Analysis Overview
SHA256
6cc38a350d313916a19f09b2163dbae59fcbc58ad50b534fd9809c69e400f5e3
Threat Level: Known bad
The file 8d7b89b7d47ebb2fbb7b5389305ce8b8 was found to be: Known bad.
Malicious Activity Summary
ModiLoader, DBatLoader
ModiLoader Second Stage
Deletes itself
Loads dropped DLL
Executes dropped EXE
Drops file in System32 directory
Suspicious use of SetThreadContext
Drops file in Program Files directory
Unsigned PE
Program crash
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Analysis: static1
Detonation Overview
Reported
2024-02-03 22:12
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-02-03 22:12
Reported
2024-02-03 22:15
Platform
win7-20231215-en
Max time kernel
143s
Max time network
121s
Command Line
Signatures
ModiLoader, DBatLoader
ModiLoader Second Stage
| 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 |
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:\Program Files\Common Files\Microsoft Shared\MSINFO\rejoice813.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\8d7b89b7d47ebb2fbb7b5389305ce8b8.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\8d7b89b7d47ebb2fbb7b5389305ce8b8.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | N/A |
Drops file in System32 directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\SysWOW64\_rejoice813.exe | C:\Program Files\Common Files\Microsoft Shared\MSINFO\rejoice813.exe | N/A |
| File opened for modification | C:\Windows\SysWOW64\_rejoice813.exe | C:\Program Files\Common Files\Microsoft Shared\MSINFO\rejoice813.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 2004 set thread context of 2884 | N/A | C:\Program Files\Common Files\Microsoft Shared\MSINFO\rejoice813.exe | C:\Windows\SysWOW64\calc.exe |
Drops file in Program Files directory
| Description | Indicator | Process | Target |
| File opened for modification | C:\Program Files\Common Files\Microsoft Shared\MSINFO\rejoice813.exe | C:\Users\Admin\AppData\Local\Temp\8d7b89b7d47ebb2fbb7b5389305ce8b8.exe | N/A |
| File created | C:\Program Files\Common Files\Microsoft Shared\MSINFO\Delet.bat | C:\Users\Admin\AppData\Local\Temp\8d7b89b7d47ebb2fbb7b5389305ce8b8.exe | N/A |
| File created | C:\Program Files\Common Files\Microsoft Shared\MSINFO\rejoice813.exe | C:\Users\Admin\AppData\Local\Temp\8d7b89b7d47ebb2fbb7b5389305ce8b8.exe | N/A |
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Program Files\Common Files\Microsoft Shared\MSINFO\rejoice813.exe |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\8d7b89b7d47ebb2fbb7b5389305ce8b8.exe
"C:\Users\Admin\AppData\Local\Temp\8d7b89b7d47ebb2fbb7b5389305ce8b8.exe"
C:\Program Files\Common Files\Microsoft Shared\MSINFO\rejoice813.exe
"C:\Program Files\Common Files\Microsoft Shared\MSINFO\rejoice813.exe"
C:\Windows\SysWOW64\calc.exe
"C:\Windows\system32\calc.exe"
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2004 -s 320
C:\Windows\SysWOW64\cmd.exe
cmd /c ""C:\Program Files\Common Files\Microsoft Shared\MSINFO\Delet.bat""
Network
Files
memory/2152-0-0x0000000000400000-0x0000000000572000-memory.dmp
memory/2152-1-0x0000000000320000-0x0000000000374000-memory.dmp
memory/2152-2-0x0000000001FF0000-0x0000000001FF1000-memory.dmp
memory/2152-10-0x0000000001FC0000-0x0000000001FC1000-memory.dmp
memory/2152-9-0x0000000002030000-0x0000000002031000-memory.dmp
memory/2152-8-0x0000000002000000-0x0000000002001000-memory.dmp
memory/2152-7-0x0000000002010000-0x0000000002011000-memory.dmp
memory/2152-6-0x0000000001FA0000-0x0000000001FA1000-memory.dmp
memory/2152-5-0x0000000001FB0000-0x0000000001FB1000-memory.dmp
memory/2152-4-0x0000000002020000-0x0000000002021000-memory.dmp
memory/2152-3-0x0000000001FD0000-0x0000000001FD1000-memory.dmp
memory/2152-11-0x0000000002400000-0x0000000002401000-memory.dmp
\Program Files\Common Files\Microsoft Shared\MSInfo\rejoice813.exe
| MD5 | 8d7b89b7d47ebb2fbb7b5389305ce8b8 |
| SHA1 | 2f92d8cdacfbc5203f9dff10d9354f45ab5bf22e |
| SHA256 | 6cc38a350d313916a19f09b2163dbae59fcbc58ad50b534fd9809c69e400f5e3 |
| SHA512 | 13655c623db30b7cde28ab81a5ed75821667344f96818931a9a40699a51b697a68261ebc66dc10f640cc7d27181687759246a70c09e2183db521c203640abf77 |
memory/2004-22-0x0000000000400000-0x0000000000572000-memory.dmp
memory/2152-21-0x0000000004030000-0x00000000041A2000-memory.dmp
memory/2004-23-0x0000000000300000-0x0000000000354000-memory.dmp
memory/2004-28-0x0000000003290000-0x0000000003291000-memory.dmp
memory/2884-31-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
memory/2884-33-0x0000000000400000-0x0000000000572000-memory.dmp
memory/2004-34-0x0000000001FD0000-0x0000000001FD1000-memory.dmp
memory/2004-30-0x00000000005F0000-0x00000000005F2000-memory.dmp
memory/2884-36-0x0000000000400000-0x0000000000572000-memory.dmp
memory/2004-29-0x00000000003C0000-0x00000000003C2000-memory.dmp
memory/2004-27-0x00000000032A0000-0x00000000032A1000-memory.dmp
memory/2884-38-0x0000000000E50000-0x0000000000E50000-memory.dmp
memory/2152-42-0x0000000000400000-0x0000000000572000-memory.dmp
memory/2004-44-0x0000000000400000-0x0000000000572000-memory.dmp
memory/2152-45-0x0000000000320000-0x0000000000374000-memory.dmp
memory/2152-47-0x0000000002400000-0x0000000002401000-memory.dmp
memory/2004-48-0x0000000000300000-0x0000000000354000-memory.dmp
memory/2004-50-0x00000000032A0000-0x00000000032A1000-memory.dmp
memory/2004-51-0x0000000003290000-0x0000000003291000-memory.dmp
C:\Program Files\Common Files\Microsoft Shared\MSInfo\Delet.bat
| MD5 | 23e0114e054a29647a8cd87a0392ec84 |
| SHA1 | 427082482ed3b88b8e0d4a61f93eb459419b4073 |
| SHA256 | 549ba097d22fc041de2f767d7c802b528b349f1c0346a5c644349c0512a80dfa |
| SHA512 | 17146399f5a7ee5ce42a29840d35be61f7b78ec247e3848559a0908b9293da8006355df16740887c6bbbae4e58a6c6522a3336234748ab9e52eeb80cd7dabd02 |
memory/2152-60-0x0000000000400000-0x0000000000572000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-02-03 22:12
Reported
2024-02-03 22:15
Platform
win10v2004-20231222-en
Max time kernel
92s
Max time network
148s
Command Line
Signatures
ModiLoader, DBatLoader
ModiLoader Second Stage
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Program Files\Common Files\Microsoft Shared\MSINFO\rejoice813.exe | N/A |
Drops file in System32 directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\SysWOW64\_rejoice813.exe | C:\Program Files\Common Files\Microsoft Shared\MSINFO\rejoice813.exe | N/A |
| File opened for modification | C:\Windows\SysWOW64\_rejoice813.exe | C:\Program Files\Common Files\Microsoft Shared\MSINFO\rejoice813.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 2080 set thread context of 2072 | N/A | C:\Program Files\Common Files\Microsoft Shared\MSINFO\rejoice813.exe | C:\Windows\SysWOW64\calc.exe |
Drops file in Program Files directory
| Description | Indicator | Process | Target |
| File created | C:\Program Files\Common Files\Microsoft Shared\MSINFO\rejoice813.exe | C:\Users\Admin\AppData\Local\Temp\8d7b89b7d47ebb2fbb7b5389305ce8b8.exe | N/A |
| File opened for modification | C:\Program Files\Common Files\Microsoft Shared\MSINFO\rejoice813.exe | C:\Users\Admin\AppData\Local\Temp\8d7b89b7d47ebb2fbb7b5389305ce8b8.exe | N/A |
| File created | C:\Program Files\Common Files\Microsoft Shared\MSINFO\Delet.bat | C:\Users\Admin\AppData\Local\Temp\8d7b89b7d47ebb2fbb7b5389305ce8b8.exe | N/A |
Program crash
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\8d7b89b7d47ebb2fbb7b5389305ce8b8.exe
"C:\Users\Admin\AppData\Local\Temp\8d7b89b7d47ebb2fbb7b5389305ce8b8.exe"
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 4580 -ip 4580
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4580 -s 324
