Malware Analysis Report

2024-11-30 10:53

Sample ID 231028-dfct5sda4x
Target NEAS.49c3b347ca62ccbcc07a3870d4a53de0_JC.exe
SHA256 d75aae0f91fc9bff9358a0787b2f42dde7ad5c037030f901d7072ef461d79e3c
Tags
fakeav spyware fakeav persistence
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

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

d75aae0f91fc9bff9358a0787b2f42dde7ad5c037030f901d7072ef461d79e3c

Threat Level: Known bad

The file NEAS.49c3b347ca62ccbcc07a3870d4a53de0_JC.exe was found to be: Known bad.

Malicious Activity Summary

fakeav spyware fakeav persistence

FakeAV payload

Fakeav family

FakeAV, RogueAntivirus

FakeAV payload

Adds Run key to start application

Drops file in System32 directory

Drops file in Windows directory

Unsigned PE

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-10-28 02:56

Signatures

FakeAV payload

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

Fakeav family

fakeav

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2023-10-28 02:56

Reported

2023-10-28 02:59

Platform

win7-20231023-en

Max time kernel

140s

Max time network

120s

Command Line

"C:\Users\Admin\AppData\Local\Temp\NEAS.49c3b347ca62ccbcc07a3870d4a53de0_JC.exe"

Signatures

FakeAV, RogueAntivirus

fakeav spyware fakeav

FakeAV payload

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

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\RunOnce\MSBLT.EXE = "C:\\Windows\\MSBLT.EXE" C:\Users\Admin\AppData\Local\Temp\NEAS.49c3b347ca62ccbcc07a3870d4a53de0_JC.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\NEAS.49c3b347ca62ccbcc07a3870d4a53de0_JC.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\NEAS.49c3b347ca62ccbcc07a3870d4a53de0_JC.exe N/A
File opened for modification C:\Windows\SysWOW64\CSRLT.EXE C:\Users\Admin\AppData\Local\Temp\NEAS.49c3b347ca62ccbcc07a3870d4a53de0_JC.exe N/A

Drops file in Windows directory

Description Indicator Process Target
File created C:\Windows\MSBLT.EXE C:\Users\Admin\AppData\Local\Temp\NEAS.49c3b347ca62ccbcc07a3870d4a53de0_JC.exe N/A
File opened for modification C:\Windows\MSBLT.EXE C:\Users\Admin\AppData\Local\Temp\NEAS.49c3b347ca62ccbcc07a3870d4a53de0_JC.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\NEAS.49c3b347ca62ccbcc07a3870d4a53de0_JC.exe

"C:\Users\Admin\AppData\Local\Temp\NEAS.49c3b347ca62ccbcc07a3870d4a53de0_JC.exe"

Network

N/A

Files

memory/812-0-0x0000000000180000-0x0000000000181000-memory.dmp

memory/812-5-0x0000000000400000-0x00000000004BD000-memory.dmp

memory/812-6-0x0000000000180000-0x0000000000181000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2023-10-28 02:56

Reported

2023-10-28 02:59

Platform

win10v2004-20231023-en

Max time kernel

141s

Max time network

154s

Command Line

"C:\Users\Admin\AppData\Local\Temp\NEAS.49c3b347ca62ccbcc07a3870d4a53de0_JC.exe"

Signatures

FakeAV, RogueAntivirus

fakeav spyware fakeav

FakeAV payload

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

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\CSRLT.EXE = "C:\\Windows\\system32\\CSRLT.EXE" C:\Users\Admin\AppData\Local\Temp\NEAS.49c3b347ca62ccbcc07a3870d4a53de0_JC.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\NEAS.49c3b347ca62ccbcc07a3870d4a53de0_JC.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\NEAS.49c3b347ca62ccbcc07a3870d4a53de0_JC.exe N/A
File opened for modification C:\Windows\SysWOW64\CSRLT.EXE C:\Users\Admin\AppData\Local\Temp\NEAS.49c3b347ca62ccbcc07a3870d4a53de0_JC.exe N/A

Drops file in Windows directory

Description Indicator Process Target
File created C:\Windows\MSBLT.EXE C:\Users\Admin\AppData\Local\Temp\NEAS.49c3b347ca62ccbcc07a3870d4a53de0_JC.exe N/A
File opened for modification C:\Windows\MSBLT.EXE C:\Users\Admin\AppData\Local\Temp\NEAS.49c3b347ca62ccbcc07a3870d4a53de0_JC.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\NEAS.49c3b347ca62ccbcc07a3870d4a53de0_JC.exe

"C:\Users\Admin\AppData\Local\Temp\NEAS.49c3b347ca62ccbcc07a3870d4a53de0_JC.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 14.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 9.228.82.20.in-addr.arpa udp
US 8.8.8.8:53 8.3.197.209.in-addr.arpa udp
US 8.8.8.8:53 39.142.81.104.in-addr.arpa udp
US 8.8.8.8:53 157.123.68.40.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 1.202.248.87.in-addr.arpa udp
US 8.8.8.8:53 22.236.111.52.in-addr.arpa udp
US 8.8.8.8:53 14.173.189.20.in-addr.arpa udp

Files

memory/4648-0-0x0000000002020000-0x0000000002021000-memory.dmp

memory/4648-5-0x0000000000400000-0x00000000004BD000-memory.dmp

memory/4648-6-0x0000000002020000-0x0000000002021000-memory.dmp