Analysis
- max time kernel
150s - max time network
146s - platform
windows7_x64 - resource
win7-20240221-en - resource tags
- submitted
09/04/2024, 00:56
General
- Target a83fa5bb02751dbfa327f9ab06dca6df.exe
- Size 4.0MB
- Sample240409-bacwvahb44
- SHA256 6b251b357a4ff2ff8fc367c082918f11872bcfc6ba6b69059c0d876de53337a7
Malware Config
Extracted
-
socks5systemz
-
http://bpblsid.com/search/?q=67e28dd83958f721120bac1a7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4fe8889b5e4fa9281ae978f471ea771795af8e05c645db22f31df92d8b38e316a667d307eca743ec4c2b07b52966923a6588fd15c2ec9d
-
http://bpblsid.com/search/?q=67e28dd83958f721120bac1a7c27d78406abdd88be4b12eab517aa5c96bd86e892844a805a8bbc896c58e713bc90c91a36b5281fc235a925ed3e57d6bd974a95129070b616e96cc92be20ea778c255bbe258b90d3b4eed3233d1626a8ff810c2e9979e39ce67
Signatures
- Detect Socks5Systemz Payload 5 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\a83fa5bb02751dbfa327f9ab06dca6df.exe"C:\Users\Admin\AppData\Local\Temp\a83fa5bb02751dbfa327f9ab06dca6df.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\is-6PFKH.tmp\a83fa5bb02751dbfa327f9ab06dca6df.tmp"C:\Users\Admin\AppData\Local\Temp\is-6PFKH.tmp\a83fa5bb02751dbfa327f9ab06dca6df.tmp" /SL5="$500BA,3847643,54272,C:\Users\Admin\AppData\Local\Temp\a83fa5bb02751dbfa327f9ab06dca6df.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Sound Volume\soundvolume.exe"C:\Users\Admin\AppData\Local\Sound Volume\soundvolume.exe" -i3⤵
- Executes dropped EXE
-
-
C:\Users\Admin\AppData\Local\Sound Volume\soundvolume.exe"C:\Users\Admin\AppData\Local\Sound Volume\soundvolume.exe" -s3⤵
- Executes dropped EXE
-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
soundvolume.exe
_iscrypt.dll
_shfoldr.dll
a83fa5bb02751dbfa327f9ab06dca6df.tmp
memory/852-42-0x0000000003510000-0x00000000037ED000-memory.dmp
memory/852-8-0x0000000000240000-0x0000000000241000-memory.dmp
memory/852-57-0x0000000000240000-0x0000000000241000-memory.dmp
memory/852-58-0x0000000003510000-0x00000000037ED000-memory.dmp
memory/852-55-0x0000000000400000-0x00000000004BA000-memory.dmp
memory/2020-0-0x0000000000400000-0x0000000000414000-memory.dmp
memory/2020-54-0x0000000000400000-0x0000000000414000-memory.dmp
memory/2544-44-0x0000000000400000-0x00000000006DD000-memory.dmp
memory/2544-45-0x0000000000400000-0x00000000006DD000-memory.dmp
memory/2544-46-0x0000000000400000-0x00000000006DD000-memory.dmp
memory/2544-49-0x0000000000400000-0x00000000006DD000-memory.dmp
memory/2724-61-0x0000000000400000-0x00000000006DD000-memory.dmp
memory/2724-82-0x0000000000400000-0x00000000006DD000-memory.dmp
memory/2724-53-0x0000000000400000-0x00000000006DD000-memory.dmp
memory/2724-51-0x0000000000400000-0x00000000006DD000-memory.dmp
memory/2724-64-0x0000000000400000-0x00000000006DD000-memory.dmp
memory/2724-65-0x0000000000400000-0x00000000006DD000-memory.dmp
memory/2724-68-0x0000000000400000-0x00000000006DD000-memory.dmp
memory/2724-71-0x0000000000400000-0x00000000006DD000-memory.dmp
memory/2724-74-0x0000000000400000-0x00000000006DD000-memory.dmp
memory/2724-76-0x00000000026D0000-0x0000000002772000-memory.dmp
memory/2724-75-0x00000000026D0000-0x0000000002772000-memory.dmp
memory/2724-56-0x0000000000400000-0x00000000006DD000-memory.dmp
memory/2724-85-0x0000000000400000-0x00000000006DD000-memory.dmp
memory/2724-88-0x00000000026D0000-0x0000000002772000-memory.dmp
memory/2724-89-0x0000000000400000-0x00000000006DD000-memory.dmp
memory/2724-92-0x0000000000400000-0x00000000006DD000-memory.dmp
memory/2724-95-0x0000000000400000-0x00000000006DD000-memory.dmp
memory/2724-98-0x0000000000400000-0x00000000006DD000-memory.dmp
memory/2724-99-0x00000000026D0000-0x0000000002772000-memory.dmp
memory/2724-100-0x00000000026D0000-0x0000000002772000-memory.dmp
memory/2724-104-0x0000000000400000-0x00000000006DD000-memory.dmp
memory/2724-107-0x0000000000400000-0x00000000006DD000-memory.dmp