Malware Analysis Report

2025-01-03 04:58

Sample ID 220416-gb4nvafcc8
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: 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

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

2022-04-16 05:38

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2022-04-16 05:38

Reported

2022-04-16 05:45

Platform

win7-20220414-en

Max time kernel

91s

Max time network

95s

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 1672 set thread context of 1748 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 1672 wrote to memory of 1748 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 1672 wrote to memory of 1748 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 1672 wrote to memory of 1748 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 1672 wrote to memory of 1748 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 1672 wrote to memory of 1748 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 1672 wrote to memory of 1748 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 1672 wrote to memory of 1748 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 1672 wrote to memory of 1748 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 1672 wrote to memory of 1748 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 1672 wrote to memory of 1748 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 1748 wrote to memory of 2004 N/A C:\Users\Admin\AppData\Local\Temp\FLP_5012_306_171.exe C:\Windows\SysWOW64\WerFault.exe
PID 1748 wrote to memory of 2004 N/A C:\Users\Admin\AppData\Local\Temp\FLP_5012_306_171.exe C:\Windows\SysWOW64\WerFault.exe
PID 1748 wrote to memory of 2004 N/A C:\Users\Admin\AppData\Local\Temp\FLP_5012_306_171.exe C:\Windows\SysWOW64\WerFault.exe
PID 1748 wrote to memory of 2004 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 1748 -s 788

Network

Country Destination Domain Proto
US 93.184.220.29:80 tcp
US 204.79.197.200:443 tcp
US 8.8.8.8:53 5azc.xyz udp

Files

memory/1672-54-0x0000000000D70000-0x0000000000DD2000-memory.dmp

memory/1672-55-0x00000000003A0000-0x00000000003AA000-memory.dmp

memory/1672-56-0x00000000004D0000-0x00000000004F6000-memory.dmp

memory/1672-57-0x0000000075B61000-0x0000000075B63000-memory.dmp

memory/1748-58-0x0000000000400000-0x0000000000438000-memory.dmp

memory/1748-59-0x0000000000400000-0x0000000000438000-memory.dmp

memory/1748-61-0x0000000000400000-0x0000000000438000-memory.dmp

memory/1748-63-0x0000000000400000-0x0000000000438000-memory.dmp

memory/1748-65-0x0000000000400000-0x0000000000438000-memory.dmp

memory/1748-67-0x0000000000400000-0x0000000000438000-memory.dmp

memory/1748-68-0x000000000040717B-mapping.dmp

memory/1748-70-0x0000000000400000-0x0000000000438000-memory.dmp

memory/1748-72-0x0000000000400000-0x0000000000438000-memory.dmp

memory/2004-73-0x0000000000000000-mapping.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2022-04-16 05:38

Reported

2022-04-16 05:45

Platform

win10v2004-20220414-en

Max time kernel

61s

Max time network

75s

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 3176 set thread context of 4776 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
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

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 -pss -s 184 -p 4776 -ip 4776

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4776 -s 1308

Network

Country Destination Domain Proto
US 8.253.135.241:80 tcp
US 20.189.173.12:443 tcp
NL 104.110.191.140:80 tcp
NL 104.110.191.140:80 tcp
NL 178.79.208.1:80 tcp
US 8.8.8.8:53 5azc.xyz udp

Files

memory/3176-130-0x00000000000E0000-0x0000000000142000-memory.dmp

memory/3176-131-0x0000000004B70000-0x0000000004BE6000-memory.dmp

memory/3176-132-0x0000000004AB0000-0x0000000004ACE000-memory.dmp

memory/4776-133-0x0000000000000000-mapping.dmp

memory/4776-134-0x0000000000400000-0x0000000000438000-memory.dmp

memory/4776-135-0x0000000000400000-0x0000000000438000-memory.dmp

memory/4776-136-0x0000000000400000-0x0000000000438000-memory.dmp

memory/4776-137-0x0000000000400000-0x0000000000438000-memory.dmp