njrat | fceda118c3aef32d1d7ba4682b75cd9b81423544b820f02acbb6e99f10eb5813

General

Target

assasasa.exe
Size

287KB
MD5

11ea1c7e0deea44c82127cd46f47a074
SHA1

005849c2f425a844b23c27a9079347e037e588fd
SHA256

fceda118c3aef32d1d7ba4682b75cd9b81423544b820f02acbb6e99f10eb5813
SHA512

5296be8822283f6ffc1c6168b1c2d85907b24f6e1127c77125cc522744c5249a77c45715f5e16b914e9bea2580d0e5a3a3e613ddaa2532713e9a66fbd93905e4
SSDEEP

3072:SC8w0v2QAsSdADRq6ty71wtYM77ldY7AXTp2kA:guwH77Ppj0kA

Score

10^/10

njrat hacked discovery evasion persistence privilege_escalation trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

HacKed

C2

192.168.0.48:7777

Mutex

b351ae25e7d6d74143f9d5d9cfdc57c2

Attributes

reg_key
b351ae25e7d6d74143f9d5d9cfdc57c2
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

Processes:

netsh.exe

pid process

2732 netsh.exe

pid	process
2732	netsh.exe

Drops startup file 2 IoCs

Processes:

Chrome.exe

description	ioc	process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\b351ae25e7d6d74143f9d5d9cfdc57c2.exe	Chrome.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\b351ae25e7d6d74143f9d5d9cfdc57c2.exe	Chrome.exe

Executes dropped EXE 1 IoCs

Processes:

Chrome.exe

pid process

2212 Chrome.exe
Loads dropped DLL 1 IoCs

Processes:

assasasa.exe

pid process

2060 assasasa.exe

pid	process
2212	Chrome.exe

pid	process
2060	assasasa.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

Chrome.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Windows\CurrentVersion\Run\b351ae25e7d6d74143f9d5d9cfdc57c2 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\Chrome.exe\" .."	Chrome.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\b351ae25e7d6d74143f9d5d9cfdc57c2 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\Chrome.exe\" .."	Chrome.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

Processes:

netsh.exe

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

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

Processes:

Chrome.exenetsh.exeassasasa.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Chrome.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	assasasa.exe

Suspicious use of AdjustPrivilegeToken 35 IoCs

Processes:

Chrome.exe

description	pid	process
Token: SeDebugPrivilege	2212	Chrome.exe
Token: 33	2212	Chrome.exe
Token: SeIncBasePriorityPrivilege	2212	Chrome.exe
Token: 33	2212	Chrome.exe
Token: SeIncBasePriorityPrivilege	2212	Chrome.exe
Token: 33	2212	Chrome.exe
Token: SeIncBasePriorityPrivilege	2212	Chrome.exe
Token: 33	2212	Chrome.exe
Token: SeIncBasePriorityPrivilege	2212	Chrome.exe
Token: 33	2212	Chrome.exe
Token: SeIncBasePriorityPrivilege	2212	Chrome.exe
Token: 33	2212	Chrome.exe
Token: SeIncBasePriorityPrivilege	2212	Chrome.exe
Token: 33	2212	Chrome.exe
Token: SeIncBasePriorityPrivilege	2212	Chrome.exe
Token: 33	2212	Chrome.exe
Token: SeIncBasePriorityPrivilege	2212	Chrome.exe
Token: 33	2212	Chrome.exe
Token: SeIncBasePriorityPrivilege	2212	Chrome.exe
Token: 33	2212	Chrome.exe
Token: SeIncBasePriorityPrivilege	2212	Chrome.exe
Token: 33	2212	Chrome.exe
Token: SeIncBasePriorityPrivilege	2212	Chrome.exe
Token: 33	2212	Chrome.exe
Token: SeIncBasePriorityPrivilege	2212	Chrome.exe
Token: 33	2212	Chrome.exe
Token: SeIncBasePriorityPrivilege	2212	Chrome.exe
Token: 33	2212	Chrome.exe
Token: SeIncBasePriorityPrivilege	2212	Chrome.exe
Token: 33	2212	Chrome.exe
Token: SeIncBasePriorityPrivilege	2212	Chrome.exe
Token: 33	2212	Chrome.exe
Token: SeIncBasePriorityPrivilege	2212	Chrome.exe
Token: 33	2212	Chrome.exe
Token: SeIncBasePriorityPrivilege	2212	Chrome.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

assasasa.exeChrome.exe

description	pid	process	target process
PID 2060 wrote to memory of 2212	2060	assasasa.exe	Chrome.exe
PID 2060 wrote to memory of 2212	2060	assasasa.exe	Chrome.exe
PID 2060 wrote to memory of 2212	2060	assasasa.exe	Chrome.exe
PID 2060 wrote to memory of 2212	2060	assasasa.exe	Chrome.exe
PID 2212 wrote to memory of 2732	2212	Chrome.exe	netsh.exe
PID 2212 wrote to memory of 2732	2212	Chrome.exe	netsh.exe
PID 2212 wrote to memory of 2732	2212	Chrome.exe	netsh.exe
PID 2212 wrote to memory of 2732	2212	Chrome.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\assasasa.exe
"C:\Users\Admin\AppData\Local\Temp\assasasa.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2060
- C:\Users\Admin\AppData\Local\Temp\Chrome.exe
  "C:\Users\Admin\AppData\Local\Temp\Chrome.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:2212
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\Chrome.exe" "Chrome.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    - System Location Discovery: System Language Discovery
    PID:2732

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\Chrome.exe

Filesize
287KB

MD5
11ea1c7e0deea44c82127cd46f47a074

SHA1
005849c2f425a844b23c27a9079347e037e588fd

SHA256
fceda118c3aef32d1d7ba4682b75cd9b81423544b820f02acbb6e99f10eb5813

SHA512
5296be8822283f6ffc1c6168b1c2d85907b24f6e1127c77125cc522744c5249a77c45715f5e16b914e9bea2580d0e5a3a3e613ddaa2532713e9a66fbd93905e4

Download Submit
memory/2060-0-0x0000000074D01000-0x0000000074D02000-memory.dmp

Filesize
4KB

Download
memory/2060-1-0x0000000074D00000-0x00000000752AB000-memory.dmp

Filesize
5.7MB

Download
memory/2060-2-0x0000000074D00000-0x00000000752AB000-memory.dmp

Filesize
5.7MB

Download
memory/2060-11-0x0000000074D00000-0x00000000752AB000-memory.dmp

Filesize
5.7MB

Download
memory/2060-13-0x0000000074D00000-0x00000000752AB000-memory.dmp

Filesize
5.7MB

Download
memory/2212-10-0x0000000074D00000-0x00000000752AB000-memory.dmp

Filesize
5.7MB

Download
memory/2212-12-0x0000000074D00000-0x00000000752AB000-memory.dmp

Filesize
5.7MB

Download
memory/2212-15-0x0000000074D00000-0x00000000752AB000-memory.dmp

Filesize
5.7MB

Download
memory/2212-16-0x0000000074D00000-0x00000000752AB000-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