Analysis
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max time kernel
168s -
max time network
171s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
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submitted
29-01-2023 17:55
General
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Target
1d12e2a1af0e041106a113a75df76c4d781000b23083f82e7022a51009ed449f.exe
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Size
4.1MB
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MD5
959ed9bedd1c232100902cd07f81f676
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SHA1
a44a89ada89c160dffcbfd37c1271442009adb81
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SHA256
1d12e2a1af0e041106a113a75df76c4d781000b23083f82e7022a51009ed449f
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SHA512
a2b309d3112565965cdc6983e81f304cb7399cadc10142da2c439722808e7cec82631715156fd9afc8c217aee8d406d31897cc0fdb396ff869cda1217cf4d984
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SSDEEP
98304:U0NbFUIu/8w08IEUP9yX5i9T1xEzZWg0QTa/Bcc6a0W1Lpw:Umi/8pxEUC6TfBcBafc
Malware Config
Signatures
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Glupteba
Glupteba is a modular loader written in Golang with various components.
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Suspicious use of NtCreateUserProcessOtherParentProcess 4 IoCs
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Executes dropped EXE 2 IoCs
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Modifies Windows Firewall 1 TTPs 1 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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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 17 IoCs
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Suspicious use of WriteProcessMemory 18 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\1d12e2a1af0e041106a113a75df76c4d781000b23083f82e7022a51009ed449f.exe"C:\Users\Admin\AppData\Local\Temp\1d12e2a1af0e041106a113a75df76c4d781000b23083f82e7022a51009ed449f.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Users\Admin\AppData\Local\Temp\1d12e2a1af0e041106a113a75df76c4d781000b23083f82e7022a51009ed449f.exe"C:\Users\Admin\AppData\Local\Temp\1d12e2a1af0e041106a113a75df76c4d781000b23083f82e7022a51009ed449f.exe"2⤵
- Adds Run key to start application
- 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
- 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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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k netsvcs -p -s seclogon1⤵
- Suspicious use of NtCreateUserProcessOtherParentProcess
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Local\Temp\csrss\injector\injector.exeFilesize
281KB
MD5d98e33b66343e7c96158444127a117f6
SHA1bb716c5509a2bf345c6c1152f6e3e1452d39d50d
SHA2565de4e2b07a26102fe527606ce5da1d5a4b938967c9d380a3c5fe86e2e34aaaf1
SHA512705275e4a1ba8205eb799a8cf1737bc8ba686925e52c9198a6060a7abeee65552a85b814ac494a4b975d496a63be285f19a6265550585f2fc85824c42d7efab5
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C:\Users\Admin\AppData\Local\Temp\csrss\injector\injector.exeFilesize
281KB
MD5d98e33b66343e7c96158444127a117f6
SHA1bb716c5509a2bf345c6c1152f6e3e1452d39d50d
SHA2565de4e2b07a26102fe527606ce5da1d5a4b938967c9d380a3c5fe86e2e34aaaf1
SHA512705275e4a1ba8205eb799a8cf1737bc8ba686925e52c9198a6060a7abeee65552a85b814ac494a4b975d496a63be285f19a6265550585f2fc85824c42d7efab5
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C:\Windows\rss\csrss.exeFilesize
4.1MB
MD5959ed9bedd1c232100902cd07f81f676
SHA1a44a89ada89c160dffcbfd37c1271442009adb81
SHA2561d12e2a1af0e041106a113a75df76c4d781000b23083f82e7022a51009ed449f
SHA512a2b309d3112565965cdc6983e81f304cb7399cadc10142da2c439722808e7cec82631715156fd9afc8c217aee8d406d31897cc0fdb396ff869cda1217cf4d984
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C:\Windows\rss\csrss.exeFilesize
4.1MB
MD5959ed9bedd1c232100902cd07f81f676
SHA1a44a89ada89c160dffcbfd37c1271442009adb81
SHA2561d12e2a1af0e041106a113a75df76c4d781000b23083f82e7022a51009ed449f
SHA512a2b309d3112565965cdc6983e81f304cb7399cadc10142da2c439722808e7cec82631715156fd9afc8c217aee8d406d31897cc0fdb396ff869cda1217cf4d984
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memory/1504-145-0x0000000000000000-mapping.dmp
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memory/2272-139-0x0000000000000000-mapping.dmp
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memory/3392-137-0x0000000002AC9000-0x0000000002EB2000-memory.dmpFilesize
3.9MB
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memory/3392-144-0x0000000000400000-0x0000000000C91000-memory.dmpFilesize
8.6MB
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memory/3392-140-0x0000000000400000-0x0000000000C91000-memory.dmpFilesize
8.6MB
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memory/3392-135-0x0000000000000000-mapping.dmp
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memory/3408-149-0x0000000000000000-mapping.dmp
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memory/3632-132-0x0000000002BDA000-0x0000000002FC3000-memory.dmpFilesize
3.9MB
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memory/3632-136-0x0000000000400000-0x0000000000C91000-memory.dmpFilesize
8.6MB
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memory/3632-134-0x0000000000400000-0x0000000000C91000-memory.dmpFilesize
8.6MB
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memory/3632-133-0x0000000002FD0000-0x0000000003847000-memory.dmpFilesize
8.5MB
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memory/3744-147-0x0000000000000000-mapping.dmp
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memory/3896-152-0x0000000000000000-mapping.dmp
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memory/4404-146-0x0000000002E00000-0x00000000031E9000-memory.dmpFilesize
3.9MB
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memory/4404-148-0x0000000000400000-0x0000000000C91000-memory.dmpFilesize
8.6MB
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memory/4404-141-0x0000000000000000-mapping.dmp
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memory/4404-153-0x0000000000400000-0x0000000000C91000-memory.dmpFilesize
8.6MB
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memory/4844-138-0x0000000000000000-mapping.dmp