Analysis
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max time kernel
150s -
max time network
82s -
platform
windows7_x64 -
resource
win7-20220812-en -
resource tags
arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system -
submitted
25-11-2022 08:36
Static task
static1
Behavioral task
behavioral1
Sample
c67670460262b6989bf0c63768bbb7be30286c3ce652d699831eb0b934d5bd4e.exe
Resource
win7-20220812-en
Behavioral task
behavioral2
Sample
c67670460262b6989bf0c63768bbb7be30286c3ce652d699831eb0b934d5bd4e.exe
Resource
win10v2004-20220812-en
General
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Target
c67670460262b6989bf0c63768bbb7be30286c3ce652d699831eb0b934d5bd4e.exe
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Size
105KB
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MD5
92c535addeff7ecac919e373556bfb79
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SHA1
a50acb99696bd4ddc1556610f3d0427188572056
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SHA256
c67670460262b6989bf0c63768bbb7be30286c3ce652d699831eb0b934d5bd4e
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SHA512
8acc0fbbfa89f85d7a81e8f60faad0734dfe5e7a48d9ea14904143dfc5e5ab3a6ead840aad03137299b93d177bf6fd15632aae02713b2bf8d3a14959d1a849f7
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SSDEEP
1536:vJzZEdih8l1KrHiujC0MGyzGWfLTO368NVrVwR5b29S/S9f0SInJP:RzZEdih8l1qHi+jgLRG+h2wnSInJ
Malware Config
Signatures
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Executes dropped EXE 2 IoCs
Processes:
Winlogon.exeWinlogon.exepid process 1716 Winlogon.exe 1692 Winlogon.exe -
Modifies Windows Firewall 1 TTPs 1 IoCs
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Drops startup file 2 IoCs
Processes:
Winlogon.exedescription ioc process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\27501c16f97ef83b27996be6844bc1a0.exe Winlogon.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\27501c16f97ef83b27996be6844bc1a0.exe Winlogon.exe -
Loads dropped DLL 2 IoCs
Processes:
c67670460262b6989bf0c63768bbb7be30286c3ce652d699831eb0b934d5bd4e.exeWinlogon.exepid process 1996 c67670460262b6989bf0c63768bbb7be30286c3ce652d699831eb0b934d5bd4e.exe 1716 Winlogon.exe -
Adds Run key to start application 2 TTPs 3 IoCs
Processes:
c67670460262b6989bf0c63768bbb7be30286c3ce652d699831eb0b934d5bd4e.exeWinlogon.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce\zHDMdBkDZC = "C:\\Users\\Admin\\AppData\\Roaming\\EkZQTmNeLd\\CaSfYAGrKE.exe" c67670460262b6989bf0c63768bbb7be30286c3ce652d699831eb0b934d5bd4e.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\27501c16f97ef83b27996be6844bc1a0 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\Winlogon.exe\" .." Winlogon.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\27501c16f97ef83b27996be6844bc1a0 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\Winlogon.exe\" .." Winlogon.exe -
Suspicious use of SetThreadContext 2 IoCs
Processes:
c67670460262b6989bf0c63768bbb7be30286c3ce652d699831eb0b934d5bd4e.exeWinlogon.exedescription pid process target process PID 1572 set thread context of 1996 1572 c67670460262b6989bf0c63768bbb7be30286c3ce652d699831eb0b934d5bd4e.exe c67670460262b6989bf0c63768bbb7be30286c3ce652d699831eb0b934d5bd4e.exe PID 1716 set thread context of 1692 1716 Winlogon.exe Winlogon.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Suspicious behavior: EnumeratesProcesses 1 IoCs
Processes:
c67670460262b6989bf0c63768bbb7be30286c3ce652d699831eb0b934d5bd4e.exepid process 1996 c67670460262b6989bf0c63768bbb7be30286c3ce652d699831eb0b934d5bd4e.exe -
Suspicious use of AdjustPrivilegeToken 18 IoCs
Processes:
c67670460262b6989bf0c63768bbb7be30286c3ce652d699831eb0b934d5bd4e.exeWinlogon.exedescription pid process Token: SeDebugPrivilege 1996 c67670460262b6989bf0c63768bbb7be30286c3ce652d699831eb0b934d5bd4e.exe Token: SeDebugPrivilege 1692 Winlogon.exe Token: 33 1692 Winlogon.exe Token: SeIncBasePriorityPrivilege 1692 Winlogon.exe Token: 33 1692 Winlogon.exe Token: SeIncBasePriorityPrivilege 1692 Winlogon.exe Token: 33 1692 Winlogon.exe Token: SeIncBasePriorityPrivilege 1692 Winlogon.exe Token: 33 1692 Winlogon.exe Token: SeIncBasePriorityPrivilege 1692 Winlogon.exe Token: 33 1692 Winlogon.exe Token: SeIncBasePriorityPrivilege 1692 Winlogon.exe Token: 33 1692 Winlogon.exe Token: SeIncBasePriorityPrivilege 1692 Winlogon.exe Token: 33 1692 Winlogon.exe Token: SeIncBasePriorityPrivilege 1692 Winlogon.exe Token: 33 1692 Winlogon.exe Token: SeIncBasePriorityPrivilege 1692 Winlogon.exe -
