Analysis
- max time kernel
123s - max time network
128s - platform
windows10-2004_x64 - resource
win10v2004-20220310-en - submitted
21/03/2022, 09:00
Static task
static1
Behavioral task
behavioral1
Sample
4d94ac536d0cae874d48866d52c57d49.exe
Resource
win7-20220311-en
0 signatures
0 seconds
Behavioral task
behavioral2
Sample
4d94ac536d0cae874d48866d52c57d49.exe
Resource
win10v2004-20220310-en
0 signatures
0 seconds
General
- Target 4d94ac536d0cae874d48866d52c57d49.exe
- Size 149KB
- Sample220321-kyb4wsafh5
- SHA256 fd2a72060baf27b380eeae7fe7e4649425d81709c27fc61072e736201aa74b75
- MD5 4d94ac536d0cae874d48866d52c57d49
- SHA1 198b92d7d1963f43c9cd5c967c6ee5100c4f51b0
- SHA512 14d938de86e72a7a61fe1accce4dee418f489ba1c812d8e1aaa3172198d5acc31559da7ea9bbed2673fa75bc07f9e46be041a5ee0e36383e27716fbbe99d7bc4
- MD5 SHA1 SHA512
Score
10/10
Malware Config
Signatures
- VKeylogger
A keylogger first seen in Nov 2020.
- VKeylogger Payload 1 IoCs
resource yara_rule behavioral2/memory/684-134-0x0000000000AC0000-0x0000000000AE6000-memory.dmp family_vkeylogger - Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2403053463-4052593947-3703345493-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\rgfriw = "C:\\Users\\Admin\\AppData\\Local\\Temp\\4d94ac536d0cae874d48866d52c57d49.exe" explorer.exe Set value (str) \REGISTRY\USER\S-1-5-21-2403053463-4052593947-3703345493-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\hrtry = "C:\\Windows\\system32\\mshta.exe javascript:x=new%20ActiveXObject(\"wscript.shell\");v=x.RegRead(\"HKCU\\\\Software\\\\Microsoft\\\\SMSvcHost\\\\ComponentID\");eval(v);" explorer.exe - Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 332 set thread context of 684 332 4d94ac536d0cae874d48866d52c57d49.exe 83 - Suspicious behavior: MapViewOfSection 2 IoCs
pid Process 332 4d94ac536d0cae874d48866d52c57d49.exe 684 explorer.exe - Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 684 explorer.exe - Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 684 explorer.exe - Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 332 wrote to memory of 684 332 4d94ac536d0cae874d48866d52c57d49.exe 83 PID 332 wrote to memory of 684 332 4d94ac536d0cae874d48866d52c57d49.exe 83 PID 332 wrote to memory of 684 332 4d94ac536d0cae874d48866d52c57d49.exe 83
Processes
-
C:\Users\Admin\AppData\Local\Temp\4d94ac536d0cae874d48866d52c57d49.exe"C:\Users\Admin\AppData\Local\Temp\4d94ac536d0cae874d48866d52c57d49.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:332 -
C:\Windows\SysWOW64\explorer.exe"C:\Windows\SysWOW64\explorer.exe"2⤵
- Adds Run key to start application
- Suspicious behavior: MapViewOfSection
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
PID:684
-