Analysis
- max time kernel
146s - max time network
149s - platform
windows11-21h2_x64 - resource
win11-20240221-en - resource tags
- submitted
23/03/2024, 06:32
General
- Target a1276f094eaccaad6b7be9a625dfe0c43814e39c1c922e7d0d41509a682a46c5.exe
- Size 2.0MB
- Sample240323-hax1caed55
- SHA256 a1276f094eaccaad6b7be9a625dfe0c43814e39c1c922e7d0d41509a682a46c5
Malware Config
Extracted
-
socks5systemz
-
http://aixbiji.ru/search/?q=67e28dd8645af52e420aad1d7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ee8889b5e4fa9281ae978a371ea771795af8e05c642db22f31dfe339426fa12a466c553adb719a9577e55b8603e983a608ffe10c7ea93983a
-
http://aixbiji.ru/search/?q=67e28dd8645af52e420aad1d7c27d78406abdd88be4b12eab517aa5c96bd86ef95824a815a8bbc896c58e713bc90c91b36b5281fc235a925ed3e00d6bd974a95129070b611e96cc92be510b866db51b9e34eed4c2b14a82966836f23d7f210c7ee949b3cc8699417
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 WriteProcessMemory 9 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\a1276f094eaccaad6b7be9a625dfe0c43814e39c1c922e7d0d41509a682a46c5.exe"C:\Users\Admin\AppData\Local\Temp\a1276f094eaccaad6b7be9a625dfe0c43814e39c1c922e7d0d41509a682a46c5.exe"1⤵
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\is-0BST0.tmp\a1276f094eaccaad6b7be9a625dfe0c43814e39c1c922e7d0d41509a682a46c5.tmp"C:\Users\Admin\AppData\Local\Temp\is-0BST0.tmp\a1276f094eaccaad6b7be9a625dfe0c43814e39c1c922e7d0d41509a682a46c5.tmp" /SL5="$40232,1718257,54272,C:\Users\Admin\AppData\Local\Temp\a1276f094eaccaad6b7be9a625dfe0c43814e39c1c922e7d0d41509a682a46c5.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\MarkDownPad\markdownpad32.exe"C:\Users\Admin\AppData\Local\MarkDownPad\markdownpad32.exe" -i3⤵
- Executes dropped EXE
-
-
C:\Users\Admin\AppData\Local\MarkDownPad\markdownpad32.exe"C:\Users\Admin\AppData\Local\MarkDownPad\markdownpad32.exe" -s3⤵
- Executes dropped EXE
-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
markdownpad32.exe
markdownpad32.exe
markdownpad32.exe
a1276f094eaccaad6b7be9a625dfe0c43814e39c1c922e7d0d41509a682a46c5.tmp
_iscrypt.dll
_isdecmp.dll
memory/2156-6-0x0000000000760000-0x0000000000761000-memory.dmp
memory/2156-55-0x0000000000760000-0x0000000000761000-memory.dmp
memory/2156-53-0x0000000000400000-0x00000000004B8000-memory.dmp
memory/3320-0-0x0000000000400000-0x0000000000414000-memory.dmp
memory/3320-52-0x0000000000400000-0x0000000000414000-memory.dmp
memory/4408-59-0x0000000000400000-0x00000000005E5000-memory.dmp
memory/4408-92-0x0000000000400000-0x00000000005E5000-memory.dmp
memory/4408-104-0x0000000000400000-0x00000000005E5000-memory.dmp
memory/4408-101-0x0000000000400000-0x00000000005E5000-memory.dmp
memory/4408-54-0x0000000000400000-0x00000000005E5000-memory.dmp
memory/4408-97-0x00000000008D0000-0x0000000000972000-memory.dmp
memory/4408-58-0x0000000000400000-0x00000000005E5000-memory.dmp
memory/4408-96-0x00000000008D0000-0x0000000000972000-memory.dmp
memory/4408-62-0x0000000000400000-0x00000000005E5000-memory.dmp
memory/4408-65-0x0000000000400000-0x00000000005E5000-memory.dmp
memory/4408-68-0x0000000000400000-0x00000000005E5000-memory.dmp
memory/4408-70-0x00000000008D0000-0x0000000000972000-memory.dmp
memory/4408-73-0x0000000000400000-0x00000000005E5000-memory.dmp
memory/4408-74-0x00000000008D0000-0x0000000000972000-memory.dmp
memory/4408-79-0x0000000000400000-0x00000000005E5000-memory.dmp
memory/4408-82-0x0000000000400000-0x00000000005E5000-memory.dmp
memory/4408-83-0x00000000008D0000-0x0000000000972000-memory.dmp
memory/4408-86-0x0000000000400000-0x00000000005E5000-memory.dmp
memory/4408-89-0x0000000000400000-0x00000000005E5000-memory.dmp
memory/4408-51-0x0000000000400000-0x00000000005E5000-memory.dmp
memory/4408-95-0x0000000000400000-0x00000000005E5000-memory.dmp
memory/4584-44-0x0000000000400000-0x00000000005E5000-memory.dmp
memory/4584-45-0x0000000000400000-0x00000000005E5000-memory.dmp
memory/4584-43-0x0000000000400000-0x00000000005E5000-memory.dmp
memory/4584-48-0x0000000000400000-0x00000000005E5000-memory.dmp