Malware Analysis Report

2025-01-03 04:58

Sample ID 220415-pq62hshchq
Target e2ff5ae0c4704ed86ffe70e708431e96135005df32870ee0dd4ee18c37ed2424
SHA256 e2ff5ae0c4704ed86ffe70e708431e96135005df32870ee0dd4ee18c37ed2424
Tags
oski infostealer spyware stealer
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

e2ff5ae0c4704ed86ffe70e708431e96135005df32870ee0dd4ee18c37ed2424

Threat Level: Known bad

The file e2ff5ae0c4704ed86ffe70e708431e96135005df32870ee0dd4ee18c37ed2424 was found to be: Known bad.

Malicious Activity Summary

oski infostealer spyware stealer

Oski

Reads user/profile data of web browsers

Suspicious use of SetThreadContext

Program crash

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2022-04-15 12:33

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2022-04-15 12:33

Reported

2022-04-15 13:33

Platform

win7-20220414-en

Max time kernel

74s

Max time network

80s

Command Line

"C:\Users\Admin\AppData\Local\Temp\e2ff5ae0c4704ed86ffe70e708431e96135005df32870ee0dd4ee18c37ed2424.exe"

Signatures

Oski

infostealer oski

Reads user/profile data of web browsers

spyware stealer

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\e2ff5ae0c4704ed86ffe70e708431e96135005df32870ee0dd4ee18c37ed2424.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1944 wrote to memory of 1780 N/A C:\Users\Admin\AppData\Local\Temp\e2ff5ae0c4704ed86ffe70e708431e96135005df32870ee0dd4ee18c37ed2424.exe C:\Users\Admin\AppData\Local\Temp\e2ff5ae0c4704ed86ffe70e708431e96135005df32870ee0dd4ee18c37ed2424.exe
PID 1944 wrote to memory of 1780 N/A C:\Users\Admin\AppData\Local\Temp\e2ff5ae0c4704ed86ffe70e708431e96135005df32870ee0dd4ee18c37ed2424.exe C:\Users\Admin\AppData\Local\Temp\e2ff5ae0c4704ed86ffe70e708431e96135005df32870ee0dd4ee18c37ed2424.exe
PID 1944 wrote to memory of 1780 N/A C:\Users\Admin\AppData\Local\Temp\e2ff5ae0c4704ed86ffe70e708431e96135005df32870ee0dd4ee18c37ed2424.exe C:\Users\Admin\AppData\Local\Temp\e2ff5ae0c4704ed86ffe70e708431e96135005df32870ee0dd4ee18c37ed2424.exe
PID 1944 wrote to memory of 1780 N/A C:\Users\Admin\AppData\Local\Temp\e2ff5ae0c4704ed86ffe70e708431e96135005df32870ee0dd4ee18c37ed2424.exe C:\Users\Admin\AppData\Local\Temp\e2ff5ae0c4704ed86ffe70e708431e96135005df32870ee0dd4ee18c37ed2424.exe
PID 1944 wrote to memory of 1780 N/A C:\Users\Admin\AppData\Local\Temp\e2ff5ae0c4704ed86ffe70e708431e96135005df32870ee0dd4ee18c37ed2424.exe C:\Users\Admin\AppData\Local\Temp\e2ff5ae0c4704ed86ffe70e708431e96135005df32870ee0dd4ee18c37ed2424.exe
PID 1944 wrote to memory of 1780 N/A C:\Users\Admin\AppData\Local\Temp\e2ff5ae0c4704ed86ffe70e708431e96135005df32870ee0dd4ee18c37ed2424.exe C:\Users\Admin\AppData\Local\Temp\e2ff5ae0c4704ed86ffe70e708431e96135005df32870ee0dd4ee18c37ed2424.exe
PID 1944 wrote to memory of 1780 N/A C:\Users\Admin\AppData\Local\Temp\e2ff5ae0c4704ed86ffe70e708431e96135005df32870ee0dd4ee18c37ed2424.exe C:\Users\Admin\AppData\Local\Temp\e2ff5ae0c4704ed86ffe70e708431e96135005df32870ee0dd4ee18c37ed2424.exe
PID 1944 wrote to memory of 1780 N/A C:\Users\Admin\AppData\Local\Temp\e2ff5ae0c4704ed86ffe70e708431e96135005df32870ee0dd4ee18c37ed2424.exe C:\Users\Admin\AppData\Local\Temp\e2ff5ae0c4704ed86ffe70e708431e96135005df32870ee0dd4ee18c37ed2424.exe
PID 1944 wrote to memory of 1780 N/A C:\Users\Admin\AppData\Local\Temp\e2ff5ae0c4704ed86ffe70e708431e96135005df32870ee0dd4ee18c37ed2424.exe C:\Users\Admin\AppData\Local\Temp\e2ff5ae0c4704ed86ffe70e708431e96135005df32870ee0dd4ee18c37ed2424.exe
PID 1944 wrote to memory of 1780 N/A C:\Users\Admin\AppData\Local\Temp\e2ff5ae0c4704ed86ffe70e708431e96135005df32870ee0dd4ee18c37ed2424.exe C:\Users\Admin\AppData\Local\Temp\e2ff5ae0c4704ed86ffe70e708431e96135005df32870ee0dd4ee18c37ed2424.exe
PID 1780 wrote to memory of 768 N/A C:\Users\Admin\AppData\Local\Temp\e2ff5ae0c4704ed86ffe70e708431e96135005df32870ee0dd4ee18c37ed2424.exe C:\Windows\SysWOW64\WerFault.exe
PID 1780 wrote to memory of 768 N/A C:\Users\Admin\AppData\Local\Temp\e2ff5ae0c4704ed86ffe70e708431e96135005df32870ee0dd4ee18c37ed2424.exe C:\Windows\SysWOW64\WerFault.exe
PID 1780 wrote to memory of 768 N/A C:\Users\Admin\AppData\Local\Temp\e2ff5ae0c4704ed86ffe70e708431e96135005df32870ee0dd4ee18c37ed2424.exe C:\Windows\SysWOW64\WerFault.exe
PID 1780 wrote to memory of 768 N/A C:\Users\Admin\AppData\Local\Temp\e2ff5ae0c4704ed86ffe70e708431e96135005df32870ee0dd4ee18c37ed2424.exe C:\Windows\SysWOW64\WerFault.exe

Processes

C:\Users\Admin\AppData\Local\Temp\e2ff5ae0c4704ed86ffe70e708431e96135005df32870ee0dd4ee18c37ed2424.exe

"C:\Users\Admin\AppData\Local\Temp\e2ff5ae0c4704ed86ffe70e708431e96135005df32870ee0dd4ee18c37ed2424.exe"

C:\Users\Admin\AppData\Local\Temp\e2ff5ae0c4704ed86ffe70e708431e96135005df32870ee0dd4ee18c37ed2424.exe

"C:\Users\Admin\AppData\Local\Temp\e2ff5ae0c4704ed86ffe70e708431e96135005df32870ee0dd4ee18c37ed2424.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1780 -s 788

Network

Country Destination Domain Proto
US 8.8.8.8:53 4llion.com udp

Files

memory/1944-54-0x0000000000BA0000-0x0000000000CAC000-memory.dmp

memory/1944-55-0x00000000020B0000-0x000000000210A000-memory.dmp

memory/1944-56-0x0000000000990000-0x00000000009AC000-memory.dmp

memory/1780-57-0x0000000000400000-0x0000000000438000-memory.dmp

memory/1780-58-0x0000000000400000-0x0000000000438000-memory.dmp

memory/1780-60-0x0000000000400000-0x0000000000438000-memory.dmp

memory/1780-62-0x0000000000400000-0x0000000000438000-memory.dmp

memory/1780-64-0x0000000000400000-0x0000000000438000-memory.dmp

memory/1780-67-0x000000000040717B-mapping.dmp

memory/1780-66-0x0000000000400000-0x0000000000438000-memory.dmp

memory/1780-69-0x0000000000400000-0x0000000000438000-memory.dmp

memory/1780-70-0x00000000753C1000-0x00000000753C3000-memory.dmp

memory/1780-71-0x0000000000400000-0x0000000000438000-memory.dmp

memory/768-72-0x0000000000000000-mapping.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2022-04-15 12:33

Reported

2022-04-15 13:33

Platform

win10v2004-20220414-en

Max time kernel

55s

Max time network

77s

Command Line

"C:\Users\Admin\AppData\Local\Temp\e2ff5ae0c4704ed86ffe70e708431e96135005df32870ee0dd4ee18c37ed2424.exe"

Signatures

Oski

infostealer oski

Reads user/profile data of web browsers

spyware stealer

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\e2ff5ae0c4704ed86ffe70e708431e96135005df32870ee0dd4ee18c37ed2424.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1164 wrote to memory of 4332 N/A C:\Users\Admin\AppData\Local\Temp\e2ff5ae0c4704ed86ffe70e708431e96135005df32870ee0dd4ee18c37ed2424.exe C:\Users\Admin\AppData\Local\Temp\e2ff5ae0c4704ed86ffe70e708431e96135005df32870ee0dd4ee18c37ed2424.exe
PID 1164 wrote to memory of 4332 N/A C:\Users\Admin\AppData\Local\Temp\e2ff5ae0c4704ed86ffe70e708431e96135005df32870ee0dd4ee18c37ed2424.exe C:\Users\Admin\AppData\Local\Temp\e2ff5ae0c4704ed86ffe70e708431e96135005df32870ee0dd4ee18c37ed2424.exe
PID 1164 wrote to memory of 4332 N/A C:\Users\Admin\AppData\Local\Temp\e2ff5ae0c4704ed86ffe70e708431e96135005df32870ee0dd4ee18c37ed2424.exe C:\Users\Admin\AppData\Local\Temp\e2ff5ae0c4704ed86ffe70e708431e96135005df32870ee0dd4ee18c37ed2424.exe
PID 1164 wrote to memory of 4332 N/A C:\Users\Admin\AppData\Local\Temp\e2ff5ae0c4704ed86ffe70e708431e96135005df32870ee0dd4ee18c37ed2424.exe C:\Users\Admin\AppData\Local\Temp\e2ff5ae0c4704ed86ffe70e708431e96135005df32870ee0dd4ee18c37ed2424.exe
PID 1164 wrote to memory of 4332 N/A C:\Users\Admin\AppData\Local\Temp\e2ff5ae0c4704ed86ffe70e708431e96135005df32870ee0dd4ee18c37ed2424.exe C:\Users\Admin\AppData\Local\Temp\e2ff5ae0c4704ed86ffe70e708431e96135005df32870ee0dd4ee18c37ed2424.exe
PID 1164 wrote to memory of 4332 N/A C:\Users\Admin\AppData\Local\Temp\e2ff5ae0c4704ed86ffe70e708431e96135005df32870ee0dd4ee18c37ed2424.exe C:\Users\Admin\AppData\Local\Temp\e2ff5ae0c4704ed86ffe70e708431e96135005df32870ee0dd4ee18c37ed2424.exe
PID 1164 wrote to memory of 4332 N/A C:\Users\Admin\AppData\Local\Temp\e2ff5ae0c4704ed86ffe70e708431e96135005df32870ee0dd4ee18c37ed2424.exe C:\Users\Admin\AppData\Local\Temp\e2ff5ae0c4704ed86ffe70e708431e96135005df32870ee0dd4ee18c37ed2424.exe
PID 1164 wrote to memory of 4332 N/A C:\Users\Admin\AppData\Local\Temp\e2ff5ae0c4704ed86ffe70e708431e96135005df32870ee0dd4ee18c37ed2424.exe C:\Users\Admin\AppData\Local\Temp\e2ff5ae0c4704ed86ffe70e708431e96135005df32870ee0dd4ee18c37ed2424.exe
PID 1164 wrote to memory of 4332 N/A C:\Users\Admin\AppData\Local\Temp\e2ff5ae0c4704ed86ffe70e708431e96135005df32870ee0dd4ee18c37ed2424.exe C:\Users\Admin\AppData\Local\Temp\e2ff5ae0c4704ed86ffe70e708431e96135005df32870ee0dd4ee18c37ed2424.exe

Processes

C:\Users\Admin\AppData\Local\Temp\e2ff5ae0c4704ed86ffe70e708431e96135005df32870ee0dd4ee18c37ed2424.exe

"C:\Users\Admin\AppData\Local\Temp\e2ff5ae0c4704ed86ffe70e708431e96135005df32870ee0dd4ee18c37ed2424.exe"

C:\Users\Admin\AppData\Local\Temp\e2ff5ae0c4704ed86ffe70e708431e96135005df32870ee0dd4ee18c37ed2424.exe

"C:\Users\Admin\AppData\Local\Temp\e2ff5ae0c4704ed86ffe70e708431e96135005df32870ee0dd4ee18c37ed2424.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 384 -p 4332 -ip 4332

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4332 -s 1304

Network

Country Destination Domain Proto
BE 67.27.153.254:80 tcp
US 8.8.8.8:53 4llion.com udp
US 20.189.173.14:443 tcp
US 93.184.220.29:80 tcp
FR 2.18.109.224:443 tcp
US 104.18.25.243:80 tcp
NL 87.248.202.1:80 tcp
NL 87.248.202.1:80 tcp
NL 87.248.202.1:80 tcp

Files

memory/1164-130-0x0000000000470000-0x000000000057C000-memory.dmp

memory/1164-131-0x00000000053D0000-0x0000000005974000-memory.dmp

memory/1164-132-0x0000000004F20000-0x0000000004FB2000-memory.dmp

memory/1164-133-0x0000000004FD0000-0x0000000004FDA000-memory.dmp

memory/1164-134-0x0000000007540000-0x00000000075B6000-memory.dmp

memory/1164-135-0x0000000005390000-0x00000000053AE000-memory.dmp

memory/1164-136-0x00000000075C0000-0x0000000007626000-memory.dmp

memory/4332-137-0x0000000000000000-mapping.dmp

memory/4332-138-0x0000000000400000-0x0000000000438000-memory.dmp

memory/4332-139-0x0000000000400000-0x0000000000438000-memory.dmp

memory/4332-140-0x0000000000400000-0x0000000000438000-memory.dmp

memory/4332-141-0x0000000000400000-0x0000000000438000-memory.dmp