njrat | ebfb0317d4d1df0b27edf617ba139a70c2de4af41734facf12c6aa739149256f

General

Target

JaffaCakes118_6e0cf92bc5a433170cb65467ffc4c7a0.exe
Size

81KB
MD5

6e0cf92bc5a433170cb65467ffc4c7a0
SHA1

498e84529f4869e0efc0d94def30f68be69d4ce0
SHA256

ebfb0317d4d1df0b27edf617ba139a70c2de4af41734facf12c6aa739149256f
SHA512

17a25c9eecc888a8941b30282445f34c284e7d57031e7176a3584b54c34180b1459f9438d5a73147360bac923af3fcc4c6dc3cb4d45aa64b70d78a7f0506fe65
SSDEEP

384:BluBPiZCMfdfSJrQbsLRGSIxYVL46pg/i8BD9FmRvR6JZlbw8hqIusZzZQyo:WOmhtI+RpcnuvL

Score

10^/10

njrat e x t r a discovery evasion persistence privilege_escalation trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

E X T R A

C2

174.127.99.175:1166

Mutex

4215198d9ee8caffb51b32ec2ae3b0ae

Attributes

reg_key
4215198d9ee8caffb51b32ec2ae3b0ae
splitter
|'|'|

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
2788	netsh.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\4215198d9ee8caffb51b32ec2ae3b0ae.exe	System.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\4215198d9ee8caffb51b32ec2ae3b0ae.exe	System.exe

Executes dropped EXE 1 IoCs

pid	Process
1728	System.exe

Loads dropped DLL 1 IoCs

pid	Process
532	JaffaCakes118_6e0cf92bc5a433170cb65467ffc4c7a0.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 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 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	JaffaCakes118_6e0cf92bc5a433170cb65467ffc4c7a0.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	System.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

Suspicious use of AdjustPrivilegeToken 35 IoCs

description	pid	Process
Token: SeDebugPrivilege	1728	System.exe
Token: 33	1728	System.exe
Token: SeIncBasePriorityPrivilege	1728	System.exe
Token: 33	1728	System.exe
Token: SeIncBasePriorityPrivilege	1728	System.exe
Token: 33	1728	System.exe
Token: SeIncBasePriorityPrivilege	1728	System.exe
Token: 33	1728	System.exe
Token: SeIncBasePriorityPrivilege	1728	System.exe
Token: 33	1728	System.exe
Token: SeIncBasePriorityPrivilege	1728	System.exe
Token: 33	1728	System.exe
Token: SeIncBasePriorityPrivilege	1728	System.exe
Token: 33	1728	System.exe
Token: SeIncBasePriorityPrivilege	1728	System.exe
Token: 33	1728	System.exe
Token: SeIncBasePriorityPrivilege	1728	System.exe
Token: 33	1728	System.exe
Token: SeIncBasePriorityPrivilege	1728	System.exe
Token: 33	1728	System.exe
Token: SeIncBasePriorityPrivilege	1728	System.exe
Token: 33	1728	System.exe
Token: SeIncBasePriorityPrivilege	1728	System.exe
Token: 33	1728	System.exe
Token: SeIncBasePriorityPrivilege	1728	System.exe
Token: 33	1728	System.exe
Token: SeIncBasePriorityPrivilege	1728	System.exe
Token: 33	1728	System.exe
Token: SeIncBasePriorityPrivilege	1728	System.exe
Token: 33	1728	System.exe
Token: SeIncBasePriorityPrivilege	1728	System.exe
Token: 33	1728	System.exe
Token: SeIncBasePriorityPrivilege	1728	System.exe
Token: 33	1728	System.exe
Token: SeIncBasePriorityPrivilege	1728	System.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 532 wrote to memory of 1728	532	JaffaCakes118_6e0cf92bc5a433170cb65467ffc4c7a0.exe	31
PID 532 wrote to memory of 1728	532	JaffaCakes118_6e0cf92bc5a433170cb65467ffc4c7a0.exe	31
PID 532 wrote to memory of 1728	532	JaffaCakes118_6e0cf92bc5a433170cb65467ffc4c7a0.exe	31
PID 532 wrote to memory of 1728	532	JaffaCakes118_6e0cf92bc5a433170cb65467ffc4c7a0.exe	31
PID 1728 wrote to memory of 2788	1728	System.exe	32
PID 1728 wrote to memory of 2788	1728	System.exe	32
PID 1728 wrote to memory of 2788	1728	System.exe	32
PID 1728 wrote to memory of 2788	1728	System.exe	32

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6e0cf92bc5a433170cb65467ffc4c7a0.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6e0cf92bc5a433170cb65467ffc4c7a0.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:532
- C:\Users\Admin\AppData\Local\Temp\System.exe
  "C:\Users\Admin\AppData\Local\Temp\System.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1728
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\System.exe" "System.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    - System Location Discovery: System Language Discovery
    PID:2788

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

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

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

1

T1562.004

Credential Access

Discovery

System Information Discovery

1

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

\Users\Admin\AppData\Local\Temp\System.exe

Filesize
81KB

MD5
6e0cf92bc5a433170cb65467ffc4c7a0

SHA1
498e84529f4869e0efc0d94def30f68be69d4ce0

SHA256
ebfb0317d4d1df0b27edf617ba139a70c2de4af41734facf12c6aa739149256f

SHA512
17a25c9eecc888a8941b30282445f34c284e7d57031e7176a3584b54c34180b1459f9438d5a73147360bac923af3fcc4c6dc3cb4d45aa64b70d78a7f0506fe65

Download Submit
memory/532-0-0x0000000074621000-0x0000000074622000-memory.dmp

Filesize
4KB

Download
memory/532-1-0x0000000074620000-0x0000000074BCB000-memory.dmp

Filesize
5.7MB

Download
memory/532-2-0x0000000074620000-0x0000000074BCB000-memory.dmp

Filesize
5.7MB

Download
memory/532-11-0x0000000074620000-0x0000000074BCB000-memory.dmp

Filesize
5.7MB

Download
memory/1728-12-0x0000000074620000-0x0000000074BCB000-memory.dmp

Filesize
5.7MB

Download
memory/1728-10-0x0000000074620000-0x0000000074BCB000-memory.dmp

Filesize
5.7MB

Download
memory/1728-14-0x0000000074620000-0x0000000074BCB000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads