Analysis
- max time kernel
144s - max time network
144s - platform
windows10-2004_x64 - resource
win10v2004-20240226-en - resource tags
- submitted
25/03/2024, 01:41
General
- Target 76836cbb9920f7b6f427b5dfce569df588b2344e85c4c2e7b55c791451b6b6a1.exe
- Size 2.2MB
- Sample240325-b4j71sce69
- SHA256 76836cbb9920f7b6f427b5dfce569df588b2344e85c4c2e7b55c791451b6b6a1
Malware Config
Extracted
-
socks5systemz
-
http://bfgrmey.com/search/?q=67e28dd86b5ea42a430af91a7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ce8889b5e4fa9281ae978a771ea771795af8e05c646db22f31dfe339426fa11af66c152adb719a9577e55b8603e983a608ffe12c3ef9c9d3c
Signatures
- Detect Socks5Systemz Payload 3 IoCs
- Socks5Systemz
Socks5Systemz is a botnet written in C++.
- Executes dropped EXE 3 IoCs
- Loads dropped DLL 1 IoCs
- Unexpected DNS network traffic destination 1 IoCs
Network traffic to other servers than the configured DNS servers was detected on the DNS port.
- Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Suspicious use of WriteProcessMemory 9 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\76836cbb9920f7b6f427b5dfce569df588b2344e85c4c2e7b55c791451b6b6a1.exe"C:\Users\Admin\AppData\Local\Temp\76836cbb9920f7b6f427b5dfce569df588b2344e85c4c2e7b55c791451b6b6a1.exe"1⤵
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\is-HC40J.tmp\76836cbb9920f7b6f427b5dfce569df588b2344e85c4c2e7b55c791451b6b6a1.tmp"C:\Users\Admin\AppData\Local\Temp\is-HC40J.tmp\76836cbb9920f7b6f427b5dfce569df588b2344e85c4c2e7b55c791451b6b6a1.tmp" /SL5="$12004C,1963376,54272,C:\Users\Admin\AppData\Local\Temp\76836cbb9920f7b6f427b5dfce569df588b2344e85c4c2e7b55c791451b6b6a1.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Color Picker\colorpicker32.exe"C:\Users\Admin\AppData\Local\Color Picker\colorpicker32.exe" -i3⤵
- Executes dropped EXE
-
-
C:\Users\Admin\AppData\Local\Color Picker\colorpicker32.exe"C:\Users\Admin\AppData\Local\Color Picker\colorpicker32.exe" -s3⤵
- Executes dropped EXE
-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
colorpicker32.exe
colorpicker32.exe
colorpicker32.exe
76836cbb9920f7b6f427b5dfce569df588b2344e85c4c2e7b55c791451b6b6a1.tmp
_iscrypt.dll
memory/1392-69-0x0000000000880000-0x0000000000922000-memory.dmp
memory/1392-78-0x0000000000880000-0x0000000000922000-memory.dmp
memory/1392-97-0x0000000000400000-0x0000000000642000-memory.dmp
memory/1392-94-0x0000000000400000-0x0000000000642000-memory.dmp
memory/1392-90-0x0000000000400000-0x0000000000642000-memory.dmp
memory/1392-87-0x0000000000400000-0x0000000000642000-memory.dmp
memory/1392-84-0x0000000000400000-0x0000000000642000-memory.dmp
memory/1392-46-0x0000000000400000-0x0000000000642000-memory.dmp
memory/1392-81-0x0000000000400000-0x0000000000642000-memory.dmp
memory/1392-77-0x0000000000400000-0x0000000000642000-memory.dmp
memory/1392-49-0x0000000000400000-0x0000000000642000-memory.dmp
memory/1392-74-0x0000000000400000-0x0000000000642000-memory.dmp
memory/1392-53-0x0000000000400000-0x0000000000642000-memory.dmp
memory/1392-54-0x0000000000400000-0x0000000000642000-memory.dmp
memory/1392-57-0x0000000000400000-0x0000000000642000-memory.dmp
memory/1392-60-0x0000000000400000-0x0000000000642000-memory.dmp
memory/1392-63-0x0000000000400000-0x0000000000642000-memory.dmp
memory/1392-65-0x0000000000880000-0x0000000000922000-memory.dmp
memory/1392-68-0x0000000000400000-0x0000000000642000-memory.dmp
memory/1780-38-0x0000000000400000-0x0000000000642000-memory.dmp
memory/1780-43-0x0000000000400000-0x0000000000642000-memory.dmp
memory/1780-42-0x0000000000400000-0x0000000000642000-memory.dmp
memory/1780-39-0x0000000000400000-0x0000000000642000-memory.dmp
memory/3096-50-0x00000000007A0000-0x00000000007A1000-memory.dmp
memory/3096-48-0x0000000000400000-0x00000000004B8000-memory.dmp
memory/3096-7-0x00000000007A0000-0x00000000007A1000-memory.dmp
memory/4292-0-0x0000000000400000-0x0000000000414000-memory.dmp
memory/4292-47-0x0000000000400000-0x0000000000414000-memory.dmp
memory/4292-2-0x0000000000400000-0x0000000000414000-memory.dmp