Analysis Overview
SHA256
83b9d5a3604bc5d23b2a48f211922b2054c64a75e271ff335a2ce8012a8a5ebc
Threat Level: Known bad
The file d386560e46981c478094c1b87620185cea043810e589484f800462f5daa14935.zip was found to be: Known bad.
Malicious Activity Summary
Oski
suricata: ET MALWARE Vidar/Arkei/Megumin/Oski Stealer HTTP POST Pattern
Reads user/profile data of web browsers
Adds Run key to start application
Suspicious use of SetThreadContext
Program crash
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V6
Analysis: static1
Detonation Overview
Reported
2022-04-26 15:00
Signatures
Analysis: behavioral1
Detonation Overview
Submitted
2022-04-26 15:00
Reported
2022-04-26 15:02
Platform
win7-20220414-en
Max time kernel
41s
Max time network
44s
Command Line
Signatures
Oski
suricata: ET MALWARE Vidar/Arkei/Megumin/Oski Stealer HTTP POST Pattern
Reads user/profile data of web browsers
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce\SgBSNdRiPF = "C:\\Users\\Admin\\AppData\\Roaming\\KmRwXJEbJF\\LgFMZzjLJE.exe" | C:\Users\Admin\AppData\Local\Temp\d386560e46981c478094c1b87620185cea043810e589484f800462f5daa14935.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 2008 set thread context of 1996 | N/A | C:\Users\Admin\AppData\Local\Temp\d386560e46981c478094c1b87620185cea043810e589484f800462f5daa14935.exe | C:\Users\Admin\AppData\Local\Temp\d386560e46981c478094c1b87620185cea043810e589484f800462f5daa14935.exe |
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Users\Admin\AppData\Local\Temp\d386560e46981c478094c1b87620185cea043810e589484f800462f5daa14935.exe |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\d386560e46981c478094c1b87620185cea043810e589484f800462f5daa14935.exe
"C:\Users\Admin\AppData\Local\Temp\d386560e46981c478094c1b87620185cea043810e589484f800462f5daa14935.exe"
C:\Users\Admin\AppData\Local\Temp\d386560e46981c478094c1b87620185cea043810e589484f800462f5daa14935.exe
"C:\Users\Admin\AppData\Local\Temp\d386560e46981c478094c1b87620185cea043810e589484f800462f5daa14935.exe"
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1996 -s 764
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | nutrileague.com | udp |
| US | 162.241.85.228:80 | nutrileague.com | tcp |
Files
memory/2008-54-0x0000000001230000-0x000000000127E000-memory.dmp
memory/2008-55-0x0000000076191000-0x0000000076193000-memory.dmp
memory/2008-56-0x0000000000210000-0x000000000021A000-memory.dmp
memory/1996-57-0x0000000000400000-0x0000000000438000-memory.dmp
memory/1996-58-0x0000000000400000-0x0000000000438000-memory.dmp
memory/1996-60-0x0000000000400000-0x0000000000438000-memory.dmp
memory/1996-62-0x0000000000400000-0x0000000000438000-memory.dmp
memory/1996-64-0x0000000000400000-0x0000000000438000-memory.dmp
memory/1996-66-0x0000000000400000-0x0000000000438000-memory.dmp
memory/1996-67-0x000000000040717B-mapping.dmp
memory/1996-69-0x0000000000400000-0x0000000000438000-memory.dmp
memory/1996-71-0x0000000000400000-0x0000000000438000-memory.dmp
memory/2028-72-0x0000000000000000-mapping.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2022-04-26 15:00
Reported
2022-04-26 15:02
Platform
win10v2004-20220414-en
Max time kernel
141s
Max time network
139s
Command Line
Signatures
Oski
suricata: ET MALWARE Vidar/Arkei/Megumin/Oski Stealer HTTP POST Pattern
Reads user/profile data of web browsers
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\SgBSNdRiPF = "C:\\Users\\Admin\\AppData\\Roaming\\KmRwXJEbJF\\LgFMZzjLJE.exe" | C:\Users\Admin\AppData\Local\Temp\d386560e46981c478094c1b87620185cea043810e589484f800462f5daa14935.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 3520 set thread context of 4324 | N/A | C:\Users\Admin\AppData\Local\Temp\d386560e46981c478094c1b87620185cea043810e589484f800462f5daa14935.exe | C:\Users\Admin\AppData\Local\Temp\d386560e46981c478094c1b87620185cea043810e589484f800462f5daa14935.exe |
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Users\Admin\AppData\Local\Temp\d386560e46981c478094c1b87620185cea043810e589484f800462f5daa14935.exe |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\d386560e46981c478094c1b87620185cea043810e589484f800462f5daa14935.exe
"C:\Users\Admin\AppData\Local\Temp\d386560e46981c478094c1b87620185cea043810e589484f800462f5daa14935.exe"
C:\Users\Admin\AppData\Local\Temp\d386560e46981c478094c1b87620185cea043810e589484f800462f5daa14935.exe
"C:\Users\Admin\AppData\Local\Temp\d386560e46981c478094c1b87620185cea043810e589484f800462f5daa14935.exe"
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 4324 -ip 4324
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4324 -s 1324
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | nutrileague.com | udp |
| US | 162.241.85.228:80 | nutrileague.com | tcp |
| US | 209.197.3.8:80 | tcp | |
| US | 209.197.3.8:80 | tcp | |
| US | 209.197.3.8:80 | tcp |
Files
memory/3520-130-0x0000000000670000-0x00000000006BE000-memory.dmp
memory/3520-131-0x00000000055B0000-0x0000000005B54000-memory.dmp
memory/3520-132-0x00000000050A0000-0x0000000005132000-memory.dmp
memory/3520-133-0x00000000051E0000-0x000000000527C000-memory.dmp
memory/4324-134-0x0000000000000000-mapping.dmp
memory/4324-135-0x0000000000400000-0x0000000000438000-memory.dmp
memory/4324-136-0x0000000000400000-0x0000000000438000-memory.dmp
memory/4324-137-0x0000000000400000-0x0000000000438000-memory.dmp
memory/4324-138-0x0000000000400000-0x0000000000438000-memory.dmp