njrat | 5f98850c93410730ab6562feef04fefe3855e3ff81dc6ea30ee9283b3b0615cb

Analysis

max time kernel
150s
max time network
147s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-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 discovery evasion persistence privilege_escalation trojan

Malware Config

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-1-5-21-2170637797-568393320-3232933035-1000\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-1-5-21-2170637797-568393320-3232933035-1000\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
3004	netsh.exe

Checks computer location settings 2 TTPs 3 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2170637797-568393320-3232933035-1000\Control Panel\International\Geo\Nation	e7332feab4157604fcfba589b0c1ac10_JaffaCakes118.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2170637797-568393320-3232933035-1000\Control Panel\International\Geo\Nation	e7332feab4157604fcfba589b0c1ac10_JaffaCakes118.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2170637797-568393320-3232933035-1000\Control Panel\International\Geo\Nation	server.exe

Executes dropped EXE 3 IoCs

pid	Process
3580	e7332feab4157604fcfba589b0c1ac10_JaffaCakes118.exe
4300	server.exe
508	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-1-5-21-2170637797-568393320-3232933035-1000\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 5060 set thread context of 3580	5060	e7332feab4157604fcfba589b0c1ac10_JaffaCakes118.exe	95
PID 4300 set thread context of 508	4300	server.exe	105

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

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
5060	e7332feab4157604fcfba589b0c1ac10_JaffaCakes118.exe
5060	e7332feab4157604fcfba589b0c1ac10_JaffaCakes118.exe
4300	server.exe
4300	server.exe

Suspicious use of AdjustPrivilegeToken 35 IoCs

description	pid	Process
Token: SeDebugPrivilege	5060	e7332feab4157604fcfba589b0c1ac10_JaffaCakes118.exe
Token: SeDebugPrivilege	4300	server.exe
Token: SeDebugPrivilege	508	server.exe
Token: 33	508	server.exe
Token: SeIncBasePriorityPrivilege	508	server.exe
Token: 33	508	server.exe
Token: SeIncBasePriorityPrivilege	508	server.exe
Token: 33	508	server.exe
Token: SeIncBasePriorityPrivilege	508	server.exe
Token: 33	508	server.exe
Token: SeIncBasePriorityPrivilege	508	server.exe
Token: 33	508	server.exe
Token: SeIncBasePriorityPrivilege	508	server.exe
Token: 33	508	server.exe
Token: SeIncBasePriorityPrivilege	508	server.exe
Token: 33	508	server.exe
Token: SeIncBasePriorityPrivilege	508	server.exe
Token: 33	508	server.exe
Token: SeIncBasePriorityPrivilege	508	server.exe
Token: 33	508	server.exe
Token: SeIncBasePriorityPrivilege	508	server.exe
Token: 33	508	server.exe
Token: SeIncBasePriorityPrivilege	508	server.exe
Token: 33	508	server.exe
Token: SeIncBasePriorityPrivilege	508	server.exe
Token: 33	508	server.exe
Token: SeIncBasePriorityPrivilege	508	server.exe
Token: 33	508	server.exe
Token: SeIncBasePriorityPrivilege	508	server.exe
Token: 33	508	server.exe
Token: SeIncBasePriorityPrivilege	508	server.exe
Token: 33	508	server.exe
Token: SeIncBasePriorityPrivilege	508	server.exe
Token: 33	508	server.exe
Token: SeIncBasePriorityPrivilege	508	server.exe

Suspicious use of WriteProcessMemory 34 IoCs

description	pid	Process	procid_target
PID 5060 wrote to memory of 1584	5060	e7332feab4157604fcfba589b0c1ac10_JaffaCakes118.exe	89
PID 5060 wrote to memory of 1584	5060	e7332feab4157604fcfba589b0c1ac10_JaffaCakes118.exe	89
PID 5060 wrote to memory of 1584	5060	e7332feab4157604fcfba589b0c1ac10_JaffaCakes118.exe	89
PID 1584 wrote to memory of 4356	1584	cmd.exe	91
PID 1584 wrote to memory of 4356	1584	cmd.exe	91
PID 1584 wrote to memory of 4356	1584	cmd.exe	91
PID 5060 wrote to memory of 3580	5060	e7332feab4157604fcfba589b0c1ac10_JaffaCakes118.exe	95
PID 5060 wrote to memory of 3580	5060	e7332feab4157604fcfba589b0c1ac10_JaffaCakes118.exe	95
PID 5060 wrote to memory of 3580	5060	e7332feab4157604fcfba589b0c1ac10_JaffaCakes118.exe	95
PID 5060 wrote to memory of 3580	5060	e7332feab4157604fcfba589b0c1ac10_JaffaCakes118.exe	95
PID 5060 wrote to memory of 3580	5060	e7332feab4157604fcfba589b0c1ac10_JaffaCakes118.exe	95
PID 5060 wrote to memory of 3580	5060	e7332feab4157604fcfba589b0c1ac10_JaffaCakes118.exe	95
PID 5060 wrote to memory of 3580	5060	e7332feab4157604fcfba589b0c1ac10_JaffaCakes118.exe	95
PID 5060 wrote to memory of 3580	5060	e7332feab4157604fcfba589b0c1ac10_JaffaCakes118.exe	95
PID 3580 wrote to memory of 4300	3580	e7332feab4157604fcfba589b0c1ac10_JaffaCakes118.exe	101
PID 3580 wrote to memory of 4300	3580	e7332feab4157604fcfba589b0c1ac10_JaffaCakes118.exe	101
PID 3580 wrote to memory of 4300	3580	e7332feab4157604fcfba589b0c1ac10_JaffaCakes118.exe	101
PID 4300 wrote to memory of 2328	4300	server.exe	102
PID 4300 wrote to memory of 2328	4300	server.exe	102
PID 4300 wrote to memory of 2328	4300	server.exe	102
PID 2328 wrote to memory of 2824	2328	cmd.exe	104
PID 2328 wrote to memory of 2824	2328	cmd.exe	104
PID 2328 wrote to memory of 2824	2328	cmd.exe	104
PID 4300 wrote to memory of 508	4300	server.exe	105
PID 4300 wrote to memory of 508	4300	server.exe	105
PID 4300 wrote to memory of 508	4300	server.exe	105
PID 4300 wrote to memory of 508	4300	server.exe	105
PID 4300 wrote to memory of 508	4300	server.exe	105
PID 4300 wrote to memory of 508	4300	server.exe	105
PID 4300 wrote to memory of 508	4300	server.exe	105
PID 4300 wrote to memory of 508	4300	server.exe	105
PID 508 wrote to memory of 3004	508	server.exe	106
PID 508 wrote to memory of 3004	508	server.exe	106
PID 508 wrote to memory of 3004	508	server.exe	106

C:\Users\Admin\AppData\Local\Temp\e7332feab4157604fcfba589b0c1ac10_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\e7332feab4157604fcfba589b0c1ac10_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:5060
- 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:1584
- - 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:4356
- C:\Users\Admin\AppData\Local\Temp\e7332feab4157604fcfba589b0c1ac10_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\e7332feab4157604fcfba589b0c1ac10_JaffaCakes118.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3580
- - C:\Users\Admin\AppData\Local\Temp\server.exe
    "C:\Users\Admin\AppData\Local\Temp\server.exe"
    3⤵
    - Checks computer location settings
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:4300
  - - 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:2328
    - - 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:2824
  - - 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:508
    - - 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:3004

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4408,i,1330210614411927383,9239043499051775691,262144 --variations-seed-version --mojo-platform-channel-handle=1316 /prefetch:8
1⤵
PID:4112

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

Query Registry

T1012

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\Local\Temp\e7332feab4157604fcfba589b0c1ac10_JaffaCakes118.exe

Filesize
78KB

MD5
e7332feab4157604fcfba589b0c1ac10

SHA1
a0c3de942da595cc952408098b3c086b62efdc1a

SHA256
5f98850c93410730ab6562feef04fefe3855e3ff81dc6ea30ee9283b3b0615cb

SHA512
5cb26866e15292569c24d0f4b6bc370f577de9a1ea992fec52e4606e704a325ebf7ca46da898a79d373eeb7ebbe3f97f3726784aa6f92b5451d5d7fbce7f77b4

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

Filesize
926B

MD5
fa1cafeccd3ac18111a4ba0655f94452

SHA1
0f8e454661d24a34de5ff6f6ba637d8831e582ba

SHA256
5f27f92c217ee3b179c54d4759e8419323d555d5cc1782b684dc028c2039862d

SHA512
ebe540bdb97018701cee28c5366b76c79f765f414ca6849049001fbab02bb63b71897aaaecaf4b2da4feeb2bdfac07b1a8e4997934b4bdc61b835b1002626736

Download Submit
memory/3580-10-0x0000000074DE0000-0x0000000075391000-memory.dmp

Filesize
5.7MB

Download
memory/3580-12-0x0000000074DE0000-0x0000000075391000-memory.dmp

Filesize
5.7MB

Download
memory/3580-25-0x0000000074DE0000-0x0000000075391000-memory.dmp

Filesize
5.7MB

Download
memory/4300-26-0x0000000074DE0000-0x0000000075391000-memory.dmp

Filesize
5.7MB

Download
memory/4300-33-0x0000000074DE0000-0x0000000075391000-memory.dmp

Filesize
5.7MB

Download
memory/5060-0-0x0000000074DE2000-0x0000000074DE3000-memory.dmp

Filesize
4KB

Download
memory/5060-1-0x0000000074DE0000-0x0000000075391000-memory.dmp

Filesize
5.7MB

Download
memory/5060-2-0x0000000074DE0000-0x0000000075391000-memory.dmp

Filesize
5.7MB

Download
memory/5060-11-0x0000000074DE0000-0x0000000075391000-memory.dmp

Filesize
5.7MB

Download