njrat | 455fb9ca9528bb4aea47f4eeab8ecb136df58787e815931e1276f85d9a89282b

General

Target

cc/PP checker.exe
Size

592KB
MD5

f9af3bb471626b0b164883fd40364984
SHA1

2134dfb0329ed567be16aded8da7bedf9d65f588
SHA256

96cb6cc90619a599c9806d649a64db4aa596c495887ae3b3db432e63082bd0ab
SHA512

e0f0c447c37b57caff29ae54f99b1ef37a9416a7fa03aa15f0f66c0e7a279a495c54e768527845ee900af95e76c8c2607053c85e30d7ff85fe0a1806e6fb7071
SSDEEP

12288:b2y2axB0F+IKNDleyJJ5KcZDOIOcMldpFU065lbzO4mBR:q+xB3ZL5NDzkdHUphNmBR

Score

10^/10

njrat spameur monta discovery evasion persistence privilege_escalation trojan

Malware Config

Extracted

Family

njrat

Version

0.6.4

Botnet

Spameur monta

C2

kadi41.no-ip.org:1177

Mutex

9d0ca6779c4df125b0313463a3f5f631

Attributes

reg_key
9d0ca6779c4df125b0313463a3f5f631
splitter
|'|'|

Signatures

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
2612	netsh.exe

Executes dropped EXE 3 IoCs

pid	Process
2792	1.exe
2696	2.exe
2744	Chrome.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-1-5-21-3434294380-2554721341-1919518612-1000\Software\Microsoft\Windows\CurrentVersion\Run\9d0ca6779c4df125b0313463a3f5f631 = "\"C:\\Windows\\Chrome.exe\" .."	Chrome.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\9d0ca6779c4df125b0313463a3f5f631 = "\"C:\\Windows\\Chrome.exe\" .."	Chrome.exe

Drops file in Windows directory 4 IoCs

description	ioc	Process
File created	C:\Windows\Chrome.exe	1.exe
File opened for modification	C:\Windows\Chrome.exe	1.exe
File created	C:\Windows\Chrome.exe.tmp	Chrome.exe
File opened for modification	C:\Windows\Chrome.exe.tmp	Chrome.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 value enumerated	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.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	2.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	1.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Chrome.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

Suspicious behavior: EnumeratesProcesses 40 IoCs

pid	Process
2696	2.exe
2744	Chrome.exe
2744	Chrome.exe
2744	Chrome.exe
2744	Chrome.exe
2744	Chrome.exe
2744	Chrome.exe
2744	Chrome.exe
2744	Chrome.exe
2744	Chrome.exe
2744	Chrome.exe
2744	Chrome.exe
2744	Chrome.exe
2744	Chrome.exe
2744	Chrome.exe
2744	Chrome.exe
2744	Chrome.exe
2744	Chrome.exe
2744	Chrome.exe
2744	Chrome.exe
2744	Chrome.exe
2744	Chrome.exe
2744	Chrome.exe
2744	Chrome.exe
2744	Chrome.exe
2744	Chrome.exe
2744	Chrome.exe
2744	Chrome.exe
2744	Chrome.exe
2744	Chrome.exe
2744	Chrome.exe
2744	Chrome.exe
2744	Chrome.exe
2744	Chrome.exe
2744	Chrome.exe
2744	Chrome.exe
2744	Chrome.exe
2744	Chrome.exe
2744	Chrome.exe
2744	Chrome.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2744	Chrome.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 1976 wrote to memory of 2792	1976	PP checker.exe	31
PID 1976 wrote to memory of 2792	1976	PP checker.exe	31
PID 1976 wrote to memory of 2792	1976	PP checker.exe	31
PID 1976 wrote to memory of 2792	1976	PP checker.exe	31
PID 1976 wrote to memory of 2696	1976	PP checker.exe	32
PID 1976 wrote to memory of 2696	1976	PP checker.exe	32
PID 1976 wrote to memory of 2696	1976	PP checker.exe	32
PID 1976 wrote to memory of 2696	1976	PP checker.exe	32
PID 2792 wrote to memory of 2744	2792	1.exe	33
PID 2792 wrote to memory of 2744	2792	1.exe	33
PID 2792 wrote to memory of 2744	2792	1.exe	33
PID 2792 wrote to memory of 2744	2792	1.exe	33
PID 2744 wrote to memory of 2612	2744	Chrome.exe	34
PID 2744 wrote to memory of 2612	2744	Chrome.exe	34
PID 2744 wrote to memory of 2612	2744	Chrome.exe	34
PID 2744 wrote to memory of 2612	2744	Chrome.exe	34

C:\Users\Admin\AppData\Local\Temp\cc\PP checker.exe
"C:\Users\Admin\AppData\Local\Temp\cc\PP checker.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1976
- C:\Users\Admin\AppData\Local\Temp\1.exe
  "C:\Users\Admin\AppData\Local\Temp\1.exe"
  2⤵
  - Executes dropped EXE
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2792
- - C:\Windows\Chrome.exe
    "C:\Windows\Chrome.exe"
    3⤵
    - Executes dropped EXE
    - Adds Run key to start application
    - Drops file in Windows directory
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:2744
  - - C:\Windows\SysWOW64\netsh.exe
      netsh firewall add allowedprogram "C:\Windows\Chrome.exe" "Chrome.exe" ENABLE
      4⤵
      Modifies Windows Firewall
      Event Triggered Execution: Netsh Helper DLL
      System Location Discovery: System Language Discovery
      PID:2612
- C:\Users\Admin\AppData\Local\Temp\2.exe
  "C:\Users\Admin\AppData\Local\Temp\2.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  PID:2696

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

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\1.exe

Filesize
29KB

MD5
0fdd4db22806216eb659714c624707ed

SHA1
2ae1c47addc532ae856beb7edbe768b9037af1f1

SHA256
0e69bb1971777ebaff01f299ad0a5b70f0cf144e30b446ecc0404d03ce27103b

SHA512
9dfd1e8817175681ea6142ff38f64df2a68cdfb75a2f2a9e55c606d2553befb5a928ecaf7b8dae811ca588b379cbfefbcfb4611208f54858fe52d55e6213984d

Download Submit
C:\Users\Admin\AppData\Local\Temp\2.exe

Filesize
542KB

MD5
bfc57525ada107f5deb9696ab7470cd8

SHA1
b1467905507d386164b6cde4608ac3ea7e922561

SHA256
9c7a2621d03b7507d77dc9526974a81d57c47bf5f0108fbcf921c827716e106a

SHA512
18b4014c49999509bc4899a495a63ccefd0a1e33aa4936311557d57cb39465ba99e8279436e63d7171098bdb99a46da129ed856b6535d0eac92b0d8679ae9f29

Download Submit
memory/1976-0-0x000007FEF58FE000-0x000007FEF58FF000-memory.dmp

Filesize
4KB

Download
memory/1976-14-0x000007FEF5640000-0x000007FEF5FDD000-memory.dmp

Filesize
9.6MB

Download
memory/2696-15-0x00000000001B0000-0x00000000001B1000-memory.dmp

Filesize
4KB

Download
memory/2696-26-0x00000000001B0000-0x00000000001B1000-memory.dmp

Filesize
4KB

Download
memory/2696-27-0x0000000000400000-0x000000000048E000-memory.dmp

Filesize
568KB

Download
memory/2696-28-0x0000000061D80000-0x0000000061E6E000-memory.dmp

Filesize
952KB

Download
memory/2792-16-0x00000000744D1000-0x00000000744D2000-memory.dmp

Filesize
4KB

Download
memory/2792-17-0x00000000744D0000-0x0000000074A7B000-memory.dmp

Filesize
5.7MB

Download
memory/2792-18-0x00000000744D0000-0x0000000074A7B000-memory.dmp

Filesize
5.7MB

Download
memory/2792-25-0x00000000744D0000-0x0000000074A7B000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads