7fa4e5e11ec3818f6caef4fe877d14d60513352dbabd1f3a6a80e3918eea5055

Analysis

max time kernel
317s
max time network
347s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
23-11-2022 09:53

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General

Target

7fa4e5e11ec3818f6caef4fe877d14d60513352dbabd1f3a6a80e3918eea5055.exe
Size

4.4MB
MD5

9ed07118ff23d177f3d98b12508c5612
SHA1

b156685cf48c8e153716fc637078f1c52a66114e
SHA256

7fa4e5e11ec3818f6caef4fe877d14d60513352dbabd1f3a6a80e3918eea5055
SHA512

0267560c2f04e0344ed46771fde6a6d70a9d37c33c96779ad489e475395c2cce83da3981abd424e63a1746ba6333c58eb9915ff0081c0aac0e81e056798e8c57
SSDEEP

98304:4CjPKNckJS/qUXdaF3czuGtNf+LUy0Dx3HuSzO1edE/DcvKbKCSgUcTpBl4EDHh:4CbGlSiSaJ2ugEoD9OSEOWcEKdWpT7DB

Score

10^/10

persistence

Malware Config

Signatures

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1004

Modify Registry

T1112

Processes:

7fa4e5e11ec3818f6caef4fe877d14d60513352dbabd1f3a6a80e3918eea5055.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\shell = "%AppData%\\Microsoft\\winlogon.exe,explorer.exe"	7fa4e5e11ec3818f6caef4fe877d14d60513352dbabd1f3a6a80e3918eea5055.exe

Adds policy Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

7fa4e5e11ec3818f6caef4fe877d14d60513352dbabd1f3a6a80e3918eea5055.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	7fa4e5e11ec3818f6caef4fe877d14d60513352dbabd1f3a6a80e3918eea5055.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\Adobe Reader = "%AppData%\\Microsoft\\winlogon.exe"	7fa4e5e11ec3818f6caef4fe877d14d60513352dbabd1f3a6a80e3918eea5055.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

7fa4e5e11ec3818f6caef4fe877d14d60513352dbabd1f3a6a80e3918eea5055.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\Software\Microsoft\Windows\CurrentVersion\Run	7fa4e5e11ec3818f6caef4fe877d14d60513352dbabd1f3a6a80e3918eea5055.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Adobe Reader = "%AppData%\\Microsoft\\winlogon.exe"	7fa4e5e11ec3818f6caef4fe877d14d60513352dbabd1f3a6a80e3918eea5055.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

7fa4e5e11ec3818f6caef4fe877d14d60513352dbabd1f3a6a80e3918eea5055.exe

description	pid	process	target process
PID 1532 set thread context of 1804	1532	7fa4e5e11ec3818f6caef4fe877d14d60513352dbabd1f3a6a80e3918eea5055.exe	svchost.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Suspicious use of FindShellTrayWindow 4 IoCs

Processes:

7fa4e5e11ec3818f6caef4fe877d14d60513352dbabd1f3a6a80e3918eea5055.exe

pid	process
1532	7fa4e5e11ec3818f6caef4fe877d14d60513352dbabd1f3a6a80e3918eea5055.exe
1532	7fa4e5e11ec3818f6caef4fe877d14d60513352dbabd1f3a6a80e3918eea5055.exe
1532	7fa4e5e11ec3818f6caef4fe877d14d60513352dbabd1f3a6a80e3918eea5055.exe
1532	7fa4e5e11ec3818f6caef4fe877d14d60513352dbabd1f3a6a80e3918eea5055.exe

Suspicious use of SendNotifyMessage 4 IoCs

Processes:

7fa4e5e11ec3818f6caef4fe877d14d60513352dbabd1f3a6a80e3918eea5055.exe

pid	process
1532	7fa4e5e11ec3818f6caef4fe877d14d60513352dbabd1f3a6a80e3918eea5055.exe
1532	7fa4e5e11ec3818f6caef4fe877d14d60513352dbabd1f3a6a80e3918eea5055.exe
1532	7fa4e5e11ec3818f6caef4fe877d14d60513352dbabd1f3a6a80e3918eea5055.exe
1532	7fa4e5e11ec3818f6caef4fe877d14d60513352dbabd1f3a6a80e3918eea5055.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

7fa4e5e11ec3818f6caef4fe877d14d60513352dbabd1f3a6a80e3918eea5055.exe

description	pid	process	target process
PID 1532 wrote to memory of 1804	1532	7fa4e5e11ec3818f6caef4fe877d14d60513352dbabd1f3a6a80e3918eea5055.exe	svchost.exe
PID 1532 wrote to memory of 1804	1532	7fa4e5e11ec3818f6caef4fe877d14d60513352dbabd1f3a6a80e3918eea5055.exe	svchost.exe
PID 1532 wrote to memory of 1804	1532	7fa4e5e11ec3818f6caef4fe877d14d60513352dbabd1f3a6a80e3918eea5055.exe	svchost.exe
PID 1532 wrote to memory of 1804	1532	7fa4e5e11ec3818f6caef4fe877d14d60513352dbabd1f3a6a80e3918eea5055.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\7fa4e5e11ec3818f6caef4fe877d14d60513352dbabd1f3a6a80e3918eea5055.exe
"C:\Users\Admin\AppData\Local\Temp\7fa4e5e11ec3818f6caef4fe877d14d60513352dbabd1f3a6a80e3918eea5055.exe"
1⤵
- Modifies WinLogon for persistence
- Adds policy Run key to start application
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1532

C:\Windows\SysWOW64\svchost.exe
"C:\Windows\System32\svchost.exe"
2⤵
PID:1804

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1804 -ip 1804
1⤵
PID:1084

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Winlogon Helper DLL

T1004

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1804-132-0x0000000000000000-mapping.dmp

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