Analysis
- max time kernel
9s - max time network
96s - platform
windows10-2004_x64 - resource
win10v2004-20240226-en - resource tags
- submitted
13/06/2024, 19:56
General
- Target e4f160d5a875eaf0507cf823b7420504.exe
- Size 4.9MB
- Sample240613-ynnltsyfre
- SHA256 815c265c42f5b5739bd5452fc7f510475e2f5c6e4b0a7859729a9148e2e7a73f
Malware Config
Signatures
- Detect Socks5Systemz Payload 1 IoCs
- Socks5Systemz
Socks5Systemz is a botnet written in C++.
- Executes dropped EXE 3 IoCs
- Loads dropped DLL 1 IoCs
- 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
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C:\Users\Admin\AppData\Local\Temp\e4f160d5a875eaf0507cf823b7420504.exe"C:\Users\Admin\AppData\Local\Temp\e4f160d5a875eaf0507cf823b7420504.exe"1⤵
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\is-3GCIM.tmp\e4f160d5a875eaf0507cf823b7420504.tmp"C:\Users\Admin\AppData\Local\Temp\is-3GCIM.tmp\e4f160d5a875eaf0507cf823b7420504.tmp" /SL5="$80052,4896245,54272,C:\Users\Admin\AppData\Local\Temp\e4f160d5a875eaf0507cf823b7420504.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\Moon Voice Assist\moonvoiceassist32_64.exe"C:\Users\Admin\AppData\Local\Moon Voice Assist\moonvoiceassist32_64.exe" -i3⤵
- Executes dropped EXE
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C:\Users\Admin\AppData\Local\Moon Voice Assist\moonvoiceassist32_64.exe"C:\Users\Admin\AppData\Local\Moon Voice Assist\moonvoiceassist32_64.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=3716 --field-trial-handle=3088,i,14310325015283915034,7660943942870463106,262144 --variations-seed-version /prefetch:81⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
moonvoiceassist32_64.exe
moonvoiceassist32_64.exe
moonvoiceassist32_64.exe
e4f160d5a875eaf0507cf823b7420504.tmp
_iscrypt.dll
memory/1584-69-0x0000000000400000-0x00000000004BA000-memory.dmp
memory/1584-7-0x0000000000400000-0x00000000004BA000-memory.dmp
memory/1900-86-0x00000000009C0000-0x0000000000A62000-memory.dmp
memory/1900-96-0x0000000000400000-0x0000000000711000-memory.dmp
memory/1900-113-0x0000000000400000-0x0000000000711000-memory.dmp
memory/1900-109-0x00000000009C0000-0x0000000000A62000-memory.dmp
memory/1900-67-0x0000000000400000-0x0000000000711000-memory.dmp
memory/1900-110-0x00000000009C0000-0x0000000000A62000-memory.dmp
memory/1900-108-0x0000000000400000-0x0000000000711000-memory.dmp
memory/1900-105-0x0000000000400000-0x0000000000711000-memory.dmp
memory/1900-71-0x0000000000400000-0x0000000000711000-memory.dmp
memory/1900-74-0x0000000000400000-0x0000000000711000-memory.dmp
memory/1900-76-0x0000000000400000-0x0000000000711000-memory.dmp
memory/1900-79-0x0000000000400000-0x0000000000711000-memory.dmp
memory/1900-82-0x0000000000400000-0x0000000000711000-memory.dmp
memory/1900-85-0x0000000000400000-0x0000000000711000-memory.dmp
memory/1900-101-0x0000000000400000-0x0000000000711000-memory.dmp
memory/1900-93-0x0000000000400000-0x0000000000711000-memory.dmp
memory/1900-98-0x0000000000400000-0x0000000000711000-memory.dmp
memory/3696-2-0x0000000000401000-0x000000000040B000-memory.dmp
memory/3696-0-0x0000000000400000-0x0000000000414000-memory.dmp
memory/3696-68-0x0000000000400000-0x0000000000414000-memory.dmp
memory/3820-62-0x0000000000400000-0x0000000000711000-memory.dmp
memory/3820-64-0x0000000000400000-0x0000000000711000-memory.dmp
memory/3820-59-0x0000000000400000-0x0000000000711000-memory.dmp
memory/3820-60-0x0000000000400000-0x0000000000711000-memory.dmp