Malware Analysis Report

2024-09-11 14:49

Sample ID 240610-mkec7sge44
Target test.exe
SHA256 5ad2c9bc9b215c48eda0f2cb9a9e7c224886fade2e15296bd965827e905b26b9
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

5ad2c9bc9b215c48eda0f2cb9a9e7c224886fade2e15296bd965827e905b26b9

Threat Level: Known bad

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

Malicious Activity Summary

xworm execution rat trojan

Detect Xworm Payload

Xworm

Xworm family

Command and Scripting Interpreter: PowerShell

Drops startup file

Checks computer location settings

Looks up external IP address via web service

Enumerates physical storage devices

Unsigned PE

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

Suspicious use of AdjustPrivilegeToken

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
System Information Discovery
T1082
Query Registry
T1012
Lateral Movement
TA0008
Collection
TA0009
Exfiltration
TA0010
Command and Control
TA0011
Impact
TA0040
Resource Development
TA0042
Reconnaissance
TA0043

Analysis: static1

Detonation Overview

Reported

2024-06-10 10:31

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

2024-06-10 10:31

Reported

2024-06-10 10:34

Platform

win11-20240426-en

Max time kernel

139s

Max time network

94s

Command Line

"C:\Users\Admin\AppData\Local\Temp\test.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 created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\XClient.lnk C:\Users\Admin\AppData\Local\Temp\test.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\test.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\test.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\test.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4928 wrote to memory of 1224 N/A C:\Users\Admin\AppData\Local\Temp\test.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 4928 wrote to memory of 1224 N/A C:\Users\Admin\AppData\Local\Temp\test.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 4928 wrote to memory of 1552 N/A C:\Users\Admin\AppData\Local\Temp\test.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 4928 wrote to memory of 1552 N/A C:\Users\Admin\AppData\Local\Temp\test.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 4928 wrote to memory of 2152 N/A C:\Users\Admin\AppData\Local\Temp\test.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 4928 wrote to memory of 2152 N/A C:\Users\Admin\AppData\Local\Temp\test.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 4928 wrote to memory of 4012 N/A C:\Users\Admin\AppData\Local\Temp\test.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 4928 wrote to memory of 4012 N/A C:\Users\Admin\AppData\Local\Temp\test.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe

Processes

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

"C:\Users\Admin\AppData\Local\Temp\test.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\test.exe'

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

"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'test.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 1.112.95.208.in-addr.arpa udp
N/A 127.0.0.1:80 tcp
N/A 127.0.0.1:80 tcp
N/A 127.0.0.1:80 tcp
N/A 127.0.0.1:80 tcp
N/A 127.0.0.1:80 tcp
N/A 127.0.0.1:80 tcp
N/A 127.0.0.1:80 tcp
N/A 127.0.0.1:80 tcp
N/A 127.0.0.1:80 tcp
N/A 127.0.0.1:80 tcp
N/A 127.0.0.1:80 tcp
N/A 127.0.0.1:80 tcp
N/A 127.0.0.1:80 tcp
N/A 127.0.0.1:80 tcp
N/A 127.0.0.1:80 tcp
N/A 127.0.0.1:80 tcp

Files

memory/4928-0-0x0000000000F90000-0x0000000000FCE000-memory.dmp

memory/4928-1-0x00007FFA0B7C3000-0x00007FFA0B7C5000-memory.dmp

memory/4928-2-0x00007FFA0B7C0000-0x00007FFA0C282000-memory.dmp

memory/1224-3-0x000001FAC8B30000-0x000001FAC8B52000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_qasr53vl.t2e.ps1

MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

memory/1224-12-0x00007FFA0B7C0000-0x00007FFA0C282000-memory.dmp

memory/1224-13-0x00007FFA0B7C0000-0x00007FFA0C282000-memory.dmp

memory/1224-14-0x00007FFA0B7C0000-0x00007FFA0C282000-memory.dmp

memory/1224-15-0x00007FFA0B7C0000-0x00007FFA0C282000-memory.dmp

memory/1224-16-0x00007FFA0B7C0000-0x00007FFA0C282000-memory.dmp

memory/1224-19-0x00007FFA0B7C0000-0x00007FFA0C282000-memory.dmp

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

MD5 627073ee3ca9676911bee35548eff2b8
SHA1 4c4b68c65e2cab9864b51167d710aa29ebdcff2e
SHA256 85b280a39fc31ba1e15fb06102a05b8405ff3b82feb181d4170f04e466dd647c
SHA512 3c5f6c03e253b83c57e8d6f0334187dbdcdf4fa549eecd36cbc1322dca6d3ca891dc6a019c49ec2eafb88f82d0434299c31e4dfaab123acb42e0546218f311fb

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

MD5 1a9fa92a4f2e2ec9e244d43a6a4f8fb9
SHA1 9910190edfaccece1dfcc1d92e357772f5dae8f7
SHA256 0ee052d5333fd5fd86bc84856fec98e045f077a7ac8051651bf7c521b9706888
SHA512 5d2361476fa22200e6f83883efe7dcb8c3fe7dae8d56e04e28a36e9ae1270c327b6aa161d92b239593da7661289d002c574446ecfd6bd19928209aae25e3ef64

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

MD5 4832e6784d5dd42b352e11eed9e616d4
SHA1 ff253b72b671f314f9a3d55d3208e68e4570e54c
SHA256 e9b7930e47e7af8186e0b369a72f7d81a832394a8314aa9d524f6f6f230800ef
SHA512 518ef7cac3c4f1f0d6f870579cbf6ded873cb21d7257677746ff43b088da66fadd6f76c8fe0588c0dd742d902e994cf14a3361e54fa804581d979d4841d5e773

