njrat | da09dcb834819e8acd123a7fb06e38c8dd584522753003cfa9d501df0a2b3a83

Analysis

max time kernel
150s
max time network
150s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
26/12/2024, 23:46

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General

Target

456-Invoice.js
Size

166KB
MD5

c000b245272ad81b74958689e4b3352e
SHA1

ce74042c88b852c6a5b00186096f0ce42afc38b6
SHA256

f19462db16c63e8c26095f8ee024340649e0b2cb26a9ba9d08691b6d01e4f2be
SHA512

f9b3f811a4be2bee356d9265d15a20a00d41b4a5933d8ab5adcf683ce23cab0ac0b6a7cbdbc97abb509385082aa038d11f1b4f8e502f61e6a42535bbd4df155c
SSDEEP

3072:Z6EsOoG2OGyjn37WIMnhHXmhRZkIQQZ9ophBCvD9hsbVhjv5:PsOotKeIMnimk+EIb5

Score

10^/10

njrat vjw0rm succeed discovery execution persistence trojan worm

Malware Config

Extracted

Family

njrat

Version

0.7.3

Botnet

SUCCEED

194.5.97.156:7654

Mutex

Client.exe

Attributes

reg_key
Client.exe
splitter
0149266241@@@

Signatures

Njrat family
njrat
Vjw0rm
Vjw0rm is a remote access trojan written in JavaScript.
trojan worm vjw0rm
Vjw0rm family
vjw0rm
njRAT/Bladabindi
Widely used RAT written in .NET.
trojan njrat

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\YgrKtkfSUZ.js	wscript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\YgrKtkfSUZ.js	wscript.exe

Executes dropped EXE 1 IoCs

pid	Process
2668	New Client.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Windows\CurrentVersion\Run\SEJOKAOI5S = "\"C:\\Users\\Admin\\AppData\\Roaming\\YgrKtkfSUZ.js\""	wscript.exe

Command and Scripting Interpreter: JavaScript 1 TTPs
execution

JavaScript
T1059.007
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

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	New Client.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
2760	schtasks.exe

Suspicious use of AdjustPrivilegeToken 37 IoCs

description	pid	Process
Token: SeDebugPrivilege	2668	New Client.exe
Token: 33	2668	New Client.exe
Token: SeIncBasePriorityPrivilege	2668	New Client.exe
Token: 33	2668	New Client.exe
Token: SeIncBasePriorityPrivilege	2668	New Client.exe
Token: 33	2668	New Client.exe
Token: SeIncBasePriorityPrivilege	2668	New Client.exe
Token: 33	2668	New Client.exe
Token: SeIncBasePriorityPrivilege	2668	New Client.exe
Token: 33	2668	New Client.exe
Token: SeIncBasePriorityPrivilege	2668	New Client.exe
Token: 33	2668	New Client.exe
Token: SeIncBasePriorityPrivilege	2668	New Client.exe
Token: 33	2668	New Client.exe
Token: SeIncBasePriorityPrivilege	2668	New Client.exe
Token: 33	2668	New Client.exe
Token: SeIncBasePriorityPrivilege	2668	New Client.exe
Token: 33	2668	New Client.exe
Token: SeIncBasePriorityPrivilege	2668	New Client.exe
Token: 33	2668	New Client.exe
Token: SeIncBasePriorityPrivilege	2668	New Client.exe
Token: 33	2668	New Client.exe
Token: SeIncBasePriorityPrivilege	2668	New Client.exe
Token: 33	2668	New Client.exe
Token: SeIncBasePriorityPrivilege	2668	New Client.exe
Token: 33	2668	New Client.exe
Token: SeIncBasePriorityPrivilege	2668	New Client.exe
Token: 33	2668	New Client.exe
Token: SeIncBasePriorityPrivilege	2668	New Client.exe
Token: 33	2668	New Client.exe
Token: SeIncBasePriorityPrivilege	2668	New Client.exe
Token: 33	2668	New Client.exe
Token: SeIncBasePriorityPrivilege	2668	New Client.exe
Token: 33	2668	New Client.exe
Token: SeIncBasePriorityPrivilege	2668	New Client.exe
Token: 33	2668	New Client.exe
Token: SeIncBasePriorityPrivilege	2668	New Client.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 1048 wrote to memory of 1676	1048	wscript.exe	28
PID 1048 wrote to memory of 1676	1048	wscript.exe	28
PID 1048 wrote to memory of 1676	1048	wscript.exe	28
PID 1048 wrote to memory of 2668	1048	wscript.exe	29
PID 1048 wrote to memory of 2668	1048	wscript.exe	29
PID 1048 wrote to memory of 2668	1048	wscript.exe	29
PID 1048 wrote to memory of 2668	1048	wscript.exe	29
PID 2668 wrote to memory of 2772	2668	New Client.exe	31
PID 2668 wrote to memory of 2772	2668	New Client.exe	31
PID 2668 wrote to memory of 2772	2668	New Client.exe	31
PID 2668 wrote to memory of 2772	2668	New Client.exe	31
PID 2668 wrote to memory of 2760	2668	New Client.exe	33
PID 2668 wrote to memory of 2760	2668	New Client.exe	33
PID 2668 wrote to memory of 2760	2668	New Client.exe	33
PID 2668 wrote to memory of 2760	2668	New Client.exe	33

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\456-Invoice.js
1⤵
- Suspicious use of WriteProcessMemory
PID:1048
- C:\Windows\System32\wscript.exe
  "C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\YgrKtkfSUZ.js"
  2⤵
  - Drops startup file
  - Adds Run key to start application
  PID:1676
- C:\Users\Admin\AppData\Local\Temp\New Client.exe
  "C:\Users\Admin\AppData\Local\Temp\New Client.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2668
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /Delete /tn NYAN /F
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2772
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /tn NYAN /tr "C:\Users\Admin\AppData\Local\Temp\New Client.exe" /sc minute /mo 1
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:2760

C:\Windows\system32\taskeng.exe
taskeng.exe {85AFC9E2-2A74-4809-A729-B0C32218CB3A} S-1-5-21-3290804112-2823094203-3137964600-1000:VORHPBAB\Admin:Interactive:[1]
1⤵
PID:2016

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

JavaScript

T1059.007

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\New Client.exe

Filesize
78KB

MD5
4c1c9fdf28215ae2f0f681349b66bbff

SHA1
8ab23d0ee7a361c8f29622fa9ba05f6644e24e9a

SHA256
50842fb63d2308152a3d6c25bf5c45b2a71906193e299975401e8cc5189abd7a

SHA512
f0415187e7f7dc15546ea4bc8e6c53281aa407df064a2d73e0360e796caf807430d7ab565ba842e8d1c58c1bc35eefffcd868042c65357906a625b92064e96c5

Download Submit
C:\Users\Admin\AppData\Roaming\YgrKtkfSUZ.js

Filesize
10KB

MD5
4e1188211bc0a1f728e5a97cf47a7105

SHA1
740914054d0824fbacf494855eb9121355a49740

SHA256
ada3ac15b6fd893f1f8b1a4ad1f6d4cbc86c566c0d5a639c4dda15f4727f2cee

SHA512
b37d9c26c44b45e89a4732439480bf6d09e292fb85ef054a4a591cb7228eeef0f8595aeaf12824771c033297ea218996d6e4c9006972c15a58d02b89365b2a14

Download Submit
memory/2668-8-0x0000000074421000-0x0000000074422000-memory.dmp

Filesize
4KB

Download
memory/2668-10-0x0000000074420000-0x00000000749CB000-memory.dmp

Filesize
5.7MB

Download
memory/2668-11-0x0000000074420000-0x00000000749CB000-memory.dmp

Filesize
5.7MB

Download
memory/2668-12-0x0000000074420000-0x00000000749CB000-memory.dmp

Filesize
5.7MB

Download
memory/2668-13-0x0000000074420000-0x00000000749CB000-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