Analysis Overview
SHA256
7c00050f9a74c897dc0b917b07898b14150329571584ed3d7928d7c59b974c2b
Threat Level: Known bad
The file 05fc0bdf63407c4bf2aa13262366cec5.exe was found to be: Known bad.
Malicious Activity Summary
Modifies WinLogon for persistence
DcRat
Dcrat family
DCRat payload
Process spawned unexpected child process
DCRat payload
Loads dropped DLL
Checks computer location settings
Executes dropped EXE
Adds Run key to start application
Legitimate hosting services abused for malware hosting/C2
Unsigned PE
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
Modifies registry class
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: EnumeratesProcesses
Scheduled Task/Job: Scheduled Task
Uses Task Scheduler COM API
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-07-22 06:30
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
2024-07-22 06:30
Reported
2024-07-22 06:32
Platform
win7-20240705-en
Max time kernel
127s
Max time network
150s
Command Line
Signatures
DcRat
Modifies WinLogon for persistence
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:/Users/Admin/AppData/Local/\\WmiPrvSE.exe\"" | C:\browserperfMonitor\portProviderRef.exe | N/A |
Process spawned unexpected child process
| Description | Indicator | Process | Target |
| Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process | N/A | C:\Windows\system32\schtasks.exe | |
| Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process | N/A | C:\Windows\system32\schtasks.exe | |
| Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process | N/A | C:\Windows\system32\schtasks.exe |
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:\browserperfMonitor\portProviderRef.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\WmiPrvSE.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\cmd.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\cmd.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-1385883288-3042840365-2734249351-1000\Software\Microsoft\Windows\CurrentVersion\Run\WmiPrvSE = "\"C:/Users/Admin/AppData/Local/\\WmiPrvSE.exe\"" | C:\browserperfMonitor\portProviderRef.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\WmiPrvSE = "\"C:/Users/Admin/AppData/Local/\\WmiPrvSE.exe\"" | C:\browserperfMonitor\portProviderRef.exe | N/A |
Legitimate hosting services abused for malware hosting/C2
| Description | Indicator | Process | Target |
| N/A | pastebin.com | N/A | N/A |
| N/A | pastebin.com | N/A | N/A |
Enumerates physical storage devices
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 |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\browserperfMonitor\portProviderRef.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\WmiPrvSE.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\WmiPrvSE.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\WmiPrvSE.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\WmiPrvSE.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\WmiPrvSE.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\WmiPrvSE.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\WmiPrvSE.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\WmiPrvSE.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\WmiPrvSE.exe | N/A |
Suspicious behavior: GetForegroundWindowSpam
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\WmiPrvSE.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\browserperfMonitor\portProviderRef.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\WmiPrvSE.exe | N/A |
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Processes
C:\Users\Admin\AppData\Local\Temp\05fc0bdf63407c4bf2aa13262366cec5.exe
"C:\Users\Admin\AppData\Local\Temp\05fc0bdf63407c4bf2aa13262366cec5.exe"
C:\Windows\SysWOW64\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\browserperfMonitor\vkP8jBMFLUV3sBPqx5nb72wkkbdxGy.vbe"
C:\Windows\SysWOW64\cmd.exe
cmd /c ""C:\browserperfMonitor\Djd9PDHmb.bat" "
C:\browserperfMonitor\portProviderRef.exe
"C:\browserperfMonitor\portProviderRef.exe"
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "WmiPrvSEW" /sc MINUTE /mo 14 /tr "'C:/Users/Admin/AppData/Local/\WmiPrvSE.exe'" /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "WmiPrvSE" /sc ONLOGON /tr "'C:/Users/Admin/AppData/Local/\WmiPrvSE.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "WmiPrvSEW" /sc MINUTE /mo 6 /tr "'C:/Users/Admin/AppData/Local/\WmiPrvSE.exe'" /rl HIGHEST /f
C:\Windows\System32\cmd.exe
"C:\Windows\System32\cmd.exe" /C "C:\Users\Admin\AppData\Local\Temp\XlfNLVjqje.bat"
C:\Windows\system32\w32tm.exe
w32tm /stripchart /computer:localhost /period:5 /dataonly /samples:2
C:\Users\Admin\AppData\Local\WmiPrvSE.exe
"C:/Users/Admin/AppData/Local/\WmiPrvSE.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | pastebin.com | udp |
| US | 104.20.4.235:443 | pastebin.com | tcp |
| US | 8.8.8.8:53 | f1006727.xsph.ru | udp |
| RU | 141.8.192.151:80 | f1006727.xsph.ru | tcp |
| RU | 141.8.192.151:80 | f1006727.xsph.ru | tcp |
| RU | 141.8.192.151:80 | f1006727.xsph.ru | tcp |
Files
C:\browserperfMonitor\vkP8jBMFLUV3sBPqx5nb72wkkbdxGy.vbe
| MD5 | b7a2b70763db60fd1a9698cc2f1673b5 |
| SHA1 | 233ef75d111f6b43cc8d2cd0d9e84479d04d2e2e |
| SHA256 | 2ed7cb88c0f405254bc9051c1fb58477bb7d046f59d94c7ec1fe7b03448751f7 |
| SHA512 | 1c8c757064e8b1ada32149a9d2d08ecf75d3936055c5f7d4d43dd82bcbfefbb00c1f038e02e935de6713ced80e6026c9185875f4402d760842bfc804edbef74b |
C:\browserperfMonitor\Djd9PDHmb.bat
| MD5 | e6c63fa184d2f4c5d38e9b525bfddb81 |
| SHA1 | feb5e4b45154422a4e84dfcdc2279d3cb75901ff |
| SHA256 | ce100b5fc38b08ad9df71883aea94f49083eb8bbec1ddc7c3a5f3c6a7514ec5b |
| SHA512 | 595fd643b0caaabb87fda59acd1fcd3bd953beb7b6e334e1724fd3d33fcc86d854e70d8bf080cac097eb3ddf180c95d0b9773f25aadfd66c1759adc5b2b7fe69 |
C:\browserperfMonitor\portProviderRef.exe
| MD5 | 0d11a32c038c7f303ad3c020717c007d |
| SHA1 | fffea33c9efe66d4c343d926e30aa114e5d5967d |
| SHA256 | 246bbbec6cc0c1fa290496f764d38451b8f0b64d3ff08f587e0814fd49198757 |
| SHA512 | 1afd437ee901fa934a7c425bed6a95b4b3cd303c3383e99ded4d4ef38e0e758d82febbf2030a2a7b3af131f03e1bf8d9cedf326cc221ef57e733e5c97cb24ff7 |
memory/2140-13-0x0000000000200000-0x0000000000256000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\XlfNLVjqje.bat
| MD5 | e19eea5bf181167f5e9c9e2249b20e51 |
| SHA1 | 7afeb7688764f604335b545099113fc199cf35ef |
| SHA256 | 4a5d0803e901679dc4502c3ebee31bff0fa92bcc6ac3ef2a688b1805bccaa68f |
| SHA512 | e2e213e8d29b9349ecbd87eca9917f30ff5ca9188f43e55a256ace0903c71ea6f44903a2c5b474f05484701f71334305cdeaa88eb2d8a00c06ebfd9d02a402f5 |
memory/2600-23-0x0000000000830000-0x0000000000886000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-07-22 06:30
Reported
2024-07-22 06:33
Platform
win10v2004-20240709-en
Max time kernel
138s
Max time network
150s
Command Line
Signatures
DcRat
Modifies WinLogon for persistence
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:/Users/Admin/AppData/Local/\\RuntimeBroker.exe\"" | C:\browserperfMonitor\portProviderRef.exe | N/A |
Process spawned unexpected child process
| Description | Indicator | Process | Target |
| Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process | N/A | C:\Windows\system32\schtasks.exe | |
| Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process | N/A | C:\Windows\system32\schtasks.exe | |
| Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process | N/A | C:\Windows\system32\schtasks.exe |
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-1-5-21-47134698-4092160662-1261813102-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\05fc0bdf63407c4bf2aa13262366cec5.exe | N/A |
| Key value queried | \REGISTRY\USER\S-1-5-21-47134698-4092160662-1261813102-1000\Control Panel\International\Geo\Nation | C:\Windows\SysWOW64\WScript.exe | N/A |
| Key value queried | \REGISTRY\USER\S-1-5-21-47134698-4092160662-1261813102-1000\Control Panel\International\Geo\Nation | C:\browserperfMonitor\portProviderRef.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\browserperfMonitor\portProviderRef.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\RuntimeBroker.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-47134698-4092160662-1261813102-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\RuntimeBroker = "\"C:/Users/Admin/AppData/Local/\\RuntimeBroker.exe\"" | C:\browserperfMonitor\portProviderRef.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\RuntimeBroker = "\"C:/Users/Admin/AppData/Local/\\RuntimeBroker.exe\"" | C:\browserperfMonitor\portProviderRef.exe | N/A |
Legitimate hosting services abused for malware hosting/C2
| Description | Indicator | Process | Target |
| N/A | pastebin.com | N/A | N/A |
| N/A | pastebin.com | N/A | N/A |
Enumerates physical storage devices
Modifies registry class
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\USER\S-1-5-21-47134698-4092160662-1261813102-1000_Classes\Local Settings | C:\Users\Admin\AppData\Local\Temp\05fc0bdf63407c4bf2aa13262366cec5.exe | N/A |
| Key created | \REGISTRY\USER\S-1-5-21-47134698-4092160662-1261813102-1000_Classes\Local Settings | C:\browserperfMonitor\portProviderRef.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 |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\browserperfMonitor\portProviderRef.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\RuntimeBroker.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\RuntimeBroker.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\RuntimeBroker.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\RuntimeBroker.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\RuntimeBroker.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\RuntimeBroker.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\RuntimeBroker.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\RuntimeBroker.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\RuntimeBroker.exe | N/A |
Suspicious behavior: GetForegroundWindowSpam
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\RuntimeBroker.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\browserperfMonitor\portProviderRef.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\RuntimeBroker.exe | N/A |
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Processes
C:\Users\Admin\AppData\Local\Temp\05fc0bdf63407c4bf2aa13262366cec5.exe
"C:\Users\Admin\AppData\Local\Temp\05fc0bdf63407c4bf2aa13262366cec5.exe"
C:\Windows\SysWOW64\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\browserperfMonitor\vkP8jBMFLUV3sBPqx5nb72wkkbdxGy.vbe"
C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\browserperfMonitor\Djd9PDHmb.bat" "
C:\browserperfMonitor\portProviderRef.exe
"C:\browserperfMonitor\portProviderRef.exe"
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "RuntimeBrokerR" /sc MINUTE /mo 10 /tr "'C:/Users/Admin/AppData/Local/\RuntimeBroker.exe'" /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "RuntimeBroker" /sc ONLOGON /tr "'C:/Users/Admin/AppData/Local/\RuntimeBroker.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "RuntimeBrokerR" /sc MINUTE /mo 13 /tr "'C:/Users/Admin/AppData/Local/\RuntimeBroker.exe'" /rl HIGHEST /f
C:\Windows\System32\cmd.exe
"C:\Windows\System32\cmd.exe" /C "C:\Users\Admin\AppData\Local\Temp\zK52lkeuoZ.bat"
C:\Windows\system32\w32tm.exe
w32tm /stripchart /computer:localhost /period:5 /dataonly /samples:2
C:\Users\Admin\AppData\Local\RuntimeBroker.exe
"C:/Users/Admin/AppData/Local/\RuntimeBroker.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 8.8.8.8.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 228.249.119.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | g.bing.com | udp |
| US | 13.107.21.237:443 | g.bing.com | tcp |
| US | 8.8.8.8:53 | 72.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 240.221.184.93.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 237.21.107.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 26.35.223.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 13.86.106.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | pastebin.com | udp |
| US | 172.67.19.24:443 | pastebin.com | tcp |
| US | 8.8.8.8:53 | f1006727.xsph.ru | udp |
| RU | 141.8.192.151:80 | f1006727.xsph.ru | tcp |
| RU | 141.8.192.151:80 | f1006727.xsph.ru | tcp |
| US | 8.8.8.8:53 | 24.19.67.172.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 151.192.8.141.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 28.118.140.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 86.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 171.39.242.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 147.142.123.92.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 43.229.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | tse1.mm.bing.net | udp |
| US | 150.171.28.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.28.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.28.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.28.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.28.10:443 | tse1.mm.bing.net | tcp |
| US | 8.8.8.8:53 | 43.58.199.20.in-addr.arpa | udp |
| RU | 141.8.192.151:80 | f1006727.xsph.ru | tcp |
Files
C:\browserperfMonitor\vkP8jBMFLUV3sBPqx5nb72wkkbdxGy.vbe
| MD5 | b7a2b70763db60fd1a9698cc2f1673b5 |
| SHA1 | 233ef75d111f6b43cc8d2cd0d9e84479d04d2e2e |
| SHA256 | 2ed7cb88c0f405254bc9051c1fb58477bb7d046f59d94c7ec1fe7b03448751f7 |
| SHA512 | 1c8c757064e8b1ada32149a9d2d08ecf75d3936055c5f7d4d43dd82bcbfefbb00c1f038e02e935de6713ced80e6026c9185875f4402d760842bfc804edbef74b |
C:\browserperfMonitor\Djd9PDHmb.bat
| MD5 | e6c63fa184d2f4c5d38e9b525bfddb81 |
| SHA1 | feb5e4b45154422a4e84dfcdc2279d3cb75901ff |
| SHA256 | ce100b5fc38b08ad9df71883aea94f49083eb8bbec1ddc7c3a5f3c6a7514ec5b |
| SHA512 | 595fd643b0caaabb87fda59acd1fcd3bd953beb7b6e334e1724fd3d33fcc86d854e70d8bf080cac097eb3ddf180c95d0b9773f25aadfd66c1759adc5b2b7fe69 |
C:\browserperfMonitor\portProviderRef.exe
| MD5 | 0d11a32c038c7f303ad3c020717c007d |
| SHA1 | fffea33c9efe66d4c343d926e30aa114e5d5967d |
| SHA256 | 246bbbec6cc0c1fa290496f764d38451b8f0b64d3ff08f587e0814fd49198757 |
| SHA512 | 1afd437ee901fa934a7c425bed6a95b4b3cd303c3383e99ded4d4ef38e0e758d82febbf2030a2a7b3af131f03e1bf8d9cedf326cc221ef57e733e5c97cb24ff7 |
memory/2728-13-0x00007FFC0EB03000-0x00007FFC0EB05000-memory.dmp
memory/2728-12-0x0000000000EC0000-0x0000000000F16000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\zK52lkeuoZ.bat
| MD5 | bd9710bb819e6393af51accf9d681b84 |
| SHA1 | e04ab7d05ebc46b70dfb3abff15b3298c2713189 |
| SHA256 | 682c35e167838c336cd83e225aa077a43110785ab3cac0279fb360abfa78a186 |
| SHA512 | 9165d1a7374f0ac7b1aab4eb4a26921c64c94a91030ae7240a439a7a189af9b220d927c7f4e8d3b7347161216e4daf5c634743dac9b6d52795446f19a86b79a7 |