njrat | 053bb9bc1549cd2dc4e84b8d53735171ed1e62810cedb71c48210fe1487b8fb5

General

Target

053bb9bc1549cd2dc4e84b8d53735171ed1e62810cedb71c48210fe1487b8fb5.exe
Size

42KB
MD5

1d556a333267e4161f3d613ba5304de0
SHA1

bdb291aeeb0a30ae38285e3387f93c04405882ae
SHA256

053bb9bc1549cd2dc4e84b8d53735171ed1e62810cedb71c48210fe1487b8fb5
SHA512

f3ceec5f5188ac64455b70e0632d886cd51f36498a9dc6f31f0c83235556ce0afa05eb1e1e2a9cb6ec68553dba8dd44d4cbc8914a2d035bb406a00764c1e30bc
SSDEEP

384:SZeoNeHN0Vyoy77PosfygOE3z5umj2CnKs1jUNNNCP33hYCtVKwJR7AMb1VnCgrq:gXIKgl/wsfXNz2CKuUVupVZbLn2+L

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 3 IoCs

pid	Process
2812	Dllhost.exe
2056	Server.exe
1012	Server.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\USER\S-1-5-21-457978338-2990298471-2379561640-1000\Software\Microsoft\Windows\CurrentVersion\Run\Windows Update = "\"C:\\Windows\\Dllhost.exe\" .."	Dllhost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Windows Update = "\"C:\\Windows\\Dllhost.exe\" .."	Dllhost.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\Dllhost.exe	053bb9bc1549cd2dc4e84b8d53735171ed1e62810cedb71c48210fe1487b8fb5.exe
File opened for modification	C:\Windows\Dllhost.exe	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 5 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	053bb9bc1549cd2dc4e84b8d53735171ed1e62810cedb71c48210fe1487b8fb5.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Dllhost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Server.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Server.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
580	schtasks.exe

Suspicious behavior: GetForegroundWindowSpam 2 IoCs

pid	Process
1688	053bb9bc1549cd2dc4e84b8d53735171ed1e62810cedb71c48210fe1487b8fb5.exe
2812	Dllhost.exe

Suspicious use of AdjustPrivilegeToken 33 IoCs

description	pid	Process
Token: SeDebugPrivilege	2812	Dllhost.exe
Token: 33	2812	Dllhost.exe
Token: SeIncBasePriorityPrivilege	2812	Dllhost.exe
Token: 33	2812	Dllhost.exe
Token: SeIncBasePriorityPrivilege	2812	Dllhost.exe
Token: 33	2812	Dllhost.exe
Token: SeIncBasePriorityPrivilege	2812	Dllhost.exe
Token: 33	2812	Dllhost.exe
Token: SeIncBasePriorityPrivilege	2812	Dllhost.exe
Token: 33	2812	Dllhost.exe
Token: SeIncBasePriorityPrivilege	2812	Dllhost.exe
Token: 33	2812	Dllhost.exe
Token: SeIncBasePriorityPrivilege	2812	Dllhost.exe
Token: 33	2812	Dllhost.exe
Token: SeIncBasePriorityPrivilege	2812	Dllhost.exe
Token: 33	2812	Dllhost.exe
Token: SeIncBasePriorityPrivilege	2812	Dllhost.exe
Token: 33	2812	Dllhost.exe
Token: SeIncBasePriorityPrivilege	2812	Dllhost.exe
Token: 33	2812	Dllhost.exe
Token: SeIncBasePriorityPrivilege	2812	Dllhost.exe
Token: 33	2812	Dllhost.exe
Token: SeIncBasePriorityPrivilege	2812	Dllhost.exe
Token: 33	2812	Dllhost.exe
Token: SeIncBasePriorityPrivilege	2812	Dllhost.exe
Token: 33	2812	Dllhost.exe
Token: SeIncBasePriorityPrivilege	2812	Dllhost.exe
Token: 33	2812	Dllhost.exe
Token: SeIncBasePriorityPrivilege	2812	Dllhost.exe
Token: 33	2812	Dllhost.exe
Token: SeIncBasePriorityPrivilege	2812	Dllhost.exe
Token: 33	2812	Dllhost.exe
Token: SeIncBasePriorityPrivilege	2812	Dllhost.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 1688 wrote to memory of 2812	1688	053bb9bc1549cd2dc4e84b8d53735171ed1e62810cedb71c48210fe1487b8fb5.exe	30
PID 1688 wrote to memory of 2812	1688	053bb9bc1549cd2dc4e84b8d53735171ed1e62810cedb71c48210fe1487b8fb5.exe	30
PID 1688 wrote to memory of 2812	1688	053bb9bc1549cd2dc4e84b8d53735171ed1e62810cedb71c48210fe1487b8fb5.exe	30
PID 1688 wrote to memory of 2812	1688	053bb9bc1549cd2dc4e84b8d53735171ed1e62810cedb71c48210fe1487b8fb5.exe	30
PID 2812 wrote to memory of 580	2812	Dllhost.exe	31
PID 2812 wrote to memory of 580	2812	Dllhost.exe	31
PID 2812 wrote to memory of 580	2812	Dllhost.exe	31
PID 2812 wrote to memory of 580	2812	Dllhost.exe	31
PID 1096 wrote to memory of 2056	1096	taskeng.exe	34
PID 1096 wrote to memory of 2056	1096	taskeng.exe	34
PID 1096 wrote to memory of 2056	1096	taskeng.exe	34
PID 1096 wrote to memory of 2056	1096	taskeng.exe	34
PID 1096 wrote to memory of 1012	1096	taskeng.exe	35
PID 1096 wrote to memory of 1012	1096	taskeng.exe	35
PID 1096 wrote to memory of 1012	1096	taskeng.exe	35
PID 1096 wrote to memory of 1012	1096	taskeng.exe	35

C:\Users\Admin\AppData\Local\Temp\053bb9bc1549cd2dc4e84b8d53735171ed1e62810cedb71c48210fe1487b8fb5.exe
"C:\Users\Admin\AppData\Local\Temp\053bb9bc1549cd2dc4e84b8d53735171ed1e62810cedb71c48210fe1487b8fb5.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
PID:1688
- C:\Windows\Dllhost.exe
  "C:\Windows\Dllhost.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - Adds Run key to start application
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2812
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /sc minute /mo 1 /tn Server /tr C:\Users\Admin\AppData\Local\Temp/Server.exe
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:580

C:\Windows\system32\taskeng.exe
taskeng.exe {26E6147E-3811-4BE4-B64A-55E2D7FC3696} S-1-5-21-457978338-2990298471-2379561640-1000:WOUOSVRD\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:1096
- C:\Users\Admin\AppData\Local\Temp\Server.exe
  C:\Users\Admin\AppData\Local\Temp/Server.exe
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:2056
- C:\Users\Admin\AppData\Local\Temp\Server.exe
  C:\Users\Admin\AppData\Local\Temp/Server.exe
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:1012

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

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

C:\Windows\Dllhost.exe

Filesize
42KB

MD5
1d556a333267e4161f3d613ba5304de0

SHA1
bdb291aeeb0a30ae38285e3387f93c04405882ae

SHA256
053bb9bc1549cd2dc4e84b8d53735171ed1e62810cedb71c48210fe1487b8fb5

SHA512
f3ceec5f5188ac64455b70e0632d886cd51f36498a9dc6f31f0c83235556ce0afa05eb1e1e2a9cb6ec68553dba8dd44d4cbc8914a2d035bb406a00764c1e30bc

Download Submit
memory/1012-21-0x0000000000040000-0x0000000000050000-memory.dmp

Filesize
64KB

Download
memory/1688-0-0x00000000740DE000-0x00000000740DF000-memory.dmp

Filesize
4KB

Download
memory/1688-1-0x0000000000270000-0x0000000000280000-memory.dmp

Filesize
64KB

Download
memory/1688-2-0x00000000740D0000-0x00000000747BE000-memory.dmp

Filesize
6.9MB

Download
memory/1688-12-0x00000000740D0000-0x00000000747BE000-memory.dmp

Filesize
6.9MB

Download
memory/2056-19-0x0000000000A10000-0x0000000000A20000-memory.dmp

Filesize
64KB

Download
memory/2812-9-0x0000000000CC0000-0x0000000000CD0000-memory.dmp

Filesize
64KB

Download
memory/2812-10-0x00000000740D0000-0x00000000747BE000-memory.dmp

Filesize
6.9MB

Download
memory/2812-11-0x00000000740D0000-0x00000000747BE000-memory.dmp

Filesize
6.9MB

Download
memory/2812-15-0x00000000740D0000-0x00000000747BE000-memory.dmp

Filesize
6.9MB

Download
memory/2812-16-0x00000000740D0000-0x00000000747BE000-memory.dmp

Filesize
6.9MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads