Analysis Overview
SHA256
c81d899cf0ca50b5f8ffa37e964e2bca5b530fd7bf526af295725352150fb891
Threat Level: Known bad
The file c81d899cf0ca50b5f8ffa37e964e2bca5b530fd7bf526af295725352150fb891 was found to be: Known bad.
Malicious Activity Summary
Dcrat family
Process spawned unexpected child process
DcRat
DCRat payload
DCRat payload
Executes dropped EXE
Checks computer location settings
Legitimate hosting services abused for malware hosting/C2
Enumerates physical storage devices
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: EnumeratesProcesses
Modifies registry class
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Creates scheduled task(s)
MITRE ATT&CK
Enterprise Matrix V6
Analysis: static1
Detonation Overview
Reported
2022-10-31 22:55
Signatures
DCRat payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Dcrat family
Analysis: behavioral1
Detonation Overview
Submitted
2022-10-31 22:55
Reported
2022-10-31 22:57
Platform
win10v2004-20220901-en
Max time kernel
129s
Max time network
152s
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 |
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 |
| 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:\providercommon\DllCommonsvc.exe | N/A |
| N/A | N/A | C:\providercommon\RuntimeBroker.exe | N/A |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\c81d899cf0ca50b5f8ffa37e964e2bca5b530fd7bf526af295725352150fb891.exe | N/A |
| Key value queried | \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation | C:\Windows\SysWOW64\WScript.exe | N/A |
| Key value queried | \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation | C:\providercommon\DllCommonsvc.exe | N/A |
Legitimate hosting services abused for malware hosting/C2
Enumerates physical storage devices
Creates scheduled task(s)
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\system32\schtasks.exe | N/A |
| N/A | N/A | C:\Windows\system32\schtasks.exe | N/A |
| N/A | N/A | C:\Windows\system32\schtasks.exe | N/A |
| N/A | N/A | C:\Windows\system32\schtasks.exe | N/A |
| N/A | N/A | C:\Windows\system32\schtasks.exe | N/A |
| N/A | N/A | C:\Windows\system32\schtasks.exe | N/A |
| N/A | N/A | C:\Windows\system32\schtasks.exe | N/A |
| N/A | N/A | C:\Windows\system32\schtasks.exe | N/A |
| N/A | N/A | C:\Windows\system32\schtasks.exe | N/A |
Modifies registry class
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000_Classes\Local Settings | C:\Users\Admin\AppData\Local\Temp\c81d899cf0ca50b5f8ffa37e964e2bca5b530fd7bf526af295725352150fb891.exe | N/A |
| Key created | \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000_Classes\Local Settings | C:\providercommon\DllCommonsvc.exe | N/A |
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
| Description | Indicator | Process | Target |
| N/A | N/A | C:\providercommon\RuntimeBroker.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\providercommon\DllCommonsvc.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\providercommon\RuntimeBroker.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\c81d899cf0ca50b5f8ffa37e964e2bca5b530fd7bf526af295725352150fb891.exe
"C:\Users\Admin\AppData\Local\Temp\c81d899cf0ca50b5f8ffa37e964e2bca5b530fd7bf526af295725352150fb891.exe"
C:\Windows\SysWOW64\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\providercommon\yTUdeXjbLOhnrN32dgrxVg.vbe"
C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\providercommon\1zu9dW.bat" "
C:\providercommon\DllCommonsvc.exe
"C:\providercommon\DllCommonsvc.exe"
