Analysis Overview
SHA256
dfcd8994628bee6d7f0aa4575047e01e3f8caf1a5cd126fe79f70fcf89e5a24b
Threat Level: Known bad
The file 841d1d706e5fda5a4c6c2f6c512c18c2 was found to be: Known bad.
Malicious Activity Summary
ModiLoader, DBatLoader
ModiLoader Second Stage
Deletes itself
Executes dropped EXE
Loads dropped DLL
Drops file in System32 directory
Drops file in Program Files directory
Unsigned PE
Program crash
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Analysis: static1
Detonation Overview
Reported
2024-01-31 09:56
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-01-31 09:56
Reported
2024-01-31 09:59
Platform
win7-20231215-en
Max time kernel
141s
Max time network
118s
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\rejoice51.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\841d1d706e5fda5a4c6c2f6c512c18c2.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\841d1d706e5fda5a4c6c2f6c512c18c2.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\_rejoice51.exe | C:\Program Files\Common Files\Microsoft Shared\MSINFO\rejoice51.exe | N/A |
| File opened for modification | C:\Windows\SysWOW64\_rejoice51.exe | C:\Program Files\Common Files\Microsoft Shared\MSINFO\rejoice51.exe | N/A |
Drops file in Program Files directory
| Description | Indicator | Process | Target |
| File created | C:\Program Files\Common Files\Microsoft Shared\MSINFO\rejoice51.exe | C:\Users\Admin\AppData\Local\Temp\841d1d706e5fda5a4c6c2f6c512c18c2.exe | N/A |
| File opened for modification | C:\Program Files\Common Files\Microsoft Shared\MSINFO\rejoice51.exe | C:\Users\Admin\AppData\Local\Temp\841d1d706e5fda5a4c6c2f6c512c18c2.exe | N/A |
| File created | C:\Program Files\Common Files\Microsoft Shared\MSINFO\Delet.bat | C:\Users\Admin\AppData\Local\Temp\841d1d706e5fda5a4c6c2f6c512c18c2.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\rejoice51.exe |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\841d1d706e5fda5a4c6c2f6c512c18c2.exe
"C:\Users\Admin\AppData\Local\Temp\841d1d706e5fda5a4c6c2f6c512c18c2.exe"
C:\Program Files\Common Files\Microsoft Shared\MSINFO\rejoice51.exe
"C:\Program Files\Common Files\Microsoft Shared\MSINFO\rejoice51.exe"
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 496 -s 288
C:\Windows\SysWOW64\cmd.exe
cmd /c ""C:\Program Files\Common Files\Microsoft Shared\MSINFO\Delet.bat""
Network
Files
memory/2868-0-0x0000000000400000-0x00000000005D4000-memory.dmp
memory/2868-3-0x00000000002B0000-0x00000000002B1000-memory.dmp
\Program Files\Common Files\Microsoft Shared\MSInfo\rejoice51.exe
| MD5 | 841d1d706e5fda5a4c6c2f6c512c18c2 |
| SHA1 | 1b5c9251c9f5bf24e7a014e20b4e710f17e4a540 |
| SHA256 | dfcd8994628bee6d7f0aa4575047e01e3f8caf1a5cd126fe79f70fcf89e5a24b |
| SHA512 | 2ba25dba4f736c6f93d98eb12c99cbaaffb4c018f5fc6a8572e95eb95aa298964fd54b5d0a206d3894ebf054e37f67322f7d134ab3d7cc8ff2466664d1a9c1ee |
C:\Program Files\Common Files\Microsoft Shared\MSInfo\rejoice51.exe
| MD5 | b13ecb3b61bb6f67032e2fc73b590fb9 |
| SHA1 | e43f0d99de0918509f3ca4d5a76b587132ce4f4b |
| SHA256 | be3e1dd31c7e6d4d15cf54ffbff075dde201fd6ffcc66febeb231578c06978dd |
| SHA512 | 9c954d5d9083f4cfda876db28e5382397a479c675bbd9742ec562b54c25fc55e1fdca713633e70e9f4f7e9892c0e981eba69649c512f1ee02364ed36558b20f2 |
C:\Program Files\Common Files\Microsoft Shared\MSInfo\rejoice51.exe
| MD5 | ad371df1f3d46ad9b1aab8e03d3ec64a |
| SHA1 | 8e5bffa7287b21e2d030ecd19ca23a630335efe9 |
| SHA256 | f1dbef6d6bb557e16c74c66fa333c6506441819f14990286e65adb04ec812ae8 |
| SHA512 | ddd60412108803c358429ad3f5d213d4b4ece186b79f8485d770a7373bdb139ceccd14db80660b3b2c72a22502db0b5538d34ee6b75368ca30fca69a58359e6b |
memory/496-12-0x0000000000400000-0x00000000005D4000-memory.dmp
memory/2868-10-0x0000000003050000-0x0000000003224000-memory.dmp
C:\Program Files\Common Files\Microsoft Shared\MSINFO\rejoice51.exe
| MD5 | e755b4825a2b62a35cd43fd43c86d9da |
| SHA1 | c830b672aac2b12cb97517bfd939fa5745711f01 |
| SHA256 | 4794f0173154c712e0c3546523f1bb8f2c8718fe1a44606a8d0336122025ff1f |
| SHA512 | 60a82a21229b216b5b07017448a84b34215f9762ee39c2ca99eae1c3986a1cd325b8ba29ce8ae244dc1a936aaff8629034c612bfa745d30770f536103e3f9214 |
memory/2868-13-0x0000000003050000-0x0000000003224000-memory.dmp
memory/496-18-0x0000000000270000-0x0000000000271000-memory.dmp
\Program Files\Common Files\Microsoft Shared\MSInfo\rejoice51.exe
| MD5 | 23f014ee5d6dd2064293093f0c47adc2 |
| SHA1 | 0588e028ed9a495ec95b36fdb07bfc53c0983c63 |
| SHA256 | 5ee5f62591ca30dd4bf594c4086daa8fbe9a96ab062ffab1883ef01f6dc605f3 |
| SHA512 | 40f07b52b901bcbde9bd647683b9b466f7f6314c1491a14018c1af004b7eaf99e67acaed0efe24ab0f4db55da5962ca14e7223924c7bc67096ae4daee2d675c8 |
\Program Files\Common Files\Microsoft Shared\MSInfo\rejoice51.exe
| MD5 | d89cb9a7358663bca4d4463fa725f6d7 |
| SHA1 | a626d0c513c7be3c5a6800d6a662eb41cbb7b33e |
| SHA256 | 759c1218366e30b37451574781cfcced60fbb7eec9b4266b474c037ae8951d10 |
| SHA512 | 2375a6a4f0cc8276960caf044c47b93de47a10391758ce8e67c1da23247dd56d35b63fba3f8fb1bc07113bdf672e2141b1937c0bb34ccc60414af79605017b73 |
\Program Files\Common Files\Microsoft Shared\MSInfo\rejoice51.exe
| MD5 | f0d678bc6582e5e78b6df6429036b2c7 |
| SHA1 | 2ac3fac6227676f705d876e88a30a6cff07dd886 |
| SHA256 | 43bb3847d25ff8175ca5a4e32386be6a5a5ff59a3aaebec71baa3e3f8766c56f |
| SHA512 | 101b7e778c44ca2ee056c29298613b52289354f77cace877c978ee11e0635285bd19d363270fde78dc70eae6ccb6412626ed7467f53c29ec5a9fcb245c9ba97b |
memory/2868-22-0x0000000000400000-0x00000000005D4000-memory.dmp
memory/496-23-0x0000000000400000-0x00000000005D4000-memory.dmp
C:\Program Files\Common Files\Microsoft Shared\MSInfo\Delet.bat
| MD5 | 06c202ea021eb56220e615e2b21bafc2 |
| SHA1 | 93dbc14d2d9b79e7c244bd8072c4d7729cd0283f |
| SHA256 | 8489c4e58aa775d4c810a558a87280a2059ae749e0c3cf3d5df40b0ae637f3dd |
| SHA512 | f572d7de7699ba199b6ab85fc2ae5839624c72694de54eae166745050fbe4d705a33273c6908db3175a8b40e0eec01026fa16a972e213d1fba9b25ddc11a3180 |
memory/2868-35-0x0000000000400000-0x00000000005D4000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-01-31 09:56
Reported
2024-01-31 09:59
Platform
win10v2004-20231215-en
Max time kernel
142s
Max time network
151s
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\rejoice51.exe | N/A |
Drops file in System32 directory
| Description | Indicator | Process | Target |
| File opened for modification | C:\Windows\SysWOW64\_rejoice51.exe | C:\Program Files\Common Files\Microsoft Shared\MSINFO\rejoice51.exe | N/A |
| File created | C:\Windows\SysWOW64\_rejoice51.exe | C:\Program Files\Common Files\Microsoft Shared\MSINFO\rejoice51.exe | N/A |
Drops file in Program Files directory
| Description | Indicator | Process | Target |
| File opened for modification | C:\Program Files\Common Files\Microsoft Shared\MSINFO\rejoice51.exe | C:\Users\Admin\AppData\Local\Temp\841d1d706e5fda5a4c6c2f6c512c18c2.exe | N/A |
| File created | C:\Program Files\Common Files\Microsoft Shared\MSINFO\Delet.bat | C:\Users\Admin\AppData\Local\Temp\841d1d706e5fda5a4c6c2f6c512c18c2.exe | N/A |
| File created | C:\Program Files\Common Files\Microsoft Shared\MSINFO\rejoice51.exe | C:\Users\Admin\AppData\Local\Temp\841d1d706e5fda5a4c6c2f6c512c18c2.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\841d1d706e5fda5a4c6c2f6c512c18c2.exe
"C:\Users\Admin\AppData\Local\Temp\841d1d706e5fda5a4c6c2f6c512c18c2.exe"
C:\Program Files\Common Files\Microsoft Shared\MSINFO\rejoice51.exe
"C:\Program Files\Common Files\Microsoft Shared\MSINFO\rejoice51.exe"
C:\program files\internet explorer\IEXPLORE.EXE
"C:\program files\internet explorer\IEXPLORE.EXE"
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 | 133.211.185.52.in-addr.arpa | udp |
| NL | 52.142.223.178:80 | tcp | |
| US | 8.8.8.8:53 | 193.142.123.92.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 72.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 228.249.119.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 209.205.72.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 16.234.44.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 86.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 15.164.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 217.135.221.88.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 173.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 43.229.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 13.173.189.20.in-addr.arpa | udp |
Files
memory/2296-0-0x0000000000400000-0x00000000005D4000-memory.dmp
memory/2296-1-0x0000000002780000-0x0000000002781000-memory.dmp
C:\Program Files\Common Files\microsoft shared\MSInfo\rejoice51.exe
| MD5 | 0addf595e63b56c35c3bfa41d94d1034 |
| SHA1 | 1019eb49da5fe49e309ed933e0570afa7c4e72ac |
| SHA256 | cf6b86b823397708d29c1400526cd4ce670e8fd4852aee1a8a97c4a836793174 |
| SHA512 | c343e7cea562ddfd80643518cee24254b3dd4d23e7a2838dc2b0fc6b1caaf155f2b9dd391e7d1266566b4d2f503178274f59b43fb75d256f50a47b4c0d5a915d |
C:\Program Files\Common Files\Microsoft Shared\MSINFO\rejoice51.exe
| MD5 | 841d1d706e5fda5a4c6c2f6c512c18c2 |
| SHA1 | 1b5c9251c9f5bf24e7a014e20b4e710f17e4a540 |
| SHA256 | dfcd8994628bee6d7f0aa4575047e01e3f8caf1a5cd126fe79f70fcf89e5a24b |
| SHA512 | 2ba25dba4f736c6f93d98eb12c99cbaaffb4c018f5fc6a8572e95eb95aa298964fd54b5d0a206d3894ebf054e37f67322f7d134ab3d7cc8ff2466664d1a9c1ee |
memory/4812-7-0x0000000000400000-0x00000000005D4000-memory.dmp
memory/4812-11-0x00000000023B0000-0x00000000023B1000-memory.dmp
C:\Windows\SysWOW64\_rejoice51.exe
| MD5 | 5c7c571e3f754da751e125b4d377ef31 |
| SHA1 | df1233b2cae04a9bb1c9ab82036382f31cf05637 |
| SHA256 | 8f4b03e396e82bc2e7b1fa843ad9ed4209d10cd58953492e2b84433517cb9714 |
| SHA512 | 050bc1951a9e720c9abf8ee452842bad63e39c4db4446451e7a6d2dbba9f0f9681d77e25633b108a8eea8f8dea9a359f7559860fdbf3a256f6bebda702188664 |
memory/4812-13-0x0000000000400000-0x00000000005D4000-memory.dmp
memory/2296-15-0x0000000000400000-0x00000000005D4000-memory.dmp
C:\Program Files\Common Files\Microsoft Shared\MSINFO\Delet.bat
| MD5 | 06c202ea021eb56220e615e2b21bafc2 |
| SHA1 | 93dbc14d2d9b79e7c244bd8072c4d7729cd0283f |
| SHA256 | 8489c4e58aa775d4c810a558a87280a2059ae749e0c3cf3d5df40b0ae637f3dd |
| SHA512 | f572d7de7699ba199b6ab85fc2ae5839624c72694de54eae166745050fbe4d705a33273c6908db3175a8b40e0eec01026fa16a972e213d1fba9b25ddc11a3180 |