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Analysis
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max time kernel
167s -
max time network
177s -
platform
windows10-2004_x64 -
resource
win10v2004-en-20220112 -
submitted
01/02/2022, 15:25
Static task
static1
Behavioral task
behavioral1
Sample
ddb4776992155b9c5a26b47b53df2fed780c67b45eca5cbdf573e0dc3c20c371.exe
Resource
win7-en-20211208
Behavioral task
behavioral2
Sample
ddb4776992155b9c5a26b47b53df2fed780c67b45eca5cbdf573e0dc3c20c371.exe
Resource
win10v2004-en-20220112
General
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Target
ddb4776992155b9c5a26b47b53df2fed780c67b45eca5cbdf573e0dc3c20c371.exe
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Size
669KB
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MD5
586ea3d9d6c6fbc7c8a5304cad24c602
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SHA1
fd7079147416f181d2515c692dd6507274fbcb18
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SHA256
ddb4776992155b9c5a26b47b53df2fed780c67b45eca5cbdf573e0dc3c20c371
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SHA512
f83fc41cbcb27819a2411e617650a50f198d77f0d61715f99aa7e90be83156155d01cb9b80473c52e5cfaa5af7f02d894eca4a2ffd7fb0c89598f05f1a82cd62
Malware Config
Extracted
C:\HOW_TO_RECOVER_DATA.html
http-equiv="X-UA-Compatible"
http://meyerweb.com/eric/tools/css/reset/
Signatures
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MedusaLocker
Ransomware with several variants first seen in September 2019.
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MedusaLocker Payload 2 IoCs
resource yara_rule behavioral2/files/0x000a00000002140d-130.dat family_medusalocker behavioral2/files/0x000a00000002140d-131.dat family_medusalocker -
Executes dropped EXE 1 IoCs
pid Process 3764 svhost.exe -
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" ddb4776992155b9c5a26b47b53df2fed780c67b45eca5cbdf573e0dc3c20c371.exe -
Drops desktop.ini file(s) 1 IoCs
description ioc Process File opened for modification \??\Z:\$RECYCLE.BIN\S-1-5-21-790714498-1549421491-1643397139-1000\desktop.ini ddb4776992155b9c5a26b47b53df2fed780c67b45eca5cbdf573e0dc3c20c371.exe -
Enumerates connected drives 3 TTPs 24 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
description ioc Process File opened (read-only) \??\T: ddb4776992155b9c5a26b47b53df2fed780c67b45eca5cbdf573e0dc3c20c371.exe File opened (read-only) \??\X: ddb4776992155b9c5a26b47b53df2fed780c67b45eca5cbdf573e0dc3c20c371.exe File opened (read-only) \??\Y: ddb4776992155b9c5a26b47b53df2fed780c67b45eca5cbdf573e0dc3c20c371.exe File opened (read-only) \??\B: ddb4776992155b9c5a26b47b53df2fed780c67b45eca5cbdf573e0dc3c20c371.exe File opened (read-only) \??\N: ddb4776992155b9c5a26b47b53df2fed780c67b45eca5cbdf573e0dc3c20c371.exe File opened (read-only) \??\O: ddb4776992155b9c5a26b47b53df2fed780c67b45eca5cbdf573e0dc3c20c371.exe File opened (read-only) \??\Q: ddb4776992155b9c5a26b47b53df2fed780c67b45eca5cbdf573e0dc3c20c371.exe File opened (read-only) \??\L: ddb4776992155b9c5a26b47b53df2fed780c67b45eca5cbdf573e0dc3c20c371.exe File opened (read-only) \??\M: ddb4776992155b9c5a26b47b53df2fed780c67b45eca5cbdf573e0dc3c20c371.exe File opened (read-only) \??\R: ddb4776992155b9c5a26b47b53df2fed780c67b45eca5cbdf573e0dc3c20c371.exe File opened (read-only) \??\S: ddb4776992155b9c5a26b47b53df2fed780c67b45eca5cbdf573e0dc3c20c371.exe File opened (read-only) \??\A: ddb4776992155b9c5a26b47b53df2fed780c67b45eca5cbdf573e0dc3c20c371.exe File opened (read-only) \??\G: ddb4776992155b9c5a26b47b53df2fed780c67b45eca5cbdf573e0dc3c20c371.exe File opened (read-only) \??\H: ddb4776992155b9c5a26b47b53df2fed780c67b45eca5cbdf573e0dc3c20c371.exe File opened (read-only) \??\J: ddb4776992155b9c5a26b47b53df2fed780c67b45eca5cbdf573e0dc3c20c371.exe File opened (read-only) \??\U: ddb4776992155b9c5a26b47b53df2fed780c67b45eca5cbdf573e0dc3c20c371.exe File opened (read-only) \??\E: ddb4776992155b9c5a26b47b53df2fed780c67b45eca5cbdf573e0dc3c20c371.exe File opened (read-only) \??\I: ddb4776992155b9c5a26b47b53df2fed780c67b45eca5cbdf573e0dc3c20c371.exe File opened (read-only) \??\K: ddb4776992155b9c5a26b47b53df2fed780c67b45eca5cbdf573e0dc3c20c371.exe File opened (read-only) \??\Z: ddb4776992155b9c5a26b47b53df2fed780c67b45eca5cbdf573e0dc3c20c371.exe File opened (read-only) \??\F: ddb4776992155b9c5a26b47b53df2fed780c67b45eca5cbdf573e0dc3c20c371.exe File opened (read-only) \??\P: ddb4776992155b9c5a26b47b53df2fed780c67b45eca5cbdf573e0dc3c20c371.exe File opened (read-only) \??\V: ddb4776992155b9c5a26b47b53df2fed780c67b45eca5cbdf573e0dc3c20c371.exe File opened (read-only) \??\W: ddb4776992155b9c5a26b47b53df2fed780c67b45eca5cbdf573e0dc3c20c371.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 64 IoCs
pid Process 2444 ddb4776992155b9c5a26b47b53df2fed780c67b45eca5cbdf573e0dc3c20c371.exe 2444 ddb4776992155b9c5a26b47b53df2fed780c67b45eca5cbdf573e0dc3c20c371.exe 2444 ddb4776992155b9c5a26b47b53df2fed780c67b45eca5cbdf573e0dc3c20c371.exe 2444 ddb4776992155b9c5a26b47b53df2fed780c67b45eca5cbdf573e0dc3c20c371.exe 2444 ddb4776992155b9c5a26b47b53df2fed780c67b45eca5cbdf573e0dc3c20c371.exe 2444 ddb4776992155b9c5a26b47b53df2fed780c67b45eca5cbdf573e0dc3c20c371.exe 2444 ddb4776992155b9c5a26b47b53df2fed780c67b45eca5cbdf573e0dc3c20c371.exe 2444 ddb4776992155b9c5a26b47b53df2fed780c67b45eca5cbdf573e0dc3c20c371.exe 2444 ddb4776992155b9c5a26b47b53df2fed780c67b45eca5cbdf573e0dc3c20c371.exe 2444 ddb4776992155b9c5a26b47b53df2fed780c67b45eca5cbdf573e0dc3c20c371.exe 2444 ddb4776992155b9c5a26b47b53df2fed780c67b45eca5cbdf573e0dc3c20c371.exe 2444 ddb4776992155b9c5a26b47b53df2fed780c67b45eca5cbdf573e0dc3c20c371.exe 2444 ddb4776992155b9c5a26b47b53df2fed780c67b45eca5cbdf573e0dc3c20c371.exe 2444 ddb4776992155b9c5a26b47b53df2fed780c67b45eca5cbdf573e0dc3c20c371.exe 2444 ddb4776992155b9c5a26b47b53df2fed780c67b45eca5cbdf573e0dc3c20c371.exe 2444 ddb4776992155b9c5a26b47b53df2fed780c67b45eca5cbdf573e0dc3c20c371.exe 2444 ddb4776992155b9c5a26b47b53df2fed780c67b45eca5cbdf573e0dc3c20c371.exe 2444 ddb4776992155b9c5a26b47b53df2fed780c67b45eca5cbdf573e0dc3c20c371.exe 2444 ddb4776992155b9c5a26b47b53df2fed780c67b45eca5cbdf573e0dc3c20c371.exe 2444 ddb4776992155b9c5a26b47b53df2fed780c67b45eca5cbdf573e0dc3c20c371.exe 2444 ddb4776992155b9c5a26b47b53df2fed780c67b45eca5cbdf573e0dc3c20c371.exe 2444 ddb4776992155b9c5a26b47b53df2fed780c67b45eca5cbdf573e0dc3c20c371.exe 2444 ddb4776992155b9c5a26b47b53df2fed780c67b45eca5cbdf573e0dc3c20c371.exe 2444 ddb4776992155b9c5a26b47b53df2fed780c67b45eca5cbdf573e0dc3c20c371.exe 2444 ddb4776992155b9c5a26b47b53df2fed780c67b45eca5cbdf573e0dc3c20c371.exe 2444 ddb4776992155b9c5a26b47b53df2fed780c67b45eca5cbdf573e0dc3c20c371.exe 2444 ddb4776992155b9c5a26b47b53df2fed780c67b45eca5cbdf573e0dc3c20c371.exe 2444 ddb4776992155b9c5a26b47b53df2fed780c67b45eca5cbdf573e0dc3c20c371.exe 2444 ddb4776992155b9c5a26b47b53df2fed780c67b45eca5cbdf573e0dc3c20c371.exe 2444 ddb4776992155b9c5a26b47b53df2fed780c67b45eca5cbdf573e0dc3c20c371.exe 2444 ddb4776992155b9c5a26b47b53df2fed780c67b45eca5cbdf573e0dc3c20c371.exe 2444 ddb4776992155b9c5a26b47b53df2fed780c67b45eca5cbdf573e0dc3c20c371.exe 2444 ddb4776992155b9c5a26b47b53df2fed780c67b45eca5cbdf573e0dc3c20c371.exe 2444 ddb4776992155b9c5a26b47b53df2fed780c67b45eca5cbdf573e0dc3c20c371.exe 2444 ddb4776992155b9c5a26b47b53df2fed780c67b45eca5cbdf573e0dc3c20c371.exe 2444 ddb4776992155b9c5a26b47b53df2fed780c67b45eca5cbdf573e0dc3c20c371.exe 2444 ddb4776992155b9c5a26b47b53df2fed780c67b45eca5cbdf573e0dc3c20c371.exe 2444 ddb4776992155b9c5a26b47b53df2fed780c67b45eca5cbdf573e0dc3c20c371.exe 2444 ddb4776992155b9c5a26b47b53df2fed780c67b45eca5cbdf573e0dc3c20c371.exe 2444 ddb4776992155b9c5a26b47b53df2fed780c67b45eca5cbdf573e0dc3c20c371.exe 2444 ddb4776992155b9c5a26b47b53df2fed780c67b45eca5cbdf573e0dc3c20c371.exe 2444 ddb4776992155b9c5a26b47b53df2fed780c67b45eca5cbdf573e0dc3c20c371.exe 2444 ddb4776992155b9c5a26b47b53df2fed780c67b45eca5cbdf573e0dc3c20c371.exe 2444 ddb4776992155b9c5a26b47b53df2fed780c67b45eca5cbdf573e0dc3c20c371.exe 2444 ddb4776992155b9c5a26b47b53df2fed780c67b45eca5cbdf573e0dc3c20c371.exe 2444 ddb4776992155b9c5a26b47b53df2fed780c67b45eca5cbdf573e0dc3c20c371.exe 2444 ddb4776992155b9c5a26b47b53df2fed780c67b45eca5cbdf573e0dc3c20c371.exe 2444 ddb4776992155b9c5a26b47b53df2fed780c67b45eca5cbdf573e0dc3c20c371.exe 2444 ddb4776992155b9c5a26b47b53df2fed780c67b45eca5cbdf573e0dc3c20c371.exe 2444 ddb4776992155b9c5a26b47b53df2fed780c67b45eca5cbdf573e0dc3c20c371.exe 2444 ddb4776992155b9c5a26b47b53df2fed780c67b45eca5cbdf573e0dc3c20c371.exe 2444 ddb4776992155b9c5a26b47b53df2fed780c67b45eca5cbdf573e0dc3c20c371.exe 2444 ddb4776992155b9c5a26b47b53df2fed780c67b45eca5cbdf573e0dc3c20c371.exe 2444 ddb4776992155b9c5a26b47b53df2fed780c67b45eca5cbdf573e0dc3c20c371.exe 2444 ddb4776992155b9c5a26b47b53df2fed780c67b45eca5cbdf573e0dc3c20c371.exe 2444 ddb4776992155b9c5a26b47b53df2fed780c67b45eca5cbdf573e0dc3c20c371.exe 2444 ddb4776992155b9c5a26b47b53df2fed780c67b45eca5cbdf573e0dc3c20c371.exe 2444 ddb4776992155b9c5a26b47b53df2fed780c67b45eca5cbdf573e0dc3c20c371.exe 2444 ddb4776992155b9c5a26b47b53df2fed780c67b45eca5cbdf573e0dc3c20c371.exe 2444 ddb4776992155b9c5a26b47b53df2fed780c67b45eca5cbdf573e0dc3c20c371.exe 2444 ddb4776992155b9c5a26b47b53df2fed780c67b45eca5cbdf573e0dc3c20c371.exe 2444 ddb4776992155b9c5a26b47b53df2fed780c67b45eca5cbdf573e0dc3c20c371.exe 2444 ddb4776992155b9c5a26b47b53df2fed780c67b45eca5cbdf573e0dc3c20c371.exe 2444 ddb4776992155b9c5a26b47b53df2fed780c67b45eca5cbdf573e0dc3c20c371.exe -
Suspicious use of AdjustPrivilegeToken 63 IoCs
description pid Process Token: SeIncreaseQuotaPrivilege 3044 wmic.exe Token: SeSecurityPrivilege 3044 wmic.exe Token: SeTakeOwnershipPrivilege 3044 wmic.exe Token: SeLoadDriverPrivilege 3044 wmic.exe Token: SeSystemProfilePrivilege 3044 wmic.exe Token: SeSystemtimePrivilege 3044 wmic.exe Token: SeProfSingleProcessPrivilege 3044 wmic.exe Token: SeIncBasePriorityPrivilege 3044 wmic.exe Token: SeCreatePagefilePrivilege 3044 wmic.exe Token: SeBackupPrivilege 3044 wmic.exe Token: SeRestorePrivilege 3044 wmic.exe Token: SeShutdownPrivilege 3044 wmic.exe Token: SeDebugPrivilege 3044 wmic.exe Token: SeSystemEnvironmentPrivilege 3044 wmic.exe Token: SeRemoteShutdownPrivilege 3044 wmic.exe Token: SeUndockPrivilege 3044 wmic.exe Token: SeManageVolumePrivilege 3044 wmic.exe Token: 33 3044 wmic.exe Token: 34 3044 wmic.exe Token: 35 3044 wmic.exe Token: 36 3044 wmic.exe Token: SeIncreaseQuotaPrivilege 2984 wmic.exe Token: SeSecurityPrivilege 2984 wmic.exe Token: SeTakeOwnershipPrivilege 2984 wmic.exe Token: SeLoadDriverPrivilege 2984 wmic.exe Token: SeSystemProfilePrivilege 2984 wmic.exe Token: SeSystemtimePrivilege 2984 wmic.exe Token: SeProfSingleProcessPrivilege 2984 wmic.exe Token: SeIncBasePriorityPrivilege 2984 wmic.exe Token: SeCreatePagefilePrivilege 2984 wmic.exe Token: SeBackupPrivilege 2984 wmic.exe Token: SeRestorePrivilege 2984 wmic.exe Token: SeShutdownPrivilege 2984 wmic.exe Token: SeDebugPrivilege 2984 wmic.exe Token: SeSystemEnvironmentPrivilege 2984 wmic.exe Token: SeRemoteShutdownPrivilege 2984 wmic.exe Token: SeUndockPrivilege 2984 wmic.exe Token: SeManageVolumePrivilege 2984 wmic.exe Token: 33 2984 wmic.exe Token: 34 2984 wmic.exe Token: 35 2984 wmic.exe Token: 36 2984 wmic.exe Token: SeIncreaseQuotaPrivilege 2576 wmic.exe Token: SeSecurityPrivilege 2576 wmic.exe Token: SeTakeOwnershipPrivilege 2576 wmic.exe Token: SeLoadDriverPrivilege 2576 wmic.exe Token: SeSystemProfilePrivilege 2576 wmic.exe Token: SeSystemtimePrivilege 2576 wmic.exe Token: SeProfSingleProcessPrivilege 2576 wmic.exe Token: SeIncBasePriorityPrivilege 2576 wmic.exe Token: SeCreatePagefilePrivilege 2576 wmic.exe Token: SeBackupPrivilege 2576 wmic.exe Token: SeRestorePrivilege 2576 wmic.exe Token: SeShutdownPrivilege 2576 wmic.exe Token: SeDebugPrivilege 2576 wmic.exe Token: SeSystemEnvironmentPrivilege 2576 wmic.exe Token: SeRemoteShutdownPrivilege 2576 wmic.exe Token: SeUndockPrivilege 2576 wmic.exe Token: SeManageVolumePrivilege 2576 wmic.exe Token: 33 2576 wmic.exe Token: 34 2576 wmic.exe Token: 35 2576 wmic.exe Token: 36 2576 wmic.exe -
Suspicious use of WriteProcessMemory 9 IoCs
description pid Process procid_target PID 2444 wrote to memory of 3044 2444 ddb4776992155b9c5a26b47b53df2fed780c67b45eca5cbdf573e0dc3c20c371.exe 56 PID 2444 wrote to memory of 3044 2444 ddb4776992155b9c5a26b47b53df2fed780c67b45eca5cbdf573e0dc3c20c371.exe 56 PID 2444 wrote to memory of 3044 2444 ddb4776992155b9c5a26b47b53df2fed780c67b45eca5cbdf573e0dc3c20c371.exe 56 PID 2444 wrote to memory of 2984 2444 ddb4776992155b9c5a26b47b53df2fed780c67b45eca5cbdf573e0dc3c20c371.exe 59 PID 2444 wrote to memory of 2984 2444 ddb4776992155b9c5a26b47b53df2fed780c67b45eca5cbdf573e0dc3c20c371.exe 59 PID 2444 wrote to memory of 2984 2444 ddb4776992155b9c5a26b47b53df2fed780c67b45eca5cbdf573e0dc3c20c371.exe 59 PID 2444 wrote to memory of 2576 2444 ddb4776992155b9c5a26b47b53df2fed780c67b45eca5cbdf573e0dc3c20c371.exe 61 PID 2444 wrote to memory of 2576 2444 ddb4776992155b9c5a26b47b53df2fed780c67b45eca5cbdf573e0dc3c20c371.exe 61 PID 2444 wrote to memory of 2576 2444 ddb4776992155b9c5a26b47b53df2fed780c67b45eca5cbdf573e0dc3c20c371.exe 61 -
System policy modification 1 TTPs 3 IoCs
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" ddb4776992155b9c5a26b47b53df2fed780c67b45eca5cbdf573e0dc3c20c371.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0" ddb4776992155b9c5a26b47b53df2fed780c67b45eca5cbdf573e0dc3c20c371.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLinkedConnections = "1" ddb4776992155b9c5a26b47b53df2fed780c67b45eca5cbdf573e0dc3c20c371.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\ddb4776992155b9c5a26b47b53df2fed780c67b45eca5cbdf573e0dc3c20c371.exe"C:\Users\Admin\AppData\Local\Temp\ddb4776992155b9c5a26b47b53df2fed780c67b45eca5cbdf573e0dc3c20c371.exe"1⤵
- Checks whether UAC is enabled
- Drops desktop.ini file(s)
- Enumerates connected drives
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
- System policy modification
PID:2444 -
C:\Windows\SysWOW64\Wbem\wmic.exewmic.exe SHADOWCOPY /nointeractive2⤵
- Suspicious use of AdjustPrivilegeToken
PID:3044
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C:\Windows\SysWOW64\Wbem\wmic.exewmic.exe SHADOWCOPY /nointeractive2⤵
- Suspicious use of AdjustPrivilegeToken
PID:2984
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C:\Windows\SysWOW64\Wbem\wmic.exewmic.exe SHADOWCOPY /nointeractive2⤵
- Suspicious use of AdjustPrivilegeToken
PID:2576
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C:\Users\Admin\AppData\Roaming\svhost.exeC:\Users\Admin\AppData\Roaming\svhost.exe1⤵
- Executes dropped EXE
PID:3764