Analysis
-
max time kernel
150s -
max time network
157s -
platform
windows10-2004_x64 -
resource
win10v2004-20231215-en -
resource tags
arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system -
submitted
04-02-2024 14:41
Static task
static1
Behavioral task
behavioral1
Sample
unpacked.exe
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
unpacked.exe
Resource
win10v2004-20231215-en
General
-
Target
unpacked.exe
-
Size
72KB
-
MD5
108756f41d114eb93e136ba2feb838d0
-
SHA1
8c6b51923ee7da2f4642c7717db95fbb77d96164
-
SHA256
b38b4c1dcf6d6ecd1bbfc236b43c37c18044c2f42f11e5088384f4bd0751929c
-
SHA512
d13183e8ba4689475b0cb3f5cc7acbfba34a1ba661eb5988984647c2bd3e561cfa03f6267f60ae9fb2ca0783f26c105cdbcfc89def598c48968febef23c21aaa
-
SSDEEP
768:F9NJK3qZRhxXHIQBsLL16BKc+bBQZ/UMc2:rXzXol6cc+lQZMMc2
Malware Config
Extracted
C:\Users\Admin\AppData\Local\Temp\!satana!.txt
Signatures
-
Satana
Ransomware family which also encrypts the system's Master Boot Record (MBR).
-
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
unpacked.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-983843758-932321429-1636175382-1000\Control Panel\International\Geo\Nation unpacked.exe -
Deletes itself 1 IoCs
Processes:
psk.exepid process 5000 psk.exe -
Executes dropped EXE 1 IoCs
Processes:
psk.exepid process 5000 psk.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
unpacked.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-983843758-932321429-1636175382-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\dekqorel = "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:
psk.exedescription ioc process File opened for modification \??\PHYSICALDRIVE0 psk.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
-
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
psk.exedescription pid process Token: SeIncBasePriorityPrivilege 5000 psk.exe -
Suspicious use of WriteProcessMemory 3 IoCs
Processes:
unpacked.exedescription pid process target process PID 3764 wrote to memory of 5000 3764 unpacked.exe psk.exe PID 3764 wrote to memory of 5000 3764 unpacked.exe psk.exe PID 3764 wrote to memory of 5000 3764 unpacked.exe psk.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\unpacked.exe"C:\Users\Admin\AppData\Local\Temp\unpacked.exe"1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:3764 -
C:\Users\Admin\AppData\Local\Temp\psk.exe"C:\Users\Admin\AppData\Local\Temp\psk.exe" {dd8b890e-9b7f-11ee-9bd2-806e6f6e6963} "C:\Users\Admin\AppData\Local\Temp\unpacked.exe"2⤵
- Deletes itself
- Executes dropped EXE
- Writes to the Master Boot Record (MBR)
- Suspicious use of AdjustPrivilegeToken
PID:5000
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
1KB
MD53aaf21c2a26d1586b12a297b7c259755
SHA1c2a3a78f2bf1b7c4cb734bad737e8a1dd054c804
SHA256ee502be19cfea657ca2a93b43a037f22749e20f19a85d41ca73108e78c2b0f5e
SHA5121ba81ba481202cd79e997329231209f553898fbbb9cd647a5e021d5f38ff43ac7fcb42988702c6538d5efb65f8f11c2732b95e9004edf9ed7c629ba7065f4b94
-
Filesize
72KB
MD5108756f41d114eb93e136ba2feb838d0
SHA18c6b51923ee7da2f4642c7717db95fbb77d96164
SHA256b38b4c1dcf6d6ecd1bbfc236b43c37c18044c2f42f11e5088384f4bd0751929c
SHA512d13183e8ba4689475b0cb3f5cc7acbfba34a1ba661eb5988984647c2bd3e561cfa03f6267f60ae9fb2ca0783f26c105cdbcfc89def598c48968febef23c21aaa