Analysis
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max time kernel
60s -
max time network
68s -
platform
windows10_x64 -
resource
win10v20201028 -
submitted
27-03-2021 08:30
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\SetupOem\Alg cryptone C:\Users\Admin\AppData\Roaming\SetupOem\Alg cryptone -
Executes dropped EXE 1 IoCs
Processes:
Algpid process 788 Alg -
Modifies extensions of user files 14 IoCs
Ransomware generally changes the extension on encrypted files.
Processes:
Algdescription ioc process File opened for modification C:\Users\Admin\Pictures\GetRestart.tiff.phoenix Alg File renamed C:\Users\Admin\Pictures\RegisterShow.tiff => C:\Users\Admin\Pictures\RegisterShow.tiff.phoenix Alg File opened for modification C:\Users\Admin\Pictures\RegisterShow.tiff.phoenix Alg File opened for modification C:\Users\Admin\Pictures\SelectPublish.tif.phoenix Alg File opened for modification C:\Users\Admin\Pictures\SyncConvertTo.tif.phoenix Alg File renamed C:\Users\Admin\Pictures\GetRestart.tiff => C:\Users\Admin\Pictures\GetRestart.tiff.phoenix Alg File renamed C:\Users\Admin\Pictures\LockUninstall.png => C:\Users\Admin\Pictures\LockUninstall.png.phoenix Alg File renamed C:\Users\Admin\Pictures\SyncConvertTo.tif => C:\Users\Admin\Pictures\SyncConvertTo.tif.phoenix Alg File renamed C:\Users\Admin\Pictures\CompareTest.raw => C:\Users\Admin\Pictures\CompareTest.raw.phoenix Alg File opened for modification C:\Users\Admin\Pictures\CompareTest.raw.phoenix Alg File renamed C:\Users\Admin\Pictures\InvokeReset.raw => C:\Users\Admin\Pictures\InvokeReset.raw.phoenix Alg File opened for modification C:\Users\Admin\Pictures\InvokeReset.raw.phoenix Alg File opened for modification C:\Users\Admin\Pictures\LockUninstall.png.phoenix Alg File renamed C:\Users\Admin\Pictures\SelectPublish.tif => C:\Users\Admin\Pictures\SelectPublish.tif.phoenix Alg -
Suspicious use of WriteProcessMemory 14 IoCs
Processes:
Control.exeAlgcmd.execmd.exedescription pid process target process PID 1456 wrote to memory of 788 1456 Control.exe Alg PID 1456 wrote to memory of 788 1456 Control.exe Alg PID 788 wrote to memory of 632 788 Alg cmd.exe PID 788 wrote to memory of 632 788 Alg cmd.exe PID 1456 wrote to memory of 2728 1456 Control.exe cmd.exe PID 1456 wrote to memory of 2728 1456 Control.exe cmd.exe PID 632 wrote to memory of 2756 632 cmd.exe waitfor.exe PID 632 wrote to memory of 2756 632 cmd.exe waitfor.exe PID 2728 wrote to memory of 1824 2728 cmd.exe waitfor.exe PID 2728 wrote to memory of 1824 2728 cmd.exe waitfor.exe PID 2728 wrote to memory of 500 2728 cmd.exe attrib.exe PID 2728 wrote to memory of 500 2728 cmd.exe attrib.exe PID 632 wrote to memory of 2904 632 cmd.exe attrib.exe PID 632 wrote to memory of 2904 632 cmd.exe attrib.exe -
Views/modifies file attributes 1 TTPs 2 IoCs
Processes:
attrib.exeattrib.exepid process 500 attrib.exe 2904 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\SetupOem\AlgC:\Users\Admin\AppData\Roaming\SetupOem\Alg /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\SetupOem\Alg" & del "C:\Users\Admin\AppData\Roaming\SetupOem\Alg" & rd "C:\Users\Admin\AppData\Roaming\SetupOem\"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\SetupOem\Alg"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\SetupOem\AlgMD5
d86f451bbff804e59a549f9fb33d6e3f
SHA13cb0cb07cc2542f1d98060adccda726ea865db98
SHA256008ec79765325200361d9c93ac35edd430f8b17894ff843268caa5acd6224549
SHA512c86ad7e1d5c445d4de9866faab578b2eb04f72ffef4fac380b7164003471b4b48b09772e735ea15205e2ab4a1f4d194d188cdeb12c7199d0824ddaba393dcaa2
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C:\Users\Admin\AppData\Roaming\SetupOem\AlgMD5
d86f451bbff804e59a549f9fb33d6e3f
SHA13cb0cb07cc2542f1d98060adccda726ea865db98
SHA256008ec79765325200361d9c93ac35edd430f8b17894ff843268caa5acd6224549
SHA512c86ad7e1d5c445d4de9866faab578b2eb04f72ffef4fac380b7164003471b4b48b09772e735ea15205e2ab4a1f4d194d188cdeb12c7199d0824ddaba393dcaa2
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memory/500-11-0x0000000000000000-mapping.dmp
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memory/632-7-0x0000000000000000-mapping.dmp
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memory/788-3-0x0000000000000000-mapping.dmp
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memory/1456-2-0x0000000002010000-0x00000000021D0000-memory.dmpFilesize
1.8MB
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memory/1824-10-0x0000000000000000-mapping.dmp
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memory/2728-8-0x0000000000000000-mapping.dmp
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memory/2756-9-0x0000000000000000-mapping.dmp
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memory/2904-12-0x0000000000000000-mapping.dmp