Malware Analysis Report

2024-11-30 10:53

Sample ID 221205-kh1sbagc2z
Target b2644833655b5b7a5a504232ade7dfedc10f6c9d0b877acc12342e57178c996b
SHA256 b2644833655b5b7a5a504232ade7dfedc10f6c9d0b877acc12342e57178c996b
Tags
fakeav spyware fakeav persistence
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

b2644833655b5b7a5a504232ade7dfedc10f6c9d0b877acc12342e57178c996b

Threat Level: Known bad

The file b2644833655b5b7a5a504232ade7dfedc10f6c9d0b877acc12342e57178c996b was found to be: Known bad.

Malicious Activity Summary

fakeav spyware fakeav persistence

FakeAV payload

Fakeav family

FakeAV, RogueAntivirus

Adds Run key to start application

Drops file in System32 directory

Drops file in Windows directory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2022-12-05 08:36

Signatures

FakeAV payload

fakeav spyware
Description Indicator Process Target
N/A N/A N/A N/A

Fakeav family

fakeav

Analysis: behavioral1

Detonation Overview

Submitted

2022-12-05 08:36

Reported

2022-12-09 12:12

Platform

win7-20220812-en

Max time kernel

27s

Max time network

48s

Command Line

"C:\Users\Admin\AppData\Local\Temp\b2644833655b5b7a5a504232ade7dfedc10f6c9d0b877acc12342e57178c996b.exe"

Signatures

FakeAV, RogueAntivirus

fakeav spyware fakeav

Adds Run key to start application

persistence
Description Indicator Process Target
Key created \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run C:\Users\Admin\AppData\Local\Temp\b2644833655b5b7a5a504232ade7dfedc10f6c9d0b877acc12342e57178c996b.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\CSRLT.EXE = "C:\\Windows\\system32\\CSRLT.EXE" C:\Users\Admin\AppData\Local\Temp\b2644833655b5b7a5a504232ade7dfedc10f6c9d0b877acc12342e57178c996b.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\RunOnce C:\Users\Admin\AppData\Local\Temp\b2644833655b5b7a5a504232ade7dfedc10f6c9d0b877acc12342e57178c996b.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\RunOnce\MSBLT.EXE = "C:\\Windows\\MSBLT.EXE" C:\Users\Admin\AppData\Local\Temp\b2644833655b5b7a5a504232ade7dfedc10f6c9d0b877acc12342e57178c996b.exe N/A

Drops file in System32 directory

Description Indicator Process Target
File opened for modification C:\Windows\SysWOW64\CSRLT.EXE C:\Users\Admin\AppData\Local\Temp\b2644833655b5b7a5a504232ade7dfedc10f6c9d0b877acc12342e57178c996b.exe N/A
File created C:\Windows\SysWOW64\CSRLT.EXE C:\Users\Admin\AppData\Local\Temp\b2644833655b5b7a5a504232ade7dfedc10f6c9d0b877acc12342e57178c996b.exe N/A

Drops file in Windows directory

Description Indicator Process Target
File created C:\Windows\MSBLT.EXE C:\Users\Admin\AppData\Local\Temp\b2644833655b5b7a5a504232ade7dfedc10f6c9d0b877acc12342e57178c996b.exe N/A
File opened for modification C:\Windows\MSBLT.EXE C:\Users\Admin\AppData\Local\Temp\b2644833655b5b7a5a504232ade7dfedc10f6c9d0b877acc12342e57178c996b.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\b2644833655b5b7a5a504232ade7dfedc10f6c9d0b877acc12342e57178c996b.exe

"C:\Users\Admin\AppData\Local\Temp\b2644833655b5b7a5a504232ade7dfedc10f6c9d0b877acc12342e57178c996b.exe"

Network

N/A

Files

memory/1632-54-0x00000000761F1000-0x00000000761F3000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2022-12-05 08:36

Reported

2022-12-09 12:12

Platform

win10v2004-20220812-en

Max time kernel

141s

Max time network

154s

Command Line

"C:\Users\Admin\AppData\Local\Temp\b2644833655b5b7a5a504232ade7dfedc10f6c9d0b877acc12342e57178c996b.exe"

Signatures

FakeAV, RogueAntivirus

fakeav spyware fakeav

Adds Run key to start application

persistence
Description Indicator Process Target
Key created \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run C:\Users\Admin\AppData\Local\Temp\b2644833655b5b7a5a504232ade7dfedc10f6c9d0b877acc12342e57178c996b.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\CSRLT.EXE = "C:\\Windows\\system32\\CSRLT.EXE" C:\Users\Admin\AppData\Local\Temp\b2644833655b5b7a5a504232ade7dfedc10f6c9d0b877acc12342e57178c996b.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce C:\Users\Admin\AppData\Local\Temp\b2644833655b5b7a5a504232ade7dfedc10f6c9d0b877acc12342e57178c996b.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce\MSBLT.EXE = "C:\\Windows\\MSBLT.EXE" C:\Users\Admin\AppData\Local\Temp\b2644833655b5b7a5a504232ade7dfedc10f6c9d0b877acc12342e57178c996b.exe N/A

Drops file in System32 directory

Description Indicator Process Target
File created C:\Windows\SysWOW64\CSRLT.EXE C:\Users\Admin\AppData\Local\Temp\b2644833655b5b7a5a504232ade7dfedc10f6c9d0b877acc12342e57178c996b.exe N/A
File opened for modification C:\Windows\SysWOW64\CSRLT.EXE C:\Users\Admin\AppData\Local\Temp\b2644833655b5b7a5a504232ade7dfedc10f6c9d0b877acc12342e57178c996b.exe N/A

Drops file in Windows directory

Description Indicator Process Target
File created C:\Windows\MSBLT.EXE C:\Users\Admin\AppData\Local\Temp\b2644833655b5b7a5a504232ade7dfedc10f6c9d0b877acc12342e57178c996b.exe N/A
File opened for modification C:\Windows\MSBLT.EXE C:\Users\Admin\AppData\Local\Temp\b2644833655b5b7a5a504232ade7dfedc10f6c9d0b877acc12342e57178c996b.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\b2644833655b5b7a5a504232ade7dfedc10f6c9d0b877acc12342e57178c996b.exe

"C:\Users\Admin\AppData\Local\Temp\b2644833655b5b7a5a504232ade7dfedc10f6c9d0b877acc12342e57178c996b.exe"

Network

Country Destination Domain Proto
N/A 87.248.202.1:80 tcp
N/A 178.79.208.1:80 tcp
N/A 20.52.64.200:443 tcp
N/A 40.126.32.136:443 tcp
N/A 40.126.32.136:443 tcp
N/A 93.184.220.29:80 tcp
N/A 8.8.8.8:53 14.110.152.52.in-addr.arpa udp
N/A 87.248.202.1:80 tcp
N/A 40.126.32.74:443 tcp
N/A 40.126.32.74:443 tcp
N/A 40.126.32.133:443 tcp

Files

N/A