Analysis Overview
SHA256
4de3b130908e7c938aa0794108958065aa2b8eb637f05702add07a7e8b5ab40c
Threat Level: Likely malicious
The file e394b7d286cfa81c455652b533cef711_JaffaCakes118 was found to be: Likely malicious.
Malicious Activity Summary
Modifies AppInit DLL entries
UPX packed file
Deletes itself
Executes dropped EXE
Loads dropped DLL
Drops file in System32 directory
Unsigned PE
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-04-06 23:50
Signatures
UPX packed file
| 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 |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-04-06 23:50
Reported
2024-04-06 23:53
Platform
win7-20240221-en
Max time kernel
150s
Max time network
125s
Command Line
Signatures
Modifies AppInit DLL entries
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\mssddynk.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\e394b7d286cfa81c455652b533cef711_JaffaCakes118.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\e394b7d286cfa81c455652b533cef711_JaffaCakes118.exe | N/A |
UPX packed file
| 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 |
Drops file in System32 directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\SysWOW64\mssddynk.exe | C:\Users\Admin\AppData\Local\Temp\e394b7d286cfa81c455652b533cef711_JaffaCakes118.exe | N/A |
| File opened for modification | C:\Windows\SysWOW64\mssddynk.exe | C:\Users\Admin\AppData\Local\Temp\e394b7d286cfa81c455652b533cef711_JaffaCakes118.exe | N/A |
| File created | C:\Windows\SysWOW64\mssddyn.dll | C:\Users\Admin\AppData\Local\Temp\e394b7d286cfa81c455652b533cef711_JaffaCakes118.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\e394b7d286cfa81c455652b533cef711_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\e394b7d286cfa81c455652b533cef711_JaffaCakes118.exe"
C:\Windows\SysWOW64\mssddynk.exe
C:\Windows\system32\mssddynk.exe ˜‰
C:\Windows\SysWOW64\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\e394b7d286cfa81c455652b533cef711_JaffaCakes118.exe.bat
Network
Files
memory/1440-0-0x0000000000400000-0x000000000040F000-memory.dmp
\Windows\SysWOW64\mssddynk.exe
| MD5 | e394b7d286cfa81c455652b533cef711 |
| SHA1 | 83ecda8b8a3d625c0b1bc855334f2ba037c179ec |
| SHA256 | 4de3b130908e7c938aa0794108958065aa2b8eb637f05702add07a7e8b5ab40c |
| SHA512 | eca3c3d80fd6a0929b4b065818a6f68f1cd2b58283cd844c0626d75b5e4e6f54a2f053a83d0cb1a534a15ca4730b815366221eb2c7add1bdd23b2f213ba6bf7e |
memory/1440-10-0x00000000001C0000-0x00000000001CF000-memory.dmp
memory/1224-11-0x0000000000400000-0x000000000040F000-memory.dmp
memory/1440-12-0x0000000000400000-0x000000000040F000-memory.dmp
memory/1440-16-0x00000000001C0000-0x00000000001CF000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\e394b7d286cfa81c455652b533cef711_JaffaCakes118.exe.bat
| MD5 | a04fa63598efe8b1fcaf3f471c923c2e |
| SHA1 | 34f425ed089d6907143a1834d1d53ce3b16e040f |
| SHA256 | cb435ca723a716669c0c47bb61923697463cad58555d51992472b6a1e15322be |
| SHA512 | 0e9eb0b92dbc1a9426ebe863dfc1b379d13e5cb219a917b4e3a11cea44e18e228406e907615a56157a272e57c7373d8ec1fd1525a60ccedf98b9d80f7d186601 |
Analysis: behavioral2
Detonation Overview
Submitted
2024-04-06 23:50
Reported
2024-04-06 23:53
Platform
win10v2004-20240226-en
Max time kernel
151s
Max time network
155s
Command Line
Signatures
Modifies AppInit DLL entries
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\mssddynk.exe | N/A |
UPX packed file
| 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 |
Drops file in System32 directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\SysWOW64\mssddyn.dll | C:\Users\Admin\AppData\Local\Temp\e394b7d286cfa81c455652b533cef711_JaffaCakes118.exe | N/A |
| File created | C:\Windows\SysWOW64\mssddynk.exe | C:\Users\Admin\AppData\Local\Temp\e394b7d286cfa81c455652b533cef711_JaffaCakes118.exe | N/A |
| File opened for modification | C:\Windows\SysWOW64\mssddynk.exe | C:\Users\Admin\AppData\Local\Temp\e394b7d286cfa81c455652b533cef711_JaffaCakes118.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 1940 wrote to memory of 4140 | N/A | C:\Users\Admin\AppData\Local\Temp\e394b7d286cfa81c455652b533cef711_JaffaCakes118.exe | C:\Windows\SysWOW64\mssddynk.exe |
| PID 1940 wrote to memory of 4140 | N/A | C:\Users\Admin\AppData\Local\Temp\e394b7d286cfa81c455652b533cef711_JaffaCakes118.exe | C:\Windows\SysWOW64\mssddynk.exe |
| PID 1940 wrote to memory of 4140 | N/A | C:\Users\Admin\AppData\Local\Temp\e394b7d286cfa81c455652b533cef711_JaffaCakes118.exe | C:\Windows\SysWOW64\mssddynk.exe |
| PID 1940 wrote to memory of 4420 | N/A | C:\Users\Admin\AppData\Local\Temp\e394b7d286cfa81c455652b533cef711_JaffaCakes118.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 1940 wrote to memory of 4420 | N/A | C:\Users\Admin\AppData\Local\Temp\e394b7d286cfa81c455652b533cef711_JaffaCakes118.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 1940 wrote to memory of 4420 | N/A | C:\Users\Admin\AppData\Local\Temp\e394b7d286cfa81c455652b533cef711_JaffaCakes118.exe | C:\Windows\SysWOW64\cmd.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\e394b7d286cfa81c455652b533cef711_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\e394b7d286cfa81c455652b533cef711_JaffaCakes118.exe"
C:\Windows\SysWOW64\mssddynk.exe
C:\Windows\system32\mssddynk.exe ˜‰
C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\e394b7d286cfa81c455652b533cef711_JaffaCakes118.exe.bat
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 13.86.106.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 73.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 104.219.191.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 150.1.37.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 183.59.114.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 15.164.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 0.204.248.87.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 99.56.20.217.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 11.227.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 98.56.20.217.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 123.10.44.20.in-addr.arpa | udp |
Files
memory/1940-0-0x0000000000400000-0x000000000040F000-memory.dmp
C:\Windows\SysWOW64\mssddynk.exe
| MD5 | e394b7d286cfa81c455652b533cef711 |
| SHA1 | 83ecda8b8a3d625c0b1bc855334f2ba037c179ec |
| SHA256 | 4de3b130908e7c938aa0794108958065aa2b8eb637f05702add07a7e8b5ab40c |
| SHA512 | eca3c3d80fd6a0929b4b065818a6f68f1cd2b58283cd844c0626d75b5e4e6f54a2f053a83d0cb1a534a15ca4730b815366221eb2c7add1bdd23b2f213ba6bf7e |
memory/1940-6-0x0000000000400000-0x000000000040F000-memory.dmp
memory/4140-7-0x0000000000400000-0x000000000040F000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\e394b7d286cfa81c455652b533cef711_JaffaCakes118.exe.bat
| MD5 | a04fa63598efe8b1fcaf3f471c923c2e |
| SHA1 | 34f425ed089d6907143a1834d1d53ce3b16e040f |
| SHA256 | cb435ca723a716669c0c47bb61923697463cad58555d51992472b6a1e15322be |
| SHA512 | 0e9eb0b92dbc1a9426ebe863dfc1b379d13e5cb219a917b4e3a11cea44e18e228406e907615a56157a272e57c7373d8ec1fd1525a60ccedf98b9d80f7d186601 |