Analysis Overview
SHA256
ba26254def1f881d9b5f0444745b8883e51bc09950e36584dbbab1ad5d370383
Threat Level: Known bad
The file 1722c8695ca31163d93c6cf56f0c8530.bin was found to be: Known bad.
Malicious Activity Summary
Njrat family
njRAT/Bladabindi
Drops startup file
Executes dropped EXE
Checks computer location settings
Adds Run key to start application
Drops file in Windows directory
Enumerates physical storage devices
Unsigned PE
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-01-22 01:01
Signatures
Njrat family
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-01-22 01:01
Reported
2024-01-22 01:04
Platform
win7-20231215-en
Max time kernel
149s
Max time network
143s
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:\Windows\Dllhost.exe | N/A |
| File opened for modification | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Java update.exe | C:\Windows\Dllhost.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\Dllhost.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-928733405-3780110381-2966456290-1000\Software\Microsoft\Windows\CurrentVersion\Run\Windows Update = "\"C:\\Windows\\Dllhost.exe\" .." | C:\Windows\Dllhost.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Windows Update = "\"C:\\Windows\\Dllhost.exe\" .." | C:\Windows\Dllhost.exe | N/A |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\Dllhost.exe | C:\Users\Admin\AppData\Local\Temp\ef432c721d03728f4828aaecd2db265474fc13306b0d0f042df5025f2b4d9e2e.exe | N/A |
| File opened for modification | C:\Windows\Dllhost.exe | C:\Windows\Dllhost.exe | N/A |
Enumerates physical storage devices
Suspicious behavior: GetForegroundWindowSpam
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\ef432c721d03728f4828aaecd2db265474fc13306b0d0f042df5025f2b4d9e2e.exe | N/A |
| N/A | N/A | C:\Windows\Dllhost.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Windows\Dllhost.exe | N/A |
| Token: 33 | N/A | C:\Windows\Dllhost.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\Dllhost.exe | N/A |
| Token: 33 | N/A | C:\Windows\Dllhost.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\Dllhost.exe | N/A |
| Token: 33 | N/A | C:\Windows\Dllhost.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\Dllhost.exe | N/A |
| Token: 33 | N/A | C:\Windows\Dllhost.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\Dllhost.exe | N/A |
| Token: 33 | N/A | C:\Windows\Dllhost.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\Dllhost.exe | N/A |
| Token: 33 | N/A | C:\Windows\Dllhost.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\Dllhost.exe | N/A |
| Token: 33 | N/A | C:\Windows\Dllhost.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\Dllhost.exe | N/A |
| Token: 33 | N/A | C:\Windows\Dllhost.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\Dllhost.exe | N/A |
| Token: 33 | N/A | C:\Windows\Dllhost.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\Dllhost.exe | N/A |
| Token: 33 | N/A | C:\Windows\Dllhost.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\Dllhost.exe | N/A |
| Token: 33 | N/A | C:\Windows\Dllhost.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\Dllhost.exe | N/A |
| Token: 33 | N/A | C:\Windows\Dllhost.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\Dllhost.exe | N/A |
| Token: 33 | N/A | C:\Windows\Dllhost.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\Dllhost.exe | N/A |
| Token: 33 | N/A | C:\Windows\Dllhost.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\Dllhost.exe | N/A |
| Token: 33 | N/A | C:\Windows\Dllhost.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\Dllhost.exe | N/A |
| Token: 33 | N/A | C:\Windows\Dllhost.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\Dllhost.exe | N/A |
| Token: 33 | N/A | C:\Windows\Dllhost.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\Dllhost.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 1256 wrote to memory of 2408 | N/A | C:\Users\Admin\AppData\Local\Temp\ef432c721d03728f4828aaecd2db265474fc13306b0d0f042df5025f2b4d9e2e.exe | C:\Windows\Dllhost.exe |
| PID 1256 wrote to memory of 2408 | N/A | C:\Users\Admin\AppData\Local\Temp\ef432c721d03728f4828aaecd2db265474fc13306b0d0f042df5025f2b4d9e2e.exe | C:\Windows\Dllhost.exe |
| PID 1256 wrote to memory of 2408 | N/A | C:\Users\Admin\AppData\Local\Temp\ef432c721d03728f4828aaecd2db265474fc13306b0d0f042df5025f2b4d9e2e.exe | C:\Windows\Dllhost.exe |
| PID 1256 wrote to memory of 2408 | N/A | C:\Users\Admin\AppData\Local\Temp\ef432c721d03728f4828aaecd2db265474fc13306b0d0f042df5025f2b4d9e2e.exe | C:\Windows\Dllhost.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\ef432c721d03728f4828aaecd2db265474fc13306b0d0f042df5025f2b4d9e2e.exe
"C:\Users\Admin\AppData\Local\Temp\ef432c721d03728f4828aaecd2db265474fc13306b0d0f042df5025f2b4d9e2e.exe"
C:\Windows\Dllhost.exe
"C:\Windows\Dllhost.exe"
Network
| Country | Destination | Domain | Proto |
| RU | 178.187.164.4:7777 | tcp | |
| RU | 178.187.164.4:7777 | tcp | |
| RU | 178.187.164.4:7777 | tcp | |
| RU | 178.187.164.4:7777 | tcp | |
| RU | 178.187.164.4:7777 | tcp | |
| RU | 178.187.164.4:7777 | tcp |
Files
memory/1256-0-0x0000000000250000-0x0000000000262000-memory.dmp
memory/1256-1-0x0000000073DB0000-0x000000007449E000-memory.dmp
memory/1256-2-0x0000000004B70000-0x0000000004BB0000-memory.dmp
C:\Windows\Dllhost.exe
| MD5 | 1722c8695ca31163d93c6cf56f0c8530 |
| SHA1 | aa81bc701216ec1441565275c0bfab69376757a6 |
| SHA256 | ef432c721d03728f4828aaecd2db265474fc13306b0d0f042df5025f2b4d9e2e |
| SHA512 | 50830a24bb50df4db8f78522f9b4f65f689fc75d6503c1b4c8a4bb7a662e340adf3f80211523d90a4b838c1fc00d1dc01b1711ab954670b2f0ff609e9d926a1d |
memory/2408-9-0x0000000000010000-0x0000000000022000-memory.dmp
memory/2408-10-0x0000000073DB0000-0x000000007449E000-memory.dmp
memory/2408-11-0x0000000004BA0000-0x0000000004BE0000-memory.dmp
memory/1256-12-0x0000000073DB0000-0x000000007449E000-memory.dmp
memory/2408-14-0x0000000073DB0000-0x000000007449E000-memory.dmp
memory/2408-15-0x0000000004BA0000-0x0000000004BE0000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-01-22 01:01
Reported
2024-01-22 01:04
Platform
win10v2004-20231215-en
Max time kernel
149s
Max time network
148s
Command Line
Signatures
njRAT/Bladabindi
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\ef432c721d03728f4828aaecd2db265474fc13306b0d0f042df5025f2b4d9e2e.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:\Windows\Dllhost.exe | N/A |
| File opened for modification | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Java update.exe | C:\Windows\Dllhost.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\Dllhost.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Windows Update = "\"C:\\Windows\\Dllhost.exe\" .." | C:\Windows\Dllhost.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Windows Update = "\"C:\\Windows\\Dllhost.exe\" .." | C:\Windows\Dllhost.exe | N/A |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\Dllhost.exe | C:\Users\Admin\AppData\Local\Temp\ef432c721d03728f4828aaecd2db265474fc13306b0d0f042df5025f2b4d9e2e.exe | N/A |
| File opened for modification | C:\Windows\Dllhost.exe | C:\Windows\Dllhost.exe | N/A |
Enumerates physical storage devices
Suspicious behavior: GetForegroundWindowSpam
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\ef432c721d03728f4828aaecd2db265474fc13306b0d0f042df5025f2b4d9e2e.exe | N/A |
| N/A | N/A | C:\Windows\Dllhost.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Windows\Dllhost.exe | N/A |
| Token: 33 | N/A | C:\Windows\Dllhost.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\Dllhost.exe | N/A |
| Token: 33 | N/A | C:\Windows\Dllhost.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\Dllhost.exe | N/A |
| Token: 33 | N/A | C:\Windows\Dllhost.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\Dllhost.exe | N/A |
| Token: 33 | N/A | C:\Windows\Dllhost.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\Dllhost.exe | N/A |
| Token: 33 | N/A | C:\Windows\Dllhost.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\Dllhost.exe | N/A |
| Token: 33 | N/A | C:\Windows\Dllhost.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\Dllhost.exe | N/A |
