njrat | be6230aa134cc4170d227a8bb79ee3ebb906b9a4281808369d07e224daefbd95

General

Target

be6230aa134cc4170d227a8bb79ee3ebb906b9a4281808369d07e224daefbd95.exe
Size

1.4MB
MD5

912148d711e9034409cee775b4a3ed4a
SHA1

7fb4201413ca87c17cc896862a4e22e8aef0dda6
SHA256

be6230aa134cc4170d227a8bb79ee3ebb906b9a4281808369d07e224daefbd95
SHA512

e82b4f0581864a1c05453e841453143c4a6d1636aca6b04b6fbd30a821667a8067973a778640f889c6000c311c2b10309a1bcfaf11730dc4cb105f728c198313
SSDEEP

24576:yFU+Az4c5BPIPooHdgCLhjPVRa5YAEye7ffWNQdQhP6uQ4vyg2+sQMFaTS:JT4P3HdfLhx45YV7nqQdavQaMQS

Score

10^/10

njrat discovery persistence trojan

Malware Config

Signatures

njRAT/Bladabindi
Widely used RAT written in .NET.
trojan njrat

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Java update.exe	Dllhost.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Java update.exe	Dllhost.exe

Executes dropped EXE 2 IoCs

pid	Process
1032	Server_protected.exe
2732	Dllhost.exe

Loads dropped DLL 4 IoCs

pid	Process
2072	be6230aa134cc4170d227a8bb79ee3ebb906b9a4281808369d07e224daefbd95.exe
2072	be6230aa134cc4170d227a8bb79ee3ebb906b9a4281808369d07e224daefbd95.exe
2072	be6230aa134cc4170d227a8bb79ee3ebb906b9a4281808369d07e224daefbd95.exe
1032	Server_protected.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Windows Update = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\Dllhost.exe\" .."	Dllhost.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Windows\CurrentVersion\Run\Windows Update = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\Dllhost.exe\" .."	Dllhost.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 17 IoCs

pid	Process
1032	Server_protected.exe
2732	Dllhost.exe
2732	Dllhost.exe
2732	Dllhost.exe
2732	Dllhost.exe
2732	Dllhost.exe
2732	Dllhost.exe
2732	Dllhost.exe
2732	Dllhost.exe
2732	Dllhost.exe
2732	Dllhost.exe
2732	Dllhost.exe
2732	Dllhost.exe
2732	Dllhost.exe
2732	Dllhost.exe
2732	Dllhost.exe
2732	Dllhost.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	be6230aa134cc4170d227a8bb79ee3ebb906b9a4281808369d07e224daefbd95.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Server_protected.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Dllhost.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1032	Server_protected.exe
2732	Dllhost.exe

Suspicious behavior: GetForegroundWindowSpam 2 IoCs

pid	Process
1032	Server_protected.exe
2732	Dllhost.exe

Suspicious use of AdjustPrivilegeToken 35 IoCs

description	pid	Process
Token: SeDebugPrivilege	2732	Dllhost.exe
Token: 33	2732	Dllhost.exe
Token: SeIncBasePriorityPrivilege	2732	Dllhost.exe
Token: 33	2732	Dllhost.exe
Token: SeIncBasePriorityPrivilege	2732	Dllhost.exe
Token: 33	2732	Dllhost.exe
Token: SeIncBasePriorityPrivilege	2732	Dllhost.exe
Token: 33	2732	Dllhost.exe
Token: SeIncBasePriorityPrivilege	2732	Dllhost.exe
Token: 33	2732	Dllhost.exe
Token: SeIncBasePriorityPrivilege	2732	Dllhost.exe
Token: 33	2732	Dllhost.exe
Token: SeIncBasePriorityPrivilege	2732	Dllhost.exe
Token: 33	2732	Dllhost.exe
Token: SeIncBasePriorityPrivilege	2732	Dllhost.exe
Token: 33	2732	Dllhost.exe
Token: SeIncBasePriorityPrivilege	2732	Dllhost.exe
Token: 33	2732	Dllhost.exe
Token: SeIncBasePriorityPrivilege	2732	Dllhost.exe
Token: 33	2732	Dllhost.exe
Token: SeIncBasePriorityPrivilege	2732	Dllhost.exe
Token: 33	2732	Dllhost.exe
Token: SeIncBasePriorityPrivilege	2732	Dllhost.exe
Token: 33	2732	Dllhost.exe
Token: SeIncBasePriorityPrivilege	2732	Dllhost.exe
Token: 33	2732	Dllhost.exe
Token: SeIncBasePriorityPrivilege	2732	Dllhost.exe
Token: 33	2732	Dllhost.exe
Token: SeIncBasePriorityPrivilege	2732	Dllhost.exe
Token: 33	2732	Dllhost.exe
Token: SeIncBasePriorityPrivilege	2732	Dllhost.exe
Token: 33	2732	Dllhost.exe
Token: SeIncBasePriorityPrivilege	2732	Dllhost.exe
Token: 33	2732	Dllhost.exe
Token: SeIncBasePriorityPrivilege	2732	Dllhost.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1032	Server_protected.exe
2732	Dllhost.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2072 wrote to memory of 1032	2072	be6230aa134cc4170d227a8bb79ee3ebb906b9a4281808369d07e224daefbd95.exe	30
PID 2072 wrote to memory of 1032	2072	be6230aa134cc4170d227a8bb79ee3ebb906b9a4281808369d07e224daefbd95.exe	30
PID 2072 wrote to memory of 1032	2072	be6230aa134cc4170d227a8bb79ee3ebb906b9a4281808369d07e224daefbd95.exe	30
PID 2072 wrote to memory of 1032	2072	be6230aa134cc4170d227a8bb79ee3ebb906b9a4281808369d07e224daefbd95.exe	30
PID 1032 wrote to memory of 2732	1032	Server_protected.exe	32
PID 1032 wrote to memory of 2732	1032	Server_protected.exe	32
PID 1032 wrote to memory of 2732	1032	Server_protected.exe	32
PID 1032 wrote to memory of 2732	1032	Server_protected.exe	32

C:\Users\Admin\AppData\Local\Temp\be6230aa134cc4170d227a8bb79ee3ebb906b9a4281808369d07e224daefbd95.exe
"C:\Users\Admin\AppData\Local\Temp\be6230aa134cc4170d227a8bb79ee3ebb906b9a4281808369d07e224daefbd95.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2072
- C:\Users\Admin\AppData\Local\Temp\Server_protected.exe
  "C:\Users\Admin\AppData\Local\Temp\Server_protected.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1032
- - C:\Users\Admin\AppData\Local\Temp\Dllhost.exe
    "C:\Users\Admin\AppData\Local\Temp\Dllhost.exe"
    3⤵
    - Drops startup file
    - Executes dropped EXE
    - Adds Run key to start application
    - Suspicious use of NtSetInformationThreadHideFromDebugger
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetWindowsHookEx
    PID:2732

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

\Users\Admin\AppData\Local\Temp\Server_protected.exe

Filesize
1.1MB

MD5
8d67939d6dc3b76814097e987d758f17

SHA1
2fb6734a6f6e282d9b427c37d32121ba200cec8a

SHA256
1e1c417f6dcb68c73ccb1bcb969060495bf43159315dd92ece950b06bf2bd808

SHA512
6f960c7a001e6bafa93094c198e9e19b23aabc8133a50b95e9ddabc1577a98aac4871defe6a6544da1e4d79fe1f9f5c8e723d156cf535a29c9f57b102697f9e5

Download Submit
memory/1032-16-0x0000000073EFE000-0x0000000073EFF000-memory.dmp

Filesize
4KB

Download
memory/1032-17-0x0000000000F30000-0x00000000012A4000-memory.dmp

Filesize
3.5MB

Download
memory/1032-18-0x0000000000F30000-0x00000000012A4000-memory.dmp

Filesize
3.5MB

Download
memory/1032-26-0x00000000065B0000-0x0000000006924000-memory.dmp

Filesize
3.5MB

Download
memory/1032-30-0x0000000000F30000-0x00000000012A4000-memory.dmp

Filesize
3.5MB

Download
memory/2072-12-0x0000000003F50000-0x00000000042C4000-memory.dmp

Filesize
3.5MB

Download
memory/2072-13-0x0000000003F50000-0x00000000042C4000-memory.dmp

Filesize
3.5MB

Download
memory/2072-28-0x0000000003F50000-0x00000000042C4000-memory.dmp

Filesize
3.5MB

Download
memory/2732-27-0x0000000000B90000-0x0000000000F04000-memory.dmp

Filesize
3.5MB

Download
memory/2732-31-0x0000000000B90000-0x0000000000F04000-memory.dmp

Filesize
3.5MB

Download
memory/2732-32-0x0000000000B90000-0x0000000000F04000-memory.dmp

Filesize
3.5MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads