njrat | 91f915d7b7de6d838a41c4aa75443b6fc503639960b9cd41b7a0a6d071830853

General

Target

91f915d7b7de6d838a41c4aa75443b6fc503639960b9cd41b7a0a6d071830853.exe
Size

117KB
MD5

ad287daf81b42f5d4b31fe887d8e3df6
SHA1

294f012ba425ac0261fa9479b40dbd7ecd144724
SHA256

91f915d7b7de6d838a41c4aa75443b6fc503639960b9cd41b7a0a6d071830853
SHA512

262e84e86f8e822df1100c7a09e23b0ba5a72e94c47b9f251cdef80529c5c57ea64d9e3d4cbdc270901369ba3ac7bd6f2dd2042c4cdfafc5c967d8dc6c4fde26
SSDEEP

3072:7E8AHzBgZC5gRFYU2zmMcVinx7754KmUa6Qo:uyggR+U2HoiV14KmUF

Score

10^/10

njrat mx discovery evasion persistence privilege_escalation trojan

Malware Config

Extracted

Family

njrat

Version

0.6.4

Botnet

mx

C2

209.200.39.186:1172

Mutex

7c5ab2d4b3ee0e1b3e9cf876e75dff1f

Attributes

reg_key
7c5ab2d4b3ee0e1b3e9cf876e75dff1f
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

Processes:

netsh.exe

pid process

3000 netsh.exe

pid	process
3000	netsh.exe

Drops startup file 2 IoCs

Processes:

memo.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\7c5ab2d4b3ee0e1b3e9cf876e75dff1f.exe	memo.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\7c5ab2d4b3ee0e1b3e9cf876e75dff1f.exe	memo.exe

Executes dropped EXE 2 IoCs

Processes:

memo.exememo.exe

pid process

2100 memo.exe
2768 memo.exe

pid	process
2100	memo.exe
2768	memo.exe

Loads dropped DLL 3 IoCs

Processes:

91f915d7b7de6d838a41c4aa75443b6fc503639960b9cd41b7a0a6d071830853.exememo.exe

pid	process
2300	91f915d7b7de6d838a41c4aa75443b6fc503639960b9cd41b7a0a6d071830853.exe
2300	91f915d7b7de6d838a41c4aa75443b6fc503639960b9cd41b7a0a6d071830853.exe
2100	memo.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

memo.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Windows\CurrentVersion\Run\7c5ab2d4b3ee0e1b3e9cf876e75dff1f = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\memo.exe\" .."	memo.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\7c5ab2d4b3ee0e1b3e9cf876e75dff1f = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\memo.exe\" .."	memo.exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

91f915d7b7de6d838a41c4aa75443b6fc503639960b9cd41b7a0a6d071830853.exememo.exe

description	pid	process	target process
PID 2440 set thread context of 2300	2440	91f915d7b7de6d838a41c4aa75443b6fc503639960b9cd41b7a0a6d071830853.exe	91f915d7b7de6d838a41c4aa75443b6fc503639960b9cd41b7a0a6d071830853.exe
PID 2100 set thread context of 2768	2100	memo.exe	memo.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

Processes:

netsh.exe

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 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

Processes:

memo.exenetsh.exe91f915d7b7de6d838a41c4aa75443b6fc503639960b9cd41b7a0a6d071830853.exe91f915d7b7de6d838a41c4aa75443b6fc503639960b9cd41b7a0a6d071830853.exememo.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	memo.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	91f915d7b7de6d838a41c4aa75443b6fc503639960b9cd41b7a0a6d071830853.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	91f915d7b7de6d838a41c4aa75443b6fc503639960b9cd41b7a0a6d071830853.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	memo.exe

Suspicious behavior: EnumeratesProcesses 31 IoCs

Processes:

memo.exe

pid	process
2768	memo.exe
2768	memo.exe
2768	memo.exe
2768	memo.exe
2768	memo.exe
2768	memo.exe
2768	memo.exe
2768	memo.exe
2768	memo.exe
2768	memo.exe
2768	memo.exe
2768	memo.exe
2768	memo.exe
2768	memo.exe
2768	memo.exe
2768	memo.exe
2768	memo.exe
2768	memo.exe
2768	memo.exe
2768	memo.exe
2768	memo.exe
2768	memo.exe
2768	memo.exe
2768	memo.exe
2768	memo.exe
2768	memo.exe
2768	memo.exe
2768	memo.exe
2768	memo.exe
2768	memo.exe
2768	memo.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

memo.exe

description pid process

Token: SeDebugPrivilege 2768 memo.exe

description	pid	process
Token: SeDebugPrivilege	2768	memo.exe

Suspicious use of WriteProcessMemory 26 IoCs

Processes:

91f915d7b7de6d838a41c4aa75443b6fc503639960b9cd41b7a0a6d071830853.exe91f915d7b7de6d838a41c4aa75443b6fc503639960b9cd41b7a0a6d071830853.exememo.exememo.exe

description	pid	process	target process
PID 2440 wrote to memory of 2300	2440	91f915d7b7de6d838a41c4aa75443b6fc503639960b9cd41b7a0a6d071830853.exe	91f915d7b7de6d838a41c4aa75443b6fc503639960b9cd41b7a0a6d071830853.exe
PID 2440 wrote to memory of 2300	2440	91f915d7b7de6d838a41c4aa75443b6fc503639960b9cd41b7a0a6d071830853.exe	91f915d7b7de6d838a41c4aa75443b6fc503639960b9cd41b7a0a6d071830853.exe
PID 2440 wrote to memory of 2300	2440	91f915d7b7de6d838a41c4aa75443b6fc503639960b9cd41b7a0a6d071830853.exe	91f915d7b7de6d838a41c4aa75443b6fc503639960b9cd41b7a0a6d071830853.exe
PID 2440 wrote to memory of 2300	2440	91f915d7b7de6d838a41c4aa75443b6fc503639960b9cd41b7a0a6d071830853.exe	91f915d7b7de6d838a41c4aa75443b6fc503639960b9cd41b7a0a6d071830853.exe
PID 2440 wrote to memory of 2300	2440	91f915d7b7de6d838a41c4aa75443b6fc503639960b9cd41b7a0a6d071830853.exe	91f915d7b7de6d838a41c4aa75443b6fc503639960b9cd41b7a0a6d071830853.exe
PID 2440 wrote to memory of 2300	2440	91f915d7b7de6d838a41c4aa75443b6fc503639960b9cd41b7a0a6d071830853.exe	91f915d7b7de6d838a41c4aa75443b6fc503639960b9cd41b7a0a6d071830853.exe
PID 2440 wrote to memory of 2300	2440	91f915d7b7de6d838a41c4aa75443b6fc503639960b9cd41b7a0a6d071830853.exe	91f915d7b7de6d838a41c4aa75443b6fc503639960b9cd41b7a0a6d071830853.exe
PID 2440 wrote to memory of 2300	2440	91f915d7b7de6d838a41c4aa75443b6fc503639960b9cd41b7a0a6d071830853.exe	91f915d7b7de6d838a41c4aa75443b6fc503639960b9cd41b7a0a6d071830853.exe
PID 2440 wrote to memory of 2300	2440	91f915d7b7de6d838a41c4aa75443b6fc503639960b9cd41b7a0a6d071830853.exe	91f915d7b7de6d838a41c4aa75443b6fc503639960b9cd41b7a0a6d071830853.exe
PID 2300 wrote to memory of 2100	2300	91f915d7b7de6d838a41c4aa75443b6fc503639960b9cd41b7a0a6d071830853.exe	memo.exe
PID 2300 wrote to memory of 2100	2300	91f915d7b7de6d838a41c4aa75443b6fc503639960b9cd41b7a0a6d071830853.exe	memo.exe
PID 2300 wrote to memory of 2100	2300	91f915d7b7de6d838a41c4aa75443b6fc503639960b9cd41b7a0a6d071830853.exe	memo.exe
PID 2300 wrote to memory of 2100	2300	91f915d7b7de6d838a41c4aa75443b6fc503639960b9cd41b7a0a6d071830853.exe	memo.exe
PID 2100 wrote to memory of 2768	2100	memo.exe	memo.exe
PID 2100 wrote to memory of 2768	2100	memo.exe	memo.exe
PID 2100 wrote to memory of 2768	2100	memo.exe	memo.exe
PID 2100 wrote to memory of 2768	2100	memo.exe	memo.exe
PID 2100 wrote to memory of 2768	2100	memo.exe	memo.exe
PID 2100 wrote to memory of 2768	2100	memo.exe	memo.exe
PID 2100 wrote to memory of 2768	2100	memo.exe	memo.exe
PID 2100 wrote to memory of 2768	2100	memo.exe	memo.exe
PID 2100 wrote to memory of 2768	2100	memo.exe	memo.exe
PID 2768 wrote to memory of 3000	2768	memo.exe	netsh.exe
PID 2768 wrote to memory of 3000	2768	memo.exe	netsh.exe
PID 2768 wrote to memory of 3000	2768	memo.exe	netsh.exe
PID 2768 wrote to memory of 3000	2768	memo.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\91f915d7b7de6d838a41c4aa75443b6fc503639960b9cd41b7a0a6d071830853.exe
"C:\Users\Admin\AppData\Local\Temp\91f915d7b7de6d838a41c4aa75443b6fc503639960b9cd41b7a0a6d071830853.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2440
- C:\Users\Admin\AppData\Local\Temp\91f915d7b7de6d838a41c4aa75443b6fc503639960b9cd41b7a0a6d071830853.exe
  "C:\Users\Admin\AppData\Local\Temp\91f915d7b7de6d838a41c4aa75443b6fc503639960b9cd41b7a0a6d071830853.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2300
- - C:\Users\Admin\AppData\Local\Temp\memo.exe
    "C:\Users\Admin\AppData\Local\Temp\memo.exe"
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2100
  - - C:\Users\Admin\AppData\Local\Temp\memo.exe
      "C:\Users\Admin\AppData\Local\Temp\memo.exe"
      4⤵
      Drops startup file
      Executes dropped EXE
      Adds Run key to start application
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of WriteProcessMemory
      PID:2768
    - - C:\Windows\SysWOW64\netsh.exe
        
        netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\memo.exe" "memo.exe" ENABLE
        5⤵
        Modifies Windows Firewall
        Event Triggered Execution: Netsh Helper DLL
        System Location Discovery: System Language Discovery
        
        PID:3000

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

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

Filesize
117KB

MD5
ad287daf81b42f5d4b31fe887d8e3df6

SHA1
294f012ba425ac0261fa9479b40dbd7ecd144724

SHA256
91f915d7b7de6d838a41c4aa75443b6fc503639960b9cd41b7a0a6d071830853

SHA512
262e84e86f8e822df1100c7a09e23b0ba5a72e94c47b9f251cdef80529c5c57ea64d9e3d4cbdc270901369ba3ac7bd6f2dd2042c4cdfafc5c967d8dc6c4fde26

Download Submit
memory/2100-44-0x0000000073E00000-0x00000000743AB000-memory.dmp

Filesize
5.7MB

Download
memory/2100-28-0x0000000073E00000-0x00000000743AB000-memory.dmp

Filesize
5.7MB

Download
memory/2300-13-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/2300-15-0x0000000073E00000-0x00000000743AB000-memory.dmp

Filesize
5.7MB

Download
memory/2300-43-0x0000000073E00000-0x00000000743AB000-memory.dmp

Filesize
5.7MB

Download
memory/2300-11-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/2300-6-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/2300-5-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/2300-4-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/2300-3-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/2300-14-0x0000000073E00000-0x00000000743AB000-memory.dmp

Filesize
5.7MB

Download
memory/2300-7-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2300-9-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/2300-18-0x0000000073E00000-0x00000000743AB000-memory.dmp

Filesize
5.7MB

Download
memory/2440-17-0x0000000073E00000-0x00000000743AB000-memory.dmp

Filesize
5.7MB

Download
memory/2440-2-0x0000000073E00000-0x00000000743AB000-memory.dmp

Filesize
5.7MB

Download
memory/2440-1-0x0000000073E00000-0x00000000743AB000-memory.dmp

Filesize
5.7MB

Download
memory/2440-0-0x0000000073E01000-0x0000000073E02000-memory.dmp

Filesize
4KB

Download
memory/2768-38-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads