Analysis
- max time kernel
147s - max time network
150s - platform
windows11-21h2_x64 - resource
win11-20240221-en - resource tags
- submitted
23/03/2024, 04:48
General
- Target 1a74a1dc13d716c72f5404866fdaff2f942856c38a795b15b2a464ddb52f12c1.exe
- Size 2.0MB
- Sample240323-ffmepagc8y
- SHA256 1a74a1dc13d716c72f5404866fdaff2f942856c38a795b15b2a464ddb52f12c1
Malware Config
Extracted
-
socks5systemz
-
http://bpfjjdr.com/search/?q=67e28dd86b55fb7a410dae497c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa49e8889b5e4fa9281ae978a471ea771795af8e05c64bdb22f31dfe339426fa12a466c553adb719a9577e55b8603e983a608ffe10c6e6919a38
-
http://bpfjjdr.com/search/?q=67e28dd86b55fb7a410dae497c27d78406abdd88be4b12eab517aa5c96bd86e891804b875a8bbc896c58e713bc90c91c36b5281fc235a925ed3e07d6bd974a95129070b618e96cc92be510b866db51b9e34eed4c2b14a82966836f23d7f210c7ee949b3dc46b9615
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\1a74a1dc13d716c72f5404866fdaff2f942856c38a795b15b2a464ddb52f12c1.exe"C:\Users\Admin\AppData\Local\Temp\1a74a1dc13d716c72f5404866fdaff2f942856c38a795b15b2a464ddb52f12c1.exe"1⤵
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\is-NNBC6.tmp\1a74a1dc13d716c72f5404866fdaff2f942856c38a795b15b2a464ddb52f12c1.tmp"C:\Users\Admin\AppData\Local\Temp\is-NNBC6.tmp\1a74a1dc13d716c72f5404866fdaff2f942856c38a795b15b2a464ddb52f12c1.tmp" /SL5="$80062,1693346,54272,C:\Users\Admin\AppData\Local\Temp\1a74a1dc13d716c72f5404866fdaff2f942856c38a795b15b2a464ddb52f12c1.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
_iscrypt.dll
_isdecmp.dll
1a74a1dc13d716c72f5404866fdaff2f942856c38a795b15b2a464ddb52f12c1.tmp
memory/440-1-0x0000000000400000-0x0000000000414000-memory.dmp
memory/440-53-0x0000000000400000-0x0000000000414000-memory.dmp
memory/1576-80-0x0000000000400000-0x00000000005E6000-memory.dmp
memory/1576-69-0x0000000000400000-0x00000000005E6000-memory.dmp
memory/1576-105-0x0000000000400000-0x00000000005E6000-memory.dmp
memory/1576-102-0x0000000000400000-0x00000000005E6000-memory.dmp
memory/1576-52-0x0000000000400000-0x00000000005E6000-memory.dmp
memory/1576-98-0x0000000000950000-0x00000000009F2000-memory.dmp
memory/1576-97-0x0000000000950000-0x00000000009F2000-memory.dmp
memory/1576-55-0x0000000000400000-0x00000000005E6000-memory.dmp
memory/1576-96-0x0000000000400000-0x00000000005E6000-memory.dmp
memory/1576-57-0x0000000000400000-0x00000000005E6000-memory.dmp
memory/1576-60-0x0000000000400000-0x00000000005E6000-memory.dmp
memory/1576-63-0x0000000000400000-0x00000000005E6000-memory.dmp
memory/1576-66-0x0000000000400000-0x00000000005E6000-memory.dmp
memory/1576-93-0x0000000000400000-0x00000000005E6000-memory.dmp
memory/1576-70-0x0000000000950000-0x00000000009F2000-memory.dmp
memory/1576-74-0x0000000000400000-0x00000000005E6000-memory.dmp
memory/1576-75-0x0000000000950000-0x00000000009F2000-memory.dmp
memory/1576-90-0x0000000000400000-0x00000000005E6000-memory.dmp
memory/1576-83-0x0000000000400000-0x00000000005E6000-memory.dmp
memory/1576-84-0x0000000000950000-0x00000000009F2000-memory.dmp
memory/1576-87-0x0000000000400000-0x00000000005E6000-memory.dmp
memory/4924-48-0x0000000000400000-0x00000000005E6000-memory.dmp
memory/4924-45-0x0000000000400000-0x00000000005E6000-memory.dmp
memory/4924-44-0x0000000000400000-0x00000000005E6000-memory.dmp
memory/4924-49-0x0000000000400000-0x00000000005E6000-memory.dmp
memory/5080-7-0x0000000002340000-0x0000000002341000-memory.dmp
memory/5080-56-0x0000000002340000-0x0000000002341000-memory.dmp
memory/5080-54-0x0000000000400000-0x00000000004B8000-memory.dmp