njrat | a806f7211ce225fce8c1527a0bdbeec0a195b3827475af2cd3cb08aa648ebaaa

General

Target

a806f7211ce225fce8c1527a0bdbeec0a195b3827475af2cd3cb08aa648ebaaa.exe
Size

31KB
MD5

a476d8182cef5f482a38e886023bb8df
SHA1

9ef3984819f6696967d36e04ccb6469bef090745
SHA256

a806f7211ce225fce8c1527a0bdbeec0a195b3827475af2cd3cb08aa648ebaaa
SHA512

bb9944af76d5a4334e941a294bd0934108cfae6e83a4b3ec0cd92da2f059ae5268d930c49781a1996912c8b22ad176344bffa1ecb9a2dd302b8e4a51b46bea44
SSDEEP

768:zDMXZwpJbb2zxxO5oaqHhisfvagQmIDUu0tiicjL:UkKZisrQVkajL

Score

10^/10

njrat mybot discovery evasion persistence privilege_escalation trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

MyBot

C2

192.168.199.2:6522

Mutex

266d34e804b5bdc8c81bfaefe4d0b785

Attributes

reg_key
266d34e804b5bdc8c81bfaefe4d0b785
splitter
Y262SUCZ4UJJ

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
2368	netsh.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\266d34e804b5bdc8c81bfaefe4d0b785.exe	WindowsServices.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\266d34e804b5bdc8c81bfaefe4d0b785.exe	WindowsServices.exe

Executes dropped EXE 1 IoCs

pid	Process
2492	WindowsServices.exe

Loads dropped DLL 1 IoCs

pid	Process
2360	a806f7211ce225fce8c1527a0bdbeec0a195b3827475af2cd3cb08aa648ebaaa.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-1-5-21-2039016743-699959520-214465309-1000\Software\Microsoft\Windows\CurrentVersion\Run\266d34e804b5bdc8c81bfaefe4d0b785 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\WindowsServices.exe\" .."	WindowsServices.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\266d34e804b5bdc8c81bfaefe4d0b785 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\WindowsServices.exe\" .."	WindowsServices.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	a806f7211ce225fce8c1527a0bdbeec0a195b3827475af2cd3cb08aa648ebaaa.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	WindowsServices.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

Suspicious use of AdjustPrivilegeToken 27 IoCs

description	pid	Process
Token: SeDebugPrivilege	2492	WindowsServices.exe
Token: 33	2492	WindowsServices.exe
Token: SeIncBasePriorityPrivilege	2492	WindowsServices.exe
Token: 33	2492	WindowsServices.exe
Token: SeIncBasePriorityPrivilege	2492	WindowsServices.exe
Token: 33	2492	WindowsServices.exe
Token: SeIncBasePriorityPrivilege	2492	WindowsServices.exe
Token: 33	2492	WindowsServices.exe
Token: SeIncBasePriorityPrivilege	2492	WindowsServices.exe
Token: 33	2492	WindowsServices.exe
Token: SeIncBasePriorityPrivilege	2492	WindowsServices.exe
Token: 33	2492	WindowsServices.exe
Token: SeIncBasePriorityPrivilege	2492	WindowsServices.exe
Token: 33	2492	WindowsServices.exe
Token: SeIncBasePriorityPrivilege	2492	WindowsServices.exe
Token: 33	2492	WindowsServices.exe
Token: SeIncBasePriorityPrivilege	2492	WindowsServices.exe
Token: 33	2492	WindowsServices.exe
Token: SeIncBasePriorityPrivilege	2492	WindowsServices.exe
Token: 33	2492	WindowsServices.exe
Token: SeIncBasePriorityPrivilege	2492	WindowsServices.exe
Token: 33	2492	WindowsServices.exe
Token: SeIncBasePriorityPrivilege	2492	WindowsServices.exe
Token: 33	2492	WindowsServices.exe
Token: SeIncBasePriorityPrivilege	2492	WindowsServices.exe
Token: 33	2492	WindowsServices.exe
Token: SeIncBasePriorityPrivilege	2492	WindowsServices.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2360 wrote to memory of 2492	2360	a806f7211ce225fce8c1527a0bdbeec0a195b3827475af2cd3cb08aa648ebaaa.exe	30
PID 2360 wrote to memory of 2492	2360	a806f7211ce225fce8c1527a0bdbeec0a195b3827475af2cd3cb08aa648ebaaa.exe	30
PID 2360 wrote to memory of 2492	2360	a806f7211ce225fce8c1527a0bdbeec0a195b3827475af2cd3cb08aa648ebaaa.exe	30
PID 2360 wrote to memory of 2492	2360	a806f7211ce225fce8c1527a0bdbeec0a195b3827475af2cd3cb08aa648ebaaa.exe	30
PID 2492 wrote to memory of 2368	2492	WindowsServices.exe	32
PID 2492 wrote to memory of 2368	2492	WindowsServices.exe	32
PID 2492 wrote to memory of 2368	2492	WindowsServices.exe	32
PID 2492 wrote to memory of 2368	2492	WindowsServices.exe	32

C:\Users\Admin\AppData\Local\Temp\a806f7211ce225fce8c1527a0bdbeec0a195b3827475af2cd3cb08aa648ebaaa.exe
"C:\Users\Admin\AppData\Local\Temp\a806f7211ce225fce8c1527a0bdbeec0a195b3827475af2cd3cb08aa648ebaaa.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2360
- C:\Users\Admin\AppData\Local\Temp\WindowsServices.exe
  "C:\Users\Admin\AppData\Local\Temp\WindowsServices.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:2492
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\WindowsServices.exe" "WindowsServices.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    - System Location Discovery: System Language Discovery
    PID:2368

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\WindowsServices.exe

Filesize
31KB

MD5
a476d8182cef5f482a38e886023bb8df

SHA1
9ef3984819f6696967d36e04ccb6469bef090745

SHA256
a806f7211ce225fce8c1527a0bdbeec0a195b3827475af2cd3cb08aa648ebaaa

SHA512
bb9944af76d5a4334e941a294bd0934108cfae6e83a4b3ec0cd92da2f059ae5268d930c49781a1996912c8b22ad176344bffa1ecb9a2dd302b8e4a51b46bea44

Download Submit
memory/2360-0-0x0000000074EC1000-0x0000000074EC2000-memory.dmp

Filesize
4KB

Download
memory/2360-1-0x0000000074EC0000-0x000000007546B000-memory.dmp

Filesize
5.7MB

Download
memory/2360-2-0x0000000074EC0000-0x000000007546B000-memory.dmp

Filesize
5.7MB

Download
memory/2360-12-0x0000000074EC0000-0x000000007546B000-memory.dmp

Filesize
5.7MB

Download
memory/2492-10-0x0000000074EC0000-0x000000007546B000-memory.dmp

Filesize
5.7MB

Download
memory/2492-11-0x0000000074EC0000-0x000000007546B000-memory.dmp

Filesize
5.7MB

Download
memory/2492-14-0x0000000074EC0000-0x000000007546B000-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