njrat | 6d3e25cfe701bac6f08302a46c7db8029a771c30ff83fe758d04dbaea7c6b971

Analysis

max time kernel
149s
max time network
17s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
04-12-2024 05:25

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General

Target

c1034cc96ccfc5be349e6bc9804c10d7_JaffaCakes118.exe
Size

190KB
MD5

c1034cc96ccfc5be349e6bc9804c10d7
SHA1

55768a533e81becb37537b9233ef1df3c5fe5120
SHA256

6d3e25cfe701bac6f08302a46c7db8029a771c30ff83fe758d04dbaea7c6b971
SHA512

61f29fc15b20f516e2fb884146e505c60ce02f7072d0f20459a838787cd7da4003160acb6cca48b9b7099af51e7a918f33976068f21e5bcf10d9da118d40a038
SSDEEP

3072:5y34ck4LjyUgxLJN3vlMZnRYThATMCwRmkLhW+2JPKzkDuFtYxKnV/u/VX/FEcmO:YGG4CwRmkLCCkCHYs0X/Fxe

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
2840	netsh.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\146a1dcf4434bcd2576ab08eb7da653c.exe	RuntimeBroker.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\146a1dcf4434bcd2576ab08eb7da653c.exe	RuntimeBroker.exe

Executes dropped EXE 1 IoCs

pid	Process
3004	RuntimeBroker.exe

Loads dropped DLL 1 IoCs

pid	Process
2380	c1034cc96ccfc5be349e6bc9804c10d7_JaffaCakes118.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-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Windows\CurrentVersion\Run\146a1dcf4434bcd2576ab08eb7da653c = "\"C:\\Users\\Admin\\RuntimeBroker.exe\" .."	RuntimeBroker.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\146a1dcf4434bcd2576ab08eb7da653c = "\"C:\\Users\\Admin\\RuntimeBroker.exe\" .."	RuntimeBroker.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	c1034cc96ccfc5be349e6bc9804c10d7_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RuntimeBroker.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

System Time Discovery 1 TTPs 1 IoCs

Adversary may gather the system time and/or time zone settings from a local or remote system.

discovery

System Time Discovery

T1124

pid	Process
2840	netsh.exe

Suspicious use of AdjustPrivilegeToken 35 IoCs

description	pid	Process
Token: SeDebugPrivilege	3004	RuntimeBroker.exe
Token: 33	3004	RuntimeBroker.exe
Token: SeIncBasePriorityPrivilege	3004	RuntimeBroker.exe
Token: 33	3004	RuntimeBroker.exe
Token: SeIncBasePriorityPrivilege	3004	RuntimeBroker.exe
Token: 33	3004	RuntimeBroker.exe
Token: SeIncBasePriorityPrivilege	3004	RuntimeBroker.exe
Token: 33	3004	RuntimeBroker.exe
Token: SeIncBasePriorityPrivilege	3004	RuntimeBroker.exe
Token: 33	3004	RuntimeBroker.exe
Token: SeIncBasePriorityPrivilege	3004	RuntimeBroker.exe
Token: 33	3004	RuntimeBroker.exe
Token: SeIncBasePriorityPrivilege	3004	RuntimeBroker.exe
Token: 33	3004	RuntimeBroker.exe
Token: SeIncBasePriorityPrivilege	3004	RuntimeBroker.exe
Token: 33	3004	RuntimeBroker.exe
Token: SeIncBasePriorityPrivilege	3004	RuntimeBroker.exe
Token: 33	3004	RuntimeBroker.exe
Token: SeIncBasePriorityPrivilege	3004	RuntimeBroker.exe
Token: 33	3004	RuntimeBroker.exe
Token: SeIncBasePriorityPrivilege	3004	RuntimeBroker.exe
Token: 33	3004	RuntimeBroker.exe
Token: SeIncBasePriorityPrivilege	3004	RuntimeBroker.exe
Token: 33	3004	RuntimeBroker.exe
Token: SeIncBasePriorityPrivilege	3004	RuntimeBroker.exe
Token: 33	3004	RuntimeBroker.exe
Token: SeIncBasePriorityPrivilege	3004	RuntimeBroker.exe
Token: 33	3004	RuntimeBroker.exe
Token: SeIncBasePriorityPrivilege	3004	RuntimeBroker.exe
Token: 33	3004	RuntimeBroker.exe
Token: SeIncBasePriorityPrivilege	3004	RuntimeBroker.exe
Token: 33	3004	RuntimeBroker.exe
Token: SeIncBasePriorityPrivilege	3004	RuntimeBroker.exe
Token: 33	3004	RuntimeBroker.exe
Token: SeIncBasePriorityPrivilege	3004	RuntimeBroker.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2380 wrote to memory of 3004	2380	c1034cc96ccfc5be349e6bc9804c10d7_JaffaCakes118.exe	29
PID 2380 wrote to memory of 3004	2380	c1034cc96ccfc5be349e6bc9804c10d7_JaffaCakes118.exe	29
PID 2380 wrote to memory of 3004	2380	c1034cc96ccfc5be349e6bc9804c10d7_JaffaCakes118.exe	29
PID 2380 wrote to memory of 3004	2380	c1034cc96ccfc5be349e6bc9804c10d7_JaffaCakes118.exe	29
PID 3004 wrote to memory of 2840	3004	RuntimeBroker.exe	30
PID 3004 wrote to memory of 2840	3004	RuntimeBroker.exe	30
PID 3004 wrote to memory of 2840	3004	RuntimeBroker.exe	30
PID 3004 wrote to memory of 2840	3004	RuntimeBroker.exe	30

C:\Users\Admin\AppData\Local\Temp\c1034cc96ccfc5be349e6bc9804c10d7_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\c1034cc96ccfc5be349e6bc9804c10d7_JaffaCakes118.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2380
- C:\Users\Admin\RuntimeBroker.exe
  "C:\Users\Admin\RuntimeBroker.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3004
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\RuntimeBroker.exe" "RuntimeBroker.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    - System Location Discovery: System Language Discovery
    - System Time Discovery
    PID:2840

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

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

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

System Time Discovery

T1124

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

\Users\Admin\RuntimeBroker.exe

Filesize
190KB

MD5
c1034cc96ccfc5be349e6bc9804c10d7

SHA1
55768a533e81becb37537b9233ef1df3c5fe5120

SHA256
6d3e25cfe701bac6f08302a46c7db8029a771c30ff83fe758d04dbaea7c6b971

SHA512
61f29fc15b20f516e2fb884146e505c60ce02f7072d0f20459a838787cd7da4003160acb6cca48b9b7099af51e7a918f33976068f21e5bcf10d9da118d40a038

Download Submit
memory/2380-0-0x0000000074DD1000-0x0000000074DD2000-memory.dmp

Filesize
4KB

Download
memory/2380-1-0x0000000074DD0000-0x000000007537B000-memory.dmp

Filesize
5.7MB

Download
memory/2380-2-0x0000000074DD0000-0x000000007537B000-memory.dmp

Filesize
5.7MB

Download
memory/2380-10-0x0000000074DD0000-0x000000007537B000-memory.dmp

Filesize
5.7MB

Download
memory/3004-13-0x0000000074DD0000-0x000000007537B000-memory.dmp

Filesize
5.7MB

Download
memory/3004-12-0x0000000074DD0000-0x000000007537B000-memory.dmp

Filesize
5.7MB

Download
memory/3004-11-0x0000000074DD0000-0x000000007537B000-memory.dmp

Filesize
5.7MB

Download
memory/3004-15-0x0000000074DD0000-0x000000007537B000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads