njrat | 5f98850c93410730ab6562feef04fefe3855e3ff81dc6ea30ee9283b3b0615cb

Analysis

max time kernel
149s
max time network
145s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
17-09-2024 16:07

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General

Target

e7332feab4157604fcfba589b0c1ac10_JaffaCakes118.exe
Size

78KB
MD5

e7332feab4157604fcfba589b0c1ac10
SHA1

a0c3de942da595cc952408098b3c086b62efdc1a
SHA256

5f98850c93410730ab6562feef04fefe3855e3ff81dc6ea30ee9283b3b0615cb
SHA512

5cb26866e15292569c24d0f4b6bc370f577de9a1ea992fec52e4606e704a325ebf7ca46da898a79d373eeb7ebbe3f97f3726784aa6f92b5451d5d7fbce7f77b4
SSDEEP

1536:DQsCupcLXrMYWmUW+pz0usw8JNlBOEYZF+x8:DpbYWmUW+pgusLJNlwEYZIx8

Score

10^/10

njrat hacked discovery evasion persistence privilege_escalation trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

HacKed

107.150.12.44:14532

Mutex

9e12b36449cc78d34159a3c000b6fc6a

Attributes

reg_key
9e12b36449cc78d34159a3c000b6fc6a
splitter
|'|'|

Signatures

Modifies WinLogon for persistence 2 TTPs 2 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\shell = "C:\\Users\\Admin\\AppData\\Roaming\\D6d8nqI7\\REBtPLd.exe,explorer.exe"	reg.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\shell = "C:\\Users\\Admin\\AppData\\Roaming\\D6d8nqI7\\REBtPLd.exe,explorer.exe"	reg.exe

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
2872	netsh.exe

Executes dropped EXE 3 IoCs

pid	Process
2884	e7332feab4157604fcfba589b0c1ac10_JaffaCakes118.exe
2476	server.exe
2380	server.exe

Loads dropped DLL 5 IoCs

pid	Process
2824	e7332feab4157604fcfba589b0c1ac10_JaffaCakes118.exe
2824	e7332feab4157604fcfba589b0c1ac10_JaffaCakes118.exe
2884	e7332feab4157604fcfba589b0c1ac10_JaffaCakes118.exe
2476	server.exe
2476	server.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\9e12b36449cc78d34159a3c000b6fc6a = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .."	server.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\9e12b36449cc78d34159a3c000b6fc6a = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .."	server.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 2824 set thread context of 2884	2824	e7332feab4157604fcfba589b0c1ac10_JaffaCakes118.exe	33
PID 2476 set thread context of 2380	2476	server.exe	38

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 9 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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	reg.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	e7332feab4157604fcfba589b0c1ac10_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	reg.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	e7332feab4157604fcfba589b0c1ac10_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	server.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	server.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2824	e7332feab4157604fcfba589b0c1ac10_JaffaCakes118.exe
2824	e7332feab4157604fcfba589b0c1ac10_JaffaCakes118.exe
2476	server.exe
2476	server.exe

Suspicious use of AdjustPrivilegeToken 35 IoCs

description	pid	Process
Token: SeDebugPrivilege	2824	e7332feab4157604fcfba589b0c1ac10_JaffaCakes118.exe
Token: SeDebugPrivilege	2476	server.exe
Token: SeDebugPrivilege	2380	server.exe
Token: 33	2380	server.exe
Token: SeIncBasePriorityPrivilege	2380	server.exe
Token: 33	2380	server.exe
Token: SeIncBasePriorityPrivilege	2380	server.exe
Token: 33	2380	server.exe
Token: SeIncBasePriorityPrivilege	2380	server.exe
Token: 33	2380	server.exe
Token: SeIncBasePriorityPrivilege	2380	server.exe
Token: 33	2380	server.exe
Token: SeIncBasePriorityPrivilege	2380	server.exe
Token: 33	2380	server.exe
Token: SeIncBasePriorityPrivilege	2380	server.exe
Token: 33	2380	server.exe
Token: SeIncBasePriorityPrivilege	2380	server.exe
Token: 33	2380	server.exe
Token: SeIncBasePriorityPrivilege	2380	server.exe
Token: 33	2380	server.exe
Token: SeIncBasePriorityPrivilege	2380	server.exe
Token: 33	2380	server.exe
Token: SeIncBasePriorityPrivilege	2380	server.exe
Token: 33	2380	server.exe
Token: SeIncBasePriorityPrivilege	2380	server.exe
Token: 33	2380	server.exe
Token: SeIncBasePriorityPrivilege	2380	server.exe
Token: 33	2380	server.exe
Token: SeIncBasePriorityPrivilege	2380	server.exe
Token: 33	2380	server.exe
Token: SeIncBasePriorityPrivilege	2380	server.exe
Token: 33	2380	server.exe
Token: SeIncBasePriorityPrivilege	2380	server.exe
Token: 33	2380	server.exe
Token: SeIncBasePriorityPrivilege	2380	server.exe

