Analysis
-
max time kernel
166s -
max time network
135s -
platform
windows10-2004_x64 -
resource
win10v2004-en-20220112 -
submitted
01-02-2022 15:21
Static task
static1
Behavioral task
behavioral1
Sample
fd24ff7e838fea836079c4554254768abdce32c4f46148c609a5a676c9e71103.exe
Resource
win7-en-20211208
Behavioral task
behavioral2
Sample
fd24ff7e838fea836079c4554254768abdce32c4f46148c609a5a676c9e71103.exe
Resource
win10v2004-en-20220112
General
-
Target
fd24ff7e838fea836079c4554254768abdce32c4f46148c609a5a676c9e71103.exe
-
Size
678KB
-
MD5
4984d9af56c39a161b627e019ed2604d
-
SHA1
eef59fd5b71487448bfd44270d909b1441cd537b
-
SHA256
fd24ff7e838fea836079c4554254768abdce32c4f46148c609a5a676c9e71103
-
SHA512
647917640c35888911c99a57a6c7db9164cc3739cbeebc0ad698f597ef04a34ad35b8f0e516ad3b701358e5f6bd6bf537e396b3ebacbaa3e1b5ee32b9d1e2222
Malware Config
Extracted
C:\Recovery_Instructions.html
Signatures
-
MedusaLocker
Ransomware with several variants first seen in September 2019.
-
MedusaLocker Payload 2 IoCs
Processes:
resource yara_rule behavioral2/files/0x0007000000021418-187.dat family_medusalocker behavioral2/files/0x0007000000021418-188.dat family_medusalocker -
Executes dropped EXE 1 IoCs
Processes:
svhost.exepid Process 3008 svhost.exe -
Processes:
fd24ff7e838fea836079c4554254768abdce32c4f46148c609a5a676c9e71103.exedescription ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" fd24ff7e838fea836079c4554254768abdce32c4f46148c609a5a676c9e71103.exe -
Drops desktop.ini file(s) 1 IoCs
Processes:
fd24ff7e838fea836079c4554254768abdce32c4f46148c609a5a676c9e71103.exedescription ioc Process File opened for modification \??\Z:\$RECYCLE.BIN\S-1-5-21-790714498-1549421491-1643397139-1000\desktop.ini fd24ff7e838fea836079c4554254768abdce32c4f46148c609a5a676c9e71103.exe -
Enumerates connected drives 3 TTPs 24 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
Processes:
fd24ff7e838fea836079c4554254768abdce32c4f46148c609a5a676c9e71103.exedescription ioc Process File opened (read-only) \??\K: fd24ff7e838fea836079c4554254768abdce32c4f46148c609a5a676c9e71103.exe File opened (read-only) \??\L: fd24ff7e838fea836079c4554254768abdce32c4f46148c609a5a676c9e71103.exe File opened (read-only) \??\V: fd24ff7e838fea836079c4554254768abdce32c4f46148c609a5a676c9e71103.exe File opened (read-only) \??\X: fd24ff7e838fea836079c4554254768abdce32c4f46148c609a5a676c9e71103.exe File opened (read-only) \??\Y: fd24ff7e838fea836079c4554254768abdce32c4f46148c609a5a676c9e71103.exe File opened (read-only) \??\Z: fd24ff7e838fea836079c4554254768abdce32c4f46148c609a5a676c9e71103.exe File opened (read-only) \??\B: fd24ff7e838fea836079c4554254768abdce32c4f46148c609a5a676c9e71103.exe File opened (read-only) \??\J: fd24ff7e838fea836079c4554254768abdce32c4f46148c609a5a676c9e71103.exe File opened (read-only) \??\N: fd24ff7e838fea836079c4554254768abdce32c4f46148c609a5a676c9e71103.exe File opened (read-only) \??\G: fd24ff7e838fea836079c4554254768abdce32c4f46148c609a5a676c9e71103.exe File opened (read-only) \??\I: fd24ff7e838fea836079c4554254768abdce32c4f46148c609a5a676c9e71103.exe File opened (read-only) \??\O: fd24ff7e838fea836079c4554254768abdce32c4f46148c609a5a676c9e71103.exe File opened (read-only) \??\P: fd24ff7e838fea836079c4554254768abdce32c4f46148c609a5a676c9e71103.exe File opened (read-only) \??\R: fd24ff7e838fea836079c4554254768abdce32c4f46148c609a5a676c9e71103.exe File opened (read-only) \??\S: fd24ff7e838fea836079c4554254768abdce32c4f46148c609a5a676c9e71103.exe File opened (read-only) \??\T: fd24ff7e838fea836079c4554254768abdce32c4f46148c609a5a676c9e71103.exe File opened (read-only) \??\A: fd24ff7e838fea836079c4554254768abdce32c4f46148c609a5a676c9e71103.exe File opened (read-only) \??\M: fd24ff7e838fea836079c4554254768abdce32c4f46148c609a5a676c9e71103.exe File opened (read-only) \??\H: fd24ff7e838fea836079c4554254768abdce32c4f46148c609a5a676c9e71103.exe File opened (read-only) \??\Q: fd24ff7e838fea836079c4554254768abdce32c4f46148c609a5a676c9e71103.exe File opened (read-only) \??\U: fd24ff7e838fea836079c4554254768abdce32c4f46148c609a5a676c9e71103.exe File opened (read-only) \??\W: fd24ff7e838fea836079c4554254768abdce32c4f46148c609a5a676c9e71103.exe File opened (read-only) \??\E: fd24ff7e838fea836079c4554254768abdce32c4f46148c609a5a676c9e71103.exe File opened (read-only) \??\F: fd24ff7e838fea836079c4554254768abdce32c4f46148c609a5a676c9e71103.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
-
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
fd24ff7e838fea836079c4554254768abdce32c4f46148c609a5a676c9e71103.exepid Process 2564 fd24ff7e838fea836079c4554254768abdce32c4f46148c609a5a676c9e71103.exe 2564 fd24ff7e838fea836079c4554254768abdce32c4f46148c609a5a676c9e71103.exe 2564 fd24ff7e838fea836079c4554254768abdce32c4f46148c609a5a676c9e71103.exe 2564 fd24ff7e838fea836079c4554254768abdce32c4f46148c609a5a676c9e71103.exe 2564 fd24ff7e838fea836079c4554254768abdce32c4f46148c609a5a676c9e71103.exe 2564 fd24ff7e838fea836079c4554254768abdce32c4f46148c609a5a676c9e71103.exe 2564 fd24ff7e838fea836079c4554254768abdce32c4f46148c609a5a676c9e71103.exe 2564 fd24ff7e838fea836079c4554254768abdce32c4f46148c609a5a676c9e71103.exe 2564 fd24ff7e838fea836079c4554254768abdce32c4f46148c609a5a676c9e71103.exe 2564 fd24ff7e838fea836079c4554254768abdce32c4f46148c609a5a676c9e71103.exe 2564 fd24ff7e838fea836079c4554254768abdce32c4f46148c609a5a676c9e71103.exe 2564 fd24ff7e838fea836079c4554254768abdce32c4f46148c609a5a676c9e71103.exe 2564 fd24ff7e838fea836079c4554254768abdce32c4f46148c609a5a676c9e71103.exe 2564 fd24ff7e838fea836079c4554254768abdce32c4f46148c609a5a676c9e71103.exe 2564 fd24ff7e838fea836079c4554254768abdce32c4f46148c609a5a676c9e71103.exe 2564 fd24ff7e838fea836079c4554254768abdce32c4f46148c609a5a676c9e71103.exe 2564 fd24ff7e838fea836079c4554254768abdce32c4f46148c609a5a676c9e71103.exe 2564 fd24ff7e838fea836079c4554254768abdce32c4f46148c609a5a676c9e71103.exe 2564 fd24ff7e838fea836079c4554254768abdce32c4f46148c609a5a676c9e71103.exe 2564 