Analysis
- max time kernel
141s - max time network
141s - platform
windows11-21h2_x64 - resource
win11-20240221-en - resource tags
- submitted
23/03/2024, 06:15
General
- Target 5066ac412c958ec0cc10a69dd658dcd6d1ddfa484f2810aed7d9d69d075992a4.exe
- Size 2.0MB
- Sample240323-gzzpssec99
- SHA256 5066ac412c958ec0cc10a69dd658dcd6d1ddfa484f2810aed7d9d69d075992a4
Malware Config
Extracted
-
socks5systemz
-
http://bgrvgvw.com/search/?q=67e28dd83d0ef479150af9197c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4be8889b5e4fa9281ae978a571ea771795af8e05c645db22f31dfe339426fa12a466c553adb719a9577e55b8603e983a608ffe10c7eb909d3d
-
http://bgrvgvw.com/search/?q=67e28dd83d0ef479150af9197c27d78406abdd88be4b12eab517aa5c96bd86e996834d96148ab2865b77f80ebad9c30f7cb63037ed2ab423a4604383ba915d911ec07bb606a0708727e40ea678c751bbe34efb0e2807e12571c17f3e83fe16c1ee949d3fc86890
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\5066ac412c958ec0cc10a69dd658dcd6d1ddfa484f2810aed7d9d69d075992a4.exe"C:\Users\Admin\AppData\Local\Temp\5066ac412c958ec0cc10a69dd658dcd6d1ddfa484f2810aed7d9d69d075992a4.exe"1⤵
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\is-4UO0P.tmp\5066ac412c958ec0cc10a69dd658dcd6d1ddfa484f2810aed7d9d69d075992a4.tmp"C:\Users\Admin\AppData\Local\Temp\is-4UO0P.tmp\5066ac412c958ec0cc10a69dd658dcd6d1ddfa484f2810aed7d9d69d075992a4.tmp" /SL5="$40232,1721518,54272,C:\Users\Admin\AppData\Local\Temp\5066ac412c958ec0cc10a69dd658dcd6d1ddfa484f2810aed7d9d69d075992a4.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
markdownpad32.exe
_iscrypt.dll
_isdecmp.dll
5066ac412c958ec0cc10a69dd658dcd6d1ddfa484f2810aed7d9d69d075992a4.tmp
memory/408-7-0x0000000002340000-0x0000000002341000-memory.dmp
memory/408-56-0x0000000002340000-0x0000000002341000-memory.dmp
memory/408-54-0x0000000000400000-0x00000000004B8000-memory.dmp
memory/732-53-0x0000000000400000-0x0000000000414000-memory.dmp
memory/732-2-0x0000000000400000-0x0000000000414000-memory.dmp
memory/732-0-0x0000000000400000-0x0000000000414000-memory.dmp
memory/1560-59-0x0000000000400000-0x00000000005E5000-memory.dmp
memory/1560-75-0x0000000000960000-0x0000000000A02000-memory.dmp
memory/1560-50-0x0000000000400000-0x00000000005E5000-memory.dmp
memory/1560-105-0x0000000000400000-0x00000000005E5000-memory.dmp
memory/1560-55-0x0000000000400000-0x00000000005E5000-memory.dmp
memory/1560-102-0x0000000000400000-0x00000000005E5000-memory.dmp
memory/1560-98-0x0000000000960000-0x0000000000A02000-memory.dmp
memory/1560-60-0x0000000000400000-0x00000000005E5000-memory.dmp
memory/1560-63-0x0000000000400000-0x00000000005E5000-memory.dmp
memory/1560-66-0x0000000000400000-0x00000000005E5000-memory.dmp
memory/1560-69-0x0000000000400000-0x00000000005E5000-memory.dmp
memory/1560-71-0x0000000000960000-0x0000000000A02000-memory.dmp
memory/1560-73-0x0000000000400000-0x00000000005E5000-memory.dmp
memory/1560-52-0x0000000000400000-0x00000000005E5000-memory.dmp
memory/1560-80-0x0000000000400000-0x00000000005E5000-memory.dmp
memory/1560-83-0x0000000000400000-0x00000000005E5000-memory.dmp
memory/1560-84-0x0000000000960000-0x0000000000A02000-memory.dmp
memory/1560-87-0x0000000000400000-0x00000000005E5000-memory.dmp
memory/1560-90-0x0000000000400000-0x00000000005E5000-memory.dmp
memory/1560-93-0x0000000000400000-0x00000000005E5000-memory.dmp
memory/1560-96-0x0000000000400000-0x00000000005E5000-memory.dmp
memory/1560-97-0x0000000000960000-0x0000000000A02000-memory.dmp
memory/1588-45-0x0000000000400000-0x00000000005E5000-memory.dmp
memory/1588-44-0x0000000000400000-0x00000000005E5000-memory.dmp
memory/1588-48-0x0000000000400000-0x00000000005E5000-memory.dmp