Analysis
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max time kernel
152s -
max time network
158s -
platform
windows10-2004_x64 -
resource
win10v2004-20221111-en -
resource tags
arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system -
submitted
24-11-2022 23:45
Static task
static1
Behavioral task
behavioral1
Sample
74141b33cb70767bc1f209294a7adc1ae49023d8bc787949af279c8a887a31d2.exe
Resource
win7-20221111-en
Behavioral task
behavioral2
Sample
74141b33cb70767bc1f209294a7adc1ae49023d8bc787949af279c8a887a31d2.exe
Resource
win10v2004-20221111-en
General
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Target
74141b33cb70767bc1f209294a7adc1ae49023d8bc787949af279c8a887a31d2.exe
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Size
291KB
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MD5
591d35eceed971ffc728aa479785f727
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SHA1
a571ee77a4dde3ad1b7ce5336740c99e3d5e5510
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SHA256
74141b33cb70767bc1f209294a7adc1ae49023d8bc787949af279c8a887a31d2
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SHA512
12f9823bc9a8d0700c3530ee46093806fb7308fe5cdee378806961ab16a94e136a7bc4f0a4c88c751a637179f077a8a6c537f4884f0834d29a47868f8d0d49e8
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SSDEEP
6144:9KTzhGiX6SRfPcKaqp5oe5dPLHgm2sYHr5AvnMt9LRlmIeKr/A3VAy0aHNG:9KT6i3LpeQPLHgm2sYHr6nWlmIeKLA3i
Malware Config
Signatures
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Executes dropped EXE 1 IoCs
Processes:
zlmmcdeq.exepid process 1272 zlmmcdeq.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
74141b33cb70767bc1f209294a7adc1ae49023d8bc787949af279c8a887a31d2.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-4060001867-1434967833-2212371794-1000\Control Panel\International\Geo\Nation 74141b33cb70767bc1f209294a7adc1ae49023d8bc787949af279c8a887a31d2.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
zlmmcdeq.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\NTkxRDM1RUNFRUQ5NzFGRk = "C:\\ProgramData\\zlmmcdeq.exe" zlmmcdeq.exe -
Drops desktop.ini file(s) 2 IoCs
Processes:
74141b33cb70767bc1f209294a7adc1ae49023d8bc787949af279c8a887a31d2.exedescription ioc process File created C:\Windows\assembly\Desktop.ini 74141b33cb70767bc1f209294a7adc1ae49023d8bc787949af279c8a887a31d2.exe File opened for modification C:\Windows\assembly\Desktop.ini 74141b33cb70767bc1f209294a7adc1ae49023d8bc787949af279c8a887a31d2.exe -
Drops file in Windows directory 3 IoCs
Processes:
74141b33cb70767bc1f209294a7adc1ae49023d8bc787949af279c8a887a31d2.exedescription ioc process File opened for modification C:\Windows\assembly 74141b33cb70767bc1f209294a7adc1ae49023d8bc787949af279c8a887a31d2.exe File created C:\Windows\assembly\Desktop.ini 74141b33cb70767bc1f209294a7adc1ae49023d8bc787949af279c8a887a31d2.exe File opened for modification C:\Windows\assembly\Desktop.ini 74141b33cb70767bc1f209294a7adc1ae49023d8bc787949af279c8a887a31d2.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Checks processor information in registry 2 TTPs 4 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
74141b33cb70767bc1f209294a7adc1ae49023d8bc787949af279c8a887a31d2.exezlmmcdeq.exedescription ioc process Key opened \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 74141b33cb70767bc1f209294a7adc1ae49023d8bc787949af279c8a887a31d2.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier 74141b33cb70767bc1f209294a7adc1ae49023d8bc787949af279c8a887a31d2.exe Key opened \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 zlmmcdeq.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier zlmmcdeq.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
74141b33cb70767bc1f209294a7adc1ae49023d8bc787949af279c8a887a31d2.exezlmmcdeq.exedescription pid process Token: SeDebugPrivilege 2272 74141b33cb70767bc1f209294a7adc1ae49023d8bc787949af279c8a887a31d2.exe Token: SeDebugPrivilege 1272 zlmmcdeq.exe -
Suspicious use of WriteProcessMemory 3 IoCs
Processes:
74141b33cb70767bc1f209294a7adc1ae49023d8bc787949af279c8a887a31d2.exedescription pid process target process PID 2272 wrote to memory of 1272 2272 74141b33cb70767bc1f209294a7adc1ae49023d8bc787949af279c8a887a31d2.exe zlmmcdeq.exe PID 2272 wrote to memory of 1272 2272 74141b33cb70767bc1f209294a7adc1ae49023d8bc787949af279c8a887a31d2.exe zlmmcdeq.exe PID 2272 wrote to memory of 1272 2272 74141b33cb70767bc1f209294a7adc1ae49023d8bc787949af279c8a887a31d2.exe zlmmcdeq.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\74141b33cb70767bc1f209294a7adc1ae49023d8bc787949af279c8a887a31d2.exe"C:\Users\Admin\AppData\Local\Temp\74141b33cb70767bc1f209294a7adc1ae49023d8bc787949af279c8a887a31d2.exe"1⤵
- Checks computer location settings
- Drops desktop.ini file(s)
- Drops file in Windows directory
- Checks processor information in registry
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\ProgramData\zlmmcdeq.exe"C:\ProgramData\zlmmcdeq.exe"2⤵
- Executes dropped EXE
- Adds Run key to start application
- Checks processor information in registry
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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C:\ProgramData\zlmmcdeq.exeFilesize
291KB
MD5591d35eceed971ffc728aa479785f727
SHA1a571ee77a4dde3ad1b7ce5336740c99e3d5e5510
SHA25674141b33cb70767bc1f209294a7adc1ae49023d8bc787949af279c8a887a31d2
SHA51212f9823bc9a8d0700c3530ee46093806fb7308fe5cdee378806961ab16a94e136a7bc4f0a4c88c751a637179f077a8a6c537f4884f0834d29a47868f8d0d49e8
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C:\ProgramData\zlmmcdeq.exeFilesize
291KB
MD5591d35eceed971ffc728aa479785f727
SHA1a571ee77a4dde3ad1b7ce5336740c99e3d5e5510
SHA25674141b33cb70767bc1f209294a7adc1ae49023d8bc787949af279c8a887a31d2
SHA51212f9823bc9a8d0700c3530ee46093806fb7308fe5cdee378806961ab16a94e136a7bc4f0a4c88c751a637179f077a8a6c537f4884f0834d29a47868f8d0d49e8
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memory/1272-134-0x0000000000000000-mapping.dmp
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memory/1272-138-0x0000000074670000-0x0000000074C21000-memory.dmpFilesize
5.7MB
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memory/1272-139-0x0000000074670000-0x0000000074C21000-memory.dmpFilesize
5.7MB
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memory/2272-132-0x0000000074670000-0x0000000074C21000-memory.dmpFilesize
5.7MB
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memory/2272-133-0x0000000074670000-0x0000000074C21000-memory.dmpFilesize
5.7MB
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memory/2272-137-0x0000000074670000-0x0000000074C21000-memory.dmpFilesize
5.7MB