njrat | 925364c585429e6ae064c4db9c7bf30db036debed7b1f403efc60ea6990da4bf

General

Target

EMANNN.exe
Size

55KB
MD5

6bc49cb82d9f92f4a70cf4c84265c26f
SHA1

87f69c48c84f9a701b6800762c69c95dfd181273
SHA256

925364c585429e6ae064c4db9c7bf30db036debed7b1f403efc60ea6990da4bf
SHA512

3d1f055ec378e244c239debc9832bbd6f56a1b3cb27fa009380a728e769ad870272d90cc940d269a3f985c333380b43eedb4c5d1fbe8be57bd67749bc9419d0c
SSDEEP

1536:k+mIDn/NOryWhI0DtwsNMDmXExI3pmjm:SIDnE+v0DtwsNMDmXExI3pm

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\f53a2de487461812859f1781af27b20d.exe	EMANNN.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\f53a2de487461812859f1781af27b20d.exe	EMANNN.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-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\f53a2de487461812859f1781af27b20d = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\EMANNN.exe\" .."	EMANNN.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\f53a2de487461812859f1781af27b20d = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\EMANNN.exe\" .."	EMANNN.exe

System Location Discovery: System Language Discovery 1 TTPs 4 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	EMANNN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PING.EXE

System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs

Adversaries may check for Internet connectivity on compromised systems.

discovery

Internet Connection Discovery

T1016.001

pid	Process
4472	cmd.exe
4184	PING.EXE

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
4184	PING.EXE

Suspicious use of AdjustPrivilegeToken 7 IoCs

description	pid	Process
Token: SeDebugPrivilege	548	EMANNN.exe
Token: 33	548	EMANNN.exe
Token: SeIncBasePriorityPrivilege	548	EMANNN.exe
Token: 33	548	EMANNN.exe
Token: SeIncBasePriorityPrivilege	548	EMANNN.exe
Token: 33	548	EMANNN.exe
Token: SeIncBasePriorityPrivilege	548	EMANNN.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 548 wrote to memory of 3488	548	EMANNN.exe	88
PID 548 wrote to memory of 3488	548	EMANNN.exe	88
PID 548 wrote to memory of 3488	548	EMANNN.exe	88
PID 548 wrote to memory of 4472	548	EMANNN.exe	90
PID 548 wrote to memory of 4472	548	EMANNN.exe	90
PID 548 wrote to memory of 4472	548	EMANNN.exe	90
PID 4472 wrote to memory of 4184	4472	cmd.exe	92
PID 4472 wrote to memory of 4184	4472	cmd.exe	92
PID 4472 wrote to memory of 4184	4472	cmd.exe	92

C:\Users\Admin\AppData\Local\Temp\EMANNN.exe
"C:\Users\Admin\AppData\Local\Temp\EMANNN.exe"
1⤵
- Drops startup file
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:548
- C:\Windows\SysWOW64\schtasks.exe
  schtasks /delete /tn CleanSweepCheck /f
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3488
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 0 -n 2 & del "C:\Users\Admin\AppData\Local\Temp\EMANNN.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:4472
- - C:\Windows\SysWOW64\PING.EXE
    ping 0 -n 2
    3⤵
    - System Location Discovery: System Language Discovery
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:4184

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

Remote System Discovery

1

T1018

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

System Network Configuration Discovery

1

T1016

Internet Connection Discovery

1

T1016.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/548-0-0x0000000074BB2000-0x0000000074BB3000-memory.dmp

Filesize
4KB

Download
memory/548-1-0x0000000074BB0000-0x0000000075161000-memory.dmp

Filesize
5.7MB

Download
memory/548-2-0x0000000074BB0000-0x0000000075161000-memory.dmp

Filesize
5.7MB

Download
memory/548-4-0x0000000074BB2000-0x0000000074BB3000-memory.dmp

Filesize
4KB

Download
memory/548-5-0x0000000074BB0000-0x0000000075161000-memory.dmp

Filesize
5.7MB

Download
memory/548-6-0x0000000074BB0000-0x0000000075161000-memory.dmp

Filesize
5.7MB

Download
memory/548-7-0x0000000074BB0000-0x0000000075161000-memory.dmp

Filesize
5.7MB

Download
memory/548-8-0x0000000074BB0000-0x0000000075161000-memory.dmp

Filesize
5.7MB

Download
memory/548-12-0x0000000074BB0000-0x0000000075161000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads