Analysis
- max time kernel
295s - max time network
299s - platform
windows10-1703_x64 - resource
win10-20240611-en - resource tags
- submitted
01/08/2024, 22:38
General
- Target 577d1adaf1ffacdcb0b86d66f9a0beb6a63c2e2082044575dbaa70310614ae42.exe
- Size 4.1MB
- Sample240801-2ktkfsvblg
- SHA256 577d1adaf1ffacdcb0b86d66f9a0beb6a63c2e2082044575dbaa70310614ae42
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\577d1adaf1ffacdcb0b86d66f9a0beb6a63c2e2082044575dbaa70310614ae42.exe"C:\Users\Admin\AppData\Local\Temp\577d1adaf1ffacdcb0b86d66f9a0beb6a63c2e2082044575dbaa70310614ae42.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\is-OB1SI.tmp\577d1adaf1ffacdcb0b86d66f9a0beb6a63c2e2082044575dbaa70310614ae42.tmp"C:\Users\Admin\AppData\Local\Temp\is-OB1SI.tmp\577d1adaf1ffacdcb0b86d66f9a0beb6a63c2e2082044575dbaa70310614ae42.tmp" /SL5="$5020C,4025586,54272,C:\Users\Admin\AppData\Local\Temp\577d1adaf1ffacdcb0b86d66f9a0beb6a63c2e2082044575dbaa70310614ae42.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
577d1adaf1ffacdcb0b86d66f9a0beb6a63c2e2082044575dbaa70310614ae42.tmp
_iscrypt.dll
_isdecmp.dll
memory/96-103-0x0000000000400000-0x000000000078F000-memory.dmp
memory/96-100-0x0000000000400000-0x000000000078F000-memory.dmp
memory/96-127-0x0000000000400000-0x000000000078F000-memory.dmp
memory/96-122-0x0000000000400000-0x000000000078F000-memory.dmp
memory/96-119-0x0000000000400000-0x000000000078F000-memory.dmp
memory/96-116-0x0000000000400000-0x000000000078F000-memory.dmp
memory/96-113-0x0000000000400000-0x000000000078F000-memory.dmp
memory/96-110-0x0000000000400000-0x000000000078F000-memory.dmp
memory/96-66-0x0000000000400000-0x000000000078F000-memory.dmp
memory/96-69-0x0000000000400000-0x000000000078F000-memory.dmp
memory/96-72-0x0000000000400000-0x000000000078F000-memory.dmp
memory/96-75-0x0000000000400000-0x000000000078F000-memory.dmp
memory/96-78-0x0000000000400000-0x000000000078F000-memory.dmp
memory/96-81-0x00000000009D0000-0x0000000000A72000-memory.dmp
memory/96-83-0x0000000000400000-0x000000000078F000-memory.dmp
memory/96-88-0x0000000000400000-0x000000000078F000-memory.dmp
memory/96-91-0x0000000000400000-0x000000000078F000-memory.dmp
memory/96-94-0x0000000000400000-0x000000000078F000-memory.dmp
memory/96-97-0x0000000000400000-0x000000000078F000-memory.dmp
memory/96-107-0x0000000000400000-0x000000000078F000-memory.dmp
memory/824-10-0x0000000000400000-0x00000000004BD000-memory.dmp
memory/824-65-0x0000000000400000-0x00000000004BD000-memory.dmp
memory/3208-0-0x0000000000400000-0x0000000000414000-memory.dmp
memory/3208-64-0x0000000000400000-0x0000000000414000-memory.dmp
memory/3208-2-0x0000000000401000-0x000000000040B000-memory.dmp
memory/4692-61-0x0000000000400000-0x000000000078F000-memory.dmp
memory/4692-59-0x0000000000400000-0x000000000078F000-memory.dmp
memory/4692-58-0x0000000000400000-0x000000000078F000-memory.dmp