fd24ff7e838fea836079c4554254768abdce32c4f46148c609a5a676c9e71103.exe 2564 fd24ff7e838fea836079c4554254768abdce32c4f46148c609a5a676c9e71103.exe 2564 fd24ff7e838fea836079c4554254768abdce32c4f46148c609a5a676c9e71103.exe 2564 fd24ff7e838fea836079c4554254768abdce32c4f46148c609a5a676c9e71103.exe 2564 fd24ff7e838fea836079c4554254768abdce32c4f46148c609a5a676c9e71103.exe 2564 fd24ff7e838fea836079c4554254768abdce32c4f46148c609a5a676c9e71103.exe 2564 fd24ff7e838fea836079c4554254768abdce32c4f46148c609a5a676c9e71103.exe 2564 fd24ff7e838fea836079c4554254768abdce32c4f46148c609a5a676c9e71103.exe 2564 fd24ff7e838fea836079c4554254768abdce32c4f46148c609a5a676c9e71103.exe 2564 fd24ff7e838fea836079c4554254768abdce32c4f46148c609a5a676c9e71103.exe 2564 fd24ff7e838fea836079c4554254768abdce32c4f46148c609a5a676c9e71103.exe 2564 fd24ff7e838fea836079c4554254768abdce32c4f46148c609a5a676c9e71103.exe 2564 fd24ff7e838fea836079c4554254768abdce32c4f46148c609a5a676c9e71103.exe 2564 fd24ff7e838fea836079c4554254768abdce32c4f46148c609a5a676c9e71103.exe 2564 fd24ff7e838fea836079c4554254768abdce32c4f46148c609a5a676c9e71103.exe 2564 fd24ff7e838fea836079c4554254768abdce32c4f46148c609a5a676c9e71103.exe 2564 fd24ff7e838fea836079c4554254768abdce32c4f46148c609a5a676c9e71103.exe 2564 fd24ff7e838fea836079c4554254768abdce32c4f46148c609a5a676c9e71103.exe 2564 fd24ff7e838fea836079c4554254768abdce32c4f46148c609a5a676c9e71103.exe 2564 fd24ff7e838fea836079c4554254768abdce32c4f46148c609a5a676c9e71103.exe 2564 fd24ff7e838fea836079c4554254768abdce32c4f46148c609a5a676c9e71103.exe 2564 fd24ff7e838fea836079c4554254768abdce32c4f46148c609a5a676c9e71103.exe 2564 fd24ff7e838fea836079c4554254768abdce32c4f46148c609a5a676c9e71103.exe 2564 fd24ff7e838fea836079c4554254768abdce32c4f46148c609a5a676c9e71103.exe 2564 fd24ff7e838fea836079c4554254768abdce32c4f46148c609a5a676c9e71103.exe 2564 fd24ff7e838fea836079c4554254768abdce32c4f46148c609a5a676c9e71103.exe 2564 fd24ff7e838fea836079c4554254768abdce32c4f46148c609a5a676c9e71103.exe 2564 fd24ff7e838fea836079c4554254768abdce32c4f46148c609a5a676c9e71103.exe 2564 fd24ff7e838fea836079c4554254768abdce32c4f46148c609a5a676c9e71103.exe 2564 fd24ff7e838fea836079c4554254768abdce32c4f46148c609a5a676c9e71103.exe 2564 fd24ff7e838fea836079c4554254768abdce32c4f46148c609a5a676c9e71103.exe 2564 fd24ff7e838fea836079c4554254768abdce32c4f46148c609a5a676c9e71103.exe 2564 fd24ff7e838fea836079c4554254768abdce32c4f46148c609a5a676c9e71103.exe 2564 fd24ff7e838fea836079c4554254768abdce32c4f46148c609a5a676c9e71103.exe 2564 fd24ff7e838fea836079c4554254768abdce32c4f46148c609a5a676c9e71103.exe 2564 fd24ff7e838fea836079c4554254768abdce32c4f46148c609a5a676c9e71103.exe 2564 fd24ff7e838fea836079c4554254768abdce32c4f46148c609a5a676c9e71103.exe 2564 fd24ff7e838fea836079c4554254768abdce32c4f46148c609a5a676c9e71103.exe 2564 fd24ff7e838fea836079c4554254768abdce32c4f46148c609a5a676c9e71103.exe 2564 fd24ff7e838fea836079c4554254768abdce32c4f46148c609a5a676c9e71103.exe 2564 fd24ff7e838fea836079c4554254768abdce32c4f46148c609a5a676c9e71103.exe 2564 fd24ff7e838fea836079c4554254768abdce32c4f46148c609a5a676c9e71103.exe 2564 fd24ff7e838fea836079c4554254768abdce32c4f46148c609a5a676c9e71103.exe 2564 fd24ff7e838fea836079c4554254768abdce32c4f46148c609a5a676c9e71103.exe 2564 fd24ff7e838fea836079c4554254768abdce32c4f46148c609a5a676c9e71103.exe -
Suspicious use of AdjustPrivilegeToken 63 IoCs
Processes:
wmic.exewmic.exewmic.exedescription pid Process Token: SeIncreaseQuotaPrivilege 816 wmic.exe Token: SeSecurityPrivilege 816 wmic.exe Token: SeTakeOwnershipPrivilege 816 wmic.exe Token: SeLoadDriverPrivilege 816 wmic.exe Token: SeSystemProfilePrivilege 816 wmic.exe Token: SeSystemtimePrivilege 816 wmic.exe Token: SeProfSingleProcessPrivilege 816 wmic.exe Token: SeIncBasePriorityPrivilege 816 wmic.exe Token: SeCreatePagefilePrivilege 816 wmic.exe Token: SeBackupPrivilege 816 wmic.exe Token: SeRestorePrivilege 816 wmic.exe Token: SeShutdownPrivilege 816 wmic.exe Token: SeDebugPrivilege 816 wmic.exe Token: SeSystemEnvironmentPrivilege 816 wmic.exe Token: SeRemoteShutdownPrivilege 816 wmic.exe Token: SeUndockPrivilege 816 wmic.exe Token: SeManageVolumePrivilege 816 wmic.exe Token: 33 816 wmic.exe Token: 34 816 wmic.exe Token: 35 816 wmic.exe Token: 36 816 wmic.exe Token: SeIncreaseQuotaPrivilege 2372 wmic.exe Token: SeSecurityPrivilege 2372 wmic.exe Token: SeTakeOwnershipPrivilege 2372 wmic.exe Token: SeLoadDriverPrivilege 2372 wmic.exe Token: SeSystemProfilePrivilege 2372 wmic.exe Token: SeSystemtimePrivilege 2372 wmic.exe Token: SeProfSingleProcessPrivilege 2372 wmic.exe Token: SeIncBasePriorityPrivilege 2372 wmic.exe Token: SeCreatePagefilePrivilege 2372 wmic.exe Token: SeBackupPrivilege 2372 wmic.exe Token: SeRestorePrivilege 2372 wmic.exe Token: SeShutdownPrivilege 2372 wmic.exe Token: SeDebugPrivilege 2372 wmic.exe Token: SeSystemEnvironmentPrivilege 2372 wmic.exe Token: SeRemoteShutdownPrivilege 2372 wmic.exe Token: SeUndockPrivilege 2372 wmic.exe Token: SeManageVolumePrivilege 2372 wmic.exe Token: 33 2372 wmic.exe Token: 34 2372 wmic.exe Token: 35 2372 wmic.exe Token: 36 2372 wmic.exe Token: SeIncreaseQuotaPrivilege 4032 wmic.exe Token: SeSecurityPrivilege 4032 wmic.exe Token: SeTakeOwnershipPrivilege 4032 wmic.exe Token: SeLoadDriverPrivilege 4032 wmic.exe Token: SeSystemProfilePrivilege 4032 wmic.exe Token: SeSystemtimePrivilege 4032 wmic.exe Token: SeProfSingleProcessPrivilege 4032 wmic.exe Token: SeIncBasePriorityPrivilege 4032 wmic.exe Token: SeCreatePagefilePrivilege 4032 wmic.exe Token: SeBackupPrivilege 4032 wmic.exe Token: SeRestorePrivilege 4032 wmic.exe Token: SeShutdownPrivilege 4032 wmic.exe Token: SeDebugPrivilege 4032 wmic.exe Token: SeSystemEnvironmentPrivilege 4032 wmic.exe Token: SeRemoteShutdownPrivilege 4032 wmic.exe Token: SeUndockPrivilege 4032 wmic.exe Token: SeManageVolumePrivilege 4032 wmic.exe Token: 33 4032 wmic.exe Token: 34 4032 wmic.exe Token: 35 4032 wmic.exe Token: 36 4032 wmic.exe -
Suspicious use of WriteProcessMemory 9 IoCs
Processes:
fd24ff7e838fea836079c4554254768abdce32c4f46148c609a5a676c9e71103.exedescription pid Process procid_target PID 2564 wrote to memory of 816 2564 fd24ff7e838fea836079c4554254768abdce32c4f46148c609a5a676c9e71103.exe 56 PID 2564 wrote to memory of 816 2564 fd24ff7e838fea836079c4554254768abdce32c4f46148c609a5a676c9e71103.exe 56 PID 2564 wrote to memory of 816 2564 fd24ff7e838fea836079c4554254768abdce32c4f46148c609a5a676c9e71103.exe 56 PID 2564 wrote to memory of 2372 2564 fd24ff7e838fea836079c4554254768abdce32c4f46148c609a5a676c9e71103.exe 59 PID 2564 wrote to memory of 2372 2564 fd24ff7e838fea836079c4554254768abdce32c4f46148c609a5a676c9e71103.exe 59 PID 2564 wrote to memory of 2372 2564 fd24ff7e838fea836079c4554254768abdce32c4f46148c609a5a676c9e71103.exe 59 PID 2564 wrote to memory of 4032 2564 fd24ff7e838fea836079c4554254768abdce32c4f46148c609a5a676c9e71103.exe 61 PID 2564 wrote to memory of 4032 2564 fd24ff7e838fea836079c4554254768abdce32c4f46148c609a5a676c9e71103.exe 61 PID 2564 wrote to memory of 4032 2564 fd24ff7e838fea836079c4554254768abdce32c4f46148c609a5a676c9e71103.exe 61 -
System policy modification 1 TTPs 3 IoCs
Processes:
fd24ff7e838fea836079c4554254768abdce32c4f46148c609a5a676c9e71103.exedescription ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" fd24ff7e838fea836079c4554254768abdce32c4f46148c609a5a676c9e71103.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0" fd24ff7e838fea836079c4554254768abdce32c4f46148c609a5a676c9e71103.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLinkedConnections = "1" fd24ff7e838fea836079c4554254768abdce32c4f46148c609a5a676c9e71103.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\fd24ff7e838fea836079c4554254768abdce32c4f46148c609a5a676c9e71103.exe"C:\Users\Admin\AppData\Local\Temp\fd24ff7e838fea836079c4554254768abdce32c4f46148c609a5a676c9e71103.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:2564 -
C:\Windows\SysWOW64\Wbem\wmic.exewmic.exe SHADOWCOPY /nointeractive2⤵
- Suspicious use of AdjustPrivilegeToken
PID:816
-
-
C:\Windows\SysWOW64\Wbem\wmic.exewmic.exe SHADOWCOPY /nointeractive2⤵
- Suspicious use of AdjustPrivilegeToken
PID:2372
-
-
C:\Windows\SysWOW64\Wbem\wmic.exewmic.exe SHADOWCOPY /nointeractive2⤵
- Suspicious use of AdjustPrivilegeToken
PID:4032
-
-
C:\Users\Admin\AppData\Roaming\svhost.exeC:\Users\Admin\AppData\Roaming\svhost.exe1⤵
- Executes dropped EXE
PID:3008
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
-
MD5
4984d9af56c39a161b627e019ed2604d
SHA1eef59fd5b71487448bfd44270d909b1441cd537b
SHA256fd24ff7e838fea836079c4554254768abdce32c4f46148c609a5a676c9e71103
SHA512647917640c35888911c99a57a6c7db9164cc3739cbeebc0ad698f597ef04a34ad35b8f0e516ad3b701358e5f6bd6bf537e396b3ebacbaa3e1b5ee32b9d1e2222
-
MD5
4984d9af56c39a161b627e019ed2604d
SHA1eef59fd5b71487448bfd44270d909b1441cd537b
SHA256fd24ff7e838fea836079c4554254768abdce32c4f46148c609a5a676c9e71103
SHA512647917640c35888911c99a57a6c7db9164cc3739cbeebc0ad698f597ef04a34ad35b8f0e516ad3b701358e5f6bd6bf537e396b3ebacbaa3e1b5ee32b9d1e2222