Analysis
- max time kernel
147s - max time network
141s - platform
windows7_x64 - resource
win7-20240221-en - resource tags
- submitted
07/03/2024, 19:56
General
- Target 8547adaf86a7ab657c3ae9f8fe0835fe.exe
- Size 1.8MB
- Sample240307-ynna3acd99
- SHA256 55d05fd5a19e6c9163da28136e8f06f9be8654ef3099af24faa8eeb5345068e9
Malware Config
Extracted
-
socks5systemz
-
http://bbqdlwu.com/search/?q=67e28dd83d5fa62d1358fa4d7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4de8889b5e4fa9281ae978ff71ea771795af8e05c645db22f31df92d8b38e316a667d307eca743ec4c2b07b52966923b6e86fb10c4ec9d
-
http://bbqdlwu.com/search/?q=67e28dd83d5fa62d1358fa4d7c27d78406abdd88be4b12eab517aa5c96bd86e994874e865a8bbc896c58e713bc90c91836b5281fc235a925ed3e5cd6bd974a95129070b616e96cc92be20ea778c255bbe258b90d3b4eed3233d1626a8ff811c9e7919b3fce67
Signatures
- Detect Socks5Systemz Payload 4 IoCs
- Socks5Systemz
Socks5Systemz is a botnet written in C++.
- Executes dropped EXE 3 IoCs
- Loads dropped DLL 5 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.
- Suspicious behavior: EnumeratesProcesses 2 IoCs
- Suspicious use of FindShellTrayWindow 1 IoCs
- Suspicious use of WriteProcessMemory 15 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\8547adaf86a7ab657c3ae9f8fe0835fe.exe"C:\Users\Admin\AppData\Local\Temp\8547adaf86a7ab657c3ae9f8fe0835fe.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\is-K0QOT.tmp\8547adaf86a7ab657c3ae9f8fe0835fe.tmp"C:\Users\Admin\AppData\Local\Temp\is-K0QOT.tmp\8547adaf86a7ab657c3ae9f8fe0835fe.tmp" /SL5="$70120,1513159,56832,C:\Users\Admin\AppData\Local\Temp\8547adaf86a7ab657c3ae9f8fe0835fe.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Cruise Mailer\cruisemailer.exe"C:\Users\Admin\AppData\Local\Cruise Mailer\cruisemailer.exe" -i3⤵
- Executes dropped EXE
-
-
C:\Users\Admin\AppData\Local\Cruise Mailer\cruisemailer.exe"C:\Users\Admin\AppData\Local\Cruise Mailer\cruisemailer.exe" -s3⤵
- Executes dropped EXE
-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
cruisemailer.exe
8547adaf86a7ab657c3ae9f8fe0835fe.tmp
cruisemailer.exe
_iscrypt.dll
_shfoldr.dll
8547adaf86a7ab657c3ae9f8fe0835fe.tmp
memory/1900-48-0x0000000000400000-0x00000000005A2000-memory.dmp
memory/1900-47-0x0000000000400000-0x00000000005A2000-memory.dmp
memory/1900-43-0x0000000000400000-0x00000000005A2000-memory.dmp
memory/1900-44-0x0000000000400000-0x00000000005A2000-memory.dmp
memory/2068-56-0x0000000000240000-0x0000000000241000-memory.dmp
memory/2068-54-0x0000000000400000-0x00000000004BC000-memory.dmp
memory/2068-8-0x0000000000240000-0x0000000000241000-memory.dmp
memory/2068-42-0x00000000031F0000-0x0000000003392000-memory.dmp
memory/2068-57-0x00000000031F0000-0x0000000003392000-memory.dmp
memory/2540-91-0x0000000000400000-0x00000000005A2000-memory.dmp
memory/2540-74-0x0000000000400000-0x00000000005A2000-memory.dmp
memory/2540-55-0x0000000000400000-0x00000000005A2000-memory.dmp
memory/2540-106-0x0000000000400000-0x00000000005A2000-memory.dmp
memory/2540-52-0x0000000000400000-0x00000000005A2000-memory.dmp
memory/2540-60-0x0000000000400000-0x00000000005A2000-memory.dmp
memory/2540-61-0x0000000000400000-0x00000000005A2000-memory.dmp
memory/2540-64-0x0000000000400000-0x00000000005A2000-memory.dmp
memory/2540-65-0x0000000000400000-0x00000000005A2000-memory.dmp
memory/2540-68-0x0000000000400000-0x00000000005A2000-memory.dmp
memory/2540-71-0x0000000000400000-0x00000000005A2000-memory.dmp
memory/2540-103-0x0000000000400000-0x00000000005A2000-memory.dmp
memory/2540-75-0x00000000021B0000-0x0000000002253000-memory.dmp
memory/2540-81-0x0000000000400000-0x00000000005A2000-memory.dmp
memory/2540-84-0x0000000000400000-0x00000000005A2000-memory.dmp
memory/2540-87-0x00000000021B0000-0x0000000002253000-memory.dmp
memory/2540-88-0x0000000000400000-0x00000000005A2000-memory.dmp
memory/2540-50-0x0000000000400000-0x00000000005A2000-memory.dmp
memory/2540-94-0x0000000000400000-0x00000000005A2000-memory.dmp
memory/2540-97-0x0000000000400000-0x00000000005A2000-memory.dmp
memory/2540-100-0x00000000021B0000-0x0000000002253000-memory.dmp
memory/2540-101-0x00000000021B0000-0x0000000002253000-memory.dmp
memory/2612-53-0x0000000000400000-0x0000000000414000-memory.dmp
memory/2612-1-0x0000000000400000-0x0000000000414000-memory.dmp