njrat | 4a3c93c33c26152f7f1cef21b7cf9e27efca0e514fc7b419d23f7b64aefb5507

General

Target

4a3c93c33c26152f7f1cef21b7cf9e27efca0e514fc7b419d23f7b64aefb5507.exe
Size

29KB
MD5

81d47137b6e65a165d195653d94b4dd0
SHA1

1ef18f2a7cd19ea0ea9936ae378e848d7b675284
SHA256

4a3c93c33c26152f7f1cef21b7cf9e27efca0e514fc7b419d23f7b64aefb5507
SHA512

95b4d44715a904f340e68da95466f5ab96cb09250ff3ed46a2b891c17b4c083a922e127480d0e8ee56f219bae1fe500d03ffcb70261023452a55bad85e7511ce
SSDEEP

768:/2u75oa4fu124A2FjXeJBKh0p29SgRwm:T75CPoj8KhG29jwm

Score

10^/10

njrat hacked evasion persistence trojan

Malware Config

Extracted

Family

njrat

Version

0.6.4

Botnet

HacKed

C2

maaher1.no-ip.biz:1177

Mutex

5cd8f17f4086744065eb0992a09e05a2

Attributes

reg_key
5cd8f17f4086744065eb0992a09e05a2
splitter
|'|'|

Signatures

njRAT/Bladabindi
Widely used RAT written in .NET.
trojan njrat

Executes dropped EXE 1 IoCs

pid	Process
992	Trojan.exe

Modifies Windows Firewall 1 TTPs 1 IoCs

evasion

Modify Existing Service

T1031

pid	Process
620	netsh.exe

Loads dropped DLL 1 IoCs

pid	Process
1048	4a3c93c33c26152f7f1cef21b7cf9e27efca0e514fc7b419d23f7b64aefb5507.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\5cd8f17f4086744065eb0992a09e05a2 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\Trojan.exe\" .."	Trojan.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\5cd8f17f4086744065eb0992a09e05a2 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\Trojan.exe\" .."	Trojan.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 18 IoCs

pid	Process
992	Trojan.exe
992	Trojan.exe
992	Trojan.exe
992	Trojan.exe
992	Trojan.exe
992	Trojan.exe
992	Trojan.exe
992	Trojan.exe
992	Trojan.exe
992	Trojan.exe
992	Trojan.exe
992	Trojan.exe
992	Trojan.exe
992	Trojan.exe
992	Trojan.exe
992	Trojan.exe
992	Trojan.exe
992	Trojan.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	992	Trojan.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1048 wrote to memory of 992	1048	4a3c93c33c26152f7f1cef21b7cf9e27efca0e514fc7b419d23f7b64aefb5507.exe	27
PID 1048 wrote to memory of 992	1048	4a3c93c33c26152f7f1cef21b7cf9e27efca0e514fc7b419d23f7b64aefb5507.exe	27
PID 1048 wrote to memory of 992	1048	4a3c93c33c26152f7f1cef21b7cf9e27efca0e514fc7b419d23f7b64aefb5507.exe	27
PID 1048 wrote to memory of 992	1048	4a3c93c33c26152f7f1cef21b7cf9e27efca0e514fc7b419d23f7b64aefb5507.exe	27
PID 992 wrote to memory of 620	992	Trojan.exe	28
PID 992 wrote to memory of 620	992	Trojan.exe	28
PID 992 wrote to memory of 620	992	Trojan.exe	28
PID 992 wrote to memory of 620	992	Trojan.exe	28

C:\Users\Admin\AppData\Local\Temp\4a3c93c33c26152f7f1cef21b7cf9e27efca0e514fc7b419d23f7b64aefb5507.exe
"C:\Users\Admin\AppData\Local\Temp\4a3c93c33c26152f7f1cef21b7cf9e27efca0e514fc7b419d23f7b64aefb5507.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1048
- C:\Users\Admin\AppData\Local\Temp\Trojan.exe
  "C:\Users\Admin\AppData\Local\Temp\Trojan.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:992
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\Trojan.exe" "Trojan.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    PID:620

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Modify Existing Service

1

T1031

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\Trojan.exe

Filesize
29KB

MD5
81d47137b6e65a165d195653d94b4dd0

SHA1
1ef18f2a7cd19ea0ea9936ae378e848d7b675284

SHA256
4a3c93c33c26152f7f1cef21b7cf9e27efca0e514fc7b419d23f7b64aefb5507

SHA512
95b4d44715a904f340e68da95466f5ab96cb09250ff3ed46a2b891c17b4c083a922e127480d0e8ee56f219bae1fe500d03ffcb70261023452a55bad85e7511ce

Download Submit
C:\Users\Admin\AppData\Local\Temp\Trojan.exe

Filesize
29KB

MD5
81d47137b6e65a165d195653d94b4dd0

SHA1
1ef18f2a7cd19ea0ea9936ae378e848d7b675284

SHA256
4a3c93c33c26152f7f1cef21b7cf9e27efca0e514fc7b419d23f7b64aefb5507

SHA512
95b4d44715a904f340e68da95466f5ab96cb09250ff3ed46a2b891c17b4c083a922e127480d0e8ee56f219bae1fe500d03ffcb70261023452a55bad85e7511ce

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

Filesize
29KB

MD5
81d47137b6e65a165d195653d94b4dd0

SHA1
1ef18f2a7cd19ea0ea9936ae378e848d7b675284

SHA256
4a3c93c33c26152f7f1cef21b7cf9e27efca0e514fc7b419d23f7b64aefb5507

SHA512
95b4d44715a904f340e68da95466f5ab96cb09250ff3ed46a2b891c17b4c083a922e127480d0e8ee56f219bae1fe500d03ffcb70261023452a55bad85e7511ce

Download Submit
memory/992-63-0x0000000074A00000-0x0000000074FAB000-memory.dmp

Filesize
5.7MB

Download
memory/992-64-0x0000000074A00000-0x0000000074FAB000-memory.dmp

Filesize
5.7MB

Download
memory/1048-54-0x00000000759F1000-0x00000000759F3000-memory.dmp

Filesize
8KB

Download
memory/1048-61-0x0000000074A00000-0x0000000074FAB000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing