Malware Analysis Report

2025-01-03 04:55

Sample ID 220427-cwfqasbebk
Target FLP_5012_306_171.exe
SHA256 7376932014797e4b7f5a1c4776d865e1ba03cba69d9811f11a449c188157c918
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: 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

7376932014797e4b7f5a1c4776d865e1ba03cba69d9811f11a449c188157c918

Threat Level: Known bad

The file FLP_5012_306_171.exe 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 behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2022-04-27 02:25

Signatures

N/A

Analysis: behavioral2

Detonation Overview

Submitted

2022-04-27 02:25

Reported

2022-04-27 02:27

Platform

win10v2004-20220414-en

Max time kernel

149s

Max time network

134s

Command Line

"C:\Users\Admin\AppData\Local\Temp\FLP_5012_306_171.exe"

Signatures

Oski

infostealer oski

Reads user/profile data of web browsers

spyware stealer

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 3844 set thread context of 4316 N/A C:\Users\Admin\AppData\Local\Temp\FLP_5012_306_171.exe C:\Users\Admin\AppData\Local\Temp\FLP_5012_306_171.exe

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\FLP_5012_306_171.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3844 wrote to memory of 392 N/A C:\Users\Admin\AppData\Local\Temp\FLP_5012_306_171.exe C:\Users\Admin\AppData\Local\Temp\FLP_5012_306_171.exe
PID 3844 wrote to memory of 392 N/A C:\Users\Admin\AppData\Local\Temp\FLP_5012_306_171.exe C:\Users\Admin\AppData\Local\Temp\FLP_5012_306_171.exe
PID 3844 wrote to memory of 392 N/A C:\Users\Admin\AppData\Local\Temp\FLP_5012_306_171.exe C:\Users\Admin\AppData\Local\Temp\FLP_5012_306_171.exe
PID 3844 wrote to memory of 3904 N/A C:\Users\Admin\AppData\Local\Temp\FLP_5012_306_171.exe C:\Users\Admin\AppData\Local\Temp\FLP_5012_306_171.exe
PID 3844 wrote to memory of 3904 N/A C:\Users\Admin\AppData\Local\Temp\FLP_5012_306_171.exe C:\Users\Admin\AppData\Local\Temp\FLP_5012_306_171.exe
PID 3844 wrote to memory of 3904 N/A C:\Users\Admin\AppData\Local\Temp\FLP_5012_306_171.exe C:\Users\Admin\AppData\Local\Temp\FLP_5012_306_171.exe
PID 3844 wrote to memory of 3740 N/A C:\Users\Admin\AppData\Local\Temp\FLP_5012_306_171.exe C:\Users\Admin\AppData\Local\Temp\FLP_5012_306_171.exe
PID 3844 wrote to memory of 3740 N/A C:\Users\Admin\AppData\Local\Temp\FLP_5012_306_171.exe C:\Users\Admin\AppData\Local\Temp\FLP_5012_306_171.exe
PID 3844 wrote to memory of 3740 N/A C:\Users\Admin\AppData\Local\Temp\FLP_5012_306_171.exe C:\Users\Admin\AppData\Local\Temp\FLP_5012_306_171.exe
PID 3844 wrote to memory of 4316 N/A C:\Users\Admin\AppData\Local\Temp\FLP_5012_306_171.exe C:\Users\Admin\AppData\Local\Temp\FLP_5012_306_171.exe
PID 3844 wrote to memory of 4316 N/A C:\Users\Admin\AppData\Local\Temp\FLP_5012_306_171.exe C:\Users\Admin\AppData\Local\Temp\FLP_5012_306_171.exe
PID 3844 wrote to memory of 4316 N/A C:\Users\Admin\AppData\Local\Temp\FLP_5012_306_171.exe C:\Users\Admin\AppData\Local\Temp\FLP_5012_306_171.exe
PID 3844 wrote to memory of 4316 N/A C:\Users\Admin\AppData\Local\Temp\FLP_5012_306_171.exe C:\Users\Admin\AppData\Local\Temp\FLP_5012_306_171.exe
PID 3844 wrote to memory of 4316 N/A C:\Users\Admin\AppData\Local\Temp\FLP_5012_306_171.exe C:\Users\Admin\AppData\Local\Temp\FLP_5012_306_171.exe
PID 3844 wrote to memory of 4316 N/A C:\Users\Admin\AppData\Local\Temp\FLP_5012_306_171.exe C:\Users\Admin\AppData\Local\Temp\FLP_5012_306_171.exe
PID 3844 wrote to memory of 4316 N/A C:\Users\Admin\AppData\Local\Temp\FLP_5012_306_171.exe C:\Users\Admin\AppData\Local\Temp\FLP_5012_306_171.exe
PID 3844 wrote to memory of 4316 N/A C:\Users\Admin\AppData\Local\Temp\FLP_5012_306_171.exe C:\Users\Admin\AppData\Local\Temp\FLP_5012_306_171.exe
PID 3844 wrote to memory of 4316 N/A C:\Users\Admin\AppData\Local\Temp\FLP_5012_306_171.exe C:\Users\Admin\AppData\Local\Temp\FLP_5012_306_171.exe

Processes

C:\Users\Admin\AppData\Local\Temp\FLP_5012_306_171.exe

"C:\Users\Admin\AppData\Local\Temp\FLP_5012_306_171.exe"

C:\Users\Admin\AppData\Local\Temp\FLP_5012_306_171.exe

C:\Users\Admin\AppData\Local\Temp\FLP_5012_306_171.exe

C:\Users\Admin\AppData\Local\Temp\FLP_5012_306_171.exe

C:\Users\Admin\AppData\Local\Temp\FLP_5012_306_171.exe

C:\Users\Admin\AppData\Local\Temp\FLP_5012_306_171.exe

C:\Users\Admin\AppData\Local\Temp\FLP_5012_306_171.exe

C:\Users\Admin\AppData\Local\Temp\FLP_5012_306_171.exe

C:\Users\Admin\AppData\Local\Temp\FLP_5012_306_171.exe

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 4316 -ip 4316

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4316 -s 1292

Network

Country Destination Domain Proto
US 93.184.220.29:80 tcp
US 209.197.3.8:80 tcp
US 20.189.173.3:443 tcp
US 8.247.210.254:80 tcp
US 8.247.210.254:80 tcp
US 8.8.8.8:53 5azc.xyz udp
US 209.197.3.8:80 tcp
US 209.197.3.8:80 tcp
BE 8.238.110.126:80 tcp

Files

memory/3844-130-0x0000000000BA0000-0x0000000000C02000-memory.dmp

memory/3844-131-0x00000000055D0000-0x0000000005646000-memory.dmp

memory/3844-132-0x0000000005580000-0x000000000559E000-memory.dmp

memory/392-133-0x0000000000000000-mapping.dmp

memory/3904-134-0x0000000000000000-mapping.dmp

memory/3740-135-0x0000000000000000-mapping.dmp

memory/4316-136-0x0000000000000000-mapping.dmp

memory/4316-137-0x0000000000400000-0x0000000000438000-memory.dmp

memory/4316-138-0x0000000000400000-0x0000000000438000-memory.dmp

memory/4316-139-0x0000000000400000-0x0000000000438000-memory.dmp

memory/4316-140-0x0000000000400000-0x0000000000438000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2022-04-27 02:25

Reported

2022-04-27 02:27

Platform

win7-20220414-en

Max time kernel

93s

Max time network

96s

Command Line

"C:\Users\Admin\AppData\Local\Temp\FLP_5012_306_171.exe"

Signatures

Oski

infostealer oski

Reads user/profile data of web browsers

spyware stealer

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 1868 set thread context of 1704 N/A C:\Users\Admin\AppData\Local\Temp\FLP_5012_306_171.exe C:\Users\Admin\AppData\Local\Temp\FLP_5012_306_171.exe

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\FLP_5012_306_171.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\FLP_5012_306_171.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1868 wrote to memory of 1704 N/A C:\Users\Admin\AppData\Local\Temp\FLP_5012_306_171.exe C:\Users\Admin\AppData\Local\Temp\FLP_5012_306_171.exe
PID 1868 wrote to memory of 1704 N/A C:\Users\Admin\AppData\Local\Temp\FLP_5012_306_171.exe C:\Users\Admin\AppData\Local\Temp\FLP_5012_306_171.exe
PID 1868 wrote to memory of 1704 N/A C:\Users\Admin\AppData\Local\Temp\FLP_5012_306_171.exe C:\Users\Admin\AppData\Local\Temp\FLP_5012_306_171.exe
PID 1868 wrote to memory of 1704 N/A C:\Users\Admin\AppData\Local\Temp\FLP_5012_306_171.exe C:\Users\Admin\AppData\Local\Temp\FLP_5012_306_171.exe
PID 1868 wrote to memory of 1704 N/A C:\Users\Admin\AppData\Local\Temp\FLP_5012_306_171.exe C:\Users\Admin\AppData\Local\Temp\FLP_5012_306_171.exe
PID 1868 wrote to memory of 1704 N/A C:\Users\Admin\AppData\Local\Temp\FLP_5012_306_171.exe C:\Users\Admin\AppData\Local\Temp\FLP_5012_306_171.exe
PID 1868 wrote to memory of 1704 N/A C:\Users\Admin\AppData\Local\Temp\FLP_5012_306_171.exe C:\Users\Admin\AppData\Local\Temp\FLP_5012_306_171.exe
PID 1868 wrote to memory of 1704 N/A C:\Users\Admin\AppData\Local\Temp\FLP_5012_306_171.exe C:\Users\Admin\AppData\Local\Temp\FLP_5012_306_171.exe
PID 1868 wrote to memory of 1704 N/A C:\Users\Admin\AppData\Local\Temp\FLP_5012_306_171.exe C:\Users\Admin\AppData\Local\Temp\FLP_5012_306_171.exe
PID 1868 wrote to memory of 1704 N/A C:\Users\Admin\AppData\Local\Temp\FLP_5012_306_171.exe C:\Users\Admin\AppData\Local\Temp\FLP_5012_306_171.exe
PID 1704 wrote to memory of 1956 N/A C:\Users\Admin\AppData\Local\Temp\FLP_5012_306_171.exe C:\Windows\SysWOW64\WerFault.exe
PID 1704 wrote to memory of 1956 N/A C:\Users\Admin\AppData\Local\Temp\FLP_5012_306_171.exe C:\Windows\SysWOW64\WerFault.exe
PID 1704 wrote to memory of 1956 N/A C:\Users\Admin\AppData\Local\Temp\FLP_5012_306_171.exe C:\Windows\SysWOW64\WerFault.exe
PID 1704 wrote to memory of 1956 N/A C:\Users\Admin\AppData\Local\Temp\FLP_5012_306_171.exe C:\Windows\SysWOW64\WerFault.exe

Processes

C:\Users\Admin\AppData\Local\Temp\FLP_5012_306_171.exe

"C:\Users\Admin\AppData\Local\Temp\FLP_5012_306_171.exe"

C:\Users\Admin\AppData\Local\Temp\FLP_5012_306_171.exe

C:\Users\Admin\AppData\Local\Temp\FLP_5012_306_171.exe

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1704 -s 792

Network

Country Destination Domain Proto
US 8.8.8.8:53 5azc.xyz udp

Files

memory/1868-54-0x0000000000E10000-0x0000000000E72000-memory.dmp

memory/1868-55-0x00000000001F0000-0x00000000001FA000-memory.dmp

memory/1868-56-0x0000000000260000-0x0000000000286000-memory.dmp

memory/1868-57-0x0000000075541000-0x0000000075543000-memory.dmp

memory/1704-58-0x0000000000400000-0x0000000000438000-memory.dmp

memory/1704-59-0x0000000000400000-0x0000000000438000-memory.dmp

memory/1704-61-0x0000000000400000-0x0000000000438000-memory.dmp

memory/1704-63-0x0000000000400000-0x0000000000438000-memory.dmp

memory/1704-65-0x0000000000400000-0x0000000000438000-memory.dmp

memory/1704-68-0x000000000040717B-mapping.dmp

memory/1704-67-0x0000000000400000-0x0000000000438000-memory.dmp

memory/1704-70-0x0000000000400000-0x0000000000438000-memory.dmp

memory/1704-72-0x0000000000400000-0x0000000000438000-memory.dmp

memory/1956-73-0x0000000000000000-mapping.dmp