Malware Analysis Report

2024-10-24 17:03

Sample ID 221119-c537ysad34
Target 22b7f81d57e0b35a909e158d1342bff6afd00aeb19a51f5c486583d7047768d8
SHA256 22b7f81d57e0b35a909e158d1342bff6afd00aeb19a51f5c486583d7047768d8
Tags
runningrat persistence rat
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V6

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

22b7f81d57e0b35a909e158d1342bff6afd00aeb19a51f5c486583d7047768d8

Threat Level: Known bad

The file 22b7f81d57e0b35a909e158d1342bff6afd00aeb19a51f5c486583d7047768d8 was found to be: Known bad.

Malicious Activity Summary

runningrat persistence rat

Runningrat family

RunningRat payload

RunningRat

Executes dropped EXE

Sets DLL path for service in the registry

Loads dropped DLL

Drops file in System32 directory

Suspicious behavior: EnumeratesProcesses

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2022-11-19 02:40

Signatures

RunningRat payload

Description Indicator Process Target
N/A N/A N/A N/A

Runningrat family

runningrat

Analysis: behavioral2

Detonation Overview

Submitted

2022-11-19 02:40

Reported

2022-11-19 02:43

Platform

win10v2004-20220812-en

Max time kernel

148s

Max time network

151s

Command Line

"C:\Users\Admin\AppData\Local\Temp\22b7f81d57e0b35a909e158d1342bff6afd00aeb19a51f5c486583d7047768d8.exe"

Signatures

RunningRat

rat runningrat

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\AxInstSVS.exe N/A

Sets DLL path for service in the registry

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\AxInstSVS\Parameters\ServiceDll = "C:\\Users\\Admin\\AppData\\Local\\Temp\\240550828.dll" C:\Users\Admin\AppData\Local\Temp\22b7f81d57e0b35a909e158d1342bff6afd00aeb19a51f5c486583d7047768d8.exe N/A

Drops file in System32 directory

Description Indicator Process Target
File created C:\Windows\SysWOW64\AxInstSVS.exe C:\Windows\SysWOW64\svchost.exe N/A
File opened for modification C:\Windows\SysWOW64\AxInstSVS.exe C:\Windows\SysWOW64\svchost.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2252 wrote to memory of 1432 N/A C:\Windows\SysWOW64\svchost.exe C:\Windows\SysWOW64\AxInstSVS.exe
PID 2252 wrote to memory of 1432 N/A C:\Windows\SysWOW64\svchost.exe C:\Windows\SysWOW64\AxInstSVS.exe
PID 2252 wrote to memory of 1432 N/A C:\Windows\SysWOW64\svchost.exe C:\Windows\SysWOW64\AxInstSVS.exe

Processes

C:\Users\Admin\AppData\Local\Temp\22b7f81d57e0b35a909e158d1342bff6afd00aeb19a51f5c486583d7047768d8.exe

"C:\Users\Admin\AppData\Local\Temp\22b7f81d57e0b35a909e158d1342bff6afd00aeb19a51f5c486583d7047768d8.exe"

C:\Windows\SysWOW64\svchost.exe

C:\Windows\SysWOW64\svchost.exe -k "AxInstSVS"

C:\Windows\SysWOW64\svchost.exe

C:\Windows\SysWOW64\svchost.exe -k "AxInstSVS"

C:\Windows\SysWOW64\AxInstSVS.exe

C:\Windows\system32\AxInstSVS.exe "c:\users\admin\appdata\local\temp\240550828.dll",MainThread

Network

Country Destination Domain Proto
N/A 209.197.3.8:80 tcp
N/A 20.123.141.233:443 tcp
N/A 8.8.8.8:53 ip.cn udp
N/A 172.64.195.30:80 ip.cn tcp
N/A 220.163.108.210:9091 tcp
N/A 93.184.221.240:80 tcp
N/A 172.64.195.30:80 ip.cn tcp
N/A 172.64.195.30:80 ip.cn tcp
N/A 209.197.3.8:80 tcp
N/A 20.52.64.200:443 tcp
N/A 220.163.108.210:9091 tcp
N/A 172.64.195.30:80 ip.cn tcp
N/A 172.64.195.30:80 ip.cn tcp
N/A 220.163.108.210:9091 tcp
N/A 172.64.195.30:80 ip.cn tcp
N/A 8.8.8.8:53 ip.cn udp
N/A 172.64.195.30:80 ip.cn tcp
N/A 220.163.108.210:9091 tcp
N/A 8.8.8.8:53 164.2.77.40.in-addr.arpa udp
N/A 172.64.195.30:80 ip.cn tcp
N/A 172.64.195.30:80 ip.cn tcp
N/A 8.8.8.8:53 226.101.242.52.in-addr.arpa udp

Files

C:\Users\Admin\AppData\Local\Temp\240550828.dll

MD5 4f20adf798f7b1e0dce5870dbafea689
SHA1 49f7bd54b99daa7f0b9a9427c8ec0e93feb11b72
SHA256 51dc0a55e0f705d53e83dd1aa678f8db874bc02bc30d3f386858d1a3a147d8d2
SHA512 0169846feadf444353e5f90f614c6ba238b0a9475bfb96d53080252c73084096d6213ad9505307a7a5960cee9a96d4edf8ca017667fdc21953f10285240bd55a

\??\c:\users\admin\appdata\local\temp\240550828.dll

MD5 4f20adf798f7b1e0dce5870dbafea689
SHA1 49f7bd54b99daa7f0b9a9427c8ec0e93feb11b72
SHA256 51dc0a55e0f705d53e83dd1aa678f8db874bc02bc30d3f386858d1a3a147d8d2
SHA512 0169846feadf444353e5f90f614c6ba238b0a9475bfb96d53080252c73084096d6213ad9505307a7a5960cee9a96d4edf8ca017667fdc21953f10285240bd55a

C:\Users\Admin\AppData\Local\Temp\240550828.dll

MD5 4f20adf798f7b1e0dce5870dbafea689
SHA1 49f7bd54b99daa7f0b9a9427c8ec0e93feb11b72
SHA256 51dc0a55e0f705d53e83dd1aa678f8db874bc02bc30d3f386858d1a3a147d8d2
SHA512 0169846feadf444353e5f90f614c6ba238b0a9475bfb96d53080252c73084096d6213ad9505307a7a5960cee9a96d4edf8ca017667fdc21953f10285240bd55a

C:\Windows\SysWOW64\AxInstSVS.exe

MD5 889b99c52a60dd49227c5e485a016679
SHA1 8fa889e456aa646a4d0a4349977430ce5fa5e2d7
SHA256 6cbe0e1f046b13b29bfa26f8b368281d2dda7eb9b718651d5856f22cc3e02910
SHA512 08933106eaf338dd119c45cbf1f83e723aff77cc0f8d3fc84e36253b1eb31557a54211d1d5d1cb58958188e32064d451f6c66a24b3963cccd3de07299ab90641

memory/1432-135-0x0000000000000000-mapping.dmp

C:\Users\Admin\AppData\Local\Temp\240550828.dll

MD5 4f20adf798f7b1e0dce5870dbafea689
SHA1 49f7bd54b99daa7f0b9a9427c8ec0e93feb11b72
SHA256 51dc0a55e0f705d53e83dd1aa678f8db874bc02bc30d3f386858d1a3a147d8d2
SHA512 0169846feadf444353e5f90f614c6ba238b0a9475bfb96d53080252c73084096d6213ad9505307a7a5960cee9a96d4edf8ca017667fdc21953f10285240bd55a

C:\Windows\SysWOW64\AxInstSVS.exe

MD5 889b99c52a60dd49227c5e485a016679
SHA1 8fa889e456aa646a4d0a4349977430ce5fa5e2d7
SHA256 6cbe0e1f046b13b29bfa26f8b368281d2dda7eb9b718651d5856f22cc3e02910
SHA512 08933106eaf338dd119c45cbf1f83e723aff77cc0f8d3fc84e36253b1eb31557a54211d1d5d1cb58958188e32064d451f6c66a24b3963cccd3de07299ab90641

Analysis: behavioral1

Detonation Overview

Submitted

2022-11-19 02:40

Reported

2022-11-19 02:43

Platform

win7-20221111-en

Max time kernel

145s

Max time network

168s

Command Line

"C:\Users\Admin\AppData\Local\Temp\22b7f81d57e0b35a909e158d1342bff6afd00aeb19a51f5c486583d7047768d8.exe"

Signatures

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\AxInstSVS.exe N/A

Sets DLL path for service in the registry

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\AxInstSVS\Parameters\ServiceDll = "C:\\Users\\Admin\\AppData\\Local\\Temp\\7099371.dll" C:\Users\Admin\AppData\Local\Temp\22b7f81d57e0b35a909e158d1342bff6afd00aeb19a51f5c486583d7047768d8.exe N/A

