Malware Analysis Report

2025-01-03 04:58

Sample ID 220422-aacemsdhbl
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 use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2022-04-22 00:00

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2022-04-22 00:00

Reported

2022-04-22 00:02

Platform

win7-20220414-en

Max time kernel

145s

Max time network

151s

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 600 set thread context of 940 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 600 wrote to memory of 940 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 600 wrote to memory of 940 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 600 wrote to memory of 940 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 600 wrote to memory of 940 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 600 wrote to memory of 940 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 600 wrote to memory of 940 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 600 wrote to memory of 940 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 600 wrote to memory of 940 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 600 wrote to memory of 940 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 600 wrote to memory of 940 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 940 wrote to memory of 992 N/A C:\Users\Admin\AppData\Local\Temp\FLP_5012_306_171.exe C:\Windows\SysWOW64\WerFault.exe
PID 940 wrote to memory of 992 N/A C:\Users\Admin\AppData\Local\Temp\FLP_5012_306_171.exe C:\Windows\SysWOW64\WerFault.exe
PID 940 wrote to memory of 992 N/A C:\Users\Admin\AppData\Local\Temp\FLP_5012_306_171.exe C:\Windows\SysWOW64\WerFault.exe
PID 940 wrote to memory of 992 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 940 -s 796

Network

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

Files

memory/600-54-0x0000000000800000-0x0000000000862000-memory.dmp

memory/600-55-0x00000000003E0000-0x00000000003EA000-memory.dmp

memory/600-56-0x00000000007E0000-0x0000000000806000-memory.dmp

memory/600-57-0x0000000075871000-0x0000000075873000-memory.dmp

memory/940-58-0x0000000000400000-0x0000000000438000-memory.dmp

memory/940-59-0x0000000000400000-0x0000000000438000-memory.dmp

memory/940-61-0x0000000000400000-0x0000000000438000-memory.dmp

memory/940-63-0x0000000000400000-0x0000000000438000-memory.dmp

memory/940-65-0x0000000000400000-0x0000000000438000-memory.dmp

memory/940-68-0x000000000040717B-mapping.dmp

memory/940-67-0x0000000000400000-0x0000000000438000-memory.dmp

memory/940-70-0x0000000000400000-0x0000000000438000-memory.dmp

memory/940-72-0x0000000000400000-0x0000000000438000-memory.dmp

memory/992-73-0x0000000000000000-mapping.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2022-04-22 00:00

Reported

2022-04-22 00:03

Platform

win10v2004-20220414-en

Max time kernel

138s

Max time network

142s

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 2572 set thread context of 3772 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 408 -p 3772 -ip 3772

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 3772 -s 1292

Network

Country Destination Domain Proto
FR 94.23.23.52:3333 tcp
US 8.238.111.254:80 tcp
US 8.238.111.254:80 tcp
US 93.184.220.29:80 tcp
IE 13.69.239.73:443 tcp
US 93.184.220.29:80 tcp
US 204.79.197.203:80 tcp
US 8.8.8.8:53 5azc.xyz udp
US 8.8.8.8:53 176.122.125.40.in-addr.arpa udp
US 8.238.111.254:80 tcp
US 8.238.111.254:80 tcp

Files

memory/2572-130-0x0000000000350000-0x00000000003B2000-memory.dmp

memory/2572-131-0x0000000004DD0000-0x0000000004E46000-memory.dmp

memory/2572-132-0x0000000004D30000-0x0000000004D4E000-memory.dmp

memory/3772-133-0x0000000000000000-mapping.dmp

memory/3772-134-0x0000000000400000-0x0000000000438000-memory.dmp

memory/3772-135-0x0000000000400000-0x0000000000438000-memory.dmp

memory/3772-136-0x0000000000400000-0x0000000000438000-memory.dmp

memory/3772-137-0x0000000000400000-0x0000000000438000-memory.dmp