Analysis
- max time kernel
141s - max time network
127s - platform
windows11-21h2_x64 - resource
win11-20240214-en - resource tags
- submitted
31/03/2024, 05:05
General
- Target 85917d7642441b2dd154e505751f3320f7bffcd7bddc7cfcb28be79333ebeee1.exe
- Size 2.0MB
- Sample240331-frbgkaeb9v
- SHA256 85917d7642441b2dd154e505751f3320f7bffcd7bddc7cfcb28be79333ebeee1
Malware Config
Extracted
-
socks5systemz
-
http://ejgmnam.ua/search/?q=67e28dd83a58f22a160bab1e7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ce8889b5e4fa9281ae978a071ea771795af8e05c642db22f31dfe339426fa12a466c553adb719a9577e55b8603e983a608ffe19c6ee939b33
-
http://ejgmnam.ua/search/?q=67e28dd83a58f22a160bab1e7c27d78406abdd88be4b12eab517aa5c96bd86e891874896148ab2865b77f80ebad9c40f7cb63037ed2ab423a4654383ba915d911ec07bb106a0708727e40ea678c751bbe34efb0e2807e12571c17f3e83fe16c1ee9d9c3acb6e9e
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.
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Suspicious use of WriteProcessMemory 9 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\85917d7642441b2dd154e505751f3320f7bffcd7bddc7cfcb28be79333ebeee1.exe"C:\Users\Admin\AppData\Local\Temp\85917d7642441b2dd154e505751f3320f7bffcd7bddc7cfcb28be79333ebeee1.exe"1⤵
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\is-1R6MK.tmp\85917d7642441b2dd154e505751f3320f7bffcd7bddc7cfcb28be79333ebeee1.tmp"C:\Users\Admin\AppData\Local\Temp\is-1R6MK.tmp\85917d7642441b2dd154e505751f3320f7bffcd7bddc7cfcb28be79333ebeee1.tmp" /SL5="$60212,1728467,54272,C:\Users\Admin\AppData\Local\Temp\85917d7642441b2dd154e505751f3320f7bffcd7bddc7cfcb28be79333ebeee1.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Any Audio Record\anyaudiorecord.exe"C:\Users\Admin\AppData\Local\Any Audio Record\anyaudiorecord.exe" -i3⤵
- Executes dropped EXE
-
-
C:\Users\Admin\AppData\Local\Any Audio Record\anyaudiorecord.exe"C:\Users\Admin\AppData\Local\Any Audio Record\anyaudiorecord.exe" -s3⤵
- Executes dropped EXE
-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
anyaudiorecord.exe
85917d7642441b2dd154e505751f3320f7bffcd7bddc7cfcb28be79333ebeee1.tmp
_iscrypt.dll
memory/1412-49-0x0000000000400000-0x00000000004B8000-memory.dmp
memory/1412-51-0x00000000007A0000-0x00000000007A1000-memory.dmp
memory/1412-7-0x00000000007A0000-0x00000000007A1000-memory.dmp
memory/2728-38-0x0000000000400000-0x00000000005DC000-memory.dmp
memory/2728-39-0x0000000000400000-0x00000000005DC000-memory.dmp
memory/2728-43-0x0000000000400000-0x00000000005DC000-memory.dmp
memory/2728-42-0x0000000000400000-0x00000000005DC000-memory.dmp
memory/3872-52-0x0000000000400000-0x00000000005DC000-memory.dmp
memory/3872-70-0x00000000008D0000-0x0000000000972000-memory.dmp
memory/3872-100-0x0000000000400000-0x00000000005DC000-memory.dmp
memory/3872-46-0x0000000000400000-0x00000000005DC000-memory.dmp
memory/3872-50-0x0000000000400000-0x00000000005DC000-memory.dmp
memory/3872-97-0x0000000000400000-0x00000000005DC000-memory.dmp
memory/3872-93-0x00000000008D0000-0x0000000000972000-memory.dmp
memory/3872-55-0x0000000000400000-0x00000000005DC000-memory.dmp
memory/3872-58-0x0000000000400000-0x00000000005DC000-memory.dmp
memory/3872-61-0x0000000000400000-0x00000000005DC000-memory.dmp
memory/3872-64-0x0000000000400000-0x00000000005DC000-memory.dmp
memory/3872-65-0x00000000008D0000-0x0000000000972000-memory.dmp
memory/3872-69-0x0000000000400000-0x00000000005DC000-memory.dmp
memory/3872-47-0x0000000000400000-0x00000000005DC000-memory.dmp
memory/3872-75-0x0000000000400000-0x00000000005DC000-memory.dmp
memory/3872-78-0x0000000000400000-0x00000000005DC000-memory.dmp
memory/3872-79-0x00000000008D0000-0x0000000000972000-memory.dmp
memory/3872-82-0x0000000000400000-0x00000000005DC000-memory.dmp
memory/3872-85-0x0000000000400000-0x00000000005DC000-memory.dmp
memory/3872-88-0x0000000000400000-0x00000000005DC000-memory.dmp
memory/3872-91-0x0000000000400000-0x00000000005DC000-memory.dmp
memory/3872-92-0x00000000008D0000-0x0000000000972000-memory.dmp
memory/3900-0-0x0000000000400000-0x0000000000414000-memory.dmp
memory/3900-2-0x0000000000400000-0x0000000000414000-memory.dmp
memory/3900-48-0x0000000000400000-0x0000000000414000-memory.dmp