Analysis Overview
SHA256
23a9505d97a5c7c3ac76901f21e72ca79d0aa56393c3e9e13f30f5286431f1cc
Threat Level: Known bad
The file dd0a4243de09c5864297da95ddc1362c was found to be: Known bad.
Malicious Activity Summary
DCRat payload
Process spawned unexpected child process
Dcrat family
DcRat
DCRat payload
Drops file in Drivers directory
Executes dropped EXE
Checks computer location settings
Loads dropped DLL
Adds Run key to start application
Drops file in System32 directory
Drops file in Program Files directory
Drops file in Windows directory
Unsigned PE
Enumerates physical storage devices
Creates scheduled task(s)
Uses Task Scheduler COM API
Suspicious use of WriteProcessMemory
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-03-25 02:41
Signatures
DCRat payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Dcrat family
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral2
Detonation Overview
Submitted
2024-03-25 02:41
Reported
2024-03-25 02:44
Platform
win10v2004-20240319-en
Max time kernel
145s
Max time network
156s
Command Line
Signatures
DcRat
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\system32\schtasks.exe | N/A |
| N/A | N/A | C:\Windows\system32\schtasks.exe | N/A |
| N/A | N/A | C:\Windows\system32\schtasks.exe | N/A |
| N/A | N/A | C:\Windows\system32\schtasks.exe | N/A |
| N/A | N/A | C:\Windows\system32\schtasks.exe | N/A |
| Key value queried | \REGISTRY\USER\S-1-5-21-817259280-2658881748-983986378-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\dd0a4243de09c5864297da95ddc1362c.exe | N/A |
| N/A | N/A | C:\Windows\system32\schtasks.exe | N/A |
Process spawned unexpected child process
| Description | Indicator | Process | Target |
| Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process | N/A | C:\Windows\system32\schtasks.exe | |
| Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process | N/A | C:\Windows\system32\schtasks.exe | |
| Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process | N/A | C:\Windows\system32\schtasks.exe | |
| Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process | N/A | C:\Windows\system32\schtasks.exe | |
| Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process | N/A | C:\Windows\system32\schtasks.exe | |
| Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process | N/A | C:\Windows\system32\schtasks.exe |
DCRat payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Drops file in Drivers directory
| Description | Indicator | Process | Target |
| File opened for modification | C:\Windows\System32\drivers\etc\hosts | C:\Monitornetdhcpcommon\UMkN4Z1\MonitornetdhcpcommonRefhostDll.exe | N/A |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-817259280-2658881748-983986378-1000\Control Panel\International\Geo\Nation | C:\Windows\SysWOW64\WScript.exe | N/A |
| Key value queried | \REGISTRY\USER\S-1-5-21-817259280-2658881748-983986378-1000\Control Panel\International\Geo\Nation | C:\Monitornetdhcpcommon\MonitornetdhcpcommonRefhostDll.exe | N/A |
| Key value queried | \REGISTRY\USER\S-1-5-21-817259280-2658881748-983986378-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\dd0a4243de09c5864297da95ddc1362c.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Monitornetdhcpcommon\MonitornetdhcpcommonRefhostDll.exe | N/A |
| N/A | N/A | C:\Monitornetdhcpcommon\UMkN4Z1\MonitornetdhcpcommonRefhostDll.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MonitornetdhcpcommonRefhostDll = "\"C:\\Monitornetdhcpcommon\\UMkN4Z1\\MonitornetdhcpcommonRefhostDll.exe\"" | C:\Monitornetdhcpcommon\MonitornetdhcpcommonRefhostDll.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\StartMenuExperienceHost = "\"C:\\Windows\\SystemApps\\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\\resources\\StartMenuExperienceHost.exe\"" | C:\Monitornetdhcpcommon\MonitornetdhcpcommonRefhostDll.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\taskhostw = "\"C:\\Windows\\BitLockerDiscoveryVolumeContents\\taskhostw.exe\"" | C:\Monitornetdhcpcommon\MonitornetdhcpcommonRefhostDll.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\StartMenuExperienceHost = "\"C:\\Recovery\\WindowsRE\\StartMenuExperienceHost.exe\"" | C:\Monitornetdhcpcommon\MonitornetdhcpcommonRefhostDll.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\msedge = "\"C:\\Program Files\\WindowsPowerShell\\Modules\\msedge.exe\"" | C:\Monitornetdhcpcommon\MonitornetdhcpcommonRefhostDll.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fontdrvhost = "\"C:\\Windows\\System32\\polstore\\fontdrvhost.exe\"" | C:\Monitornetdhcpcommon\MonitornetdhcpcommonRefhostDll.exe | N/A |
Drops file in System32 directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\System32\polstore\fontdrvhost.exe | C:\Monitornetdhcpcommon\MonitornetdhcpcommonRefhostDll.exe | N/A |
| File created | C:\Windows\System32\polstore\5b884080fd4f94e2695da25c503f9e33b9605b83 | C:\Monitornetdhcpcommon\MonitornetdhcpcommonRefhostDll.exe | N/A |
Drops file in Program Files directory
| Description | Indicator | Process | Target |
| File created | C:\Program Files\WindowsPowerShell\Modules\msedge.exe | C:\Monitornetdhcpcommon\MonitornetdhcpcommonRefhostDll.exe | N/A |
| File created | C:\Program Files\WindowsPowerShell\Modules\61a52ddc9dd915470897a065f14eeedfa88f98fd | C:\Monitornetdhcpcommon\MonitornetdhcpcommonRefhostDll.exe | N/A |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\BitLockerDiscoveryVolumeContents\ea9f0e6c9e2dcd4dfacdaf29ba21541fb815a988 | C:\Monitornetdhcpcommon\MonitornetdhcpcommonRefhostDll.exe | N/A |
| File created | C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\resources\StartMenuExperienceHost.exe | C:\Monitornetdhcpcommon\MonitornetdhcpcommonRefhostDll.exe | N/A |
| File created | C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\resources\55b276f4edf653fe07efe8f1ecc32d3d195abd16 | C:\Monitornetdhcpcommon\MonitornetdhcpcommonRefhostDll.exe | N/A |
| File created | C:\Windows\BitLockerDiscoveryVolumeContents\taskhostw.exe | C:\Monitornetdhcpcommon\MonitornetdhcpcommonRefhostDll.exe | N/A |
Enumerates physical storage devices
Creates scheduled task(s)
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\system32\schtasks.exe | N/A |
| N/A | N/A | C:\Windows\system32\schtasks.exe | N/A |
| N/A | N/A | C:\Windows\system32\schtasks.exe | N/A |
| N/A | N/A | C:\Windows\system32\schtasks.exe | N/A |
| N/A | N/A | C:\Windows\system32\schtasks.exe | N/A |
| N/A | N/A | C:\Windows\system32\schtasks.exe | N/A |
Modifies registry class
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\USER\S-1-5-21-817259280-2658881748-983986378-1000_Classes\Local Settings | C:\Users\Admin\AppData\Local\Temp\dd0a4243de09c5864297da95ddc1362c.exe | N/A |
| Key created | \REGISTRY\USER\S-1-5-21-817259280-2658881748-983986378-1000_Classes\Local Settings | C:\Monitornetdhcpcommon\MonitornetdhcpcommonRefhostDll.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Monitornetdhcpcommon\MonitornetdhcpcommonRefhostDll.exe | N/A |
