Malware Analysis Report

2024-11-15 06:52

Sample ID 240314-hgg8gafc22
Target c7f2c28a5bcffb9d4ddcb0b0084a66bb
SHA256 544f2380e2d8c03f765bca1bc2e42a23fb884e433246154a6a48c8ea9ad73c00
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

544f2380e2d8c03f765bca1bc2e42a23fb884e433246154a6a48c8ea9ad73c00

Threat Level: Known bad

The file c7f2c28a5bcffb9d4ddcb0b0084a66bb was found to be: Known bad.

Malicious Activity Summary

fakeav spyware fakeav persistence

Fakeav family

FakeAV, RogueAntivirus

FakeAV payload

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

2024-03-14 06:42

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

2024-03-14 06:42

Reported

2024-03-14 06:44

Platform

win7-20240221-en

Max time kernel

140s

Max time network

118s

Command Line

"C:\Users\Admin\AppData\Local\Temp\c7f2c28a5bcffb9d4ddcb0b0084a66bb.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\c7f2c28a5bcffb9d4ddcb0b0084a66bb.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\c7f2c28a5bcffb9d4ddcb0b0084a66bb.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\c7f2c28a5bcffb9d4ddcb0b0084a66bb.exe N/A
File opened for modification C:\Windows\SysWOW64\CSRLT.EXE C:\Users\Admin\AppData\Local\Temp\c7f2c28a5bcffb9d4ddcb0b0084a66bb.exe N/A

Drops file in Windows directory

Description Indicator Process Target
File created C:\Windows\MSBLT.EXE C:\Users\Admin\AppData\Local\Temp\c7f2c28a5bcffb9d4ddcb0b0084a66bb.exe N/A
File opened for modification C:\Windows\MSBLT.EXE C:\Users\Admin\AppData\Local\Temp\c7f2c28a5bcffb9d4ddcb0b0084a66bb.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\c7f2c28a5bcffb9d4ddcb0b0084a66bb.exe

"C:\Users\Admin\AppData\Local\Temp\c7f2c28a5bcffb9d4ddcb0b0084a66bb.exe"

Network

N/A

Files

memory/1048-0-0x0000000000170000-0x0000000000171000-memory.dmp

memory/1048-5-0x0000000000400000-0x00000000004BD000-memory.dmp

memory/1048-7-0x0000000000170000-0x0000000000171000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-03-14 06:42

Reported

2024-03-14 06:45

Platform

win10v2004-20240226-en

Max time kernel

147s

Max time network

152s

Command Line

"C:\Users\Admin\AppData\Local\Temp\c7f2c28a5bcffb9d4ddcb0b0084a66bb.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\c7f2c28a5bcffb9d4ddcb0b0084a66bb.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\c7f2c28a5bcffb9d4ddcb0b0084a66bb.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\c7f2c28a5bcffb9d4ddcb0b0084a66bb.exe N/A
File opened for modification C:\Windows\SysWOW64\CSRLT.EXE C:\Users\Admin\AppData\Local\Temp\c7f2c28a5bcffb9d4ddcb0b0084a66bb.exe N/A

Drops file in Windows directory

Description Indicator Process Target
File created C:\Windows\MSBLT.EXE C:\Users\Admin\AppData\Local\Temp\c7f2c28a5bcffb9d4ddcb0b0084a66bb.exe N/A
File opened for modification C:\Windows\MSBLT.EXE C:\Users\Admin\AppData\Local\Temp\c7f2c28a5bcffb9d4ddcb0b0084a66bb.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\c7f2c28a5bcffb9d4ddcb0b0084a66bb.exe

"C:\Users\Admin\AppData\Local\Temp\c7f2c28a5bcffb9d4ddcb0b0084a66bb.exe"

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe

"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4340 --field-trial-handle=2252,i,16022092570067181109,3235558581947505669,262144 --variations-seed-version /prefetch:8

Network

Country Destination Domain Proto
US 8.8.8.8:53 0.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 180.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 9.228.82.20.in-addr.arpa udp
US 8.8.8.8:53 241.150.49.20.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.200:443 g.bing.com tcp
US 8.8.8.8:53 200.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 41.110.16.96.in-addr.arpa udp
US 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 18.134.221.88.in-addr.arpa udp
US 8.8.8.8:53 194.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 55.36.223.20.in-addr.arpa udp
US 8.8.8.8:53 205.47.74.20.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 8.8.8.8:53 11.173.189.20.in-addr.arpa udp

Files

memory/5020-0-0x0000000002140000-0x0000000002141000-memory.dmp

memory/5020-5-0x0000000000400000-0x00000000004BD000-memory.dmp

memory/5020-7-0x0000000002140000-0x0000000002141000-memory.dmp