Analysis
-
max time kernel
151s -
max time network
51s -
platform
windows10_x64 -
resource
win10v20210408 -
submitted
18-05-2021 12:59
Static task
static1
Behavioral task
behavioral1
Sample
9bc4c6e8ed7d5d54d7f19a57339a7ec27cfb88f1f24223a86be1728314a1cd79.exe
Resource
win7v20210410
Behavioral task
behavioral2
Sample
9bc4c6e8ed7d5d54d7f19a57339a7ec27cfb88f1f24223a86be1728314a1cd79.exe
Resource
win10v20210408
General
-
Target
9bc4c6e8ed7d5d54d7f19a57339a7ec27cfb88f1f24223a86be1728314a1cd79.exe
-
Size
900KB
-
MD5
81b4103c429d32e38bc299579cada75a
-
SHA1
127df10bd41e732f9621152a1e5a896c43e725db
-
SHA256
9bc4c6e8ed7d5d54d7f19a57339a7ec27cfb88f1f24223a86be1728314a1cd79
-
SHA512
4047b2b6d7cb0e258c364743490d9c0356f6956e8208de022c7fcb1209485a6c68d33a641d225893da7ae4ee0f2507ad07d0e81f04cc399494c05f10466b1fbc
Malware Config
Signatures
-
Modifies WinLogon for persistence 2 TTPs 2 IoCs
Processes:
9bc4c6e8ed7d5d54d7f19a57339a7ec27cfb88f1f24223a86be1728314a1cd79.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "Explorer.exe" 9bc4c6e8ed7d5d54d7f19a57339a7ec27cfb88f1f24223a86be1728314a1cd79.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\UserInit = "C:\\Windows\\system32\\userinit.exe," 9bc4c6e8ed7d5d54d7f19a57339a7ec27cfb88f1f24223a86be1728314a1cd79.exe -
Modifies system executable filetype association 2 TTPs 1 IoCs
Processes:
9bc4c6e8ed7d5d54d7f19a57339a7ec27cfb88f1f24223a86be1728314a1cd79.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\SysWow64\\drivers\\spools.exe \"%1\" %*" 9bc4c6e8ed7d5d54d7f19a57339a7ec27cfb88f1f24223a86be1728314a1cd79.exe -
Drops file in Drivers directory 2 IoCs
Processes:
9bc4c6e8ed7d5d54d7f19a57339a7ec27cfb88f1f24223a86be1728314a1cd79.exedescription ioc process File created C:\Windows\SysWOW64\drivers\spools.exe 9bc4c6e8ed7d5d54d7f19a57339a7ec27cfb88f1f24223a86be1728314a1cd79.exe File opened for modification C:\Windows\SysWOW64\drivers\spools.exe 9bc4c6e8ed7d5d54d7f19a57339a7ec27cfb88f1f24223a86be1728314a1cd79.exe -
Sets service image path in registry 2 TTPs
-
Adds Run key to start application 2 TTPs 4 IoCs
Processes:
9bc4c6e8ed7d5d54d7f19a57339a7ec27cfb88f1f24223a86be1728314a1cd79.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000\Software\Microsoft\Windows\CurrentVersion\Run\ntuser = "C:\\Windows\\system32\\drivers\\spools.exe" 9bc4c6e8ed7d5d54d7f19a57339a7ec27cfb88f1f24223a86be1728314a1cd79.exe Set value (str) \REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000\Software\Microsoft\Windows\CurrentVersion\Run\autoload = "C:\\Users\\Admin\\cftmon.exe" 9bc4c6e8ed7d5d54d7f19a57339a7ec27cfb88f1f24223a86be1728314a1cd79.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\ntuser = "C:\\Windows\\system32\\drivers\\spools.exe" 9bc4c6e8ed7d5d54d7f19a57339a7ec27cfb88f1f24223a86be1728314a1cd79.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\autoload = "C:\\Users\\Admin\\cftmon.exe" 9bc4c6e8ed7d5d54d7f19a57339a7ec27cfb88f1f24223a86be1728314a1cd79.exe -
Enumerates connected drives 3 TTPs 20 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
Processes:
9bc4c6e8ed7d5d54d7f19a57339a7ec27cfb88f1f24223a86be1728314a1cd79.exedescription ioc process File opened (read-only) \??\N: 9bc4c6e8ed7d5d54d7f19a57339a7ec27cfb88f1f24223a86be1728314a1cd79.exe File opened (read-only) \??\J: 9bc4c6e8ed7d5d54d7f19a57339a7ec27cfb88f1f24223a86be1728314a1cd79.exe File opened (read-only) \??\K: 9bc4c6e8ed7d5d54d7f19a57339a7ec27cfb88f1f24223a86be1728314a1cd79.exe File opened (read-only) \??\L: 9bc4c6e8ed7d5d54d7f19a57339a7ec27cfb88f1f24223a86be1728314a1cd79.exe File opened (read-only) \??\O: 9bc4c6e8ed7d5d54d7f19a57339a7ec27cfb88f1f24223a86be1728314a1cd79.exe File opened (read-only) \??\Q: 9bc4c6e8ed7d5d54d7f19a57339a7ec27cfb88f1f24223a86be1728314a1cd79.exe File opened (read-only) \??\R: 9bc4c6e8ed7d5d54d7f19a57339a7ec27cfb88f1f24223a86be1728314a1cd79.exe File opened (read-only) \??\W: 9bc4c6e8ed7d5d54d7f19a57339a7ec27cfb88f1f24223a86be1728314a1cd79.exe File opened (read-only) \??\X: 9bc4c6e8ed7d5d54d7f19a57339a7ec27cfb88f1f24223a86be1728314a1cd79.exe File opened (read-only) \??\G: 9bc4c6e8ed7d5d54d7f19a57339a7ec27cfb88f1f24223a86be1728314a1cd79.exe File opened (read-only) \??\H: 9bc4c6e8ed7d5d54d7f19a57339a7ec27cfb88f1f24223a86be1728314a1cd79.exe File opened (read-only) \??\M: 9bc4c6e8ed7d5d54d7f19a57339a7ec27cfb88f1f24223a86be1728314a1cd79.exe File opened (read-only) \??\T: 9bc4c6e8ed7d5d54d7f19a57339a7ec27cfb88f1f24223a86be1728314a1cd79.exe File opened (read-only) \??\V: 9bc4c6e8ed7d5d54d7f19a57339a7ec27cfb88f1f24223a86be1728314a1cd79.exe File opened (read-only) \??\F: 9bc4c6e8ed7d5d54d7f19a57339a7ec27cfb88f1f24223a86be1728314a1cd79.exe File opened (read-only) \??\I: 9bc4c6e8ed7d5d54d7f19a57339a7ec27cfb88f1f24223a86be1728314a1cd79.exe File opened (read-only) \??\S: 9bc4c6e8ed7d5d54d7f19a57339a7ec27cfb88f1f24223a86be1728314a1cd79.exe File opened (read-only) \??\E: 9bc4c6e8ed7d5d54d7f19a57339a7ec27cfb88f1f24223a86be1728314a1cd79.exe File opened (read-only) \??\P: 9bc4c6e8ed7d5d54d7f19a57339a7ec27cfb88f1f24223a86be1728314a1cd79.exe File opened (read-only) \??\U: 9bc4c6e8ed7d5d54d7f19a57339a7ec27cfb88f1f24223a86be1728314a1cd79.exe -
Installs/modifies Browser Helper Object 2 TTPs
BHOs are DLL modules which act as plugins for Internet Explorer.
-
Modifies WinLogon 2 TTPs 1 IoCs
Processes:
9bc4c6e8ed7d5d54d7f19a57339a7ec27cfb88f1f24223a86be1728314a1cd79.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\UIHost = "logonui.exe" 9bc4c6e8ed7d5d54d7f19a57339a7ec27cfb88f1f24223a86be1728314a1cd79.exe -
Modifies registry class 1 IoCs
Processes:
9bc4c6e8ed7d5d54d7f19a57339a7ec27cfb88f1f24223a86be1728314a1cd79.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\SysWow64\\drivers\\spools.exe \"%1\" %*" 9bc4c6e8ed7d5d54d7f19a57339a7ec27cfb88f1f24223a86be1728314a1cd79.exe -
Suspicious use of WriteProcessMemory 3 IoCs
Processes:
9bc4c6e8ed7d5d54d7f19a57339a7ec27cfb88f1f24223a86be1728314a1cd79.exedescription pid process target process PID 852 wrote to memory of 1820 852 9bc4c6e8ed7d5d54d7f19a57339a7ec27cfb88f1f24223a86be1728314a1cd79.exe reg.exe PID 852 wrote to memory of 1820 852 9bc4c6e8ed7d5d54d7f19a57339a7ec27cfb88f1f24223a86be1728314a1cd79.exe reg.exe PID 852 wrote to memory of 1820 852 9bc4c6e8ed7d5d54d7f19a57339a7ec27cfb88f1f24223a86be1728314a1cd79.exe reg.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\9bc4c6e8ed7d5d54d7f19a57339a7ec27cfb88f1f24223a86be1728314a1cd79.exe"C:\Users\Admin\AppData\Local\Temp\9bc4c6e8ed7d5d54d7f19a57339a7ec27cfb88f1f24223a86be1728314a1cd79.exe"1⤵
- Modifies WinLogon for persistence
- Modifies system executable filetype association
- Drops file in Drivers directory
- Adds Run key to start application
- Enumerates connected drives
- Modifies WinLogon
- Modifies registry class
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\reg.exereg delete "HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects" /f2⤵
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
-
memory/1820-114-0x0000000000000000-mapping.dmp