| N/A | N/A | C:\Monitornetdhcpcommon\MonitornetdhcpcommonRefhostDll.exe | N/A |
| N/A | N/A | C:\Monitornetdhcpcommon\UMkN4Z1\MonitornetdhcpcommonRefhostDll.exe | N/A |
| N/A | N/A | C:\Monitornetdhcpcommon\UMkN4Z1\MonitornetdhcpcommonRefhostDll.exe | N/A |
| N/A | N/A | C:\Monitornetdhcpcommon\UMkN4Z1\MonitornetdhcpcommonRefhostDll.exe | N/A |
| N/A | N/A | C:\Monitornetdhcpcommon\UMkN4Z1\MonitornetdhcpcommonRefhostDll.exe | N/A |
| N/A | N/A | C:\Monitornetdhcpcommon\UMkN4Z1\MonitornetdhcpcommonRefhostDll.exe | N/A |
| N/A | N/A | C:\Monitornetdhcpcommon\UMkN4Z1\MonitornetdhcpcommonRefhostDll.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Monitornetdhcpcommon\MonitornetdhcpcommonRefhostDll.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Monitornetdhcpcommon\UMkN4Z1\MonitornetdhcpcommonRefhostDll.exe | N/A |
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Processes
C:\Users\Admin\AppData\Local\Temp\dd0a4243de09c5864297da95ddc1362c.exe
"C:\Users\Admin\AppData\Local\Temp\dd0a4243de09c5864297da95ddc1362c.exe"
C:\Windows\SysWOW64\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Monitornetdhcpcommon\qTMy7tKgcv8HK3o1cT.vbe"
C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Monitornetdhcpcommon\UMkN4Z1.bat" "
C:\Monitornetdhcpcommon\MonitornetdhcpcommonRefhostDll.exe
"C:\Monitornetdhcpcommon\MonitornetdhcpcommonRefhostDll.exe"
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "StartMenuExperienceHost" /sc ONLOGON /tr "'C:\Recovery\WindowsRE\StartMenuExperienceHost.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "msedge" /sc ONLOGON /tr "'C:\Program Files\WindowsPowerShell\Modules\msedge.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "fontdrvhost" /sc ONLOGON /tr "'C:\Windows\System32\polstore\fontdrvhost.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "MonitornetdhcpcommonRefhostDll" /sc ONLOGON /tr "'C:\Monitornetdhcpcommon\UMkN4Z1\MonitornetdhcpcommonRefhostDll.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "StartMenuExperienceHost" /sc ONLOGON /tr "'C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\resources\StartMenuExperienceHost.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "taskhostw" /sc ONLOGON /tr "'C:\Windows\BitLockerDiscoveryVolumeContents\taskhostw.exe'" /rl HIGHEST /f
C:\Windows\System32\cmd.exe
"C:\Windows\System32\cmd.exe" /C "C:\Users\Admin\AppData\Local\Temp\2CqMyoSWPb.bat"
C:\Windows\system32\chcp.com
chcp 65001
C:\Windows\system32\w32tm.exe
w32tm /stripchart /computer:localhost /period:5 /dataonly /samples:2
C:\Monitornetdhcpcommon\UMkN4Z1\MonitornetdhcpcommonRefhostDll.exe
"C:\Monitornetdhcpcommon\UMkN4Z1\MonitornetdhcpcommonRefhostDll.exe"
C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4080 --field-trial-handle=2232,i,3915538061666887171,15629965885515244134,262144 --variations-seed-version /prefetch:8
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 140.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 240.221.184.93.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 9.228.82.20.in-addr.arpa | udp |
| NL | 142.251.39.110:443 | tcp | |
| NL | 172.217.168.202:443 | tcp | |
| US | 8.8.8.8:53 | 41.110.16.96.in-addr.arpa | udp |
| RU | 92.63.96.207:80 | 92.63.96.207 | tcp |
| NL | 142.251.39.110:443 | tcp | |
| US | 8.8.8.8:53 | 207.96.63.92.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 26.165.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 15.164.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 217.135.221.88.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 173.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 22.236.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 208.238.32.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 1.173.189.20.in-addr.arpa | udp |
Files
C:\Monitornetdhcpcommon\qTMy7tKgcv8HK3o1cT.vbe
| MD5 | bf3d7f76563cab7463d7af23eae9806d |
| SHA1 | c5bf0526d8815d1223a1fd7919872ab22fb0d86c |
| SHA256 | 90d824616f4cfb00b38f8787620d092ece7fec348c788d4cafd4a37e30abe194 |
| SHA512 | 7020295c2f35b05297f432b387ae50fb884ba7eb856f333cf5dc16c2d779b11a1a64bdf7c4abdc974666e6225dc7824e6e45c6bc258519a0a5baaf95619ac430 |
C:\Monitornetdhcpcommon\UMkN4Z1.bat
| MD5 | 48a60762b79ad9f6a6243ac662713ce2 |
| SHA1 | b0adb833ec22168c21022ff4a9da743d2803dace |
| SHA256 | 7125fce7974bcb82ed25158d6df05502444032b5ee3dbd632b9688ea0aa3d4c4 |
| SHA512 | f26f35f69fd8fe4c83cad1e06cb5e0451654f6890242f4781a83d74c79d36116dd802e71f2914664d2858ac43a08ecec2fcabdd29093b8f40e03b79f30059cb3 |
C:\Monitornetdhcpcommon\MonitornetdhcpcommonRefhostDll.exe
| MD5 | 5403717e99762e8c0e9cc5e97c74473c |
| SHA1 | 3405db3bab54365efb29172f061dc461a43f9da3 |
| SHA256 | c282d6ab229dbc8f26ebe56d64db0c5ac2721a8d0d3d3f915563d125cccbbb4b |
| SHA512 | 334b4da3b0a8c92d1f10ddaae473379a0ed966e699d45aa57240c37464f3f30488375376d447f0e6ab621fa92337a79f95ca387dbb72e337565f0a9eda0400a3 |
memory/4228-12-0x0000000000E70000-0x0000000000FBE000-memory.dmp
memory/4228-13-0x00007FF8D3190000-0x00007FF8D3C51000-memory.dmp
memory/4228-14-0x000000001BD00000-0x000000001BD10000-memory.dmp
memory/4228-32-0x00007FF8D3190000-0x00007FF8D3C51000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\2CqMyoSWPb.bat
| MD5 | 1e56262fdece41c68476bcc2a877d541 |
| SHA1 | 9e6d4b8f328212ce0ed18b7371115e79849b10d7 |
| SHA256 | 7379e79f3e4d049a6e48965ae153758e9928cfa6d9eaf27c7ee15a09b5b2fe74 |
| SHA512 | b0b43aaf0a8d7e8cca3a88a6f7ce6a84995ea75994215e18a4d7ebeddde737453033c7f04a7be9b0894c04a8633ddec75dd29f5e27de9062017f93e2d5fc59b7 |
C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\MonitornetdhcpcommonRefhostDll.exe.log
| MD5 | b7c0c43fc7804baaa7dc87152cdc9554 |
| SHA1 | 1bab62bd56af745678d4e967d91e1ccfdeed4038 |
| SHA256 | 46386a61f3aaf1b1c2e6efc9fc7e9e9ff16cd13ae58b8d856835771fedb6d457 |
| SHA512 | 9fda3dd00a3406137e0113f13f78e77b20a76512b35820d38df696842cbbf2e2ebabfb99a3846c9637ecb54af858ec1551521187e379872973006426a253f769 |
memory/4420-38-0x00007FF8D3570000-0x00007FF8D4031000-memory.dmp
memory/4420-39-0x000000001B2D0000-0x000000001B2E0000-memory.dmp
memory/4420-40-0x00000000028F0000-0x00000000028F8000-memory.dmp
memory/4420-41-0x0000000002900000-0x0000000002908000-memory.dmp
memory/4420-42-0x0000000002910000-0x0000000002918000-memory.dmp
memory/4420-43-0x000000001B210000-0x000000001B21C000-memory.dmp
memory/4420-44-0x000000001B220000-0x000000001B22A000-memory.dmp
memory/4420-45-0x000000001B230000-0x000000001B238000-memory.dmp
memory/4420-46-0x000000001B240000-0x000000001B248000-memory.dmp
memory/4420-47-0x0000000002920000-0x0000000002928000-memory.dmp
memory/4420-48-0x000000001B250000-0x000000001B258000-memory.dmp
memory/4420-49-0x000000001B280000-0x000000001B288000-memory.dmp
memory/4420-51-0x000000001B260000-0x000000001B268000-memory.dmp
memory/4420-52-0x000000001B270000-0x000000001B278000-memory.dmp
memory/4420-53-0x000000001B290000-0x000000001B298000-memory.dmp
memory/4420-54-0x000000001B2A0000-0x000000001B2A8000-memory.dmp
