Malware Analysis Report

2024-12-07 03:14

Sample ID 241113-3nm3hsvlcl
Target 7a8fe7d881adece62bb6057d8306d8a0d417a810a81882149587958bbf39ff25
SHA256 7a8fe7d881adece62bb6057d8306d8a0d417a810a81882149587958bbf39ff25
Tags
xworm execution rat trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

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

7a8fe7d881adece62bb6057d8306d8a0d417a810a81882149587958bbf39ff25

Threat Level: Known bad

The file 7a8fe7d881adece62bb6057d8306d8a0d417a810a81882149587958bbf39ff25 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

Unsigned PE

Enumerates physical storage devices

Suspicious use of AdjustPrivilegeToken

Suspicious behavior: AddClipboardFormatListener

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

Suspicious use of SetWindowsHookEx

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-13 23:39

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

2024-11-13 23:39

Reported

2024-11-13 23:42

Platform

win10v2004-20241007-en

Max time kernel

131s

Max time network

148s

Command Line

"C:\Users\Admin\AppData\Local\Temp\7a8fe7d881adece62bb6057d8306d8a0d417a810a81882149587958bbf39ff25.exe"

Signatures

Detect Xworm Payload

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

Xworm

trojan rat xworm

Xworm family

xworm

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\7a8fe7d881adece62bb6057d8306d8a0d417a810a81882149587958bbf39ff25.exe N/A

Drops startup file

Description Indicator Process Target
File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\smartscreen.lnk C:\Users\Admin\AppData\Local\Temp\7a8fe7d881adece62bb6057d8306d8a0d417a810a81882149587958bbf39ff25.exe N/A
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\smartscreen.lnk C:\Users\Admin\AppData\Local\Temp\7a8fe7d881adece62bb6057d8306d8a0d417a810a81882149587958bbf39ff25.exe N/A

Enumerates physical storage devices

Suspicious behavior: AddClipboardFormatListener

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\7a8fe7d881adece62bb6057d8306d8a0d417a810a81882149587958bbf39ff25.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\7a8fe7d881adece62bb6057d8306d8a0d417a810a81882149587958bbf39ff25.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

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\7a8fe7d881adece62bb6057d8306d8a0d417a810a81882149587958bbf39ff25.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4324 wrote to memory of 2124 N/A C:\Users\Admin\AppData\Local\Temp\7a8fe7d881adece62bb6057d8306d8a0d417a810a81882149587958bbf39ff25.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 4324 wrote to memory of 2124 N/A C:\Users\Admin\AppData\Local\Temp\7a8fe7d881adece62bb6057d8306d8a0d417a810a81882149587958bbf39ff25.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 4324 wrote to memory of 2568 N/A C:\Users\Admin\AppData\Local\Temp\7a8fe7d881adece62bb6057d8306d8a0d417a810a81882149587958bbf39ff25.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 4324 wrote to memory of 2568 N/A C:\Users\Admin\AppData\Local\Temp\7a8fe7d881adece62bb6057d8306d8a0d417a810a81882149587958bbf39ff25.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 4324 wrote to memory of 4296 N/A C:\Users\Admin\AppData\Local\Temp\7a8fe7d881adece62bb6057d8306d8a0d417a810a81882149587958bbf39ff25.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 4324 wrote to memory of 4296 N/A C:\Users\Admin\AppData\Local\Temp\7a8fe7d881adece62bb6057d8306d8a0d417a810a81882149587958bbf39ff25.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 4324 wrote to memory of 3376 N/A C:\Users\Admin\AppData\Local\Temp\7a8fe7d881adece62bb6057d8306d8a0d417a810a81882149587958bbf39ff25.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 4324 wrote to memory of 3376 N/A C:\Users\Admin\AppData\Local\Temp\7a8fe7d881adece62bb6057d8306d8a0d417a810a81882149587958bbf39ff25.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe

Processes

C:\Users\Admin\AppData\Local\Temp\7a8fe7d881adece62bb6057d8306d8a0d417a810a81882149587958bbf39ff25.exe

"C:\Users\Admin\AppData\Local\Temp\7a8fe7d881adece62bb6057d8306d8a0d417a810a81882149587958bbf39ff25.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\7a8fe7d881adece62bb6057d8306d8a0d417a810a81882149587958bbf39ff25.exe'

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

"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess '7a8fe7d881adece62bb6057d8306d8a0d417a810a81882149587958bbf39ff25.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\smartscreen.exe'

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

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

Network

Country Destination Domain Proto
US 8.8.8.8:53 58.55.71.13.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 4.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 api.telegram.org udp
NL 149.154.167.220:443 api.telegram.org tcp
US 8.8.8.8:53 232.168.11.51.in-addr.arpa udp
US 8.8.8.8:53 220.167.154.149.in-addr.arpa udp
SG 146.190.110.91:3389 tcp
US 8.8.8.8:53 200.163.202.172.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
SG 146.190.110.91:3389 tcp
SG 146.190.110.91:3389 tcp
US 8.8.8.8:53 43.229.111.52.in-addr.arpa udp
SG 146.190.110.91:3389 tcp
SG 146.190.110.91:3389 tcp

Files

memory/4324-0-0x00007FFF2B5F3000-0x00007FFF2B5F5000-memory.dmp

memory/4324-1-0x0000000000890000-0x00000000008A6000-memory.dmp

memory/2124-7-0x000002815CE90000-0x000002815CEB2000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_b2gq0nvp.h2o.ps1

MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

memory/2124-12-0x00007FFF2B5F0000-0x00007FFF2C0B1000-memory.dmp

memory/2124-13-0x00007FFF2B5F0000-0x00007FFF2C0B1000-memory.dmp

memory/2124-14-0x00007FFF2B5F0000-0x00007FFF2C0B1000-memory.dmp

memory/2124-17-0x00007FFF2B5F0000-0x00007FFF2C0B1000-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 cadef9abd087803c630df65264a6c81c
SHA1 babbf3636c347c8727c35f3eef2ee643dbcc4bd2
SHA256 cce65b73cdfe9304bcd5207913e8b60fb69faa20cd3b684f2b0343b755b99438
SHA512 7278aa87124abb382d9024a645e881e7b7cf1b84e8894943b36e018dbf0399e6858392f77980b599fa5488e2e21bf757a0702fe6419417edac93b68e0c2ec085

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

MD5 10fb30dc297f99d6ebafa5fee8b24fa2
SHA1 76904509313a49a765edcde26b69c3a61f9fa225
SHA256 567bcacac120711fc04bf8e6c8cd0bff7b61e8ee0a6316254d1005ebb1264e6a
SHA512 c42ace1ea0923fa55592f4f486a508ea56997fdbe0200016b0fc16a33452fc28e4530129a315b3b3a5ede37a07097c13a0eb310c9e91e5d97bb7ce7b955b9498

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

MD5 b51dc9e5ec3c97f72b4ca9488bbb4462
SHA1 5c1e8c0b728cd124edcacefb399bbd5e25b21bd3
SHA256 976f9534aa2976c85c2455bdde786a3f55d63aefdd40942eba1223c4c93590db
SHA512 0e5aa6cf64c535aefb833e5757b68e1094c87424abe2615a7d7d26b1b31eff358d12e36e75ca57fd690a9919b776600bf4c5c0e5a5df55366ba62238bdf3f280

memory/4324-56-0x00007FFF2B5F0000-0x00007FFF2C0B1000-memory.dmp

memory/4324-57-0x00007FFF2B5F3000-0x00007FFF2B5F5000-memory.dmp

memory/4324-58-0x00007FFF2B5F0000-0x00007FFF2C0B1000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2024-11-13 23:39

Reported

2024-11-13 23:42

Platform

win7-20241010-en

Max time kernel

136s

Max time network

151s

Command Line

"C:\Users\Admin\AppData\Local\Temp\7a8fe7d881adece62bb6057d8306d8a0d417a810a81882149587958bbf39ff25.exe"

Signatures

Detect Xworm Payload

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

Xworm

trojan rat xworm

Xworm family

xworm

Drops startup file

Description Indicator Process Target
File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\smartscreen.lnk C:\Users\Admin\AppData\Local\Temp\7a8fe7d881adece62bb6057d8306d8a0d417a810a81882149587958bbf39ff25.exe N/A
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\smartscreen.lnk C:\Users\Admin\AppData\Local\Temp\7a8fe7d881adece62bb6057d8306d8a0d417a810a81882149587958bbf39ff25.exe N/A

Enumerates physical storage devices

Suspicious behavior: AddClipboardFormatListener

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\7a8fe7d881adece62bb6057d8306d8a0d417a810a81882149587958bbf39ff25.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\7a8fe7d881adece62bb6057d8306d8a0d417a810a81882149587958bbf39ff25.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

