njrat | 2990e779513be76dd88ad41deb8b16a74f1c4c60a467d29f3df6cc4e12439797

General

Target

JaffaCakes118_77264243d3d061a935842abaedc1f330.exe
Size

48KB
MD5

77264243d3d061a935842abaedc1f330
SHA1

be45da5c872d242afed7c7f77ae7f8097970790e
SHA256

2990e779513be76dd88ad41deb8b16a74f1c4c60a467d29f3df6cc4e12439797
SHA512

43c43a91a7439e26f0985637f43e2e637877c72e6e51ead4a010328c3dcf4956b3f5d3b80afd90c584ed100c8ad3a724dc3d0861e41fd5f3c8d489d16518655a
SSDEEP

768:f6kjoeP8C9u1K2ZMDpfKk5tPXVc3HU5Fq+9s:BjtP8iu1K8MDpfKotaEbz9s

Score

10^/10

njrat farewy discovery evasion persistence privilege_escalation trojan

Malware Config

Extracted

Family

njrat

Version

0.6.4

Botnet

FAREWY

C2

fh-oode.no-ip.biz:1177

Mutex

c8719d1d77d4230352487faff9da4aa1

Attributes

reg_key
c8719d1d77d4230352487faff9da4aa1
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
2716	netsh.exe

Executes dropped EXE 2 IoCs

pid	Process
2252	kdNbsqk3poZTpWJuSyHZ.exe
2604	FAREWY.exe

Loads dropped DLL 2 IoCs

pid	Process
2484	JaffaCakes118_77264243d3d061a935842abaedc1f330.exe
2252	kdNbsqk3poZTpWJuSyHZ.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-1-5-21-3533259084-2542256011-65585152-1000\Software\Microsoft\Windows\CurrentVersion\Run\c8719d1d77d4230352487faff9da4aa1 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\FAREWY.exe\" .."	FAREWY.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\c8719d1d77d4230352487faff9da4aa1 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\FAREWY.exe\" .."	FAREWY.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 4 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_77264243d3d061a935842abaedc1f330.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	kdNbsqk3poZTpWJuSyHZ.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	FAREWY.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

Suspicious behavior: EnumeratesProcesses 39 IoCs

pid	Process
2604	FAREWY.exe
2604	FAREWY.exe
2604	FAREWY.exe
2604	FAREWY.exe
2604	FAREWY.exe
2604	FAREWY.exe
2604	FAREWY.exe
2604	FAREWY.exe
2604	FAREWY.exe
2604	FAREWY.exe
2604	FAREWY.exe
2604	FAREWY.exe
2604	FAREWY.exe
2604	FAREWY.exe
2604	FAREWY.exe
2604	FAREWY.exe
2604	FAREWY.exe
2604	FAREWY.exe
2604	FAREWY.exe
2604	FAREWY.exe
2604	FAREWY.exe
2604	FAREWY.exe
2604	FAREWY.exe
2604	FAREWY.exe
2604	FAREWY.exe
2604	FAREWY.exe
2604	FAREWY.exe
2604	FAREWY.exe
2604	FAREWY.exe
2604	FAREWY.exe
2604	FAREWY.exe
2604	FAREWY.exe
2604	FAREWY.exe
2604	FAREWY.exe
2604	FAREWY.exe
2604	FAREWY.exe
2604	FAREWY.exe
2604	FAREWY.exe
2604	FAREWY.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2604	FAREWY.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2484 wrote to memory of 2252	2484	JaffaCakes118_77264243d3d061a935842abaedc1f330.exe	30
PID 2484 wrote to memory of 2252	2484	JaffaCakes118_77264243d3d061a935842abaedc1f330.exe	30
PID 2484 wrote to memory of 2252	2484	JaffaCakes118_77264243d3d061a935842abaedc1f330.exe	30
PID 2484 wrote to memory of 2252	2484	JaffaCakes118_77264243d3d061a935842abaedc1f330.exe	30
PID 2252 wrote to memory of 2604	2252	kdNbsqk3poZTpWJuSyHZ.exe	31
PID 2252 wrote to memory of 2604	2252	kdNbsqk3poZTpWJuSyHZ.exe	31
PID 2252 wrote to memory of 2604	2252	kdNbsqk3poZTpWJuSyHZ.exe	31
PID 2252 wrote to memory of 2604	2252	kdNbsqk3poZTpWJuSyHZ.exe	31
PID 2604 wrote to memory of 2716	2604	FAREWY.exe	32
PID 2604 wrote to memory of 2716	2604	FAREWY.exe	32
PID 2604 wrote to memory of 2716	2604	FAREWY.exe	32
PID 2604 wrote to memory of 2716	2604	FAREWY.exe	32

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_77264243d3d061a935842abaedc1f330.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_77264243d3d061a935842abaedc1f330.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2484
- C:\Users\Admin\AppData\Local\Temp\kdNbsqk3poZTpWJuSyHZ.exe
  "C:\Users\Admin\AppData\Local\Temp\kdNbsqk3poZTpWJuSyHZ.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2252
- - C:\Users\Admin\AppData\Local\Temp\FAREWY.exe
    "C:\Users\Admin\AppData\Local\Temp\FAREWY.exe"
    3⤵
    - Executes dropped EXE
    - Adds Run key to start application
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:2604
  - - C:\Windows\SysWOW64\netsh.exe
      netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\FAREWY.exe" "FAREWY.exe" ENABLE
      4⤵
      Modifies Windows Firewall
      Event Triggered Execution: Netsh Helper DLL
      System Location Discovery: System Language Discovery
      PID:2716

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\kdNbsqk3poZTpWJuSyHZ.exe

Filesize
29KB

MD5
0c282b6175348726c9c82fd546cf425a

SHA1
424cbd6447463d0662a26bcc3bc2bc567dbd1998

SHA256
a51555030667d7ee89569abd3ebf53c519569024aa4e17a8aada3248c0286213

SHA512
39ffb5b9fb552665448d40af195c5ed23d6609a69d585433167f60451876d15fb9d556d2a3b8388a74262119a06c57b7a08592443f60fd02d08d6395d4a86ba7

Download Submit
memory/2252-12-0x00000000746F0000-0x0000000074C9B000-memory.dmp

Filesize
5.7MB

Download
memory/2252-10-0x00000000746F0000-0x0000000074C9B000-memory.dmp

Filesize
5.7MB

Download
memory/2252-14-0x00000000746F0000-0x0000000074C9B000-memory.dmp

Filesize
5.7MB

Download
memory/2252-21-0x00000000746F0000-0x0000000074C9B000-memory.dmp

Filesize
5.7MB

Download
memory/2484-0-0x00000000746F1000-0x00000000746F2000-memory.dmp

Filesize
4KB

Download
memory/2484-1-0x00000000746F0000-0x0000000074C9B000-memory.dmp

Filesize
5.7MB

Download
memory/2484-2-0x00000000746F0000-0x0000000074C9B000-memory.dmp

Filesize
5.7MB

Download
memory/2484-11-0x00000000746F0000-0x0000000074C9B000-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