memory/4420-56-0x000000001B380000-0x000000001B388000-memory.dmp
memory/4420-58-0x000000001B2D0000-0x000000001B2E0000-memory.dmp
memory/4420-57-0x000000001B390000-0x000000001B398000-memory.dmp
memory/4420-55-0x000000001B2D0000-0x000000001B2E0000-memory.dmp
memory/4420-59-0x000000001B3A0000-0x000000001B3A8000-memory.dmp
memory/4420-60-0x000000001B2D0000-0x000000001B2E0000-memory.dmp
memory/4420-61-0x000000001B2D0000-0x000000001B2E0000-memory.dmp
memory/4420-62-0x00007FF8D3570000-0x00007FF8D4031000-memory.dmp
Analysis: behavioral1
Detonation Overview
Submitted
2024-03-25 02:41
Reported
2024-03-25 02:44
Platform
win7-20240221-en
Max time kernel
118s
Max time network
121s
Command Line
Signatures
DcRat
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\system32\schtasks.exe | N/A |
| N/A | N/A | C:\Windows\system32\schtasks.exe | N/A |
| File created | C:\Windows\System32\sppwmi\sppsvc.exe | C:\Monitornetdhcpcommon\MonitornetdhcpcommonRefhostDll.exe | N/A |
| N/A | N/A | C:\Windows\system32\schtasks.exe | N/A |
| N/A | N/A | C:\Windows\system32\schtasks.exe | N/A |
| N/A | N/A | C:\Windows\system32\schtasks.exe | N/A |
| N/A | N/A | C:\Windows\system32\schtasks.exe | N/A |
Process spawned unexpected child process
| Description | Indicator | Process | Target |
| Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process | N/A | C:\Windows\system32\schtasks.exe | |
| Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process | N/A | C:\Windows\system32\schtasks.exe | |
| Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process | N/A | C:\Windows\system32\schtasks.exe | |
| Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process | N/A | C:\Windows\system32\schtasks.exe | |
| Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process | N/A | C:\Windows\system32\schtasks.exe | |
| Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process | N/A | C:\Windows\system32\schtasks.exe |
DCRat payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Drops file in Drivers directory
| Description | Indicator | Process | Target |
| File opened for modification | C:\Windows\System32\drivers\etc\hosts | C:\Program Files\Windows Media Player\winlogon.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Monitornetdhcpcommon\MonitornetdhcpcommonRefhostDll.exe | N/A |
| N/A | N/A | C:\Program Files\Windows Media Player\winlogon.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\cmd.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\cmd.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\sppsvc = "\"C:\\Windows\\System32\\sppwmi\\sppsvc.exe\"" | C:\Monitornetdhcpcommon\MonitornetdhcpcommonRefhostDll.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\winlogon = "\"C:\\Program Files\\Windows Media Player\\winlogon.exe\"" | C:\Monitornetdhcpcommon\MonitornetdhcpcommonRefhostDll.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cmd = "\"C:\\Windows\\SysWOW64\\setup16\\cmd.exe\"" | C:\Monitornetdhcpcommon\MonitornetdhcpcommonRefhostDll.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\services = "\"C:\\PerfLogs\\Admin\\services.exe\"" | C:\Monitornetdhcpcommon\MonitornetdhcpcommonRefhostDll.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\sppsvc = "\"C:\\Monitornetdhcpcommon\\sppsvc.exe\"" | C:\Monitornetdhcpcommon\MonitornetdhcpcommonRefhostDll.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\System32\\EhStorAPI\\csrss.exe\"" | C:\Monitornetdhcpcommon\MonitornetdhcpcommonRefhostDll.exe | N/A |
Drops file in System32 directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\SysWOW64\setup16\cmd.exe | C:\Monitornetdhcpcommon\MonitornetdhcpcommonRefhostDll.exe | N/A |
| File created | C:\Windows\SysWOW64\setup16\ebf1f9fa8afd6d1932bd65bc4cc3af89a4c8e228 | C:\Monitornetdhcpcommon\MonitornetdhcpcommonRefhostDll.exe | N/A |
| File created | C:\Windows\System32\EhStorAPI\csrss.exe | C:\Monitornetdhcpcommon\MonitornetdhcpcommonRefhostDll.exe | N/A |
| File created | C:\Windows\System32\EhStorAPI\886983d96e3d3e31032c679b2d4ea91b6c05afef | C:\Monitornetdhcpcommon\MonitornetdhcpcommonRefhostDll.exe | N/A |
| File created | C:\Windows\System32\sppwmi\sppsvc.exe | C:\Monitornetdhcpcommon\MonitornetdhcpcommonRefhostDll.exe | N/A |
| File opened for modification | C:\Windows\System32\sppwmi\sppsvc.exe | C:\Monitornetdhcpcommon\MonitornetdhcpcommonRefhostDll.exe | N/A |
| File created | C:\Windows\System32\sppwmi\0a1fd5f707cd16ea89afd3d6db52b2da58214a6c | C:\Monitornetdhcpcommon\MonitornetdhcpcommonRefhostDll.exe | N/A |
Drops file in Program Files directory
| Description | Indicator | Process | Target |
| File created | C:\Program Files\Windows Media Player\winlogon.exe | C:\Monitornetdhcpcommon\MonitornetdhcpcommonRefhostDll.exe | N/A |
| File created | C:\Program Files\Windows Media Player\cc11b995f2a76da408ea6a601e682e64743153ad | C:\Monitornetdhcpcommon\MonitornetdhcpcommonRefhostDll.exe | N/A |
Enumerates physical storage devices
Creates scheduled task(s)
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\system32\schtasks.exe | N/A |
| N/A | N/A | C:\Windows\system32\schtasks.exe | N/A |
| N/A | N/A | C:\Windows\system32\schtasks.exe | N/A |
| N/A | N/A | C:\Windows\system32\schtasks.exe | N/A |
| N/A | N/A | C:\Windows\system32\schtasks.exe | N/A |
| N/A | N/A | C:\Windows\system32\schtasks.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Monitornetdhcpcommon\MonitornetdhcpcommonRefhostDll.exe | N/A |
| N/A | N/A | C:\Program Files\Windows Media Player\winlogon.exe | N/A |
| N/A | N/A | C:\Program Files\Windows Media Player\winlogon.exe | N/A |
| N/A | N/A | C:\Program Files\Windows Media Player\winlogon.exe | N/A |
| N/A | N/A | C:\Program Files\Windows Media Player\winlogon.exe | N/A |
| N/A | N/A | C:\Program Files\Windows Media Player\winlogon.exe | N/A |
| N/A | N/A | C:\Program Files\Windows Media Player\winlogon.exe | N/A |
| N/A | N/A | C:\Program Files\Windows Media Player\winlogon.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Monitornetdhcpcommon\MonitornetdhcpcommonRefhostDll.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Program Files\Windows Media Player\winlogon.exe | N/A |
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Processes
C:\Users\Admin\AppData\Local\Temp\dd0a4243de09c5864297da95ddc1362c.exe
"C:\Users\Admin\AppData\Local\Temp\dd0a4243de09c5864297da95ddc1362c.exe"
C:\Windows\SysWOW64\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Monitornetdhcpcommon\qTMy7tKgcv8HK3o1cT.vbe"
C:\Windows\SysWOW64\cmd.exe
cmd /c ""C:\Monitornetdhcpcommon\UMkN4Z1.bat" "
C:\Monitornetdhcpcommon\MonitornetdhcpcommonRefhostDll.exe
"C:\Monitornetdhcpcommon\MonitornetdhcpcommonRefhostDll.exe"