C:\Program Files\Common Files\Microsoft Shared\MSINFO\rejoice813.exe
"C:\Program Files\Common Files\Microsoft Shared\MSINFO\rejoice813.exe"
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 2080 -ip 2080
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2080 -s 324
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 516 -p 2072 -ip 2072
C:\program files\internet explorer\IEXPLORE.EXE
"C:\program files\internet explorer\IEXPLORE.EXE"
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 2080 -ip 2080
C:\Windows\SysWOW64\calc.exe
"C:\Windows\system32\calc.exe"
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2072 -s 12
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2080 -s 688
C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Program Files\Common Files\Microsoft Shared\MSINFO\Delet.bat""
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 190.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 28.118.140.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 75.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 58.55.71.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 26.165.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 56.126.166.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 140.71.91.104.in-addr.arpa | udp |
| US | 20.231.121.79:80 | tcp | |
| US | 8.8.8.8:53 | 182.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 210.178.17.96.in-addr.arpa | udp |
Files
memory/4580-0-0x0000000000400000-0x0000000000572000-memory.dmp
memory/4580-1-0x0000000000B90000-0x0000000000BE4000-memory.dmp
memory/4580-2-0x00000000025A0000-0x00000000025A1000-memory.dmp
memory/4580-3-0x0000000002580000-0x0000000002581000-memory.dmp
memory/4580-4-0x00000000025D0000-0x00000000025D1000-memory.dmp
memory/4580-5-0x0000000002550000-0x0000000002551000-memory.dmp
memory/4580-6-0x0000000002540000-0x0000000002541000-memory.dmp
memory/4580-7-0x00000000025C0000-0x00000000025C1000-memory.dmp
memory/4580-8-0x00000000025B0000-0x00000000025B1000-memory.dmp
memory/4580-9-0x00000000025E0000-0x00000000025E1000-memory.dmp
memory/4580-10-0x0000000002570000-0x0000000002571000-memory.dmp
memory/4580-11-0x0000000003540000-0x0000000003541000-memory.dmp
memory/4580-12-0x0000000003530000-0x0000000003531000-memory.dmp
memory/4580-13-0x0000000002530000-0x0000000002531000-memory.dmp
memory/4580-14-0x00000000025F0000-0x00000000025F1000-memory.dmp
memory/4580-17-0x0000000003640000-0x0000000003641000-memory.dmp
C:\Program Files\Common Files\microsoft shared\MSInfo\rejoice813.exe
| MD5 | 8d7b89b7d47ebb2fbb7b5389305ce8b8 |
| SHA1 | 2f92d8cdacfbc5203f9dff10d9354f45ab5bf22e |
| SHA256 | 6cc38a350d313916a19f09b2163dbae59fcbc58ad50b534fd9809c69e400f5e3 |
| SHA512 | 13655c623db30b7cde28ab81a5ed75821667344f96818931a9a40699a51b697a68261ebc66dc10f640cc7d27181687759246a70c09e2183db521c203640abf77 |
memory/2080-21-0x0000000000400000-0x0000000000572000-memory.dmp
memory/2080-22-0x00000000008A0000-0x00000000008F4000-memory.dmp
memory/2080-27-0x0000000003500000-0x0000000003501000-memory.dmp
memory/2072-25-0x0000000000400000-0x0000000000572000-memory.dmp
memory/4580-31-0x0000000000B90000-0x0000000000BE4000-memory.dmp
memory/4580-30-0x0000000000400000-0x0000000000572000-memory.dmp
C:\Program Files\Common Files\Microsoft Shared\MSINFO\Delet.bat
| MD5 | 23e0114e054a29647a8cd87a0392ec84 |
| SHA1 | 427082482ed3b88b8e0d4a61f93eb459419b4073 |
| SHA256 | 549ba097d22fc041de2f767d7c802b528b349f1c0346a5c644349c0512a80dfa |
| SHA512 | 17146399f5a7ee5ce42a29840d35be61f7b78ec247e3848559a0908b9293da8006355df16740887c6bbbae4e58a6c6522a3336234748ab9e52eeb80cd7dabd02 |
memory/2072-33-0x0000000000D10000-0x0000000000D10000-memory.dmp
memory/2080-34-0x0000000000400000-0x0000000000572000-memory.dmp
memory/2080-35-0x00000000008A0000-0x00000000008F4000-memory.dmp