Analysis
- max time kernel
146s - max time network
156s - platform
windows10-2004_x64 - resource
win10v2004-20240319-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://aqekrjg.ru/search/?q=67e28dd86a08a32d155da44d7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa49e8889b5e4fa9281ae978f471ea771795af8e05c645db22f31dfe339426fa11af66c152adb719a9577e55b8603e983a608ffd17c2eb979e3e
Signatures
- Detect Socks5Systemz Payload 2 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\a83fa5bb02751dbfa327f9ab06dca6df.exe"C:\Users\Admin\AppData\Local\Temp\a83fa5bb02751dbfa327f9ab06dca6df.exe"1⤵
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\is-EP5G8.tmp\a83fa5bb02751dbfa327f9ab06dca6df.tmp"C:\Users\Admin\AppData\Local\Temp\is-EP5G8.tmp\a83fa5bb02751dbfa327f9ab06dca6df.tmp" /SL5="$C005C,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
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C:\Users\Admin\AppData\Local\Sound Volume\soundvolume.exe"C:\Users\Admin\AppData\Local\Sound Volume\soundvolume.exe" -i3⤵
- Executes dropped EXE
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C:\Users\Admin\AppData\Local\Sound Volume\soundvolume.exe"C:\Users\Admin\AppData\Local\Sound Volume\soundvolume.exe" -s3⤵
- Executes dropped EXE
-
-
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C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=3992 --field-trial-handle=2228,i,17475224967547320003,13667387715861799238,262144 --variations-seed-version /prefetch:81⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
soundvolume.exe
a83fa5bb02751dbfa327f9ab06dca6df.tmp
_iscrypt.dll
memory/388-38-0x0000000000400000-0x00000000006DD000-memory.dmp
memory/388-39-0x0000000000400000-0x00000000006DD000-memory.dmp
memory/388-42-0x0000000000400000-0x00000000006DD000-memory.dmp
memory/388-43-0x0000000000400000-0x00000000006DD000-memory.dmp
memory/3196-0-0x0000000000400000-0x0000000000414000-memory.dmp
memory/3196-47-0x0000000000400000-0x0000000000414000-memory.dmp
memory/3488-50-0x0000000000660000-0x0000000000661000-memory.dmp
memory/3488-6-0x0000000000660000-0x0000000000661000-memory.dmp
memory/3488-48-0x0000000000400000-0x00000000004BA000-memory.dmp
memory/4652-53-0x0000000000400000-0x00000000006DD000-memory.dmp
memory/4652-73-0x0000000000400000-0x00000000006DD000-memory.dmp
memory/4652-46-0x0000000000400000-0x00000000006DD000-memory.dmp
memory/4652-54-0x0000000000400000-0x00000000006DD000-memory.dmp
memory/4652-57-0x0000000000400000-0x00000000006DD000-memory.dmp
memory/4652-60-0x0000000000400000-0x00000000006DD000-memory.dmp
memory/4652-63-0x0000000000400000-0x00000000006DD000-memory.dmp
memory/4652-66-0x0000000000400000-0x00000000006DD000-memory.dmp
memory/4652-67-0x0000000000A80000-0x0000000000B22000-memory.dmp
memory/4652-49-0x0000000000400000-0x00000000006DD000-memory.dmp
memory/4652-76-0x0000000000400000-0x00000000006DD000-memory.dmp
memory/4652-77-0x0000000000A80000-0x0000000000B22000-memory.dmp
memory/4652-80-0x0000000000400000-0x00000000006DD000-memory.dmp
memory/4652-83-0x0000000000400000-0x00000000006DD000-memory.dmp
memory/4652-86-0x0000000000400000-0x00000000006DD000-memory.dmp
memory/4652-89-0x0000000000400000-0x00000000006DD000-memory.dmp
memory/4652-93-0x0000000000400000-0x00000000006DD000-memory.dmp
memory/4652-96-0x0000000000400000-0x00000000006DD000-memory.dmp