Malware Analysis Report

2024-09-22 21:45

Sample ID 240304-ba9ktadd5y
Target b0d480d34cdcbaf1e8514e9ae6ff17c8
SHA256 64317045686f2cc6fca84d4b469a5e65f7a48ba8cd2a55817c8040833f42ebf8
Tags
oski infostealer spyware stealer
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK Matrix

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

64317045686f2cc6fca84d4b469a5e65f7a48ba8cd2a55817c8040833f42ebf8

Threat Level: Known bad

The file b0d480d34cdcbaf1e8514e9ae6ff17c8 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

Unsigned PE

Program crash

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

MITRE ATT&CK Matrix V13

Analysis: static1

Detonation Overview

Reported

2024-03-04 00:57

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-03-04 00:57

Reported

2024-03-04 01:00

Platform

win7-20240221-en

Max time kernel

122s

Max time network

122s

Command Line

"C:\Users\Admin\AppData\Local\Temp\b0d480d34cdcbaf1e8514e9ae6ff17c8.exe"

Signatures

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\b0d480d34cdcbaf1e8514e9ae6ff17c8.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2988 wrote to memory of 2500 N/A C:\Users\Admin\AppData\Local\Temp\b0d480d34cdcbaf1e8514e9ae6ff17c8.exe C:\Users\Admin\AppData\Local\Temp\b0d480d34cdcbaf1e8514e9ae6ff17c8.exe
PID 2988 wrote to memory of 2500 N/A C:\Users\Admin\AppData\Local\Temp\b0d480d34cdcbaf1e8514e9ae6ff17c8.exe C:\Users\Admin\AppData\Local\Temp\b0d480d34cdcbaf1e8514e9ae6ff17c8.exe
PID 2988 wrote to memory of 2500 N/A C:\Users\Admin\AppData\Local\Temp\b0d480d34cdcbaf1e8514e9ae6ff17c8.exe C:\Users\Admin\AppData\Local\Temp\b0d480d34cdcbaf1e8514e9ae6ff17c8.exe
PID 2988 wrote to memory of 2500 N/A C:\Users\Admin\AppData\Local\Temp\b0d480d34cdcbaf1e8514e9ae6ff17c8.exe C:\Users\Admin\AppData\Local\Temp\b0d480d34cdcbaf1e8514e9ae6ff17c8.exe
PID 2988 wrote to memory of 2596 N/A C:\Users\Admin\AppData\Local\Temp\b0d480d34cdcbaf1e8514e9ae6ff17c8.exe C:\Users\Admin\AppData\Local\Temp\b0d480d34cdcbaf1e8514e9ae6ff17c8.exe
PID 2988 wrote to memory of 2596 N/A C:\Users\Admin\AppData\Local\Temp\b0d480d34cdcbaf1e8514e9ae6ff17c8.exe C:\Users\Admin\AppData\Local\Temp\b0d480d34cdcbaf1e8514e9ae6ff17c8.exe
PID 2988 wrote to memory of 2596 N/A C:\Users\Admin\AppData\Local\Temp\b0d480d34cdcbaf1e8514e9ae6ff17c8.exe C:\Users\Admin\AppData\Local\Temp\b0d480d34cdcbaf1e8514e9ae6ff17c8.exe
PID 2988 wrote to memory of 2596 N/A C:\Users\Admin\AppData\Local\Temp\b0d480d34cdcbaf1e8514e9ae6ff17c8.exe C:\Users\Admin\AppData\Local\Temp\b0d480d34cdcbaf1e8514e9ae6ff17c8.exe
PID 2988 wrote to memory of 2884 N/A C:\Users\Admin\AppData\Local\Temp\b0d480d34cdcbaf1e8514e9ae6ff17c8.exe C:\Users\Admin\AppData\Local\Temp\b0d480d34cdcbaf1e8514e9ae6ff17c8.exe
PID 2988 wrote to memory of 2884 N/A C:\Users\Admin\AppData\Local\Temp\b0d480d34cdcbaf1e8514e9ae6ff17c8.exe C:\Users\Admin\AppData\Local\Temp\b0d480d34cdcbaf1e8514e9ae6ff17c8.exe
PID 2988 wrote to memory of 2884 N/A C:\Users\Admin\AppData\Local\Temp\b0d480d34cdcbaf1e8514e9ae6ff17c8.exe C:\Users\Admin\AppData\Local\Temp\b0d480d34cdcbaf1e8514e9ae6ff17c8.exe
PID 2988 wrote to memory of 2884 N/A C:\Users\Admin\AppData\Local\Temp\b0d480d34cdcbaf1e8514e9ae6ff17c8.exe C:\Users\Admin\AppData\Local\Temp\b0d480d34cdcbaf1e8514e9ae6ff17c8.exe
PID 2988 wrote to memory of 2964 N/A C:\Users\Admin\AppData\Local\Temp\b0d480d34cdcbaf1e8514e9ae6ff17c8.exe C:\Users\Admin\AppData\Local\Temp\b0d480d34cdcbaf1e8514e9ae6ff17c8.exe
PID 2988 wrote to memory of 2964 N/A C:\Users\Admin\AppData\Local\Temp\b0d480d34cdcbaf1e8514e9ae6ff17c8.exe C:\Users\Admin\AppData\Local\Temp\b0d480d34cdcbaf1e8514e9ae6ff17c8.exe
PID 2988 wrote to memory of 2964 N/A C:\Users\Admin\AppData\Local\Temp\b0d480d34cdcbaf1e8514e9ae6ff17c8.exe C:\Users\Admin\AppData\Local\Temp\b0d480d34cdcbaf1e8514e9ae6ff17c8.exe
PID 2988 wrote to memory of 2964 N/A C:\Users\Admin\AppData\Local\Temp\b0d480d34cdcbaf1e8514e9ae6ff17c8.exe C:\Users\Admin\AppData\Local\Temp\b0d480d34cdcbaf1e8514e9ae6ff17c8.exe
PID 2988 wrote to memory of 2888 N/A C:\Users\Admin\AppData\Local\Temp\b0d480d34cdcbaf1e8514e9ae6ff17c8.exe C:\Users\Admin\AppData\Local\Temp\b0d480d34cdcbaf1e8514e9ae6ff17c8.exe
PID 2988 wrote to memory of 2888 N/A C:\Users\Admin\AppData\Local\Temp\b0d480d34cdcbaf1e8514e9ae6ff17c8.exe C:\Users\Admin\AppData\Local\Temp\b0d480d34cdcbaf1e8514e9ae6ff17c8.exe
PID 2988 wrote to memory of 2888 N/A C:\Users\Admin\AppData\Local\Temp\b0d480d34cdcbaf1e8514e9ae6ff17c8.exe C:\Users\Admin\AppData\Local\Temp\b0d480d34cdcbaf1e8514e9ae6ff17c8.exe
PID 2988 wrote to memory of 2888 N/A C:\Users\Admin\AppData\Local\Temp\b0d480d34cdcbaf1e8514e9ae6ff17c8.exe C:\Users\Admin\AppData\Local\Temp\b0d480d34cdcbaf1e8514e9ae6ff17c8.exe

Processes

C:\Users\Admin\AppData\Local\Temp\b0d480d34cdcbaf1e8514e9ae6ff17c8.exe

"C:\Users\Admin\AppData\Local\Temp\b0d480d34cdcbaf1e8514e9ae6ff17c8.exe"

C:\Users\Admin\AppData\Local\Temp\b0d480d34cdcbaf1e8514e9ae6ff17c8.exe

"C:\Users\Admin\AppData\Local\Temp\b0d480d34cdcbaf1e8514e9ae6ff17c8.exe"

C:\Users\Admin\AppData\Local\Temp\b0d480d34cdcbaf1e8514e9ae6ff17c8.exe

"C:\Users\Admin\AppData\Local\Temp\b0d480d34cdcbaf1e8514e9ae6ff17c8.exe"

C:\Users\Admin\AppData\Local\Temp\b0d480d34cdcbaf1e8514e9ae6ff17c8.exe

"C:\Users\Admin\AppData\Local\Temp\b0d480d34cdcbaf1e8514e9ae6ff17c8.exe"

C:\Users\Admin\AppData\Local\Temp\b0d480d34cdcbaf1e8514e9ae6ff17c8.exe

"C:\Users\Admin\AppData\Local\Temp\b0d480d34cdcbaf1e8514e9ae6ff17c8.exe"

C:\Users\Admin\AppData\Local\Temp\b0d480d34cdcbaf1e8514e9ae6ff17c8.exe

"C:\Users\Admin\AppData\Local\Temp\b0d480d34cdcbaf1e8514e9ae6ff17c8.exe"

Network

N/A

Files

memory/2988-0-0x00000000003F0000-0x00000000004AE000-memory.dmp

memory/2988-1-0x0000000074B30000-0x000000007521E000-memory.dmp

memory/2988-2-0x0000000004E40000-0x0000000004E80000-memory.dmp

memory/2988-3-0x0000000000640000-0x000000000065A000-memory.dmp

memory/2988-4-0x0000000074B30000-0x000000007521E000-memory.dmp

memory/2988-5-0x0000000004E40000-0x0000000004E80000-memory.dmp

memory/2988-6-0x0000000007E90000-0x0000000007F30000-memory.dmp

memory/2988-7-0x00000000020E0000-0x0000000002118000-memory.dmp

memory/2988-8-0x0000000074B30000-0x000000007521E000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-03-04 00:57

Reported

2024-03-04 01:00

Platform

win10v2004-20240226-en

Max time kernel

149s

Max time network

151s

Command Line

"C:\Users\Admin\AppData\Local\Temp\b0d480d34cdcbaf1e8514e9ae6ff17c8.exe"

Signatures

Oski

infostealer oski

Reads user/profile data of web browsers

spyware stealer

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 692 set thread context of 2932 N/A C:\Users\Admin\AppData\Local\Temp\b0d480d34cdcbaf1e8514e9ae6ff17c8.exe C:\Users\Admin\AppData\Local\Temp\b0d480d34cdcbaf1e8514e9ae6ff17c8.exe

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 692 wrote to memory of 2932 N/A C:\Users\Admin\AppData\Local\Temp\b0d480d34cdcbaf1e8514e9ae6ff17c8.exe C:\Users\Admin\AppData\Local\Temp\b0d480d34cdcbaf1e8514e9ae6ff17c8.exe
PID 692 wrote to memory of 2932 N/A C:\Users\Admin\AppData\Local\Temp\b0d480d34cdcbaf1e8514e9ae6ff17c8.exe C:\Users\Admin\AppData\Local\Temp\b0d480d34cdcbaf1e8514e9ae6ff17c8.exe
PID 692 wrote to memory of 2932 N/A C:\Users\Admin\AppData\Local\Temp\b0d480d34cdcbaf1e8514e9ae6ff17c8.exe C:\Users\Admin\AppData\Local\Temp\b0d480d34cdcbaf1e8514e9ae6ff17c8.exe
PID 692 wrote to memory of 2932 N/A C:\Users\Admin\AppData\Local\Temp\b0d480d34cdcbaf1e8514e9ae6ff17c8.exe C:\Users\Admin\AppData\Local\Temp\b0d480d34cdcbaf1e8514e9ae6ff17c8.exe
PID 692 wrote to memory of 2932 N/A C:\Users\Admin\AppData\Local\Temp\b0d480d34cdcbaf1e8514e9ae6ff17c8.exe C:\Users\Admin\AppData\Local\Temp\b0d480d34cdcbaf1e8514e9ae6ff17c8.exe
PID 692 wrote to memory of 2932 N/A C:\Users\Admin\AppData\Local\Temp\b0d480d34cdcbaf1e8514e9ae6ff17c8.exe C:\Users\Admin\AppData\Local\Temp\b0d480d34cdcbaf1e8514e9ae6ff17c8.exe
PID 692 wrote to memory of 2932 N/A C:\Users\Admin\AppData\Local\Temp\b0d480d34cdcbaf1e8514e9ae6ff17c8.exe C:\Users\Admin\AppData\Local\Temp\b0d480d34cdcbaf1e8514e9ae6ff17c8.exe
PID 692 wrote to memory of 2932 N/A C:\Users\Admin\AppData\Local\Temp\b0d480d34cdcbaf1e8514e9ae6ff17c8.exe C:\Users\Admin\AppData\Local\Temp\b0d480d34cdcbaf1e8514e9ae6ff17c8.exe
PID 692 wrote to memory of 2932 N/A C:\Users\Admin\AppData\Local\Temp\b0d480d34cdcbaf1e8514e9ae6ff17c8.exe C:\Users\Admin\AppData\Local\Temp\b0d480d34cdcbaf1e8514e9ae6ff17c8.exe

Processes

C:\Users\Admin\AppData\Local\Temp\b0d480d34cdcbaf1e8514e9ae6ff17c8.exe

"C:\Users\Admin\AppData\Local\Temp\b0d480d34cdcbaf1e8514e9ae6ff17c8.exe"

C:\Users\Admin\AppData\Local\Temp\b0d480d34cdcbaf1e8514e9ae6ff17c8.exe

"C:\Users\Admin\AppData\Local\Temp\b0d480d34cdcbaf1e8514e9ae6ff17c8.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 208 -p 2932 -ip 2932

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2932 -s 1288

Network

Country Destination Domain Proto
US 8.8.8.8:53 73.31.126.40.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 9.228.82.20.in-addr.arpa udp
US 8.8.8.8:53 200.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 55.36.223.20.in-addr.arpa udp
US 8.8.8.8:53 41.110.16.96.in-addr.arpa udp
US 8.8.8.8:53 26.165.165.52.in-addr.arpa udp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
US 8.8.8.8:53 18.134.221.88.in-addr.arpa udp
US 8.8.8.8:53 180.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 irkark.xyz udp
US 8.8.8.8:53 29.243.111.52.in-addr.arpa udp
US 8.8.8.8:53 173.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 10.173.189.20.in-addr.arpa udp

Files

memory/692-0-0x0000000000690000-0x000000000074E000-memory.dmp

memory/692-1-0x00000000749C0000-0x0000000075170000-memory.dmp

memory/692-2-0x00000000050D0000-0x000000000516C000-memory.dmp

memory/692-3-0x0000000005760000-0x0000000005D04000-memory.dmp

memory/692-4-0x0000000005250000-0x00000000052E2000-memory.dmp

memory/692-5-0x0000000005230000-0x0000000005240000-memory.dmp

memory/692-6-0x00000000051F0000-0x00000000051FA000-memory.dmp

memory/692-7-0x0000000005440000-0x0000000005496000-memory.dmp

memory/692-8-0x0000000007C60000-0x0000000007C7A000-memory.dmp

memory/692-9-0x00000000749C0000-0x0000000075170000-memory.dmp

memory/692-10-0x0000000005230000-0x0000000005240000-memory.dmp

memory/692-11-0x0000000007EE0000-0x0000000007F80000-memory.dmp

memory/692-12-0x0000000007CE0000-0x0000000007D18000-memory.dmp

memory/2932-13-0x0000000000400000-0x0000000000438000-memory.dmp

memory/2932-15-0x0000000000400000-0x0000000000438000-memory.dmp

memory/2932-16-0x0000000000400000-0x0000000000438000-memory.dmp

memory/2932-18-0x0000000000400000-0x0000000000438000-memory.dmp

memory/692-17-0x00000000749C0000-0x0000000075170000-memory.dmp

memory/2932-21-0x0000000000400000-0x0000000000438000-memory.dmp