Analysis
- max time kernel
143s - max time network
128s - platform
windows7_x64 - resource
win7-20240221-en - resource tags
- submitted
23/03/2024, 06:26
General
- Target 88afdda7723f2a3f4c5b36a5b3884514.exe
- Size 2.0MB
- Sample240323-g67c8aed42
- SHA256 5066ac412c958ec0cc10a69dd658dcd6d1ddfa484f2810aed7d9d69d075992a4
Malware Config
Extracted
-
socks5systemz
-
http://aqexxua.ru/search/?q=67e28dd83955a42b4006aa1b7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ee8889b5e4fa9281ae978f671ea771795af8e05c645db22f31df92d8b38e316a667d307eca743ec4c2b07b52966923a668ff814c2ed9c
-
http://aqexxua.ru/search/?q=67e28dd83955a42b4006aa1b7c27d78406abdd88be4b12eab517aa5c96bd86ef91804f815a8bbc896c58e713bc90c91b36b5281fc235a925ed3e55d6bd974a95129070b616e96cc92be20ea778c255bbe258b90d3b4eed3233d1626a8ff810c1ee929f39cf66
Signatures
- Detect Socks5Systemz Payload 5 IoCs
- Socks5Systemz
Socks5Systemz is a botnet written in C++.
- Executes dropped EXE 3 IoCs
- Loads dropped DLL 6 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 15 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\88afdda7723f2a3f4c5b36a5b3884514.exe"C:\Users\Admin\AppData\Local\Temp\88afdda7723f2a3f4c5b36a5b3884514.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\is-FVL1G.tmp\88afdda7723f2a3f4c5b36a5b3884514.tmp"C:\Users\Admin\AppData\Local\Temp\is-FVL1G.tmp\88afdda7723f2a3f4c5b36a5b3884514.tmp" /SL5="$5014E,1721518,54272,C:\Users\Admin\AppData\Local\Temp\88afdda7723f2a3f4c5b36a5b3884514.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
-
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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
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Downloads
markdownpad32.exe
88afdda7723f2a3f4c5b36a5b3884514.tmp
_iscrypt.dll
_isdecmp.dll
_shfoldr.dll
memory/1936-57-0x0000000000400000-0x0000000000414000-memory.dmp
memory/1936-1-0x0000000000400000-0x0000000000414000-memory.dmp
memory/2412-107-0x0000000000400000-0x00000000005E5000-memory.dmp
memory/2412-110-0x0000000000400000-0x00000000005E5000-memory.dmp
memory/2412-102-0x0000000002660000-0x0000000002702000-memory.dmp
memory/2412-101-0x0000000000400000-0x00000000005E5000-memory.dmp
memory/2412-98-0x0000000000400000-0x00000000005E5000-memory.dmp
memory/2412-54-0x0000000000400000-0x00000000005E5000-memory.dmp
memory/2412-56-0x0000000000400000-0x00000000005E5000-memory.dmp
memory/2412-89-0x0000000002660000-0x0000000002702000-memory.dmp
memory/2412-95-0x0000000000400000-0x00000000005E5000-memory.dmp
memory/2412-59-0x0000000000400000-0x00000000005E5000-memory.dmp
memory/2412-92-0x0000000000400000-0x00000000005E5000-memory.dmp
memory/2412-103-0x0000000002660000-0x0000000002702000-memory.dmp
memory/2412-64-0x0000000000400000-0x00000000005E5000-memory.dmp
memory/2412-65-0x0000000000400000-0x00000000005E5000-memory.dmp
memory/2412-68-0x0000000000400000-0x00000000005E5000-memory.dmp
memory/2412-71-0x0000000000400000-0x00000000005E5000-memory.dmp
memory/2412-74-0x0000000000400000-0x00000000005E5000-memory.dmp
memory/2412-77-0x0000000002660000-0x0000000002702000-memory.dmp
memory/2412-79-0x0000000000400000-0x00000000005E5000-memory.dmp
memory/2412-80-0x0000000002660000-0x0000000002702000-memory.dmp
memory/2412-85-0x0000000000400000-0x00000000005E5000-memory.dmp
memory/2412-88-0x0000000000400000-0x00000000005E5000-memory.dmp
memory/2504-61-0x00000000036C0000-0x00000000038A5000-memory.dmp
memory/2504-60-0x0000000000240000-0x0000000000241000-memory.dmp
memory/2504-58-0x0000000000400000-0x00000000004B8000-memory.dmp
memory/2504-45-0x00000000036C0000-0x00000000038A5000-memory.dmp
memory/2504-9-0x0000000000240000-0x0000000000241000-memory.dmp
memory/2592-52-0x0000000000400000-0x00000000005E5000-memory.dmp
memory/2592-51-0x0000000000400000-0x00000000005E5000-memory.dmp
memory/2592-48-0x0000000000400000-0x00000000005E5000-memory.dmp
memory/2592-47-0x0000000000400000-0x00000000005E5000-memory.dmp