Malware Analysis Report

2024-10-24 17:03

Sample ID 220802-fqt8aabcc5
Target c.exe
SHA256 d759e1ec1af4392131aa3aa7f8446f8078d16bb3405b12ed62f123aca95c969c
Tags
runningrat persistence rat
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V6

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

d759e1ec1af4392131aa3aa7f8446f8078d16bb3405b12ed62f123aca95c969c

Threat Level: Known bad

The file c.exe was found to be: Known bad.

Malicious Activity Summary

runningrat persistence rat

RunningRat payload

Runningrat family

RunningRat

Executes dropped EXE

Sets DLL path for service in the registry

Loads dropped DLL

Drops file in System32 directory

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2022-08-02 05:05

Signatures

RunningRat payload

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

Runningrat family

runningrat

Analysis: behavioral1

Detonation Overview

Submitted

2022-08-02 05:05

Reported

2022-08-02 05:07

Platform

win7-20220715-en

Max time kernel

129s

Max time network

41s

Command Line

"C:\Users\Admin\AppData\Local\Temp\c.exe"

Signatures

RunningRat

rat runningrat

RunningRat payload

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

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\WindowsSystem32.exe N/A

Sets DLL path for service in the registry

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\WindowsSystem32\Parameters\ServiceDll = "C:\\Users\\Admin\\AppData\\Local\\Temp\\7102553.dll" C:\Users\Admin\AppData\Local\Temp\c.exe N/A

Drops file in System32 directory

Description Indicator Process Target
File created C:\Windows\SysWOW64\WindowsSystem32.exe C:\Windows\SysWOW64\svchost.exe N/A
File opened for modification C:\Windows\SysWOW64\WindowsSystem32.exe C:\Windows\SysWOW64\svchost.exe N/A
File opened for modification C:\Windows\SysWOW64\ini.ini C:\Users\Admin\AppData\Local\Temp\c.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1896 wrote to memory of 1312 N/A C:\Windows\SysWOW64\svchost.exe C:\Windows\SysWOW64\WindowsSystem32.exe
PID 1896 wrote to memory of 1312 N/A C:\Windows\SysWOW64\svchost.exe C:\Windows\SysWOW64\WindowsSystem32.exe
PID 1896 wrote to memory of 1312 N/A C:\Windows\SysWOW64\svchost.exe C:\Windows\SysWOW64\WindowsSystem32.exe
PID 1896 wrote to memory of 1312 N/A C:\Windows\SysWOW64\svchost.exe C:\Windows\SysWOW64\WindowsSystem32.exe

Processes

C:\Users\Admin\AppData\Local\Temp\c.exe

"C:\Users\Admin\AppData\Local\Temp\c.exe"

C:\Windows\SysWOW64\svchost.exe

C:\Windows\SysWOW64\svchost.exe -k "WindowsSystem32"

C:\Windows\SysWOW64\svchost.exe

C:\Windows\SysWOW64\svchost.exe -k "WindowsSystem32"

C:\Windows\SysWOW64\WindowsSystem32.exe

C:\Windows\system32\WindowsSystem32.exe "c:\users\admin\appdata\local\temp\7102553.dll",MainThread

Network

Country Destination Domain Proto
US 8.8.8.8:53 a.yuantahaizai.biz udp

Files

memory/1752-54-0x0000000010000000-0x000000001000F000-memory.dmp

memory/1752-58-0x0000000075F81000-0x0000000075F83000-memory.dmp

\Users\Admin\AppData\Local\Temp\7102553.dll

MD5 b275f4b7334e4b7de09886368584fa03
SHA1 f1d9c686d6688bb384f13c3d48b035f26fc63f7e
SHA256 a83cf59d71d9c868acf7f0c83afbad3d56b4bf07d7885400b3bf85ee56bd1e34
SHA512 ac17902025f49652860f0002d309ccd85364d532ef656224ddc2394bcde09c99fab1ef0b8caf10b71340ae243b8c911719895f93563aa3938f0a153e93aec1d9

memory/1752-60-0x0000000000250000-0x000000000025D000-memory.dmp

\Users\Admin\AppData\Local\Temp\7102553.dll

MD5 b275f4b7334e4b7de09886368584fa03
SHA1 f1d9c686d6688bb384f13c3d48b035f26fc63f7e
SHA256 a83cf59d71d9c868acf7f0c83afbad3d56b4bf07d7885400b3bf85ee56bd1e34
SHA512 ac17902025f49652860f0002d309ccd85364d532ef656224ddc2394bcde09c99fab1ef0b8caf10b71340ae243b8c911719895f93563aa3938f0a153e93aec1d9

\??\c:\users\admin\appdata\local\temp\7102553.dll

MD5 b275f4b7334e4b7de09886368584fa03
SHA1 f1d9c686d6688bb384f13c3d48b035f26fc63f7e
SHA256 a83cf59d71d9c868acf7f0c83afbad3d56b4bf07d7885400b3bf85ee56bd1e34
SHA512 ac17902025f49652860f0002d309ccd85364d532ef656224ddc2394bcde09c99fab1ef0b8caf10b71340ae243b8c911719895f93563aa3938f0a153e93aec1d9

\Windows\SysWOW64\WindowsSystem32.exe

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

memory/1312-65-0x0000000000000000-mapping.dmp

C:\Windows\SysWOW64\WindowsSystem32.exe

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

\Users\Admin\AppData\Local\Temp\7102553.dll

MD5 b275f4b7334e4b7de09886368584fa03
SHA1 f1d9c686d6688bb384f13c3d48b035f26fc63f7e
SHA256 a83cf59d71d9c868acf7f0c83afbad3d56b4bf07d7885400b3bf85ee56bd1e34
SHA512 ac17902025f49652860f0002d309ccd85364d532ef656224ddc2394bcde09c99fab1ef0b8caf10b71340ae243b8c911719895f93563aa3938f0a153e93aec1d9

\Users\Admin\AppData\Local\Temp\7102553.dll

MD5 b275f4b7334e4b7de09886368584fa03
SHA1 f1d9c686d6688bb384f13c3d48b035f26fc63f7e
SHA256 a83cf59d71d9c868acf7f0c83afbad3d56b4bf07d7885400b3bf85ee56bd1e34
SHA512 ac17902025f49652860f0002d309ccd85364d532ef656224ddc2394bcde09c99fab1ef0b8caf10b71340ae243b8c911719895f93563aa3938f0a153e93aec1d9

\Users\Admin\AppData\Local\Temp\7102553.dll

MD5 b275f4b7334e4b7de09886368584fa03
SHA1 f1d9c686d6688bb384f13c3d48b035f26fc63f7e
SHA256 a83cf59d71d9c868acf7f0c83afbad3d56b4bf07d7885400b3bf85ee56bd1e34
SHA512 ac17902025f49652860f0002d309ccd85364d532ef656224ddc2394bcde09c99fab1ef0b8caf10b71340ae243b8c911719895f93563aa3938f0a153e93aec1d9

C:\Windows\SysWOW64\WindowsSystem32.exe

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

\Users\Admin\AppData\Local\Temp\7102553.dll

MD5 b275f4b7334e4b7de09886368584fa03
SHA1 f1d9c686d6688bb384f13c3d48b035f26fc63f7e
SHA256 a83cf59d71d9c868acf7f0c83afbad3d56b4bf07d7885400b3bf85ee56bd1e34
SHA512 ac17902025f49652860f0002d309ccd85364d532ef656224ddc2394bcde09c99fab1ef0b8caf10b71340ae243b8c911719895f93563aa3938f0a153e93aec1d9

Analysis: behavioral2

Detonation Overview

Submitted

2022-08-02 05:05

Reported

2022-08-02 05:08

Platform

win10v2004-20220721-en

Max time kernel

150s

Max time network

170s

Command Line

"C:\Users\Admin\AppData\Local\Temp\c.exe"

Signatures

RunningRat

rat runningrat

RunningRat payload

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

Loads dropped DLL

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\c.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\c.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\c.exe

"C:\Users\Admin\AppData\Local\Temp\c.exe"

Network

Country Destination Domain Proto
US 8.253.146.121:80 tcp
US 8.253.146.121:80 tcp
US 8.253.146.121:80 tcp
US 93.184.220.29:80 tcp
US 93.184.220.29:80 tcp
US 93.184.220.29:80 tcp
US 93.184.220.29:80 tcp
FR 40.79.141.154:443 tcp
FR 2.18.109.224:443 tcp
US 8.8.8.8:53 164.2.77.40.in-addr.arpa udp
US 8.8.8.8:53 7.6.0.0.0.0.0.0.0.0.0.0.0.0.0.0.3.0.0.0.2.0.0.0.0.2.0.1.3.0.6.2.ip6.arpa udp
FR 2.16.119.157:443 tcp
US 8.253.146.121:80 tcp
FR 2.16.119.157:443 tcp
US 8.253.183.249:80 tcp

Files

memory/456-130-0x0000000010000000-0x000000001000F000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\240560937.dll

MD5 b275f4b7334e4b7de09886368584fa03
SHA1 f1d9c686d6688bb384f13c3d48b035f26fc63f7e
SHA256 a83cf59d71d9c868acf7f0c83afbad3d56b4bf07d7885400b3bf85ee56bd1e34
SHA512 ac17902025f49652860f0002d309ccd85364d532ef656224ddc2394bcde09c99fab1ef0b8caf10b71340ae243b8c911719895f93563aa3938f0a153e93aec1d9

C:\Users\Admin\AppData\Local\Temp\240560937.dll

MD5 b275f4b7334e4b7de09886368584fa03
SHA1 f1d9c686d6688bb384f13c3d48b035f26fc63f7e
SHA256 a83cf59d71d9c868acf7f0c83afbad3d56b4bf07d7885400b3bf85ee56bd1e34
SHA512 ac17902025f49652860f0002d309ccd85364d532ef656224ddc2394bcde09c99fab1ef0b8caf10b71340ae243b8c911719895f93563aa3938f0a153e93aec1d9

memory/456-136-0x0000000000550000-0x000000000055D000-memory.dmp