njrat | ffe980e4aa3616df577f94d1a4f03e60a6d1fc1d3e692e085e34beb6c82c5df0

General

Target

JaffaCakes118_63ef499eddfefc58ffa1f95ab35279a0.exe
Size

24KB
MD5

63ef499eddfefc58ffa1f95ab35279a0
SHA1

f528f06375cc2a27e801d755e401a525055a758d
SHA256

ffe980e4aa3616df577f94d1a4f03e60a6d1fc1d3e692e085e34beb6c82c5df0
SHA512

cb2cc6f264edeeb4509b120d44e3f6b1ea85fcba58f36a4d36e2739c54d8256c573671058830ef569a1d7c1a3a335ae4531acc7c9abda7464b80e5e0627d12e4
SSDEEP

384:tpN+3wqW7phTScpEbzShQh9AOuWRm9mXEr24RiNsf/EU/45Euc722qrMuldPUgsO:HNfqbSU4FXiNsf/z/C/UU/PUXKp

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
2800	netsh.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\4c16d7ff0b754ca7057996d796854870.exe	Server.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\4c16d7ff0b754ca7057996d796854870.exe	Server.exe

Executes dropped EXE 1 IoCs

pid	Process
2540	Server.exe

Loads dropped DLL 1 IoCs

pid	Process
3008	JaffaCakes118_63ef499eddfefc58ffa1f95ab35279a0.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-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Windows\CurrentVersion\Run\4c16d7ff0b754ca7057996d796854870 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\Server.exe\" .."	Server.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\4c16d7ff0b754ca7057996d796854870 = "\"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 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_63ef499eddfefc58ffa1f95ab35279a0.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 35 IoCs

description	pid	Process
Token: SeDebugPrivilege	2540	Server.exe
Token: 33	2540	Server.exe
Token: SeIncBasePriorityPrivilege	2540	Server.exe
Token: 33	2540	Server.exe
Token: SeIncBasePriorityPrivilege	2540	Server.exe
Token: 33	2540	Server.exe
Token: SeIncBasePriorityPrivilege	2540	Server.exe
Token: 33	2540	Server.exe
Token: SeIncBasePriorityPrivilege	2540	Server.exe
Token: 33	2540	Server.exe
Token: SeIncBasePriorityPrivilege	2540	Server.exe
Token: 33	2540	Server.exe
Token: SeIncBasePriorityPrivilege	2540	Server.exe
Token: 33	2540	Server.exe
Token: SeIncBasePriorityPrivilege	2540	Server.exe
Token: 33	2540	Server.exe
Token: SeIncBasePriorityPrivilege	2540	Server.exe
Token: 33	2540	Server.exe
Token: SeIncBasePriorityPrivilege	2540	Server.exe
Token: 33	2540	Server.exe
Token: SeIncBasePriorityPrivilege	2540	Server.exe
Token: 33	2540	Server.exe
Token: SeIncBasePriorityPrivilege	2540	Server.exe
Token: 33	2540	Server.exe
Token: SeIncBasePriorityPrivilege	2540	Server.exe
Token: 33	2540	Server.exe
Token: SeIncBasePriorityPrivilege	2540	Server.exe
Token: 33	2540	Server.exe
Token: SeIncBasePriorityPrivilege	2540	Server.exe
Token: 33	2540	Server.exe
Token: SeIncBasePriorityPrivilege	2540	Server.exe
Token: 33	2540	Server.exe
Token: SeIncBasePriorityPrivilege	2540	Server.exe
Token: 33	2540	Server.exe
Token: SeIncBasePriorityPrivilege	2540	Server.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 3008 wrote to memory of 2540	3008	JaffaCakes118_63ef499eddfefc58ffa1f95ab35279a0.exe	30
PID 3008 wrote to memory of 2540	3008	JaffaCakes118_63ef499eddfefc58ffa1f95ab35279a0.exe	30
PID 3008 wrote to memory of 2540	3008	JaffaCakes118_63ef499eddfefc58ffa1f95ab35279a0.exe	30
PID 3008 wrote to memory of 2540	3008	JaffaCakes118_63ef499eddfefc58ffa1f95ab35279a0.exe	30
PID 2540 wrote to memory of 2800	2540	Server.exe	32
PID 2540 wrote to memory of 2800	2540	Server.exe	32
PID 2540 wrote to memory of 2800	2540	Server.exe	32
PID 2540 wrote to memory of 2800	2540	Server.exe	32

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_63ef499eddfefc58ffa1f95ab35279a0.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_63ef499eddfefc58ffa1f95ab35279a0.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3008
- C:\Users\Admin\AppData\Local\Temp\Server.exe
  "C:\Users\Admin\AppData\Local\Temp\Server.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:2540
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\Server.exe" "Server.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    - System Location Discovery: System Language Discovery
    PID:2800

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

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\Server.exe

Filesize
24KB

MD5
63ef499eddfefc58ffa1f95ab35279a0

SHA1
f528f06375cc2a27e801d755e401a525055a758d

SHA256
ffe980e4aa3616df577f94d1a4f03e60a6d1fc1d3e692e085e34beb6c82c5df0

SHA512
cb2cc6f264edeeb4509b120d44e3f6b1ea85fcba58f36a4d36e2739c54d8256c573671058830ef569a1d7c1a3a335ae4531acc7c9abda7464b80e5e0627d12e4

Download Submit
memory/2540-11-0x00000000740C0000-0x000000007466B000-memory.dmp

Filesize
5.7MB

Download
memory/2540-12-0x00000000740C0000-0x000000007466B000-memory.dmp

Filesize
5.7MB

Download
memory/2540-14-0x00000000740C0000-0x000000007466B000-memory.dmp

Filesize
5.7MB

Download
memory/3008-0-0x00000000740C1000-0x00000000740C2000-memory.dmp

Filesize
4KB

Download
memory/3008-1-0x00000000740C0000-0x000000007466B000-memory.dmp

Filesize
5.7MB

Download
memory/3008-2-0x00000000740C0000-0x000000007466B000-memory.dmp

Filesize
5.7MB

Download
memory/3008-10-0x00000000740C0000-0x000000007466B000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads