njrat | dd6f0b9730529cfe145d5585eccfb6c68510758d16ffd02043bd1fe73842ee1b

Resubmissions

07-11-2024 16:29

241107-tzeqvawbpe 10

07-11-2024 06:54

241107-hpd6sazqap 10

Analysis

max time kernel
150s
max time network
155s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
07-11-2024 06:54

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General

Target

61bb2c746d218b86b3b9e069899e4ec1bf16a61206e66bfda7badf06915456fd.exe
Size

1.4MB
MD5

c58f3effb9efb892109332a676aae546
SHA1

c1dced7e3e3b49f23cc0125589cc5b29d4055924
SHA256

61bb2c746d218b86b3b9e069899e4ec1bf16a61206e66bfda7badf06915456fd
SHA512

9c9329df603ad34b10437fc6313d61d273b603996a82f88e0d57af9e50ea86bb0cbb2134a3d4905b40fd73cd40222235739f4140cf4de19a3bea352af947adec
SSDEEP

24576:a27mrhic6gvYbAKsy5Ulh3iXWl9557sK6X3ZO0GinMSvTNWfshnGmg/ykTPnewlm:anrhr/vAcWKv6X3o0GQN0s/g/ybDT

Score

10^/10

njrat hacked discovery evasion persistence privilege_escalation spyware stealer trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

HacKed

8.tcp.ngrok.io:12342

Mutex

602fdca88735a1a1338352d8ae49ef80

Attributes

reg_key
602fdca88735a1a1338352d8ae49ef80
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
2860	netsh.exe

Executes dropped EXE 2 IoCs

pid	Process
2880	oJ9jQrjBLr.exe
2912	server.exe

Loads dropped DLL 2 IoCs

pid	Process
1820	61bb2c746d218b86b3b9e069899e4ec1bf16a61206e66bfda7badf06915456fd.exe
2880	oJ9jQrjBLr.exe

Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Credentials from Web Browsers
T1555.003

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-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Windows\CurrentVersion\Run\602fdca88735a1a1338352d8ae49ef80 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .."	server.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\602fdca88735a1a1338352d8ae49ef80 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .."	server.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs 3 IoCs

Web Service

T1102

flow	ioc
3	8.tcp.ngrok.io
22	8.tcp.ngrok.io
41	8.tcp.ngrok.io

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 queried	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2892	1820	WerFault.exe	29

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	61bb2c746d218b86b3b9e069899e4ec1bf16a61206e66bfda7badf06915456fd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	oJ9jQrjBLr.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	server.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
1820	61bb2c746d218b86b3b9e069899e4ec1bf16a61206e66bfda7badf06915456fd.exe
1820	61bb2c746d218b86b3b9e069899e4ec1bf16a61206e66bfda7badf06915456fd.exe
1820	61bb2c746d218b86b3b9e069899e4ec1bf16a61206e66bfda7badf06915456fd.exe
1820	61bb2c746d218b86b3b9e069899e4ec1bf16a61206e66bfda7badf06915456fd.exe
1820	61bb2c746d218b86b3b9e069899e4ec1bf16a61206e66bfda7badf06915456fd.exe
1820	61bb2c746d218b86b3b9e069899e4ec1bf16a61206e66bfda7badf06915456fd.exe

Suspicious use of AdjustPrivilegeToken 34 IoCs

description	pid	Process
Token: SeDebugPrivilege	1820	61bb2c746d218b86b3b9e069899e4ec1bf16a61206e66bfda7badf06915456fd.exe
Token: SeDebugPrivilege	2912	server.exe
Token: 33	2912	server.exe
Token: SeIncBasePriorityPrivilege	2912	server.exe
Token: 33	2912	server.exe
Token: SeIncBasePriorityPrivilege	2912	server.exe
Token: 33	2912	server.exe
Token: SeIncBasePriorityPrivilege	2912	server.exe
Token: 33	2912	server.exe
Token: SeIncBasePriorityPrivilege	2912	server.exe
Token: 33	2912	server.exe
Token: SeIncBasePriorityPrivilege	2912	server.exe
Token: 33	2912	server.exe
Token: SeIncBasePriorityPrivilege	2912	server.exe
Token: 33	2912	server.exe
Token: SeIncBasePriorityPrivilege	2912	server.exe
Token: 33	2912	server.exe
Token: SeIncBasePriorityPrivilege	2912	server.exe
Token: 33	2912	server.exe
Token: SeIncBasePriorityPrivilege	2912	server.exe
Token: 33	2912	server.exe
Token: SeIncBasePriorityPrivilege	2912	server.exe
Token: 33	2912	server.exe
Token: SeIncBasePriorityPrivilege	2912	server.exe
Token: 33	2912	server.exe
Token: SeIncBasePriorityPrivilege	2912	server.exe
Token: 33	2912	server.exe
Token: SeIncBasePriorityPrivilege	2912	server.exe
Token: 33	2912	server.exe
Token: SeIncBasePriorityPrivilege	2912	server.exe
Token: 33	2912	server.exe
Token: SeIncBasePriorityPrivilege	2912	server.exe
Token: 33	2912	server.exe
Token: SeIncBasePriorityPrivilege	2912	server.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 1820 wrote to memory of 2880	1820	61bb2c746d218b86b3b9e069899e4ec1bf16a61206e66bfda7badf06915456fd.exe	30
PID 1820 wrote to memory of 2880	1820	61bb2c746d218b86b3b9e069899e4ec1bf16a61206e66bfda7badf06915456fd.exe	30
PID 1820 wrote to memory of 2880	1820	61bb2c746d218b86b3b9e069899e4ec1bf16a61206e66bfda7badf06915456fd.exe	30
PID 1820 wrote to memory of 2880	1820	61bb2c746d218b86b3b9e069899e4ec1bf16a61206e66bfda7badf06915456fd.exe	30
PID 1820 wrote to memory of 2892	1820	61bb2c746d218b86b3b9e069899e4ec1bf16a61206e66bfda7badf06915456fd.exe	31
PID 1820 wrote to memory of 2892	1820	61bb2c746d218b86b3b9e069899e4ec1bf16a61206e66bfda7badf06915456fd.exe	31
PID 1820 wrote to memory of 2892	1820	61bb2c746d218b86b3b9e069899e4ec1bf16a61206e66bfda7badf06915456fd.exe	31
PID 1820 wrote to memory of 2892	1820	61bb2c746d218b86b3b9e069899e4ec1bf16a61206e66bfda7badf06915456fd.exe	31
PID 2880 wrote to memory of 2912	2880	oJ9jQrjBLr.exe	32
PID 2880 wrote to memory of 2912	2880	oJ9jQrjBLr.exe	32
PID 2880 wrote to memory of 2912	2880	oJ9jQrjBLr.exe	32
PID 2880 wrote to memory of 2912	2880	oJ9jQrjBLr.exe	32
PID 2912 wrote to memory of 2860	2912	server.exe	33
PID 2912 wrote to memory of 2860	2912	server.exe	33
PID 2912 wrote to memory of 2860	2912	server.exe	33
PID 2912 wrote to memory of 2860	2912	server.exe	33

C:\Users\Admin\AppData\Local\Temp\61bb2c746d218b86b3b9e069899e4ec1bf16a61206e66bfda7badf06915456fd.exe
"C:\Users\Admin\AppData\Local\Temp\61bb2c746d218b86b3b9e069899e4ec1bf16a61206e66bfda7badf06915456fd.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1820
- C:\Users\Admin\AppData\Local\Temp\oJ9jQrjBLr.exe
  "C:\Users\Admin\AppData\Local\Temp\oJ9jQrjBLr.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2880
- - C:\Users\Admin\AppData\Local\Temp\server.exe
    "C:\Users\Admin\AppData\Local\Temp\server.exe"
    3⤵
    - Executes dropped EXE
    - Adds Run key to start application
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:2912
  - - C:\Windows\SysWOW64\netsh.exe
      netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\server.exe" "server.exe" ENABLE
      4⤵
      Modifies Windows Firewall
      Event Triggered Execution: Netsh Helper DLL
      System Location Discovery: System Language Discovery
      PID:2860
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1820 -s 1332
  2⤵
  - Program crash
  PID:2892

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

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Web Service

T1102

Exfiltration

Impact

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Downloads

\Users\Admin\AppData\Local\Temp\oJ9jQrjBLr.exe

Filesize
23KB

MD5
059302e210a714b3cebd8c6400d7d12e

SHA1
eed4e297cdffff9815bf456e4f237b699b33de6d

SHA256
7b49bca136184f784b52ca6499108288da623944a0a97eff19e3318364a0a999

SHA512
5ae9f86dc384be6d7acb085132846ef690d0e069f43837e8e9edb89558bfb8c3a5232e47332df10b79ee8df2e4e84c509386c5fbb9f8b5a7659ff8cacb1a4dcc

Download Submit
memory/1820-6-0x0000000000760000-0x00000000007DC000-memory.dmp

Filesize
496KB

Download
memory/1820-2-0x0000000074D40000-0x000000007542E000-memory.dmp

Filesize
6.9MB

Download
memory/1820-4-0x0000000074D40000-0x000000007542E000-memory.dmp

Filesize
6.9MB

Download
memory/1820-3-0x0000000074D40000-0x000000007542E000-memory.dmp

Filesize
6.9MB

Download
memory/1820-5-0x0000000074D40000-0x000000007542E000-memory.dmp

Filesize
6.9MB

Download
memory/1820-0-0x0000000074D4E000-0x0000000074D4F000-memory.dmp

Filesize
4KB

Download
memory/1820-1-0x0000000000860000-0x0000000000B02000-memory.dmp

Filesize
2.6MB

Download
memory/1820-17-0x0000000074D4E000-0x0000000074D4F000-memory.dmp

Filesize
4KB

Download
memory/1820-18-0x0000000074D40000-0x000000007542E000-memory.dmp

Filesize
6.9MB

Download
memory/2880-14-0x0000000070241000-0x0000000070242000-memory.dmp

Filesize
4KB

Download
memory/2880-15-0x0000000070240000-0x00000000707EB000-memory.dmp

Filesize
5.7MB

Download
memory/2880-16-0x0000000070240000-0x00000000707EB000-memory.dmp

Filesize
5.7MB

Download
memory/2880-26-0x0000000070240000-0x00000000707EB000-memory.dmp

Filesize
5.7MB

Download