njrat | 56f285a53d29f7f9db72780ceaf8a053dda0d9f6a8410bc4ab493b830a965e9f

General

Target

56f285a53d29f7f9db72780ceaf8a053dda0d9f6a8410bc4ab493b830a965e9f.exe
Size

164KB
MD5

1ebb888eb774b33e4f91d7dad2c00737
SHA1

f272c1a38563aa52d40dad5234ec3a5284768e26
SHA256

56f285a53d29f7f9db72780ceaf8a053dda0d9f6a8410bc4ab493b830a965e9f
SHA512

beb867449918c2ace20abf0b92654c6eee5bca74dc4af8053cb31f838775e96350e40c4a6ea7067d24c4f53b5b767d6e343623ef8faa37847165c82a00cff1c6
SSDEEP

3072:8w11/wTvYZDDNF90qhRb70L8czxE2YY6q9bLzl6fHMEBuo3:8wZD9b70wczSTYh9bAlD3

Score

10^/10

njrat discovery persistence trojan

Malware Config

Signatures

Njrat family
njrat
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\StartupHelper.exe	StartupHelper.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\StartupHelper.exe	StartupHelper.exe

Executes dropped EXE 1 IoCs

pid	Process
2776	StartupHelper.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-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Windows\CurrentVersion\Run\StartupHelper.exe = "\"C:\\Windows\\StartupHelper.exe\" .."	StartupHelper.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\StartupHelper.exe = "\"C:\\Windows\\StartupHelper.exe\" .."	StartupHelper.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\Windows\StartupHelper.exe	56f285a53d29f7f9db72780ceaf8a053dda0d9f6a8410bc4ab493b830a965e9f.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 6 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	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	StartupHelper.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	56f285a53d29f7f9db72780ceaf8a053dda0d9f6a8410bc4ab493b830a965e9f.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs

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

persistence execution

Scheduled Task

T1053.005

pid	Process
2924	schtasks.exe
2892	schtasks.exe

Suspicious use of AdjustPrivilegeToken 27 IoCs

description	pid	Process
Token: SeDebugPrivilege	2776	StartupHelper.exe
Token: 33	2776	StartupHelper.exe
Token: SeIncBasePriorityPrivilege	2776	StartupHelper.exe
Token: 33	2776	StartupHelper.exe
Token: SeIncBasePriorityPrivilege	2776	StartupHelper.exe
Token: 33	2776	StartupHelper.exe
Token: SeIncBasePriorityPrivilege	2776	StartupHelper.exe
Token: 33	2776	StartupHelper.exe
Token: SeIncBasePriorityPrivilege	2776	StartupHelper.exe
Token: 33	2776	StartupHelper.exe
Token: SeIncBasePriorityPrivilege	2776	StartupHelper.exe
Token: 33	2776	StartupHelper.exe
Token: SeIncBasePriorityPrivilege	2776	StartupHelper.exe
Token: 33	2776	StartupHelper.exe
Token: SeIncBasePriorityPrivilege	2776	StartupHelper.exe
Token: 33	2776	StartupHelper.exe
Token: SeIncBasePriorityPrivilege	2776	StartupHelper.exe
Token: 33	2776	StartupHelper.exe
Token: SeIncBasePriorityPrivilege	2776	StartupHelper.exe
Token: 33	2776	StartupHelper.exe
Token: SeIncBasePriorityPrivilege	2776	StartupHelper.exe
Token: 33	2776	StartupHelper.exe
Token: SeIncBasePriorityPrivilege	2776	StartupHelper.exe
Token: 33	2776	StartupHelper.exe
Token: SeIncBasePriorityPrivilege	2776	StartupHelper.exe
Token: 33	2776	StartupHelper.exe
Token: SeIncBasePriorityPrivilege	2776	StartupHelper.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 2248 wrote to memory of 932	2248	56f285a53d29f7f9db72780ceaf8a053dda0d9f6a8410bc4ab493b830a965e9f.exe	29
PID 2248 wrote to memory of 932	2248	56f285a53d29f7f9db72780ceaf8a053dda0d9f6a8410bc4ab493b830a965e9f.exe	29
PID 2248 wrote to memory of 932	2248	56f285a53d29f7f9db72780ceaf8a053dda0d9f6a8410bc4ab493b830a965e9f.exe	29
PID 2248 wrote to memory of 932	2248	56f285a53d29f7f9db72780ceaf8a053dda0d9f6a8410bc4ab493b830a965e9f.exe	29
PID 2248 wrote to memory of 2924	2248	56f285a53d29f7f9db72780ceaf8a053dda0d9f6a8410bc4ab493b830a965e9f.exe	31
PID 2248 wrote to memory of 2924	2248	56f285a53d29f7f9db72780ceaf8a053dda0d9f6a8410bc4ab493b830a965e9f.exe	31
PID 2248 wrote to memory of 2924	2248	56f285a53d29f7f9db72780ceaf8a053dda0d9f6a8410bc4ab493b830a965e9f.exe	31
PID 2248 wrote to memory of 2924	2248	56f285a53d29f7f9db72780ceaf8a053dda0d9f6a8410bc4ab493b830a965e9f.exe	31
PID 2248 wrote to memory of 2776	2248	56f285a53d29f7f9db72780ceaf8a053dda0d9f6a8410bc4ab493b830a965e9f.exe	33
PID 2248 wrote to memory of 2776	2248	56f285a53d29f7f9db72780ceaf8a053dda0d9f6a8410bc4ab493b830a965e9f.exe	33
PID 2248 wrote to memory of 2776	2248	56f285a53d29f7f9db72780ceaf8a053dda0d9f6a8410bc4ab493b830a965e9f.exe	33
PID 2248 wrote to memory of 2776	2248	56f285a53d29f7f9db72780ceaf8a053dda0d9f6a8410bc4ab493b830a965e9f.exe	33
PID 2776 wrote to memory of 2772	2776	StartupHelper.exe	34
PID 2776 wrote to memory of 2772	2776	StartupHelper.exe	34
PID 2776 wrote to memory of 2772	2776	StartupHelper.exe	34
PID 2776 wrote to memory of 2772	2776	StartupHelper.exe	34
PID 2776 wrote to memory of 2892	2776	StartupHelper.exe	36
PID 2776 wrote to memory of 2892	2776	StartupHelper.exe	36
PID 2776 wrote to memory of 2892	2776	StartupHelper.exe	36
PID 2776 wrote to memory of 2892	2776	StartupHelper.exe	36

