njrat | f9e9c52ea69950a9c019b2fdb616716f92daa32397aa65da38f7bf7c586527eb

General

Target

JaffaCakes118_68ece29504c74f8c02b92fbd571e7e30.exe
Size

23KB
MD5

68ece29504c74f8c02b92fbd571e7e30
SHA1

708a03ba6e6f45c4bd78cb919914b1bf2484f950
SHA256

f9e9c52ea69950a9c019b2fdb616716f92daa32397aa65da38f7bf7c586527eb
SHA512

0b43bc2fd13ecc27801df2a5f462409a3c7753fa29b571cb4c48fd475587636d56546a5b69d0626a0c4e51a4fd893509d311927a5950eccba90e51ade55dffe7
SSDEEP

384:UMqYmCsg/yJrQ7hucGSl7UJ/4g6JgfCcosjddmRvR6JZlbw8hqIusZzZ2U:UErG0Btl7xRpcnuE

Score

10^/10

njrat hacker discovery evasion persistence privilege_escalation trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

hacker

C2

127.0.0.1:5552

Mutex

d68b61967d730acfe0a71857bf39dadc

Attributes

reg_key
d68b61967d730acfe0a71857bf39dadc
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
2764	netsh.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\d68b61967d730acfe0a71857bf39dadc.exe	system.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\d68b61967d730acfe0a71857bf39dadc.exe	system.exe

Executes dropped EXE 1 IoCs

pid	Process
2088	system.exe

Loads dropped DLL 1 IoCs

pid	Process
2272	JaffaCakes118_68ece29504c74f8c02b92fbd571e7e30.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-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Windows\CurrentVersion\Run\d68b61967d730acfe0a71857bf39dadc = "\"C:\\Users\\Admin\\AppData\\Roaming\\system.exe\" .."	system.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\d68b61967d730acfe0a71857bf39dadc = "\"C:\\Users\\Admin\\AppData\\Roaming\\system.exe\" .."	system.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	JaffaCakes118_68ece29504c74f8c02b92fbd571e7e30.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	2088	system.exe
Token: 33	2088	system.exe
Token: SeIncBasePriorityPrivilege	2088	system.exe
Token: 33	2088	system.exe
Token: SeIncBasePriorityPrivilege	2088	system.exe
Token: 33	2088	system.exe
Token: SeIncBasePriorityPrivilege	2088	system.exe
Token: 33	2088	system.exe
Token: SeIncBasePriorityPrivilege	2088	system.exe
Token: 33	2088	system.exe
Token: SeIncBasePriorityPrivilege	2088	system.exe
Token: 33	2088	system.exe
Token: SeIncBasePriorityPrivilege	2088	system.exe
Token: 33	2088	system.exe
Token: SeIncBasePriorityPrivilege	2088	system.exe
Token: 33	2088	system.exe
Token: SeIncBasePriorityPrivilege	2088	system.exe
Token: 33	2088	system.exe
Token: SeIncBasePriorityPrivilege	2088	system.exe
Token: 33	2088	system.exe
Token: SeIncBasePriorityPrivilege	2088	system.exe
Token: 33	2088	system.exe
Token: SeIncBasePriorityPrivilege	2088	system.exe
Token: 33	2088	system.exe
Token: SeIncBasePriorityPrivilege	2088	system.exe
Token: 33	2088	system.exe
Token: SeIncBasePriorityPrivilege	2088	system.exe
Token: 33	2088	system.exe
Token: SeIncBasePriorityPrivilege	2088	system.exe
Token: 33	2088	system.exe
Token: SeIncBasePriorityPrivilege	2088	system.exe
Token: 33	2088	system.exe
Token: SeIncBasePriorityPrivilege	2088	system.exe
Token: 33	2088	system.exe
Token: SeIncBasePriorityPrivilege	2088	system.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2272 wrote to memory of 2088	2272	JaffaCakes118_68ece29504c74f8c02b92fbd571e7e30.exe	30
PID 2272 wrote to memory of 2088	2272	JaffaCakes118_68ece29504c74f8c02b92fbd571e7e30.exe	30
PID 2272 wrote to memory of 2088	2272	JaffaCakes118_68ece29504c74f8c02b92fbd571e7e30.exe	30
PID 2272 wrote to memory of 2088	2272	JaffaCakes118_68ece29504c74f8c02b92fbd571e7e30.exe	30
PID 2088 wrote to memory of 2764	2088	system.exe	32
PID 2088 wrote to memory of 2764	2088	system.exe	32
PID 2088 wrote to memory of 2764	2088	system.exe	32
PID 2088 wrote to memory of 2764	2088	system.exe	32

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_68ece29504c74f8c02b92fbd571e7e30.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_68ece29504c74f8c02b92fbd571e7e30.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2272
- C:\Users\Admin\AppData\Roaming\system.exe
  "C:\Users\Admin\AppData\Roaming\system.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:2088
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\system.exe" "system.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    - System Location Discovery: System Language Discovery
    PID:2764

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\Roaming\system.exe

Filesize
23KB

MD5
68ece29504c74f8c02b92fbd571e7e30

SHA1
708a03ba6e6f45c4bd78cb919914b1bf2484f950

SHA256
f9e9c52ea69950a9c019b2fdb616716f92daa32397aa65da38f7bf7c586527eb

SHA512
0b43bc2fd13ecc27801df2a5f462409a3c7753fa29b571cb4c48fd475587636d56546a5b69d0626a0c4e51a4fd893509d311927a5950eccba90e51ade55dffe7

Download Submit
memory/2088-10-0x00000000741C0000-0x000000007476B000-memory.dmp

Filesize
5.7MB

Download
memory/2088-14-0x00000000741C0000-0x000000007476B000-memory.dmp

Filesize
5.7MB

Download
memory/2272-0-0x00000000741C1000-0x00000000741C2000-memory.dmp

Filesize
4KB

Download
memory/2272-1-0x00000000741C0000-0x000000007476B000-memory.dmp

Filesize
5.7MB

Download
memory/2272-2-0x00000000741C0000-0x000000007476B000-memory.dmp

Filesize
5.7MB

Download
memory/2272-11-0x00000000741C0000-0x000000007476B000-memory.dmp

Filesize
5.7MB

Download
memory/2272-12-0x00000000741C0000-0x000000007476B000-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