Analysis
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max time kernel
39s -
max time network
99s -
platform
windows10_x64 -
resource
win10v20201028 -
submitted
27-03-2021 20:26
Behavioral task
behavioral1
Sample
Control.exe
Resource
win7v20201028
Behavioral task
behavioral2
Sample
Control.exe
Resource
win10v20201028
General
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Target
Control.exe
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Size
1.9MB
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MD5
d86f451bbff804e59a549f9fb33d6e3f
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SHA1
3cb0cb07cc2542f1d98060adccda726ea865db98
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SHA256
008ec79765325200361d9c93ac35edd430f8b17894ff843268caa5acd6224549
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SHA512
c86ad7e1d5c445d4de9866faab578b2eb04f72ffef4fac380b7164003471b4b48b09772e735ea15205e2ab4a1f4d194d188cdeb12c7199d0824ddaba393dcaa2
Malware Config
Signatures
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Processes:
resource yara_rule C:\Users\Admin\AppData\Roaming\MsimeReceiver\Method cryptone C:\Users\Admin\AppData\Roaming\MsimeReceiver\Method cryptone -
Executes dropped EXE 1 IoCs
Processes:
Methodpid process 2880 Method -
Modifies extensions of user files 20 IoCs
Ransomware generally changes the extension on encrypted files.
Processes:
Methoddescription ioc process File renamed C:\Users\Admin\Pictures\CompressMount.tiff => C:\Users\Admin\Pictures\CompressMount.tiff.phoenix Method File renamed C:\Users\Admin\Pictures\ConvertExit.raw => C:\Users\Admin\Pictures\ConvertExit.raw.phoenix Method File opened for modification C:\Users\Admin\Pictures\RenamePing.png.phoenix Method File opened for modification C:\Users\Admin\Pictures\StepCompress.tif.phoenix Method File renamed C:\Users\Admin\Pictures\SyncEdit.tiff => C:\Users\Admin\Pictures\SyncEdit.tiff.phoenix Method File opened for modification C:\Users\Admin\Pictures\CompressMount.tiff.phoenix Method File opened for modification C:\Users\Admin\Pictures\DismountResume.png.phoenix Method File opened for modification C:\Users\Admin\Pictures\RevokePush.tiff.phoenix Method File renamed C:\Users\Admin\Pictures\UpdateMerge.raw => C:\Users\Admin\Pictures\UpdateMerge.raw.phoenix Method File opened for modification C:\Users\Admin\Pictures\UpdateMerge.raw.phoenix Method File renamed C:\Users\Admin\Pictures\BackupMeasure.crw => C:\Users\Admin\Pictures\BackupMeasure.crw.phoenix Method File opened for modification C:\Users\Admin\Pictures\BackupMeasure.crw.phoenix Method File opened for modification C:\Users\Admin\Pictures\ConvertExit.raw.phoenix Method File renamed C:\Users\Admin\Pictures\RevokePush.tiff => C:\Users\Admin\Pictures\RevokePush.tiff.phoenix Method File renamed C:\Users\Admin\Pictures\UndoSplit.tif => C:\Users\Admin\Pictures\UndoSplit.tif.phoenix Method File renamed C:\Users\Admin\Pictures\DismountResume.png => C:\Users\Admin\Pictures\DismountResume.png.phoenix Method File renamed C:\Users\Admin\Pictures\RenamePing.png => C:\Users\Admin\Pictures\RenamePing.png.phoenix Method File renamed C:\Users\Admin\Pictures\StepCompress.tif => C:\Users\Admin\Pictures\StepCompress.tif.phoenix Method File opened for modification C:\Users\Admin\Pictures\SyncEdit.tiff.phoenix Method File opened for modification C:\Users\Admin\Pictures\UndoSplit.tif.phoenix Method -
Suspicious use of WriteProcessMemory 14 IoCs
Processes:
Control.exeMethodcmd.execmd.exedescription pid process target process PID 1320 wrote to memory of 2880 1320 Control.exe Method PID 1320 wrote to memory of 2880 1320 Control.exe Method PID 2880 wrote to memory of 372 2880 Method cmd.exe PID 2880 wrote to memory of 372 2880 Method cmd.exe PID 1320 wrote to memory of 976 1320 Control.exe cmd.exe PID 1320 wrote to memory of 976 1320 Control.exe cmd.exe PID 372 wrote to memory of 3976 372 cmd.exe waitfor.exe PID 372 wrote to memory of 3976 372 cmd.exe waitfor.exe PID 976 wrote to memory of 1524 976 cmd.exe waitfor.exe PID 976 wrote to memory of 1524 976 cmd.exe waitfor.exe PID 372 wrote to memory of 4088 372 cmd.exe attrib.exe PID 372 wrote to memory of 4088 372 cmd.exe attrib.exe PID 976 wrote to memory of 4036 976 cmd.exe attrib.exe PID 976 wrote to memory of 4036 976 cmd.exe attrib.exe -
Views/modifies file attributes 1 TTPs 2 IoCs
Processes:
attrib.exeattrib.exepid process 4088 attrib.exe 4036 attrib.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\Control.exe"C:\Users\Admin\AppData\Local\Temp\Control.exe"1⤵
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Roaming\MsimeReceiver\MethodC:\Users\Admin\AppData\Roaming\MsimeReceiver\Method /go2⤵
- Executes dropped EXE
- Modifies extensions of user files
- Suspicious use of WriteProcessMemory
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C:\Windows\SYSTEM32\cmd.execmd /c waitfor /t 10 pause /d y & attrib -h "C:\Users\Admin\AppData\Roaming\MsimeReceiver\Method" & del "C:\Users\Admin\AppData\Roaming\MsimeReceiver\Method" & rd "C:\Users\Admin\AppData\Roaming\MsimeReceiver\"3⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\waitfor.exewaitfor /t 10 pause /d y4⤵
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C:\Windows\system32\attrib.exeattrib -h "C:\Users\Admin\AppData\Roaming\MsimeReceiver\Method"4⤵
- Views/modifies file attributes
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C:\Windows\SYSTEM32\cmd.execmd /c waitfor /t 10 pause /d y & attrib -h "C:\Users\Admin\AppData\Local\Temp\Control.exe" & del "C:\Users\Admin\AppData\Local\Temp\Control.exe" & rd "C:\Users\Admin\AppData\Local\Temp\"2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\waitfor.exewaitfor /t 10 pause /d y3⤵
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C:\Windows\system32\attrib.exeattrib -h "C:\Users\Admin\AppData\Local\Temp\Control.exe"3⤵
- Views/modifies file attributes
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Roaming\MsimeReceiver\MethodMD5
d86f451bbff804e59a549f9fb33d6e3f
SHA13cb0cb07cc2542f1d98060adccda726ea865db98
SHA256008ec79765325200361d9c93ac35edd430f8b17894ff843268caa5acd6224549
SHA512c86ad7e1d5c445d4de9866faab578b2eb04f72ffef4fac380b7164003471b4b48b09772e735ea15205e2ab4a1f4d194d188cdeb12c7199d0824ddaba393dcaa2
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C:\Users\Admin\AppData\Roaming\MsimeReceiver\MethodMD5
d86f451bbff804e59a549f9fb33d6e3f
SHA13cb0cb07cc2542f1d98060adccda726ea865db98
SHA256008ec79765325200361d9c93ac35edd430f8b17894ff843268caa5acd6224549
SHA512c86ad7e1d5c445d4de9866faab578b2eb04f72ffef4fac380b7164003471b4b48b09772e735ea15205e2ab4a1f4d194d188cdeb12c7199d0824ddaba393dcaa2
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memory/372-7-0x0000000000000000-mapping.dmp
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memory/976-8-0x0000000000000000-mapping.dmp
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memory/1320-4-0x0000000002010000-0x00000000021D0000-memory.dmpFilesize
1.8MB
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memory/1524-10-0x0000000000000000-mapping.dmp
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memory/2880-2-0x0000000000000000-mapping.dmp
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memory/3976-9-0x0000000000000000-mapping.dmp
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memory/4036-12-0x0000000000000000-mapping.dmp
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memory/4088-11-0x0000000000000000-mapping.dmp