Suspicious use of WriteProcessMemory 26 IoCs
Processes:
c67670460262b6989bf0c63768bbb7be30286c3ce652d699831eb0b934d5bd4e.exec67670460262b6989bf0c63768bbb7be30286c3ce652d699831eb0b934d5bd4e.exeWinlogon.exeWinlogon.exedescription pid process target process PID 1572 wrote to memory of 1996 1572 c67670460262b6989bf0c63768bbb7be30286c3ce652d699831eb0b934d5bd4e.exe c67670460262b6989bf0c63768bbb7be30286c3ce652d699831eb0b934d5bd4e.exe PID 1572 wrote to memory of 1996 1572 c67670460262b6989bf0c63768bbb7be30286c3ce652d699831eb0b934d5bd4e.exe c67670460262b6989bf0c63768bbb7be30286c3ce652d699831eb0b934d5bd4e.exe PID 1572 wrote to memory of 1996 1572 c67670460262b6989bf0c63768bbb7be30286c3ce652d699831eb0b934d5bd4e.exe c67670460262b6989bf0c63768bbb7be30286c3ce652d699831eb0b934d5bd4e.exe PID 1572 wrote to memory of 1996 1572 c67670460262b6989bf0c63768bbb7be30286c3ce652d699831eb0b934d5bd4e.exe c67670460262b6989bf0c63768bbb7be30286c3ce652d699831eb0b934d5bd4e.exe PID 1572 wrote to memory of 1996 1572 c67670460262b6989bf0c63768bbb7be30286c3ce652d699831eb0b934d5bd4e.exe c67670460262b6989bf0c63768bbb7be30286c3ce652d699831eb0b934d5bd4e.exe PID 1572 wrote to memory of 1996 1572 c67670460262b6989bf0c63768bbb7be30286c3ce652d699831eb0b934d5bd4e.exe c67670460262b6989bf0c63768bbb7be30286c3ce652d699831eb0b934d5bd4e.exe PID 1572 wrote to memory of 1996 1572 c67670460262b6989bf0c63768bbb7be30286c3ce652d699831eb0b934d5bd4e.exe c67670460262b6989bf0c63768bbb7be30286c3ce652d699831eb0b934d5bd4e.exe PID 1572 wrote to memory of 1996 1572 c67670460262b6989bf0c63768bbb7be30286c3ce652d699831eb0b934d5bd4e.exe c67670460262b6989bf0c63768bbb7be30286c3ce652d699831eb0b934d5bd4e.exe PID 1572 wrote to memory of 1996 1572 c67670460262b6989bf0c63768bbb7be30286c3ce652d699831eb0b934d5bd4e.exe c67670460262b6989bf0c63768bbb7be30286c3ce652d699831eb0b934d5bd4e.exe PID 1996 wrote to memory of 1716 1996 c67670460262b6989bf0c63768bbb7be30286c3ce652d699831eb0b934d5bd4e.exe Winlogon.exe PID 1996 wrote to memory of 1716 1996 c67670460262b6989bf0c63768bbb7be30286c3ce652d699831eb0b934d5bd4e.exe Winlogon.exe PID 1996 wrote to memory of 1716 1996 c67670460262b6989bf0c63768bbb7be30286c3ce652d699831eb0b934d5bd4e.exe Winlogon.exe PID 1996 wrote to memory of 1716 1996 c67670460262b6989bf0c63768bbb7be30286c3ce652d699831eb0b934d5bd4e.exe Winlogon.exe PID 1716 wrote to memory of 1692 1716 Winlogon.exe Winlogon.exe PID 1716 wrote to memory of 1692 1716 Winlogon.exe Winlogon.exe PID 1716 wrote to memory of 1692 1716 Winlogon.exe Winlogon.exe PID 1716 wrote to memory of 1692 1716 Winlogon.exe Winlogon.exe PID 1716 wrote to memory of 1692 1716 Winlogon.exe Winlogon.exe PID 1716 wrote to memory of 1692 1716 Winlogon.exe Winlogon.exe PID 1716 wrote to memory of 1692 1716 Winlogon.exe Winlogon.exe PID 1716 wrote to memory of 1692 1716 Winlogon.exe Winlogon.exe PID 1716 wrote to memory of 1692 1716 Winlogon.exe Winlogon.exe PID 1692 wrote to memory of 588 1692 Winlogon.exe netsh.exe PID 1692 wrote to memory of 588 1692 Winlogon.exe netsh.exe PID 1692 wrote to memory of 588 1692 Winlogon.exe netsh.exe PID 1692 wrote to memory of 588 1692 Winlogon.exe netsh.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\c67670460262b6989bf0c63768bbb7be30286c3ce652d699831eb0b934d5bd4e.exe"C:\Users\Admin\AppData\Local\Temp\c67670460262b6989bf0c63768bbb7be30286c3ce652d699831eb0b934d5bd4e.exe"1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1572 -
C:\Users\Admin\AppData\Local\Temp\c67670460262b6989bf0c63768bbb7be30286c3ce652d699831eb0b934d5bd4e.exe"C:\Users\Admin\AppData\Local\Temp\c67670460262b6989bf0c63768bbb7be30286c3ce652d699831eb0b934d5bd4e.exe"2⤵
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1996 -
C:\Users\Admin\AppData\Local\Temp\Winlogon.exe"C:\Users\Admin\AppData\Local\Temp\Winlogon.exe"3⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1716 -
