Analysis
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max time kernel
151s -
max time network
78s -
platform
windows10_x64 -
resource
win10v20210408 -
submitted
18-05-2021 00:34
Static task
static1
Behavioral task
behavioral1
Sample
3762078599f375cbd5060bc95081aa3eb4d195c22203a7bd2e5398bba14f56d4.exe
Resource
win7v20210410
Behavioral task
behavioral2
Sample
3762078599f375cbd5060bc95081aa3eb4d195c22203a7bd2e5398bba14f56d4.exe
Resource
win10v20210408
General
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Target
3762078599f375cbd5060bc95081aa3eb4d195c22203a7bd2e5398bba14f56d4.exe
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Size
1.0MB
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MD5
e7f0f4de54ed5adb58654f1b2966fafc
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SHA1
0592cbbea0f88c12a412d4e3c8750aed1bab9b96
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SHA256
3762078599f375cbd5060bc95081aa3eb4d195c22203a7bd2e5398bba14f56d4
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SHA512
8dccd27af3eb21bf985cbcc34b18eec25f12b5a9ca843bd3350580c591119af27b2cc2647a2fb1866d72e5aaaa063cdc78c67ae56bd63b1969a5d1575bd39227
Malware Config
Signatures
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Modifies WinLogon for persistence 2 TTPs 2 IoCs
Processes:
3762078599f375cbd5060bc95081aa3eb4d195c22203a7bd2e5398bba14f56d4.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "Explorer.exe" 3762078599f375cbd5060bc95081aa3eb4d195c22203a7bd2e5398bba14f56d4.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\UserInit = "C:\\Windows\\system32\\userinit.exe," 3762078599f375cbd5060bc95081aa3eb4d195c22203a7bd2e5398bba14f56d4.exe -
Modifies system executable filetype association 2 TTPs 1 IoCs
Processes:
3762078599f375cbd5060bc95081aa3eb4d195c22203a7bd2e5398bba14f56d4.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\SysWow64\\drivers\\spools.exe \"%1\" %*" 3762078599f375cbd5060bc95081aa3eb4d195c22203a7bd2e5398bba14f56d4.exe -
Drops file in Drivers directory 2 IoCs
Processes:
3762078599f375cbd5060bc95081aa3eb4d195c22203a7bd2e5398bba14f56d4.exedescription ioc process File created C:\Windows\SysWOW64\drivers\spools.exe 3762078599f375cbd5060bc95081aa3eb4d195c22203a7bd2e5398bba14f56d4.exe File opened for modification C:\Windows\SysWOW64\drivers\spools.exe 3762078599f375cbd5060bc95081aa3eb4d195c22203a7bd2e5398bba14f56d4.exe -
Sets service image path in registry 2 TTPs
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Adds Run key to start application 2 TTPs 4 IoCs
Processes:
3762078599f375cbd5060bc95081aa3eb4d195c22203a7bd2e5398bba14f56d4.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000\Software\Microsoft\Windows\CurrentVersion\Run\autoload = "C:\\Users\\Admin\\cftmon.exe" 3762078599f375cbd5060bc95081aa3eb4d195c22203a7bd2e5398bba14f56d4.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\ntuser = "C:\\Windows\\system32\\drivers\\spools.exe" 3762078599f375cbd5060bc95081aa3eb4d195c22203a7bd2e5398bba14f56d4.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\autoload = "C:\\Users\\Admin\\cftmon.exe" 3762078599f375cbd5060bc95081aa3eb4d195c22203a7bd2e5398bba14f56d4.exe 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" 3762078599f375cbd5060bc95081aa3eb4d195c22203a7bd2e5398bba14f56d4.exe -
Enumerates connected drives 3 TTPs 20 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
Processes:
3762078599f375cbd5060bc95081aa3eb4d195c22203a7bd2e5398bba14f56d4.exedescription ioc process File opened (read-only) \??\I: 3762078599f375cbd5060bc95081aa3eb4d195c22203a7bd2e5398bba14f56d4.exe File opened (read-only) \??\K: 3762078599f375cbd5060bc95081aa3eb4d195c22203a7bd2e5398bba14f56d4.exe File opened (read-only) \??\M: 3762078599f375cbd5060bc95081aa3eb4d195c22203a7bd2e5398bba14f56d4.exe File opened (read-only) \??\O: 3762078599f375cbd5060bc95081aa3eb4d195c22203a7bd2e5398bba14f56d4.exe File opened (read-only) \??\S: 3762078599f375cbd5060bc95081aa3eb4d195c22203a7bd2e5398bba14f56d4.exe File opened (read-only) \??\T: 3762078599f375cbd5060bc95081aa3eb4d195c22203a7bd2e5398bba14f56d4.exe File opened (read-only) \??\U: 3762078599f375cbd5060bc95081aa3eb4d195c22203a7bd2e5398bba14f56d4.exe File opened (read-only) \??\H: 3762078599f375cbd5060bc95081aa3eb4d195c22203a7bd2e5398bba14f56d4.exe File opened (read-only) \??\V: 3762078599f375cbd5060bc95081aa3eb4d195c22203a7bd2e5398bba14f56d4.exe File opened (read-only) \??\W: 3762078599f375cbd5060bc95081aa3eb4d195c22203a7bd2e5398bba14f56d4.exe File opened (read-only) \??\E: 3762078599f375cbd5060bc95081aa3eb4d195c22203a7bd2e5398bba14f56d4.exe File opened (read-only) \??\F: 3762078599f375cbd5060bc95081aa3eb4d195c22203a7bd2e5398bba14f56d4.exe File opened (read-only) \??\L: 3762078599f375cbd5060bc95081aa3eb4d195c22203a7bd2e5398bba14f56d4.exe File opened (read-only) \??\X: 3762078599f375cbd5060bc95081aa3eb4d195c22203a7bd2e5398bba14f56d4.exe File opened (read-only) \??\G: 3762078599f375cbd5060bc95081aa3eb4d195c22203a7bd2e5398bba14f56d4.exe File opened (read-only) \??\J: 3762078599f375cbd5060bc95081aa3eb4d195c22203a7bd2e5398bba14f56d4.exe File opened (read-only) \??\N: 3762078599f375cbd5060bc95081aa3eb4d195c22203a7bd2e5398bba14f56d4.exe File opened (read-only) \??\P: 3762078599f375cbd5060bc95081aa3eb4d195c22203a7bd2e5398bba14f56d4.exe File opened (read-only) \??\Q: 3762078599f375cbd5060bc95081aa3eb4d195c22203a7bd2e5398bba14f56d4.exe File opened (read-only) \??\R: 3762078599f375cbd5060bc95081aa3eb4d195c22203a7bd2e5398bba14f56d4.exe -
Installs/modifies Browser Helper Object 2 TTPs
BHOs are DLL modules which act as plugins for Internet Explorer.
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Modifies WinLogon 2 TTPs 1 IoCs
Processes:
3762078599f375cbd5060bc95081aa3eb4d195c22203a7bd2e5398bba14f56d4.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\UIHost = "logonui.exe" 3762078599f375cbd5060bc95081aa3eb4d195c22203a7bd2e5398bba14f56d4.exe -
Modifies registry class 1 IoCs
Processes:
3762078599f375cbd5060bc95081aa3eb4d195c22203a7bd2e5398bba14f56d4.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\SysWow64\\drivers\\spools.exe \"%1\" %*" 3762078599f375cbd5060bc95081aa3eb4d195c22203a7bd2e5398bba14f56d4.exe -
Suspicious use of WriteProcessMemory 3 IoCs
Processes:
3762078599f375cbd5060bc95081aa3eb4d195c22203a7bd2e5398bba14f56d4.exedescription pid process target process PID 4656 wrote to memory of 4936 4656 3762078599f375cbd5060bc95081aa3eb4d195c22203a7bd2e5398bba14f56d4.exe reg.exe PID 4656 wrote to memory of 4936 4656 3762078599f375cbd5060bc95081aa3eb4d195c22203a7bd2e5398bba14f56d4.exe reg.exe PID 4656 wrote to memory of 4936 4656 3762078599f375cbd5060bc95081aa3eb4d195c22203a7bd2e5398bba14f56d4.exe reg.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\3762078599f375cbd5060bc95081aa3eb4d195c22203a7bd2e5398bba14f56d4.exe"C:\Users\Admin\AppData\Local\Temp\3762078599f375cbd5060bc95081aa3eb4d195c22203a7bd2e5398bba14f56d4.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
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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
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Downloads
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memory/4936-114-0x0000000000000000-mapping.dmp