Analysis Overview
SHA256
633a2f9d97be6e25dc8b58c3fa3fb3c13ec8ec4b6ca75dbddd555b74053f9e00
Threat Level: Likely malicious
The file eeb3005e34e666b18f5b6eabcd02856c_JaffaCakes118 was found to be: Likely malicious.
Malicious Activity Summary
Stops running service(s)
Uses Session Manager for persistence
Modifies Windows Firewall
Themida packer
Adds Run key to start application
Drops file in System32 directory
Drops file in Windows directory
Launches sc.exe
Unsigned PE
Suspicious use of WriteProcessMemory
Suspicious behavior: GetForegroundWindowSpam
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-04-12 00:25
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 00:25
Reported
2024-04-12 00:27
Platform
win7-20240221-en
Max time kernel
150s
Max time network
122s
Command Line
Signatures
Modifies Windows Firewall
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\netsh.exe | N/A |
Stops running service(s)
Uses Session Manager for persistence
| Description | Indicator | Process | Target |
| Set value (data) | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\SESSION MANAGER\BootExecute = 6100750074006f0063006800650063006b0020006100750074006f00630068006b0020002a0000000000 | C:\Windows\SysWOW64\reg.exe | N/A |
| Set value (data) | \REGISTRY\MACHINE\SYSTEM\ControlSet002\Control\Session Manager\BootExecute = 6100750074006f0063006800650063006b0020006100750074006f00630068006b0020002a0000000000 | C:\Windows\SysWOW64\reg.exe | N/A |
| Set value (data) | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\SESSION MANAGER\BootExecute = 6100750074006f0063006800650063006b0020006100750074006f00630068006b0020002a0000000000 | C:\Windows\SysWOW64\reg.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 |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Winexec32 = "C:\\windows\\system\\win.exe" | C:\Users\Admin\AppData\Local\Temp\eeb3005e34e666b18f5b6eabcd02856c_JaffaCakes118.exe | N/A |
Drops file in System32 directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\SysWOW64\reg_winupdate001.txt | C:\Users\Admin\AppData\Local\Temp\eeb3005e34e666b18f5b6eabcd02856c_JaffaCakes118.exe | N/A |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File created | C:\windows\system\win.exe | C:\Users\Admin\AppData\Local\Temp\eeb3005e34e666b18f5b6eabcd02856c_JaffaCakes118.exe | N/A |
Launches sc.exe
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\sc.exe | N/A |
Creates scheduled task(s)
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\schtasks.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\eeb3005e34e666b18f5b6eabcd02856c_JaffaCakes118.exe | N/A |
Suspicious behavior: GetForegroundWindowSpam
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\eeb3005e34e666b18f5b6eabcd02856c_JaffaCakes118.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\eeb3005e34e666b18f5b6eabcd02856c_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\eeb3005e34e666b18f5b6eabcd02856c_JaffaCakes118.exe"
C:\Windows\SysWOW64\schtasks.exe
schtasks /create /tn startt /tr c:\autoexec.bat /sc onstart /ru system
C:\Windows\SysWOW64\sc.exe
sc delete GbpSv
C:\Windows\SysWOW64\reg.exe
reg add "HKLM\SYSTEM\ControlSet001\Control\Session manager" /v BootExecute /t REG_MULTI_SZ /d "autocheck autochk *" /f
C:\Windows\SysWOW64\reg.exe
reg add "HKLM\SYSTEM\ControlSet002\Control\Session manager" /v BootExecute /t REG_MULTI_SZ /d "autocheck autochk *" /f
C:\Windows\SysWOW64\reg.exe
reg add "HKLM\SYSTEM\CurrentControlSet\Control\Session manager" /v BootExecute /t REG_MULTI_SZ /d "autocheck autochk *" /f
C:\Windows\SysWOW64\netsh.exe
netsh firewall add allowedprogram C:\windows\system\win.exe RPCCC
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | ecovision.my-webs.org | udp |
| US | 199.59.243.225:80 | ecovision.my-webs.org | tcp |
Files
memory/2368-1-0x0000000000310000-0x00000000003F0000-memory.dmp
memory/2368-0-0x00000000002E0000-0x00000000002E1000-memory.dmp
memory/2368-5-0x0000000000400000-0x0000000001C72000-memory.dmp
memory/2368-6-0x0000000006DD0000-0x0000000006DD1000-memory.dmp
memory/2368-7-0x0000000006DB0000-0x0000000006DB1000-memory.dmp
memory/2368-8-0x0000000006D70000-0x0000000006D72000-memory.dmp
memory/2368-9-0x0000000000400000-0x0000000001C72000-memory.dmp
memory/2368-10-0x0000000006D60000-0x0000000006D62000-memory.dmp
memory/2368-12-0x0000000006DC0000-0x0000000006DC1000-memory.dmp
memory/2368-14-0x0000000006E60000-0x0000000006E61000-memory.dmp
memory/2368-16-0x0000000000400000-0x0000000001C72000-memory.dmp
memory/2368-17-0x0000000006EA0000-0x0000000006EA1000-memory.dmp
memory/2368-18-0x0000000000400000-0x0000000001C72000-memory.dmp
memory/2368-19-0x0000000006F40000-0x0000000006F41000-memory.dmp
memory/2368-20-0x0000000000400000-0x0000000001C72000-memory.dmp
memory/2368-21-0x0000000006DF0000-0x0000000006DF1000-memory.dmp
memory/2368-22-0x0000000000400000-0x0000000001C72000-memory.dmp
memory/2368-23-0x0000000006F50000-0x0000000006F51000-memory.dmp
memory/2368-25-0x0000000006E70000-0x0000000006E72000-memory.dmp
memory/2368-27-0x0000000006EF0000-0x0000000006EF1000-memory.dmp
memory/2368-29-0x0000000006DE0000-0x0000000006DE1000-memory.dmp
memory/2368-31-0x0000000006EB0000-0x0000000006EB1000-memory.dmp
memory/2368-32-0x0000000000400000-0x0000000001C72000-memory.dmp
memory/2368-33-0x0000000006F00000-0x0000000006F01000-memory.dmp
memory/2368-34-0x0000000000400000-0x0000000001C72000-memory.dmp
memory/2368-35-0x0000000006F30000-0x0000000006F31000-memory.dmp
memory/2368-36-0x0000000001CD0000-0x0000000001CD1000-memory.dmp
memory/2368-37-0x0000000006E40000-0x0000000006E41000-memory.dmp
memory/2368-38-0x00000000071B0000-0x00000000071B2000-memory.dmp
memory/2368-39-0x0000000006F20000-0x0000000006F21000-memory.dmp
memory/2368-40-0x0000000006EE0000-0x0000000006EE1000-memory.dmp
memory/2368-41-0x0000000006DA0000-0x0000000006DA1000-memory.dmp
memory/2368-42-0x0000000006D90000-0x0000000006D91000-memory.dmp
memory/2368-43-0x0000000006D80000-0x0000000006D81000-memory.dmp
memory/2368-44-0x0000000006E80000-0x0000000006E81000-memory.dmp
memory/2368-45-0x0000000006E20000-0x0000000006E21000-memory.dmp
memory/2368-46-0x0000000006EC0000-0x0000000006EC1000-memory.dmp
memory/2368-47-0x0000000006ED0000-0x0000000006ED1000-memory.dmp
memory/2368-48-0x0000000006E30000-0x0000000006E31000-memory.dmp
memory/2368-49-0x0000000006E00000-0x0000000006E01000-memory.dmp
memory/2368-50-0x00000000070E0000-0x00000000070E2000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-04-12 00:25
Reported
2024-04-12 00:27
Platform
win10v2004-20240226-en
Max time kernel
93s
Max time network
94s
Command Line
Signatures
Processes
C:\Users\Admin\AppData\Local\Temp\eeb3005e34e666b18f5b6eabcd02856c_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\eeb3005e34e666b18f5b6eabcd02856c_JaffaCakes118.exe"
Network
| Country | Destination | Domain | Proto |
| US | 138.91.171.81:80 | tcp | |
| US | 8.8.8.8:53 | 58.55.71.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 74.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 103.169.127.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 15.164.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 130.118.77.104.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 150.1.37.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 240.221.184.93.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 13.227.111.52.in-addr.arpa | udp |
Files
memory/3064-1-0x00000000038E0000-0x00000000039C0000-memory.dmp
memory/3064-0-0x00000000022A0000-0x00000000022A1000-memory.dmp