Analysis Overview
SHA256
d675f72b0bc010f74a28dfb3401dd69dbae5d21a55624a827fa70d1041367d13
Threat Level: Known bad
The file 23a1767d4e77693bd46f3abfcf10e4d7.exe was found to be: Known bad.
Malicious Activity Summary
DcRat
DCRat payload
Dcrat family
Process spawned unexpected child process
DCRat payload
Loads dropped DLL
Checks computer location settings
Executes dropped EXE
Drops file in Windows directory
Drops file in Program Files directory
Enumerates physical storage devices
Unsigned PE
Modifies registry class
Creates scheduled task(s)
Suspicious use of WriteProcessMemory
Suspicious use of AdjustPrivilegeToken
Uses Task Scheduler COM API
Suspicious behavior: EnumeratesProcesses
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-06-17 04:06
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
2024-06-17 04:06
Reported
2024-06-17 04:08
Platform
win7-20240220-en
Max time kernel
122s
Max time network
127s
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 |
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:\Program Files (x86)\Windows Photo Viewer\it-IT\System.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 (x86)\Windows Photo Viewer\ja-JP\smss.exe | C:\chainSurrogate\browsersvc.exe | N/A |
| File opened for modification | C:\Program Files (x86)\MSBuild\Microsoft\smss.exe | C:\chainSurrogate\browsersvc.exe | N/A |
| File created | C:\Program Files (x86)\Windows Portable Devices\explorer.exe | C:\chainSurrogate\browsersvc.exe | N/A |
| File created | C:\Program Files (x86)\Windows Portable Devices\7a0fd90576e088 | C:\chainSurrogate\browsersvc.exe | N/A |
| File created | C:\Program Files (x86)\Windows Photo Viewer\it-IT\27d1bcfc3c54e0 | C:\chainSurrogate\browsersvc.exe | N/A |
| File created | C:\Program Files\Java\System.exe | C:\chainSurrogate\browsersvc.exe | N/A |
| File created | C:\Program Files\Java\27d1bcfc3c54e0 | C:\chainSurrogate\browsersvc.exe | N/A |
| File created | C:\Program Files (x86)\Windows Photo Viewer\ja-JP\69ddcba757bf72 | C:\chainSurrogate\browsersvc.exe | N/A |
| File created | C:\Program Files (x86)\MSBuild\Microsoft\smss.exe | C:\chainSurrogate\browsersvc.exe | N/A |
| File created | C:\Program Files (x86)\MSBuild\Microsoft\69ddcba757bf72 | C:\chainSurrogate\browsersvc.exe | N/A |
| File created | C:\Program Files (x86)\Windows Photo Viewer\it-IT\System.exe | C:\chainSurrogate\browsersvc.exe | N/A |
Enumerates physical storage devices
Creates scheduled task(s)
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:\Program Files (x86)\Windows Photo Viewer\it-IT\System.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:\Program Files (x86)\Windows Photo Viewer\it-IT\System.exe | N/A |
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Processes
C:\Users\Admin\AppData\Local\Temp\23a1767d4e77693bd46f3abfcf10e4d7.exe
"C:\Users\Admin\AppData\Local\Temp\23a1767d4e77693bd46f3abfcf10e4d7.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 "smsss" /sc MINUTE /mo 11 /tr "'C:\Program Files (x86)\MSBuild\Microsoft\smss.exe'" /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "smss" /sc ONLOGON /tr "'C:\Program Files (x86)\MSBuild\Microsoft\smss.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "smsss" /sc MINUTE /mo 7 /tr "'C:\Program Files (x86)\MSBuild\Microsoft\smss.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "SystemS" /sc MINUTE /mo 13 /tr "'C:\Program Files (x86)\Windows Photo Viewer\it-IT\System.exe'" /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "System" /sc ONLOGON /tr "'C:\Program Files (x86)\Windows Photo Viewer\it-IT\System.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "SystemS" /sc MINUTE /mo 9 /tr "'C:\Program Files (x86)\Windows Photo Viewer\it-IT\System.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "explorere" /sc MINUTE /mo 14 /tr "'C:\Program Files (x86)\Windows Portable Devices\explorer.exe'" /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "explorer" /sc ONLOGON /tr "'C:\Program Files (x86)\Windows Portable Devices\explorer.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "explorere" /sc MINUTE /mo 9 /tr "'C:\Program Files (x86)\Windows Portable Devices\explorer.