Analysis
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max time kernel
95s -
max time network
95s -
platform
windows11-21h2_x64 -
resource
win11-20240709-en -
resource tags
arch:x64arch:x86image:win11-20240709-enlocale:en-usos:windows11-21h2-x64system -
submitted
30-07-2024 10:21
Static task
static1
Behavioral task
behavioral1
Sample
683a09da219918258c58a7f61f7dc4161a3a7a377cf82a31b840baabfb9a4a96.exe
Resource
win11-20240729-en
Behavioral task
behavioral2
Sample
unpacked.exe
Resource
win11-20240709-en
General
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Target
unpacked.exe
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Size
72KB
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MD5
108756f41d114eb93e136ba2feb838d0
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SHA1
8c6b51923ee7da2f4642c7717db95fbb77d96164
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SHA256
b38b4c1dcf6d6ecd1bbfc236b43c37c18044c2f42f11e5088384f4bd0751929c
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SHA512
d13183e8ba4689475b0cb3f5cc7acbfba34a1ba661eb5988984647c2bd3e561cfa03f6267f60ae9fb2ca0783f26c105cdbcfc89def598c48968febef23c21aaa
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SSDEEP
768:F9NJK3qZRhxXHIQBsLL16BKc+bBQZ/UMc2:rXzXol6cc+lQZMMc2
Malware Config
Extracted
C:\Users\Admin\AppData\Local\Temp\!satana!.txt
Signatures
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Satana
Ransomware family which also encrypts the system's Master Boot Record (MBR).
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Deletes itself 1 IoCs
Processes:
lmwaz.exepid process 4124 lmwaz.exe -
Executes dropped EXE 1 IoCs
Processes:
lmwaz.exepid process 4124 lmwaz.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
unpacked.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-514081398-208714212-3319599467-1000\Software\Microsoft\Windows\CurrentVersion\Run\shffkj = "C:\\Users\\Admin\\AppData\\Local\\Temp\\!satana!.txt" unpacked.exe -
Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs
Bootkits write to the MBR to gain persistence at a level below the operating system.
Processes:
lmwaz.exedescription ioc process File opened for modification \??\PHYSICALDRIVE0 lmwaz.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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System Location Discovery: System Language Discovery 1 TTPs 2 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
Processes:
unpacked.exelmwaz.exedescription ioc process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language unpacked.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language lmwaz.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
lmwaz.exedescription pid process Token: SeIncBasePriorityPrivilege 4124 lmwaz.exe -
Suspicious use of WriteProcessMemory 3 IoCs
Processes:
unpacked.exedescription pid process target process PID 4284 wrote to memory of 4124 4284 unpacked.exe lmwaz.exe PID 4284 wrote to memory of 4124 4284 unpacked.exe lmwaz.exe PID 4284 wrote to memory of 4124 4284 unpacked.exe lmwaz.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\unpacked.exe"C:\Users\Admin\AppData\Local\Temp\unpacked.exe"1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4284 -
C:\Users\Admin\AppData\Local\Temp\lmwaz.exe"C:\Users\Admin\AppData\Local\Temp\lmwaz.exe" {749bf537-3e56-11ef-9b5c-806e6f6e6963} "C:\Users\Admin\AppData\Local\Temp\unpacked.exe"2⤵
- Deletes itself
- Executes dropped EXE
- Writes to the Master Boot Record (MBR)
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:4124
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Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Pre-OS Boot
1Bootkit
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
1KB
MD502fe7f9280fe644235cb74f11c0d660c
SHA19f01ac1d694395cd6ff6acacb5baee931b22928f
SHA256ede3661c37fd834d83a9441a60a2fee8ad8bf8b7bb3a8bf0eb5f181cf0368858
SHA5123c0c189031e6625c93ce10426ddb6d24a350ab5845311ba86786946c2787f45e342eb5eee95871b764df59ed919b658c79715a65d8009802bda2214af9871225
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Filesize
72KB
MD5108756f41d114eb93e136ba2feb838d0
SHA18c6b51923ee7da2f4642c7717db95fbb77d96164
SHA256b38b4c1dcf6d6ecd1bbfc236b43c37c18044c2f42f11e5088384f4bd0751929c
SHA512d13183e8ba4689475b0cb3f5cc7acbfba34a1ba661eb5988984647c2bd3e561cfa03f6267f60ae9fb2ca0783f26c105cdbcfc89def598c48968febef23c21aaa