Analysis
- max time kernel
134s - max time network
151s - platform
windows10_x64 - resource
win10-en-20211014 - submitted
22/11/2021, 18:47
Static task
static1
Behavioral task
behavioral1
Sample
445fa165957d7e773453c4b83fe703f3.exe
Resource
win7-en-20211104
0 signatures
0 seconds
Behavioral task
behavioral2
Sample
445fa165957d7e773453c4b83fe703f3.exe
Resource
win10-en-20211014
0 signatures
0 seconds
General
- Target 445fa165957d7e773453c4b83fe703f3.exe
- Size 296KB
- Sample211122-xe7snsgfdj
- SHA256 fadb8eb7a7e20388dd3f9cf66171ae8d1c1e0845aed740ea58fa432c69bbaa7e
- MD5 445fa165957d7e773453c4b83fe703f3
- SHA1 78f17a5ffce0b7b34532d33b85d999ba2bfbcb74
- SHA512 aa40b9620db0e9e6b2aa6c170b0aa2808d336bb122d63d766d04710d5fc03a0aa9dfc1b9b185be2488aea02898cd33c8749c24308276010b6a5301092560f768
- MD5 SHA1 SHA512
Score
10/10
Malware Config
Signatures
- Modifies WinLogon for persistence 2 TTPs 6 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Boot\\uk-UA\\sihost.exe\"" 445fa165957d7e773453c4b83fe703f3.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Boot\\uk-UA\\sihost.exe\", \"C:\\Windows\\Logs\\NetSetup\\System.exe\"" 445fa165957d7e773453c4b83fe703f3.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Boot\\uk-UA\\sihost.exe\", \"C:\\Windows\\Logs\\NetSetup\\System.exe\", \"C:\\Recovery\\WindowsRE\\explorer.exe\"" 445fa165957d7e773453c4b83fe703f3.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Boot\\uk-UA\\sihost.exe\", \"C:\\Windows\\Logs\\NetSetup\\System.exe\", \"C:\\Recovery\\WindowsRE\\explorer.exe\", \"C:\\Windows\\System32\\DeviceCenter\\RuntimeBroker.exe\"" 445fa165957d7e773453c4b83fe703f3.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Boot\\uk-UA\\sihost.exe\", \"C:\\Windows\\Logs\\NetSetup\\System.exe\", \"C:\\Recovery\\WindowsRE\\explorer.exe\", \"C:\\Windows\\System32\\DeviceCenter\\RuntimeBroker.exe\", \"C:\\Windows\\WindowsUpdate\\explorer.exe\"" 445fa165957d7e773453c4b83fe703f3.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Boot\\uk-UA\\sihost.exe\", \"C:\\Windows\\Logs\\NetSetup\\System.exe\", \"C:\\Recovery\\WindowsRE\\explorer.exe\", \"C:\\Windows\\System32\\DeviceCenter\\RuntimeBroker.exe\", \"C:\\Windows\\WindowsUpdate\\explorer.exe\", \"C:\\Windows\\System32\\credprovhost\\lsass.exe\"" 445fa165957d7e773453c4b83fe703f3.exe - Process spawned unexpected child process 6 IoCs
This typically indicates the parent process was compromised via an exploit or macro.
description pid pid_target Process procid_target Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 1432 3840 schtasks.exe 69 Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 1436 3840 schtasks.exe 69 Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 1392 3840 schtasks.exe 69 Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 2652 3840 schtasks.exe 69 Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 1208 3840 schtasks.exe 69 Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 660 3840 schtasks.exe 69 - suricata: ET MALWARE Terse alphanumeric executable downloader high likelihood of being hostile
suricata: ET MALWARE Terse alphanumeric executable downloader high likelihood of being hostile
- Downloads MZ/PE file
- Executes dropped EXE 6 IoCs
pid Process 3544 System.exe 1268 System.exe 3396 System.exe 3420 svigs.exe 3792 msing.exe 2208 sihost64.exe - Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
- Adds Run key to start application 2 TTPs 12 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Windows\CurrentVersion\Run\sihost = "\"C:\\Boot\\uk-UA\\sihost.exe\"" 445fa165957d7e773453c4b83fe703f3.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\sihost = "\"C:\\Boot\\uk-UA\\sihost.exe\"" 445fa165957d7e773453c4b83fe703f3.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\System = "\"C:\\Windows\\Logs\\NetSetup\\System.exe\"" 445fa165957d7e773453c4b83fe703f3.exe Set value (str) \REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Windows\CurrentVersion\Run\explorer = "\"C:\\Windows\\WindowsUpdate\\explorer.exe\"" 445fa165957d7e773453c4b83fe703f3.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\explorer = "\"C:\\Windows\\WindowsUpdate\\explorer.exe\"" 445fa165957d7e773453c4b83fe703f3.exe Set value (str) \REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Windows\CurrentVersion\Run\lsass = "\"C:\\Windows\\System32\\credprovhost\\lsass.exe\"" 445fa165957d7e773453c4b83fe703f3.exe Set value (str) \REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Windows\CurrentVersion\Run\System = "\"C:\\Windows\\Logs\\NetSetup\\System.exe\"" 445fa165957d7e773453c4b83fe703f3.exe Set value (str) \REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Windows\CurrentVersion\Run\explorer = "\"C:\\Recovery\\WindowsRE\\explorer.exe\"" 445fa165957d7e773453c4b83fe703f3.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\explorer = "\"C:\\Recovery\\WindowsRE\\explorer.exe\"" 445fa165957d7e773453c4b83fe703f3.exe Set value (str) \REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Windows\CurrentVersion\Run\RuntimeBroker = "\"C:\\Windows\\System32\\DeviceCenter\\RuntimeBroker.exe\"" 445fa165957d7e773453c4b83fe703f3.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\RuntimeBroker = "\"C:\\Windows\\System32\\DeviceCenter\\RuntimeBroker.exe\"" 445fa165957d7e773453c4b83fe703f3.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\lsass = "\"C:\\Windows\\System32\\credprovhost\\lsass.exe\"" 445fa165957d7e773453c4b83fe703f3.exe - Drops file in System32 directory 4 IoCs
description ioc Process File created C:\Windows\SysWOW64\DeviceCenter\9e8d7a4ca61bd92aff00cc37a7a4d62a2cac998d 445fa165957d7e773453c4b83fe703f3.exe File created C:\Windows\SysWOW64\credprovhost\lsass.exe 445fa165957d7e773453c4b83fe703f3.exe File created C:\Windows\SysWOW64\credprovhost\6203df4a6bafc7c328ee7f6f8ca0a8a838a8a1b9 445fa165957d7e773453c4b83fe703f3.exe File created C:\Windows\SysWOW64\DeviceCenter\RuntimeBroker.exe 445fa165957d7e773453c4b83fe703f3.exe - Suspicious use of SetThreadContext 2 IoCs
description pid Process procid_target PID 2772 set thread context of 900 2772 445fa165957d7e773453c4b83fe703f3.exe 68 PID 3544 set thread context of 3396 3544 System.exe 78 - Drops file in Windows directory 4 IoCs
description ioc Process File created C:\Windows\Logs\NetSetup\System.exe 445fa165957d7e773453c4b83fe703f3.exe File created C:\Windows\Logs\NetSetup\27d1bcfc3c54e0e44ea423ffd4ee81fe73670a2a 445fa165957d7e773453c4b83fe703f3.exe File created C:\Windows\WindowsUpdate\explorer.exe 445fa165957d7e773453c4b83fe703f3.exe File created C:\Windows\WindowsUpdate\7a0fd90576e08807bde2cc57bcf9854bbce05fe3 445fa165957d7e773453c4b83fe703f3.exe - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Creates scheduled task(s) 1 TTPs 7 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 1392 schtasks.exe 2652 schtasks.exe 1208 schtasks.exe 660 schtasks.exe 2432 schtasks.exe 1432 schtasks.exe 1436 schtasks.exe - Suspicious behavior: EnumeratesProcesses 12 IoCs
pid Process 900 445fa165957d7e773453c4b83fe703f3.exe 900 445fa165957d7e773453c4b83fe703f3.exe 900 445fa165957d7e773453c4b83fe703f3.exe 3544 System.exe 3544 System.exe 3396 System.exe 3396 System.exe 3396 System.exe 3396 System.exe 3396 System.exe 3420 svigs.exe 3792 msing.exe - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 3396 System.exe - Suspicious use of AdjustPrivilegeToken 6 IoCs
description pid Process Token: SeDebugPrivilege 2772 445fa165957d7e773453c4b83fe703f3.exe Token: SeDebugPrivilege 900 445fa165957d7e773453c4b83fe703f3.exe Token: SeDebugPrivilege 3544 System.exe Token: SeDebugPrivilege 3396 System.exe Token: SeDebugPrivilege 3420 svigs.exe Token: SeDebugPrivilege 3792 msing.exe - Suspicious use of WriteProcessMemory 37 IoCs
description pid Process procid_target PID 2772 wrote to memory of 900 2772 445fa165957d7e773453c4b83fe703f3.exe 68 PID 2772 wrote to memory of 900 2772 445fa165957d7e773453c4b83fe703f3.exe 68 PID 2772 wrote to memory of 900 2772 445fa165957d7e773453c4b83fe703f3.exe 68 PID 2772 wrote to memory of 900 2772 445fa165957d7e773453c4b83fe703f3.exe 68 PID 2772 wrote to memory of 900 2772 445fa165957d7e773453c4b83fe703f3.exe 68 PID 2772 wrote to memory of 900 2772 445fa165957d7e773453c4b83fe703f3.exe 68 PID 2772 wrote to memory of 900 2772 445fa165957d7e773453c4b83fe703f3.exe 68 PID 2772 wrote to memory of 900 2772 445fa165957d7e773453c4b83fe703f3.exe 68 PID 900 wrote to memory of 3544 900 445fa165957d7e773453c4b83fe703f3.exe 76 PID 900 wrote to memory of 3544 900 445fa165957d7e773453c4b83fe703f3.exe 76 PID 900 wrote to memory of 3544 900 445fa165957d7e773453c4b83fe703f3.exe 76 PID 3544 wrote to memory of 1268 3544 System.exe 77 PID 3544 wrote to memory of 1268 3544 System.exe 77 PID 3544 wrote to memory of 1268 3544 System.exe 77 PID 3544 wrote to memory of 3396 3544 System.exe 78 PID 3544 wrote to memory of 3396 3544 System.exe 78 PID 3544 wrote to memory of 3396 3544 System.exe 78 PID 3544 wrote to memory of 3396 3544 System.exe 78 PID 3544 wrote to memory of 3396 3544 System.exe 78 PID 3544 wrote to memory of 3396 3544 System.exe 78 PID 3544 wrote to memory of 3396 3544 System.exe 78 PID 3544 wrote to memory of 3396 3544 System.exe 78 PID 3396 wrote to memory of 3420 3396 System.exe 79 PID 3396 wrote to memory of 3420 3396 System.exe 79 PID 3420 wrote to memory of 3568 3420 svigs.exe 82 PID 3420 wrote to memory of 3568 3420 svigs.exe 82 PID 3568 wrote to memory of 2432 3568 cmd.exe 84 PID 3568 wrote to memory of 2432 3568 cmd.exe 84 PID 3420 wrote to memory of 2168 3420 svigs.exe 85 PID 3420 wrote to memory of 2168 3420 svigs.exe 85 PID 2168 wrote to memory of 3792 2168 cmd.exe 87 PID 2168 wrote to memory of 3792 2168 cmd.exe 87 PID 3792 wrote to memory of 2208 3792 msing.exe 88 PID 3792 wrote to memory of 2208 3792 msing.exe 88 PID 2208 wrote to memory of 2304 2208 sihost64.exe 89 PID 2208 wrote to memory of 2304 2208 sihost64.exe 89 PID 2208 wrote to memory of 2304 2208 sihost64.exe 89
Processes
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C:\Users\Admin\AppData\Local\Temp\445fa165957d7e773453c4b83fe703f3.exe"C:\Users\Admin\AppData\Local\Temp\445fa165957d7e773453c4b83fe703f3.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2772 -
C:\Users\Admin\AppData\Local\Temp\445fa165957d7e773453c4b83fe703f3.exe"C:\Users\Admin\AppData\Local\Temp\445fa165957d7e773453c4b83fe703f3.exe"2⤵
- Modifies WinLogon for persistence
- Adds Run key to start application
- Drops file in System32 directory
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:900 -
C:\Windows\Logs\NetSetup\System.exe"C:\Windows\Logs\NetSetup\System.exe"3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3544 -
C:\Windows\Logs\NetSetup\System.exe"C:\Windows\Logs\NetSetup\System.exe"4⤵
- Executes dropped EXE
PID:1268
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C:\Windows\Logs\NetSetup\System.exe"C:\Windows\Logs\NetSetup\System.exe"4⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3396 -
C:\Users\Admin\AppData\Local\Temp\svigs.exe"C:\Users\Admin\AppData\Local\Temp\svigs.exe"5⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3420 -
C:\Windows\SYSTEM32\cmd.exe"cmd" /c schtasks /create /f /sc onlogon /rl highest /tn "msing" /tr "C:\Users\Admin\Microsoft\msing.exe"6⤵
- Suspicious use of WriteProcessMemory
PID:3568 -
C:\Windows\system32\schtasks.exeschtasks /create /f /sc onlogon /rl highest /tn "msing" /tr "C:\Users\Admin\Microsoft\msing.exe"7⤵
- Creates scheduled task(s)
PID:2432
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C:\Windows\SYSTEM32\cmd.exe"cmd" cmd /c "C:\Users\Admin\Microsoft\msing.exe"6⤵
- Suspicious use of WriteProcessMemory
PID:2168 -
C:\Users\Admin\Microsoft\msing.exeC:\Users\Admin\Microsoft\msing.exe7⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3792 -
C:\Users\Admin\AppData\Roaming\Microsoft\Telemetry\sihost64.exe"C:\Users\Admin\AppData\Roaming\Microsoft\Telemetry\sihost64.exe"8⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:2208 -
C:\Windows\System32\conhost.exe"C:\Windows\System32\conhost.exe" "stppnxkfjpovjwf"9⤵PID:2304
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "sihost" /sc ONLOGON /tr "'C:\Boot\uk-UA\sihost.exe'" /rl HIGHEST /f1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:1432
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "System" /sc ONLOGON /tr "'C:\Windows\Logs\NetSetup\System.exe'" /rl HIGHEST /f1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:1436
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "explorer" /sc ONLOGON /tr "'C:\Recovery\WindowsRE\explorer.exe'" /rl HIGHEST /f1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:1392
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "RuntimeBroker" /sc ONLOGON /tr "'C:\Windows\System32\DeviceCenter\RuntimeBroker.exe'" /rl HIGHEST /f1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:2652
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "explorer" /sc ONLOGON /tr "'C:\Windows\WindowsUpdate\explorer.exe'" /rl HIGHEST /f1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:1208
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "lsass" /sc ONLOGON /tr "'C:\Windows\System32\credprovhost\lsass.exe'" /rl HIGHEST /f1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:660