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\7a8fe7d881adece62bb6057d8306d8a0d417a810a81882149587958bbf39ff25.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 804 wrote to memory of 2556 N/A C:\Users\Admin\AppData\Local\Temp\7a8fe7d881adece62bb6057d8306d8a0d417a810a81882149587958bbf39ff25.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 804 wrote to memory of 2556 N/A C:\Users\Admin\AppData\Local\Temp\7a8fe7d881adece62bb6057d8306d8a0d417a810a81882149587958bbf39ff25.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 804 wrote to memory of 2556 N/A C:\Users\Admin\AppData\Local\Temp\7a8fe7d881adece62bb6057d8306d8a0d417a810a81882149587958bbf39ff25.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 804 wrote to memory of 2888 N/A C:\Users\Admin\AppData\Local\Temp\7a8fe7d881adece62bb6057d8306d8a0d417a810a81882149587958bbf39ff25.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 804 wrote to memory of 2888 N/A C:\Users\Admin\AppData\Local\Temp\7a8fe7d881adece62bb6057d8306d8a0d417a810a81882149587958bbf39ff25.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 804 wrote to memory of 2888 N/A C:\Users\Admin\AppData\Local\Temp\7a8fe7d881adece62bb6057d8306d8a0d417a810a81882149587958bbf39ff25.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 804 wrote to memory of 2780 N/A C:\Users\Admin\AppData\Local\Temp\7a8fe7d881adece62bb6057d8306d8a0d417a810a81882149587958bbf39ff25.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 804 wrote to memory of 2780 N/A C:\Users\Admin\AppData\Local\Temp\7a8fe7d881adece62bb6057d8306d8a0d417a810a81882149587958bbf39ff25.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 804 wrote to memory of 2780 N/A C:\Users\Admin\AppData\Local\Temp\7a8fe7d881adece62bb6057d8306d8a0d417a810a81882149587958bbf39ff25.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 804 wrote to memory of 2788 N/A C:\Users\Admin\AppData\Local\Temp\7a8fe7d881adece62bb6057d8306d8a0d417a810a81882149587958bbf39ff25.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 804 wrote to memory of 2788 N/A C:\Users\Admin\AppData\Local\Temp\7a8fe7d881adece62bb6057d8306d8a0d417a810a81882149587958bbf39ff25.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 804 wrote to memory of 2788 N/A C:\Users\Admin\AppData\Local\Temp\7a8fe7d881adece62bb6057d8306d8a0d417a810a81882149587958bbf39ff25.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe

Processes

C:\Users\Admin\AppData\Local\Temp\7a8fe7d881adece62bb6057d8306d8a0d417a810a81882149587958bbf39ff25.exe

"C:\Users\Admin\AppData\Local\Temp\7a8fe7d881adece62bb6057d8306d8a0d417a810a81882149587958bbf39ff25.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\7a8fe7d881adece62bb6057d8306d8a0d417a810a81882149587958bbf39ff25.exe'

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

"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess '7a8fe7d881adece62bb6057d8306d8a0d417a810a81882149587958bbf39ff25.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\smartscreen.exe'

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

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

Network

Country Destination Domain Proto
US 8.8.8.8:53 api.telegram.org udp
NL 149.154.167.220:443 api.telegram.org tcp
SG 146.190.110.91:3389 tcp
SG 146.190.110.91:3389 tcp
SG 146.190.110.91:3389 tcp
SG 146.190.110.91:3389 tcp
SG 146.190.110.91:3389 tcp

Files

memory/804-0-0x000007FEF58E3000-0x000007FEF58E4000-memory.dmp

memory/804-1-0x0000000001030000-0x0000000001046000-memory.dmp

memory/2556-6-0x00000000024F0000-0x0000000002570000-memory.dmp

memory/2556-7-0x000000001B330000-0x000000001B612000-memory.dmp

memory/2556-8-0x0000000002290000-0x0000000002298000-memory.dmp

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

MD5 9360e94ddc4024b1e9e50d4a2db0fdfc
SHA1 f964cd425bab29aab4417a6ca9a533bc1e71bcb4
SHA256 40fb6e451a7641b5da731f6129e5f554ecefb0cc10c6fd44429762e071b6c4a3
SHA512 0a67be170adb83896d4863af52e03028b2678b7386af878eaee1337a09cb3c3995980ad600bde20322b63184145d502e72f52eb18d902f657ad4d18a114ea30b

memory/2888-14-0x000000001B200000-0x000000001B4E2000-memory.dmp

memory/2888-15-0x00000000024E0000-0x00000000024E8000-memory.dmp

memory/804-26-0x000007FEF58E3000-0x000007FEF58E4000-memory.dmp

memory/804-31-0x00000000003D0000-0x0000000000450000-memory.dmp

memory/804-32-0x00000000003D0000-0x0000000000450000-memory.dmp