Analysis
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max time kernel
149s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
09/05/2024, 01:23
Static task
static1
Behavioral task
behavioral1
Sample
39af1ce83c85e15f167cdef74aa9e23af9fb2942561b16491d23bc6044efe0b6.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
39af1ce83c85e15f167cdef74aa9e23af9fb2942561b16491d23bc6044efe0b6.exe
Resource
win10v2004-20240508-en
General
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Target
39af1ce83c85e15f167cdef74aa9e23af9fb2942561b16491d23bc6044efe0b6.exe
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Size
932KB
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MD5
6575dd828f15b08b5707631f49b0e3f1
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SHA1
87d299fddb300777c53c028172f98143f484fd6f
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SHA256
39af1ce83c85e15f167cdef74aa9e23af9fb2942561b16491d23bc6044efe0b6
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SHA512
24afe357044d708731a08e21c636e819b1911a80c623e24cd0ef88a824523b10a7df90e7abf3a3efe4fb1e9dd49ffb393ec19208ca77cdf2ee558622a0158902
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SSDEEP
12288:MOQNMIt3+hioijxOcaGW/v7E+EfvnJUC2+6zI4cHkYaG6U5SqFS4609bCFrZd:LWMIMhiop+4wTfvT2dMINbU5zFQmUz
Malware Config
Signatures
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Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003) 3 IoCs
resource yara_rule behavioral2/memory/2044-3-0x0000000000400000-0x00000000004EE000-memory.dmp INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM behavioral2/memory/2044-4-0x0000000000400000-0x00000000004EE000-memory.dmp INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM behavioral2/memory/2044-7-0x0000000000400000-0x000000000046F000-memory.dmp INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM -
Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs
Bootkits write to the MBR to gain persistence at a level below the operating system.
description ioc Process File opened for modification \??\PHYSICALDRIVE0 39af1ce83c85e15f167cdef74aa9e23af9fb2942561b16491d23bc6044efe0b6.exe -
Program crash 1 IoCs
pid pid_target Process procid_target 2040 2044 WerFault.exe 79
Processes
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C:\Users\Admin\AppData\Local\Temp\39af1ce83c85e15f167cdef74aa9e23af9fb2942561b16491d23bc6044efe0b6.exe"C:\Users\Admin\AppData\Local\Temp\39af1ce83c85e15f167cdef74aa9e23af9fb2942561b16491d23bc6044efe0b6.exe"1⤵
- Writes to the Master Boot Record (MBR)
PID:2044 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2044 -s 7002⤵
- Program crash
PID:2040
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2044 -ip 20441⤵PID:4448