Analysis
- max time kernel
149s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20240226-en - resource tags
- submitted
23/03/2024, 05:16
General
- Target a7cb46b956da911a14fe793e70b7e777.exe
- Size 2.0MB
- Sample240323-fx5btsge4y
- SHA256 b004cdd254054b6cc1f80edcedb17c05721e9f529d3c46d4d1f0ce02570b60a9
Malware Config
Extracted
-
socks5systemz
-
http://aqqxbbs.ru/search/?q=67e28dd86b5ea42a430af91a7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ce8889b5e4fa9281ae978a771ea771795af8e05c644db22f31dfe339426fa11af66c152adb719a9577e55b8603e983a608ffe10c7ee959833
Signatures
- Detect Socks5Systemz Payload 3 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\a7cb46b956da911a14fe793e70b7e777.exe"C:\Users\Admin\AppData\Local\Temp\a7cb46b956da911a14fe793e70b7e777.exe"1⤵
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\is-AFLF5.tmp\a7cb46b956da911a14fe793e70b7e777.tmp"C:\Users\Admin\AppData\Local\Temp\is-AFLF5.tmp\a7cb46b956da911a14fe793e70b7e777.tmp" /SL5="$A01CA,1737651,54272,C:\Users\Admin\AppData\Local\Temp\a7cb46b956da911a14fe793e70b7e777.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
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Downloads
markdownpad32.exe
markdownpad32.exe
_iscrypt.dll
_isdecmp.dll
a7cb46b956da911a14fe793e70b7e777.tmp
memory/880-57-0x0000000002340000-0x0000000002341000-memory.dmp
memory/880-7-0x0000000002340000-0x0000000002341000-memory.dmp
memory/880-55-0x0000000000400000-0x00000000004B8000-memory.dmp
memory/2524-74-0x0000000000400000-0x00000000005E4000-memory.dmp
memory/2524-84-0x0000000000400000-0x00000000005E4000-memory.dmp
memory/2524-104-0x0000000000400000-0x00000000005E4000-memory.dmp
memory/2524-101-0x0000000000400000-0x00000000005E4000-memory.dmp
memory/2524-52-0x0000000000400000-0x00000000005E4000-memory.dmp
memory/2524-53-0x0000000000400000-0x00000000005E4000-memory.dmp
memory/2524-97-0x0000000000400000-0x00000000005E4000-memory.dmp
memory/2524-94-0x0000000000400000-0x00000000005E4000-memory.dmp
memory/2524-56-0x0000000000400000-0x00000000005E4000-memory.dmp
memory/2524-91-0x0000000000400000-0x00000000005E4000-memory.dmp
memory/2524-60-0x0000000000400000-0x00000000005E4000-memory.dmp
memory/2524-61-0x0000000000400000-0x00000000005E4000-memory.dmp
memory/2524-64-0x0000000000400000-0x00000000005E4000-memory.dmp
memory/2524-67-0x0000000000400000-0x00000000005E4000-memory.dmp
memory/2524-70-0x0000000000400000-0x00000000005E4000-memory.dmp
memory/2524-73-0x0000000000870000-0x0000000000912000-memory.dmp
memory/2524-88-0x0000000000400000-0x00000000005E4000-memory.dmp
memory/2524-76-0x0000000000870000-0x0000000000912000-memory.dmp
memory/2524-81-0x0000000000400000-0x00000000005E4000-memory.dmp
memory/2524-85-0x0000000000870000-0x0000000000912000-memory.dmp
memory/4016-45-0x0000000000400000-0x00000000005E4000-memory.dmp
memory/4016-44-0x0000000000400000-0x00000000005E4000-memory.dmp
memory/4016-49-0x0000000000400000-0x00000000005E4000-memory.dmp
memory/4016-46-0x0000000000400000-0x00000000005E4000-memory.dmp
memory/4448-0-0x0000000000400000-0x0000000000414000-memory.dmp
memory/4448-2-0x0000000000400000-0x0000000000414000-memory.dmp
memory/4448-54-0x0000000000400000-0x0000000000414000-memory.dmp