Malware Analysis Report

2024-11-30 10:53

Sample ID 230923-m2h3qaee41
Target 2dc7bd7d9226e036c6975ae3e5d74946_JC.exe
SHA256 804b088ee714bf7a63b004f7ec2260bd1956fa64fcb04481d2aece4cb88c2404
Tags
fakeav fakeav persistence spyware
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

804b088ee714bf7a63b004f7ec2260bd1956fa64fcb04481d2aece4cb88c2404

Threat Level: Known bad

The file 2dc7bd7d9226e036c6975ae3e5d74946_JC.exe was found to be: Known bad.

Malicious Activity Summary

fakeav fakeav persistence spyware

FakeAV, RogueAntivirus

FakeAV payload

Fakeav family

FakeAV payload

Adds Run key to start application

Drops file in System32 directory

Drops file in Windows directory

Unsigned PE

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-09-23 10:57

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

2023-09-23 10:57

Reported

2023-09-23 11:00

Platform

win7-20230831-en

Max time kernel

142s

Max time network

125s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2dc7bd7d9226e036c6975ae3e5d74946_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\2dc7bd7d9226e036c6975ae3e5d74946_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\2dc7bd7d9226e036c6975ae3e5d74946_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\2dc7bd7d9226e036c6975ae3e5d74946_JC.exe N/A
File opened for modification C:\Windows\SysWOW64\CSRLT.EXE C:\Users\Admin\AppData\Local\Temp\2dc7bd7d9226e036c6975ae3e5d74946_JC.exe N/A

Drops file in Windows directory

Description Indicator Process Target
File opened for modification C:\Windows\MSBLT.EXE C:\Users\Admin\AppData\Local\Temp\2dc7bd7d9226e036c6975ae3e5d74946_JC.exe N/A
File created C:\Windows\MSBLT.EXE C:\Users\Admin\AppData\Local\Temp\2dc7bd7d9226e036c6975ae3e5d74946_JC.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\2dc7bd7d9226e036c6975ae3e5d74946_JC.exe

"C:\Users\Admin\AppData\Local\Temp\2dc7bd7d9226e036c6975ae3e5d74946_JC.exe"

Network

N/A

Files

memory/1976-0-0x0000000000170000-0x0000000000171000-memory.dmp

memory/1976-5-0x0000000000400000-0x00000000004BD000-memory.dmp

memory/1976-6-0x0000000000170000-0x0000000000171000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2023-09-23 10:57

Reported

2023-09-23 11:00

Platform

win10v2004-20230915-en

Max time kernel

146s

Max time network

155s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2dc7bd7d9226e036c6975ae3e5d74946_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\2dc7bd7d9226e036c6975ae3e5d74946_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\2dc7bd7d9226e036c6975ae3e5d74946_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\2dc7bd7d9226e036c6975ae3e5d74946_JC.exe N/A
File opened for modification C:\Windows\SysWOW64\CSRLT.EXE C:\Users\Admin\AppData\Local\Temp\2dc7bd7d9226e036c6975ae3e5d74946_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\2dc7bd7d9226e036c6975ae3e5d74946_JC.exe N/A
File opened for modification C:\Windows\MSBLT.EXE C:\Users\Admin\AppData\Local\Temp\2dc7bd7d9226e036c6975ae3e5d74946_JC.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeManageVolumePrivilege N/A C:\Windows\System32\svchost.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\2dc7bd7d9226e036c6975ae3e5d74946_JC.exe

"C:\Users\Admin\AppData\Local\Temp\2dc7bd7d9226e036c6975ae3e5d74946_JC.exe"

C:\Windows\system32\rundll32.exe

"C:\Windows\system32\rundll32.exe" "C:\Windows\SYSTEM32\EDGEHTML.dll",#141 Microsoft.VCLibs.140.00_8wekyb3d8bbwe

C:\Windows\System32\svchost.exe

C:\Windows\System32\svchost.exe -k UnistackSvcGroup

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 158.240.127.40.in-addr.arpa udp
US 8.8.8.8:53 136.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 241.154.82.20.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 198.1.85.104.in-addr.arpa udp
US 8.8.8.8:53 200.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 135.1.85.104.in-addr.arpa udp
US 8.8.8.8:53 119.110.54.20.in-addr.arpa udp
US 8.8.8.8:53 126.24.238.8.in-addr.arpa udp
US 8.8.8.8:53 126.177.238.8.in-addr.arpa udp
US 8.8.8.8:53 208.14.97.104.in-addr.arpa udp
US 8.8.8.8:53 13.173.189.20.in-addr.arpa udp

Files

memory/2000-0-0x0000000002070000-0x0000000002071000-memory.dmp

memory/2000-5-0x0000000000400000-0x00000000004BD000-memory.dmp

memory/2000-6-0x0000000002070000-0x0000000002071000-memory.dmp

memory/2676-13-0x0000023AB0C40000-0x0000023AB0C50000-memory.dmp

memory/2676-29-0x0000023AB0D40000-0x0000023AB0D50000-memory.dmp

memory/2676-45-0x0000023AB9070000-0x0000023AB9071000-memory.dmp

memory/2676-47-0x0000023AB90A0000-0x0000023AB90A1000-memory.dmp

memory/2676-48-0x0000023AB90A0000-0x0000023AB90A1000-memory.dmp

memory/2676-49-0x0000023AB91B0000-0x0000023AB91B1000-memory.dmp