| Token: 33 | N/A | C:\Windows\Dllhost.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\Dllhost.exe | N/A |
| Token: 33 | N/A | C:\Windows\Dllhost.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\Dllhost.exe | N/A |
| Token: 33 | N/A | C:\Windows\Dllhost.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\Dllhost.exe | N/A |
| Token: 33 | N/A | C:\Windows\Dllhost.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\Dllhost.exe | N/A |
| Token: 33 | N/A | C:\Windows\Dllhost.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\Dllhost.exe | N/A |
| Token: 33 | N/A | C:\Windows\Dllhost.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\Dllhost.exe | N/A |
| Token: 33 | N/A | C:\Windows\Dllhost.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\Dllhost.exe | N/A |
| Token: 33 | N/A | C:\Windows\Dllhost.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\Dllhost.exe | N/A |
| Token: 33 | N/A | C:\Windows\Dllhost.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\Dllhost.exe | N/A |
| Token: 33 | N/A | C:\Windows\Dllhost.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\Dllhost.exe | N/A |
| Token: 33 | N/A | C:\Windows\Dllhost.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\Dllhost.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 4692 wrote to memory of 4492 | N/A | C:\Users\Admin\AppData\Local\Temp\ef432c721d03728f4828aaecd2db265474fc13306b0d0f042df5025f2b4d9e2e.exe | C:\Windows\Dllhost.exe |
| PID 4692 wrote to memory of 4492 | N/A | C:\Users\Admin\AppData\Local\Temp\ef432c721d03728f4828aaecd2db265474fc13306b0d0f042df5025f2b4d9e2e.exe | C:\Windows\Dllhost.exe |
| PID 4692 wrote to memory of 4492 | N/A | C:\Users\Admin\AppData\Local\Temp\ef432c721d03728f4828aaecd2db265474fc13306b0d0f042df5025f2b4d9e2e.exe | C:\Windows\Dllhost.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\ef432c721d03728f4828aaecd2db265474fc13306b0d0f042df5025f2b4d9e2e.exe
"C:\Users\Admin\AppData\Local\Temp\ef432c721d03728f4828aaecd2db265474fc13306b0d0f042df5025f2b4d9e2e.exe"
C:\Windows\Dllhost.exe
"C:\Windows\Dllhost.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 154.239.44.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 240.221.184.93.in-addr.arpa | udp |
| US | 138.91.171.81:80 | tcp | |
| US | 8.8.8.8:53 | 72.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 241.150.49.20.in-addr.arpa | udp |
| RU | 178.187.164.4:7777 | tcp | |
| US | 8.8.8.8:53 | 178.223.142.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 50.23.12.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 171.39.242.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 140.71.91.104.in-addr.arpa | udp |
| RU | 178.187.164.4:7777 | tcp | |
| RU | 178.187.164.4:7777 | tcp | |
| US | 8.8.8.8:53 | 209.178.17.96.in-addr.arpa | udp |
| RU | 178.187.164.4:7777 | tcp | |
| US | 8.8.8.8:53 | 22.236.111.52.in-addr.arpa | udp |
| RU | 178.187.164.4:7777 | tcp | |
| RU | 178.187.164.4:7777 | tcp |
Files
memory/4692-0-0x0000000000AF0000-0x0000000000B02000-memory.dmp
memory/4692-1-0x0000000074F40000-0x00000000756F0000-memory.dmp
memory/4692-2-0x00000000054A0000-0x000000000553C000-memory.dmp
memory/4692-3-0x00000000056A0000-0x00000000056B0000-memory.dmp
memory/4692-4-0x0000000005D60000-0x0000000006304000-memory.dmp
memory/4692-5-0x00000000058E0000-0x0000000005972000-memory.dmp
C:\Windows\Dllhost.exe
| MD5 | 1722c8695ca31163d93c6cf56f0c8530 |
| SHA1 | aa81bc701216ec1441565275c0bfab69376757a6 |
| SHA256 | ef432c721d03728f4828aaecd2db265474fc13306b0d0f042df5025f2b4d9e2e |
| SHA512 | 50830a24bb50df4db8f78522f9b4f65f689fc75d6503c1b4c8a4bb7a662e340adf3f80211523d90a4b838c1fc00d1dc01b1711ab954670b2f0ff609e9d926a1d |
memory/4492-16-0x0000000074F40000-0x00000000756F0000-memory.dmp
memory/4692-15-0x0000000074F40000-0x00000000756F0000-memory.dmp
memory/4492-17-0x0000000005660000-0x0000000005670000-memory.dmp
memory/4492-19-0x0000000005A20000-0x0000000005A2A000-memory.dmp
memory/4492-20-0x0000000074F40000-0x00000000756F0000-memory.dmp
memory/4492-21-0x0000000005660000-0x0000000005670000-memory.dmp