njrat | 857c0557be413c9659bd43033085ff241ddb5c89f4a0cef4ad200878b4f43368

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
11-09-2024 01:58

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General

Target

d9692372935af6488f394ac6bb54abcd_JaffaCakes118.exe
Size

78KB
MD5

d9692372935af6488f394ac6bb54abcd
SHA1

e027975d43f867f7f975ab70931c4dedfc34fcbe
SHA256

857c0557be413c9659bd43033085ff241ddb5c89f4a0cef4ad200878b4f43368
SHA512

d5194a7affb374418597656e399680058c80462ee8e3d7875d09e33362bd3506ddc8e16d623528378cda6947c09b40fbe8bc05de319c4c0c1cc800ab5da6daa2
SSDEEP

1536:+EXJoENDDVGHIdsF16EczfDO8JNGPfRYZMw/y0K/Kq:+sJoIdsF16zJJNGnRYZJa0K/Kq

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-1-5-21-3063565911-2056067323-3330884624-1000\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-1-5-21-3063565911-2056067323-3330884624-1000\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
2584	netsh.exe

Executes dropped EXE 3 IoCs

pid	Process
2900	d9692372935af6488f394ac6bb54abcd_JaffaCakes118.exe
2756	server.exe
2640	server.exe

Loads dropped DLL 5 IoCs

pid	Process
2548	d9692372935af6488f394ac6bb54abcd_JaffaCakes118.exe
2548	d9692372935af6488f394ac6bb54abcd_JaffaCakes118.exe
2900	d9692372935af6488f394ac6bb54abcd_JaffaCakes118.exe
2756	server.exe
2756	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\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\9e12b36449cc78d34159a3c000b6fc6a = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .."	server.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3063565911-2056067323-3330884624-1000\Software\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 2548 set thread context of 2900	2548	d9692372935af6488f394ac6bb54abcd_JaffaCakes118.exe	33
PID 2756 set thread context of 2640	2756	server.exe	39

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	d9692372935af6488f394ac6bb54abcd_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d9692372935af6488f394ac6bb54abcd_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	server.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	reg.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	server.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2548	d9692372935af6488f394ac6bb54abcd_JaffaCakes118.exe
2548	d9692372935af6488f394ac6bb54abcd_JaffaCakes118.exe
2756	server.exe
2756	server.exe

Suspicious use of AdjustPrivilegeToken 35 IoCs

description	pid	Process
Token: SeDebugPrivilege	2548	d9692372935af6488f394ac6bb54abcd_JaffaCakes118.exe
Token: SeDebugPrivilege	2756	server.exe
Token: SeDebugPrivilege	2640	server.exe
Token: 33	2640	server.exe
Token: SeIncBasePriorityPrivilege	2640	server.exe
Token: 33	2640	server.exe
Token: SeIncBasePriorityPrivilege	2640	server.exe
Token: 33	2640	server.exe
Token: SeIncBasePriorityPrivilege	2640	server.exe
Token: 33	2640	server.exe
Token: SeIncBasePriorityPrivilege	2640	server.exe
Token: 33	2640	server.exe
Token: SeIncBasePriorityPrivilege	2640	server.exe
Token: 33	2640	server.exe
Token: SeIncBasePriorityPrivilege	2640	server.exe
Token: 33	2640	server.exe
Token: SeIncBasePriorityPrivilege	2640	server.exe
Token: 33	2640	server.exe
Token: SeIncBasePriorityPrivilege	2640	server.exe
Token: 33	2640	server.exe
Token: SeIncBasePriorityPrivilege	2640	server.exe
Token: 33	2640	server.exe
Token: SeIncBasePriorityPrivilege	2640	server.exe
Token: 33	2640	server.exe
Token: SeIncBasePriorityPrivilege	2640	server.exe
Token: 33	2640	server.exe
Token: SeIncBasePriorityPrivilege	2640	server.exe
Token: 33	2640	server.exe
Token: SeIncBasePriorityPrivilege	2640	server.exe
Token: 33	2640	server.exe
Token: SeIncBasePriorityPrivilege	2640	server.exe
Token: 33	2640	server.exe
Token: SeIncBasePriorityPrivilege	2640	server.exe
Token: 33	2640	server.exe
Token: SeIncBasePriorityPrivilege	2640	server.exe

Suspicious use of WriteProcessMemory 42 IoCs

description	pid	Process	procid_target
PID 2548 wrote to memory of 2544	2548	d9692372935af6488f394ac6bb54abcd_JaffaCakes118.exe	30
PID 2548 wrote to memory of 2544	2548	d9692372935af6488f394ac6bb54abcd_JaffaCakes118.exe	30
PID 2548 wrote to memory of 2544	2548	d9692372935af6488f394ac6bb54abcd_JaffaCakes118.exe	30
PID 2548 wrote to memory of 2544	2548	d9692372935af6488f394ac6bb54abcd_JaffaCakes118.exe	30
PID 2544 wrote to memory of 2676	2544	cmd.exe	32
PID 2544 wrote to memory of 2676	2544	cmd.exe	32
PID 2544 wrote to memory of 2676	2544	cmd.exe	32
PID 2544 wrote to memory of 2676	2544	cmd.exe	32
PID 2548 wrote to memory of 2900	2548	d9692372935af6488f394ac6bb54abcd_JaffaCakes118.exe	33
PID 2548 wrote to memory of 2900	2548	d9692372935af6488f394ac6bb54abcd_JaffaCakes118.exe	33
PID 2548 wrote to memory of 2900	2548	d9692372935af6488f394ac6bb54abcd_JaffaCakes118.exe	33
PID 2548 wrote to memory of 2900	2548	d9692372935af6488f394ac6bb54abcd_JaffaCakes118.exe	33
PID 2548 wrote to memory of 2900	2548	d9692372935af6488f394ac6bb54abcd_JaffaCakes118.exe	33
PID 2548 wrote to memory of 2900	2548	d9692372935af6488f394ac6bb54abcd_JaffaCakes118.exe	33
PID 2548 wrote to memory of 2900	2548	d9692372935af6488f394ac6bb54abcd_JaffaCakes118.exe	33
PID 2548 wrote to memory of 2900	2548	d9692372935af6488f394ac6bb54abcd_JaffaCakes118.exe	33
PID 2548 wrote to memory of 2900	2548	d9692372935af6488f394ac6bb54abcd_JaffaCakes118.exe	33
PID 2900 wrote to memory of 2756	2900	d9692372935af6488f394ac6bb54abcd_JaffaCakes118.exe	35
PID 2900 wrote to memory of 2756	2900	d9692372935af6488f394ac6bb54abcd_JaffaCakes118.exe	35
PID 2900 wrote to memory of 2756	2900	d9692372935af6488f394ac6bb54abcd_JaffaCakes118.exe	35
PID 2900 wrote to memory of 2756	2900	d9692372935af6488f394ac6bb54abcd_JaffaCakes118.exe	35
PID 2756 wrote to memory of 2660	2756	server.exe	36
PID 2756 wrote to memory of 2660	2756	server.exe	36
PID 2756 wrote to memory of 2660	2756	server.exe	36
PID 2756 wrote to memory of 2660	2756	server.exe	36
PID 2660 wrote to memory of 2292	2660	cmd.exe	38
PID 2660 wrote to memory of 2292	2660	cmd.exe	38
PID 2660 wrote to memory of 2292	2660	cmd.exe	38
PID 2660 wrote to memory of 2292	2660	cmd.exe	38
PID 2756 wrote to memory of 2640	2756	server.exe	39
PID 2756 wrote to memory of 2640	2756	server.exe	39
PID 2756 wrote to memory of 2640	2756	server.exe	39
PID 2756 wrote to memory of 2640	2756	server.exe	39
PID 2756 wrote to memory of 2640	2756	server.exe	39
PID 2756 wrote to memory of 2640	2756	server.exe	39
PID 2756 wrote to memory of 2640	2756	server.exe	39
PID 2756 wrote to memory of 2640	2756	server.exe	39
PID 2756 wrote to memory of 2640	2756	server.exe	39
PID 2640 wrote to memory of 2584	2640	server.exe	40
PID 2640 wrote to memory of 2584	2640	server.exe	40
PID 2640 wrote to memory of 2584	2640	server.exe	40
PID 2640 wrote to memory of 2584	2640	server.exe	40

C:\Users\Admin\AppData\Local\Temp\d9692372935af6488f394ac6bb54abcd_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\d9692372935af6488f394ac6bb54abcd_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:2548
- 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:2544
- - 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:2676
- C:\Users\Admin\AppData\Local\Temp\d9692372935af6488f394ac6bb54abcd_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\d9692372935af6488f394ac6bb54abcd_JaffaCakes118.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2900
- - 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:2756
  - - 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:2660
    - - 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:2292
  - - 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:2640
    - - 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:2584

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

Replay Monitor

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Downloads

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

Filesize
843B

MD5
4bfeae86874fa81728633c87b21f4737

SHA1
a0a5d0cfe14c4a2a5f340843c440817c354d9aa1

SHA256
2ab95989730c340be5c22975c34dbff81764742242e1e62cf51ccca16f492dae

SHA512
8e1c76b4b10b66185d53477968fc49a745ec7df3204a53de2161ea82c81ce356f3c9eeda2252bc722a96ffa37c37e30f4f0e6db189b8bcc746ee4a3967876efc

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

Filesize
78KB

MD5
d9692372935af6488f394ac6bb54abcd

SHA1
e027975d43f867f7f975ab70931c4dedfc34fcbe

SHA256
857c0557be413c9659bd43033085ff241ddb5c89f4a0cef4ad200878b4f43368

SHA512
d5194a7affb374418597656e399680058c80462ee8e3d7875d09e33362bd3506ddc8e16d623528378cda6947c09b40fbe8bc05de319c4c0c1cc800ab5da6daa2

Download Submit
memory/2548-0-0x0000000074DD1000-0x0000000074DD2000-memory.dmp

Filesize
4KB

Download
memory/2548-1-0x0000000074DD0000-0x000000007537B000-memory.dmp

Filesize
5.7MB

Download
memory/2548-2-0x0000000074DD0000-0x000000007537B000-memory.dmp

Filesize
5.7MB

Download
memory/2548-23-0x0000000074DD0000-0x000000007537B000-memory.dmp

Filesize
5.7MB

Download
memory/2640-47-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2900-16-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/2900-19-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/2900-14-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2900-13-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/2900-11-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/2900-22-0x0000000074DD0000-0x000000007537B000-memory.dmp

Filesize
5.7MB

Download
memory/2900-21-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/2900-31-0x0000000074DD0000-0x000000007537B000-memory.dmp

Filesize
5.7MB

Download
memory/2900-12-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/2900-10-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download