Analysis
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max time kernel
149s -
max time network
105s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
30-08-2024 15:30
Behavioral task
behavioral1
Sample
2024-08-30_baaaf1539a72ab606ebdb8f3fc1b9e79_satana.exe
Resource
win7-20240704-en
Behavioral task
behavioral2
Sample
2024-08-30_baaaf1539a72ab606ebdb8f3fc1b9e79_satana.exe
Resource
win10v2004-20240802-en
General
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Target
2024-08-30_baaaf1539a72ab606ebdb8f3fc1b9e79_satana.exe
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Size
144KB
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MD5
baaaf1539a72ab606ebdb8f3fc1b9e79
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SHA1
edcc94fcc1bb8c70e5ee2d558e22ba3af9350b88
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SHA256
cd2b9754497e4b364242705cc435703bc110e1631ff3ec3064f8d05e55e6b268
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SHA512
f260103ba23e4a6bd9b6b5ddcf84bf6a1f51d41dfb6624cc736e713443da1b860e4a21983c50d71e86004f936aa82b78df916a9a57434119d03ce8eccb5366ca
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SSDEEP
768:oebF010RFnAwJM7MiqwecUaX5h4IuCdYa+XLXTGY1idL2WYiwtwq6gTl7:oep010vnAOIUaJh4IXdWXLXTWLfuR
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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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-4182098368-2521458979-3782681353-1000\Control Panel\International\Geo\Nation 2024-08-30_baaaf1539a72ab606ebdb8f3fc1b9e79_satana.exe -
Deletes itself 1 IoCs
pid Process 876 ujnrzr.exe -
Executes dropped EXE 2 IoCs
pid Process 432 ujnrzr.exe 876 ujnrzr.exe -
resource yara_rule behavioral2/memory/2972-0-0x0000000000400000-0x0000000000424000-memory.dmp upx behavioral2/memory/2972-6-0x0000000000400000-0x0000000000424000-memory.dmp upx behavioral2/files/0x001100000002349f-16.dat upx behavioral2/memory/432-30-0x0000000000400000-0x0000000000424000-memory.dmp upx -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-4182098368-2521458979-3782681353-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\zkbva = "C:\\Users\\Admin\\AppData\\Local\\Temp\\!satana!.txt" 2024-08-30_baaaf1539a72ab606ebdb8f3fc1b9e79_satana.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.
description ioc Process File opened for modification \??\PHYSICALDRIVE0 ujnrzr.exe -
Suspicious use of SetThreadContext 2 IoCs
description pid Process procid_target PID 2972 set thread context of 3952 2972 2024-08-30_baaaf1539a72ab606ebdb8f3fc1b9e79_satana.exe 92 PID 432 set thread context of 876 432 ujnrzr.exe 98 -
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 4 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 2024-08-30_baaaf1539a72ab606ebdb8f3fc1b9e79_satana.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 2024-08-30_baaaf1539a72ab606ebdb8f3fc1b9e79_satana.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language ujnrzr.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language ujnrzr.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeIncBasePriorityPrivilege 876 ujnrzr.exe -
Suspicious use of WriteProcessMemory 21 IoCs
description pid Process procid_target PID 2972 wrote to memory of 3952 2972 2024-08-30_baaaf1539a72ab606ebdb8f3fc1b9e79_satana.exe 92 PID 2972 wrote to memory of 3952 2972 2024-08-30_baaaf1539a72ab606ebdb8f3fc1b9e79_satana.exe 92 PID 2972 wrote to memory of 3952 2972 2024-08-30_baaaf1539a72ab606ebdb8f3fc1b9e79_satana.exe 92 PID 2972 wrote to memory of 3952 2972 2024-08-30_baaaf1539a72ab606ebdb8f3fc1b9e79_satana.exe 92 PID 2972 wrote to memory of 3952 2972 2024-08-30_baaaf1539a72ab606ebdb8f3fc1b9e79_satana.exe 92 PID 2972 wrote to memory of 3952 2972 2024-08-30_baaaf1539a72ab606ebdb8f3fc1b9e79_satana.exe 92 PID 2972 wrote to memory of 3952 2972 2024-08-30_baaaf1539a72ab606ebdb8f3fc1b9e79_satana.exe 92 PID 2972 wrote to memory of 3952 2972 2024-08-30_baaaf1539a72ab606ebdb8f3fc1b9e79_satana.exe 92 PID 2972 wrote to memory of 3952 2972 2024-08-30_baaaf1539a72ab606ebdb8f3fc1b9e79_satana.exe 92 PID 3952 wrote to memory of 432 3952 2024-08-30_baaaf1539a72ab606ebdb8f3fc1b9e79_satana.exe 96 PID 3952 wrote to memory of 432 3952 2024-08-30_baaaf1539a72ab606ebdb8f3fc1b9e79_satana.exe 96 PID 3952 wrote to memory of 432 3952 2024-08-30_baaaf1539a72ab606ebdb8f3fc1b9e79_satana.exe 96 PID 432 wrote to memory of 876 432 ujnrzr.exe 98 PID 432 wrote to memory of 876 432 ujnrzr.exe 98 PID 432 wrote to memory of 876 432 ujnrzr.exe 98 PID 432 wrote to memory of 876 432 ujnrzr.exe 98 PID 432 wrote to memory of 876 432 ujnrzr.exe 98 PID 432 wrote to memory of 876 432 ujnrzr.exe 98 PID 432 wrote to memory of 876 432 ujnrzr.exe 98 PID 432 wrote to memory of 876 432 ujnrzr.exe 98 PID 432 wrote to memory of 876 432 ujnrzr.exe 98
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-08-30_baaaf1539a72ab606ebdb8f3fc1b9e79_satana.exe"C:\Users\Admin\AppData\Local\Temp\2024-08-30_baaaf1539a72ab606ebdb8f3fc1b9e79_satana.exe"1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2972 -
C:\Users\Admin\AppData\Local\Temp\2024-08-30_baaaf1539a72ab606ebdb8f3fc1b9e79_satana.exe"C:\Users\Admin\AppData\Local\Temp\2024-08-30_baaaf1539a72ab606ebdb8f3fc1b9e79_satana.exe"2⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3952 -
C:\Users\Admin\AppData\Local\Temp\ujnrzr.exe"C:\Users\Admin\AppData\Local\Temp\ujnrzr.exe" {92831158-510d-11ef-99ef-806e6f6e6963} "C:\Users\Admin\AppData\Local\Temp\2024-0~1.EXE"3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:432 -
C:\Users\Admin\AppData\Local\Temp\ujnrzr.exe"C:\Users\Admin\AppData\Local\Temp\ujnrzr.exe" {92831158-510d-11ef-99ef-806e6f6e6963} "C:\Users\Admin\AppData\Local\Temp\2024-0~1.EXE"4⤵
- Deletes itself
- Executes dropped EXE
- Writes to the Master Boot Record (MBR)
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:876
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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
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Downloads
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Filesize
1KB
MD5a2826d839ebad7d36ada826b5cfb4225
SHA14d0325044f02d70cf86626e4d88839ead3713ba9
SHA256e3255444118e4786ed2061036304cb87de4c9da5996ca850ad5b4aa9f99d01cb
SHA51226fee5d1ddd5b84305ed4c6201a454c6d7c91f33d8333b5e8e58e1b9e88f02e74b65fa74368cf087a57bd7682d660bfefdb91737fb6ea9a5b78b004f123418d4
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Filesize
144KB
MD5baaaf1539a72ab606ebdb8f3fc1b9e79
SHA1edcc94fcc1bb8c70e5ee2d558e22ba3af9350b88
SHA256cd2b9754497e4b364242705cc435703bc110e1631ff3ec3064f8d05e55e6b268
SHA512f260103ba23e4a6bd9b6b5ddcf84bf6a1f51d41dfb6624cc736e713443da1b860e4a21983c50d71e86004f936aa82b78df916a9a57434119d03ce8eccb5366ca