Analysis
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max time kernel
148s -
max time network
149s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
06/03/2024, 00:44
Static task
static1
Behavioral task
behavioral1
Sample
c01448c3602bc934e4a79e4cce8f6c719bfc14f39b9c6b199d3f6cb63229ef57.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
c01448c3602bc934e4a79e4cce8f6c719bfc14f39b9c6b199d3f6cb63229ef57.exe
Resource
win10v2004-20240226-en
General
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Target
c01448c3602bc934e4a79e4cce8f6c719bfc14f39b9c6b199d3f6cb63229ef57.exe
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Size
41KB
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MD5
a65753e627ccb170fca82a1188b3910c
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SHA1
d0fbbaddc1549dcafbf5e315e6262e025f8c0c8f
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SHA256
c01448c3602bc934e4a79e4cce8f6c719bfc14f39b9c6b199d3f6cb63229ef57
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SHA512
bc2063fdfaead881a6010f93777a173564da941a6f1834b74a031ed8e09897bf527dbb6cadf8ed3e43ef20f7c006a115fc92d7fe2525863441a86ed9e304d516
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SSDEEP
768:4+CqeOuYnTYIF0sjBPVECJJRM1Ck/l7Iv+OjoY:P+lCY4uQJRM1CGlUBoY
Malware Config
Signatures
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Modifies firewall policy service 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\C:\Users\Admin\AppData\Roaming\winmsgr111.exe = "C:\\Users\\Admin\\AppData\\Roaming\\winmsgr111.exe:*:Enabled:thth54hy" winmsgr111.exe -
Executes dropped EXE 1 IoCs
pid Process 2572 winmsgr111.exe -
Loads dropped DLL 2 IoCs
pid Process 1728 c01448c3602bc934e4a79e4cce8f6c719bfc14f39b9c6b199d3f6cb63229ef57.exe 1728 c01448c3602bc934e4a79e4cce8f6c719bfc14f39b9c6b199d3f6cb63229ef57.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Windows\CurrentVersion\Run\tht4545ttr = "C:\\Users\\Admin\\AppData\\Roaming\\winmsgr111.exe" c01448c3602bc934e4a79e4cce8f6c719bfc14f39b9c6b199d3f6cb63229ef57.exe -
Modifies WinLogon 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Taskman = "C:\\Users\\Admin\\AppData\\Roaming\\winmsgr111.exe" c01448c3602bc934e4a79e4cce8f6c719bfc14f39b9c6b199d3f6cb63229ef57.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 1728 wrote to memory of 2572 1728 c01448c3602bc934e4a79e4cce8f6c719bfc14f39b9c6b199d3f6cb63229ef57.exe 28 PID 1728 wrote to memory of 2572 1728 c01448c3602bc934e4a79e4cce8f6c719bfc14f39b9c6b199d3f6cb63229ef57.exe 28 PID 1728 wrote to memory of 2572 1728 c01448c3602bc934e4a79e4cce8f6c719bfc14f39b9c6b199d3f6cb63229ef57.exe 28 PID 1728 wrote to memory of 2572 1728 c01448c3602bc934e4a79e4cce8f6c719bfc14f39b9c6b199d3f6cb63229ef57.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\c01448c3602bc934e4a79e4cce8f6c719bfc14f39b9c6b199d3f6cb63229ef57.exe"C:\Users\Admin\AppData\Local\Temp\c01448c3602bc934e4a79e4cce8f6c719bfc14f39b9c6b199d3f6cb63229ef57.exe"1⤵
- Loads dropped DLL
- Adds Run key to start application
- Modifies WinLogon
- Suspicious use of WriteProcessMemory
PID:1728 -
C:\Users\Admin\AppData\Roaming\winmsgr111.exe"C:\Users\Admin\AppData\Roaming\winmsgr111.exe"2⤵
- Modifies firewall policy service
- Executes dropped EXE
PID:2572
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Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
1Winlogon Helper DLL
1Create or Modify System Process
1Windows Service
1Replay Monitor
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Downloads
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Filesize
41KB
MD5a65753e627ccb170fca82a1188b3910c
SHA1d0fbbaddc1549dcafbf5e315e6262e025f8c0c8f
SHA256c01448c3602bc934e4a79e4cce8f6c719bfc14f39b9c6b199d3f6cb63229ef57
SHA512bc2063fdfaead881a6010f93777a173564da941a6f1834b74a031ed8e09897bf527dbb6cadf8ed3e43ef20f7c006a115fc92d7fe2525863441a86ed9e304d516