Analysis
- max time kernel
147s - max time network
151s - platform
windows10-2004_x64 - resource
win10v2004-20240508-en - resource tags
- submitted
14/06/2024, 01:01
General
- Target 035dcf9053398a90a31dddeeef1c21f728a82078573daaac0b65baabf96973cd.exe
- Size 4.8MB
- Sample240614-bc9ctssdrk
- SHA256 035dcf9053398a90a31dddeeef1c21f728a82078573daaac0b65baabf96973cd
Malware Config
Extracted
-
socks5systemz
-
bmvnuyn.com
Signatures
- Detect Socks5Systemz Payload 1 IoCs
- Socks5Systemz
Socks5Systemz is a botnet written in C++.
- Detects executables packed with VMProtect. 17 IoCs
- Executes dropped EXE 3 IoCs
- Loads dropped DLL 1 IoCs
- Unexpected DNS network traffic destination 3 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\035dcf9053398a90a31dddeeef1c21f728a82078573daaac0b65baabf96973cd.exe"C:\Users\Admin\AppData\Local\Temp\035dcf9053398a90a31dddeeef1c21f728a82078573daaac0b65baabf96973cd.exe"1⤵
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\is-8JS3C.tmp\035dcf9053398a90a31dddeeef1c21f728a82078573daaac0b65baabf96973cd.tmp"C:\Users\Admin\AppData\Local\Temp\is-8JS3C.tmp\035dcf9053398a90a31dddeeef1c21f728a82078573daaac0b65baabf96973cd.tmp" /SL5="$80090,4814186,54272,C:\Users\Admin\AppData\Local\Temp\035dcf9053398a90a31dddeeef1c21f728a82078573daaac0b65baabf96973cd.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Free Audio Converter\audioconverter.exe"C:\Users\Admin\AppData\Local\Free Audio Converter\audioconverter.exe" -i3⤵
- Executes dropped EXE
-
-
C:\Users\Admin\AppData\Local\Free Audio Converter\audioconverter.exe"C:\Users\Admin\AppData\Local\Free Audio Converter\audioconverter.exe" -s3⤵
- Executes dropped EXE
-
-
-
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 --field-trial-handle=4028,i,10373433614523925616,13586256558317053467,262144 --variations-seed-version --mojo-platform-channel-handle=4200 /prefetch:81⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
audioconverter.exe
_iscrypt.dll
035dcf9053398a90a31dddeeef1c21f728a82078573daaac0b65baabf96973cd.tmp
memory/2028-59-0x0000000000400000-0x00000000006EB000-memory.dmp
memory/2028-60-0x0000000000400000-0x00000000006EB000-memory.dmp
memory/2028-63-0x0000000000400000-0x00000000006EB000-memory.dmp
memory/2028-64-0x0000000000400000-0x00000000006EB000-memory.dmp
memory/2364-69-0x0000000000400000-0x00000000004BA000-memory.dmp
memory/2364-13-0x0000000000400000-0x00000000004BA000-memory.dmp
memory/3080-3-0x0000000000401000-0x000000000040B000-memory.dmp
memory/3080-0-0x0000000000400000-0x0000000000414000-memory.dmp
memory/3080-68-0x0000000000400000-0x0000000000414000-memory.dmp
memory/4672-73-0x0000000000400000-0x00000000006EB000-memory.dmp
memory/4672-87-0x0000000000400000-0x00000000006EB000-memory.dmp
memory/4672-66-0x0000000000400000-0x00000000006EB000-memory.dmp
memory/4672-76-0x0000000000400000-0x00000000006EB000-memory.dmp
memory/4672-79-0x0000000000400000-0x00000000006EB000-memory.dmp
memory/4672-82-0x0000000000400000-0x00000000006EB000-memory.dmp
memory/4672-85-0x00000000009B0000-0x0000000000A52000-memory.dmp
memory/4672-70-0x0000000000400000-0x00000000006EB000-memory.dmp
memory/4672-92-0x0000000000400000-0x00000000006EB000-memory.dmp
memory/4672-95-0x0000000000400000-0x00000000006EB000-memory.dmp
memory/4672-98-0x0000000000400000-0x00000000006EB000-memory.dmp
memory/4672-101-0x0000000000400000-0x00000000006EB000-memory.dmp
memory/4672-104-0x0000000000400000-0x00000000006EB000-memory.dmp
memory/4672-107-0x0000000000400000-0x00000000006EB000-memory.dmp
memory/4672-110-0x0000000000400000-0x00000000006EB000-memory.dmp
memory/4672-113-0x0000000000400000-0x00000000006EB000-memory.dmp