njrat | 43529b18411035b51d0db98c0488c8fe54649089d2c3ba7aaa9e4a66eb16d10b

Analysis

max time kernel
152s
max time network
131s
platform
windows7_x64
resource
win7-20230831-en
resource tags

arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
submitted
14/10/2023, 17:56

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General

Target

NEAS.6063a8a6bae6f10420f4d105f9fa01d0.exe
Size

447KB
MD5

6063a8a6bae6f10420f4d105f9fa01d0
SHA1

1ffad853da35e7f154db4b3bc7de283a35ccff82
SHA256

43529b18411035b51d0db98c0488c8fe54649089d2c3ba7aaa9e4a66eb16d10b
SHA512

1c28b49b34af18a8467f27c129fa5e22c11bae6273beb958a5767b4bf5b617561ef4e6cceeb2960e282c0fcedd563443ae6ac46cefab7bdcf8db35423bb7f071
SSDEEP

12288:iOUj1/aegz3K1cf569fotFHeq8DrGKUCJUiWw:LUZaegK1cw2+q8mKUCi2

Score

10^/10

njrat hack evasion persistence trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

hack

medalwaely.no-ip.biz:1177

Mutex

09b4965ef3d07401b926a3a4b3383a3f

Attributes

reg_key
09b4965ef3d07401b926a3a4b3383a3f
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
2352	netsh.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\09b4965ef3d07401b926a3a4b3383a3f.exe	med.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\09b4965ef3d07401b926a3a4b3383a3f.exe	med.exe

Executes dropped EXE 2 IoCs

pid	Process
2180	sara.exe
2544	med.exe

Loads dropped DLL 5 IoCs

pid	Process
2700	NEAS.6063a8a6bae6f10420f4d105f9fa01d0.exe
2700	NEAS.6063a8a6bae6f10420f4d105f9fa01d0.exe
2700	NEAS.6063a8a6bae6f10420f4d105f9fa01d0.exe
2700	NEAS.6063a8a6bae6f10420f4d105f9fa01d0.exe
2700	NEAS.6063a8a6bae6f10420f4d105f9fa01d0.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-1-5-21-3185155662-718608226-894467740-1000\Software\Microsoft\Windows\CurrentVersion\Run\09b4965ef3d07401b926a3a4b3383a3f = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\med.exe\" .."	med.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\09b4965ef3d07401b926a3a4b3383a3f = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\med.exe\" .."	med.exe

Drops file in System32 directory 5 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\__tmp_rar_sfx_access_check_259440083	NEAS.6063a8a6bae6f10420f4d105f9fa01d0.exe
File created	C:\Windows\SysWOW64\sara.exe	NEAS.6063a8a6bae6f10420f4d105f9fa01d0.exe
File opened for modification	C:\Windows\SysWOW64\sara.exe	NEAS.6063a8a6bae6f10420f4d105f9fa01d0.exe
File created	C:\Windows\SysWOW64\8Ns28943.ico	NEAS.6063a8a6bae6f10420f4d105f9fa01d0.exe
File opened for modification	C:\Windows\SysWOW64\8Ns28943.ico	NEAS.6063a8a6bae6f10420f4d105f9fa01d0.exe

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

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 29 IoCs

description	pid	Process
Token: SeDebugPrivilege	2544	med.exe
Token: 33	2544	med.exe
Token: SeIncBasePriorityPrivilege	2544	med.exe
Token: 33	2544	med.exe
Token: SeIncBasePriorityPrivilege	2544	med.exe
Token: 33	2544	med.exe
Token: SeIncBasePriorityPrivilege	2544	med.exe
Token: 33	2544	med.exe
Token: SeIncBasePriorityPrivilege	2544	med.exe
Token: 33	2544	med.exe
Token: SeIncBasePriorityPrivilege	2544	med.exe
Token: 33	2544	med.exe
Token: SeIncBasePriorityPrivilege	2544	med.exe
Token: 33	2544	med.exe
Token: SeIncBasePriorityPrivilege	2544	med.exe
Token: 33	2544	med.exe
Token: SeIncBasePriorityPrivilege	2544	med.exe
Token: 33	2544	med.exe
Token: SeIncBasePriorityPrivilege	2544	med.exe
Token: 33	2544	med.exe
Token: SeIncBasePriorityPrivilege	2544	med.exe
Token: 33	2544	med.exe
Token: SeIncBasePriorityPrivilege	2544	med.exe
Token: 33	2544	med.exe
Token: SeIncBasePriorityPrivilege	2544	med.exe
Token: 33	2544	med.exe
Token: SeIncBasePriorityPrivilege	2544	med.exe
Token: 33	2544	med.exe
Token: SeIncBasePriorityPrivilege	2544	med.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 2700 wrote to memory of 2180	2700	NEAS.6063a8a6bae6f10420f4d105f9fa01d0.exe	28
PID 2700 wrote to memory of 2180	2700	NEAS.6063a8a6bae6f10420f4d105f9fa01d0.exe	28
PID 2700 wrote to memory of 2180	2700	NEAS.6063a8a6bae6f10420f4d105f9fa01d0.exe	28
PID 2700 wrote to memory of 2180	2700	NEAS.6063a8a6bae6f10420f4d105f9fa01d0.exe	28
PID 2180 wrote to memory of 2544	2180	sara.exe	31
PID 2180 wrote to memory of 2544	2180	sara.exe	31
PID 2180 wrote to memory of 2544	2180	sara.exe	31
PID 2544 wrote to memory of 2352	2544	med.exe	32
PID 2544 wrote to memory of 2352	2544	med.exe	32
PID 2544 wrote to memory of 2352	2544	med.exe	32

C:\Users\Admin\AppData\Local\Temp\NEAS.6063a8a6bae6f10420f4d105f9fa01d0.exe
"C:\Users\Admin\AppData\Local\Temp\NEAS.6063a8a6bae6f10420f4d105f9fa01d0.exe"
1⤵
- Loads dropped DLL
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
PID:2700
- C:\Windows\SysWOW64\sara.exe
  "C:\Windows\System32\sara.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of WriteProcessMemory
  PID:2180
- - C:\Users\Admin\AppData\Local\Temp\med.exe
    "C:\Users\Admin\AppData\Local\Temp\med.exe"
    3⤵
    - Drops startup file
    - Executes dropped EXE
    - Adds Run key to start application
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:2544
  - - C:\Windows\System32\netsh.exe
      netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\med.exe" "med.exe" ENABLE
      4⤵
      Modifies Windows Firewall
      PID:2352

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

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

Filesize
44KB

MD5
28a7127de2a0727d5554e232fde3ccde

SHA1
9d61a04df2a0f484ff6e4c7a22791a3f8eaa5991

SHA256
97a077f2d831ba259287f0acd5b138580320a35e1a030631af57968da424f9f6

SHA512
b9bcab64e1836aaeaabd261326b02adfa6b025418016ba436f03bbcb9d648b00d89aa3481e95d5b2ab39635ddbcd41289ae33cc1d83c599a90c9b811f716824d

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

Filesize
44KB

MD5
28a7127de2a0727d5554e232fde3ccde

SHA1
9d61a04df2a0f484ff6e4c7a22791a3f8eaa5991

SHA256
97a077f2d831ba259287f0acd5b138580320a35e1a030631af57968da424f9f6

SHA512
b9bcab64e1836aaeaabd261326b02adfa6b025418016ba436f03bbcb9d648b00d89aa3481e95d5b2ab39635ddbcd41289ae33cc1d83c599a90c9b811f716824d

Download Submit
C:\Windows\SysWOW64\sara.exe

Filesize
44KB

MD5
28a7127de2a0727d5554e232fde3ccde

SHA1
9d61a04df2a0f484ff6e4c7a22791a3f8eaa5991

SHA256
97a077f2d831ba259287f0acd5b138580320a35e1a030631af57968da424f9f6

SHA512
b9bcab64e1836aaeaabd261326b02adfa6b025418016ba436f03bbcb9d648b00d89aa3481e95d5b2ab39635ddbcd41289ae33cc1d83c599a90c9b811f716824d

Download Submit
C:\Windows\SysWOW64\sara.exe

Filesize
44KB

MD5
28a7127de2a0727d5554e232fde3ccde

SHA1
9d61a04df2a0f484ff6e4c7a22791a3f8eaa5991

SHA256
97a077f2d831ba259287f0acd5b138580320a35e1a030631af57968da424f9f6

SHA512
b9bcab64e1836aaeaabd261326b02adfa6b025418016ba436f03bbcb9d648b00d89aa3481e95d5b2ab39635ddbcd41289ae33cc1d83c599a90c9b811f716824d

Download Submit
C:\Windows\SysWOW64\sara.exe

Filesize
44KB

MD5
28a7127de2a0727d5554e232fde3ccde

SHA1
9d61a04df2a0f484ff6e4c7a22791a3f8eaa5991

SHA256
97a077f2d831ba259287f0acd5b138580320a35e1a030631af57968da424f9f6

SHA512
b9bcab64e1836aaeaabd261326b02adfa6b025418016ba436f03bbcb9d648b00d89aa3481e95d5b2ab39635ddbcd41289ae33cc1d83c599a90c9b811f716824d

Download Submit
\Windows\SysWOW64\sara.exe

Filesize
44KB

MD5
28a7127de2a0727d5554e232fde3ccde

SHA1
9d61a04df2a0f484ff6e4c7a22791a3f8eaa5991

SHA256
97a077f2d831ba259287f0acd5b138580320a35e1a030631af57968da424f9f6

SHA512
b9bcab64e1836aaeaabd261326b02adfa6b025418016ba436f03bbcb9d648b00d89aa3481e95d5b2ab39635ddbcd41289ae33cc1d83c599a90c9b811f716824d

Download Submit
\Windows\SysWOW64\sara.exe

Filesize
44KB

MD5
28a7127de2a0727d5554e232fde3ccde

SHA1
9d61a04df2a0f484ff6e4c7a22791a3f8eaa5991

SHA256
97a077f2d831ba259287f0acd5b138580320a35e1a030631af57968da424f9f6

SHA512
b9bcab64e1836aaeaabd261326b02adfa6b025418016ba436f03bbcb9d648b00d89aa3481e95d5b2ab39635ddbcd41289ae33cc1d83c599a90c9b811f716824d

Download Submit
\Windows\SysWOW64\sara.exe

Filesize
44KB

MD5
28a7127de2a0727d5554e232fde3ccde

SHA1
9d61a04df2a0f484ff6e4c7a22791a3f8eaa5991

SHA256
97a077f2d831ba259287f0acd5b138580320a35e1a030631af57968da424f9f6

SHA512
b9bcab64e1836aaeaabd261326b02adfa6b025418016ba436f03bbcb9d648b00d89aa3481e95d5b2ab39635ddbcd41289ae33cc1d83c599a90c9b811f716824d

Download Submit
\Windows\SysWOW64\sara.exe

Filesize
44KB

MD5
28a7127de2a0727d5554e232fde3ccde

SHA1
9d61a04df2a0f484ff6e4c7a22791a3f8eaa5991

SHA256
97a077f2d831ba259287f0acd5b138580320a35e1a030631af57968da424f9f6

SHA512
b9bcab64e1836aaeaabd261326b02adfa6b025418016ba436f03bbcb9d648b00d89aa3481e95d5b2ab39635ddbcd41289ae33cc1d83c599a90c9b811f716824d

Download Submit
\Windows\SysWOW64\sara.exe

Filesize
44KB

MD5
28a7127de2a0727d5554e232fde3ccde

SHA1
9d61a04df2a0f484ff6e4c7a22791a3f8eaa5991

SHA256
97a077f2d831ba259287f0acd5b138580320a35e1a030631af57968da424f9f6

SHA512
b9bcab64e1836aaeaabd261326b02adfa6b025418016ba436f03bbcb9d648b00d89aa3481e95d5b2ab39635ddbcd41289ae33cc1d83c599a90c9b811f716824d

Download Submit
memory/2180-22-0x0000000000340000-0x000000000034A000-memory.dmp

Filesize
40KB

Download
memory/2180-23-0x0000000000260000-0x000000000026C000-memory.dmp

Filesize
48KB

Download
memory/2180-24-0x000007FEF4EA0000-0x000007FEF583D000-memory.dmp

Filesize
9.6MB

Download
memory/2180-21-0x0000000000C80000-0x0000000000D00000-memory.dmp

Filesize
512KB

Download
memory/2180-20-0x000007FEF4EA0000-0x000007FEF583D000-memory.dmp

Filesize
9.6MB

Download
memory/2180-35-0x000007FEF4EA0000-0x000007FEF583D000-memory.dmp

Filesize
9.6MB

Download
memory/2544-32-0x000007FEF4EA0000-0x000007FEF583D000-memory.dmp

Filesize
9.6MB

Download
memory/2544-33-0x000007FEF4EA0000-0x000007FEF583D000-memory.dmp

Filesize
9.6MB

Download
memory/2544-34-0x0000000000A10000-0x0000000000A90000-memory.dmp

Filesize
512KB

Download
memory/2544-36-0x000007FEF4EA0000-0x000007FEF583D000-memory.dmp

Filesize
9.6MB

Download
memory/2544-37-0x0000000000A10000-0x0000000000A90000-memory.dmp

Filesize
512KB

Download
memory/2544-39-0x0000000000A10000-0x0000000000A90000-memory.dmp

Filesize
512KB

Download
memory/2544-40-0x0000000000A10000-0x0000000000A90000-memory.dmp

Filesize
512KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads