Analysis Overview
SHA256
2a31d3dc6783dad77df215a986789fb27933fe4b5c59705eb20c256788d4533c
Threat Level: Known bad
The file 2a31d3dc6783dad77df215a986789fb27933fe4b5c59705eb20c256788d4533c.exe was found to be: Known bad.
Malicious Activity Summary
Process spawned unexpected child process
Dcrat family
DcRat
DCRat payload
DCRat payload
Executes dropped EXE
Loads dropped DLL
Checks computer location settings
Drops file in Program Files directory
Drops file in Windows directory
Unsigned PE
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Suspicious use of WriteProcessMemory
Modifies registry class
Uses Task Scheduler COM API
Scheduled Task/Job: Scheduled Task
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-12-30 02:08
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: behavioral1
Detonation Overview
Submitted
2024-12-30 02:08
Reported
2024-12-30 02:11
Platform
win7-20240903-en
Max time kernel
122s
Max time network
122s
Command Line
Signatures
DcRat
Dcrat family
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 | |
| 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 | |
| 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 | |
| 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 | |
| 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 | |
| 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 | |
| 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 | |
| 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 |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\refBrokerDhcp\msbrowser.exe | N/A |
| N/A | N/A | C:\Users\Admin\Saved Games\dllhost.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 |
Drops file in Program Files directory
| Description | Indicator | Process | Target |
| File created | C:\Program Files\Windows Defender\ja-JP\f3b6ecef712a24 | C:\refBrokerDhcp\msbrowser.exe | N/A |
| File created | C:\Program Files (x86)\Microsoft Synchronization Services\ADO.NET\v1.0\WmiPrvSE.exe | C:\refBrokerDhcp\msbrowser.exe | N/A |
| File created | C:\Program Files\Windows Defender\ja-JP\spoolsv.exe | C:\refBrokerDhcp\msbrowser.exe | N/A |
| File created | C:\Program Files\Mozilla Firefox\defaults\WmiPrvSE.exe | C:\refBrokerDhcp\msbrowser.exe | N/A |
| File created | C:\Program Files\Mozilla Firefox\defaults\24dbde2999530e | C:\refBrokerDhcp\msbrowser.exe | N/A |
| File created | C:\Program Files (x86)\Microsoft Synchronization Services\ADO.NET\v1.0\24dbde2999530e | C:\refBrokerDhcp\msbrowser.exe | N/A |
| File created | C:\Program Files (x86)\Microsoft.NET\Primary Interop Assemblies\smss.exe | C:\refBrokerDhcp\msbrowser.exe | N/A |
| File created | C:\Program Files (x86)\Microsoft.NET\Primary Interop Assemblies\69ddcba757bf72 | C:\refBrokerDhcp\msbrowser.exe | N/A |
| File opened for modification | C:\Program Files\Windows Defender\ja-JP\spoolsv.exe | C:\refBrokerDhcp\msbrowser.exe | N/A |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\Downloaded Program Files\0a1fd5f707cd16 | C:\refBrokerDhcp\msbrowser.exe | N/A |
| File created | C:\Windows\BitLockerDiscoveryVolumeContents\csrss.exe | C:\refBrokerDhcp\msbrowser.exe | N/A |
| File created | C:\Windows\BitLockerDiscoveryVolumeContents\886983d96e3d3e | C:\refBrokerDhcp\msbrowser.exe | N/A |
| File created | C:\Windows\Downloaded Program Files\sppsvc.exe | C:\refBrokerDhcp\msbrowser.exe | N/A |
Enumerates physical storage devices
System Location Discovery: System Language Discovery
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\2a31d3dc6783dad77df215a986789fb27933fe4b5c59705eb20c256788d4533c.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\WScript.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\cmd.exe | N/A |
Scheduled Task/Job: Scheduled Task
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\refBrokerDhcp\msbrowser.exe | N/A |
| N/A | N/A | C:\Users\Admin\Saved Games\dllhost.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\refBrokerDhcp\msbrowser.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\Saved Games\dllhost.exe | N/A |
