Analysis Overview
SHA256
d675f72b0bc010f74a28dfb3401dd69dbae5d21a55624a827fa70d1041367d13
Threat Level: Known bad
The file d675f72b0bc010f74a28dfb3401dd69dbae5d21a55624a827fa70d1041367d13.exe was found to be: Known bad.
Malicious Activity Summary
Dcrat family
DcRat
Process spawned unexpected child process
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
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Scheduled Task/Job: Scheduled Task
Uses Task Scheduler COM API
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-06-18 19:11
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
2024-06-18 19:11
Reported
2024-06-18 19:14
Platform
win7-20240611-en
Max time kernel
118s
Max time network
123s
Command Line
Signatures
DcRat
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:\chainSurrogate\browsersvc.exe | N/A |
| N/A | N/A | C:\Recovery\0f2bee02-28a9-11ef-983f-46d84c032646\lsm.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 opened for modification | C:\Program Files\Windows Sidebar\Gadgets\RSSFeeds.Gadget\csrss.exe | C:\chainSurrogate\browsersvc.exe | N/A |
| File created | C:\Program Files\Windows Sidebar\Gadgets\RSSFeeds.Gadget\886983d96e3d3e | C:\chainSurrogate\browsersvc.exe | N/A |
| File created | C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\6203df4a6bafc7 | C:\chainSurrogate\browsersvc.exe | N/A |
| File created | C:\Program Files (x86)\Windows Portable Devices\886983d96e3d3e | C:\chainSurrogate\browsersvc.exe | N/A |
| File created | C:\Program Files (x86)\Common Files\DESIGNER\886983d96e3d3e | C:\chainSurrogate\browsersvc.exe | N/A |
| File created | C:\Program Files\Windows Sidebar\Gadgets\RSSFeeds.Gadget\csrss.exe | C:\chainSurrogate\browsersvc.exe | N/A |
| File created | C:\Program Files (x86)\Microsoft Office\Templates\1033\FAX\6ccacd8608530f | C:\chainSurrogate\browsersvc.exe | N/A |
| File created | C:\Program Files (x86)\Mozilla Maintenance Service\logs\services.exe | C:\chainSurrogate\browsersvc.exe | N/A |
| File created | C:\Program Files (x86)\Windows Portable Devices\csrss.exe | C:\chainSurrogate\browsersvc.exe | N/A |
| File created | C:\Program Files (x86)\Mozilla Maintenance Service\logs\c5b4cb5e9653cc | C:\chainSurrogate\browsersvc.exe | N/A |
| File created | C:\Program Files (x86)\Microsoft Office\Templates\1033\FAX\Idle.exe | C:\chainSurrogate\browsersvc.exe | N/A |
| File created | C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\lsass.exe | C:\chainSurrogate\browsersvc.exe | N/A |
| File created | C:\Program Files (x86)\Common Files\DESIGNER\csrss.exe | C:\chainSurrogate\browsersvc.exe | N/A |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\LiveKernelReports\c5b4cb5e9653cc | C:\chainSurrogate\browsersvc.exe | N/A |
| File created | C:\Windows\AppCompat\Programs\System.exe | C:\chainSurrogate\browsersvc.exe | N/A |
| File created | C:\Windows\AppCompat\Programs\27d1bcfc3c54e0 | C:\chainSurrogate\browsersvc.exe | N/A |
| File created | C:\Windows\CSC\v2.0.6\Idle.exe | C:\chainSurrogate\browsersvc.exe | N/A |
| File created | C:\Windows\LiveKernelReports\services.exe | C:\chainSurrogate\browsersvc.exe | N/A |
Enumerates physical storage devices
Scheduled Task/Job: Scheduled Task
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\chainSurrogate\browsersvc.exe | N/A |
| N/A | N/A | C:\chainSurrogate\browsersvc.exe | N/A |
| N/A | N/A | C:\chainSurrogate\browsersvc.exe | N/A |
| N/A | N/A | C:\chainSurrogate\browsersvc.exe | N/A |
| N/A | N/A | C:\chainSurrogate\browsersvc.exe | N/A |
| N/A | N/A | C:\Recovery\0f2bee02-28a9-11ef-983f-46d84c032646\lsm.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\chainSurrogate\browsersvc.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Recovery\0f2bee02-28a9-11ef-983f-46d84c032646\lsm.exe | N/A |
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Processes
C:\Users\Admin\AppData\Local\Temp\d675f72b0bc010f74a28dfb3401dd69dbae5d21a55624a827fa70d1041367d13.exe
"C:\Users\Admin\AppData\Local\Temp\d675f72b0bc010f74a28dfb3401dd69dbae5d21a55624a827fa70d1041367d13.exe"
C:\Windows\SysWOW64\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\chainSurrogate\vdfN6ZiS0svPJatLSFe.vbe"
C:\Windows\SysWOW64\cmd.exe
cmd /c ""C:\chainSurrogate\JOucOkolgtw8nKLZO9UO2eSMaA.bat" "
C:\chainSurrogate\browsersvc.exe
"C:\chainSurrogate\browsersvc.exe"
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 9 /tr "'C:\Program Files\Windows Sidebar\Gadgets\RSSFeeds.Gadget\csrss.exe'" /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "csrss" /sc ONLOGON /tr "'C:\Program Files\Windows Sidebar\Gadgets\RSSFeeds.Gadget\csrss.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 10 /tr "'C:\Program Files\Windows Sidebar\Gadgets\RSSFeeds.Gadget\csrss.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "IdleI" /sc MINUTE /mo 14 /tr "'C:\Program Files (x86)\Microsoft Office\Templates\1033\FAX\Idle.exe'" /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "Idle" /sc ONLOGON /tr "'C:\Program Files (x86)\Microsoft Office\Templates\1033\FAX\Idle.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "IdleI" /sc MINUTE /mo 13 /tr "'C:\Program Files (x86)\Microsoft Office\Templates\1033\FAX\Idle.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "lsml" /sc MINUTE /mo 7 /tr "'C:\Recovery\0f2bee02-28a9-11ef-983f-46d84c032646\lsm.exe'" /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "lsm" /sc ONLOGON /tr "'C:\Recovery\0f2bee02-28a9-11ef-983f-46d84c032646\lsm.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "lsml" /sc MINUTE /mo 6 /tr "'C:\Recovery\0f2bee02-28a9-11ef-983f-46d84c032646\lsm.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "SystemS" /sc MINUTE /mo 11 /tr "'C:\Users\All Users\Documents\System.exe'" /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "System" /sc ONLOGON /tr "'C:\Users\All Users\Documents\System.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "SystemS" /sc MINUTE /mo 6 /tr "'C:\Users\All Users\Documents\System.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "browsersvcb" /sc MINUTE /mo 12 /tr "'C:\Users\Default User\browsersvc.exe'" /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "browsersvc" /sc ONLOGON /tr "'C:\Users\Default User\browsersvc.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "browsersvcb" /sc MINUTE /mo 7 /tr "'C:\Users\Default User\browsersvc.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "winlogonw" /sc MINUTE /mo 11 /tr "'C:\MSOCache\All Users\{90140000-0018-0409-0000-0000000FF1CE}-C\winlogon.exe'" /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "winlogon" /sc ONLOGON /tr "'C:\MSOCache\All Users\{90140000-0018-0409-0000-0000000FF1CE}-C\winlogon.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "winlogonw" /sc MINUTE /mo 9 /tr "'C:\MSOCache\All Users\{90140000-0018-0409-0000-0000000FF1CE}-C\winlogon.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "servicess" /sc MINUTE /mo 6 /tr "'C:\Windows\LiveKernelReports\services.exe'" /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "services" /sc ONLOGON /tr "'C:\Windows\LiveKernelReports\services.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "servicess" /sc MINUTE /mo 14 /tr "'C:\Windows\LiveKernelReports\services.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "lsassl" /sc MINUTE /mo 13 /tr "'C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\lsass.exe'" /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "lsass" /sc ONLOGON /tr "'C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\lsass.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "lsassl" /sc MINUTE /mo 5 /tr "'C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\lsass.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "servicess" /sc MINUTE /mo 5 /tr "'C:\Program Files (x86)\Mozilla Maintenance Service\logs\services.exe'" /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "services" /sc ONLOGON /tr "'C:\Program Files (x86)\Mozilla Maintenance Service\logs\services.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "servicess" /sc MINUTE /mo 6 /tr "'C:\Program Files (x86)\Mozilla Maintenance Service\logs\services.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "servicess" /sc MINUTE /mo 8 /tr "'C:\MSOCache\All Users\{90140000-0019-0409-0000-0000000FF1CE}-C\services.exe'" /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "services" /sc ONLOGON /tr "'C:\MSOCache\All Users\{90140000-0019-0409-0000-0000000FF1CE}-C\services.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "servicess" /sc MINUTE /mo 12 /tr "'C:\MSOCache\All Users\{90140000-0019-0409-0000-0000000FF1CE}-C\services.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "SystemS" /sc MINUTE /mo 9 /tr "'C:\Windows\AppCompat\Programs\System.exe'" /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "System" /sc ONLOGON /tr "'C:\Windows\AppCompat\Programs\System.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "SystemS" /sc MINUTE /mo 12 /tr "'C:\Windows\AppCompat\Programs\System.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "explorere" /sc MINUTE /mo 11 /tr "'C:\chainSurrogate\explorer.exe'" /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "explorer" /sc ONLOGON /tr "'C:\chainSurrogate\explorer.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "explorere" /sc MINUTE /mo 6 /tr "'C:\chainSurrogate\explorer.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 7 /tr "'C:\Program Files (x86)\Windows Portable Devices\csrss.exe'" /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "csrss" /sc ONLOGON /tr "'C:\Program Files (x86)\Windows Portable Devices\csrss.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 12 /tr "'C:\Program Files (x86)\Windows Portable Devices\csrss.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 7 /tr "'C:\Program Files (x86)\Common Files\DESIGNER\csrss.exe'" /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "csrss" /sc ONLOGON /tr "'C:\Program Files (x86)\Common Files\DESIGNER\csrss.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 7 /tr "'C:\Program Files (x86)\Common Files\DESIGNER\csrss.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 8 /tr "'C:\Users\Default\Downloads\csrss.exe'" /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "csrss" /sc ONLOGON /tr "'C:\Users\Default\Downloads\csrss.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 13 /tr "'C:\Users\Default\Downloads\csrss.exe'" /rl HIGHEST /f
C:\Windows\System32\cmd.exe
"C:\Windows\System32\cmd.exe" /C "C:\Users\Admin\AppData\Local\Temp\jGPM9k18FI.bat"
C:\Windows\system32\w32tm.exe
w32tm /stripchart /computer:localhost /period:5 /dataonly /samples:2
C:\Recovery\0f2bee02-28a9-11ef-983f-46d84c032646\lsm.exe
"C:\Recovery\0f2bee02-28a9-11ef-983f-46d84c032646\lsm.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | host1871899.hostland.pro | udp |
| RU | 185.26.122.81:80 | host1871899.hostland.pro | tcp |
Files
C:\chainSurrogate\vdfN6ZiS0svPJatLSFe.vbe
| MD5 | ee3a4b8d5b9a45ac52fab507fcddb2ae |
| SHA1 | 101a1a475be56c7924374353a9b60d914c0a64f0 |
| SHA256 | c18b8c22abe6c0333b1c9a7e7096f8530b9c75213791df17c67b1dcd609f86c7 |
| SHA512 | 95d9c4fee2b2760e0cf10eb03d69e48ae8b730b1096756d81d4dcdcacb5da88642836ff2c52d64216f3fb0e87cbc611f4f4ee1ec8e46746a38ef2ca1151049b2 |
C:\chainSurrogate\JOucOkolgtw8nKLZO9UO2eSMaA.bat
| MD5 | c4d1668093627b8bad684c203127aea0 |
| SHA1 | 6671bc621c55e507b9d04b2574edf61e392d07ce |
| SHA256 | 71f60eceed543de69425208d9db31d0d5b371792329d7ba45ba384b0327b7c38 |
| SHA512 | 26cb1b5620d4da7b5e39e2ed7010bcd85c1087e9079214a6c2a41c84805ff67d0ce923ee76ef3c444ba2e944dc3f19ae6dd271f399c425aac5ec8c85edb632a2 |
\chainSurrogate\browsersvc.exe
| MD5 | 05cf6d069f5b66212af39c9d6c440cce |
| SHA1 | a0bc239516647e46d964f283698af052cd35bc18 |
| SHA256 | 1481100d64ae0a34fe7d4822c42d4b9e5ce6a870149cef2cd567e0b655867412 |
| SHA512 | 2f764ca77d1270cb55842371640fe35063452fce99b16bb8f1aef6ea6b2561010e231a83679d7b382181a9662b5d26f42523c93e11417e28433457e89556bd9c |
memory/2736-13-0x0000000000F30000-0x0000000001006000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\jGPM9k18FI.bat
| MD5 | e716ce28bd3499dcdea8e00cb0799949 |
| SHA1 | dd8f77861682bde42abc78d4b60f1136a132e79f |
| SHA256 | 5c5b72a78a86f552353ca76744ea748c9518492341d2447e74921b4023036bba |
| SHA512 | d1636c485ee18087e8a392806637a21b413c3ec1c068d3b290e45770f8761c49e3f410f32a1f52ca47842dfbb1ba4f9e3069f1fc4779bc472eef24fa011e2567 |
memory/880-51-0x00000000003A0000-0x0000000000476000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-06-18 19:11
Reported
2024-06-18 19:14
Platform
win10v2004-20240226-en
Max time kernel
143s
Max time network
156s
Command Line
Signatures
DcRat
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 |
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-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\d675f72b0bc010f74a28dfb3401dd69dbae5d21a55624a827fa70d1041367d13.exe | N/A |
| Key value queried | \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation | C:\Windows\SysWOW64\WScript.exe | N/A |
| Key value queried | \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation | C:\chainSurrogate\browsersvc.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\chainSurrogate\browsersvc.exe | N/A |
| N/A | N/A | C:\odt\csrss.exe | N/A |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\bcastdvr\sppsvc.exe | C:\chainSurrogate\browsersvc.exe | N/A |
| File opened for modification | C:\Windows\bcastdvr\sppsvc.exe | C:\chainSurrogate\browsersvc.exe | N/A |
| File created | C:\Windows\bcastdvr\0a1fd5f707cd16 | C:\chainSurrogate\browsersvc.exe | N/A |
Enumerates physical storage devices
Modifies registry class
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000_Classes\Local Settings | C:\Users\Admin\AppData\Local\Temp\d675f72b0bc010f74a28dfb3401dd69dbae5d21a55624a827fa70d1041367d13.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 |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\chainSurrogate\browsersvc.exe | N/A |
| N/A | N/A | C:\odt\csrss.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\chainSurrogate\browsersvc.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\odt\csrss.exe | N/A |
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Processes
C:\Users\Admin\AppData\Local\Temp\d675f72b0bc010f74a28dfb3401dd69dbae5d21a55624a827fa70d1041367d13.exe
"C:\Users\Admin\AppData\Local\Temp\d675f72b0bc010f74a28dfb3401dd69dbae5d21a55624a827fa70d1041367d13.exe"
C:\Windows\SysWOW64\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\chainSurrogate\vdfN6ZiS0svPJatLSFe.vbe"
C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\chainSurrogate\JOucOkolgtw8nKLZO9UO2eSMaA.bat" "
C:\chainSurrogate\browsersvc.exe
"C:\chainSurrogate\browsersvc.exe"
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "sppsvcs" /sc MINUTE /mo 6 /tr "'C:\Windows\bcastdvr\sppsvc.exe'" /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "sppsvc" /sc ONLOGON /tr "'C:\Windows\bcastdvr\sppsvc.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "sppsvcs" /sc MINUTE /mo 6 /tr "'C:\Windows\bcastdvr\sppsvc.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "conhostc" /sc MINUTE /mo 8 /tr "'C:\odt\conhost.exe'" /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "conhost" /sc ONLOGON /tr "'C:\odt\conhost.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "conhostc" /sc MINUTE /mo 12 /tr "'C:\odt\conhost.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 7 /tr "'C:\odt\csrss.exe'" /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "csrss" /sc ONLOGON /tr "'C:\odt\csrss.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 8 /tr "'C:\odt\csrss.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "sppsvcs" /sc MINUTE /mo 7 /tr "'C:\chainSurrogate\sppsvc.exe'" /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "sppsvc" /sc ONLOGON /tr "'C:\chainSurrogate\sppsvc.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "sppsvcs" /sc MINUTE /mo 6 /tr "'C:\chainSurrogate\sppsvc.exe'" /rl HIGHEST /f
C:\odt\csrss.exe
"C:\odt\csrss.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=3712 --field-trial-handle=1928,i,13242902252791919845,10377620236057253993,262144 --variations-seed-version /prefetch:8
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 209.205.72.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.214.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 76.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | host1871899.hostland.pro | udp |
| RU | 185.26.122.81:80 | host1871899.hostland.pro | tcp |
| US | 8.8.8.8:53 | 81.122.26.185.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 97.17.167.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 157.123.68.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 206.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 24.121.18.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 104.219.191.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 217.106.137.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 241.197.17.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 11.227.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 249.197.17.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | chromewebstore.googleapis.com | udp |
| US | 8.8.8.8:53 | chromewebstore.googleapis.com | udp |
| GB | 172.217.16.234:443 | chromewebstore.googleapis.com | tcp |
| GB | 172.217.16.234:443 | chromewebstore.googleapis.com | tcp |
| US | 8.8.8.8:53 | 234.16.217.172.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 1.173.189.20.in-addr.arpa | udp |
Files
C:\chainSurrogate\vdfN6ZiS0svPJatLSFe.vbe
| MD5 | ee3a4b8d5b9a45ac52fab507fcddb2ae |
| SHA1 | 101a1a475be56c7924374353a9b60d914c0a64f0 |
| SHA256 | c18b8c22abe6c0333b1c9a7e7096f8530b9c75213791df17c67b1dcd609f86c7 |
| SHA512 | 95d9c4fee2b2760e0cf10eb03d69e48ae8b730b1096756d81d4dcdcacb5da88642836ff2c52d64216f3fb0e87cbc611f4f4ee1ec8e46746a38ef2ca1151049b2 |
C:\chainSurrogate\JOucOkolgtw8nKLZO9UO2eSMaA.bat
| MD5 | c4d1668093627b8bad684c203127aea0 |
| SHA1 | 6671bc621c55e507b9d04b2574edf61e392d07ce |
| SHA256 | 71f60eceed543de69425208d9db31d0d5b371792329d7ba45ba384b0327b7c38 |
| SHA512 | 26cb1b5620d4da7b5e39e2ed7010bcd85c1087e9079214a6c2a41c84805ff67d0ce923ee76ef3c444ba2e944dc3f19ae6dd271f399c425aac5ec8c85edb632a2 |
C:\chainSurrogate\browsersvc.exe
| MD5 | 05cf6d069f5b66212af39c9d6c440cce |
| SHA1 | a0bc239516647e46d964f283698af052cd35bc18 |
| SHA256 | 1481100d64ae0a34fe7d4822c42d4b9e5ce6a870149cef2cd567e0b655867412 |
| SHA512 | 2f764ca77d1270cb55842371640fe35063452fce99b16bb8f1aef6ea6b2561010e231a83679d7b382181a9662b5d26f42523c93e11417e28433457e89556bd9c |
memory/3660-12-0x00007FF9EA043000-0x00007FF9EA045000-memory.dmp
memory/3660-13-0x0000000000F40000-0x0000000001016000-memory.dmp