Analysis
- max time kernel
148s - max time network
151s - platform
windows10-2004_x64 - resource
win10v2004-20240226-en - resource tags
- submitted
28/02/2024, 07:26
General
- Target ae46a312e5cad0c1a0a25eddfd4c72ef.exe
- Size 2.6MB
- Sample240228-h9hppsec56
- SHA256 fc856e3614e21d2cd35550401ac7dbdea7da3be2f9c8d796320f804b06e25748
Malware Config
Extracted
-
socks5systemz
-
http://bwguyjo.com/search/?q=67e28dd86a5cf47e155fff1a7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4de8889b5e4fa9281ae978ff71ea771795af8e05c645db22f31dfe339426fa11af66c152adb719a9577e55b8603e983a608ef610c0ea97993a
-
http://bwguyjo.com/search/?q=67e28dd86a5cf47e155fff1a7c27d78406abdd88be4b12eab517aa5c96bd86ef90844d855a8bbc896c58e713bc90c91836b5281fc235a925ed3e5cd6bd974a95129070b616e96cc92be510b866db52b2e34aec4c2b14a82966836f23d7f210c7ef9c9b3bc86d9517
Signatures
- Detect Socks5Systemz Payload 5 IoCs
- Socks5Systemz
Socks5Systemz is a botnet written in C++.
- Executes dropped EXE 3 IoCs
- Loads dropped DLL 1 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 9 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\ae46a312e5cad0c1a0a25eddfd4c72ef.exe"C:\Users\Admin\AppData\Local\Temp\ae46a312e5cad0c1a0a25eddfd4c72ef.exe"1⤵
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\is-1B3AM.tmp\ae46a312e5cad0c1a0a25eddfd4c72ef.tmp"C:\Users\Admin\AppData\Local\Temp\is-1B3AM.tmp\ae46a312e5cad0c1a0a25eddfd4c72ef.tmp" /SL5="$601EA,2354731,56832,C:\Users\Admin\AppData\Local\Temp\ae46a312e5cad0c1a0a25eddfd4c72ef.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\CD Shrink\cdshrink.exe"C:\Users\Admin\AppData\Local\CD Shrink\cdshrink.exe" -i3⤵
- Executes dropped EXE
-
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C:\Users\Admin\AppData\Local\CD Shrink\cdshrink.exe"C:\Users\Admin\AppData\Local\CD Shrink\cdshrink.exe" -s3⤵
- Executes dropped EXE
-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
cdshrink.exe
ae46a312e5cad0c1a0a25eddfd4c72ef.tmp
_iscrypt.dll
memory/1124-2-0x0000000000400000-0x0000000000414000-memory.dmp
memory/1124-0-0x0000000000400000-0x0000000000414000-memory.dmp
memory/1124-45-0x0000000000400000-0x0000000000414000-memory.dmp
memory/3500-48-0x00000000007A0000-0x00000000007A1000-memory.dmp
memory/3500-7-0x00000000007A0000-0x00000000007A1000-memory.dmp
memory/3500-46-0x0000000000400000-0x00000000004BC000-memory.dmp
memory/4164-37-0x0000000000400000-0x0000000000711000-memory.dmp
memory/4164-38-0x0000000000400000-0x0000000000711000-memory.dmp
memory/4164-41-0x0000000000400000-0x0000000000711000-memory.dmp
memory/4776-55-0x0000000000400000-0x0000000000711000-memory.dmp
memory/4776-75-0x0000000000400000-0x0000000000711000-memory.dmp
memory/4776-51-0x0000000000400000-0x0000000000711000-memory.dmp
memory/4776-52-0x0000000000400000-0x0000000000711000-memory.dmp
memory/4776-44-0x0000000000400000-0x0000000000711000-memory.dmp
memory/4776-58-0x0000000000400000-0x0000000000711000-memory.dmp
memory/4776-61-0x0000000000400000-0x0000000000711000-memory.dmp
memory/4776-64-0x0000000000400000-0x0000000000711000-memory.dmp
memory/4776-66-0x00000000009B0000-0x0000000000A52000-memory.dmp
memory/4776-65-0x00000000009B0000-0x0000000000A52000-memory.dmp
memory/4776-72-0x0000000000400000-0x0000000000711000-memory.dmp
memory/4776-47-0x0000000000400000-0x0000000000711000-memory.dmp
memory/4776-76-0x00000000009B0000-0x0000000000A52000-memory.dmp
memory/4776-79-0x0000000000400000-0x0000000000711000-memory.dmp
memory/4776-82-0x0000000000400000-0x0000000000711000-memory.dmp
memory/4776-85-0x0000000000400000-0x0000000000711000-memory.dmp
memory/4776-88-0x0000000000400000-0x0000000000711000-memory.dmp
memory/4776-89-0x00000000009B0000-0x0000000000A52000-memory.dmp
memory/4776-90-0x00000000009B0000-0x0000000000A52000-memory.dmp
memory/4776-94-0x0000000000400000-0x0000000000711000-memory.dmp
memory/4776-97-0x0000000000400000-0x0000000000711000-memory.dmp