C:\Users\Admin\AppData\Local\Temp\56f285a53d29f7f9db72780ceaf8a053dda0d9f6a8410bc4ab493b830a965e9f.exe
"C:\Users\Admin\AppData\Local\Temp\56f285a53d29f7f9db72780ceaf8a053dda0d9f6a8410bc4ab493b830a965e9f.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2248
- C:\Windows\SysWOW64\schtasks.exe
  schtasks /Delete /tn NYAN /F
  2⤵
  - System Location Discovery: System Language Discovery
  PID:932
- C:\Windows\SysWOW64\schtasks.exe
  schtasks /create /tn NYAN /tr "C:\Users\Admin\AppData\Local\Temp\56f285a53d29f7f9db72780ceaf8a053dda0d9f6a8410bc4ab493b830a965e9f.exe" /sc minute /mo 1
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2924
- C:\Windows\StartupHelper.exe
  "C:\Windows\StartupHelper.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2776
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /Delete /tn NYAN /F
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2772
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /tn NYAN /tr "C:\Windows\StartupHelper.exe" /sc minute /mo 1
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:2892

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\StartupHelper.exe

Filesize
164KB

MD5
1ebb888eb774b33e4f91d7dad2c00737

SHA1
f272c1a38563aa52d40dad5234ec3a5284768e26

SHA256
56f285a53d29f7f9db72780ceaf8a053dda0d9f6a8410bc4ab493b830a965e9f

SHA512
beb867449918c2ace20abf0b92654c6eee5bca74dc4af8053cb31f838775e96350e40c4a6ea7067d24c4f53b5b767d6e343623ef8faa37847165c82a00cff1c6

Download Submit
memory/2248-0-0x0000000074FF1000-0x0000000074FF2000-memory.dmp

Filesize
4KB

Download
memory/2248-1-0x0000000074FF0000-0x000000007559B000-memory.dmp

Filesize
5.7MB

Download
memory/2248-2-0x0000000074FF0000-0x000000007559B000-memory.dmp

Filesize
5.7MB

Download
memory/2248-9-0x0000000074FF0000-0x000000007559B000-memory.dmp

Filesize
5.7MB

Download
memory/2776-10-0x0000000074FF0000-0x000000007559B000-memory.dmp

Filesize
5.7MB

Download
memory/2776-12-0x0000000074FF0000-0x000000007559B000-memory.dmp

Filesize
5.7MB

Download
memory/2776-11-0x0000000074FF0000-0x000000007559B000-memory.dmp

Filesize
5.7MB

Download
memory/2776-14-0x0000000074FF0000-0x000000007559B000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads