Analysis
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max time kernel
138s -
max time network
159s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system -
submitted
10-04-2024 14:00
Static task
static1
Behavioral task
behavioral1
Sample
c222122fe3e1206ba2363c17fb37ae2f8e271840e17b3bb9ba5359f2793f9574.exe
Resource
win7-20240220-en
Behavioral task
behavioral2
Sample
c222122fe3e1206ba2363c17fb37ae2f8e271840e17b3bb9ba5359f2793f9574.exe
Resource
win10v2004-20240226-en
General
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Target
c222122fe3e1206ba2363c17fb37ae2f8e271840e17b3bb9ba5359f2793f9574.exe
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Size
234KB
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MD5
ec0883bd8594cc34092a5e9a70a1b249
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SHA1
4ba9c7d411006de1bf589eac2fa179d1d7120468
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SHA256
c222122fe3e1206ba2363c17fb37ae2f8e271840e17b3bb9ba5359f2793f9574
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SHA512
2cd9f53f426d1d083df8b81001c67d211546c79d6c4b66947d37cd603b5d65e38a137822b0b1e8b1149f55f1df1433f61aa64ca5ed4f6502353f0b5b879ce379
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SSDEEP
3072:ikQyq9LPYIV2c4cWS3/gzrJibspWivFYMmgESdWylzs0i2EbrXlY5ql5Gw:ikI9LP5VGaIzkAvFYZgdWis0iVfpl
Malware Config
Signatures
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SaintBot payload 10 IoCs
Processes:
resource yara_rule behavioral2/memory/3768-2-0x0000000002760000-0x0000000002769000-memory.dmp family_saintbot behavioral2/memory/3768-3-0x0000000000400000-0x0000000000A14000-memory.dmp family_saintbot behavioral2/memory/3768-4-0x0000000000400000-0x0000000000A14000-memory.dmp family_saintbot behavioral2/memory/3460-24-0x0000000000AB0000-0x0000000000AB9000-memory.dmp family_saintbot behavioral2/memory/3460-25-0x0000000000400000-0x0000000000A14000-memory.dmp family_saintbot behavioral2/memory/3768-26-0x0000000000400000-0x0000000000A14000-memory.dmp family_saintbot behavioral2/memory/3460-29-0x0000000000400000-0x0000000000A14000-memory.dmp family_saintbot behavioral2/memory/4516-30-0x00000000001F0000-0x00000000001FB000-memory.dmp family_saintbot behavioral2/memory/4516-33-0x00000000001F0000-0x00000000001FB000-memory.dmp family_saintbot behavioral2/memory/4516-34-0x00000000001F0000-0x00000000001FB000-memory.dmp family_saintbot -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
c222122fe3e1206ba2363c17fb37ae2f8e271840e17b3bb9ba5359f2793f9574.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation c222122fe3e1206ba2363c17fb37ae2f8e271840e17b3bb9ba5359f2793f9574.exe -
Drops startup file 2 IoCs
Processes:
c222122fe3e1206ba2363c17fb37ae2f8e271840e17b3bb9ba5359f2793f9574.exe44626.exedescription ioc process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\44626.exe c222122fe3e1206ba2363c17fb37ae2f8e271840e17b3bb9ba5359f2793f9574.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\44626.exe 44626.exe -
Executes dropped EXE 1 IoCs
Processes:
44626.exepid process 3460 44626.exe -
Loads dropped DLL 2 IoCs
Processes:
44626.exeEhStorAuthn.exepid process 3460 44626.exe 4516 EhStorAuthn.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
EhStorAuthn.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ = "C:\\Users\\Admin\\AppData\\Local\\z_Admin\\Admin.vbs" EhStorAuthn.exe -
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Maps connected drives based on registry 3 TTPs 6 IoCs
Disk information is often read in order to detect sandboxing environments.
Processes:
44626.exeEhStorAuthn.exec222122fe3e1206ba2363c17fb37ae2f8e271840e17b3bb9ba5359f2793f9574.exedescription ioc process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum 44626.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0 44626.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum EhStorAuthn.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0 EhStorAuthn.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum c222122fe3e1206ba2363c17fb37ae2f8e271840e17b3bb9ba5359f2793f9574.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0 c222122fe3e1206ba2363c17fb37ae2f8e271840e17b3bb9ba5359f2793f9574.exe -
Drops file in System32 directory 1 IoCs
Processes:
EhStorAuthn.exedescription ioc process File opened for modification C:\Windows\SysWOW64\EhStorAuthn.exe EhStorAuthn.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Program crash 2 IoCs
Processes:
WerFault.exeWerFault.exepid pid_target process target process 4184 3768 WerFault.exe c222122fe3e1206ba2363c17fb37ae2f8e271840e17b3bb9ba5359f2793f9574.exe 4620 3460 WerFault.exe 44626.exe -
Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
EhStorAuthn.exedescription ioc process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 EhStorAuthn.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString EhStorAuthn.exe -
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
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Runs ping.exe 1 TTPs 1 IoCs
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Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
44626.exepid process 3460 44626.exe 3460 44626.exe -
Suspicious use of WriteProcessMemory 19 IoCs
Processes:
c222122fe3e1206ba2363c17fb37ae2f8e271840e17b3bb9ba5359f2793f9574.execmd.exe44626.exeEhStorAuthn.exedescription pid process target process PID 3768 wrote to memory of 3460 3768 c222122fe3e1206ba2363c17fb37ae2f8e271840e17b3bb9ba5359f2793f9574.exe 44626.exe PID 3768 wrote to memory of 3460 3768 c222122fe3e1206ba2363c17fb37ae2f8e271840e17b3bb9ba5359f2793f9574.exe 44626.exe PID 3768 wrote to memory of 3460 3768 c222122fe3e1206ba2363c17fb37ae2f8e271840e17b3bb9ba5359f2793f9574.exe 44626.exe PID 3768 wrote to memory of 4924 3768 c222122fe3e1206ba2363c17fb37ae2f8e271840e17b3bb9ba5359f2793f9574.exe cmd.exe PID 3768 wrote to memory of 4924 3768 c222122fe3e1206ba2363c17fb37ae2f8e271840e17b3bb9ba5359f2793f9574.exe cmd.exe PID 3768 wrote to memory of 4924 3768 c222122fe3e1206ba2363c17fb37ae2f8e271840e17b3bb9ba5359f2793f9574.exe cmd.exe PID 4924 wrote to memory of 2980 4924 cmd.exe PING.EXE PID 4924 wrote to memory of 2980 4924 cmd.exe PING.EXE PID 4924 wrote to memory of 2980 4924 cmd.exe PING.EXE PID 4924 wrote to memory of 3852 4924 cmd.exe cmd.exe PID 4924 wrote to memory of 3852 4924 cmd.exe cmd.exe PID 4924 wrote to memory of 3852 4924 cmd.exe cmd.exe PID 3460 wrote to memory of 4516 3460 44626.exe EhStorAuthn.exe PID 3460 wrote to memory of 4516 3460 44626.exe EhStorAuthn.exe PID 3460 wrote to memory of 4516 3460 44626.exe EhStorAuthn.exe PID 3460 wrote to memory of 4516 3460 44626.exe EhStorAuthn.exe PID 4516 wrote to memory of 2892 4516 EhStorAuthn.exe schtasks.exe PID 4516 wrote to memory of 2892 4516 EhStorAuthn.exe schtasks.exe PID 4516 wrote to memory of 2892 4516 EhStorAuthn.exe schtasks.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\c222122fe3e1206ba2363c17fb37ae2f8e271840e17b3bb9ba5359f2793f9574.exe"C:\Users\Admin\AppData\Local\Temp\c222122fe3e1206ba2363c17fb37ae2f8e271840e17b3bb9ba5359f2793f9574.exe"1⤵
- Checks computer location settings
- Drops startup file
- Maps connected drives based on registry
- Suspicious use of WriteProcessMemory
PID:3768 -
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\44626.exe"C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\44626.exe"2⤵
- Drops startup file
- Executes dropped EXE
- Loads dropped DLL
- Maps connected drives based on registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:3460 -
C:\Windows\SysWOW64\EhStorAuthn.exe"C:\Windows\System32\EhStorAuthn.exe"3⤵
- Loads dropped DLL
- Adds Run key to start application
- Maps connected drives based on registry
- Drops file in System32 directory
- Checks processor information in registry
- Suspicious use of WriteProcessMemory
PID:4516 -
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /create /sc minute /mo 5 /tn "Maintenance" /tr "C:\Users\%USERNAME%\AppData\Local\z_%USERNAME%\%USERNAME%.vbs" /F4⤵
- Creates scheduled task(s)
PID:2892
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3460 -s 6483⤵
- Program crash
PID:4620
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C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Roaming\del.bat2⤵
- Suspicious use of WriteProcessMemory
PID:4924 -
C:\Windows\SysWOW64\PING.EXEping localhost -n 33⤵
- Runs ping.exe
PID:2980
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C:\Windows\SysWOW64\cmd.execmd /c del "C:\Users\Admin\AppData\Roaming\del.bat"3⤵PID:3852
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3768 -s 12522⤵
- Program crash
PID:4184
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 3768 -ip 37681⤵PID:4020
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 552 -p 3460 -ip 34601⤵PID:3640
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C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=1340 --field-trial-handle=2276,i,11674642242468042059,14711253743544118298,262144 --variations-seed-version /prefetch:81⤵PID:4972
Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Replay Monitor
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Downloads
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Filesize
1.6MB
MD54f3387277ccbd6d1f21ac5c07fe4ca68
SHA1e16506f662dc92023bf82def1d621497c8ab5890
SHA256767a3fc4a7a6818cdc3f0b99aaa95db694f6bcde719d2057a88b3d4df3d74fac
SHA5129da199ac69e3c0d4e0c6307e0ab8178f12cc25cb2f14c3511f6b64e6e60a925c860f3263cb38353a97b55a71ef4d27f8cb7fa3cfc08e7c1a349fd8d209dfa219
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Filesize
234KB
MD5ec0883bd8594cc34092a5e9a70a1b249
SHA14ba9c7d411006de1bf589eac2fa179d1d7120468
SHA256c222122fe3e1206ba2363c17fb37ae2f8e271840e17b3bb9ba5359f2793f9574
SHA5122cd9f53f426d1d083df8b81001c67d211546c79d6c4b66947d37cd603b5d65e38a137822b0b1e8b1149f55f1df1433f61aa64ca5ed4f6502353f0b5b879ce379
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Filesize
170B
MD531152ff9908e95a6436102811cc99874
SHA12c9919654a653fe21b55c0d61a8eb98a7d25ef87
SHA256f7f58acd6a97ab44d170a7229b9dbb26f53be8b2115a55ee09ad507425c47625
SHA51260e1791c7bb1cceb937c9238ddecd1121095ae9f882651274f01258999808ffe2e867038273b2d6c7522924fa74bc34d21d571181eede82a9f2030a8649041cd