Analysis Overview
SHA256
df4a00cefda94fd8e9c271d1aca219d8c7f3615417749ab4d25e2892f863c386
Threat Level: Known bad
The file 8e5aa79fe68b88513435f0bcb03dddae_JaffaCakes118 was found to be: Known bad.
Malicious Activity Summary
Modifies visiblity of hidden/system files in Explorer
UAC bypass
Adds policy Run key to start application
Disables taskbar notifications via registry modification
Deletes itself
Blocklisted process makes network request
Drops file in Program Files directory
Unsigned PE
System Location Discovery: System Language Discovery
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Suspicious behavior: MapViewOfSection
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-11-04 00:56
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-11-04 00:56
Reported
2024-11-04 03:20
Platform
win7-20241010-en
Max time kernel
117s
Max time network
120s
Command Line
Signatures
Modifies visiblity of hidden/system files in Explorer
| Description | Indicator | Process | Target |
| Set value (int) | \REGISTRY\USER\S-1-5-21-2039016743-699959520-214465309-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" | C:\Windows\SysWOW64\msiexec.exe | N/A |
UAC bypass
| Description | Indicator | Process | Target |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" | C:\Windows\SysWOW64\msiexec.exe | N/A |
Adds policy Run key to start application
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\MACHINE\software\microsoft\windows\currentversion\Policies\Explorer\Run | C:\Windows\SysWOW64\msiexec.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\1704421287 = "C:\\PROGRA~3\\mskcfx.exe" | C:\Windows\SysWOW64\msiexec.exe | N/A |
Disables taskbar notifications via registry modification
Deletes itself
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\msiexec.exe | N/A |
Blocklisted process makes network request
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\msiexec.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\msiexec.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\msiexec.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\msiexec.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\msiexec.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\msiexec.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\msiexec.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\msiexec.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\msiexec.exe | N/A |
Drops file in Program Files directory
| Description | Indicator | Process | Target |
| File created | C:\PROGRA~3\mskcfx.exe | C:\Windows\SysWOW64\msiexec.exe | N/A |
| File created | C:\PROGRA~3\259455465 | C:\Windows\SysWOW64\msiexec.exe | N/A |
| File opened for modification | C:\PROGRA~3\mskcfx.exe | C:\Windows\SysWOW64\msiexec.exe | N/A |
System Location Discovery: System Language Discovery
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\msiexec.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\8e5aa79fe68b88513435f0bcb03dddae_JaffaCakes118.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\msiexec.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\8e5aa79fe68b88513435f0bcb03dddae_JaffaCakes118.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\msiexec.exe | N/A |
Suspicious behavior: MapViewOfSection
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\8e5aa79fe68b88513435f0bcb03dddae_JaffaCakes118.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\8e5aa79fe68b88513435f0bcb03dddae_JaffaCakes118.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\8e5aa79fe68b88513435f0bcb03dddae_JaffaCakes118.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Windows\SysWOW64\msiexec.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\8e5aa79fe68b88513435f0bcb03dddae_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\8e5aa79fe68b88513435f0bcb03dddae_JaffaCakes118.exe"
C:\Windows\SysWOW64\msiexec.exe
"C:\Windows\system32\msiexec.exe"
C:\Windows\SysWOW64\msiexec.exe
"C:\Windows\system32\msiexec.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | europe.pool.ntp.org | udp |
| US | 8.8.4.4:53 | microsoft.com | udp |
| NL | 20.76.201.171:80 | microsoft.com | tcp |
| US | 8.8.4.4:53 | tds.repack.it | udp |
| US | 8.8.8.8:53 | tds.repack.it | udp |
| US | 8.8.4.4:53 | bmp.pilenga.co.uk | udp |
| US | 8.8.8.8:53 | bmp.pilenga.co.uk | udp |
| US | 8.8.4.4:53 | microsoft.com | udp |
| AU | 20.70.246.20:80 | microsoft.com | tcp |
| US | 8.8.4.4:53 | tds.repack.it | udp |
| US | 8.8.4.4:53 | bmp.pilenga.co.uk | udp |
Files
memory/2552-0-0x0000000000220000-0x0000000000226000-memory.dmp
memory/2552-1-0x0000000000120000-0x0000000000160000-memory.dmp
memory/2576-2-0x0000000000A10000-0x0000000000A24000-memory.dmp
memory/2576-3-0x0000000000A10000-0x0000000000A24000-memory.dmp
memory/2576-5-0x0000000000A10000-0x0000000000A24000-memory.dmp
memory/2552-8-0x0000000000400000-0x0000000000427000-memory.dmp
memory/2552-9-0x0000000000120000-0x0000000000160000-memory.dmp
memory/2720-13-0x0000000000090000-0x0000000000098000-memory.dmp
memory/2720-14-0x00000000024A0000-0x00000000024E0000-memory.dmp
memory/2720-21-0x0000000000090000-0x0000000000098000-memory.dmp
memory/2720-22-0x00000000024A0000-0x00000000024E0000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-11-04 00:56
Reported
2024-11-04 03:05
Platform
win10v2004-20241007-en
Max time kernel
140s
Max time network
138s
Command Line
Signatures
Modifies visiblity of hidden/system files in Explorer
| Description | Indicator | Process | Target |
| Set value (int) | \REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" | C:\Windows\SysWOW64\msiexec.exe | N/A |
Adds policy Run key to start application
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\MACHINE\software\microsoft\windows\currentversion\Policies\Explorer\Run | C:\Windows\SysWOW64\msiexec.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\1619438023 = "C:\\PROGRA~3\\msskva.exe" | C:\Windows\SysWOW64\msiexec.exe | N/A |
Disables taskbar notifications via registry modification
Deletes itself
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\msiexec.exe | N/A |
Blocklisted process makes network request
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\msiexec.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\msiexec.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\msiexec.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\msiexec.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\msiexec.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\msiexec.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\msiexec.exe | N/A |
Drops file in Program Files directory
| Description | Indicator | Process | Target |
| File created | C:\PROGRA~3\241140593 | C:\Windows\SysWOW64\msiexec.exe | N/A |
| File opened for modification | C:\PROGRA~3\msskva.exe | C:\Windows\SysWOW64\msiexec.exe | N/A |
| File created | C:\PROGRA~3\msskva.exe | C:\Windows\SysWOW64\msiexec.exe | N/A |
System Location Discovery: System Language Discovery
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\8e5aa79fe68b88513435f0bcb03dddae_JaffaCakes118.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\msiexec.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\8e5aa79fe68b88513435f0bcb03dddae_JaffaCakes118.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\8e5aa79fe68b88513435f0bcb03dddae_JaffaCakes118.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\msiexec.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\msiexec.exe | N/A |
Suspicious behavior: MapViewOfSection
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\8e5aa79fe68b88513435f0bcb03dddae_JaffaCakes118.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\8e5aa79fe68b88513435f0bcb03dddae_JaffaCakes118.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Windows\SysWOW64\msiexec.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2072 wrote to memory of 1716 | N/A | C:\Users\Admin\AppData\Local\Temp\8e5aa79fe68b88513435f0bcb03dddae_JaffaCakes118.exe | C:\Windows\SysWOW64\msiexec.exe |
| PID 2072 wrote to memory of 1716 | N/A | C:\Users\Admin\AppData\Local\Temp\8e5aa79fe68b88513435f0bcb03dddae_JaffaCakes118.exe | C:\Windows\SysWOW64\msiexec.exe |
| PID 2072 wrote to memory of 1716 | N/A | C:\Users\Admin\AppData\Local\Temp\8e5aa79fe68b88513435f0bcb03dddae_JaffaCakes118.exe | C:\Windows\SysWOW64\msiexec.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\8e5aa79fe68b88513435f0bcb03dddae_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\8e5aa79fe68b88513435f0bcb03dddae_JaffaCakes118.exe"
C:\Windows\SysWOW64\msiexec.exe
"C:\Windows\system32\msiexec.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 8.8.8.8.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 217.106.137.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | europe.pool.ntp.org | udp |
| US | 8.8.4.4:53 | microsoft.com | udp |
| US | 20.112.250.133:80 | microsoft.com | tcp |
| US | 8.8.8.8:53 | tds.repack.it | udp |
| US | 8.8.8.8:53 | bmp.pilenga.co.uk | udp |
| US | 8.8.8.8:53 | 73.209.201.84.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 27.59.147.94.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 22.160.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 4.4.8.8.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 133.250.112.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 13.86.106.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 56.163.245.4.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 15.164.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 92.12.20.2.in-addr.arpa | udp |
| US | 8.8.4.4:53 | microsoft.com | udp |
| US | 8.8.8.8:53 | 172.214.232.199.in-addr.arpa | udp |
| AU | 20.70.246.20:80 | microsoft.com | tcp |
| US | 8.8.8.8:53 | tds.repack.it | udp |
| US | 8.8.8.8:53 | bmp.pilenga.co.uk | udp |
| US | 8.8.8.8:53 | 20.246.70.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 57.169.31.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 31.243.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | tse1.mm.bing.net | udp |
| US | 150.171.28.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.28.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.28.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.28.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.28.10:443 | tse1.mm.bing.net | tcp |
| US | 8.8.8.8:53 | 55.36.223.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 10.28.171.150.in-addr.arpa | udp |
| US | 8.8.4.4:53 | microsoft.com | udp |
| US | 20.112.250.133:80 | microsoft.com | tcp |
| US | 8.8.8.8:53 | tds.repack.it | udp |
| US | 8.8.8.8:53 | bmp.pilenga.co.uk | udp |
Files
memory/2072-0-0x00000000009D0000-0x00000000009D6000-memory.dmp
memory/2072-1-0x0000000000930000-0x0000000000940000-memory.dmp
memory/1716-2-0x0000000000270000-0x0000000000282000-memory.dmp
memory/1716-6-0x0000000000270000-0x0000000000282000-memory.dmp
memory/1716-4-0x0000000000270000-0x0000000000282000-memory.dmp
memory/1716-7-0x0000000000200000-0x0000000000208000-memory.dmp
memory/1716-8-0x0000000001FE0000-0x0000000001FF0000-memory.dmp
memory/2072-9-0x0000000000400000-0x0000000000427000-memory.dmp
memory/1716-11-0x0000000001FE0000-0x0000000001FF0000-memory.dmp
memory/1716-17-0x0000000000200000-0x0000000000208000-memory.dmp
memory/1716-19-0x0000000001FE0000-0x0000000001FF0000-memory.dmp
memory/1716-20-0x0000000001FE0000-0x0000000001FF0000-memory.dmp