Analysis
- max time kernel
147s - max time network
152s - platform
windows11-21h2_x64 - resource
win11-20240802-en - resource tags
- submitted
11/08/2024, 01:47
General
- Target 0e9dc9861a27c2605e3a5a3808b7a01fd24d150aae097093b4257d5feb37e5a8.exe
- Size 4.5MB
- Sample240811-b7yvkstdkc
- SHA256 0e9dc9861a27c2605e3a5a3808b7a01fd24d150aae097093b4257d5feb37e5a8
Malware Config
Signatures
- Detect Socks5Systemz Payload 6 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.
- System Location Discovery: System Language Discovery 1 TTPs 4 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Suspicious behavior: EnumeratesProcesses 2 IoCs
- Suspicious use of FindShellTrayWindow 1 IoCs
- Suspicious use of WriteProcessMemory 9 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\0e9dc9861a27c2605e3a5a3808b7a01fd24d150aae097093b4257d5feb37e5a8.exe"C:\Users\Admin\AppData\Local\Temp\0e9dc9861a27c2605e3a5a3808b7a01fd24d150aae097093b4257d5feb37e5a8.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\is-PRKBI.tmp\0e9dc9861a27c2605e3a5a3808b7a01fd24d150aae097093b4257d5feb37e5a8.tmp"C:\Users\Admin\AppData\Local\Temp\is-PRKBI.tmp\0e9dc9861a27c2605e3a5a3808b7a01fd24d150aae097093b4257d5feb37e5a8.tmp" /SL5="$50106,4414815,54272,C:\Users\Admin\AppData\Local\Temp\0e9dc9861a27c2605e3a5a3808b7a01fd24d150aae097093b4257d5feb37e5a8.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\AVI Codec\avicodec32_64.exe"C:\Users\Admin\AppData\Local\AVI Codec\avicodec32_64.exe" -i3⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
-
-
C:\Users\Admin\AppData\Local\AVI Codec\avicodec32_64.exe"C:\Users\Admin\AppData\Local\AVI Codec\avicodec32_64.exe" -s3⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
avicodec32_64.exe
_iscrypt.dll
_isdecmp.dll
0e9dc9861a27c2605e3a5a3808b7a01fd24d150aae097093b4257d5feb37e5a8.tmp
memory/2744-58-0x0000000000400000-0x0000000000815000-memory.dmp
memory/2744-59-0x0000000000400000-0x0000000000815000-memory.dmp
memory/2744-63-0x0000000000400000-0x0000000000815000-memory.dmp
memory/2744-61-0x0000000000400000-0x0000000000815000-memory.dmp
memory/4200-77-0x0000000000400000-0x0000000000815000-memory.dmp
memory/4200-85-0x0000000000C50000-0x0000000000CF2000-memory.dmp
memory/4200-122-0x0000000000400000-0x0000000000815000-memory.dmp
memory/4200-66-0x0000000000400000-0x0000000000815000-memory.dmp
memory/4200-67-0x0000000000400000-0x0000000000815000-memory.dmp
memory/4200-119-0x0000000000C50000-0x0000000000CF2000-memory.dmp
memory/4200-117-0x0000000000C50000-0x0000000000CF2000-memory.dmp
memory/4200-70-0x0000000000400000-0x0000000000815000-memory.dmp
memory/4200-73-0x0000000000400000-0x0000000000815000-memory.dmp
memory/4200-74-0x0000000000400000-0x0000000000815000-memory.dmp
memory/4200-116-0x0000000000C50000-0x0000000000CF2000-memory.dmp
memory/4200-80-0x0000000000400000-0x0000000000815000-memory.dmp
memory/4200-83-0x0000000000400000-0x0000000000815000-memory.dmp
memory/4200-115-0x0000000000400000-0x0000000000815000-memory.dmp
memory/4200-89-0x0000000000400000-0x0000000000815000-memory.dmp
memory/4200-94-0x0000000000400000-0x0000000000815000-memory.dmp
memory/4200-97-0x0000000000400000-0x0000000000815000-memory.dmp
memory/4200-100-0x0000000000400000-0x0000000000815000-memory.dmp
memory/4200-103-0x0000000000400000-0x0000000000815000-memory.dmp
memory/4200-106-0x0000000000400000-0x0000000000815000-memory.dmp
memory/4200-109-0x0000000000400000-0x0000000000815000-memory.dmp
memory/4200-111-0x0000000000C50000-0x0000000000CF2000-memory.dmp
memory/4200-110-0x0000000000C50000-0x0000000000CF2000-memory.dmp
memory/4948-13-0x0000000000400000-0x00000000004BD000-memory.dmp
memory/4948-69-0x0000000000400000-0x00000000004BD000-memory.dmp
memory/5888-1-0x0000000000400000-0x0000000000414000-memory.dmp
memory/5888-68-0x0000000000400000-0x0000000000414000-memory.dmp
memory/5888-2-0x0000000000401000-0x000000000040B000-memory.dmp