Analysis
- max time kernel
149s - max time network
146s - platform
windows7_x64 - resource
win7-20240221-en - resource tags
- submitted
09/04/2024, 04:16
General
- Target 58ded1f2ba21c90c0f071585efc54690.exe
- Size 4.1MB
- Sample240409-evspksed73
- SHA256 fb2bcf07adb62ba76d441eae8ea5adbbc37dc4d5dea66e5fd1ab85c06fbf3efc
Malware Config
Extracted
-
socks5systemz
-
http://bpivtsu.com/search/?q=67e28dd83d5fa62d1358fa4d7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4de8889b5e4fa9281ae978ff71ea771795af8e05c645db22f31df92d8b38e316a667d307eca743ec4c2b07b52966923a6588fc17c2eb95
Signatures
- Detect Socks5Systemz Payload 3 IoCs
- Socks5Systemz
Socks5Systemz is a botnet written in C++.
- Executes dropped EXE 3 IoCs
- Loads dropped DLL 5 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 15 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\58ded1f2ba21c90c0f071585efc54690.exe"C:\Users\Admin\AppData\Local\Temp\58ded1f2ba21c90c0f071585efc54690.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\is-8S3R6.tmp\58ded1f2ba21c90c0f071585efc54690.tmp"C:\Users\Admin\AppData\Local\Temp\is-8S3R6.tmp\58ded1f2ba21c90c0f071585efc54690.tmp" /SL5="$7011E,3888835,54272,C:\Users\Admin\AppData\Local\Temp\58ded1f2ba21c90c0f071585efc54690.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Sun Vox\sunvox.exe"C:\Users\Admin\AppData\Local\Sun Vox\sunvox.exe" -i3⤵
- Executes dropped EXE
-
-
C:\Users\Admin\AppData\Local\Sun Vox\sunvox.exe"C:\Users\Admin\AppData\Local\Sun Vox\sunvox.exe" -s3⤵
- Executes dropped EXE
-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
sunvox.exe
58ded1f2ba21c90c0f071585efc54690.tmp
_iscrypt.dll
_shfoldr.dll
memory/2460-52-0x0000000000400000-0x00000000006AC000-memory.dmp
memory/2460-54-0x0000000000400000-0x00000000006AC000-memory.dmp
memory/2460-106-0x0000000000400000-0x00000000006AC000-memory.dmp
memory/2460-99-0x0000000000400000-0x00000000006AC000-memory.dmp
memory/2460-96-0x0000000000400000-0x00000000006AC000-memory.dmp
memory/2460-93-0x0000000000400000-0x00000000006AC000-memory.dmp
memory/2460-90-0x0000000000400000-0x00000000006AC000-memory.dmp
memory/2460-89-0x0000000002800000-0x00000000028A2000-memory.dmp
memory/2460-75-0x0000000000400000-0x00000000006AC000-memory.dmp
memory/2460-103-0x0000000000400000-0x00000000006AC000-memory.dmp
memory/2460-86-0x0000000000400000-0x00000000006AC000-memory.dmp
memory/2460-83-0x0000000000400000-0x00000000006AC000-memory.dmp
memory/2460-57-0x0000000000400000-0x00000000006AC000-memory.dmp
memory/2460-80-0x0000000002800000-0x00000000028A2000-memory.dmp
memory/2460-76-0x0000000002800000-0x00000000028A2000-memory.dmp
memory/2460-62-0x0000000000400000-0x00000000006AC000-memory.dmp
memory/2460-65-0x0000000000400000-0x00000000006AC000-memory.dmp
memory/2460-66-0x0000000000400000-0x00000000006AC000-memory.dmp
memory/2460-69-0x0000000000400000-0x00000000006AC000-memory.dmp
memory/2460-72-0x0000000000400000-0x00000000006AC000-memory.dmp
memory/2560-46-0x0000000000400000-0x00000000006AC000-memory.dmp
memory/2560-50-0x0000000000400000-0x00000000006AC000-memory.dmp
memory/2560-47-0x0000000000400000-0x00000000006AC000-memory.dmp
memory/2560-45-0x0000000000400000-0x00000000006AC000-memory.dmp
memory/2684-55-0x0000000000400000-0x0000000000414000-memory.dmp
memory/2684-0-0x0000000000400000-0x0000000000414000-memory.dmp
memory/2684-2-0x0000000000400000-0x0000000000414000-memory.dmp
memory/3004-59-0x0000000003670000-0x000000000391C000-memory.dmp
memory/3004-58-0x0000000000240000-0x0000000000241000-memory.dmp
memory/3004-56-0x0000000000400000-0x00000000004BA000-memory.dmp
memory/3004-44-0x0000000003670000-0x000000000391C000-memory.dmp
memory/3004-9-0x0000000000240000-0x0000000000241000-memory.dmp