Malware Analysis Report

2025-01-03 04:56

Sample ID 220404-dym3tshfd2
Target FLP_5012_306_171.exe
SHA256 7376932014797e4b7f5a1c4776d865e1ba03cba69d9811f11a449c188157c918
Tags
oski infostealer
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

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

Oski

Suspicious use of SetThreadContext

Program crash

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2022-04-04 03:25

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2022-04-04 03:25

Reported

2022-04-04 04:00

Platform

win7-20220331-en

Max time kernel

57s

Max time network

45s

Command Line

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

Signatures

Oski

infostealer oski

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 1220 set thread context of 1068 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 1220 wrote to memory of 2020 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 1220 wrote to memory of 2020 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 1220 wrote to memory of 2020 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 1220 wrote to memory of 2020 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 1220 wrote to memory of 2036 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 1220 wrote to memory of 2036 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 1220 wrote to memory of 2036 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 1220 wrote to memory of 2036 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 1220 wrote to memory of 1068 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 1220 wrote to memory of 1068 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 1220 wrote to memory of 1068 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 1220 wrote to memory of 1068 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 1220 wrote to memory of 1068 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 1220 wrote to memory of 1068 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 1220 wrote to memory of 1068 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 1220 wrote to memory of 1068 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 1220 wrote to memory of 1068 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 1220 wrote to memory of 1068 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 1068 wrote to memory of 956 N/A C:\Users\Admin\AppData\Local\Temp\FLP_5012_306_171.exe C:\Windows\SysWOW64\WerFault.exe
PID 1068 wrote to memory of 956 N/A C:\Users\Admin\AppData\Local\Temp\FLP_5012_306_171.exe C:\Windows\SysWOW64\WerFault.exe
PID 1068 wrote to memory of 956 N/A C:\Users\Admin\AppData\Local\Temp\FLP_5012_306_171.exe C:\Windows\SysWOW64\WerFault.exe
PID 1068 wrote to memory of 956 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:\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 1068 -s 112

Network

N/A

Files

memory/1220-54-0x0000000000200000-0x0000000000262000-memory.dmp

memory/1220-55-0x00000000001E0000-0x00000000001EA000-memory.dmp

memory/1220-56-0x0000000000330000-0x0000000000356000-memory.dmp

memory/1068-57-0x0000000000400000-0x0000000000438000-memory.dmp

memory/1068-58-0x0000000000400000-0x0000000000438000-memory.dmp

memory/1068-60-0x0000000000400000-0x0000000000438000-memory.dmp

memory/1068-62-0x0000000000400000-0x0000000000438000-memory.dmp

memory/1068-64-0x0000000000400000-0x0000000000438000-memory.dmp

memory/1068-67-0x000000000040717B-mapping.dmp

memory/1068-66-0x0000000000400000-0x0000000000438000-memory.dmp

memory/1068-69-0x0000000000400000-0x0000000000438000-memory.dmp

memory/956-70-0x0000000000000000-mapping.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2022-04-04 03:25

Reported

2022-04-04 04:00

Platform

win10v2004-20220331-en

Max time kernel

144s

Max time network

148s

Command Line

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

Signatures

Oski

infostealer oski

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 4644 set thread context of 3640 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 4644 wrote to memory of 748 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 4644 wrote to memory of 748 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 4644 wrote to memory of 748 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 4644 wrote to memory of 3640 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 4644 wrote to memory of 3640 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 4644 wrote to memory of 3640 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 4644 wrote to memory of 3640 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 4644 wrote to memory of 3640 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 4644 wrote to memory of 3640 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 4644 wrote to memory of 3640 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 4644 wrote to memory of 3640 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 4644 wrote to memory of 3640 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:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 3640 -ip 3640

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 3640 -s 236

Network

Country Destination Domain Proto
US 40.125.122.151:443 tcp
FI 62.115.252.112:80 tcp
US 20.189.173.11:443 tcp
US 8.8.8.8:53 96.108.152.52.in-addr.arpa udp
SE 178.79.212.129:80 tcp
SE 178.79.212.129:80 tcp
SE 178.79.212.129:80 tcp

Files

memory/4644-124-0x0000000000D70000-0x0000000000DD2000-memory.dmp

memory/4644-125-0x0000000005780000-0x00000000057F6000-memory.dmp

memory/4644-126-0x0000000005740000-0x000000000575E000-memory.dmp

memory/748-127-0x0000000000000000-mapping.dmp

memory/3640-128-0x0000000000000000-mapping.dmp

memory/3640-129-0x0000000000400000-0x0000000000438000-memory.dmp

memory/3640-130-0x0000000000400000-0x0000000000438000-memory.dmp

memory/3640-131-0x0000000000400000-0x0000000000438000-memory.dmp