Analysis Overview
SHA256
4e351fed9605d912eb226a3925148012201c99875f38a12c6d95c7fdbf5f5e3e
Threat Level: Known bad
The file 4e351fed9605d912eb226a3925148012201c99875f38a12c6d95c7fdbf5f5e3e.exe was found to be: Known bad.
Malicious Activity Summary
Njrat family
njRAT/Bladabindi
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Drops startup file
Adds Run key to start application
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Unsigned PE
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of WriteProcessMemory
Suspicious use of AdjustPrivilegeToken
Scheduled Task/Job: Scheduled Task
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-09-28 08:34
Signatures
Njrat family
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-09-28 08:34
Reported
2024-09-28 08:36
Platform
win7-20240903-en
Max time kernel
149s
Max time network
150s
Command Line
Signatures
njRAT/Bladabindi
Drops startup file
| Description | Indicator | Process | Target |
| File created | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Java update.exe | C:\Users\Admin\AppData\Roaming\Dllhost.exe | N/A |
| File opened for modification | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Java update.exe | C:\Users\Admin\AppData\Roaming\Dllhost.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\Dllhost.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\Server.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\Server.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\4e351fed9605d912eb226a3925148012201c99875f38a12c6d95c7fdbf5f5e3e.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000\Software\Microsoft\Windows\CurrentVersion\Run\Windows Update = "\"C:\\Users\\Admin\\AppData\\Roaming\\Dllhost.exe\" .." | C:\Users\Admin\AppData\Roaming\Dllhost.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Windows Update = "\"C:\\Users\\Admin\\AppData\\Roaming\\Dllhost.exe\" .." | C:\Users\Admin\AppData\Roaming\Dllhost.exe | N/A |
Enumerates physical storage devices
System Location Discovery: System Language Discovery
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\4e351fed9605d912eb226a3925148012201c99875f38a12c6d95c7fdbf5f5e3e.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Roaming\Dllhost.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\schtasks.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\Server.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\Server.exe | N/A |
Scheduled Task/Job: Scheduled Task
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\schtasks.exe | N/A |
Suspicious behavior: GetForegroundWindowSpam
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\4e351fed9605d912eb226a3925148012201c99875f38a12c6d95c7fdbf5f5e3e.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\Dllhost.exe | N/A |
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\4e351fed9605d912eb226a3925148012201c99875f38a12c6d95c7fdbf5f5e3e.exe
"C:\Users\Admin\AppData\Local\Temp\4e351fed9605d912eb226a3925148012201c99875f38a12c6d95c7fdbf5f5e3e.exe"
C:\Users\Admin\AppData\Roaming\Dllhost.exe
"C:\Users\Admin\AppData\Roaming\Dllhost.exe"
C:\Windows\SysWOW64\schtasks.exe
schtasks /create /sc minute /mo 1 /tn Server /tr C:\Users\Admin\AppData\Local\Temp/Server.exe
C:\Windows\system32\taskeng.exe
taskeng.exe {0EC55BC8-0113-4384-B090-2355B2BFE7C6} S-1-5-21-3533259084-2542256011-65585152-1000:XPAJOTIY\Admin:Interactive:[1]
C:\Users\Admin\AppData\Local\Temp\Server.exe
C:\Users\Admin\AppData\Local\Temp/Server.exe
C:\Users\Admin\AppData\Local\Temp\Server.exe
C:\Users\Admin\AppData\Local\Temp/Server.exe
Network
| Country | Destination | Domain | Proto |
| N/A | 192.168.234.154:5555 | tcp | |
| N/A | 192.168.234.154:5555 | tcp | |
| N/A | 192.168.234.154:5555 | tcp | |
| N/A | 192.168.234.154:5555 | tcp | |
| N/A | 192.168.234.154:5555 | tcp | |
| N/A | 192.168.234.154:5555 | tcp |
Files
memory/1292-0-0x0000000074201000-0x0000000074202000-memory.dmp
memory/1292-1-0x0000000074200000-0x00000000747AB000-memory.dmp
memory/1292-2-0x0000000074200000-0x00000000747AB000-memory.dmp
C:\Users\Admin\AppData\Roaming\Dllhost.exe
| MD5 | 0da6d861d4fd16f05b72a3d28aad110e |
| SHA1 | c682646726dab668e92a5412b35f335af11d3156 |
| SHA256 | 4e351fed9605d912eb226a3925148012201c99875f38a12c6d95c7fdbf5f5e3e |
| SHA512 | 8e58eff920e4570ec1889b064a5c44d463e110671bca26ae162fbf5ea5a0d78a7d612d35e0d29ed5def0a759d4cb23e8ad465e25ad05fcffe31d52beb1703037 |
memory/2376-10-0x0000000074200000-0x00000000747AB000-memory.dmp
memory/2376-11-0x0000000074200000-0x00000000747AB000-memory.dmp
memory/2376-12-0x0000000074200000-0x00000000747AB000-memory.dmp
memory/1292-13-0x0000000074200000-0x00000000747AB000-memory.dmp
memory/2376-16-0x0000000074200000-0x00000000747AB000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-09-28 08:34
Reported
2024-09-28 08:36
Platform
win10v2004-20240802-en
Max time kernel
149s
Max time network
149s
Command Line
Signatures
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-2170637797-568393320-3232933035-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\4e351fed9605d912eb226a3925148012201c99875f38a12c6d95c7fdbf5f5e3e.exe | N/A |
Drops startup file
| Description | Indicator | Process | Target |
| File created | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Java update.exe | C:\Users\Admin\AppData\Roaming\Dllhost.exe | N/A |
| File opened for modification | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Java update.exe | C:\Users\Admin\AppData\Roaming\Dllhost.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\Dllhost.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\Server.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\Server.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-2170637797-568393320-3232933035-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Windows Update = "\"C:\\Users\\Admin\\AppData\\Roaming\\Dllhost.exe\" .." | C:\Users\Admin\AppData\Roaming\Dllhost.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Windows Update = "\"C:\\Users\\Admin\\AppData\\Roaming\\Dllhost.exe\" .." | C:\Users\Admin\AppData\Roaming\Dllhost.exe | N/A |
Enumerates physical storage devices
System Location Discovery: System Language Discovery
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\4e351fed9605d912eb226a3925148012201c99875f38a12c6d95c7fdbf5f5e3e.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Roaming\Dllhost.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\schtasks.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\Server.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\Server.exe | N/A |
Scheduled Task/Job: Scheduled Task
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\schtasks.exe | N/A |
Suspicious behavior: GetForegroundWindowSpam
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\4e351fed9605d912eb226a3925148012201c99875f38a12c6d95c7fdbf5f5e3e.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\Dllhost.exe | N/A |
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 1572 wrote to memory of 4128 | N/A | C:\Users\Admin\AppData\Local\Temp\4e351fed9605d912eb226a3925148012201c99875f38a12c6d95c7fdbf5f5e3e.exe | C:\Users\Admin\AppData\Roaming\Dllhost.exe |
| PID 1572 wrote to memory of 4128 | N/A | C:\Users\Admin\AppData\Local\Temp\4e351fed9605d912eb226a3925148012201c99875f38a12c6d95c7fdbf5f5e3e.exe | C:\Users\Admin\AppData\Roaming\Dllhost.exe |
| PID 1572 wrote to memory of 4128 | N/A | C:\Users\Admin\AppData\Local\Temp\4e351fed9605d912eb226a3925148012201c99875f38a12c6d95c7fdbf5f5e3e.exe | C:\Users\Admin\AppData\Roaming\Dllhost.exe |
