Analysis
- max time kernel
150s - max time network
156s - platform
windows10-2004_x64 - resource
win10v2004-20231215-en - resource tags
- submitted
03/02/2024, 16:19
General
- Target a590680d02b6e463e6d4461b74b80517.exe
- Size 6.6MB
- Sample240203-tsg8dsdch6
- SHA256 21ce025c4c170d1b07da9d70cfc7e647e7ecb13f501acf6c9aa34afc03c4827c
Malware Config
Signatures
- Detect Socks5Systemz Payload 4 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
-
C:\Users\Admin\AppData\Local\Temp\a590680d02b6e463e6d4461b74b80517.exe"C:\Users\Admin\AppData\Local\Temp\a590680d02b6e463e6d4461b74b80517.exe"1⤵
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\is-P9L54.tmp\a590680d02b6e463e6d4461b74b80517.tmp"C:\Users\Admin\AppData\Local\Temp\is-P9L54.tmp\a590680d02b6e463e6d4461b74b80517.tmp" /SL5="$701DC,6629515,54272,C:\Users\Admin\AppData\Local\Temp\a590680d02b6e463e6d4461b74b80517.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\VB Objects Serialization\vbobjectsserialization.exe"C:\Users\Admin\AppData\Local\VB Objects Serialization\vbobjectsserialization.exe" -i3⤵
- Executes dropped EXE
-
-
C:\Users\Admin\AppData\Local\VB Objects Serialization\vbobjectsserialization.exe"C:\Users\Admin\AppData\Local\VB Objects Serialization\vbobjectsserialization.exe" -s3⤵
- Executes dropped EXE
-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
_iscrypt.dll
a590680d02b6e463e6d4461b74b80517.tmp
vbobjectsserialization.exe
vbobjectsserialization.exe
vbobjectsserialization.exe
memory/2300-2-0x0000000000400000-0x0000000000414000-memory.dmp
memory/2300-0-0x0000000000400000-0x0000000000414000-memory.dmp
memory/2300-68-0x0000000000400000-0x0000000000414000-memory.dmp
memory/4032-98-0x00000000009F0000-0x0000000000A92000-memory.dmp
memory/4032-75-0x0000000000400000-0x0000000000771000-memory.dmp
memory/4032-119-0x0000000000400000-0x0000000000771000-memory.dmp
memory/4032-116-0x0000000000400000-0x0000000000771000-memory.dmp
memory/4032-66-0x0000000000400000-0x0000000000771000-memory.dmp
memory/4032-67-0x0000000000400000-0x0000000000771000-memory.dmp
memory/4032-112-0x00000000009F0000-0x0000000000A92000-memory.dmp
memory/4032-111-0x00000000009F0000-0x0000000000A92000-memory.dmp
memory/4032-70-0x0000000000400000-0x0000000000771000-memory.dmp
memory/4032-110-0x0000000000400000-0x0000000000771000-memory.dmp
memory/4032-74-0x0000000000400000-0x0000000000771000-memory.dmp
memory/4032-104-0x0000000000400000-0x0000000000771000-memory.dmp
memory/4032-78-0x0000000000400000-0x0000000000771000-memory.dmp
memory/4032-81-0x0000000000400000-0x0000000000771000-memory.dmp
memory/4032-84-0x0000000000400000-0x0000000000771000-memory.dmp
memory/4032-87-0x0000000000400000-0x0000000000771000-memory.dmp
memory/4032-88-0x00000000009F0000-0x0000000000A92000-memory.dmp
memory/4032-94-0x0000000000400000-0x0000000000771000-memory.dmp
memory/4032-97-0x0000000000400000-0x0000000000771000-memory.dmp
memory/4032-107-0x0000000000400000-0x0000000000771000-memory.dmp
memory/4032-101-0x0000000000400000-0x0000000000771000-memory.dmp
memory/4552-69-0x0000000000400000-0x00000000004BD000-memory.dmp
memory/4552-7-0x0000000002340000-0x0000000002341000-memory.dmp
memory/4552-71-0x0000000002340000-0x0000000002341000-memory.dmp
memory/4940-62-0x0000000000400000-0x0000000000771000-memory.dmp
memory/4940-59-0x0000000000400000-0x0000000000771000-memory.dmp
memory/4940-60-0x0000000000400000-0x0000000000771000-memory.dmp
memory/4940-63-0x0000000000400000-0x0000000000771000-memory.dmp