Analysis
- max time kernel
293s - max time network
260s - platform
windows10-1703_x64 - resource
win10-20240404-en - resource tags
- submitted
17/06/2024, 05:02
General
- Target 279ff0e6fa69f420b92d291881d387d34d27c16186ef00c44bcaf4e38b13bd4e.exe
- Size 4.8MB
- Sample240617-fpclvazbpn
- SHA256 279ff0e6fa69f420b92d291881d387d34d27c16186ef00c44bcaf4e38b13bd4e
Malware Config
Extracted
-
socks5systemz
-
ezfpqrk.ua
-
http://ezfpqrk.ua/search/?q=67e28dd8645fa72f495daa1c7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4de8889b5e4fa9281ae978a771ea771795af8e05c645db22f31dfe339426fa11a366c350adb719a9577e55b8603e983a608ff717c0ef939b3d
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 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).
- Suspicious use of FindShellTrayWindow 1 IoCs
- Suspicious use of WriteProcessMemory 9 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\279ff0e6fa69f420b92d291881d387d34d27c16186ef00c44bcaf4e38b13bd4e.exe"C:\Users\Admin\AppData\Local\Temp\279ff0e6fa69f420b92d291881d387d34d27c16186ef00c44bcaf4e38b13bd4e.exe"1⤵
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\is-DI2KO.tmp\279ff0e6fa69f420b92d291881d387d34d27c16186ef00c44bcaf4e38b13bd4e.tmp"C:\Users\Admin\AppData\Local\Temp\is-DI2KO.tmp\279ff0e6fa69f420b92d291881d387d34d27c16186ef00c44bcaf4e38b13bd4e.tmp" /SL5="$1201E0,4764546,54272,C:\Users\Admin\AppData\Local\Temp\279ff0e6fa69f420b92d291881d387d34d27c16186ef00c44bcaf4e38b13bd4e.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\M4A to MP3 Free Converter\m4atomp3freeconverter.exe"C:\Users\Admin\AppData\Local\M4A to MP3 Free Converter\m4atomp3freeconverter.exe" -i3⤵
- Executes dropped EXE
-
-
C:\Users\Admin\AppData\Local\M4A to MP3 Free Converter\m4atomp3freeconverter.exe"C:\Users\Admin\AppData\Local\M4A to MP3 Free Converter\m4atomp3freeconverter.exe" -s3⤵
- Executes dropped EXE
-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
m4atomp3freeconverter.exe
279ff0e6fa69f420b92d291881d387d34d27c16186ef00c44bcaf4e38b13bd4e.tmp
_iscrypt.dll
memory/2236-68-0x0000000000400000-0x00000000004BA000-memory.dmp
memory/2236-10-0x0000000000400000-0x00000000004BA000-memory.dmp
memory/4272-100-0x0000000000400000-0x00000000006ED000-memory.dmp
memory/4272-91-0x0000000000400000-0x00000000006ED000-memory.dmp
memory/4272-130-0x0000000000400000-0x00000000006ED000-memory.dmp
memory/4272-125-0x0000000000400000-0x00000000006ED000-memory.dmp
memory/4272-122-0x0000000000400000-0x00000000006ED000-memory.dmp
memory/4272-119-0x0000000000400000-0x00000000006ED000-memory.dmp
memory/4272-69-0x0000000000400000-0x00000000006ED000-memory.dmp
memory/4272-72-0x0000000000400000-0x00000000006ED000-memory.dmp
memory/4272-75-0x0000000000400000-0x00000000006ED000-memory.dmp
memory/4272-78-0x0000000000400000-0x00000000006ED000-memory.dmp
memory/4272-81-0x0000000000400000-0x00000000006ED000-memory.dmp
memory/4272-84-0x0000000000A70000-0x0000000000B12000-memory.dmp
memory/4272-86-0x0000000000400000-0x00000000006ED000-memory.dmp
memory/4272-116-0x0000000000400000-0x00000000006ED000-memory.dmp
memory/4272-94-0x0000000000400000-0x00000000006ED000-memory.dmp
memory/4272-97-0x0000000000400000-0x00000000006ED000-memory.dmp
memory/4272-113-0x0000000000400000-0x00000000006ED000-memory.dmp
memory/4272-103-0x0000000000400000-0x00000000006ED000-memory.dmp
memory/4272-106-0x0000000000400000-0x00000000006ED000-memory.dmp
memory/4272-110-0x0000000000400000-0x00000000006ED000-memory.dmp
memory/4632-59-0x0000000000400000-0x00000000006ED000-memory.dmp
memory/4632-64-0x0000000000400000-0x00000000006ED000-memory.dmp
memory/4632-60-0x0000000000400000-0x00000000006ED000-memory.dmp
memory/4764-0-0x0000000000400000-0x0000000000414000-memory.dmp
memory/4764-2-0x0000000000401000-0x000000000040B000-memory.dmp
memory/4764-67-0x0000000000400000-0x0000000000414000-memory.dmp