njrat | f224e28066ac3cb24754bf423b368d28b720dc6889f86d2ce21df79f33982e5f

Analysis

max time kernel
150s
max time network
156s
platform
windows7_x64
resource
win7-20230831-en
resource tags

arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
submitted
16/10/2023, 18:01

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General

Target

548A4036ED72D3479BA73BB16B540198.exe
Size

1.1MB
MD5

548a4036ed72d3479ba73bb16b540198
SHA1

2f13d78e0a284eee8673aff586582050f72e4f82
SHA256

f224e28066ac3cb24754bf423b368d28b720dc6889f86d2ce21df79f33982e5f
SHA512

97b72f7186233db4038caef8f4714fdcdec6da17d4c195d791381163dcd86f0b23c9b0c4dec39c1f0f2616615a77f53f18987b7faac8947283fe0b3fa97e6a9a
SSDEEP

24576:7gc2ZZ58NY+7pxrdVzZEUbIBd6U1EtuhgrSiDj2ni:7hFNY+7LdHPI91EagOi

Score

10^/10

njrat evasion trojan

Malware Config

Extracted

Family

njrat

hakim32.ddns.net:2000

Signatures

njRAT/Bladabindi
Widely used RAT written in .NET.
trojan njrat
Disables Task Manager via registry modification
evasion

Modifies Windows Firewall 1 TTPs 3 IoCs

evasion

Windows Service

T1543.003

pid	Process
2544	netsh.exe
1712	netsh.exe
2712	netsh.exe

Drops startup file 4 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\beeb0f76ea209c7775b2f9385beb7b67Windows Update.exe	server.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\beeb0f76ea209c7775b2f9385beb7b67Windows Update.exe	server.exe

Executes dropped EXE 1 IoCs

pid	Process
2684	server.exe

Loads dropped DLL 2 IoCs

pid	Process
3004	548A4036ED72D3479BA73BB16B540198.exe
3004	548A4036ED72D3479BA73BB16B540198.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs

Web Service
T1102

Drops autorun.inf file 1 TTPs 4 IoCs

Malware can abuse Windows Autorun to spread further via attached volumes.

Replication Through Removable Media

T1091

description	ioc	Process
File created	C:\autorun.inf	server.exe
File opened for modification	C:\autorun.inf	server.exe
File created	F:\autorun.inf	server.exe
File opened for modification	F:\autorun.inf	server.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 18 IoCs

pid	Process
3004	548A4036ED72D3479BA73BB16B540198.exe
3004	548A4036ED72D3479BA73BB16B540198.exe
3004	548A4036ED72D3479BA73BB16B540198.exe
2684	server.exe
2684	server.exe
2684	server.exe
2684	server.exe
2684	server.exe
2684	server.exe
2684	server.exe
2684	server.exe
2684	server.exe
2684	server.exe
2684	server.exe
2684	server.exe
2684	server.exe
2684	server.exe
2684	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
3004	548A4036ED72D3479BA73BB16B540198.exe
2684	server.exe
2684	server.exe
2684	server.exe
2684	server.exe
2684	server.exe
2684	server.exe
2684	server.exe
2684	server.exe
2684	server.exe
2684	server.exe
2684	server.exe
2684	server.exe
2684	server.exe
2684	server.exe
2684	server.exe
2684	server.exe
2684	server.exe
2684	server.exe
2684	server.exe
2684	server.exe
2684	server.exe
2684	server.exe
2684	server.exe
2684	server.exe
2684	server.exe
2684	server.exe
2684	server.exe
2684	server.exe
2684	server.exe
2684	server.exe
2684	server.exe
2684	server.exe
2684	server.exe
2684	server.exe
2684	server.exe
2684	server.exe
2684	server.exe
2684	server.exe
2684	server.exe
2684	server.exe
2684	server.exe
2684	server.exe
2684	server.exe
2684	server.exe
2684	server.exe
2684	server.exe
2684	server.exe
2684	server.exe
2684	server.exe
2684	server.exe
2684	server.exe
2684	server.exe
2684	server.exe
2684	server.exe
2684	server.exe
2684	server.exe
2684	server.exe
2684	server.exe
2684	server.exe
2684	server.exe
2684	server.exe
2684	server.exe
2684	server.exe

Suspicious behavior: GetForegroundWindowSpam 2 IoCs

pid	Process
3004	548A4036ED72D3479BA73BB16B540198.exe
2684	server.exe

Suspicious use of AdjustPrivilegeToken 29 IoCs

description	pid	Process
Token: SeDebugPrivilege	2684	server.exe
Token: 33	2684	server.exe
Token: SeIncBasePriorityPrivilege	2684	server.exe
Token: 33	2684	server.exe
Token: SeIncBasePriorityPrivilege	2684	server.exe
Token: 33	2684	server.exe
Token: SeIncBasePriorityPrivilege	2684	server.exe
Token: 33	2684	server.exe
Token: SeIncBasePriorityPrivilege	2684	server.exe
Token: 33	2684	server.exe
Token: SeIncBasePriorityPrivilege	2684	server.exe
Token: 33	2684	server.exe
Token: SeIncBasePriorityPrivilege	2684	server.exe
Token: 33	2684	server.exe
Token: SeIncBasePriorityPrivilege	2684	server.exe
Token: 33	2684	server.exe
Token: SeIncBasePriorityPrivilege	2684	server.exe
Token: 33	2684	server.exe
Token: SeIncBasePriorityPrivilege	2684	server.exe
Token: 33	2684	server.exe
Token: SeIncBasePriorityPrivilege	2684	server.exe
Token: 33	2684	server.exe
Token: SeIncBasePriorityPrivilege	2684	server.exe
Token: 33	2684	server.exe
Token: SeIncBasePriorityPrivilege	2684	server.exe
Token: 33	2684	server.exe
Token: SeIncBasePriorityPrivilege	2684	server.exe
Token: 33	2684	server.exe
Token: SeIncBasePriorityPrivilege	2684	server.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
3004	548A4036ED72D3479BA73BB16B540198.exe
2684	server.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 3004 wrote to memory of 2684	3004	548A4036ED72D3479BA73BB16B540198.exe	28
PID 3004 wrote to memory of 2684	3004	548A4036ED72D3479BA73BB16B540198.exe	28
PID 3004 wrote to memory of 2684	3004	548A4036ED72D3479BA73BB16B540198.exe	28
PID 3004 wrote to memory of 2684	3004	548A4036ED72D3479BA73BB16B540198.exe	28
PID 2684 wrote to memory of 2712	2684	server.exe	29
PID 2684 wrote to memory of 2712	2684	server.exe	29
PID 2684 wrote to memory of 2712	2684	server.exe	29
PID 2684 wrote to memory of 2712	2684	server.exe	29
PID 2684 wrote to memory of 1712	2684	server.exe	35
PID 2684 wrote to memory of 1712	2684	server.exe	35
PID 2684 wrote to memory of 1712	2684	server.exe	35
PID 2684 wrote to memory of 1712	2684	server.exe	35
PID 2684 wrote to memory of 2544	2684	server.exe	34
PID 2684 wrote to memory of 2544	2684	server.exe	34
PID 2684 wrote to memory of 2544	2684	server.exe	34
PID 2684 wrote to memory of 2544	2684	server.exe	34

C:\Users\Admin\AppData\Local\Temp\548A4036ED72D3479BA73BB16B540198.exe
"C:\Users\Admin\AppData\Local\Temp\548A4036ED72D3479BA73BB16B540198.exe"
1⤵
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3004
- C:\Users\Admin\AppData\Local\Temp\server.exe
  "C:\Users\Admin\AppData\Local\Temp\server.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - Drops autorun.inf file
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2684
- - 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:2712
- - 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:2544
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall delete allowedprogram "C:\Users\Admin\AppData\Local\Temp\server.exe"
    3⤵
    - Modifies Windows Firewall
    PID:1712

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Replication Through Removable Media

T1091

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

Replication Through Removable Media

T1091

Collection

Command and Control

Web Service

T1102

Exfiltration

Impact

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Downloads

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

Filesize
1.1MB

MD5
548a4036ed72d3479ba73bb16b540198

SHA1
2f13d78e0a284eee8673aff586582050f72e4f82

SHA256
f224e28066ac3cb24754bf423b368d28b720dc6889f86d2ce21df79f33982e5f

SHA512
97b72f7186233db4038caef8f4714fdcdec6da17d4c195d791381163dcd86f0b23c9b0c4dec39c1f0f2616615a77f53f18987b7faac8947283fe0b3fa97e6a9a

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

Filesize
1.1MB

MD5
548a4036ed72d3479ba73bb16b540198

SHA1
2f13d78e0a284eee8673aff586582050f72e4f82

SHA256
f224e28066ac3cb24754bf423b368d28b720dc6889f86d2ce21df79f33982e5f

SHA512
97b72f7186233db4038caef8f4714fdcdec6da17d4c195d791381163dcd86f0b23c9b0c4dec39c1f0f2616615a77f53f18987b7faac8947283fe0b3fa97e6a9a

Download Submit
C:\Users\Admin\AppData\Roaming\app

Filesize
5B

MD5
02b81b0cbe1faaa1fa62d5fc876ab443

SHA1
d473cfe21fb1f188689415b0bdd239688f8fddd9

SHA256
e7e9e2c247bc872bacce77661c78f001a17d70ee3130a9016a5818da9da00cdb

SHA512
592ab5b200d4c560951cb70288dc1b7a562f0cbfaee01ce03076b6934d537b88575c2e1e0fedcc05db95e6c224ca739923e7d74f9165e683f3fbad7bbf641784

Download Submit
\??\c:\users\admin\appdata\local\temp\server.exe

Filesize
1.1MB

MD5
548a4036ed72d3479ba73bb16b540198

SHA1
2f13d78e0a284eee8673aff586582050f72e4f82

SHA256
f224e28066ac3cb24754bf423b368d28b720dc6889f86d2ce21df79f33982e5f

SHA512
97b72f7186233db4038caef8f4714fdcdec6da17d4c195d791381163dcd86f0b23c9b0c4dec39c1f0f2616615a77f53f18987b7faac8947283fe0b3fa97e6a9a

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

Filesize
1.1MB

MD5
548a4036ed72d3479ba73bb16b540198

SHA1
2f13d78e0a284eee8673aff586582050f72e4f82

SHA256
f224e28066ac3cb24754bf423b368d28b720dc6889f86d2ce21df79f33982e5f

SHA512
97b72f7186233db4038caef8f4714fdcdec6da17d4c195d791381163dcd86f0b23c9b0c4dec39c1f0f2616615a77f53f18987b7faac8947283fe0b3fa97e6a9a

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

Filesize
1.1MB

MD5
548a4036ed72d3479ba73bb16b540198

SHA1
2f13d78e0a284eee8673aff586582050f72e4f82

SHA256
f224e28066ac3cb24754bf423b368d28b720dc6889f86d2ce21df79f33982e5f

SHA512
97b72f7186233db4038caef8f4714fdcdec6da17d4c195d791381163dcd86f0b23c9b0c4dec39c1f0f2616615a77f53f18987b7faac8947283fe0b3fa97e6a9a

Download Submit
memory/2684-30-0x0000000001140000-0x00000000014BE000-memory.dmp

Filesize
3.5MB

Download
memory/2684-23-0x0000000002CB0000-0x0000000002CF0000-memory.dmp

Filesize
256KB

Download
memory/2684-24-0x0000000074110000-0x00000000746BB000-memory.dmp

Filesize
5.7MB

Download
memory/2684-41-0x0000000074110000-0x00000000746BB000-memory.dmp

Filesize
5.7MB

Download
memory/2684-45-0x0000000074110000-0x00000000746BB000-memory.dmp

Filesize
5.7MB

Download
memory/2684-22-0x0000000074110000-0x00000000746BB000-memory.dmp

Filesize
5.7MB

Download
memory/2684-19-0x0000000001140000-0x00000000014BE000-memory.dmp

Filesize
3.5MB

Download
memory/3004-7-0x0000000074110000-0x00000000746BB000-memory.dmp

Filesize
5.7MB

Download
memory/3004-20-0x0000000006020000-0x000000000639E000-memory.dmp

Filesize
3.5MB

Download
memory/3004-17-0x0000000006020000-0x000000000639E000-memory.dmp

Filesize
3.5MB

Download
memory/3004-0-0x0000000000AF0000-0x0000000000E6E000-memory.dmp

Filesize
3.5MB

Download
memory/3004-6-0x0000000074110000-0x00000000746BB000-memory.dmp

Filesize
5.7MB

Download
memory/3004-26-0x0000000000AF0000-0x0000000000E6E000-memory.dmp

Filesize
3.5MB

Download
memory/3004-27-0x0000000074110000-0x00000000746BB000-memory.dmp

Filesize
5.7MB

Download
memory/3004-4-0x0000000000AF0000-0x0000000000E6E000-memory.dmp

Filesize
3.5MB

Download
memory/3004-3-0x0000000000A80000-0x0000000000AC0000-memory.dmp

Filesize
256KB

Download
memory/3004-2-0x0000000074110000-0x00000000746BB000-memory.dmp

Filesize
5.7MB

Download
memory/3004-1-0x0000000074110000-0x00000000746BB000-memory.dmp

Filesize
5.7MB

Download