Analysis Overview
SHA256
9cf4b83688dd5035623182d6a895c61e1e71ea02dc3e474111810f6641df1d69
Threat Level: Known bad
The file 9cf4b83688dd5035623182d6a895c61e1e71ea02dc3e474111810f6641df1d69 was found to be: Known bad.
Malicious Activity Summary
SaintBot payload
SaintBot
Executes dropped EXE
Checks computer location settings
Drops startup file
Deletes itself
Loads dropped DLL
Adds Run key to start application
Checks installed software on the system
Maps connected drives based on registry
Drops file in System32 directory
Enumerates physical storage devices
Unsigned PE
Program crash
Creates scheduled task(s)
Runs ping.exe
Suspicious use of WriteProcessMemory
Checks processor information in registry
Suspicious behavior: EnumeratesProcesses
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-04-10 12:57
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-04-10 12:57
Reported
2024-04-10 12:59
Platform
win7-20231129-en
Max time kernel
119s
Max time network
121s
Command Line
Signatures
SaintBot
SaintBot payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
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| N/A | N/A | N/A | N/A |
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| N/A | N/A | N/A | N/A |
Deletes itself
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\cmd.exe | N/A |
Drops startup file
| Description | Indicator | Process | Target |
| File created | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\26553.exe | C:\Users\Admin\AppData\Local\Temp\9cf4b83688dd5035623182d6a895c61e1e71ea02dc3e474111810f6641df1d69.exe | N/A |
| File opened for modification | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\26553.exe | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\26553.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\26553.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\9cf4b83688dd5035623182d6a895c61e1e71ea02dc3e474111810f6641df1d69.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\9cf4b83688dd5035623182d6a895c61e1e71ea02dc3e474111810f6641df1d69.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\26553.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\EhStorAuthn.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Windows\CurrentVersion\Run\ = "C:\\Users\\Admin\\AppData\\Local\\z_Admin\\Admin.vbs" | C:\Windows\SysWOW64\EhStorAuthn.exe | N/A |
Checks installed software on the system
Maps connected drives based on registry
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0 | C:\Windows\SysWOW64\EhStorAuthn.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum | C:\Users\Admin\AppData\Local\Temp\9cf4b83688dd5035623182d6a895c61e1e71ea02dc3e474111810f6641df1d69.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0 | C:\Users\Admin\AppData\Local\Temp\9cf4b83688dd5035623182d6a895c61e1e71ea02dc3e474111810f6641df1d69.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\26553.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0 | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\26553.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum | C:\Windows\SysWOW64\EhStorAuthn.exe | N/A |
Drops file in System32 directory
| Description | Indicator | Process | Target |
| File opened for modification | C:\Windows\SysWOW64\EhStorAuthn.exe | C:\Windows\SysWOW64\EhStorAuthn.exe | N/A |
Enumerates physical storage devices
Checks processor information in registry
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 | C:\Windows\SysWOW64\EhStorAuthn.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString | C:\Windows\SysWOW64\EhStorAuthn.exe | N/A |
Creates scheduled task(s)
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\schtasks.exe | N/A |
Runs ping.exe
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\PING.EXE | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\26553.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\9cf4b83688dd5035623182d6a895c61e1e71ea02dc3e474111810f6641df1d69.exe
"C:\Users\Admin\AppData\Local\Temp\9cf4b83688dd5035623182d6a895c61e1e71ea02dc3e474111810f6641df1d69.exe"
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\26553.exe
"C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\26553.exe"
C:\Windows\SysWOW64\cmd.exe
cmd /c C:\Users\Admin\AppData\Roaming\del.bat
C:\Windows\SysWOW64\PING.EXE
ping localhost -n 3
C:\Windows\SysWOW64\cmd.exe
cmd /c del "C:\Users\Admin\AppData\Roaming\del.bat"
C:\Windows\SysWOW64\EhStorAuthn.exe
"C:\Windows\System32\EhStorAuthn.exe"
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" /F
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | smm2021.net | udp |
| US | 50.2.155.18:80 | smm2021.net | tcp |
Files
memory/1072-2-0x0000000000020000-0x0000000000029000-memory.dmp
memory/1072-1-0x0000000001910000-0x0000000001A10000-memory.dmp
memory/1072-3-0x0000000000400000-0x0000000001783000-memory.dmp
\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\26553.exe
| MD5 | 572fdac6723a4031febc449795f51df5 |
| SHA1 | fdf8662e68a5dfc900cec85fa509ac392471e856 |
| SHA256 | 9cf4b83688dd5035623182d6a895c61e1e71ea02dc3e474111810f6641df1d69 |
| SHA512 | c62563eda61cafd5705f6f2fadbf0fc0a79837d1811305403ea774eddda6617bf0853c0f9b2d96dcd8ae5ae3d27a913b17939bd3b09784a07e236e7ef8a61888 |
C:\Users\Admin\AppData\Roaming\del.bat
| MD5 | fb48e940116e69dd07134e67397628a4 |
| SHA1 | bf3f0520a8e605e4cfb433c553d4a02a3f782458 |
| SHA256 | b68d4309791178d90aa1be2aa1919699f372d6fe959f7d012509b35f096a3455 |
| SHA512 | 29358cec8c7ad7b4f8dc7e4ca56c2a58f566e7508561f6f07c290ced0c09fa3d0702d1223045719986a1ef724231da8b9ce656dcb38ebe5362b6d26437256120 |
memory/1072-23-0x0000000000400000-0x0000000001783000-memory.dmp
memory/1992-26-0x0000000001BD0000-0x0000000001CD0000-memory.dmp
memory/1992-27-0x0000000000400000-0x0000000001783000-memory.dmp
C:\Users\Admin\AppData\Local\z_Admin\wallpaper.mp4
| MD5 | d124f55b9393c976963407dff51ffa79 |
| SHA1 | 2c7bbedd79791bfb866898c85b504186db610b5d |
| SHA256 | ea1e16247c848c8c171c4cd1fa17bc5a018a1fcb0c0dac25009066b6667b8eef |
| SHA512 | 278fe3a4b1fbbe700e4f4483b610133e975e36e101455661d5197bd892a68839b9d555499040d200c92aefa9e3819380e395c0cd85d5fc845c6364d128a8cf06 |
memory/1992-31-0x0000000000400000-0x0000000001783000-memory.dmp
memory/2604-33-0x0000000000080000-0x000000000008B000-memory.dmp
memory/2604-35-0x0000000000080000-0x000000000008B000-memory.dmp
memory/2604-36-0x0000000000080000-0x000000000008B000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-04-10 12:57
Reported
2024-04-10 12:59
Platform
win10v2004-20240226-en
Max time kernel
93s
Max time network
128s
Command Line
Signatures
SaintBot
SaintBot payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
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| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-3270530367-132075249-2153716227-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\9cf4b83688dd5035623182d6a895c61e1e71ea02dc3e474111810f6641df1d69.exe | N/A |
Drops startup file
| Description | Indicator | Process | Target |
| File created | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\23902.exe | C:\Users\Admin\AppData\Local\Temp\9cf4b83688dd5035623182d6a895c61e1e71ea02dc3e474111810f6641df1d69.exe | N/A |
| File opened for modification | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\23902.exe | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\23902.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\23902.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\23902.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\EhStorAuthn.exe | N/A |
Checks installed software on the system
Maps connected drives based on registry
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum | C:\Windows\SysWOW64\EhStorAuthn.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0 | C:\Windows\SysWOW64\EhStorAuthn.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum | C:\Users\Admin\AppData\Local\Temp\9cf4b83688dd5035623182d6a895c61e1e71ea02dc3e474111810f6641df1d69.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0 | C:\Users\Admin\AppData\Local\Temp\9cf4b83688dd5035623182d6a895c61e1e71ea02dc3e474111810f6641df1d69.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\23902.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0 | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\23902.exe | N/A |
Drops file in System32 directory
| Description | Indicator | Process | Target |
| File opened for modification | C:\Windows\SysWOW64\EhStorAuthn.exe | C:\Windows\SysWOW64\EhStorAuthn.exe | N/A |
Enumerates physical storage devices
Program crash
Checks processor information in registry
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 | C:\Windows\SysWOW64\EhStorAuthn.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString | C:\Windows\SysWOW64\EhStorAuthn.exe | N/A |
Creates scheduled task(s)
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\schtasks.exe | N/A |
Runs ping.exe
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\PING.EXE | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\23902.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\23902.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\9cf4b83688dd5035623182d6a895c61e1e71ea02dc3e474111810f6641df1d69.exe
"C:\Users\Admin\AppData\Local\Temp\9cf4b83688dd5035623182d6a895c61e1e71ea02dc3e474111810f6641df1d69.exe"
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\23902.exe
"C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\23902.exe"
C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Roaming\del.bat
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 4688 -ip 4688
C:\Windows\SysWOW64\PING.EXE
ping localhost -n 3
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4688 -s 792
C:\Windows\SysWOW64\cmd.exe
cmd /c del "C:\Users\Admin\AppData\Roaming\del.bat"
C:\Windows\SysWOW64\EhStorAuthn.exe
"C:\Windows\System32\EhStorAuthn.exe"
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 3872 -ip 3872
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3872 -s 616
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" /F
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 178.223.142.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 232.168.11.51.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 240.197.17.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 72.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 217.106.137.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | smm2021.net | udp |
| US | 8.8.8.8:53 | 104.219.191.52.in-addr.arpa | udp |
| US | 50.2.155.18:80 | smm2021.net | tcp |
| US | 8.8.8.8:53 | 18.155.2.50.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 26.165.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 56.126.166.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 17.14.97.104.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 11.227.111.52.in-addr.arpa | udp |
Files
memory/4688-1-0x00000000019F0000-0x0000000001AF0000-memory.dmp
memory/4688-2-0x0000000001860000-0x0000000001869000-memory.dmp
memory/4688-3-0x0000000000400000-0x0000000001783000-memory.dmp
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\23902.exe
| MD5 | 572fdac6723a4031febc449795f51df5 |
| SHA1 | fdf8662e68a5dfc900cec85fa509ac392471e856 |
| SHA256 | 9cf4b83688dd5035623182d6a895c61e1e71ea02dc3e474111810f6641df1d69 |
| SHA512 | c62563eda61cafd5705f6f2fadbf0fc0a79837d1811305403ea774eddda6617bf0853c0f9b2d96dcd8ae5ae3d27a913b17939bd3b09784a07e236e7ef8a61888 |
C:\Users\Admin\AppData\Roaming\del.bat
| MD5 | fb48e940116e69dd07134e67397628a4 |
| SHA1 | bf3f0520a8e605e4cfb433c553d4a02a3f782458 |
| SHA256 | b68d4309791178d90aa1be2aa1919699f372d6fe959f7d012509b35f096a3455 |
| SHA512 | 29358cec8c7ad7b4f8dc7e4ca56c2a58f566e7508561f6f07c290ced0c09fa3d0702d1223045719986a1ef724231da8b9ce656dcb38ebe5362b6d26437256120 |
memory/3872-22-0x0000000001A90000-0x0000000001B90000-memory.dmp
memory/3872-23-0x0000000000400000-0x0000000001783000-memory.dmp
memory/4688-24-0x0000000000400000-0x0000000001783000-memory.dmp
C:\Users\Admin\AppData\Local\z_Admin\wallpaper.mp4
| MD5 | 4f3387277ccbd6d1f21ac5c07fe4ca68 |
| SHA1 | e16506f662dc92023bf82def1d621497c8ab5890 |
| SHA256 | 767a3fc4a7a6818cdc3f0b99aaa95db694f6bcde719d2057a88b3d4df3d74fac |
| SHA512 | 9da199ac69e3c0d4e0c6307e0ab8178f12cc25cb2f14c3511f6b64e6e60a925c860f3263cb38353a97b55a71ef4d27f8cb7fa3cfc08e7c1a349fd8d209dfa219 |
memory/3872-27-0x0000000000400000-0x0000000001783000-memory.dmp
memory/372-28-0x0000000000FA0000-0x0000000000FAB000-memory.dmp
memory/372-31-0x0000000000FA0000-0x0000000000FAB000-memory.dmp
memory/372-32-0x0000000000FA0000-0x0000000000FAB000-memory.dmp