njrat | 6e815a0305b3151a23e1619e617d95f34be383b0837971b7f9e410999be6c427

General

Target

6e815a0305b3151a23e1619e617d95f34be383b0837971b7f9e410999be6c427.exe
Size

23KB
MD5

89e3b86bf3dc88f3bf9ec1fbe15a565b
SHA1

1c76abe6f0a1fe99cb5f07ef8a6eab01d78182cf
SHA256

6e815a0305b3151a23e1619e617d95f34be383b0837971b7f9e410999be6c427
SHA512

fb8dc60c5999b3ae005498406e5c0c459f02d3f5efe28d18da8e2a93fd7ee3d9abd6d9815a775fd115ea8b767d03420aa467eeff7f590cba30f0a3db9801326b
SSDEEP

384:ZMKyOkBkRbohza8yuTUt7u06zgV4a5pzomRvR6JZlbw8hqIusZzZr3rv:y/YI1T0RpcnuArv

Score

10^/10

njrat kaka discovery evasion persistence privilege_escalation trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

kaka

C2

chakala.no-ip.biz:5552

Mutex

4c7549b66a934af47e80f87411139e0a

Attributes

reg_key
4c7549b66a934af47e80f87411139e0a
splitter
|'|'|

Signatures

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

Modifies Windows Firewall 2 TTPs 1 IoCs

evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
2876	netsh.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\4c7549b66a934af47e80f87411139e0a.exe	sk.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\4c7549b66a934af47e80f87411139e0a.exe	sk.exe

Executes dropped EXE 1 IoCs

pid	Process
2408	sk.exe

Loads dropped DLL 1 IoCs

pid	Process
1192	6e815a0305b3151a23e1619e617d95f34be383b0837971b7f9e410999be6c427.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-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Windows\CurrentVersion\Run\4c7549b66a934af47e80f87411139e0a = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\sk.exe\" .."	sk.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\4c7549b66a934af47e80f87411139e0a = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\sk.exe\" .."	sk.exe

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

System Information Discovery
T1082

Event Triggered Execution: Netsh Helper DLL 1 TTPs 3 IoCs

Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

persistence privilege_escalation

Netsh Helper DLL

T1546.007

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe

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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	6e815a0305b3151a23e1619e617d95f34be383b0837971b7f9e410999be6c427.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sk.exe

Suspicious use of AdjustPrivilegeToken 27 IoCs

description	pid	Process
Token: SeDebugPrivilege	2408	sk.exe
Token: 33	2408	sk.exe
Token: SeIncBasePriorityPrivilege	2408	sk.exe
Token: 33	2408	sk.exe
Token: SeIncBasePriorityPrivilege	2408	sk.exe
Token: 33	2408	sk.exe
Token: SeIncBasePriorityPrivilege	2408	sk.exe
Token: 33	2408	sk.exe
Token: SeIncBasePriorityPrivilege	2408	sk.exe
Token: 33	2408	sk.exe
Token: SeIncBasePriorityPrivilege	2408	sk.exe
Token: 33	2408	sk.exe
Token: SeIncBasePriorityPrivilege	2408	sk.exe
Token: 33	2408	sk.exe
Token: SeIncBasePriorityPrivilege	2408	sk.exe
Token: 33	2408	sk.exe
Token: SeIncBasePriorityPrivilege	2408	sk.exe
Token: 33	2408	sk.exe
Token: SeIncBasePriorityPrivilege	2408	sk.exe
Token: 33	2408	sk.exe
Token: SeIncBasePriorityPrivilege	2408	sk.exe
Token: 33	2408	sk.exe
Token: SeIncBasePriorityPrivilege	2408	sk.exe
Token: 33	2408	sk.exe
Token: SeIncBasePriorityPrivilege	2408	sk.exe
Token: 33	2408	sk.exe
Token: SeIncBasePriorityPrivilege	2408	sk.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1192 wrote to memory of 2408	1192	6e815a0305b3151a23e1619e617d95f34be383b0837971b7f9e410999be6c427.exe	30
PID 1192 wrote to memory of 2408	1192	6e815a0305b3151a23e1619e617d95f34be383b0837971b7f9e410999be6c427.exe	30
PID 1192 wrote to memory of 2408	1192	6e815a0305b3151a23e1619e617d95f34be383b0837971b7f9e410999be6c427.exe	30
PID 1192 wrote to memory of 2408	1192	6e815a0305b3151a23e1619e617d95f34be383b0837971b7f9e410999be6c427.exe	30
PID 2408 wrote to memory of 2876	2408	sk.exe	32
PID 2408 wrote to memory of 2876	2408	sk.exe	32
PID 2408 wrote to memory of 2876	2408	sk.exe	32
PID 2408 wrote to memory of 2876	2408	sk.exe	32

C:\Users\Admin\AppData\Local\Temp\6e815a0305b3151a23e1619e617d95f34be383b0837971b7f9e410999be6c427.exe
"C:\Users\Admin\AppData\Local\Temp\6e815a0305b3151a23e1619e617d95f34be383b0837971b7f9e410999be6c427.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1192
- C:\Users\Admin\AppData\Local\Temp\sk.exe
  "C:\Users\Admin\AppData\Local\Temp\sk.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:2408
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\sk.exe" "sk.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    - System Location Discovery: System Language Discovery
    PID:2876

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

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Defense Evasion

Impair Defenses

1

T1562

Disable or Modify System Firewall

Modify Registry

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:\Users\Admin\AppData\Local\Temp\sk.exe

Filesize
23KB

MD5
89e3b86bf3dc88f3bf9ec1fbe15a565b

SHA1
1c76abe6f0a1fe99cb5f07ef8a6eab01d78182cf

SHA256
6e815a0305b3151a23e1619e617d95f34be383b0837971b7f9e410999be6c427

SHA512
fb8dc60c5999b3ae005498406e5c0c459f02d3f5efe28d18da8e2a93fd7ee3d9abd6d9815a775fd115ea8b767d03420aa467eeff7f590cba30f0a3db9801326b

Download Submit
memory/1192-0-0x0000000074831000-0x0000000074832000-memory.dmp

Filesize
4KB

Download
memory/1192-1-0x0000000074830000-0x0000000074DDB000-memory.dmp

Filesize
5.7MB

Download
memory/1192-2-0x0000000074830000-0x0000000074DDB000-memory.dmp

Filesize
5.7MB

Download
memory/1192-10-0x0000000074830000-0x0000000074DDB000-memory.dmp

Filesize
5.7MB

Download
memory/2408-11-0x0000000074830000-0x0000000074DDB000-memory.dmp

Filesize
5.7MB

Download
memory/2408-12-0x0000000074830000-0x0000000074DDB000-memory.dmp

Filesize
5.7MB

Download
memory/2408-14-0x0000000074830000-0x0000000074DDB000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads