Analysis Overview
SHA256
de5d4b75d28f82d4ae30f54af25b973a7afbf61046dcfb0efe9c3bfa6c6d89ee
Threat Level: Likely malicious
The file e3900aa788a06537e48ef75be8c7f09b_JaffaCakes118 was found to be: Likely malicious.
Malicious Activity Summary
Adds policy Run key to start application
Checks computer location settings
Deletes itself
Executes dropped EXE
Loads dropped DLL
Drops file in System32 directory
Unsigned PE
Enumerates physical storage devices
Suspicious use of AdjustPrivilegeToken
Suspicious use of UnmapMainImage
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-04-06 23:39
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-04-06 23:39
Reported
2024-04-06 23:42
Platform
win7-20240215-en
Max time kernel
150s
Max time network
118s
Command Line
Signatures
Adds policy Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\ishost.exe = "ishost.exe" | C:\Windows\SysWOW64\ishost.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\explorer\run | C:\Windows\SysWOW64\ishost.exe | N/A |
Deletes itself
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\cmd.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\ishost.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\ismon.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\e3900aa788a06537e48ef75be8c7f09b_JaffaCakes118.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\e3900aa788a06537e48ef75be8c7f09b_JaffaCakes118.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\ishost.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\ishost.exe | N/A |
Drops file in System32 directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\SysWOW64\ishost.exe | C:\Users\Admin\AppData\Local\Temp\e3900aa788a06537e48ef75be8c7f09b_JaffaCakes118.exe | N/A |
| File opened for modification | C:\Windows\SysWOW64\ishost.exe | C:\Users\Admin\AppData\Local\Temp\e3900aa788a06537e48ef75be8c7f09b_JaffaCakes118.exe | N/A |
| File created | C:\Windows\SysWOW64\ismon.exe | C:\Windows\SysWOW64\ishost.exe | N/A |
| File created | C:\Windows\SysWOW64\components\flx0.dll | C:\Windows\SysWOW64\ishost.exe | N/A |
Enumerates physical storage devices
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\e3900aa788a06537e48ef75be8c7f09b_JaffaCakes118.exe | N/A |
Suspicious use of UnmapMainImage
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\e3900aa788a06537e48ef75be8c7f09b_JaffaCakes118.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\e3900aa788a06537e48ef75be8c7f09b_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\e3900aa788a06537e48ef75be8c7f09b_JaffaCakes118.exe"
C:\Windows\SysWOW64\ishost.exe
C:\Windows\system32\ishost.exe
C:\Windows\SysWOW64\ismon.exe
C:\Windows\system32\ismon.exe
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\E3900A~1.EXE > nul
Network
Files
\Windows\SysWOW64\ishost.exe
| MD5 | 0de5ef77a47ede21eb5dab71c284ee6b |
| SHA1 | ab2d7aa286d22c91763a4098e51bf60dfff71ba7 |
| SHA256 | ad6feedbffa791f225071c41ca5c11669037eec725eab684f6760c4992e2c2a6 |
| SHA512 | e6b5c23ea39e6917e7e8e7f102df01f1cd14469b58f910c9a7520bbb4854281c696416a96229927c83f462c95cf098868dc476a34d1d799e02d342b9836737da |
\Windows\SysWOW64\ismon.exe
| MD5 | b3e58dc34e369aa7aa9ad9d028a61514 |
| SHA1 | 2b820feec66cac8d238ace910fe3d003d20865a3 |
| SHA256 | 56e281854b5aa366c5ada32c230288f5cd8b74b35b70980f553e2564b4e23733 |
| SHA512 | 7e22dc5b0a0d372deaa62ea160b5a5b987083ccd9eefe5e57ea2d01d93f9154f7edaba16ad2124fc119ba7c9bb9da85e94b963563cc2ff056e63ce8c964e3bd1 |
Analysis: behavioral2
Detonation Overview
Submitted
2024-04-06 23:39
Reported
2024-04-06 23:42
Platform
win10v2004-20231215-en
Max time kernel
150s
Max time network
121s
Command Line
Signatures
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\ishost.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\ishost.exe = "ishost.exe" | C:\Windows\SysWOW64\ishost.exe | N/A |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\e3900aa788a06537e48ef75be8c7f09b_JaffaCakes118.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\ishost.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\ismon.exe | N/A |
Drops file in System32 directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\SysWOW64\ishost.exe | C:\Users\Admin\AppData\Local\Temp\e3900aa788a06537e48ef75be8c7f09b_JaffaCakes118.exe | N/A |
| File opened for modification | C:\Windows\SysWOW64\ishost.exe | C:\Users\Admin\AppData\Local\Temp\e3900aa788a06537e48ef75be8c7f09b_JaffaCakes118.exe | N/A |
| File created | C:\Windows\SysWOW64\ismon.exe | C:\Windows\SysWOW64\ishost.exe | N/A |
| File created | C:\Windows\SysWOW64\components\flx0.dll | C:\Windows\SysWOW64\ishost.exe | N/A |
Enumerates physical storage devices
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\e3900aa788a06537e48ef75be8c7f09b_JaffaCakes118.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\e3900aa788a06537e48ef75be8c7f09b_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\e3900aa788a06537e48ef75be8c7f09b_JaffaCakes118.exe"
C:\Windows\SysWOW64\ishost.exe
C:\Windows\system32\ishost.exe
C:\Windows\SysWOW64\ismon.exe
C:\Windows\system32\ismon.exe
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\E3900A~1.EXE > nul
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 149.220.183.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 133.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 79.121.231.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 104.219.191.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | www.microsoft.com | udp |
| NL | 72.246.173.187:80 | www.microsoft.com | tcp |
| NL | 72.246.173.187:80 | www.microsoft.com | tcp |
| US | 8.8.8.8:53 | 86.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 187.173.246.72.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 198.187.3.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 150.1.37.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 140.71.91.104.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 48.229.111.52.in-addr.arpa | udp |
Files
C:\Windows\SysWOW64\ishost.exe
| MD5 | 0de5ef77a47ede21eb5dab71c284ee6b |
| SHA1 | ab2d7aa286d22c91763a4098e51bf60dfff71ba7 |
| SHA256 | ad6feedbffa791f225071c41ca5c11669037eec725eab684f6760c4992e2c2a6 |
| SHA512 | e6b5c23ea39e6917e7e8e7f102df01f1cd14469b58f910c9a7520bbb4854281c696416a96229927c83f462c95cf098868dc476a34d1d799e02d342b9836737da |
C:\Windows\SysWOW64\ismon.exe
| MD5 | b3e58dc34e369aa7aa9ad9d028a61514 |
| SHA1 | 2b820feec66cac8d238ace910fe3d003d20865a3 |
| SHA256 | 56e281854b5aa366c5ada32c230288f5cd8b74b35b70980f553e2564b4e23733 |
| SHA512 | 7e22dc5b0a0d372deaa62ea160b5a5b987083ccd9eefe5e57ea2d01d93f9154f7edaba16ad2124fc119ba7c9bb9da85e94b963563cc2ff056e63ce8c964e3bd1 |