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Processes
C:\Users\Admin\AppData\Local\Temp\2a31d3dc6783dad77df215a986789fb27933fe4b5c59705eb20c256788d4533c.exe
"C:\Users\Admin\AppData\Local\Temp\2a31d3dc6783dad77df215a986789fb27933fe4b5c59705eb20c256788d4533c.exe"
C:\Windows\SysWOW64\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\refBrokerDhcp\QElwSQf83XBFhMyqm1gWbbiKf8tDaQ.vbe"
C:\Windows\SysWOW64\cmd.exe
cmd /c ""C:\refBrokerDhcp\eop7KwarhdN0r.bat" "
C:\refBrokerDhcp\msbrowser.exe
"C:\refBrokerDhcp\msbrowser.exe"
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "spoolsvs" /sc MINUTE /mo 8 /tr "'C:\Program Files\Windows Defender\ja-JP\spoolsv.exe'" /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "spoolsv" /sc ONLOGON /tr "'C:\Program Files\Windows Defender\ja-JP\spoolsv.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "spoolsvs" /sc MINUTE /mo 14 /tr "'C:\Program Files\Windows Defender\ja-JP\spoolsv.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "dllhostd" /sc MINUTE /mo 5 /tr "'C:\Users\Admin\Saved Games\dllhost.exe'" /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "dllhost" /sc ONLOGON /tr "'C:\Users\Admin\Saved Games\dllhost.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "dllhostd" /sc MINUTE /mo 13 /tr "'C:\Users\Admin\Saved Games\dllhost.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "sppsvcs" /sc MINUTE /mo 6 /tr "'C:\Windows\Downloaded Program Files\sppsvc.exe'" /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "sppsvc" /sc ONLOGON /tr "'C:\Windows\Downloaded Program Files\sppsvc.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "sppsvcs" /sc MINUTE /mo 12 /tr "'C:\Windows\Downloaded Program Files\sppsvc.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "lsml" /sc MINUTE /mo 10 /tr "'C:\refBrokerDhcp\lsm.exe'" /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "lsm" /sc ONLOGON /tr "'C:\refBrokerDhcp\lsm.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "lsml" /sc MINUTE /mo 8 /tr "'C:\refBrokerDhcp\lsm.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "dwmd" /sc MINUTE /mo 6 /tr "'C:\Recovery\209d6542-69f6-11ef-b491-62cb582c238c\dwm.exe'" /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "dwm" /sc ONLOGON /tr "'C:\Recovery\209d6542-69f6-11ef-b491-62cb582c238c\dwm.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "dwmd" /sc MINUTE /mo 8 /tr "'C:\Recovery\209d6542-69f6-11ef-b491-62cb582c238c\dwm.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 13 /tr "'C:\Windows\BitLockerDiscoveryVolumeContents\csrss.exe'" /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "csrss" /sc ONLOGON /tr "'C:\Windows\BitLockerDiscoveryVolumeContents\csrss.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 5 /tr "'C:\Windows\BitLockerDiscoveryVolumeContents\csrss.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "wininitw" /sc MINUTE /mo 12 /tr "'C:\Recovery\209d6542-69f6-11ef-b491-62cb582c238c\wininit.exe'" /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "wininit" /sc ONLOGON /tr "'C:\Recovery\209d6542-69f6-11ef-b491-62cb582c238c\wininit.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "wininitw" /sc MINUTE /mo 11 /tr "'C:\Recovery\209d6542-69f6-11ef-b491-62cb582c238c\wininit.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "WmiPrvSEW" /sc MINUTE /mo 5 /tr "'C:\Program Files\Mozilla Firefox\defaults\WmiPrvSE.exe'" /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "WmiPrvSE" /sc ONLOGON /tr "'C:\Program Files\Mozilla Firefox\defaults\WmiPrvSE.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "WmiPrvSEW" /sc MINUTE /mo 6 /tr "'C:\Program Files\Mozilla Firefox\defaults\WmiPrvSE.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "WmiPrvSEW" /sc MINUTE /mo 13 /tr "'C:\Program Files (x86)\Microsoft Synchronization Services\ADO.NET\v1.0\WmiPrvSE.exe'" /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "WmiPrvSE" /sc ONLOGON /tr "'C:\Program Files (x86)\Microsoft Synchronization Services\ADO.NET\v1.0\WmiPrvSE.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "WmiPrvSEW" /sc MINUTE /mo 7 /tr "'C:\Program Files (x86)\Microsoft Synchronization Services\ADO.NET\v1.0\WmiPrvSE.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "smsss" /sc MINUTE /mo 14 /tr "'C:\Program Files (x86)\Microsoft.NET\Primary Interop Assemblies\smss.exe'" /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "smss" /sc ONLOGON /tr "'C:\Program Files (x86)\Microsoft.NET\Primary Interop Assemblies\smss.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "smsss" /sc MINUTE /mo 8 /tr "'C:\Program Files (x86)\Microsoft.NET\Primary Interop Assemblies\smss.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "cmdc" /sc MINUTE /mo 9 /tr "'C:\refBrokerDhcp\cmd.exe'" /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "cmd" /sc ONLOGON /tr "'C:\refBrokerDhcp\cmd.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "cmdc" /sc MINUTE /mo 12 /tr "'C:\refBrokerDhcp\cmd.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "smsss" /sc MINUTE /mo 6 /tr "'C:\Recovery\209d6542-69f6-11ef-b491-62cb582c238c\smss.exe'" /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "smss" /sc ONLOGON /tr "'C:\Recovery\209d6542-69f6-11ef-b491-62cb582c238c\smss.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "smsss" /sc MINUTE /mo 9 /tr "'C:\Recovery\209d6542-69f6-11ef-b491-62cb582c238c\smss.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "spoolsvs" /sc MINUTE /mo 9 /tr "'C:\refBrokerDhcp\spoolsv.exe'" /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "spoolsv" /sc ONLOGON /tr "'C:\refBrokerDhcp\spoolsv.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "spoolsvs" /sc MINUTE /mo 11 /tr "'C:\refBrokerDhcp\spoolsv.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 5 /tr "'C:\refBrokerDhcp\csrss.exe'" /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "csrss" /sc ONLOGON /tr "'C:\refBrokerDhcp\csrss.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 6 /tr "'C:\refBrokerDhcp\csrss.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "sppsvcs" /sc MINUTE /mo 6 /tr "'C:\MSOCache\All Users\{90140000-0044-0409-0000-0000000FF1CE}-C\sppsvc.exe'" /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "sppsvc" /sc ONLOGON /tr "'C:\MSOCache\All Users\{90140000-0044-0409-0000-0000000FF1CE}-C\sppsvc.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "sppsvcs" /sc MINUTE /mo 14 /tr "'C:\MSOCache\All Users\{90140000-0044-0409-0000-0000000FF1CE}-C\sppsvc.exe'" /rl HIGHEST /f
C:\Users\Admin\Saved Games\dllhost.exe
"C:\Users\Admin\Saved Games\dllhost.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | a1069594.xsph.ru | udp |
| RU | 141.8.192.164:80 | a1069594.xsph.ru | tcp |
| RU | 141.8.192.164:80 | a1069594.xsph.ru | tcp |
Files
C:\refBrokerDhcp\QElwSQf83XBFhMyqm1gWbbiKf8tDaQ.vbe
| MD5 | c54e49eaeb59c57e0d7bb2398e8ea617 |
| SHA1 | 3e6bed8fb43f94c190bcdbfe33e9ba826275dfd6 |
| SHA256 | 0bcb8b3296b1b862104bc1917793a1b743afc9e623d91f5136fbf30ae7e022ed |
| SHA512 | d24dcd18188176f796b92d150b30d3b99c03654257fe48019308cca5ebb062c7312047fec43e0fa6823ff4ea29649c4f8db61f2ba950881df8a52ec15b662b85 |
C:\refBrokerDhcp\eop7KwarhdN0r.bat
| MD5 | 65cbca0f14030e37f4536942be742fed |
| SHA1 | 1823a610cfb0945e0e234651d4045931aa241ba5 |
| SHA256 | 7d881d8c2a5a8756b85abe067e24efdc7c657d1af28ba1132d0e9ae443941d5d |
| SHA512 | 87eb63d67e28c0f42c1b89c631c4573d0d8f9dc145f3720d26d3af8f7dc76e7d105b0598fe398f9e73d95e814301678097be811977c184ea2e101d4e0e8cc044 |
C:\refBrokerDhcp\msbrowser.exe
| MD5 | 3d428539f2cddf97abfe6586df2f2c1d |
| SHA1 | e828475a8e5ea8db3854cb66f0102c6532a0a997 |
| SHA256 | 58a180ba10aad7f5a7c9b86b2f93213fde5e2f4816393d7a19ddc9202bc1f7a4 |
| SHA512 | 325d96a63e0ddec4bb2c4c9fafa28b38c6961af0f4c282763eb82677037a50971ac2770c8277a11a80d7853218cc560600c18f7d201f23057387e0a858d05ccc |
memory/2712-13-0x0000000001290000-0x0000000001366000-memory.dmp
memory/3000-50-0x00000000003A0000-0x0000000000476000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-12-30 02:08
Reported
2024-12-30 02:11
Platform
win10v2004-20241007-en
Max time kernel
93s
Max time network
144s
Command Line
Signatures
DcRat
Dcrat family
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 | |
| 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 | |
| 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 |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\2a31d3dc6783dad77df215a986789fb27933fe4b5c59705eb20c256788d4533c.exe | N/A |
| Key value queried | \REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation | C:\Windows\SysWOW64\WScript.exe | N/A |
| Key value queried | \REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation | C:\refBrokerDhcp\msbrowser.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\refBrokerDhcp\msbrowser.exe | N/A |
| N/A | N/A | C:\Recovery\WindowsRE\SppExtComObj.exe | N/A |
Drops file in Program Files directory
| Description | Indicator | Process | Target |
| File created | C:\Program Files\Microsoft Office 15\ClientX64\6ccacd8608530f | C:\refBrokerDhcp\msbrowser.exe | N/A |
| File created | C:\Program Files\7-Zip\Lang\dwm.exe | C:\refBrokerDhcp\msbrowser.exe | N/A |
| File created | C:\Program Files\7-Zip\Lang\6cb0b6c459d5d3 | C:\refBrokerDhcp\msbrowser.exe | N/A |
| File created | C:\Program Files\Microsoft Office 15\ClientX64\Idle.exe | C:\refBrokerDhcp\msbrowser.exe | N/A |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\debug\csrss.exe | C:\refBrokerDhcp\msbrowser.exe | N/A |
| File opened for modification | C:\Windows\debug\csrss.exe | C:\refBrokerDhcp\msbrowser.exe | N/A |
| File created | C:\Windows\debug\886983d96e3d3e | C:\refBrokerDhcp\msbrowser.exe | N/A |
Enumerates physical storage devices
System Location Discovery: System Language Discovery
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\2a31d3dc6783dad77df215a986789fb27933fe4b5c59705eb20c256788d4533c.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\WScript.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\cmd.exe | N/A |
Modifies registry class
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000_Classes\Local Settings | C:\Users\Admin\AppData\Local\Temp\2a31d3dc6783dad77df215a986789fb27933fe4b5c59705eb20c256788d4533c.exe | N/A |
| Key created | \REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000_Classes\Local Settings | C:\refBrokerDhcp\msbrowser.exe | N/A |
Scheduled Task/Job: Scheduled Task
| 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 |
| 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 |
| 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:\refBrokerDhcp\msbrowser.exe | N/A |
| N/A | N/A | C:\refBrokerDhcp\msbrowser.exe | N/A |
| N/A | N/A | C:\refBrokerDhcp\msbrowser.exe | N/A |
| N/A | N/A | C:\Recovery\WindowsRE\SppExtComObj.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\refBrokerDhcp\msbrowser.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Recovery\WindowsRE\SppExtComObj.exe | N/A |
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Processes
C:\Users\Admin\AppData\Local\Temp\2a31d3dc6783dad77df215a986789fb27933fe4b5c59705eb20c256788d4533c.exe
"C:\Users\Admin\AppData\Local\Temp\2a31d3dc6783dad77df215a986789fb27933fe4b5c59705eb20c256788d4533c.exe"
C:\Windows\SysWOW64\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\refBrokerDhcp\QElwSQf83XBFhMyqm1gWbbiKf8tDaQ.vbe"
C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\refBrokerDhcp\eop7KwarhdN0r.bat" "
C:\refBrokerDhcp\msbrowser.exe
"C:\refBrokerDhcp\msbrowser.exe"