Suspicious use of WriteProcessMemory 42 IoCs

description	pid	Process	procid_target
PID 2824 wrote to memory of 2812	2824	e7332feab4157604fcfba589b0c1ac10_JaffaCakes118.exe	30
PID 2824 wrote to memory of 2812	2824	e7332feab4157604fcfba589b0c1ac10_JaffaCakes118.exe	30
PID 2824 wrote to memory of 2812	2824	e7332feab4157604fcfba589b0c1ac10_JaffaCakes118.exe	30
PID 2824 wrote to memory of 2812	2824	e7332feab4157604fcfba589b0c1ac10_JaffaCakes118.exe	30
PID 2812 wrote to memory of 1536	2812	cmd.exe	32
PID 2812 wrote to memory of 1536	2812	cmd.exe	32
PID 2812 wrote to memory of 1536	2812	cmd.exe	32
PID 2812 wrote to memory of 1536	2812	cmd.exe	32
PID 2824 wrote to memory of 2884	2824	e7332feab4157604fcfba589b0c1ac10_JaffaCakes118.exe	33
PID 2824 wrote to memory of 2884	2824	e7332feab4157604fcfba589b0c1ac10_JaffaCakes118.exe	33
PID 2824 wrote to memory of 2884	2824	e7332feab4157604fcfba589b0c1ac10_JaffaCakes118.exe	33
PID 2824 wrote to memory of 2884	2824	e7332feab4157604fcfba589b0c1ac10_JaffaCakes118.exe	33
PID 2824 wrote to memory of 2884	2824	e7332feab4157604fcfba589b0c1ac10_JaffaCakes118.exe	33
PID 2824 wrote to memory of 2884	2824	e7332feab4157604fcfba589b0c1ac10_JaffaCakes118.exe	33
PID 2824 wrote to memory of 2884	2824	e7332feab4157604fcfba589b0c1ac10_JaffaCakes118.exe	33
PID 2824 wrote to memory of 2884	2824	e7332feab4157604fcfba589b0c1ac10_JaffaCakes118.exe	33
PID 2824 wrote to memory of 2884	2824	e7332feab4157604fcfba589b0c1ac10_JaffaCakes118.exe	33
PID 2884 wrote to memory of 2476	2884	e7332feab4157604fcfba589b0c1ac10_JaffaCakes118.exe	34
PID 2884 wrote to memory of 2476	2884	e7332feab4157604fcfba589b0c1ac10_JaffaCakes118.exe	34
PID 2884 wrote to memory of 2476	2884	e7332feab4157604fcfba589b0c1ac10_JaffaCakes118.exe	34
PID 2884 wrote to memory of 2476	2884	e7332feab4157604fcfba589b0c1ac10_JaffaCakes118.exe	34
PID 2476 wrote to memory of 2616	2476	server.exe	35
PID 2476 wrote to memory of 2616	2476	server.exe	35
PID 2476 wrote to memory of 2616	2476	server.exe	35
PID 2476 wrote to memory of 2616	2476	server.exe	35
PID 2616 wrote to memory of 2360	2616	cmd.exe	37
PID 2616 wrote to memory of 2360	2616	cmd.exe	37
PID 2616 wrote to memory of 2360	2616	cmd.exe	37
PID 2616 wrote to memory of 2360	2616	cmd.exe	37
PID 2476 wrote to memory of 2380	2476	server.exe	38
PID 2476 wrote to memory of 2380	2476	server.exe	38
PID 2476 wrote to memory of 2380	2476	server.exe	38
PID 2476 wrote to memory of 2380	2476	server.exe	38
PID 2476 wrote to memory of 2380	2476	server.exe	38
PID 2476 wrote to memory of 2380	2476	server.exe	38
PID 2476 wrote to memory of 2380	2476	server.exe	38
PID 2476 wrote to memory of 2380	2476	server.exe	38
PID 2476 wrote to memory of 2380	2476	server.exe	38
PID 2380 wrote to memory of 2872	2380	server.exe	39
PID 2380 wrote to memory of 2872	2380	server.exe	39
PID 2380 wrote to memory of 2872	2380	server.exe	39
PID 2380 wrote to memory of 2872	2380	server.exe	39

