Analysis
- max time kernel
293s - max time network
298s - platform
windows10-1703_x64 - resource
win10-20240404-en - resource tags
- submitted
01/08/2024, 22:46
General
- Target ad433d3bf19f742f7323019f6d1e202f171e9b0acd37807ae148188d9dad66f5.exe
- Size 4.1MB
- Sample240801-2qecqazgrj
- SHA256 ad433d3bf19f742f7323019f6d1e202f171e9b0acd37807ae148188d9dad66f5
Malware Config
Signatures
- Detect Socks5Systemz Payload 1 IoCs
- Socks5Systemz
Socks5Systemz is a botnet written in C++.
- Executes dropped EXE 3 IoCs
- Loads dropped DLL 3 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.
- System Location Discovery: System Language Discovery 1 TTPs 4 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Suspicious behavior: EnumeratesProcesses 2 IoCs
- Suspicious use of FindShellTrayWindow 1 IoCs
- Suspicious use of WriteProcessMemory 9 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\ad433d3bf19f742f7323019f6d1e202f171e9b0acd37807ae148188d9dad66f5.exe"C:\Users\Admin\AppData\Local\Temp\ad433d3bf19f742f7323019f6d1e202f171e9b0acd37807ae148188d9dad66f5.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\is-R78RE.tmp\ad433d3bf19f742f7323019f6d1e202f171e9b0acd37807ae148188d9dad66f5.tmp"C:\Users\Admin\AppData\Local\Temp\is-R78RE.tmp\ad433d3bf19f742f7323019f6d1e202f171e9b0acd37807ae148188d9dad66f5.tmp" /SL5="$7021C,4031541,54272,C:\Users\Admin\AppData\Local\Temp\ad433d3bf19f742f7323019f6d1e202f171e9b0acd37807ae148188d9dad66f5.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\SuffixEx\suffixex32_64.exe"C:\Users\Admin\AppData\Local\SuffixEx\suffixex32_64.exe" -i3⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
-
-
C:\Users\Admin\AppData\Local\SuffixEx\suffixex32_64.exe"C:\Users\Admin\AppData\Local\SuffixEx\suffixex32_64.exe" -s3⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
suffixex32_64.exe
ad433d3bf19f742f7323019f6d1e202f171e9b0acd37807ae148188d9dad66f5.tmp
_iscrypt.dll
_isdecmp.dll
memory/308-103-0x0000000000400000-0x000000000078F000-memory.dmp
memory/308-100-0x0000000000400000-0x000000000078F000-memory.dmp
memory/308-127-0x0000000000400000-0x000000000078F000-memory.dmp
memory/308-122-0x0000000000400000-0x000000000078F000-memory.dmp
memory/308-119-0x0000000000400000-0x000000000078F000-memory.dmp
memory/308-116-0x0000000000400000-0x000000000078F000-memory.dmp
memory/308-113-0x0000000000400000-0x000000000078F000-memory.dmp
memory/308-110-0x0000000000400000-0x000000000078F000-memory.dmp
memory/308-66-0x0000000000400000-0x000000000078F000-memory.dmp
memory/308-69-0x0000000000400000-0x000000000078F000-memory.dmp
memory/308-72-0x0000000000400000-0x000000000078F000-memory.dmp
memory/308-75-0x0000000000400000-0x000000000078F000-memory.dmp
memory/308-78-0x0000000000400000-0x000000000078F000-memory.dmp
memory/308-81-0x0000000000A70000-0x0000000000B12000-memory.dmp
memory/308-83-0x0000000000400000-0x000000000078F000-memory.dmp
memory/308-88-0x0000000000400000-0x000000000078F000-memory.dmp
memory/308-91-0x0000000000400000-0x000000000078F000-memory.dmp
memory/308-94-0x0000000000400000-0x000000000078F000-memory.dmp
memory/308-97-0x0000000000400000-0x000000000078F000-memory.dmp
memory/308-107-0x0000000000400000-0x000000000078F000-memory.dmp
memory/1424-2-0x0000000000401000-0x000000000040B000-memory.dmp
memory/1424-64-0x0000000000400000-0x0000000000414000-memory.dmp
memory/1424-0-0x0000000000400000-0x0000000000414000-memory.dmp
memory/1588-19-0x0000000000400000-0x00000000004BD000-memory.dmp
memory/1588-65-0x0000000000400000-0x00000000004BD000-memory.dmp
memory/4472-61-0x0000000000400000-0x000000000078F000-memory.dmp
memory/4472-59-0x0000000000400000-0x000000000078F000-memory.dmp
memory/4472-58-0x0000000000400000-0x000000000078F000-memory.dmp