Analysis
- max time kernel
123s - max time network
127s - platform
windows11-21h2_x64 - resource
win11-20240426-en - resource tags
- submitted
08/06/2024, 23:50
General
- Target 30c91a4758fbd74b7d2f99f45f7f7504045da6265913c6adb21c2f2f82d7c0a1.exe
- Size 4.7MB
- Sample240608-3vyslabb45
- SHA256 30c91a4758fbd74b7d2f99f45f7f7504045da6265913c6adb21c2f2f82d7c0a1
Malware Config
Extracted
-
socks5systemz
-
ebebuxq.ua
-
http://ebebuxq.ua/search/?q=67e28dd8655ba77a135ffe187c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa48e8889b5e4fa9281ae978a571ea771795af8e05c645db22f31dfe339426fa12a466c553adb719a9577e55b8603e983a608ff819c9ef929a32
-
http://ebebuxq.ua/search/?q=67e28dd8655ba77a135ffe187c27d78406abdd88be4b12eab517aa5c96bd86e8968248805a8bbc896c58e713bc90c91d36b5281fc235a925ed3e06d6bd974a95129070b616e96cc92be510b866db51b9e34eed4c2b14a82966836f23d7f210c7ee929232cd68961f
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 FindShellTrayWindow 1 IoCs
- Suspicious use of WriteProcessMemory 9 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\30c91a4758fbd74b7d2f99f45f7f7504045da6265913c6adb21c2f2f82d7c0a1.exe"C:\Users\Admin\AppData\Local\Temp\30c91a4758fbd74b7d2f99f45f7f7504045da6265913c6adb21c2f2f82d7c0a1.exe"1⤵
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\is-S2B1P.tmp\30c91a4758fbd74b7d2f99f45f7f7504045da6265913c6adb21c2f2f82d7c0a1.tmp"C:\Users\Admin\AppData\Local\Temp\is-S2B1P.tmp\30c91a4758fbd74b7d2f99f45f7f7504045da6265913c6adb21c2f2f82d7c0a1.tmp" /SL5="$4020E,4689558,54272,C:\Users\Admin\AppData\Local\Temp\30c91a4758fbd74b7d2f99f45f7f7504045da6265913c6adb21c2f2f82d7c0a1.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Lesser Extent\lesserextent32.exe"C:\Users\Admin\AppData\Local\Lesser Extent\lesserextent32.exe" -i3⤵
- Executes dropped EXE
-
-
C:\Users\Admin\AppData\Local\Lesser Extent\lesserextent32.exe"C:\Users\Admin\AppData\Local\Lesser Extent\lesserextent32.exe" -s3⤵
- Executes dropped EXE
-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
lesserextent32.exe
_iscrypt.dll
30c91a4758fbd74b7d2f99f45f7f7504045da6265913c6adb21c2f2f82d7c0a1.tmp
memory/1976-70-0x0000000000400000-0x0000000000414000-memory.dmp
memory/1976-2-0x0000000000401000-0x000000000040B000-memory.dmp
memory/1976-0-0x0000000000400000-0x0000000000414000-memory.dmp
memory/3828-101-0x0000000000400000-0x00000000006C5000-memory.dmp
memory/3828-104-0x0000000000400000-0x00000000006C5000-memory.dmp
memory/3828-119-0x0000000000400000-0x00000000006C5000-memory.dmp
memory/3828-116-0x0000000000400000-0x00000000006C5000-memory.dmp
memory/3828-68-0x0000000000400000-0x00000000006C5000-memory.dmp
memory/3828-69-0x0000000000400000-0x00000000006C5000-memory.dmp
memory/3828-111-0x0000000002490000-0x0000000002532000-memory.dmp
memory/3828-112-0x0000000002490000-0x0000000002532000-memory.dmp
memory/3828-72-0x0000000000400000-0x00000000006C5000-memory.dmp
memory/3828-73-0x0000000000400000-0x00000000006C5000-memory.dmp
memory/3828-76-0x0000000000400000-0x00000000006C5000-memory.dmp
memory/3828-79-0x0000000000400000-0x00000000006C5000-memory.dmp
memory/3828-82-0x0000000000400000-0x00000000006C5000-memory.dmp
memory/3828-85-0x0000000000400000-0x00000000006C5000-memory.dmp
memory/3828-86-0x0000000002490000-0x0000000002532000-memory.dmp
memory/3828-89-0x0000000000400000-0x00000000006C5000-memory.dmp
memory/3828-95-0x0000000000400000-0x00000000006C5000-memory.dmp
memory/3828-98-0x0000000000400000-0x00000000006C5000-memory.dmp
memory/3828-110-0x0000000000400000-0x00000000006C5000-memory.dmp
memory/3828-107-0x0000000000400000-0x00000000006C5000-memory.dmp
memory/4028-63-0x0000000000400000-0x00000000006C5000-memory.dmp
memory/4028-60-0x0000000000400000-0x00000000006C5000-memory.dmp
memory/4028-59-0x0000000000400000-0x00000000006C5000-memory.dmp
memory/4028-65-0x0000000000400000-0x00000000006C5000-memory.dmp
memory/4136-10-0x0000000000400000-0x00000000004BA000-memory.dmp
memory/4136-71-0x0000000000400000-0x00000000004BA000-memory.dmp