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "RuntimeBrokerR" /sc MINUTE /mo 7 /tr "'C:\providercommon\RuntimeBroker.exe'" /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "RuntimeBroker" /sc ONLOGON /tr "'C:\providercommon\RuntimeBroker.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "RuntimeBrokerR" /sc MINUTE /mo 11 /tr "'C:\providercommon\RuntimeBroker.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "RuntimeBrokerR" /sc MINUTE /mo 6 /tr "'C:\Recovery\WindowsRE\RuntimeBroker.exe'" /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "RuntimeBroker" /sc ONLOGON /tr "'C:\Recovery\WindowsRE\RuntimeBroker.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "RuntimeBrokerR" /sc MINUTE /mo 10 /tr "'C:\Recovery\WindowsRE\RuntimeBroker.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "cmdc" /sc MINUTE /mo 13 /tr "'C:\providercommon\cmd.exe'" /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "cmd" /sc ONLOGON /tr "'C:\providercommon\cmd.exe'" /rl HIGHEST /f
C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "cmdc" /sc MINUTE /mo 6 /tr "'C:\providercommon\cmd.exe'" /rl HIGHEST /f
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
"powershell" -Command Add-MpPreference -ExclusionPath 'C:\providercommon\DllCommonsvc.exe'
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
"powershell" -Command Add-MpPreference -ExclusionPath 'C:\Recovery\WindowsRE\RuntimeBroker.exe'
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
"powershell" -Command Add-MpPreference -ExclusionPath 'C:\providercommon\cmd.exe'
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
"powershell" -Command Add-MpPreference -ExclusionPath 'C:\providercommon\RuntimeBroker.exe'
C:\Windows\System32\cmd.exe
"C:\Windows\System32\cmd.exe" /C "C:\Users\Admin\AppData\Local\Temp\Xt53IWezav.bat"
C:\Windows\system32\w32tm.exe
w32tm /stripchart /computer:localhost /period:5 /dataonly /samples:2
C:\providercommon\RuntimeBroker.exe
"C:\providercommon\RuntimeBroker.exe"
Network
| Country | Destination | Domain | Proto |
| NL | 104.80.225.205:443 | tcp | |
| US | 8.8.8.8:53 | raw.githubusercontent.com | udp |
| US | 185.199.108.133:443 | raw.githubusercontent.com | tcp |
| NL | 45.82.176.111:80 | 45.82.176.111 | tcp |
| NL | 45.82.176.111:80 | 45.82.176.111 | tcp |
| US | 20.189.173.4:443 | tcp | |
| US | 8.253.183.120:80 | tcp | |
| US | 8.253.183.120:80 | tcp | |
| US | 8.253.183.120:80 | tcp | |
| NL | 45.82.176.111:80 | 45.82.176.111 | tcp |
Files
memory/4244-132-0x0000000000000000-mapping.dmp
C:\providercommon\yTUdeXjbLOhnrN32dgrxVg.vbe
| MD5 | 8088241160261560a02c84025d107592 |
| SHA1 | 083121f7027557570994c9fc211df61730455bb5 |
| SHA256 | 2072cc9a4a3b84d4c5178ab41c5588eea7d0103e3928e34d64f17bf97f3d1cc1 |
| SHA512 | 20d9369dd359315848ea30144383a0bb479d86059fdbc3b3256ac84f998193512feb3b1799ab663619920c99fe7e0ebba33ada31a3855094b956fcd351c90478 |
C:\providercommon\1zu9dW.bat
| MD5 | 6783c3ee07c7d151ceac57f1f9c8bed7 |
| SHA1 | 17468f98f95bf504cc1f83c49e49a78526b3ea03 |
| SHA256 | 8ab782f0f327a2021530e7230d3aee8abbecb7eed59482a3a46e78b9e3862322 |
| SHA512 | c6012d4bfac1ed14d0fd9f0eabd0e1c3d647b343db292a907b246271d52a4b7469c809db43910ddba2e8c5045f9cb3d24d0af62d363281e6cb8b39ee94a183e8 |
memory/3648-135-0x0000000000000000-mapping.dmp
memory/2488-136-0x0000000000000000-mapping.dmp
C:\providercommon\DllCommonsvc.exe
| MD5 | bd31e94b4143c4ce49c17d3af46bcad0 |
| SHA1 | f8c51ff3ff909531d9469d4ba1bbabae101853ff |
| SHA256 | b5199d3eb28e7de8ec4a5de66cb339a03d90b297e2292473badaab98ade15c63 |
| SHA512 | f96658bd19b672fd84038bd7e95c89e14f4e6f84e3ce9c6fe3216861a41203406148c6a809c2ab350d0d6c5919c845f619deb1fc9b1f1814dfce87e566bc2394 |
C:\providercommon\DllCommonsvc.exe
| MD5 | bd31e94b4143c4ce49c17d3af46bcad0 |
| SHA1 | f8c51ff3ff909531d9469d4ba1bbabae101853ff |
| SHA256 | b5199d3eb28e7de8ec4a5de66cb339a03d90b297e2292473badaab98ade15c63 |
| SHA512 | f96658bd19b672fd84038bd7e95c89e14f4e6f84e3ce9c6fe3216861a41203406148c6a809c2ab350d0d6c5919c845f619deb1fc9b1f1814dfce87e566bc2394 |
memory/2488-139-0x00000000000B0000-0x00000000001C0000-memory.dmp
memory/2488-140-0x00007FF9484B0000-0x00007FF948F71000-memory.dmp
memory/2828-141-0x0000000000000000-mapping.dmp
memory/4708-143-0x0000000000000000-mapping.dmp
memory/4408-144-0x0000000000000000-mapping.dmp
memory/1060-142-0x0000000000000000-mapping.dmp
memory/4592-145-0x0000000000000000-mapping.dmp
memory/4408-146-0x000002BE635A0000-0x000002BE635C2000-memory.dmp
memory/2488-147-0x00007FF9484B0000-0x00007FF948F71000-memory.dmp
memory/2876-149-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Local\Temp\Xt53IWezav.bat
| MD5 | e743aec95ed87abd917d81c6ecbc60e0 |
| SHA1 | fda8b0c3bafbd2cf9e4ceeccf41524bc089552c3 |
| SHA256 | c8799c37c416e39d0a24bd7c108c40927842e5c915840f8c8a4b8bd02d109281 |
| SHA512 | ab358a330176b5e79330d7689746a0197e0681a4034b51c489ec17e712c7e8ce35b52ed84bc30a4ca09c323b1e42f296b3873eebc80adab1ebbf3dc3d0caad63 |
memory/2828-150-0x00007FF9484B0000-0x00007FF948F71000-memory.dmp
memory/1060-151-0x00007FF9484B0000-0x00007FF948F71000-memory.dmp
memory/4408-152-0x00007FF9484B0000-0x00007FF948F71000-memory.dmp
memory/4708-153-0x00007FF9484B0000-0x00007FF948F71000-memory.dmp
C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log
| MD5 | d85ba6ff808d9e5444a4b369f5bc2730 |
| SHA1 | 31aa9d96590fff6981b315e0b391b575e4c0804a |
| SHA256 | 84739c608a73509419748e4e20e6cc4e1846056c3fe1929a8300d5a1a488202f |
| SHA512 | 8c414eb55b45212af385accc16d9d562adba2123583ce70d22b91161fe878683845512a78f04dedd4ea98ed9b174dbfa98cf696370598ad8e6fbd1e714f1f249 |
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
| MD5 | 77d622bb1a5b250869a3238b9bc1402b |
| SHA1 | d47f4003c2554b9dfc4c16f22460b331886b191b |
| SHA256 | f97ff12a8abf4bf88bb6497bd2ac2da12628c8847a8ba5a9026bdbb76507cdfb |
| SHA512 | d6789b5499f23c9035375a102271e17a8a82e57d6f5312fa24242e08a83efdeb8becb7622f55c4cf1b89c7d864b445df11f4d994cf7e2f87a900535bcca12fd9 |
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
| MD5 | 77d622bb1a5b250869a3238b9bc1402b |
| SHA1 | d47f4003c2554b9dfc4c16f22460b331886b191b |
| SHA256 | f97ff12a8abf4bf88bb6497bd2ac2da12628c8847a8ba5a9026bdbb76507cdfb |
| SHA512 | d6789b5499f23c9035375a102271e17a8a82e57d6f5312fa24242e08a83efdeb8becb7622f55c4cf1b89c7d864b445df11f4d994cf7e2f87a900535bcca12fd9 |
memory/4408-157-0x00007FF9484B0000-0x00007FF948F71000-memory.dmp
memory/1060-158-0x00007FF9484B0000-0x00007FF948F71000-memory.dmp
memory/2828-159-0x00007FF9484B0000-0x00007FF948F71000-memory.dmp
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
| MD5 | d28a889fd956d5cb3accfbaf1143eb6f |
| SHA1 | 157ba54b365341f8ff06707d996b3635da8446f7 |
| SHA256 | 21e5d7ccf80a293e6ba30ed728846ca19c929c52b96e2c8d34e27cd2234f1d45 |
| SHA512 | 0b6d88deb9be85722e6a78d5886d49f2caf407a59e128d2b4ed74c1356f9928c40048a62731959f2460e9ff9d9feee311043d2a37abe3bb92c2b76a44281478c |
memory/4708-161-0x00007FF9484B0000-0x00007FF948F71000-memory.dmp
C:\providercommon\RuntimeBroker.exe
| MD5 | bd31e94b4143c4ce49c17d3af46bcad0 |
| SHA1 | f8c51ff3ff909531d9469d4ba1bbabae101853ff |
| SHA256 | b5199d3eb28e7de8ec4a5de66cb339a03d90b297e2292473badaab98ade15c63 |
| SHA512 | f96658bd19b672fd84038bd7e95c89e14f4e6f84e3ce9c6fe3216861a41203406148c6a809c2ab350d0d6c5919c845f619deb1fc9b1f1814dfce87e566bc2394 |
memory/1368-162-0x0000000000000000-mapping.dmp
C:\providercommon\RuntimeBroker.exe
| MD5 | bd31e94b4143c4ce49c17d3af46bcad0 |
| SHA1 | f8c51ff3ff909531d9469d4ba1bbabae101853ff |
| SHA256 | b5199d3eb28e7de8ec4a5de66cb339a03d90b297e2292473badaab98ade15c63 |
| SHA512 | f96658bd19b672fd84038bd7e95c89e14f4e6f84e3ce9c6fe3216861a41203406148c6a809c2ab350d0d6c5919c845f619deb1fc9b1f1814dfce87e566bc2394 |
memory/1368-165-0x00007FF9484B0000-0x00007FF948F71000-memory.dmp
memory/1368-166-0x00007FF9484B0000-0x00007FF948F71000-memory.dmp