Malware Analysis Report

2025-03-14 21:59

Sample ID 240522-veq4tahf67
Target 88ceea988a4b66edfa194eae2aaf50951c6fbbc7d5aa8d19351d36531667fd89 2
SHA256 88ceea988a4b66edfa194eae2aaf50951c6fbbc7d5aa8d19351d36531667fd89
Tags
easystealer stealer
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

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

88ceea988a4b66edfa194eae2aaf50951c6fbbc7d5aa8d19351d36531667fd89

Threat Level: Known bad

The file 88ceea988a4b66edfa194eae2aaf50951c6fbbc7d5aa8d19351d36531667fd89 2 was found to be: Known bad.

Malicious Activity Summary

easystealer stealer

Detects Easy Stealer

EasyStealer

Easystealer family

Program crash

Unsigned PE

Suspicious use of WriteProcessMemory

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2024-05-22 16:54

Signatures

Detects Easy Stealer

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

Easystealer family

easystealer

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-05-22 16:54

Reported

2024-05-22 16:57

Platform

win7-20231129-en

Max time kernel

118s

Max time network

119s

Command Line

regsvr32 /s "C:\Users\Admin\AppData\Local\Temp\88ceea988a4b66edfa194eae2aaf50951c6fbbc7d5aa8d19351d36531667fd89 2.exe"

Signatures

Processes

C:\Windows\system32\regsvr32.exe

regsvr32 /s "C:\Users\Admin\AppData\Local\Temp\88ceea988a4b66edfa194eae2aaf50951c6fbbc7d5aa8d19351d36531667fd89 2.exe"

C:\Windows\SysWOW64\regsvr32.exe

/s "C:\Users\Admin\AppData\Local\Temp\88ceea988a4b66edfa194eae2aaf50951c6fbbc7d5aa8d19351d36531667fd89 2.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2276 -s 292

Network

N/A

Files

N/A

Analysis: behavioral2

Detonation Overview

Submitted

2024-05-22 16:54

Reported

2024-05-22 16:57

Platform

win10v2004-20240226-en

Max time kernel

141s

Max time network

151s

Command Line

regsvr32 /s "C:\Users\Admin\AppData\Local\Temp\88ceea988a4b66edfa194eae2aaf50951c6fbbc7d5aa8d19351d36531667fd89 2.exe"

Signatures

Detects Easy Stealer

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

EasyStealer

stealer easystealer

Program crash

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\WerFault.exe C:\Windows\SysWOW64\regsvr32.exe

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3812 wrote to memory of 3544 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 3812 wrote to memory of 3544 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 3812 wrote to memory of 3544 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe

Processes

C:\Windows\system32\regsvr32.exe

regsvr32 /s "C:\Users\Admin\AppData\Local\Temp\88ceea988a4b66edfa194eae2aaf50951c6fbbc7d5aa8d19351d36531667fd89 2.exe"

C:\Windows\SysWOW64\regsvr32.exe

/s "C:\Users\Admin\AppData\Local\Temp\88ceea988a4b66edfa194eae2aaf50951c6fbbc7d5aa8d19351d36531667fd89 2.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 3544 -ip 3544

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 3544 -s 608

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=1324 --field-trial-handle=2280,i,1836084024518340990,18250262151825427757,262144 --variations-seed-version /prefetch:8

Network

Country Destination Domain Proto
US 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
US 8.8.8.8:53 0.204.248.87.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
GB 142.250.187.202:443 tcp
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 28.118.140.52.in-addr.arpa udp
US 8.8.8.8:53 203.107.17.2.in-addr.arpa udp
US 8.8.8.8:53 14.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 14.173.189.20.in-addr.arpa udp

Files

memory/3544-0-0x0000000002130000-0x000000000262A000-memory.dmp