Analysis Overview
SHA256
b91d9ef912d773a299cd29ebcf63da58dd98ef2e2c01bed0c0b178829dc0178f
Threat Level: Likely malicious
The file ef398b61e90de340dab8751ab744624a_JaffaCakes118 was found to be: Likely malicious.
Malicious Activity Summary
Identifies VirtualBox via ACPI registry values (likely anti-VM)
Themida packer
Checks BIOS information in registry
Checks whether UAC is enabled
Suspicious use of NtSetInformationThreadHideFromDebugger
Unsigned PE
Program crash
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-04-12 05:24
Signatures
Themida packer
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-04-12 05:24
Reported
2024-04-12 05:26
Platform
win7-20240221-en
Max time kernel
141s
Max time network
119s
Command Line
Signatures
Identifies VirtualBox via ACPI registry values (likely anti-VM)
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ | C:\Users\Admin\AppData\Local\Temp\ef398b61e90de340dab8751ab744624a_JaffaCakes118.exe | N/A |
Checks BIOS information in registry
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion | C:\Users\Admin\AppData\Local\Temp\ef398b61e90de340dab8751ab744624a_JaffaCakes118.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion | C:\Users\Admin\AppData\Local\Temp\ef398b61e90de340dab8751ab744624a_JaffaCakes118.exe | N/A |
Themida packer
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Checks whether UAC is enabled
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA | C:\Users\Admin\AppData\Local\Temp\ef398b61e90de340dab8751ab744624a_JaffaCakes118.exe | N/A |
Suspicious use of NtSetInformationThreadHideFromDebugger
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\ef398b61e90de340dab8751ab744624a_JaffaCakes118.exe | N/A |
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Users\Admin\AppData\Local\Temp\ef398b61e90de340dab8751ab744624a_JaffaCakes118.exe |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2008 wrote to memory of 2584 | N/A | C:\Users\Admin\AppData\Local\Temp\ef398b61e90de340dab8751ab744624a_JaffaCakes118.exe | C:\Windows\SysWOW64\WerFault.exe |
| PID 2008 wrote to memory of 2584 | N/A | C:\Users\Admin\AppData\Local\Temp\ef398b61e90de340dab8751ab744624a_JaffaCakes118.exe | C:\Windows\SysWOW64\WerFault.exe |
| PID 2008 wrote to memory of 2584 | N/A | C:\Users\Admin\AppData\Local\Temp\ef398b61e90de340dab8751ab744624a_JaffaCakes118.exe | C:\Windows\SysWOW64\WerFault.exe |
| PID 2008 wrote to memory of 2584 | N/A | C:\Users\Admin\AppData\Local\Temp\ef398b61e90de340dab8751ab744624a_JaffaCakes118.exe | C:\Windows\SysWOW64\WerFault.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\ef398b61e90de340dab8751ab744624a_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\ef398b61e90de340dab8751ab744624a_JaffaCakes118.exe"
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2008 -s 572
Network
Files
memory/2008-0-0x0000000000210000-0x0000000000BFA000-memory.dmp
memory/2008-1-0x00000000758E0000-0x00000000759F0000-memory.dmp
memory/2008-4-0x00000000758E0000-0x00000000759F0000-memory.dmp
memory/2008-8-0x00000000758E0000-0x00000000759F0000-memory.dmp
memory/2008-9-0x00000000758E0000-0x00000000759F0000-memory.dmp
memory/2008-6-0x0000000075AB0000-0x0000000075AF7000-memory.dmp
memory/2008-10-0x0000000075AB0000-0x0000000075AF7000-memory.dmp
memory/2008-11-0x00000000758E0000-0x00000000759F0000-memory.dmp
memory/2008-12-0x00000000758E0000-0x00000000759F0000-memory.dmp
memory/2008-14-0x00000000758E0000-0x00000000759F0000-memory.dmp
memory/2008-13-0x00000000758E0000-0x00000000759F0000-memory.dmp
memory/2008-15-0x00000000758E0000-0x00000000759F0000-memory.dmp
memory/2008-16-0x00000000758E0000-0x00000000759F0000-memory.dmp
memory/2008-17-0x0000000077DE0000-0x0000000077DE2000-memory.dmp
memory/2008-19-0x0000000000210000-0x0000000000BFA000-memory.dmp
memory/2008-18-0x0000000074DF0000-0x00000000754DE000-memory.dmp
memory/2008-20-0x0000000000210000-0x0000000000BFA000-memory.dmp
memory/2008-22-0x0000000000210000-0x0000000000BFA000-memory.dmp
memory/2008-24-0x00000000758E0000-0x00000000759F0000-memory.dmp
memory/2008-25-0x00000000758E0000-0x00000000759F0000-memory.dmp
memory/2008-26-0x0000000075AB0000-0x0000000075AF7000-memory.dmp
memory/2008-27-0x00000000758E0000-0x00000000759F0000-memory.dmp
memory/2008-28-0x00000000758E0000-0x00000000759F0000-memory.dmp
memory/2008-29-0x00000000758E0000-0x00000000759F0000-memory.dmp
memory/2008-30-0x00000000758E0000-0x00000000759F0000-memory.dmp
memory/2008-31-0x0000000074DF0000-0x00000000754DE000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-04-12 05:24
Reported
2024-04-12 05:26
Platform
win10v2004-20240226-en
Max time kernel
92s
Max time network
139s
Command Line
Signatures
Identifies VirtualBox via ACPI registry values (likely anti-VM)
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ | C:\Users\Admin\AppData\Local\Temp\ef398b61e90de340dab8751ab744624a_JaffaCakes118.exe | N/A |
Checks BIOS information in registry
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion | C:\Users\Admin\AppData\Local\Temp\ef398b61e90de340dab8751ab744624a_JaffaCakes118.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion | C:\Users\Admin\AppData\Local\Temp\ef398b61e90de340dab8751ab744624a_JaffaCakes118.exe | N/A |
Themida packer
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Checks whether UAC is enabled
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA | C:\Users\Admin\AppData\Local\Temp\ef398b61e90de340dab8751ab744624a_JaffaCakes118.exe | N/A |
Suspicious use of NtSetInformationThreadHideFromDebugger
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\ef398b61e90de340dab8751ab744624a_JaffaCakes118.exe | N/A |
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Users\Admin\AppData\Local\Temp\ef398b61e90de340dab8751ab744624a_JaffaCakes118.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\ef398b61e90de340dab8751ab744624a_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\ef398b61e90de340dab8751ab744624a_JaffaCakes118.exe"
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 2396 -ip 2396
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2396 -s 932
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 196.249.167.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 240.221.184.93.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 23.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 209.205.72.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 228.249.119.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 50.23.12.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 171.39.242.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 0.205.248.87.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 240.197.17.2.in-addr.arpa | udp |
Files
memory/2396-0-0x0000000000100000-0x0000000000AEA000-memory.dmp
memory/2396-1-0x0000000075A90000-0x0000000075B80000-memory.dmp
memory/2396-2-0x0000000075A90000-0x0000000075B80000-memory.dmp
memory/2396-3-0x0000000075A90000-0x0000000075B80000-memory.dmp
memory/2396-4-0x0000000075A90000-0x0000000075B80000-memory.dmp
memory/2396-5-0x0000000076F44000-0x0000000076F46000-memory.dmp
memory/2396-6-0x0000000075A90000-0x0000000075B80000-memory.dmp
memory/2396-7-0x0000000075A90000-0x0000000075B80000-memory.dmp
memory/2396-11-0x0000000000100000-0x0000000000AEA000-memory.dmp
memory/2396-12-0x0000000000100000-0x0000000000AEA000-memory.dmp
memory/2396-13-0x0000000005A20000-0x0000000005FC4000-memory.dmp
memory/2396-14-0x0000000005510000-0x00000000055A2000-memory.dmp
memory/2396-16-0x0000000000100000-0x0000000000AEA000-memory.dmp
memory/2396-17-0x0000000075A90000-0x0000000075B80000-memory.dmp