Analysis Overview
SHA256
199199951d5ec31ad1f699ee996d96524e5022a8af45797777d16488224424d5
Threat Level: Known bad
The file SolararB5.1.exe was found to be: Known bad.
Malicious Activity Summary
Njrat family
Modifies Windows Firewall
Checks computer location settings
Executes dropped EXE
Drops startup file
Drops autorun.inf file
Drops file in System32 directory
Drops file in Windows directory
Drops file in Program Files directory
Enumerates physical storage devices
Event Triggered Execution: Netsh Helper DLL
Unsigned PE
Suspicious use of WriteProcessMemory
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: EnumeratesProcesses
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-06-22 16:48
Signatures
Njrat family
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-06-22 16:48
Reported
2024-06-22 16:51
Platform
win10v2004-20240611-en
Max time kernel
150s
Max time network
139s
Command Line
Signatures
Modifies Windows Firewall
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\netsh.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\netsh.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\netsh.exe | N/A |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-3665033694-1447845302-680750983-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\SolararB5.1.exe | N/A |
Drops startup file
| Description | Indicator | Process | Target |
| File opened for modification | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\2c030f9e6d6e7a75ab6016f5c301de1aWindows Update.exe | C:\Windows\server.exe | N/A |
| File created | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Explower.exe | C:\Windows\server.exe | N/A |
| File opened for modification | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Explower.exe | C:\Windows\server.exe | N/A |
| File created | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Microsoft Corporation.exe | C:\Windows\server.exe | N/A |
| File opened for modification | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Microsoft Corporation.exe | C:\Windows\server.exe | N/A |
| File created | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\2c030f9e6d6e7a75ab6016f5c301de1aWindows Update.exe | C:\Windows\server.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\server.exe | N/A |
Drops autorun.inf file
| Description | Indicator | Process | Target |
| File created | C:\autorun.inf | C:\Windows\server.exe | N/A |
| File opened for modification | C:\autorun.inf | C:\Windows\server.exe | N/A |
| File created | F:\autorun.inf | C:\Windows\server.exe | N/A |
| File opened for modification | F:\autorun.inf | C:\Windows\server.exe | N/A |
Drops file in System32 directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\SysWOW64\Explower.exe | C:\Windows\server.exe | N/A |
| File opened for modification | C:\Windows\SysWOW64\Explower.exe | C:\Windows\server.exe | N/A |
Drops file in Program Files directory
| Description | Indicator | Process | Target |
| File created | C:\Program Files (x86)\Explower.exe | C:\Windows\server.exe | N/A |
| File opened for modification | C:\Program Files (x86)\Explower.exe | C:\Windows\server.exe | N/A |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\server.exe | C:\Users\Admin\AppData\Local\Temp\SolararB5.1.exe | N/A |
| File opened for modification | C:\Windows\server.exe | C:\Windows\server.exe | N/A |
Enumerates physical storage devices
Event Triggered Execution: Netsh Helper DLL
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh | C:\Windows\SysWOW64\netsh.exe | N/A |
| Key queried | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh | C:\Windows\SysWOW64\netsh.exe | N/A |
| Key queried | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh | C:\Windows\SysWOW64\netsh.exe | N/A |
| Key value enumerated | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh | C:\Windows\SysWOW64\netsh.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh | C:\Windows\SysWOW64\netsh.exe | N/A |
| Key queried | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh | C:\Windows\SysWOW64\netsh.exe | N/A |
| Key value enumerated | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh | C:\Windows\SysWOW64\netsh.exe | N/A |
| Key value enumerated | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh | C:\Windows\SysWOW64\netsh.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh | C:\Windows\SysWOW64\netsh.exe | N/A |
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\server.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Windows\server.exe | N/A |
| Token: 33 | N/A | C:\Windows\server.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\server.exe | N/A |
| Token: 33 | N/A | C:\Windows\server.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\server.exe | N/A |
| Token: 33 | N/A | C:\Windows\server.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\server.exe | N/A |
| Token: 33 | N/A | C:\Windows\server.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\server.exe | N/A |
| Token: 33 | N/A | C:\Windows\server.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\server.exe | N/A |
| Token: 33 | N/A | C:\Windows\server.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\server.exe | N/A |
| Token: 33 | N/A | C:\Windows\server.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\server.exe | N/A |
| Token: 33 | N/A | C:\Windows\server.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\server.exe | N/A |
| Token: 33 | N/A | C:\Windows\server.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\server.exe | N/A |
| Token: 33 | N/A | C:\Windows\server.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\server.exe | N/A |
| Token: 33 | N/A | C:\Windows\server.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\server.exe | N/A |
| Token: 33 | N/A | C:\Windows\server.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\server.exe | N/A |
| Token: 33 | N/A | C:\Windows\server.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\server.exe | N/A |
| Token: 33 | N/A | C:\Windows\server.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\server.exe | N/A |
| Token: 33 | N/A | C:\Windows\server.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\server.exe | N/A |
| Token: 33 | N/A | C:\Windows\server.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\server.exe | N/A |
| Token: 33 | N/A | C:\Windows\server.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\server.exe | N/A |
| Token: 33 | N/A | C:\Windows\server.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\server.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\SolararB5.1.exe
"C:\Users\Admin\AppData\Local\Temp\SolararB5.1.exe"
C:\Windows\server.exe
"C:\Windows\server.exe"
C:\Windows\SysWOW64\netsh.exe
netsh firewall add allowedprogram "C:\Windows\server.exe" "server.exe" ENABLE
C:\Windows\SysWOW64\netsh.exe
netsh firewall delete allowedprogram "C:\Windows\server.exe"
C:\Windows\SysWOW64\netsh.exe
netsh firewall add allowedprogram "C:\Windows\server.exe" "server.exe" ENABLE
C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4280,i,6522675234395427298,2952738987384583032,262144 --variations-seed-version --mojo-platform-channel-handle=4360 /prefetch:8
Network
| Country | Destination | Domain | Proto |
| US | 13.107.42.16:443 | tcp | |
| US | 8.8.8.8:53 | 26.35.223.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 76.234.34.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 13.86.106.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 71.31.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| N/A | 127.0.0.1:446 | tcp | |
| N/A | 127.0.0.1:446 | tcp | |
| US | 8.8.8.8:53 | 28.118.140.52.in-addr.arpa | udp |
| N/A | 127.0.0.1:446 | tcp | |
| N/A | 127.0.0.1:446 | tcp | |
| N/A | 127.0.0.1:446 | tcp | |
| US | 8.8.8.8:53 | 14.227.111.52.in-addr.arpa | udp |
| N/A | 127.0.0.1:446 | tcp | |
| US | 8.8.8.8:53 | 157.123.68.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 206.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 92.12.20.2.in-addr.arpa | udp |
| N/A | 127.0.0.1:446 | tcp | |
| N/A | 127.0.0.1:446 | tcp | |
| N/A | 127.0.0.1:446 | tcp | |
| N/A | 127.0.0.1:446 | tcp | |
| N/A | 127.0.0.1:446 | tcp | |
| N/A | 127.0.0.1:446 | tcp | |
| N/A | 127.0.0.1:446 | tcp | |
| US | 199.232.210.172:80 | tcp | |
| US | 8.8.8.8:53 | 82.90.14.23.in-addr.arpa | udp |
| N/A | 127.0.0.1:446 | tcp | |
| N/A | 127.0.0.1:446 | tcp | |
| N/A | 127.0.0.1:446 | tcp | |
| N/A | 127.0.0.1:446 | tcp | |
| N/A | 127.0.0.1:446 | tcp | |
| N/A | 127.0.0.1:446 | tcp | |
| N/A | 127.0.0.1:446 | tcp | |
| N/A | 127.0.0.1:446 | tcp | |
| US | 8.8.8.8:53 | 80.90.14.23.in-addr.arpa | udp |
| N/A | 127.0.0.1:446 | tcp | |
| N/A | 127.0.0.1:446 | tcp | |
| N/A | 127.0.0.1:446 | tcp | |
| N/A | 127.0.0.1:446 | tcp | |
| N/A | 127.0.0.1:446 | tcp | |
| N/A | 127.0.0.1:446 | tcp | |
| N/A | 127.0.0.1:446 | tcp | |
| N/A | 127.0.0.1:446 | tcp | |
| N/A | 127.0.0.1:446 | tcp | |
| N/A | 127.0.0.1:446 | tcp | |
| N/A | 127.0.0.1:446 | tcp | |
| N/A | 127.0.0.1:446 | tcp | |
| N/A | 127.0.0.1:446 | tcp | |
| N/A | 127.0.0.1:446 | tcp |
Files
memory/4904-0-0x00000000750B2000-0x00000000750B3000-memory.dmp
memory/4904-1-0x00000000750B0000-0x0000000075661000-memory.dmp
memory/4904-2-0x00000000750B0000-0x0000000075661000-memory.dmp
C:\Windows\server.exe
| MD5 | dcff6f093bdaf3d7df4845f39834ea27 |
| SHA1 | d304cbd44a432a8e7b756f4bc4da770cd4abba8a |
| SHA256 | 199199951d5ec31ad1f699ee996d96524e5022a8af45797777d16488224424d5 |
| SHA512 | 842471ed4edcf6b1a9c5e6c4c06209a1ab8058619b5122b5b95c2917322f23f59004a275cce313dc1b44a831b42d2f77613cb79fb3ebaf94551e3d94b39a80cf |
memory/4904-13-0x00000000750B0000-0x0000000075661000-memory.dmp
memory/2852-14-0x00000000750B0000-0x0000000075661000-memory.dmp
memory/2852-16-0x00000000750B0000-0x0000000075661000-memory.dmp
memory/2852-15-0x00000000750B0000-0x0000000075661000-memory.dmp
C:\Users\Admin\AppData\Roaming\app
| MD5 | d43c5b07c128b116b7bc8faf7b8efa9d |
| SHA1 | dd3540ad4ae14b21b665d108cf4570c2dfa6a6fa |
| SHA256 | 80ad1cc7b3a784dad618a445af0c8cf3efa903f82a814756f2aaa7b57f45791f |
| SHA512 | 618b01e2b808e1954d011635dfdf63bc75855145208fc5cae33ce09c7e5b43cf978f6511beb311765e6920e728a290c9f9ced7563e40e8ff8d093d50fdc18334 |
memory/2852-55-0x00000000750B0000-0x0000000075661000-memory.dmp
memory/2852-54-0x00000000750B0000-0x0000000075661000-memory.dmp
memory/2852-56-0x00000000750B0000-0x0000000075661000-memory.dmp