C:\Users\Admin\AppData\Local\Temp\Winlogon.exe"C:\Users\Admin\AppData\Local\Temp\Winlogon.exe"4⤵
- Executes dropped EXE
- Drops startup file
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1692 -
C:\Windows\SysWOW64\netsh.exenetsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\Winlogon.exe" "Winlogon.exe" ENABLE5⤵
- Modifies Windows Firewall
PID:588
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Local\Temp\Winlogon.exeFilesize
105KB
MD592c535addeff7ecac919e373556bfb79
SHA1a50acb99696bd4ddc1556610f3d0427188572056
SHA256c67670460262b6989bf0c63768bbb7be30286c3ce652d699831eb0b934d5bd4e
SHA5128acc0fbbfa89f85d7a81e8f60faad0734dfe5e7a48d9ea14904143dfc5e5ab3a6ead840aad03137299b93d177bf6fd15632aae02713b2bf8d3a14959d1a849f7
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C:\Users\Admin\AppData\Local\Temp\Winlogon.exeFilesize
105KB
MD592c535addeff7ecac919e373556bfb79
SHA1a50acb99696bd4ddc1556610f3d0427188572056
SHA256c67670460262b6989bf0c63768bbb7be30286c3ce652d699831eb0b934d5bd4e
SHA5128acc0fbbfa89f85d7a81e8f60faad0734dfe5e7a48d9ea14904143dfc5e5ab3a6ead840aad03137299b93d177bf6fd15632aae02713b2bf8d3a14959d1a849f7
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C:\Users\Admin\AppData\Local\Temp\Winlogon.exeFilesize
105KB
MD592c535addeff7ecac919e373556bfb79
SHA1a50acb99696bd4ddc1556610f3d0427188572056
SHA256c67670460262b6989bf0c63768bbb7be30286c3ce652d699831eb0b934d5bd4e
SHA5128acc0fbbfa89f85d7a81e8f60faad0734dfe5e7a48d9ea14904143dfc5e5ab3a6ead840aad03137299b93d177bf6fd15632aae02713b2bf8d3a14959d1a849f7
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\Users\Admin\AppData\Local\Temp\Winlogon.exeFilesize
105KB
MD592c535addeff7ecac919e373556bfb79
SHA1a50acb99696bd4ddc1556610f3d0427188572056
SHA256c67670460262b6989bf0c63768bbb7be30286c3ce652d699831eb0b934d5bd4e
SHA5128acc0fbbfa89f85d7a81e8f60faad0734dfe5e7a48d9ea14904143dfc5e5ab3a6ead840aad03137299b93d177bf6fd15632aae02713b2bf8d3a14959d1a849f7
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\Users\Admin\AppData\Local\Temp\Winlogon.exeFilesize
105KB
MD592c535addeff7ecac919e373556bfb79
SHA1a50acb99696bd4ddc1556610f3d0427188572056
SHA256c67670460262b6989bf0c63768bbb7be30286c3ce652d699831eb0b934d5bd4e
SHA5128acc0fbbfa89f85d7a81e8f60faad0734dfe5e7a48d9ea14904143dfc5e5ab3a6ead840aad03137299b93d177bf6fd15632aae02713b2bf8d3a14959d1a849f7
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memory/588-85-0x0000000000000000-mapping.dmp
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memory/1572-55-0x0000000076121000-0x0000000076123000-memory.dmpFilesize
8KB
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memory/1572-56-0x00000000005C0000-0x00000000005CA000-memory.dmpFilesize
40KB
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memory/1572-54-0x0000000000400000-0x0000000000422000-memory.dmpFilesize
136KB
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memory/1692-80-0x000000000040993E-mapping.dmp
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memory/1716-70-0x0000000000000000-mapping.dmp
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memory/1996-60-0x0000000000400000-0x000000000040E000-memory.dmpFilesize
56KB
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memory/1996-67-0x0000000000400000-0x000000000040E000-memory.dmpFilesize
56KB
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memory/1996-65-0x0000000000402000-0x0000000000409A00-memory.dmpFilesize
30KB
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memory/1996-66-0x0000000000402000-0x0000000000409A00-memory.dmpFilesize
30KB
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memory/1996-63-0x000000000040993E-mapping.dmp
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memory/1996-62-0x0000000000400000-0x000000000040E000-memory.dmpFilesize
56KB
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memory/1996-61-0x0000000000400000-0x000000000040E000-memory.dmpFilesize
56KB
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memory/1996-58-0x0000000000400000-0x000000000040E000-memory.dmpFilesize
56KB
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memory/1996-57-0x0000000000400000-0x000000000040E000-memory.dmpFilesize
56KB