C:\Users\Admin\AppData\Local\Temp\e7332feab4157604fcfba589b0c1ac10_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\e7332feab4157604fcfba589b0c1ac10_JaffaCakes118.exe"
1⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2824
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c reg add "HKCU\Software\Microsoft\Windows NT\CurrentVersion\Winlogon" /f /v shell /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\D6d8nqI7\REBtPLd.exe,explorer.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2812
- - C:\Windows\SysWOW64\reg.exe
    reg add "HKCU\Software\Microsoft\Windows NT\CurrentVersion\Winlogon" /f /v shell /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\D6d8nqI7\REBtPLd.exe,explorer.exe"
    3⤵
    - Modifies WinLogon for persistence
    - System Location Discovery: System Language Discovery
    PID:1536
- C:\Users\Admin\AppData\Local\Temp\e7332feab4157604fcfba589b0c1ac10_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\e7332feab4157604fcfba589b0c1ac10_JaffaCakes118.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2884
- - C:\Users\Admin\AppData\Local\Temp\server.exe
    "C:\Users\Admin\AppData\Local\Temp\server.exe"
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:2476
  - - C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c reg add "HKCU\Software\Microsoft\Windows NT\CurrentVersion\Winlogon" /f /v shell /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\D6d8nqI7\REBtPLd.exe,explorer.exe"
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious use of WriteProcessMemory
      PID:2616
    - - C:\Windows\SysWOW64\reg.exe
        
        reg add "HKCU\Software\Microsoft\Windows NT\CurrentVersion\Winlogon" /f /v shell /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\D6d8nqI7\REBtPLd.exe,explorer.exe"
        5⤵
        Modifies WinLogon for persistence
        System Location Discovery: System Language Discovery
        
        PID:2360
  - - C:\Users\Admin\AppData\Local\Temp\server.exe
      "C:\Users\Admin\AppData\Local\Temp\server.exe"
      4⤵
      Executes dropped EXE
      Adds Run key to start application
      System Location Discovery: System Language Discovery
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of WriteProcessMemory
      PID:2380
    - - C:\Windows\SysWOW64\netsh.exe
        
        netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\server.exe" "server.exe" ENABLE
        5⤵
        Modifies Windows Firewall
        Event Triggered Execution: Netsh Helper DLL
        System Location Discovery: System Language Discovery
        
        PID:2872

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Defense Evasion

Impair Defenses

T1562

Disable or Modify System Firewall

T1562.004

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\D6d8nqI7\REBtPLd.exe.lnk

Filesize
843B

MD5
deecb0aaaeacc54ab30de7e648677e30

SHA1
7e2455e0a3360aa1bb4382adc952388d357ce0b9

SHA256
575990aa9ccd2add5caaab3a008d4a946ee70b384369a10e567ee6c9324a0721

SHA512
54422205443bfbf3ee0cfeb287f3f937815d76cbacf680d1737b2701e6f8d51c4975283c3e71d220809aa189d5bb47a8d819d4adbc05494874d85fa0808edfa5

Download Submit
\Users\Admin\AppData\Roaming\D6d8nqI7\REBtPLd.exe

Filesize
78KB

MD5
e7332feab4157604fcfba589b0c1ac10

SHA1
a0c3de942da595cc952408098b3c086b62efdc1a

SHA256
5f98850c93410730ab6562feef04fefe3855e3ff81dc6ea30ee9283b3b0615cb

SHA512
5cb26866e15292569c24d0f4b6bc370f577de9a1ea992fec52e4606e704a325ebf7ca46da898a79d373eeb7ebbe3f97f3726784aa6f92b5451d5d7fbce7f77b4

Download Submit
memory/2380-47-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2824-22-0x00000000747F0000-0x0000000074D9B000-memory.dmp

Filesize
5.7MB

Download
memory/2824-1-0x00000000747F0000-0x0000000074D9B000-memory.dmp

Filesize
5.7MB

Download
memory/2824-2-0x00000000747F0000-0x0000000074D9B000-memory.dmp

Filesize
5.7MB

Download
memory/2824-0-0x00000000747F1000-0x00000000747F2000-memory.dmp

Filesize
4KB

Download
memory/2884-10-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/2884-13-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/2884-12-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/2884-21-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/2884-19-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/2884-14-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2884-23-0x00000000747F0000-0x0000000074D9B000-memory.dmp

Filesize
5.7MB

Download
memory/2884-31-0x00000000747F0000-0x0000000074D9B000-memory.dmp

Filesize
5.7MB

Download
memory/2884-16-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/2884-11-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download