Analysis
- max time kernel
144s - max time network
145s - platform
windows10-2004_x64 - resource
win10v2004-20240226-en - resource tags
- submitted
26/02/2024, 18:16
General
- Target 7a79ad80d764e138edba8980133ae051.exe
- Size 2.7MB
- Sample240226-wwe9badb8x
- SHA256 6e2bf04259b9dd4576e9fafc15c3b239b28d89de43fccb650131e9ab717c761d
Malware Config
Extracted
-
socks5systemz
-
http://dinvahz.info/search/?q=67e28dd8655aa729110daa1b7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ce8889b5e4fa9281ae978a771ea771795af8e05c645db22f31dfe339426fa11af66c152adb719a9577e55b8603e983a608ef718c7ee91993e
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.
- Suspicious behavior: EnumeratesProcesses 2 IoCs
- Suspicious use of FindShellTrayWindow 1 IoCs
- Suspicious use of WriteProcessMemory 9 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\7a79ad80d764e138edba8980133ae051.exe"C:\Users\Admin\AppData\Local\Temp\7a79ad80d764e138edba8980133ae051.exe"1⤵
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\is-HA8HB.tmp\7a79ad80d764e138edba8980133ae051.tmp"C:\Users\Admin\AppData\Local\Temp\is-HA8HB.tmp\7a79ad80d764e138edba8980133ae051.tmp" /SL5="$7011C,2587543,54272,C:\Users\Admin\AppData\Local\Temp\7a79ad80d764e138edba8980133ae051.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Media Builder\mmediabuilder.exe"C:\Users\Admin\AppData\Local\Media Builder\mmediabuilder.exe" -i3⤵
- Executes dropped EXE
-
-
C:\Users\Admin\AppData\Local\Media Builder\mmediabuilder.exe"C:\Users\Admin\AppData\Local\Media Builder\mmediabuilder.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=5728 --field-trial-handle=2972,i,4036376905309803364,5412922217215781933,262144 --variations-seed-version /prefetch:81⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
mmediabuilder.exe
mmediabuilder.exe
7a79ad80d764e138edba8980133ae051.tmp
_iscrypt.dll
memory/1844-7-0x00000000006A0000-0x00000000006A1000-memory.dmp
memory/1844-57-0x00000000006A0000-0x00000000006A1000-memory.dmp
memory/1844-55-0x0000000000400000-0x00000000004BC000-memory.dmp
memory/1960-0-0x0000000000400000-0x0000000000414000-memory.dmp
memory/1960-2-0x0000000000400000-0x0000000000414000-memory.dmp
memory/1960-54-0x0000000000400000-0x0000000000414000-memory.dmp
memory/2884-45-0x0000000000400000-0x0000000000751000-memory.dmp
memory/2884-50-0x0000000000400000-0x0000000000751000-memory.dmp
memory/2884-47-0x0000000000400000-0x0000000000751000-memory.dmp
memory/2884-46-0x0000000000400000-0x0000000000751000-memory.dmp
memory/3528-60-0x0000000000400000-0x0000000000751000-memory.dmp
memory/3528-75-0x0000000000900000-0x00000000009A2000-memory.dmp
memory/3528-53-0x0000000000400000-0x0000000000751000-memory.dmp
memory/3528-61-0x0000000000400000-0x0000000000751000-memory.dmp
memory/3528-64-0x0000000000400000-0x0000000000751000-memory.dmp
memory/3528-67-0x0000000000400000-0x0000000000751000-memory.dmp
memory/3528-70-0x0000000000400000-0x0000000000751000-memory.dmp
memory/3528-74-0x0000000000900000-0x00000000009A2000-memory.dmp
memory/3528-73-0x0000000000400000-0x0000000000751000-memory.dmp
memory/3528-56-0x0000000000400000-0x0000000000751000-memory.dmp
memory/3528-81-0x0000000000400000-0x0000000000751000-memory.dmp
memory/3528-84-0x0000000000400000-0x0000000000751000-memory.dmp
memory/3528-85-0x0000000000900000-0x00000000009A2000-memory.dmp
memory/3528-88-0x0000000000400000-0x0000000000751000-memory.dmp
memory/3528-91-0x0000000000400000-0x0000000000751000-memory.dmp
memory/3528-94-0x0000000000400000-0x0000000000751000-memory.dmp
memory/3528-97-0x0000000000400000-0x0000000000751000-memory.dmp
memory/3528-101-0x0000000000400000-0x0000000000751000-memory.dmp
memory/3528-104-0x0000000000400000-0x0000000000751000-memory.dmp