njrat | 4f97ad6a594c6d6fc94c5c033d364a66306d6c829d313ae64fb778b07f30174b

Analysis

max time kernel
150s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20220901-en
resource tags

arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
submitted
26-11-2022 00:05

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General

Target

4f97ad6a594c6d6fc94c5c033d364a66306d6c829d313ae64fb778b07f30174b.exe
Size

407KB
MD5

3f6264634cfc717f693ca4087f280abb
SHA1

9815e65a6df52afb3840f58570ec9eccf5f43e3e
SHA256

4f97ad6a594c6d6fc94c5c033d364a66306d6c829d313ae64fb778b07f30174b
SHA512

fe09623b9681b967a781fd604c4fa1f2603fe6bf54be4d1cbbf5c80119cb6cf7d7ab907dae7db5592d939756ccb79e0cafc3cd176822c717a56c8d16340378fb
SSDEEP

6144:npbn2N5umytHm1HwoSZI22bu4jA9qn5JdFYUr1dscT7iFiaFpKdFYUr1d:npbaAmCHm1WID8A5XpGFW

Score

10^/10

njrat vip evasion persistence trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

VIP

europ.no-ip.org:5001

Mutex

3fcdbe3d0200313fb6c01e731bd36058

Attributes

reg_key
3fcdbe3d0200313fb6c01e731bd36058
splitter
|'|'|

Signatures

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "C:\\Users\\Admin\\AppData\\Local\\Temp\\FolderName\\file.exe"	reg.exe

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

Executes dropped EXE 1 IoCs

pid	Process
2408	svhost.exe

Modifies Windows Firewall 1 TTPs 1 IoCs

evasion

Modify Existing Service

T1031

pid	Process
4988	netsh.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation	wscript.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3368 set thread context of 2408	3368	4f97ad6a594c6d6fc94c5c033d364a66306d6c829d313ae64fb778b07f30174b.exe	79

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 5 IoCs

pid	Process
3368	4f97ad6a594c6d6fc94c5c033d364a66306d6c829d313ae64fb778b07f30174b.exe
3368	4f97ad6a594c6d6fc94c5c033d364a66306d6c829d313ae64fb778b07f30174b.exe
3368	4f97ad6a594c6d6fc94c5c033d364a66306d6c829d313ae64fb778b07f30174b.exe
3368	4f97ad6a594c6d6fc94c5c033d364a66306d6c829d313ae64fb778b07f30174b.exe
3368	4f97ad6a594c6d6fc94c5c033d364a66306d6c829d313ae64fb778b07f30174b.exe

Suspicious use of AdjustPrivilegeToken 38 IoCs

description	pid	Process
Token: SeDebugPrivilege	3368	4f97ad6a594c6d6fc94c5c033d364a66306d6c829d313ae64fb778b07f30174b.exe
Token: 33	3368	4f97ad6a594c6d6fc94c5c033d364a66306d6c829d313ae64fb778b07f30174b.exe
Token: SeIncBasePriorityPrivilege	3368	4f97ad6a594c6d6fc94c5c033d364a66306d6c829d313ae64fb778b07f30174b.exe
Token: SeDebugPrivilege	2408	svhost.exe
Token: 33	2408	svhost.exe
Token: SeIncBasePriorityPrivilege	2408	svhost.exe
Token: 33	2408	svhost.exe
Token: SeIncBasePriorityPrivilege	2408	svhost.exe
Token: 33	2408	svhost.exe
Token: SeIncBasePriorityPrivilege	2408	svhost.exe
Token: 33	2408	svhost.exe
Token: SeIncBasePriorityPrivilege	2408	svhost.exe
Token: 33	2408	svhost.exe
Token: SeIncBasePriorityPrivilege	2408	svhost.exe
Token: 33	2408	svhost.exe
Token: SeIncBasePriorityPrivilege	2408	svhost.exe
Token: 33	2408	svhost.exe
Token: SeIncBasePriorityPrivilege	2408	svhost.exe
Token: 33	2408	svhost.exe
Token: SeIncBasePriorityPrivilege	2408	svhost.exe
Token: 33	2408	svhost.exe
Token: SeIncBasePriorityPrivilege	2408	svhost.exe
Token: 33	2408	svhost.exe
Token: SeIncBasePriorityPrivilege	2408	svhost.exe
Token: 33	2408	svhost.exe
Token: SeIncBasePriorityPrivilege	2408	svhost.exe
Token: 33	2408	svhost.exe
Token: SeIncBasePriorityPrivilege	2408	svhost.exe
Token: 33	2408	svhost.exe
Token: SeIncBasePriorityPrivilege	2408	svhost.exe
Token: 33	2408	svhost.exe
Token: SeIncBasePriorityPrivilege	2408	svhost.exe
Token: 33	2408	svhost.exe
Token: SeIncBasePriorityPrivilege	2408	svhost.exe
Token: 33	2408	svhost.exe
Token: SeIncBasePriorityPrivilege	2408	svhost.exe
Token: 33	2408	svhost.exe
Token: SeIncBasePriorityPrivilege	2408	svhost.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 3368 wrote to memory of 536	3368	4f97ad6a594c6d6fc94c5c033d364a66306d6c829d313ae64fb778b07f30174b.exe	77
PID 3368 wrote to memory of 536	3368	4f97ad6a594c6d6fc94c5c033d364a66306d6c829d313ae64fb778b07f30174b.exe	77
PID 3368 wrote to memory of 536	3368	4f97ad6a594c6d6fc94c5c033d364a66306d6c829d313ae64fb778b07f30174b.exe	77
PID 3368 wrote to memory of 2408	3368	4f97ad6a594c6d6fc94c5c033d364a66306d6c829d313ae64fb778b07f30174b.exe	79
PID 3368 wrote to memory of 2408	3368	4f97ad6a594c6d6fc94c5c033d364a66306d6c829d313ae64fb778b07f30174b.exe	79
PID 3368 wrote to memory of 2408	3368	4f97ad6a594c6d6fc94c5c033d364a66306d6c829d313ae64fb778b07f30174b.exe	79
PID 3368 wrote to memory of 2408	3368	4f97ad6a594c6d6fc94c5c033d364a66306d6c829d313ae64fb778b07f30174b.exe	79
PID 3368 wrote to memory of 2408	3368	4f97ad6a594c6d6fc94c5c033d364a66306d6c829d313ae64fb778b07f30174b.exe	79
PID 3368 wrote to memory of 2408	3368	4f97ad6a594c6d6fc94c5c033d364a66306d6c829d313ae64fb778b07f30174b.exe	79
PID 3368 wrote to memory of 2408	3368	4f97ad6a594c6d6fc94c5c033d364a66306d6c829d313ae64fb778b07f30174b.exe	79
PID 3368 wrote to memory of 2408	3368	4f97ad6a594c6d6fc94c5c033d364a66306d6c829d313ae64fb778b07f30174b.exe	79
PID 536 wrote to memory of 440	536	cmd.exe	81
PID 536 wrote to memory of 440	536	cmd.exe	81
PID 536 wrote to memory of 440	536	cmd.exe	81
PID 440 wrote to memory of 1536	440	wscript.exe	82
PID 440 wrote to memory of 1536	440	wscript.exe	82
PID 440 wrote to memory of 1536	440	wscript.exe	82
PID 1536 wrote to memory of 3092	1536	cmd.exe	84
PID 1536 wrote to memory of 3092	1536	cmd.exe	84
PID 1536 wrote to memory of 3092	1536	cmd.exe	84
PID 2408 wrote to memory of 4988	2408	svhost.exe	85
PID 2408 wrote to memory of 4988	2408	svhost.exe	85
PID 2408 wrote to memory of 4988	2408	svhost.exe	85

C:\Users\Admin\AppData\Local\Temp\4f97ad6a594c6d6fc94c5c033d364a66306d6c829d313ae64fb778b07f30174b.exe
"C:\Users\Admin\AppData\Local\Temp\4f97ad6a594c6d6fc94c5c033d364a66306d6c829d313ae64fb778b07f30174b.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3368
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\FolderName\mata.bat
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:536
- - C:\Windows\SysWOW64\wscript.exe
    wscript.exe "C:\Users\Admin\AppData\Local\Temp\FolderName\invs.vbs" "C:\Users\Admin\AppData\Local\Temp\FolderName\mata2.bat"
    3⤵
    - Checks computer location settings
    - Suspicious use of WriteProcessMemory
    PID:440
  - - C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\FolderName\mata2.bat" "
      4⤵
      Suspicious use of WriteProcessMemory
      PID:1536
    - - C:\Windows\SysWOW64\reg.exe
        
        reg add "HKCU\Software\Microsoft\Windows NT\CurrentVersion\Winlogon" /v Shell /t REG_SZ /d "C:\Users\Admin\AppData\Local\Temp\FolderName\file.exe" /f
        5⤵
        Modifies WinLogon for persistence
        
        PID:3092
- C:\Users\Admin\AppData\Local\Temp\svhost.exe
  C:\Users\Admin\AppData\Local\Temp\svhost.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2408
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\svhost.exe" "svhost.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    PID:4988

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Modify Existing Service

T1031

Winlogon Helper DLL

T1004

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\FolderName\file.exe

Filesize
407KB

MD5
3f6264634cfc717f693ca4087f280abb

SHA1
9815e65a6df52afb3840f58570ec9eccf5f43e3e

SHA256
4f97ad6a594c6d6fc94c5c033d364a66306d6c829d313ae64fb778b07f30174b

SHA512
fe09623b9681b967a781fd604c4fa1f2603fe6bf54be4d1cbbf5c80119cb6cf7d7ab907dae7db5592d939756ccb79e0cafc3cd176822c717a56c8d16340378fb

Download Submit
C:\Users\Admin\AppData\Local\Temp\FolderName\invs.vbs

Filesize
78B

MD5
c578d9653b22800c3eb6b6a51219bbb8

SHA1
a97aa251901bbe179a48dbc7a0c1872e163b1f2d

SHA256
20a98a7e6e137bb1b9bd5ef6911a479cb8eac925b80d6db4e70b19f62a40cce2

SHA512
3ae6dc8f02d1a78e1235a0782b632972da5a74ab32287cc41aa672d4fa4a9d34bb5fc50eba07b6915f2e61c402927cd5f6feeb7f7602afa2f64e91efb3b7fc4d

Download Submit
C:\Users\Admin\AppData\Local\Temp\FolderName\mata.bat

Filesize
70B

MD5
23f72401196919748c14cb64c1d55c3b

SHA1
869e3809cb4391e6f5aee5349a871e40a1e1fb22

SHA256
d09c4054568f89c5de2bd9bae9cbcbcb3ef2dda9a9ded0153e29da26dc405d11

SHA512
2ab844717c31c4819d8773d7604dfc831e950ae9e38fe311acf8178d46f39fafb54b448ebb6b9cf5d1edd47ed36eae11d649c1be346b0a35d380dd07101c79f1

Download Submit
C:\Users\Admin\AppData\Local\Temp\FolderName\mata2.bat

Filesize
264B

MD5
3c181f23c4736de97dd0766ae58815a3

SHA1
0014ab88cd3d1fd7980ba6f3b709b987a0dcae7b

SHA256
32bc6b75b0f5dd44e13755112550e42f7f14d19cf98e9c3c57c71b987354ef43

SHA512
d48f0eb74a08e5c74897027620c7d358d0ee35a02a5f398857b96c6ab8c05df64fe3fd0b2a8f2fa3d3aa8ffb9e0c148ee5a867bfc48e0a30242b5b5af341c5fb

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

Filesize
52KB

MD5
a64daca3cfbcd039df3ec29d3eddd001

SHA1
eee8b2573f71e8d5c3ee7e53af3e6772e090d0f3

SHA256
403752009f29381d5e4036b8be94589c89188f9ce8ef5f86959eaaada019ed36

SHA512
b6fe2d0ae3fcd4442579ecf10d498d61e0f042813c8fc4be8019da77d849cfcf0b168507139a1b5697227c272de9091788f8e03cf1ce13d5b5077568cfa6a479

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

Filesize
52KB

MD5
a64daca3cfbcd039df3ec29d3eddd001

SHA1
eee8b2573f71e8d5c3ee7e53af3e6772e090d0f3

SHA256
403752009f29381d5e4036b8be94589c89188f9ce8ef5f86959eaaada019ed36

SHA512
b6fe2d0ae3fcd4442579ecf10d498d61e0f042813c8fc4be8019da77d849cfcf0b168507139a1b5697227c272de9091788f8e03cf1ce13d5b5077568cfa6a479

Download Submit
memory/2408-135-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/2408-141-0x0000000075320000-0x00000000758D1000-memory.dmp

Filesize
5.7MB

Download
memory/2408-148-0x0000000075320000-0x00000000758D1000-memory.dmp

Filesize
5.7MB

Download
memory/3368-132-0x0000000075320000-0x00000000758D1000-memory.dmp

Filesize
5.7MB

Download
memory/3368-146-0x0000000075320000-0x00000000758D1000-memory.dmp

Filesize
5.7MB

Download