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 8 /tr "'C:\Windows\debug\csrss.exe'" /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "csrss" /sc ONLOGON /tr "'C:\Windows\debug\csrss.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 5 /tr "'C:\Windows\debug\csrss.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "SppExtComObjS" /sc MINUTE /mo 6 /tr "'C:\Recovery\WindowsRE\SppExtComObj.exe'" /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "SppExtComObj" /sc ONLOGON /tr "'C:\Recovery\WindowsRE\SppExtComObj.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "SppExtComObjS" /sc MINUTE /mo 12 /tr "'C:\Recovery\WindowsRE\SppExtComObj.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "IdleI" /sc MINUTE /mo 11 /tr "'C:\Program Files\Microsoft Office 15\ClientX64\Idle.exe'" /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "Idle" /sc ONLOGON /tr "'C:\Program Files\Microsoft Office 15\ClientX64\Idle.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "IdleI" /sc MINUTE /mo 12 /tr "'C:\Program Files\Microsoft Office 15\ClientX64\Idle.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "dwmd" /sc MINUTE /mo 9 /tr "'C:\Program Files\7-Zip\Lang\dwm.exe'" /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "dwm" /sc ONLOGON /tr "'C:\Program Files\7-Zip\Lang\dwm.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "dwmd" /sc MINUTE /mo 8 /tr "'C:\Program Files\7-Zip\Lang\dwm.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "SearchAppS" /sc MINUTE /mo 14 /tr "'C:\Recovery\WindowsRE\SearchApp.exe'" /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "SearchApp" /sc ONLOGON /tr "'C:\Recovery\WindowsRE\SearchApp.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "SearchAppS" /sc MINUTE /mo 14 /tr "'C:\Recovery\WindowsRE\SearchApp.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "smsss" /sc MINUTE /mo 5 /tr "'C:\Recovery\WindowsRE\smss.exe'" /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "smss" /sc ONLOGON /tr "'C:\Recovery\WindowsRE\smss.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "smsss" /sc MINUTE /mo 11 /tr "'C:\Recovery\WindowsRE\smss.exe'" /rl HIGHEST /f
C:\Windows\System32\cmd.exe
"C:\Windows\System32\cmd.exe" /C "C:\Users\Admin\AppData\Local\Temp\tKvCd3mm0w.bat"
C:\Windows\system32\w32tm.exe
w32tm /stripchart /computer:localhost /period:5 /dataonly /samples:2
C:\Recovery\WindowsRE\SppExtComObj.exe
"C:\Recovery\WindowsRE\SppExtComObj.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 28.118.140.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 241.150.49.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | a1069594.xsph.ru | udp |
| RU | 141.8.192.164:80 | a1069594.xsph.ru | tcp |
| US | 8.8.8.8:53 | 50.23.12.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 15.164.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 182.129.81.91.in-addr.arpa | udp |
| RU | 141.8.192.164:80 | a1069594.xsph.ru | tcp |
| US | 8.8.8.8:53 | 83.210.23.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 134.130.81.91.in-addr.arpa | udp |
Files
C:\refBrokerDhcp\QElwSQf83XBFhMyqm1gWbbiKf8tDaQ.vbe
| MD5 | c54e49eaeb59c57e0d7bb2398e8ea617 |
| SHA1 | 3e6bed8fb43f94c190bcdbfe33e9ba826275dfd6 |
| SHA256 | 0bcb8b3296b1b862104bc1917793a1b743afc9e623d91f5136fbf30ae7e022ed |
| SHA512 | d24dcd18188176f796b92d150b30d3b99c03654257fe48019308cca5ebb062c7312047fec43e0fa6823ff4ea29649c4f8db61f2ba950881df8a52ec15b662b85 |
C:\refBrokerDhcp\eop7KwarhdN0r.bat
| MD5 | 65cbca0f14030e37f4536942be742fed |
| SHA1 | 1823a610cfb0945e0e234651d4045931aa241ba5 |
| SHA256 | 7d881d8c2a5a8756b85abe067e24efdc7c657d1af28ba1132d0e9ae443941d5d |
| SHA512 | 87eb63d67e28c0f42c1b89c631c4573d0d8f9dc145f3720d26d3af8f7dc76e7d105b0598fe398f9e73d95e814301678097be811977c184ea2e101d4e0e8cc044 |
C:\refBrokerDhcp\msbrowser.exe
| MD5 | 3d428539f2cddf97abfe6586df2f2c1d |
| SHA1 | e828475a8e5ea8db3854cb66f0102c6532a0a997 |
| SHA256 | 58a180ba10aad7f5a7c9b86b2f93213fde5e2f4816393d7a19ddc9202bc1f7a4 |
| SHA512 | 325d96a63e0ddec4bb2c4c9fafa28b38c6961af0f4c282763eb82677037a50971ac2770c8277a11a80d7853218cc560600c18f7d201f23057387e0a858d05ccc |
memory/2200-12-0x00007FFBF20B3000-0x00007FFBF20B5000-memory.dmp
memory/2200-13-0x00000000002D0000-0x00000000003A6000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\tKvCd3mm0w.bat
| MD5 | 4107ec216c41040becf6bef77a6801d7 |
| SHA1 | 2554eb8fe971cc56cb96655af7fd3b77e5da24e6 |
| SHA256 | 5144cb03f52535e7201c98a9c143b719595353b6c202e7fb605022a7521dc98c |
| SHA512 | 5e67cef2e1f0dabd6eefdb66c12e6045865d322e47af54f4523d062398599e443e0933c4b50035d313c60fee70bea4f0c78fa5be903f754d7a26bc9d510b448a |