Analysis
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max time kernel
151s -
max time network
152s -
platform
windows10-2004_x64 -
resource
win10v2004-20230221-en -
resource tags
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submitted
28-03-2023 21:53
General
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Target
8BA1C9EA4DDD6AEE51738CDE96EC735E.exe
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Size
4.1MB
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MD5
8ba1c9ea4ddd6aee51738cde96ec735e
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SHA1
4ddf225992b76be52b2ed965b1d75a15f3535a7a
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SHA256
ec24aeefd8dec2d7186b1f84f3308e296f82db37817db2e0bae96e0825962d75
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SHA512
cc0bbf366441c2c0f91044f247dad461e71ec7e86cc4a9a7393be235bf4dbb9f918312e55ea4cb4b0c0cb7f6f7b508a5b4756e119bab0aacd5cc9c954e3c0923
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SSDEEP
98304:kELwTlvdgEX2NpXI1CvrZ0wYkLx78mDXz//wDHa17+P6a+DsJxVO2PFh:kEaAEXAsCv10rkLuUz//Wa1iPqsJxVOU
Malware Config
Signatures
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Glupteba
Glupteba is a modular loader written in Golang with various components.
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Glupteba payload 16 IoCs
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Modifies Windows Firewall 1 TTPs 1 IoCs
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Executes dropped EXE 2 IoCs
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Adds Run key to start application 2 TTPs 2 IoCs
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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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Legitimate hosting services abused for malware hosting/C2 1 TTPs
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Manipulates WinMonFS driver. 1 IoCs
Roottkits write to WinMonFS to hide directories/files from being detected.
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Checks for VirtualBox DLLs, possible anti-VM trick 1 TTPs 1 IoCs
Certain files are specific to VirtualBox VMs and can be used to detect execution in a VM.
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Drops file in Windows directory 2 IoCs
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Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
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Modifies data under HKEY_USERS 64 IoCs
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Suspicious behavior: EnumeratesProcesses 64 IoCs
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Suspicious use of AdjustPrivilegeToken 3 IoCs
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Suspicious use of WriteProcessMemory 9 IoCs
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Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
Processes
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C:\Users\Admin\AppData\Local\Temp\8BA1C9EA4DDD6AEE51738CDE96EC735E.exe"C:\Users\Admin\AppData\Local\Temp\8BA1C9EA4DDD6AEE51738CDE96EC735E.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Users\Admin\AppData\Local\Temp\8BA1C9EA4DDD6AEE51738CDE96EC735E.exe"C:\Users\Admin\AppData\Local\Temp\8BA1C9EA4DDD6AEE51738CDE96EC735E.exe"2⤵
- Adds Run key to start application
- Checks for VirtualBox DLLs, possible anti-VM trick
- Drops file in Windows directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\cmd.exeC:\Windows\Sysnative\cmd.exe /C "netsh advfirewall firewall add rule name="csrss" dir=in action=allow program="C:\Windows\rss\csrss.exe" enable=yes"3⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\netsh.exenetsh advfirewall firewall add rule name="csrss" dir=in action=allow program="C:\Windows\rss\csrss.exe" enable=yes4⤵
- Modifies Windows Firewall
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C:\Windows\rss\csrss.exeC:\Windows\rss\csrss.exe3⤵
- Executes dropped EXE
- Adds Run key to start application
- Manipulates WinMonFS driver.
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SYSTEM32\schtasks.exeschtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F4⤵
- Creates scheduled task(s)
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C:\Windows\SYSTEM32\schtasks.exeschtasks /delete /tn ScheduledUpdate /f4⤵
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C:\Users\Admin\AppData\Local\Temp\csrss\injector\injector.exeC:\Users\Admin\AppData\Local\Temp\csrss\injector\injector.exe taskmgr.exe C:\Users\Admin\AppData\Local\Temp\csrss\injector\NtQuerySystemInformationHook.dll4⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
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C:\Windows\SYSTEM32\schtasks.exeschtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F4⤵
- Creates scheduled task(s)
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
281KB
MD5d98e33b66343e7c96158444127a117f6
SHA1bb716c5509a2bf345c6c1152f6e3e1452d39d50d
SHA2565de4e2b07a26102fe527606ce5da1d5a4b938967c9d380a3c5fe86e2e34aaaf1
SHA512705275e4a1ba8205eb799a8cf1737bc8ba686925e52c9198a6060a7abeee65552a85b814ac494a4b975d496a63be285f19a6265550585f2fc85824c42d7efab5
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Filesize
281KB
MD5d98e33b66343e7c96158444127a117f6
SHA1bb716c5509a2bf345c6c1152f6e3e1452d39d50d
SHA2565de4e2b07a26102fe527606ce5da1d5a4b938967c9d380a3c5fe86e2e34aaaf1
SHA512705275e4a1ba8205eb799a8cf1737bc8ba686925e52c9198a6060a7abeee65552a85b814ac494a4b975d496a63be285f19a6265550585f2fc85824c42d7efab5
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Filesize
4.1MB
MD58ba1c9ea4ddd6aee51738cde96ec735e
SHA14ddf225992b76be52b2ed965b1d75a15f3535a7a
SHA256ec24aeefd8dec2d7186b1f84f3308e296f82db37817db2e0bae96e0825962d75
SHA512cc0bbf366441c2c0f91044f247dad461e71ec7e86cc4a9a7393be235bf4dbb9f918312e55ea4cb4b0c0cb7f6f7b508a5b4756e119bab0aacd5cc9c954e3c0923
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Filesize
4.1MB
MD58ba1c9ea4ddd6aee51738cde96ec735e
SHA14ddf225992b76be52b2ed965b1d75a15f3535a7a
SHA256ec24aeefd8dec2d7186b1f84f3308e296f82db37817db2e0bae96e0825962d75
SHA512cc0bbf366441c2c0f91044f247dad461e71ec7e86cc4a9a7393be235bf4dbb9f918312e55ea4cb4b0c0cb7f6f7b508a5b4756e119bab0aacd5cc9c954e3c0923
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Filesize
43.3MB
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Filesize
43.3MB
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Filesize
43.3MB
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Filesize
43.3MB
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Filesize
43.3MB
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Filesize
43.3MB
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Filesize
43.3MB
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Filesize
43.3MB
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Filesize
43.3MB
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Filesize
43.3MB
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Filesize
43.3MB
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Filesize
43.3MB
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Filesize
43.3MB
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Filesize
43.3MB
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Filesize
43.3MB
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Filesize
8.5MB