Analysis
- max time kernel
298s - max time network
300s - platform
windows10-1703_x64 - resource
win10-20240404-en - resource tags
- submitted
30/05/2024, 23:36
General
- Target e362af985a7297aa6eb102e810d7e32944fba39e4eb45236e02d0aa2243ec3ee.exe
- Size 4.7MB
- Sample240530-3lyfgafd68
- SHA256 e362af985a7297aa6eb102e810d7e32944fba39e4eb45236e02d0aa2243ec3ee
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
- Unexpected DNS network traffic destination 2 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\e362af985a7297aa6eb102e810d7e32944fba39e4eb45236e02d0aa2243ec3ee.exe"C:\Users\Admin\AppData\Local\Temp\e362af985a7297aa6eb102e810d7e32944fba39e4eb45236e02d0aa2243ec3ee.exe"1⤵
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\is-BN0NC.tmp\e362af985a7297aa6eb102e810d7e32944fba39e4eb45236e02d0aa2243ec3ee.tmp"C:\Users\Admin\AppData\Local\Temp\is-BN0NC.tmp\e362af985a7297aa6eb102e810d7e32944fba39e4eb45236e02d0aa2243ec3ee.tmp" /SL5="$60204,4716753,54272,C:\Users\Admin\AppData\Local\Temp\e362af985a7297aa6eb102e810d7e32944fba39e4eb45236e02d0aa2243ec3ee.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\FGaudioConverter\fgaudioconverter.exe"C:\Users\Admin\AppData\Local\FGaudioConverter\fgaudioconverter.exe" -i3⤵
- Executes dropped EXE
-
-
C:\Users\Admin\AppData\Local\FGaudioConverter\fgaudioconverter.exe"C:\Users\Admin\AppData\Local\FGaudioConverter\fgaudioconverter.exe" -s3⤵
- Executes dropped EXE
-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
fgaudioconverter.exe
e362af985a7297aa6eb102e810d7e32944fba39e4eb45236e02d0aa2243ec3ee.tmp
_iscrypt.dll
memory/1628-71-0x00007FFC7A540000-0x00007FFC7A71B000-memory.dmp
memory/1628-10-0x00007FFC7A540000-0x00007FFC7A71B000-memory.dmp
memory/1628-67-0x0000000000400000-0x00000000004BA000-memory.dmp
memory/3044-0-0x0000000000400000-0x0000000000414000-memory.dmp
memory/3044-66-0x0000000000400000-0x0000000000414000-memory.dmp
memory/3044-2-0x00007FFC7A540000-0x00007FFC7A71B000-memory.dmp
memory/4628-59-0x0000000000400000-0x00000000006D8000-memory.dmp
memory/4628-60-0x0000000000400000-0x00000000006D8000-memory.dmp
memory/4628-63-0x0000000000400000-0x00000000006D8000-memory.dmp
memory/4828-81-0x0000000000400000-0x00000000006D8000-memory.dmp
memory/4828-97-0x0000000000400000-0x00000000006D8000-memory.dmp
memory/4828-75-0x0000000000400000-0x00000000006D8000-memory.dmp
memory/4828-78-0x0000000000400000-0x00000000006D8000-memory.dmp
memory/4828-68-0x0000000000400000-0x00000000006D8000-memory.dmp
memory/4828-84-0x0000000000860000-0x0000000000902000-memory.dmp
memory/4828-86-0x0000000000400000-0x00000000006D8000-memory.dmp
memory/4828-91-0x0000000000400000-0x00000000006D8000-memory.dmp
memory/4828-94-0x0000000000400000-0x00000000006D8000-memory.dmp
memory/4828-72-0x0000000000400000-0x00000000006D8000-memory.dmp
memory/4828-100-0x0000000000400000-0x00000000006D8000-memory.dmp
memory/4828-103-0x0000000000400000-0x00000000006D8000-memory.dmp
memory/4828-106-0x0000000000400000-0x00000000006D8000-memory.dmp
memory/4828-109-0x0000000000400000-0x00000000006D8000-memory.dmp
memory/4828-112-0x0000000000400000-0x00000000006D8000-memory.dmp
memory/4828-115-0x0000000000400000-0x00000000006D8000-memory.dmp
memory/4828-118-0x0000000000400000-0x00000000006D8000-memory.dmp
memory/4828-122-0x0000000000400000-0x00000000006D8000-memory.dmp
memory/4828-125-0x0000000000400000-0x00000000006D8000-memory.dmp
memory/4828-128-0x0000000000400000-0x00000000006D8000-memory.dmp