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "SystemS" /sc MINUTE /mo 9 /tr "'C:\MSOCache\All Users\System.exe'" /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "System" /sc ONLOGON /tr "'C:\MSOCache\All Users\System.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "SystemS" /sc MINUTE /mo 9 /tr "'C:\MSOCache\All Users\System.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "servicess" /sc MINUTE /mo 9 /tr "'C:\chainSurrogate\services.exe'" /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "services" /sc ONLOGON /tr "'C:\chainSurrogate\services.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "servicess" /sc MINUTE /mo 7 /tr "'C:\chainSurrogate\services.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "explorere" /sc MINUTE /mo 7 /tr "'C:\Recovery\84917bc2-d02e-11ee-b7c7-ea6b8212ffd3\explorer.exe'" /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "explorer" /sc ONLOGON /tr "'C:\Recovery\84917bc2-d02e-11ee-b7c7-ea6b8212ffd3\explorer.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "explorere" /sc MINUTE /mo 14 /tr "'C:\Recovery\84917bc2-d02e-11ee-b7c7-ea6b8212ffd3\explorer.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "SystemS" /sc MINUTE /mo 5 /tr "'C:\Program Files\Java\System.exe'" /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "System" /sc ONLOGON /tr "'C:\Program Files\Java\System.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "SystemS" /sc MINUTE /mo 14 /tr "'C:\Program Files\Java\System.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "smsss" /sc MINUTE /mo 13 /tr "'C:\Program Files (x86)\Windows Photo Viewer\ja-JP\smss.exe'" /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "smss" /sc ONLOGON /tr "'C:\Program Files (x86)\Windows Photo Viewer\ja-JP\smss.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "smsss" /sc MINUTE /mo 13 /tr "'C:\Program Files (x86)\Windows Photo Viewer\ja-JP\smss.exe'" /rl HIGHEST /f
C:\Windows\System32\cmd.exe
"C:\Windows\System32\cmd.exe" /C "C:\Users\Admin\AppData\Local\Temp\57mvtxYYNa.bat"
C:\Windows\system32\w32tm.exe
w32tm /stripchart /computer:localhost /period:5 /dataonly /samples:2
C:\Program Files (x86)\Windows Photo Viewer\it-IT\System.exe
"C:\Program Files (x86)\Windows Photo Viewer\it-IT\System.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/2940-13-0x0000000000C20000-0x0000000000CF6000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\57mvtxYYNa.bat
| MD5 | b6bb3cbe688e764e277b8741f0e675fd |
| SHA1 | 1cb4160434c7b8631a6f17b4ea825938d26aad56 |
| SHA256 | c3182ed28e95201eb1d4fc0a949a36722dfaa5c4856de1e25f631611f586584a |
| SHA512 | 20fdbdb77f62b3a997ee8717a1f884f764991bd6506d86ff336cb8af8f1a907a7e5b7f37f2d5da9ecb44407d129ba1b5b3af3cc9ef42cb6362a36497e767260d |
memory/392-37-0x0000000000A40000-0x0000000000B16000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-06-17 04:06
Reported
2024-06-17 04:08
Platform
win10v2004-20240611-en
Max time kernel
135s
Max time network
140s
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 |
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-1-5-21-2080292272-204036150-2159171770-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\23a1767d4e77693bd46f3abfcf10e4d7.exe | N/A |
| Key value queried | \REGISTRY\USER\S-1-5-21-2080292272-204036150-2159171770-1000\Control Panel\International\Geo\Nation | C:\Windows\SysWOW64\WScript.exe | N/A |
| Key value queried | \REGISTRY\USER\S-1-5-21-2080292272-204036150-2159171770-1000\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:\Users\Default User\SearchApp.exe | N/A |
Drops file in Program Files directory
| Description | Indicator | Process | Target |
| File created | C:\Program Files (x86)\Windows Photo Viewer\ja-JP\9e8d7a4ca61bd9 | C:\chainSurrogate\browsersvc.exe | N/A |
| File created | C:\Program Files\Windows Sidebar\dwm.exe | C:\chainSurrogate\browsersvc.exe | N/A |
| File created | C:\Program Files\Windows Sidebar\6cb0b6c459d5d3 | C:\chainSurrogate\browsersvc.exe | N/A |
| File created | C:\Program Files\Windows Sidebar\smss.exe | C:\chainSurrogate\browsersvc.exe | N/A |
| File created | C:\Program Files\Windows Sidebar\69ddcba757bf72 | C:\chainSurrogate\browsersvc.exe | N/A |
| File created | C:\Program Files\Common Files\System\msadc\es-ES\RuntimeBroker.exe | C:\chainSurrogate\browsersvc.exe | N/A |
| File created | C:\Program Files\Common Files\System\msadc\es-ES\9e8d7a4ca61bd9 | C:\chainSurrogate\browsersvc.exe | N/A |
| File created | C:\Program Files (x86)\Windows Photo Viewer\ja-JP\RuntimeBroker.exe | C:\chainSurrogate\browsersvc.exe | N/A |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\schemas\EAPMethods\StartMenuExperienceHost.exe | C:\chainSurrogate\browsersvc.exe | N/A |
Enumerates physical storage devices
Creates scheduled task(s)
Modifies registry class
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\USER\S-1-5-21-2080292272-204036150-2159171770-1000_Classes\Local Settings | C:\chainSurrogate\browsersvc.exe | N/A |
| Key created | \REGISTRY\USER\S-1-5-21-2080292272-204036150-2159171770-1000_Classes\Local Settings | C:\Users\Admin\AppData\Local\Temp\23a1767d4e77693bd46f3abfcf10e4d7.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:\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:\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:\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:\chainSurrogate\browsersvc.exe | N/A |
| N/A | N/A | C:\Users\Default User\SearchApp.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:\Users\Default User\SearchApp.exe | N/A |
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Processes
C:\Users\Admin\AppData\Local\Temp\23a1767d4e77693bd46f3abfcf10e4d7.exe
"C:\Users\Admin\AppData\Local\Temp\23a1767d4e77693bd46f3abfcf10e4d7.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 "taskhostwt" /sc MINUTE /mo 12 /tr "'C:\Users\Default\taskhostw.exe'" /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "taskhostw" /sc ONLOGON /tr "'C:\Users\Default\taskhostw.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "taskhostwt" /sc MINUTE /mo 7 /tr "'C:\Users\Default\taskhostw.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "SppExtComObjS" /sc MINUTE /mo 14 /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 13 /tr "'C:\Recovery\WindowsRE\SppExtComObj.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "dwmd" /sc MINUTE /mo 9 /tr "'C:\Recovery\WindowsRE\dwm.exe'" /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "dwm" /sc ONLOGON /tr "'C:\Recovery\WindowsRE\dwm.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "dwmd" /sc MINUTE /mo 13 /tr "'C:\Recovery\WindowsRE\dwm.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "RuntimeBrokerR" /sc MINUTE /mo 11 /tr "'C:\Program Files\Common Files\System\msadc\es-ES\RuntimeBroker.exe'" /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "RuntimeBroker" /sc ONLOGON /tr "'C:\Program Files\Common Files\System\msadc\es-ES\RuntimeBroker.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "RuntimeBrokerR" /sc MINUTE /mo 6 /tr "'C:\Program Files\Common Files\System\msadc\es-ES\RuntimeBroker.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "RuntimeBrokerR" /sc MINUTE /mo 10 /tr "'C:\Program Files (x86)\Windows Photo Viewer\ja-JP\RuntimeBroker.exe'" /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "RuntimeBroker" /sc ONLOGON /tr "'C:\Program Files (x86)\Windows Photo Viewer\ja-JP\RuntimeBroker.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "RuntimeBrokerR" /sc MINUTE /mo 12 /tr "'C:\Program Files (x86)\Windows Photo Viewer\ja-JP\RuntimeBroker.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "dwmd" /sc MINUTE /mo 14 /tr "'C:\Program Files\Windows Sidebar\dwm.exe'" /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "dwm" /sc ONLOGON /tr "'C:\Program Files\Windows Sidebar\dwm.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "dwmd" /sc MINUTE /mo 14 /tr "'C:\Program Files\Windows Sidebar\dwm.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "unsecappu" /sc MINUTE /mo 5 /tr "'C:\Recovery\WindowsRE\unsecapp.exe'" /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "unsecapp" /sc ONLOGON /tr "'C:\Recovery\WindowsRE\unsecapp.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "unsecappu" /sc MINUTE /mo 6 /tr "'C:\Recovery\WindowsRE\unsecapp.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "TextInputHostT" /sc MINUTE /mo 13 /tr "'C:\chainSurrogate\TextInputHost.exe'" /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "TextInputHost" /sc ONLOGON /tr "'C:\chainSurrogate\TextInputHost.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "TextInputHostT" /sc MINUTE /mo 13 /tr "'C:\chainSurrogate\TextInputHost.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "smsss" /sc MINUTE /mo 14 /tr "'C:\Program Files\Windows Sidebar\smss.exe'" /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "smss" /sc ONLOGON /tr "'C:\Program Files\Windows Sidebar\smss.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "smsss" /sc MINUTE /mo 11 /tr "'C:\Program Files\Windows Sidebar\smss.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "dllhostd" /sc MINUTE /mo 6 /tr "'C:\Recovery\WindowsRE\dllhost.exe'" /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "dllhost" /sc ONLOGON /tr "'C:\Recovery\WindowsRE\dllhost.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "dllhostd" /sc MINUTE /mo 5 /tr "'C:\Recovery\WindowsRE\dllhost.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "sysmons" /sc MINUTE /mo 14 /tr "'C:\Recovery\WindowsRE\sysmon.exe'" /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "sysmon" /sc ONLOGON /tr "'C:\Recovery\WindowsRE\sysmon.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "sysmons" /sc MINUTE /mo 5 /tr "'C:\Recovery\WindowsRE\sysmon.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "dllhostd" /sc MINUTE /mo 5 /tr "'C:\chainSurrogate\dllhost.exe'" /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "dllhost" /sc ONLOGON /tr "'C:\chainSurrogate\dllhost.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "dllhostd" /sc MINUTE /mo 10 /tr "'C:\chainSurrogate\dllhost.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "SearchAppS" /sc MINUTE /mo 13 /tr "'C:\Users\Default User\SearchApp.exe'" /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "SearchApp" /sc ONLOGON /tr "'C:\Users\Default User\SearchApp.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "SearchAppS" /sc MINUTE /mo 12 /tr "'C:\Users\Default User\SearchApp.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "SearchAppS" /sc MINUTE /mo 9 /tr "'C:\Users\All Users\Microsoft OneDrive\SearchApp.exe'" /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "SearchApp" /sc ONLOGON /tr "'C:\Users\All Users\Microsoft OneDrive\SearchApp.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "SearchAppS" /sc MINUTE /mo 9 /tr "'C:\Users\All Users\Microsoft OneDrive\SearchApp.exe'" /rl HIGHEST /f
C:\Windows\System32\cmd.exe
"C:\Windows\System32\cmd.exe" /C "C:\Users\Admin\AppData\Local\Temp\Adb3B9Emo8.bat"
C:\Windows\system32\w32tm.exe
w32tm /stripchart /computer:localhost /period:5 /dataonly /samples:2
C:\Users\Default User\SearchApp.exe
"C:\Users\Default User\SearchApp.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | g.bing.com | udp |
| US | 13.107.21.237:443 | g.bing.com | tcp |
| NL | 23.62.61.97:443 | www.bing.com | tcp |
| NL | 23.62.61.97:443 | www.bing.com | tcp |
| US | 8.8.8.8:53 | 76.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 237.21.107.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.214.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 97.61.62.23.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 | 183.59.114.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 171.39.242.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 240.221.184.93.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 13.227.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 123.10.44.20.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/3704-12-0x00007FFA8FFB3000-0x00007FFA8FFB5000-memory.dmp
memory/3704-13-0x0000000000820000-0x00000000008F6000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\Adb3B9Emo8.bat
| MD5 | e9bbc2ed8f4a8af47411badf03358e17 |
| SHA1 | a270769d4722b19766b1aaa90cae496d00d6830c |
| SHA256 | d14bae214541bfa8860ee3ca5a4a96e2b07dbf0400bed250a66380559ad74045 |
| SHA512 | 380ca4ec306635b399a21294b731863c7035cf3f65f99e2bc0e0b75cc38f2c8dd20f239103c5e40933364c7dcc9efdcb4ffb326baa41d69cb52c66909ca3a9fe |