-0x000000001B680000-0x000000001B962000-memory.dmp

memory/2476-8-0x00000000022C0000-0x00000000022C8000-memory.dmp

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\590aee7bdd69b59b.customDestinations-ms

MD5 f82eb1a87c16c6e92ee3c5d414293683
SHA1 7776795d435dd142d8a21e5dac6787a98e7131c2
SHA256 ceeb716275fbc7ef7068b7e166a1792627b977478cae21ed5d5bc69d45925b35
SHA512 654b6bf372213afe42fc1f782b82fd781a358be6570f3c85274cc930bd7cd9f907b518eb5c29af56309a74d0c4f78d6b33f89e5e0ed86d95314c55ade4f0b763

memory/2644-14-0x000000001B600000-0x000000001B8E2000-memory.dmp

memory/2644-15-0x0000000002240000-0x0000000002248000-memory.dmp

memory/1752-30-0x000007FEF5E43000-0x000007FEF5E44000-memory.dmp

memory/1752-31-0x0000000000BC0000-0x0000000000BCC000-memory.dmp

memory/1752-32-0x000007FEF5E40000-0x000007FEF682C000-memory.dmp

memory/1752-33-0x0000000002230000-0x000000000226A000-memory.dmp

\Users\Admin\AppData\Local\Temp\tmpB97F.tmp

MD5 1b942faa8e8b1008a8c3c1004ba57349
SHA1 cd99977f6c1819b12b33240b784ca816dfe2cb91
SHA256 555ccb7ecd9ae52a75135fdd81ab443a49d5785b0621ed6468d28c4234e46ccc
SHA512 5aee3d59478d41ddd5885c99b394c9c4983064e2b3528db1a3f7fc289662bced4f57d072517bbe7573c6d1789435e987ef1aa9cc91f372bcfd30bc016675fa43