Analysis
- max time kernel
141s - max time network
126s - platform
windows10-2004_x64 - resource
win10v2004-20240226-en - resource tags
- submitted
06/04/2024, 09:56
General
- Target a50b54bc7a00fa494fff6d15ff3617ea.exe
- Size 4.3MB
- Sample240406-lyck4agd26
- SHA256 934e794859a6e1d30d021f1af7b3a8b6ea99056bfc5e2cc1e9146b39bd07cabb
Malware Config
Extracted
-
socks5systemz
-
http://bnyurhf.com/search/?q=67e28dd86c09f220490efa1c7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ae8889b5e4fa9281ae978fe71ea771795af8e05c645db22f31dfe339426fa11af66c152adb719a9577e55b8603e983a608ffd12c9e891993a
-
http://bnyurhf.com/search/?q=67e28dd86c09f220490efa1c7c27d78406abdd88be4b12eab517aa5c96bd86ec94824d895a8bbc896c58e713bc90c91f36b5281fc235a925ed3e5dd6bd974a95129070b616e96cc92be510b866db52b2e34aec4c2b14a82966836f23d7f210c7ee979932ca6b9517
Signatures
- Detect Socks5Systemz Payload 5 IoCs
- Socks5Systemz
Socks5Systemz is a botnet written in C++.
- Executes dropped EXE 3 IoCs
- Loads dropped DLL 3 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\a50b54bc7a00fa494fff6d15ff3617ea.exe"C:\Users\Admin\AppData\Local\Temp\a50b54bc7a00fa494fff6d15ff3617ea.exe"1⤵
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\is-3LNPV.tmp\a50b54bc7a00fa494fff6d15ff3617ea.tmp"C:\Users\Admin\AppData\Local\Temp\is-3LNPV.tmp\a50b54bc7a00fa494fff6d15ff3617ea.tmp" /SL5="$401CA,4109893,54272,C:\Users\Admin\AppData\Local\Temp\a50b54bc7a00fa494fff6d15ff3617ea.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\MP3 Tag Free Edition\mp3tagfreeedition.exe"C:\Users\Admin\AppData\Local\MP3 Tag Free Edition\mp3tagfreeedition.exe" -i3⤵
- Executes dropped EXE
-
-
C:\Users\Admin\AppData\Local\MP3 Tag Free Edition\mp3tagfreeedition.exe"C:\Users\Admin\AppData\Local\MP3 Tag Free Edition\mp3tagfreeedition.exe" -s3⤵
- Executes dropped EXE
-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
mp3tagfreeedition.exe
_iscrypt.dll
_isdecmp.dll
a50b54bc7a00fa494fff6d15ff3617ea.tmp
memory/892-56-0x0000000000400000-0x00000000004BA000-memory.dmp
memory/892-58-0x00000000006A0000-0x00000000006A1000-memory.dmp
memory/892-7-0x00000000006A0000-0x00000000006A1000-memory.dmp
memory/4488-86-0x00000000009D0000-0x0000000000A72000-memory.dmp
memory/4488-73-0x00000000009D0000-0x0000000000A72000-memory.dmp
memory/4488-107-0x0000000000400000-0x0000000000634000-memory.dmp
memory/4488-104-0x0000000000400000-0x0000000000634000-memory.dmp
memory/4488-52-0x0000000000400000-0x0000000000634000-memory.dmp
memory/4488-54-0x0000000000400000-0x0000000000634000-memory.dmp
memory/4488-100-0x00000000009D0000-0x0000000000A72000-memory.dmp
memory/4488-99-0x00000000009D0000-0x0000000000A72000-memory.dmp
memory/4488-57-0x0000000000400000-0x0000000000634000-memory.dmp
memory/4488-98-0x0000000000400000-0x0000000000634000-memory.dmp
memory/4488-61-0x0000000000400000-0x0000000000634000-memory.dmp
memory/4488-62-0x0000000000400000-0x0000000000634000-memory.dmp
memory/4488-65-0x0000000000400000-0x0000000000634000-memory.dmp
memory/4488-68-0x0000000000400000-0x0000000000634000-memory.dmp
memory/4488-71-0x0000000000400000-0x0000000000634000-memory.dmp
memory/4488-95-0x0000000000400000-0x0000000000634000-memory.dmp
memory/4488-75-0x0000000000400000-0x0000000000634000-memory.dmp
memory/4488-77-0x00000000009D0000-0x0000000000A72000-memory.dmp
memory/4488-82-0x0000000000400000-0x0000000000634000-memory.dmp
memory/4488-85-0x0000000000400000-0x0000000000634000-memory.dmp
memory/4488-92-0x0000000000400000-0x0000000000634000-memory.dmp
memory/4488-89-0x0000000000400000-0x0000000000634000-memory.dmp
memory/4656-46-0x0000000000400000-0x0000000000634000-memory.dmp
memory/4656-45-0x0000000000400000-0x0000000000634000-memory.dmp
memory/4656-50-0x0000000000400000-0x0000000000634000-memory.dmp
memory/4656-49-0x0000000000400000-0x0000000000634000-memory.dmp
memory/4940-0-0x0000000000400000-0x0000000000414000-memory.dmp
memory/4940-2-0x0000000000400000-0x0000000000414000-memory.dmp
memory/4940-55-0x0000000000400000-0x0000000000414000-memory.dmp