njrat | 5fc26c8d1ce28ed2277905a966ec30e9f157e14cb19fed06deaeac5500add460

Analysis

max time kernel
123s
max time network
148s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
29/12/2023, 08:31

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General

Target

2eb8399541a38d7411a8da9ad54603f5.exe
Size

93KB
MD5

2eb8399541a38d7411a8da9ad54603f5
SHA1

35bdd684fe0f9b1b77096e4882d5afb548171f65
SHA256

5fc26c8d1ce28ed2277905a966ec30e9f157e14cb19fed06deaeac5500add460
SHA512

62397820089f1595fa6a994c33bd19ae5b8163496979e7224db945f559100271e0bbbd6107f386bf0d22b44e88aa42f962eb97b527ce75b68542d52541baf07b
SSDEEP

768:ZY3OUnD9O/pBcxYsbae6GIXb9pDX2t98PL0OXLeuXxrjEtCdnl2pi1Rz4Rk3ysGZ:NUxOx6baIa9RZj00ljEwzGi1dDuDdgS

Score

10^/10

njrat hacked evasion trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

HacKed

hakim32.ddns.net:2000

6.tcp.eu.ngrok.io:10298

Mutex

1a33d12f87a2ed3cb967309586bdcce8

Attributes

reg_key
1a33d12f87a2ed3cb967309586bdcce8
splitter
|'|'|

Signatures

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

Modifies Windows Firewall 1 TTPs 1 IoCs

evasion

Windows Service

T1543.003

pid	Process
2780	netsh.exe

Drops startup file 6 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Microsoft Corporation.exe	server.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Microsoft Corporation.exe	server.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\1a33d12f87a2ed3cb967309586bdcce8Windows Update.exe	server.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\1a33d12f87a2ed3cb967309586bdcce8Windows Update.exe	server.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Explower.exe	server.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Explower.exe	server.exe

Executes dropped EXE 1 IoCs

pid	Process
2004	server.exe

Loads dropped DLL 2 IoCs

pid	Process
2872	2eb8399541a38d7411a8da9ad54603f5.exe
2872	2eb8399541a38d7411a8da9ad54603f5.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs

Web Service
T1102

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\Explower.exe	server.exe
File opened for modification	C:\Windows\SysWOW64\Explower.exe	server.exe

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\Explower.exe	server.exe
File opened for modification	C:\Program Files (x86)\Explower.exe	server.exe

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
2004	server.exe
2004	server.exe
2004	server.exe
2004	server.exe
2004	server.exe
2004	server.exe
2004	server.exe
2004	server.exe
2004	server.exe
2004	server.exe
2004	server.exe
2004	server.exe
2004	server.exe
2004	server.exe
2004	server.exe
2004	server.exe
2004	server.exe
2004	server.exe
2004	server.exe
2004	server.exe
2004	server.exe
2004	server.exe
2004	server.exe
2004	server.exe
2004	server.exe
2004	server.exe
2004	server.exe
2004	server.exe
2004	server.exe
2004	server.exe
2004	server.exe
2004	server.exe
2004	server.exe
2004	server.exe
2004	server.exe
2004	server.exe
2004	server.exe
2004	server.exe
2004	server.exe
2004	server.exe
2004	server.exe
2004	server.exe
2004	server.exe
2004	server.exe
2004	server.exe
2004	server.exe
2004	server.exe
2004	server.exe
2004	server.exe
2004	server.exe
2004	server.exe
2004	server.exe
2004	server.exe
2004	server.exe
2004	server.exe
2004	server.exe
2004	server.exe
2004	server.exe
2004	server.exe
2004	server.exe
2004	server.exe
2004	server.exe
2004	server.exe
2004	server.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2004	server.exe

Suspicious use of AdjustPrivilegeToken 31 IoCs

description	pid	Process
Token: SeDebugPrivilege	2004	server.exe
Token: 33	2004	server.exe
Token: SeIncBasePriorityPrivilege	2004	server.exe
Token: 33	2004	server.exe
Token: SeIncBasePriorityPrivilege	2004	server.exe
Token: 33	2004	server.exe
Token: SeIncBasePriorityPrivilege	2004	server.exe
Token: 33	2004	server.exe
Token: SeIncBasePriorityPrivilege	2004	server.exe
Token: 33	2004	server.exe
Token: SeIncBasePriorityPrivilege	2004	server.exe
Token: 33	2004	server.exe
Token: SeIncBasePriorityPrivilege	2004	server.exe
Token: 33	2004	server.exe
Token: SeIncBasePriorityPrivilege	2004	server.exe
Token: 33	2004	server.exe
Token: SeIncBasePriorityPrivilege	2004	server.exe
Token: 33	2004	server.exe
Token: SeIncBasePriorityPrivilege	2004	server.exe
Token: 33	2004	server.exe
Token: SeIncBasePriorityPrivilege	2004	server.exe
Token: 33	2004	server.exe
Token: SeIncBasePriorityPrivilege	2004	server.exe
Token: 33	2004	server.exe
Token: SeIncBasePriorityPrivilege	2004	server.exe
Token: 33	2004	server.exe
Token: SeIncBasePriorityPrivilege	2004	server.exe
Token: 33	2004	server.exe
Token: SeIncBasePriorityPrivilege	2004	server.exe
Token: 33	2004	server.exe
Token: SeIncBasePriorityPrivilege	2004	server.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2872 wrote to memory of 2004	2872	2eb8399541a38d7411a8da9ad54603f5.exe	28
PID 2872 wrote to memory of 2004	2872	2eb8399541a38d7411a8da9ad54603f5.exe	28
PID 2872 wrote to memory of 2004	2872	2eb8399541a38d7411a8da9ad54603f5.exe	28
PID 2872 wrote to memory of 2004	2872	2eb8399541a38d7411a8da9ad54603f5.exe	28
PID 2004 wrote to memory of 2780	2004	server.exe	30
PID 2004 wrote to memory of 2780	2004	server.exe	30
PID 2004 wrote to memory of 2780	2004	server.exe	30
PID 2004 wrote to memory of 2780	2004	server.exe	30

C:\Users\Admin\AppData\Local\Temp\2eb8399541a38d7411a8da9ad54603f5.exe
"C:\Users\Admin\AppData\Local\Temp\2eb8399541a38d7411a8da9ad54603f5.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2872
- C:\Users\Admin\AppData\Local\Temp\server.exe
  "C:\Users\Admin\AppData\Local\Temp\server.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - Drops file in System32 directory
  - Drops file in Program Files directory
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2004
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\server.exe" "server.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    PID:2780

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Create or Modify System Process

T1543

Windows Service

T1543.003

Privilege Escalation

Create or Modify System Process

T1543

Windows Service

T1543.003

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Web Service

T1102

Exfiltration

Impact

Replay Monitor

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Downloads

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

Filesize
93KB

MD5
2eb8399541a38d7411a8da9ad54603f5

SHA1
35bdd684fe0f9b1b77096e4882d5afb548171f65

SHA256
5fc26c8d1ce28ed2277905a966ec30e9f157e14cb19fed06deaeac5500add460

SHA512
62397820089f1595fa6a994c33bd19ae5b8163496979e7224db945f559100271e0bbbd6107f386bf0d22b44e88aa42f962eb97b527ce75b68542d52541baf07b

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

Filesize
92KB

MD5
6a2d0a20d4dbea7b0c04a1eaf97a0511

SHA1
0da9d03e203ad4681673f2c7ed39461c5d9fafa7

SHA256
54dc9ce2a33cea75836662bff663c58d9e0783c274894aece42bc084b7101258

SHA512
b3fd8ccfdeec0d238a2e26ab70fd71a18ec479b1e9b4e26164f0578c506d6e2f5567b8506a08e3bef5dd5d15ea00daeab20100007035291e2a41265d172104bb

Download Submit
memory/2004-16-0x0000000000260000-0x00000000002A0000-memory.dmp

Filesize
256KB

Download
memory/2004-17-0x00000000749B0000-0x0000000074F5B000-memory.dmp

Filesize
5.7MB

Download
memory/2004-15-0x00000000749B0000-0x0000000074F5B000-memory.dmp

Filesize
5.7MB

Download
memory/2004-43-0x0000000000260000-0x00000000002A0000-memory.dmp

Filesize
256KB

Download
memory/2004-42-0x00000000749B0000-0x0000000074F5B000-memory.dmp

Filesize
5.7MB

Download
memory/2872-1-0x0000000000C40000-0x0000000000C80000-memory.dmp

Filesize
256KB

Download
memory/2872-2-0x00000000749B0000-0x0000000074F5B000-memory.dmp

Filesize
5.7MB

Download
memory/2872-0-0x00000000749B0000-0x0000000074F5B000-memory.dmp

Filesize
5.7MB

Download
memory/2872-14-0x00000000749B0000-0x0000000074F5B000-memory.dmp

Filesize
5.7MB

Download