| PID 4128 wrote to memory of 3812 | N/A | C:\Users\Admin\AppData\Roaming\Dllhost.exe | C:\Windows\SysWOW64\schtasks.exe |
| PID 4128 wrote to memory of 3812 | N/A | C:\Users\Admin\AppData\Roaming\Dllhost.exe | C:\Windows\SysWOW64\schtasks.exe |
| PID 4128 wrote to memory of 3812 | N/A | C:\Users\Admin\AppData\Roaming\Dllhost.exe | C:\Windows\SysWOW64\schtasks.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\4e351fed9605d912eb226a3925148012201c99875f38a12c6d95c7fdbf5f5e3e.exe
"C:\Users\Admin\AppData\Local\Temp\4e351fed9605d912eb226a3925148012201c99875f38a12c6d95c7fdbf5f5e3e.exe"
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=3760,i,1828333185976713750,7918646547767660928,262144 --variations-seed-version --mojo-platform-channel-handle=4348 /prefetch:8
C:\Users\Admin\AppData\Roaming\Dllhost.exe
"C:\Users\Admin\AppData\Roaming\Dllhost.exe"
C:\Windows\SysWOW64\schtasks.exe
schtasks /create /sc minute /mo 1 /tn Server /tr C:\Users\Admin\AppData\Local\Temp/Server.exe
C:\Users\Admin\AppData\Local\Temp\Server.exe
C:\Users\Admin\AppData\Local\Temp/Server.exe
C:\Users\Admin\AppData\Local\Temp\Server.exe
C:\Users\Admin\AppData\Local\Temp/Server.exe
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 8.8.8.8.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 209.205.72.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 240.221.184.93.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 22.160.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 149.220.183.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 196.249.167.52.in-addr.arpa | udp |
| N/A | 192.168.234.154:5555 | tcp | |
| US | 8.8.8.8:53 | 56.163.245.4.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 18.31.95.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 98.117.19.2.in-addr.arpa | udp |
| N/A | 192.168.234.154:5555 | tcp | |
| US | 8.8.8.8:53 | 88.210.23.2.in-addr.arpa | udp |
| N/A | 192.168.234.154:5555 | tcp | |
| US | 8.8.8.8:53 | 83.210.23.2.in-addr.arpa | udp |
| N/A | 192.168.234.154:5555 | tcp | |
| N/A | 192.168.234.154:5555 | tcp | |
| N/A | 192.168.234.154:5555 | tcp |
Files
memory/1572-0-0x0000000075182000-0x0000000075183000-memory.dmp
memory/1572-1-0x0000000075180000-0x0000000075731000-memory.dmp
memory/1572-2-0x0000000075180000-0x0000000075731000-memory.dmp
C:\Users\Admin\AppData\Roaming\Dllhost.exe
| MD5 | 0da6d861d4fd16f05b72a3d28aad110e |
| SHA1 | c682646726dab668e92a5412b35f335af11d3156 |
| SHA256 | 4e351fed9605d912eb226a3925148012201c99875f38a12c6d95c7fdbf5f5e3e |
| SHA512 | 8e58eff920e4570ec1889b064a5c44d463e110671bca26ae162fbf5ea5a0d78a7d612d35e0d29ed5def0a759d4cb23e8ad465e25ad05fcffe31d52beb1703037 |
memory/4128-13-0x0000000075180000-0x0000000075731000-memory.dmp
memory/1572-12-0x0000000075180000-0x0000000075731000-memory.dmp
memory/4128-14-0x0000000075180000-0x0000000075731000-memory.dmp
memory/4128-15-0x0000000075180000-0x0000000075731000-memory.dmp
memory/4128-18-0x0000000075180000-0x0000000075731000-memory.dmp
memory/4800-21-0x0000000075180000-0x0000000075731000-memory.dmp
memory/4800-22-0x0000000075180000-0x0000000075731000-memory.dmp
memory/4800-23-0x0000000075180000-0x0000000075731000-memory.dmp
memory/4800-25-0x0000000075180000-0x0000000075731000-memory.dmp
C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\Server.exe.log
| MD5 | 42157868488d3ef98c00e3fa12f064be |
| SHA1 | aad391be9ac3f6ce1ced49583690486a5f4186fb |
| SHA256 | b9520170e84597186ba5cc223b9c2773f70d0cda088950bae2182e3b2237995c |
| SHA512 | 8f4a4bd63ceefc34158ea23f3a73dcc2848eeacdba8355d1251a96b4e0c18e2f3b0c4939be359f874f81fe4ee63283b8be43a70fe2dbaa2e64784333d10a2471 |