njrat | 47b1e0d6288e6e4f91c8c998e7ed19f51bd94b34028867503fa86fcbc149e378

General

Target

e4c7fcfe971327022a38210689982333_JaffaCakes118.exe
Size

385KB
MD5

e4c7fcfe971327022a38210689982333
SHA1

6a8ee0ab1a346744f03de0c0c4e3ec5405c86ccc
SHA256

47b1e0d6288e6e4f91c8c998e7ed19f51bd94b34028867503fa86fcbc149e378
SHA512

cfc83c794d91ea3b4eae6272c0ed4f2bb0d49f62ab2c299473c3d1888d18edf86e498864b6ac242877f7759751e3aa2d7e45b92ef26ac341f67c8ee9e8623466
SSDEEP

12288:PMMMMMMMMMMMMMMMrMMMMMMMMMMMMMMMMXnTppc6o7MMMMMMMMMMMMMMVGX3jaAt:PMMMMMMMMMMMMMMMrMMMMMMMMMMMMMM5

Score

10^/10

njrat discovery evasion persistence privilege_escalation trojan

Malware Config

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

pid	Process
2020	netsh.exe

Checks computer location settings 2 TTPs 2 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-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation	e4c7fcfe971327022a38210689982333_JaffaCakes118.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation	Software.exe

Executes dropped EXE 2 IoCs

pid	Process
3740	Software.exe
4076	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-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\b5edc749cb8144fc0676a96be1a99c50 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .."	server.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\b5edc749cb8144fc0676a96be1a99c50 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .."	server.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 3 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	Software.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	server.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

Suspicious use of AdjustPrivilegeToken 33 IoCs

description	pid	Process
Token: SeDebugPrivilege	4076	server.exe
Token: 33	4076	server.exe
Token: SeIncBasePriorityPrivilege	4076	server.exe
Token: 33	4076	server.exe
Token: SeIncBasePriorityPrivilege	4076	server.exe
Token: 33	4076	server.exe
Token: SeIncBasePriorityPrivilege	4076	server.exe
Token: 33	4076	server.exe
Token: SeIncBasePriorityPrivilege	4076	server.exe
Token: 33	4076	server.exe
Token: SeIncBasePriorityPrivilege	4076	server.exe
Token: 33	4076	server.exe
Token: SeIncBasePriorityPrivilege	4076	server.exe
Token: 33	4076	server.exe
Token: SeIncBasePriorityPrivilege	4076	server.exe
Token: 33	4076	server.exe
Token: SeIncBasePriorityPrivilege	4076	server.exe
Token: 33	4076	server.exe
Token: SeIncBasePriorityPrivilege	4076	server.exe
Token: 33	4076	server.exe
Token: SeIncBasePriorityPrivilege	4076	server.exe
Token: 33	4076	server.exe
Token: SeIncBasePriorityPrivilege	4076	server.exe
Token: 33	4076	server.exe
Token: SeIncBasePriorityPrivilege	4076	server.exe
Token: 33	4076	server.exe
Token: SeIncBasePriorityPrivilege	4076	server.exe
Token: 33	4076	server.exe
Token: SeIncBasePriorityPrivilege	4076	server.exe
Token: 33	4076	server.exe
Token: SeIncBasePriorityPrivilege	4076	server.exe
Token: 33	4076	server.exe
Token: SeIncBasePriorityPrivilege	4076	server.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 4552 wrote to memory of 3740	4552	e4c7fcfe971327022a38210689982333_JaffaCakes118.exe	83
PID 4552 wrote to memory of 3740	4552	e4c7fcfe971327022a38210689982333_JaffaCakes118.exe	83
PID 4552 wrote to memory of 3740	4552	e4c7fcfe971327022a38210689982333_JaffaCakes118.exe	83
PID 3740 wrote to memory of 4076	3740	Software.exe	87
PID 3740 wrote to memory of 4076	3740	Software.exe	87
PID 3740 wrote to memory of 4076	3740	Software.exe	87
PID 4076 wrote to memory of 2020	4076	server.exe	95
PID 4076 wrote to memory of 2020	4076	server.exe	95
PID 4076 wrote to memory of 2020	4076	server.exe	95

C:\Users\Admin\AppData\Local\Temp\e4c7fcfe971327022a38210689982333_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\e4c7fcfe971327022a38210689982333_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4552
- C:\Users\Admin\AppData\Local\Temp\Software.exe
  "C:\Users\Admin\AppData\Local\Temp\Software.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3740
- - C:\Users\Admin\AppData\Local\Temp\server.exe
    "C:\Users\Admin\AppData\Local\Temp\server.exe"
    3⤵
    - Executes dropped EXE
    - Adds Run key to start application
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:4076
  - - C:\Windows\SysWOW64\netsh.exe
      netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\server.exe" "server.exe" ENABLE
      4⤵
      Modifies Windows Firewall
      Event Triggered Execution: Netsh Helper DLL
      System Location Discovery: System Language Discovery
      PID:2020

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

Query Registry

1

T1012

System Information Discovery

2

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

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

Filesize
23KB

MD5
b4ccc689166c7d3f69e585db8fc16ced

SHA1
f363a4e613518b7d6342facc7ee6195021b90c04

SHA256
8f2dac2eab218f9148a6511a0cfe1fb8c7671e1c714607c79d854df7b100932c

SHA512
71f7ba69c484d93345bf0c2663d52613fbd52528a7d57ae800e48bc82776b3764147f1fb00a60c4acd0ed4dfc968c934f9d3439e5f076abc5b965b3bd602bc30

Download Submit
memory/3740-31-0x0000000074990000-0x0000000074F41000-memory.dmp

Filesize
5.7MB

Download
memory/3740-21-0x0000000074990000-0x0000000074F41000-memory.dmp

Filesize
5.7MB

Download
memory/3740-19-0x00000000012C0000-0x00000000012D0000-memory.dmp

Filesize
64KB

Download
memory/3740-20-0x0000000074992000-0x0000000074993000-memory.dmp

Filesize
4KB

Download
memory/4552-3-0x000000001C180000-0x000000001C21C000-memory.dmp

Filesize
624KB

Download
memory/4552-6-0x00007FFB52850000-0x00007FFB531F1000-memory.dmp

Filesize
9.6MB

Download
memory/4552-7-0x000000001E0F0000-0x000000001E196000-memory.dmp

Filesize
664KB

Download
memory/4552-8-0x00007FFB52850000-0x00007FFB531F1000-memory.dmp

Filesize
9.6MB

Download
memory/4552-5-0x00007FFB52850000-0x00007FFB531F1000-memory.dmp

Filesize
9.6MB

Download
memory/4552-18-0x00007FFB52850000-0x00007FFB531F1000-memory.dmp

Filesize
9.6MB

Download
memory/4552-4-0x0000000000DB0000-0x0000000000DB8000-memory.dmp

Filesize
32KB

Download
memory/4552-0-0x00007FFB52B05000-0x00007FFB52B06000-memory.dmp

Filesize
4KB

Download
memory/4552-2-0x00007FFB52850000-0x00007FFB531F1000-memory.dmp

Filesize
9.6MB

Download
memory/4552-1-0x000000001C780000-0x000000001CC4E000-memory.dmp

Filesize
4.8MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads