njrat | 4e92e905f57ebec8e22df1c735211425dbbd2b64c9e77ad2ca774ff1dfbca13f

General

Target

Payloads.js
Size

58KB
MD5

94c08ba8dc8fa3697207c53665c1ddb3
SHA1

1af6156240c60e2b39269e3649b2a30f981e75b9
SHA256

40de3b364abfeae905e92cd564381d46a80c386c6011e37ce95df860abb572eb
SHA512

11e1a9c810ed146a09aa79ee3d500af4a24d1c2432d5e3b62e125738bf0737dcc110c6926224850e5436b6af6a95ce25b4f8b4de4070f1e53d12a0fbc616dedf

Score

10^/10

njrat vjw0rm hacked jfk evasion persistence suricata trojan worm

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

HACKED JFK

C2

103.149.13.61:4545

Mutex

782e4e93b9158d4d448232ed139fc0db

Attributes

reg_key
782e4e93b9158d4d448232ed139fc0db
splitter
|'|'|

Signatures

Vjw0rm
Vjw0rm is a remote access trojan written in JavaScript.
trojan worm vjw0rm
njRAT/Bladabindi
Widely used RAT written in .NET.
trojan njrat
suricata: ET MALWARE Generic njRAT/Bladabindi CnC Activity (ll)
suricata: ET MALWARE Generic njRAT/Bladabindi CnC Activity (ll)
suricata

Blocklisted process makes network request 16 IoCs

Processes:

wscript.exe

flow	pid	process
4	936	wscript.exe
6	936	wscript.exe
8	936	wscript.exe
10	936	wscript.exe
12	936	wscript.exe
13	936	wscript.exe
15	936	wscript.exe
16	936	wscript.exe
17	936	wscript.exe
19	936	wscript.exe
20	936	wscript.exe
21	936	wscript.exe
23	936	wscript.exe
24	936	wscript.exe
25	936	wscript.exe
27	936	wscript.exe

Executes dropped EXE 1 IoCs

Processes:

Server.exe

pid process

1564 Server.exe
Modifies Windows Firewall 1 TTPs 1 IoCs
evasion

Modify Existing Service
T1031

Processes:

netsh.exe

pid process

1868 netsh.exe

pid	process
1564	Server.exe

pid	process
1868	netsh.exe

Drops startup file 4 IoCs

Processes:

wscript.exeServer.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\PoqvcWJwJA.js	wscript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\PoqvcWJwJA.js	wscript.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\782e4e93b9158d4d448232ed139fc0db.exe	Server.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\782e4e93b9158d4d448232ed139fc0db.exe	Server.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

Server.exewscript.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Windows\CurrentVersion\Run\782e4e93b9158d4d448232ed139fc0db = "\"C:\\Users\\Admin\\AppData\\Roaming\\Server.exe\" .."	Server.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\782e4e93b9158d4d448232ed139fc0db = "\"C:\\Users\\Admin\\AppData\\Roaming\\Server.exe\" .."	Server.exe
Key created	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Windows\CurrentVersion\Run	wscript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Windows\CurrentVersion\Run\YVBPFHTJIQ = "\"C:\\Users\\Admin\\AppData\\Roaming\\PoqvcWJwJA.js\""	wscript.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: AddClipboardFormatListener 1 IoCs

Processes:

Server.exe

pid process

1564 Server.exe

pid	process
1564	Server.exe

Suspicious use of AdjustPrivilegeToken 21 IoCs

Processes:

Server.exe

description	pid	process
Token: SeDebugPrivilege	1564	Server.exe
Token: 33	1564	Server.exe
Token: SeIncBasePriorityPrivilege	1564	Server.exe
Token: 33	1564	Server.exe
Token: SeIncBasePriorityPrivilege	1564	Server.exe
Token: 33	1564	Server.exe
Token: SeIncBasePriorityPrivilege	1564	Server.exe
Token: 33	1564	Server.exe
Token: SeIncBasePriorityPrivilege	1564	Server.exe
Token: 33	1564	Server.exe
Token: SeIncBasePriorityPrivilege	1564	Server.exe
Token: 33	1564	Server.exe
Token: SeIncBasePriorityPrivilege	1564	Server.exe
Token: 33	1564	Server.exe
Token: SeIncBasePriorityPrivilege	1564	Server.exe
Token: 33	1564	Server.exe
Token: SeIncBasePriorityPrivilege	1564	Server.exe
Token: 33	1564	Server.exe
Token: SeIncBasePriorityPrivilege	1564	Server.exe
Token: 33	1564	Server.exe
Token: SeIncBasePriorityPrivilege	1564	Server.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

wscript.exeServer.exe

description	pid	process	target process
PID 824 wrote to memory of 936	824	wscript.exe	wscript.exe
PID 824 wrote to memory of 936	824	wscript.exe	wscript.exe
PID 824 wrote to memory of 936	824	wscript.exe	wscript.exe
PID 824 wrote to memory of 1564	824	wscript.exe	Server.exe
PID 824 wrote to memory of 1564	824	wscript.exe	Server.exe
PID 824 wrote to memory of 1564	824	wscript.exe	Server.exe
PID 1564 wrote to memory of 1868	1564	Server.exe	netsh.exe
PID 1564 wrote to memory of 1868	1564	Server.exe	netsh.exe
PID 1564 wrote to memory of 1868	1564	Server.exe	netsh.exe

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\Payloads.js
1⤵
- Suspicious use of WriteProcessMemory
PID:824
- C:\Windows\System32\wscript.exe
  "C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\PoqvcWJwJA.js"
  2⤵
  - Blocklisted process makes network request
  - Drops startup file
  - Adds Run key to start application
  PID:936
- C:\Users\Admin\AppData\Roaming\Server.exe
  "C:\Users\Admin\AppData\Roaming\Server.exe"
  2⤵
  - Executes dropped EXE
  - Drops startup file
  - Adds Run key to start application
  - Suspicious behavior: AddClipboardFormatListener
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1564
- - C:\Windows\system32\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\Server.exe" "Server.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    PID:1868

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

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Downloads

C:\Users\Admin\AppData\Roaming\PoqvcWJwJA.js

Filesize
5KB

MD5
38b9e490740629a6dd24eec991ddbd10

SHA1
dbf4d6c461b7f74a30533834d13b02da01e2e42f

SHA256
f17073bfd898f4b6442198f04be36ab8b821b7771b2e152213dba0b53571177c

SHA512
211d3a4cc32be4f6f38aa37cb9e1c3ed5cc18b8f43e8face02656e0e60c6ab666fbaba5dfec2b294d986f49fa9580822d056a6565d1a0aaa1ae5a415216578c8

Download Submit
C:\Users\Admin\AppData\Roaming\Server.exe

Filesize
25KB

MD5
7398714aa7e951484c0230bd1919a4d7

SHA1
ba27dc586f7de6d5bc21e54a8ba7b02c980b23ac

SHA256
d6355ea09274149b47d0fab0edc18d2627a1866557ac3a4cce6f4f15b586b9c2

SHA512
391249bdee93f2d2bea6c2c46f791d9533de73c79804a11ac18959fbf3eaf87483988c4fd1310187bf6a8afe3757c302682025b6295380ea0dc6b383693719cf

Download Submit
C:\Users\Admin\AppData\Roaming\Server.exe

Filesize
25KB

MD5
7398714aa7e951484c0230bd1919a4d7

SHA1
ba27dc586f7de6d5bc21e54a8ba7b02c980b23ac

SHA256
d6355ea09274149b47d0fab0edc18d2627a1866557ac3a4cce6f4f15b586b9c2

SHA512
391249bdee93f2d2bea6c2c46f791d9533de73c79804a11ac18959fbf3eaf87483988c4fd1310187bf6a8afe3757c302682025b6295380ea0dc6b383693719cf

Download Submit
memory/824-54-0x000007FEFC4B1000-0x000007FEFC4B3000-memory.dmp

Filesize
8KB

Download
memory/936-55-0x0000000000000000-mapping.dmp

Download
memory/1564-57-0x0000000000000000-mapping.dmp

Download
memory/1564-61-0x00000000010C0000-0x00000000010CC000-memory.dmp

Filesize
48KB

Download
memory/1868-63-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads