njrat | 9a93e284738593ec18d5e0c7d23de3a798a2fb7948aa730243edb5fd3566fc3c

Analysis

max time kernel
149s
max time network
152s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
15-09-2024 00:05

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General

Target

9a93e284738593ec18d5e0c7d23de3a798a2fb7948aa730243edb5fd3566fc3c.exe
Size

509KB
MD5

093b753a23c9e8d075a0b5930becc5db
SHA1

1702c0e879306d86a5a66291da6318581df63f1d
SHA256

9a93e284738593ec18d5e0c7d23de3a798a2fb7948aa730243edb5fd3566fc3c
SHA512

e948a28961872ea1b64cafcd0190cc2d85cac5d887b94d4a8eefc24374ca1581c6c9882c6000cea9c6c507b14be6c4f2191118e3aa76cfdb7992d4f5aab11cf2
SSDEEP

6144:BstlOOo8x7n59Z+zyu65QnlQBD57PSNfL:wOOfN590uu6ekV7PSNz

Score

10^/10

njrat loh discovery evasion persistence privilege_escalation trojan

Malware Config

Extracted

Family

njrat

Version

im523

Botnet

Loh

4.tcp.ngrok.io:15397

Mutex

e3a79ad10724ea5246684eaecb0cb4a0

Attributes

reg_key
e3a79ad10724ea5246684eaecb0cb4a0
splitter
|'|'|

Signatures

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
2696	netsh.exe

Executes dropped EXE 1 IoCs

pid	Process
2780	Server.exe

Loads dropped DLL 3 IoCs

pid	Process
2684	9a93e284738593ec18d5e0c7d23de3a798a2fb7948aa730243edb5fd3566fc3c.exe
2684	9a93e284738593ec18d5e0c7d23de3a798a2fb7948aa730243edb5fd3566fc3c.exe
2684	9a93e284738593ec18d5e0c7d23de3a798a2fb7948aa730243edb5fd3566fc3c.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs 4 IoCs

Web Service

T1102

flow	ioc
2	4.tcp.ngrok.io
8	4.tcp.ngrok.io
26	4.tcp.ngrok.io
30	4.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 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	9a93e284738593ec18d5e0c7d23de3a798a2fb7948aa730243edb5fd3566fc3c.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	DllHost.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 37 IoCs

description	pid	Process
Token: SeDebugPrivilege	2780	Server.exe
Token: 33	2780	Server.exe
Token: SeIncBasePriorityPrivilege	2780	Server.exe
Token: 33	2780	Server.exe
Token: SeIncBasePriorityPrivilege	2780	Server.exe
Token: 33	2780	Server.exe
Token: SeIncBasePriorityPrivilege	2780	Server.exe
Token: 33	2780	Server.exe
Token: SeIncBasePriorityPrivilege	2780	Server.exe
Token: 33	2780	Server.exe
Token: SeIncBasePriorityPrivilege	2780	Server.exe
Token: 33	2780	Server.exe
Token: SeIncBasePriorityPrivilege	2780	Server.exe
Token: 33	2780	Server.exe
Token: SeIncBasePriorityPrivilege	2780	Server.exe
Token: 33	2780	Server.exe
Token: SeIncBasePriorityPrivilege	2780	Server.exe
Token: 33	2780	Server.exe
Token: SeIncBasePriorityPrivilege	2780	Server.exe
Token: 33	2780	Server.exe
Token: SeIncBasePriorityPrivilege	2780	Server.exe
Token: 33	2780	Server.exe
Token: SeIncBasePriorityPrivilege	2780	Server.exe
Token: 33	2780	Server.exe
Token: SeIncBasePriorityPrivilege	2780	Server.exe
Token: 33	2780	Server.exe
Token: SeIncBasePriorityPrivilege	2780	Server.exe
Token: 33	2780	Server.exe
Token: SeIncBasePriorityPrivilege	2780	Server.exe
Token: 33	2780	Server.exe
Token: SeIncBasePriorityPrivilege	2780	Server.exe
Token: 33	2780	Server.exe
Token: SeIncBasePriorityPrivilege	2780	Server.exe
Token: 33	2780	Server.exe
Token: SeIncBasePriorityPrivilege	2780	Server.exe
Token: 33	2780	Server.exe
Token: SeIncBasePriorityPrivilege	2780	Server.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2840	DllHost.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2684 wrote to memory of 2780	2684	9a93e284738593ec18d5e0c7d23de3a798a2fb7948aa730243edb5fd3566fc3c.exe	31
PID 2684 wrote to memory of 2780	2684	9a93e284738593ec18d5e0c7d23de3a798a2fb7948aa730243edb5fd3566fc3c.exe	31
PID 2684 wrote to memory of 2780	2684	9a93e284738593ec18d5e0c7d23de3a798a2fb7948aa730243edb5fd3566fc3c.exe	31
PID 2684 wrote to memory of 2780	2684	9a93e284738593ec18d5e0c7d23de3a798a2fb7948aa730243edb5fd3566fc3c.exe	31
PID 2780 wrote to memory of 2696	2780	Server.exe	32
PID 2780 wrote to memory of 2696	2780	Server.exe	32
PID 2780 wrote to memory of 2696	2780	Server.exe	32
PID 2780 wrote to memory of 2696	2780	Server.exe	32

C:\Users\Admin\AppData\Local\Temp\9a93e284738593ec18d5e0c7d23de3a798a2fb7948aa730243edb5fd3566fc3c.exe
"C:\Users\Admin\AppData\Local\Temp\9a93e284738593ec18d5e0c7d23de3a798a2fb7948aa730243edb5fd3566fc3c.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2684
- C:\Users\Admin\AppData\Local\Temp\Server.exe
  "C:\Users\Admin\AppData\Local\Temp\Server.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2780
- - 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:2696

C:\Windows\SysWOW64\DllHost.exe
C:\Windows\SysWOW64\DllHost.exe /Processid:{76D0CB12-7604-4048-B83C-1005C7DDC503}
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of FindShellTrayWindow
PID:2840

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Privilege Escalation

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

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Web Service

T1102

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\Screenshot_2.jpg

Filesize
2KB

MD5
3e8a3d061b73f089a05047e2296539d1

SHA1
5b2dfe1f2797814f60e7a0264b40985127fadbe6

SHA256
97f90454a6070684daf77448247090e79f123f2abbc2dc782832b04ae500e461

SHA512
abde5bbf0fb202edb438778f3f48cfe963a4b5068d3e1e0c8194b1c88062cf8111f912e45c8d22406080088f93b950a19d5b13d8da3a59dcef9e6fa1ab6e2799

Download Submit
\Users\Admin\AppData\Local\Temp\Server.exe

Filesize
37KB

MD5
961115e27e215a51ba84005aaedade5b

SHA1
af550890c01d1f75e901f6dff1b7838788dedbd0

SHA256
74831b89ba10ee38897390a4e9caffad33ad7fe184b0604fa36c26956f7d28b3

SHA512
0f6526bbab05adebca702053b7b4b95b9945d1e3bfc95fbd87fee7cbb77a5944ec1b29e63df20e83fe4aedfd143d57662c1e3152ed80fe8032777bdf908f28a1

Download Submit
memory/2684-4-0x0000000000E70000-0x0000000000E72000-memory.dmp

Filesize
8KB

Download
memory/2840-5-0x0000000000210000-0x0000000000212000-memory.dmp

Filesize
8KB

Download
memory/2840-6-0x0000000001B10000-0x0000000001B11000-memory.dmp

Filesize
4KB

Download
memory/2840-20-0x0000000001B10000-0x0000000001B11000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads