Analysis
- max time kernel
145s - max time network
152s - platform
windows10-2004_x64 - resource
win10v2004-20240319-en - resource tags
- submitted
09/04/2024, 02:11
General
- Target a119ffe32421ba34713f5ef4a51b1feb.exe
- Size 4.0MB
- Sample240409-cl9wdseh61
- SHA256 2b1e80f669c3006adf86cd9314a06c46c5ce71ee8bb56d343a1a6a3b26250c64
Malware Config
Extracted
-
socks5systemz
-
http://csbdgez.net/search/?q=67e28dd86a08a32d155da44d7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa49e8889b5e4fa9281ae978f471ea771795af8e05c645db22f31dfe339426fa11af66c152adb719a9577e55b8603e983a608ffd17c2e792993c
Signatures
- Detect Socks5Systemz Payload 3 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\a119ffe32421ba34713f5ef4a51b1feb.exe"C:\Users\Admin\AppData\Local\Temp\a119ffe32421ba34713f5ef4a51b1feb.exe"1⤵
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\is-K4VVK.tmp\a119ffe32421ba34713f5ef4a51b1feb.tmp"C:\Users\Admin\AppData\Local\Temp\is-K4VVK.tmp\a119ffe32421ba34713f5ef4a51b1feb.tmp" /SL5="$801CA,3878659,54272,C:\Users\Admin\AppData\Local\Temp\a119ffe32421ba34713f5ef4a51b1feb.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
-
-
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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=4476 --field-trial-handle=2260,i,4762972005863767630,9297428255150568035,262144 --variations-seed-version /prefetch:81⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
soundvolume.exe
a119ffe32421ba34713f5ef4a51b1feb.tmp
_iscrypt.dll
memory/1356-50-0x0000000000400000-0x00000000004BA000-memory.dmp
memory/1356-52-0x00000000005D0000-0x00000000005D1000-memory.dmp
memory/1356-7-0x00000000005D0000-0x00000000005D1000-memory.dmp
memory/1720-76-0x0000000000400000-0x00000000006E0000-memory.dmp
memory/1720-79-0x0000000000400000-0x00000000006E0000-memory.dmp
memory/1720-99-0x0000000000400000-0x00000000006E0000-memory.dmp
memory/1720-96-0x0000000000400000-0x00000000006E0000-memory.dmp
memory/1720-46-0x0000000000400000-0x00000000006E0000-memory.dmp
memory/1720-48-0x0000000000400000-0x00000000006E0000-memory.dmp
memory/1720-92-0x0000000000400000-0x00000000006E0000-memory.dmp
memory/1720-89-0x0000000000400000-0x00000000006E0000-memory.dmp
memory/1720-51-0x0000000000400000-0x00000000006E0000-memory.dmp
memory/1720-86-0x0000000000400000-0x00000000006E0000-memory.dmp
memory/1720-55-0x0000000000400000-0x00000000006E0000-memory.dmp
memory/1720-56-0x0000000000400000-0x00000000006E0000-memory.dmp
memory/1720-59-0x0000000000400000-0x00000000006E0000-memory.dmp
memory/1720-62-0x0000000000400000-0x00000000006E0000-memory.dmp
memory/1720-65-0x0000000000400000-0x00000000006E0000-memory.dmp
memory/1720-68-0x0000000000400000-0x00000000006E0000-memory.dmp
memory/1720-69-0x00000000009D0000-0x0000000000A72000-memory.dmp
memory/1720-70-0x00000000009D0000-0x0000000000A72000-memory.dmp
memory/1720-83-0x0000000000400000-0x00000000006E0000-memory.dmp
memory/1720-80-0x00000000009D0000-0x0000000000A72000-memory.dmp
memory/4752-0-0x0000000000400000-0x0000000000414000-memory.dmp
memory/4752-2-0x0000000000400000-0x0000000000414000-memory.dmp
memory/4752-49-0x0000000000400000-0x0000000000414000-memory.dmp
memory/4876-40-0x0000000000400000-0x00000000006E0000-memory.dmp
memory/4876-39-0x0000000000400000-0x00000000006E0000-memory.dmp
memory/4876-44-0x0000000000400000-0x00000000006E0000-memory.dmp
memory/4876-43-0x0000000000400000-0x00000000006E0000-memory.dmp