Analysis
- max time kernel
147s - max time network
137s - platform
windows7_x64 - resource
win7-20231215-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 5 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 15 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\a590680d02b6e463e6d4461b74b80517.exe"C:\Users\Admin\AppData\Local\Temp\a590680d02b6e463e6d4461b74b80517.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\is-9L783.tmp\a590680d02b6e463e6d4461b74b80517.tmp"C:\Users\Admin\AppData\Local\Temp\is-9L783.tmp\a590680d02b6e463e6d4461b74b80517.tmp" /SL5="$70126,6629515,54272,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
-
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C:\Users\Admin\AppData\Local\VB Objects Serialization\vbobjectsserialization.exe"C:\Users\Admin\AppData\Local\VB Objects Serialization\vbobjectsserialization.exe" -s3⤵
- Executes dropped EXE
-
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
vbobjectsserialization.exe
vbobjectsserialization.exe
_iscrypt.dll
_shfoldr.dll
a590680d02b6e463e6d4461b74b80517.tmp
vbobjectsserialization.exe
memory/2012-8-0x0000000000240000-0x0000000000241000-memory.dmp
memory/2012-63-0x0000000003900000-0x0000000003C71000-memory.dmp
memory/2012-77-0x0000000003900000-0x0000000003C71000-memory.dmp
memory/2012-76-0x0000000000240000-0x0000000000241000-memory.dmp
memory/2012-74-0x0000000000400000-0x00000000004BD000-memory.dmp
memory/2060-73-0x0000000000400000-0x0000000000414000-memory.dmp
memory/2060-1-0x0000000000400000-0x0000000000414000-memory.dmp
memory/2408-65-0x0000000000400000-0x0000000000771000-memory.dmp
memory/2408-66-0x0000000000400000-0x0000000000771000-memory.dmp
memory/2408-69-0x0000000000400000-0x0000000000771000-memory.dmp
memory/2408-64-0x0000000000400000-0x0000000000771000-memory.dmp
memory/2616-93-0x0000000000400000-0x0000000000771000-memory.dmp
memory/2616-100-0x0000000000400000-0x0000000000771000-memory.dmp
memory/2616-80-0x0000000000400000-0x0000000000771000-memory.dmp
memory/2616-83-0x0000000000400000-0x0000000000771000-memory.dmp
memory/2616-84-0x0000000000400000-0x0000000000771000-memory.dmp
memory/2616-87-0x0000000000400000-0x0000000000771000-memory.dmp
memory/2616-90-0x0000000000400000-0x0000000000771000-memory.dmp
memory/2616-72-0x0000000000400000-0x0000000000771000-memory.dmp
memory/2616-94-0x00000000026E0000-0x0000000002782000-memory.dmp
memory/2616-75-0x0000000000400000-0x0000000000771000-memory.dmp
memory/2616-103-0x0000000000400000-0x0000000000771000-memory.dmp
memory/2616-106-0x00000000026E0000-0x0000000002782000-memory.dmp
memory/2616-107-0x0000000000400000-0x0000000000771000-memory.dmp
memory/2616-110-0x0000000000400000-0x0000000000771000-memory.dmp
memory/2616-113-0x0000000000400000-0x0000000000771000-memory.dmp
memory/2616-116-0x0000000000400000-0x0000000000771000-memory.dmp
memory/2616-117-0x00000000026E0000-0x0000000002782000-memory.dmp
memory/2616-118-0x00000000026E0000-0x0000000002782000-memory.dmp
memory/2616-122-0x0000000000400000-0x0000000000771000-memory.dmp
memory/2616-125-0x0000000000400000-0x0000000000771000-memory.dmp