Analysis
- max time kernel
140s - max time network
127s - platform
windows7_x64 - resource
win7-20240729-en - resource tags
- submitted
08/10/2024, 19:52
General
- Target file.exe
- Size 3.8MB
- Sample241008-yldc3stdqf
- SHA256 b6fb07e46f25791031cf861958152e68132e68caa3a3465ae54be296cca7ca3f
Malware Config
Signatures
- Detect Socks5Systemz Payload 3 IoCs
- Socks5Systemz
Socks5Systemz is a botnet written in C++.
- Executes dropped EXE 2 IoCs
- Loads dropped DLL 5 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).
- System Location Discovery: System Language Discovery 1 TTPs 3 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Suspicious use of WriteProcessMemory 11 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\file.exe"C:\Users\Admin\AppData\Local\Temp\file.exe"1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\is-G7M5R.tmp\is-BALDC.tmp"C:\Users\Admin\AppData\Local\Temp\is-G7M5R.tmp\is-BALDC.tmp" /SL4 $40216 "C:\Users\Admin\AppData\Local\Temp\file.exe" 3705946 522242⤵
- Executes dropped EXE
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Raff Txt To Sub\txttosub32_64.exe"C:\Users\Admin\AppData\Local\Raff Txt To Sub\txttosub32_64.exe" -i3⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
-
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
txttosub32_64.exe
is-BALDC.tmp
_iscrypt.dll
_shfoldr.dll
memory/2324-90-0x0000000000400000-0x0000000000413000-memory.dmp
memory/2324-3-0x0000000000401000-0x000000000040A000-memory.dmp
memory/2324-0-0x0000000000400000-0x0000000000413000-memory.dmp
memory/2676-118-0x0000000000400000-0x000000000072D000-memory.dmp
memory/2676-108-0x0000000002EC0000-0x0000000002F62000-memory.dmp
memory/2676-86-0x0000000000400000-0x000000000072D000-memory.dmp
memory/2676-139-0x0000000000400000-0x000000000072D000-memory.dmp
memory/2676-136-0x0000000000400000-0x000000000072D000-memory.dmp
memory/2676-92-0x0000000000400000-0x000000000072D000-memory.dmp
memory/2676-95-0x0000000000400000-0x000000000072D000-memory.dmp
memory/2676-98-0x0000000000400000-0x000000000072D000-memory.dmp
memory/2676-101-0x0000000000400000-0x000000000072D000-memory.dmp
memory/2676-104-0x0000000000400000-0x000000000072D000-memory.dmp
memory/2676-107-0x0000000000400000-0x000000000072D000-memory.dmp
memory/2676-85-0x0000000000400000-0x000000000072D000-memory.dmp
memory/2676-114-0x0000000000400000-0x000000000072D000-memory.dmp
memory/2676-132-0x0000000002EC0000-0x0000000002F62000-memory.dmp
memory/2676-131-0x0000000002EC0000-0x0000000002F62000-memory.dmp
memory/2676-121-0x0000000000400000-0x000000000072D000-memory.dmp
memory/2676-124-0x0000000000400000-0x000000000072D000-memory.dmp
memory/2676-127-0x0000000000400000-0x000000000072D000-memory.dmp
memory/2676-130-0x0000000000400000-0x000000000072D000-memory.dmp
memory/2704-17-0x0000000000400000-0x00000000004B0000-memory.dmp
memory/2704-115-0x0000000004510000-0x000000000483D000-memory.dmp
memory/2704-83-0x0000000004510000-0x000000000483D000-memory.dmp
memory/2704-89-0x0000000000400000-0x00000000004B0000-memory.dmp