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "sppsvc" /sc ONLOGON /tr "'C:\Windows\System32\sppwmi\sppsvc.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "winlogon" /sc ONLOGON /tr "'C:\Program Files\Windows Media Player\winlogon.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "cmd" /sc ONLOGON /tr "'C:\Windows\SysWOW64\setup16\cmd.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "services" /sc ONLOGON /tr "'C:\PerfLogs\Admin\services.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "sppsvc" /sc ONLOGON /tr "'C:\Monitornetdhcpcommon\sppsvc.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "csrss" /sc ONLOGON /tr "'C:\Windows\System32\EhStorAPI\csrss.exe'" /rl HIGHEST /f
C:\Program Files\Windows Media Player\winlogon.exe
"C:\Program Files\Windows Media Player\winlogon.exe"
Network
| Country | Destination | Domain | Proto |
| RU | 92.63.96.207:80 | 92.63.96.207 | tcp |
Files
C:\Monitornetdhcpcommon\qTMy7tKgcv8HK3o1cT.vbe
| MD5 | bf3d7f76563cab7463d7af23eae9806d |
| SHA1 | c5bf0526d8815d1223a1fd7919872ab22fb0d86c |
| SHA256 | 90d824616f4cfb00b38f8787620d092ece7fec348c788d4cafd4a37e30abe194 |
| SHA512 | 7020295c2f35b05297f432b387ae50fb884ba7eb856f333cf5dc16c2d779b11a1a64bdf7c4abdc974666e6225dc7824e6e45c6bc258519a0a5baaf95619ac430 |
C:\Monitornetdhcpcommon\UMkN4Z1.bat
| MD5 | 48a60762b79ad9f6a6243ac662713ce2 |
| SHA1 | b0adb833ec22168c21022ff4a9da743d2803dace |
| SHA256 | 7125fce7974bcb82ed25158d6df05502444032b5ee3dbd632b9688ea0aa3d4c4 |
| SHA512 | f26f35f69fd8fe4c83cad1e06cb5e0451654f6890242f4781a83d74c79d36116dd802e71f2914664d2858ac43a08ecec2fcabdd29093b8f40e03b79f30059cb3 |
\Monitornetdhcpcommon\MonitornetdhcpcommonRefhostDll.exe
| MD5 | 5403717e99762e8c0e9cc5e97c74473c |
| SHA1 | 3405db3bab54365efb29172f061dc461a43f9da3 |
| SHA256 | c282d6ab229dbc8f26ebe56d64db0c5ac2721a8d0d3d3f915563d125cccbbb4b |
| SHA512 | 334b4da3b0a8c92d1f10ddaae473379a0ed966e699d45aa57240c37464f3f30488375376d447f0e6ab621fa92337a79f95ca387dbb72e337565f0a9eda0400a3 |
memory/2428-13-0x0000000000340000-0x000000000048E000-memory.dmp
memory/2428-14-0x000007FEF6010000-0x000007FEF69FC000-memory.dmp
memory/2428-15-0x0000000000690000-0x0000000000710000-memory.dmp
memory/2784-36-0x00000000008F0000-0x0000000000A3E000-memory.dmp
memory/2784-35-0x000007FEF6010000-0x000007FEF69FC000-memory.dmp
memory/2428-34-0x000007FEF6010000-0x000007FEF69FC000-memory.dmp
memory/2784-37-0x000000001AFF0000-0x000000001B070000-memory.dmp
memory/2784-38-0x0000000000350000-0x0000000000358000-memory.dmp
memory/2784-39-0x0000000000370000-0x0000000000378000-memory.dmp
memory/2784-40-0x0000000000400000-0x0000000000408000-memory.dmp
memory/2784-41-0x00000000004A0000-0x00000000004AC000-memory.dmp
memory/2784-42-0x0000000000410000-0x000000000041A000-memory.dmp
memory/2784-43-0x00000000004C0000-0x00000000004C8000-memory.dmp
memory/2784-44-0x00000000004D0000-0x00000000004D8000-memory.dmp
memory/2784-45-0x00000000004E0000-0x00000000004E8000-memory.dmp
memory/2784-46-0x00000000004B0000-0x00000000004B8000-memory.dmp
memory/2784-48-0x00000000004F0000-0x00000000004F8000-memory.dmp
memory/2784-49-0x0000000000500000-0x0000000000508000-memory.dmp
memory/2784-50-0x0000000000510000-0x0000000000518000-memory.dmp
memory/2784-51-0x0000000000520000-0x0000000000528000-memory.dmp
memory/2784-52-0x0000000000580000-0x0000000000588000-memory.dmp
memory/2784-53-0x0000000000530000-0x0000000000538000-memory.dmp
memory/2784-54-0x0000000000540000-0x0000000000548000-memory.dmp
memory/2784-55-0x0000000000550000-0x0000000000558000-memory.dmp
memory/2784-56-0x000000001AFF0000-0x000000001B070000-memory.dmp
memory/2784-57-0x000000001AFF0000-0x000000001B070000-memory.dmp
memory/2784-58-0x000000001AFF0000-0x000000001B070000-memory.dmp
memory/2784-59-0x000007FEF6010000-0x000007FEF69FC000-memory.dmp