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

MD5 3da987a7d5d8e16626e0a3ce65f3e920
SHA1 2694a4fd9d2cc3c6048b5870f4ef9063e1b4a181
SHA256 97c482c6b4f613c455beb14d3198e4e3ef896ed9a67b2d7422ae000e442b433c
SHA512 6e80ec5f97eb09b28ba814945297687f70192dbe792b2a3dfe8cdd587361a63c83f215bd7c84fa8b573d2578e7e6bfe0c69d2a888044ad1cf8f55020b023aea9

memory/4928-55-0x00007FFA0B7C0000-0x00007FFA0C282000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-10 10:31

Reported

2024-06-10 10:34

Platform

win10v2004-20240508-en

Max time kernel

145s

Max time network

93s

Command Line

"C:\Users\Admin\AppData\Local\Temp\test.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\test.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\test.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\test.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\test.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\test.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4736 wrote to memory of 2128 N/A C:\Users\Admin\AppData\Local\Temp\test.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 4736 wrote to memory of 2128 N/A C:\Users\Admin\AppData\Local\Temp\test.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 4736 wrote to memory of 5108 N/A C:\Users\Admin\AppData\Local\Temp\test.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 4736 wrote to memory of 5108 N/A C:\Users\Admin\AppData\Local\Temp\test.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 4736 wrote to memory of 3952 N/A C:\Users\Admin\AppData\Local\Temp\test.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 4736 wrote to memory of 3952 N/A C:\Users\Admin\AppData\Local\Temp\test.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 4736 wrote to memory of 4684 N/A C:\Users\Admin\AppData\Local\Temp\test.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 4736 wrote to memory of 4684 N/A C:\Users\Admin\AppData\Local\Temp\test.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe

Processes

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

"C:\Users\Admin\AppData\Local\Temp\test.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\test.exe'

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

"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'test.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 97.17.167.52.in-addr.arpa udp
US 8.8.8.8:53 64.159.190.20.in-addr.arpa udp
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 1.112.95.208.in-addr.arpa udp
N/A 127.0.0.1:80 tcp
US 8.8.8.8:53 183.142.211.20.in-addr.arpa udp
US 8.8.8.8:53 196.249.167.52.in-addr.arpa udp
N/A 127.0.0.1:80 tcp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
N/A 127.0.0.1:80 tcp
N/A 127.0.0.1:80 tcp
N/A 127.0.0.1:80 tcp
N/A 127.0.0.1:80 tcp
N/A 127.0.0.1:80 tcp
N/A 127.0.0.1:80 tcp
N/A 127.0.0.1:80 tcp
N/A 127.0.0.1:80 tcp
US 8.8.8.8:53 73.144.22.2.in-addr.arpa udp
N/A 127.0.0.1:80 tcp
N/A 127.0.0.1:80 tcp
N/A 127.0.0.1:80 tcp
N/A 127.0.0.1:80 tcp
N/A 127.0.0.1:80 tcp
N/A 127.0.0.1:80 tcp
N/A 127.0.0.1:80 tcp

Files

memory/4736-0-0x00007FFC9BA73000-0x00007FFC9BA75000-memory.dmp

memory/4736-1-0x00000000005B0000-0x00000000005EE000-memory.dmp

memory/4736-2-0x00007FFC9BA70000-0x00007FFC9C531000-memory.dmp

memory/2128-4-0x00000267F45A0000-0x00000267F45C2000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_zwtrfoin.mvf.ps1

MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

memory/2128-3-0x00007FFC9BA70000-0x00007FFC9C531000-memory.dmp

memory/2128-14-0x00007FFC9BA70000-0x00007FFC9C531000-memory.dmp

memory/2128-15-0x00007FFC9BA70000-0x00007FFC9C531000-memory.dmp

memory/2128-18-0x00007FFC9BA70000-0x00007FFC9C531000-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 2979eabc783eaca50de7be23dd4eafcf
SHA1 d709ce5f3a06b7958a67e20870bfd95b83cad2ea
SHA256 006cca90e78fbb571532a83082ac6712721a34ea4b21f490058ffb3f521f4903
SHA512 92bc433990572d9427d0c93eef9bd1cc23fa00ed60dd0c9c983d87d3421e02ce3f156c6f88fe916ef6782dbf185cbce083bc0094f8c527f302be6a37d1c53aba

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

MD5 ba169f4dcbbf147fe78ef0061a95e83b
SHA1 92a571a6eef49fff666e0f62a3545bcd1cdcda67
SHA256 5ef1421e19fde4bc03cd825dd7d6c0e7863f85fd8f0aa4a4d4f8d555dc7606d1
SHA512 8d2e5e552210dcda684682538bc964fdd8a8ff5b24cc2cc8af813729f0202191f98eb42d38d2355df17ae620fe401aad6ceaedaed3b112fdacd32485a3a0c07c

memory/3952-42-0x0000022EFDA60000-0x0000022EFDC7C000-memory.dmp

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

MD5 92ce90510661e3feb67a7402a4cb5b29
SHA1 c60cc51ef4cf9c4d187ac3302e1746caadd7574c
SHA256 a074d698fcbb648a3a1b7932d0c6b5c043d6a5c08747454990007b1f02cf9455
SHA512 30eb234157ed74e6467bf492f5af835302ffa05e349ed2ebaa2c7a571ce6b9422fbc54bb9b18bc411dc376eda14b28a2cee59c593ba2fb65ce4acf8b493b8826

memory/4684-54-0x0000020067D30000-0x0000020067F4C000-memory.dmp

memory/4736-59-0x00007FFC9BA73000-0x00007FFC9BA75000-memory.dmp

memory/4736-60-0x00007FFC9BA70000-0x00007FFC9C531000-memory.dmp