Drops file in System32 directory

Description Indicator Process Target
File created C:\Windows\SysWOW64\AxInstSVS.exe C:\Windows\SysWOW64\svchost.exe N/A
File opened for modification C:\Windows\SysWOW64\AxInstSVS.exe C:\Windows\SysWOW64\svchost.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2008 wrote to memory of 1784 N/A C:\Windows\SysWOW64\svchost.exe C:\Windows\SysWOW64\AxInstSVS.exe
PID 2008 wrote to memory of 1784 N/A C:\Windows\SysWOW64\svchost.exe C:\Windows\SysWOW64\AxInstSVS.exe
PID 2008 wrote to memory of 1784 N/A C:\Windows\SysWOW64\svchost.exe C:\Windows\SysWOW64\AxInstSVS.exe
PID 2008 wrote to memory of 1784 N/A C:\Windows\SysWOW64\svchost.exe C:\Windows\SysWOW64\AxInstSVS.exe

Processes

C:\Users\Admin\AppData\Local\Temp\22b7f81d57e0b35a909e158d1342bff6afd00aeb19a51f5c486583d7047768d8.exe

"C:\Users\Admin\AppData\Local\Temp\22b7f81d57e0b35a909e158d1342bff6afd00aeb19a51f5c486583d7047768d8.exe"

C:\Windows\SysWOW64\svchost.exe

C:\Windows\SysWOW64\svchost.exe -k "AxInstSVS"

C:\Windows\SysWOW64\svchost.exe

C:\Windows\SysWOW64\svchost.exe -k "AxInstSVS"

C:\Windows\SysWOW64\AxInstSVS.exe

C:\Windows\system32\AxInstSVS.exe "c:\users\admin\appdata\local\temp\7099371.dll",MainThread

Network

Country Destination Domain Proto
N/A 8.8.8.8:53 ip.cn udp
N/A 172.64.194.30:80 ip.cn tcp
N/A 220.163.108.210:9091 tcp
N/A 172.64.194.30:80 ip.cn tcp
N/A 172.64.194.30:80 ip.cn tcp
N/A 220.163.108.210:9091 tcp
N/A 172.64.194.30:80 ip.cn tcp
N/A 172.64.194.30:80 ip.cn tcp
N/A 220.163.108.210:9091 tcp
N/A 172.64.194.30:80 ip.cn tcp
N/A 172.64.194.30:80 ip.cn tcp
N/A 220.163.108.210:9091 tcp
N/A 172.64.194.30:80 ip.cn tcp
N/A 172.64.194.30:80 ip.cn tcp
N/A 220.163.108.210:9091 tcp
N/A 172.64.194.30:80 ip.cn tcp
N/A 172.64.194.30:80 ip.cn tcp
N/A 220.163.108.210:9091 tcp
N/A 172.64.194.30:80 ip.cn tcp
N/A 172.64.194.30:80 ip.cn tcp
N/A 220.163.108.210:9091 tcp

Files

memory/1092-54-0x0000000075B11000-0x0000000075B13000-memory.dmp

\Users\Admin\AppData\Local\Temp\7099371.dll

MD5 4f20adf798f7b1e0dce5870dbafea689
SHA1 49f7bd54b99daa7f0b9a9427c8ec0e93feb11b72
SHA256 51dc0a55e0f705d53e83dd1aa678f8db874bc02bc30d3f386858d1a3a147d8d2
SHA512 0169846feadf444353e5f90f614c6ba238b0a9475bfb96d53080252c73084096d6213ad9505307a7a5960cee9a96d4edf8ca017667fdc21953f10285240bd55a

\??\c:\users\admin\appdata\local\temp\7099371.dll

MD5 4f20adf798f7b1e0dce5870dbafea689
SHA1 49f7bd54b99daa7f0b9a9427c8ec0e93feb11b72
SHA256 51dc0a55e0f705d53e83dd1aa678f8db874bc02bc30d3f386858d1a3a147d8d2
SHA512 0169846feadf444353e5f90f614c6ba238b0a9475bfb96d53080252c73084096d6213ad9505307a7a5960cee9a96d4edf8ca017667fdc21953f10285240bd55a

\Users\Admin\AppData\Local\Temp\7099371.dll

MD5 4f20adf798f7b1e0dce5870dbafea689
SHA1 49f7bd54b99daa7f0b9a9427c8ec0e93feb11b72
SHA256 51dc0a55e0f705d53e83dd1aa678f8db874bc02bc30d3f386858d1a3a147d8d2
SHA512 0169846feadf444353e5f90f614c6ba238b0a9475bfb96d53080252c73084096d6213ad9505307a7a5960cee9a96d4edf8ca017667fdc21953f10285240bd55a

\Windows\SysWOW64\AxInstSVS.exe

MD5 51138beea3e2c21ec44d0932c71762a8
SHA1 8939cf35447b22dd2c6e6f443446acc1bf986d58
SHA256 5ad3c37e6f2b9db3ee8b5aeedc474645de90c66e3d95f8620c48102f1eba4124
SHA512 794f30fe452117ff2a26dc9d7086aaf82b639c2632ac2e381a81f5239caaec7c96922ba5d2d90bfd8d74f0a6cd4f79fbda63e14c6b779e5cf6834c13e4e45e7d

C:\Windows\SysWOW64\AxInstSVS.exe

MD5 51138beea3e2c21ec44d0932c71762a8
SHA1 8939cf35447b22dd2c6e6f443446acc1bf986d58
SHA256 5ad3c37e6f2b9db3ee8b5aeedc474645de90c66e3d95f8620c48102f1eba4124
SHA512 794f30fe452117ff2a26dc9d7086aaf82b639c2632ac2e381a81f5239caaec7c96922ba5d2d90bfd8d74f0a6cd4f79fbda63e14c6b779e5cf6834c13e4e45e7d

memory/1784-59-0x0000000000000000-mapping.dmp

\Users\Admin\AppData\Local\Temp\7099371.dll

MD5 4f20adf798f7b1e0dce5870dbafea689
SHA1 49f7bd54b99daa7f0b9a9427c8ec0e93feb11b72
SHA256 51dc0a55e0f705d53e83dd1aa678f8db874bc02bc30d3f386858d1a3a147d8d2
SHA512 0169846feadf444353e5f90f614c6ba238b0a9475bfb96d53080252c73084096d6213ad9505307a7a5960cee9a96d4edf8ca017667fdc21953f10285240bd55a

\Users\Admin\AppData\Local\Temp\7099371.dll

MD5 4f20adf798f7b1e0dce5870dbafea689
SHA1 49f7bd54b99daa7f0b9a9427c8ec0e93feb11b72
SHA256 51dc0a55e0f705d53e83dd1aa678f8db874bc02bc30d3f386858d1a3a147d8d2
SHA512 0169846feadf444353e5f90f614c6ba238b0a9475bfb96d53080252c73084096d6213ad9505307a7a5960cee9a96d4edf8ca017667fdc21953f10285240bd55a

\Users\Admin\AppData\Local\Temp\7099371.dll

MD5 4f20adf798f7b1e0dce5870dbafea689
SHA1 49f7bd54b99daa7f0b9a9427c8ec0e93feb11b72
SHA256 51dc0a55e0f705d53e83dd1aa678f8db874bc02bc30d3f386858d1a3a147d8d2
SHA512 0169846feadf444353e5f90f614c6ba238b0a9475bfb96d53080252c73084096d6213ad9505307a7a5960cee9a96d4edf8ca017667fdc21953f10285240bd55a

C:\Windows\SysWOW64\AxInstSVS.exe

MD5 51138beea3e2c21ec44d0932c71762a8
SHA1 8939cf35447b22dd2c6e6f443446acc1bf986d58
SHA256 5ad3c37e6f2b9db3ee8b5aeedc474645de90c66e3d95f8620c48102f1eba4124
SHA512 794f30fe452117ff2a26dc9d7086aaf82b639c2632ac2e381a81f5239caaec7c96922ba5d2d90bfd8d74f0a6cd4f79fbda63e14c6b779e5cf6834c13e4e45e7d

\Users\Admin\AppData\Local\Temp\7099371.dll

MD5 4f20adf798f7b1e0dce5870dbafea689
SHA1 49f7bd54b99daa7f0b9a9427c8ec0e93feb11b72
SHA256 51dc0a55e0f705d53e83dd1aa678f8db874bc02bc30d3f386858d1a3a147d8d2
SHA512 0169846feadf444353e5f90f614c6ba238b0a9475bfb96d53080252c73084096d6213ad9505307a7a5960cee9a96d4edf8ca017667fdc21953f10285240bd55a