Malware Analysis Report

2025-01-03 04:58

Sample ID 220420-clkaqsggf5
Target f6174adcd26b3867f46222e388a2f28b17431383c0781ffc3172be106ecd54bf
SHA256 f6174adcd26b3867f46222e388a2f28b17431383c0781ffc3172be106ecd54bf
Tags
oski infostealer
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

f6174adcd26b3867f46222e388a2f28b17431383c0781ffc3172be106ecd54bf

Threat Level: Known bad

The file f6174adcd26b3867f46222e388a2f28b17431383c0781ffc3172be106ecd54bf was found to be: Known bad.

Malicious Activity Summary

oski infostealer

Oski

Suspicious use of SetThreadContext

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2022-04-20 02:09

Signatures

N/A

Analysis: behavioral2

Detonation Overview

Submitted

2022-04-20 02:09

Reported

2022-04-20 02:12

Platform

win10v2004-20220414-en

Max time kernel

169s

Max time network

181s

Command Line

"C:\Users\Admin\AppData\Local\Temp\f6174adcd26b3867f46222e388a2f28b17431383c0781ffc3172be106ecd54bf.exe"

Signatures

Oski

infostealer oski

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\f6174adcd26b3867f46222e388a2f28b17431383c0781ffc3172be106ecd54bf.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4360 wrote to memory of 824 N/A C:\Users\Admin\AppData\Local\Temp\f6174adcd26b3867f46222e388a2f28b17431383c0781ffc3172be106ecd54bf.exe C:\Users\Admin\AppData\Local\Temp\f6174adcd26b3867f46222e388a2f28b17431383c0781ffc3172be106ecd54bf.exe
PID 4360 wrote to memory of 824 N/A C:\Users\Admin\AppData\Local\Temp\f6174adcd26b3867f46222e388a2f28b17431383c0781ffc3172be106ecd54bf.exe C:\Users\Admin\AppData\Local\Temp\f6174adcd26b3867f46222e388a2f28b17431383c0781ffc3172be106ecd54bf.exe
PID 4360 wrote to memory of 824 N/A C:\Users\Admin\AppData\Local\Temp\f6174adcd26b3867f46222e388a2f28b17431383c0781ffc3172be106ecd54bf.exe C:\Users\Admin\AppData\Local\Temp\f6174adcd26b3867f46222e388a2f28b17431383c0781ffc3172be106ecd54bf.exe
PID 4360 wrote to memory of 824 N/A C:\Users\Admin\AppData\Local\Temp\f6174adcd26b3867f46222e388a2f28b17431383c0781ffc3172be106ecd54bf.exe C:\Users\Admin\AppData\Local\Temp\f6174adcd26b3867f46222e388a2f28b17431383c0781ffc3172be106ecd54bf.exe
PID 4360 wrote to memory of 824 N/A C:\Users\Admin\AppData\Local\Temp\f6174adcd26b3867f46222e388a2f28b17431383c0781ffc3172be106ecd54bf.exe C:\Users\Admin\AppData\Local\Temp\f6174adcd26b3867f46222e388a2f28b17431383c0781ffc3172be106ecd54bf.exe
PID 4360 wrote to memory of 824 N/A C:\Users\Admin\AppData\Local\Temp\f6174adcd26b3867f46222e388a2f28b17431383c0781ffc3172be106ecd54bf.exe C:\Users\Admin\AppData\Local\Temp\f6174adcd26b3867f46222e388a2f28b17431383c0781ffc3172be106ecd54bf.exe
PID 4360 wrote to memory of 824 N/A C:\Users\Admin\AppData\Local\Temp\f6174adcd26b3867f46222e388a2f28b17431383c0781ffc3172be106ecd54bf.exe C:\Users\Admin\AppData\Local\Temp\f6174adcd26b3867f46222e388a2f28b17431383c0781ffc3172be106ecd54bf.exe
PID 4360 wrote to memory of 824 N/A C:\Users\Admin\AppData\Local\Temp\f6174adcd26b3867f46222e388a2f28b17431383c0781ffc3172be106ecd54bf.exe C:\Users\Admin\AppData\Local\Temp\f6174adcd26b3867f46222e388a2f28b17431383c0781ffc3172be106ecd54bf.exe
PID 4360 wrote to memory of 824 N/A C:\Users\Admin\AppData\Local\Temp\f6174adcd26b3867f46222e388a2f28b17431383c0781ffc3172be106ecd54bf.exe C:\Users\Admin\AppData\Local\Temp\f6174adcd26b3867f46222e388a2f28b17431383c0781ffc3172be106ecd54bf.exe

Processes

C:\Users\Admin\AppData\Local\Temp\f6174adcd26b3867f46222e388a2f28b17431383c0781ffc3172be106ecd54bf.exe

"C:\Users\Admin\AppData\Local\Temp\f6174adcd26b3867f46222e388a2f28b17431383c0781ffc3172be106ecd54bf.exe"

C:\Users\Admin\AppData\Local\Temp\f6174adcd26b3867f46222e388a2f28b17431383c0781ffc3172be106ecd54bf.exe

"C:\Users\Admin\AppData\Local\Temp\f6174adcd26b3867f46222e388a2f28b17431383c0781ffc3172be106ecd54bf.exe"

Network

Country Destination Domain Proto
US 8.248.21.254:80 tcp
US 8.248.21.254:80 tcp
IE 13.69.239.72:443 tcp
US 8.248.21.254:80 tcp
US 8.248.21.254:80 tcp
US 8.248.21.254:80 tcp
NL 185.206.214.130:80 tcp

Files

memory/4360-130-0x0000000000370000-0x00000000003F2000-memory.dmp

memory/4360-131-0x0000000007A00000-0x0000000007FA4000-memory.dmp

memory/824-132-0x0000000000000000-mapping.dmp

memory/824-133-0x0000000000400000-0x0000000000438000-memory.dmp

memory/824-134-0x0000000000400000-0x0000000000438000-memory.dmp

memory/824-135-0x0000000000400000-0x0000000000438000-memory.dmp

memory/824-136-0x0000000000400000-0x0000000000438000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2022-04-20 02:09

Reported

2022-04-20 02:13

Platform

win7-20220414-en

Max time kernel

14s

Max time network

47s

Command Line

"C:\Users\Admin\AppData\Local\Temp\f6174adcd26b3867f46222e388a2f28b17431383c0781ffc3172be106ecd54bf.exe"

Signatures

N/A

Processes

C:\Users\Admin\AppData\Local\Temp\f6174adcd26b3867f46222e388a2f28b17431383c0781ffc3172be106ecd54bf.exe

"C:\Users\Admin\AppData\Local\Temp\f6174adcd26b3867f46222e388a2f28b17431383c0781ffc3172be106ecd54bf.exe"

Network

N/A

Files

memory/1348-54-0x0000000001250000-0x00000000012D2000-memory.dmp