njrat | b1af59115af9cab0ec6b115ff5398c9979fd6e63b162d2c31b9004bc0bbde2f7

General

Target

AD58B25945745C24819493A24B4EB139.exe
Size

1.8MB
MD5

ad58b25945745c24819493a24b4eb139
SHA1

37df601266d4e8757c0018e091838378514524e5
SHA256

b1af59115af9cab0ec6b115ff5398c9979fd6e63b162d2c31b9004bc0bbde2f7
SHA512

ac2b87c7207abe2da0f1c096c64a118001f9c29dbfed4142b35665818738e187182d68accc9eec02fef3238c87263d913d48edeb463555577e45433cabbc9c32
SSDEEP

49152:qcbzAQvx5odIOhfAizfT0WTb+w7jVViMpbG90dkw:qcbfSdIKf7LdOE2We0n

Score

10^/10

njrat evasion persistence trojan

Malware Config

Signatures

njRAT/Bladabindi
Widely used RAT written in .NET.
trojan njrat
Modifies Windows Firewall 2 TTPs 1 IoCs
evasion

Windows Service
T1543.003

Disable or Modify System Firewall
T1562.004

Processes:

netsh.exe

pid process

2660 netsh.exe

pid	process
2660	netsh.exe

Drops startup file 2 IoCs

Processes:

svchost.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\325ed1ae2a47f27cdcc228f42fff7da3.exe	svchost.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\325ed1ae2a47f27cdcc228f42fff7da3.exe	svchost.exe

Executes dropped EXE 2 IoCs

Processes:

sakura_protected.exesvchost.exe

pid process

2864 sakura_protected.exe
2612 svchost.exe
Loads dropped DLL 3 IoCs

Processes:

AD58B25945745C24819493A24B4EB139.exe

pid process

2668 AD58B25945745C24819493A24B4EB139.exe
2668 AD58B25945745C24819493A24B4EB139.exe
2668 AD58B25945745C24819493A24B4EB139.exe

pid	process
2668	AD58B25945745C24819493A24B4EB139.exe
2668	AD58B25945745C24819493A24B4EB139.exe
2668	AD58B25945745C24819493A24B4EB139.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

svchost.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2444714103-3190537498-3629098939-1000\Software\Microsoft\Windows\CurrentVersion\Run\325ed1ae2a47f27cdcc228f42fff7da3 = "\"C:\\Windows\\svchost.exe\" .."	svchost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\325ed1ae2a47f27cdcc228f42fff7da3 = "\"C:\\Windows\\svchost.exe\" .."	svchost.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs 3 IoCs

Web Service
T1102

Processes:

flow ioc

2 4.tcp.eu.ngrok.io
4 4.tcp.eu.ngrok.io
6 4.tcp.eu.ngrok.io

flow	ioc
2	4.tcp.eu.ngrok.io
4	4.tcp.eu.ngrok.io
6	4.tcp.eu.ngrok.io

Drops autorun.inf file 1 TTPs 5 IoCs

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

Replication Through Removable Media

T1091

Processes:

svchost.exe

description	ioc	process
File opened for modification	C:\autorun.inf	svchost.exe
File created	D:\autorun.inf	svchost.exe
File created	F:\autorun.inf	svchost.exe
File opened for modification	F:\autorun.inf	svchost.exe
File created	C:\autorun.inf	svchost.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 17 IoCs

Processes:

sakura_protected.exesvchost.exe

pid	process
2864	sakura_protected.exe
2864	sakura_protected.exe
2612	svchost.exe
2612	svchost.exe
2612	svchost.exe
2612	svchost.exe
2612	svchost.exe
2612	svchost.exe
2612	svchost.exe
2612	svchost.exe
2612	svchost.exe
2612	svchost.exe
2612	svchost.exe
2612	svchost.exe
2612	svchost.exe
2612	svchost.exe
2612	svchost.exe

Drops file in Windows directory 3 IoCs

Processes:

sakura_protected.exesvchost.exe

description	ioc	process
File created	C:\Windows\svchost.exe	sakura_protected.exe
File opened for modification	C:\Windows\svchost.exe	sakura_protected.exe
File opened for modification	C:\Windows\svchost.exe	svchost.exe

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

System Information Discovery
T1082
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

sakura_protected.exesvchost.exe

pid process

2864 sakura_protected.exe
2612 svchost.exe

Suspicious use of AdjustPrivilegeToken 35 IoCs

Processes:

svchost.exe

description	pid	process
Token: SeDebugPrivilege	2612	svchost.exe
Token: 33	2612	svchost.exe
Token: SeIncBasePriorityPrivilege	2612	svchost.exe
Token: 33	2612	svchost.exe
Token: SeIncBasePriorityPrivilege	2612	svchost.exe
Token: 33	2612	svchost.exe
Token: SeIncBasePriorityPrivilege	2612	svchost.exe
Token: 33	2612	svchost.exe
Token: SeIncBasePriorityPrivilege	2612	svchost.exe
Token: 33	2612	svchost.exe
Token: SeIncBasePriorityPrivilege	2612	svchost.exe
Token: 33	2612	svchost.exe
Token: SeIncBasePriorityPrivilege	2612	svchost.exe
Token: 33	2612	svchost.exe
Token: SeIncBasePriorityPrivilege	2612	svchost.exe
Token: 33	2612	svchost.exe
Token: SeIncBasePriorityPrivilege	2612	svchost.exe
Token: 33	2612	svchost.exe
Token: SeIncBasePriorityPrivilege	2612	svchost.exe
Token: 33	2612	svchost.exe
Token: SeIncBasePriorityPrivilege	2612	svchost.exe
Token: 33	2612	svchost.exe
Token: SeIncBasePriorityPrivilege	2612	svchost.exe
Token: 33	2612	svchost.exe
Token: SeIncBasePriorityPrivilege	2612	svchost.exe
Token: 33	2612	svchost.exe
Token: SeIncBasePriorityPrivilege	2612	svchost.exe
Token: 33	2612	svchost.exe
Token: SeIncBasePriorityPrivilege	2612	svchost.exe
Token: 33	2612	svchost.exe
Token: SeIncBasePriorityPrivilege	2612	svchost.exe
Token: 33	2612	svchost.exe
Token: SeIncBasePriorityPrivilege	2612	svchost.exe
Token: 33	2612	svchost.exe
Token: SeIncBasePriorityPrivilege	2612	svchost.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

sakura_protected.exesvchost.exe

pid process

2864 sakura_protected.exe
2612 svchost.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

AD58B25945745C24819493A24B4EB139.exesakura_protected.exesvchost.exe

description	pid	process	target process
PID 2668 wrote to memory of 2864	2668	AD58B25945745C24819493A24B4EB139.exe	sakura_protected.exe
PID 2668 wrote to memory of 2864	2668	AD58B25945745C24819493A24B4EB139.exe	sakura_protected.exe
PID 2668 wrote to memory of 2864	2668	AD58B25945745C24819493A24B4EB139.exe	sakura_protected.exe
PID 2668 wrote to memory of 2864	2668	AD58B25945745C24819493A24B4EB139.exe	sakura_protected.exe
PID 2864 wrote to memory of 2612	2864	sakura_protected.exe	svchost.exe
PID 2864 wrote to memory of 2612	2864	sakura_protected.exe	svchost.exe
PID 2864 wrote to memory of 2612	2864	sakura_protected.exe	svchost.exe
PID 2864 wrote to memory of 2612	2864	sakura_protected.exe	svchost.exe
PID 2612 wrote to memory of 2660	2612	svchost.exe	netsh.exe
PID 2612 wrote to memory of 2660	2612	svchost.exe	netsh.exe
PID 2612 wrote to memory of 2660	2612	svchost.exe	netsh.exe
PID 2612 wrote to memory of 2660	2612	svchost.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\AD58B25945745C24819493A24B4EB139.exe
"C:\Users\Admin\AppData\Local\Temp\AD58B25945745C24819493A24B4EB139.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2668

C:\Users\Admin\AppData\Local\Temp\sakura_protected.exe
"C:\Users\Admin\AppData\Local\Temp\sakura_protected.exe"
2⤵
- Executes dropped EXE
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2864

C:\Windows\svchost.exe
"C:\Windows\svchost.exe"
3⤵
- Drops startup file
- Executes dropped EXE
- Adds Run key to start application
- Drops autorun.inf file
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2612

C:\Windows\SysWOW64\netsh.exe
netsh firewall add allowedprogram "C:\Windows\svchost.exe" "svchost.exe" ENABLE
4⤵
- Modifies Windows Firewall
PID:2660

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Replication Through Removable Media

1

T1091

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

Defense Evasion

Impair Defenses

1

T1562

Disable or Modify System Firewall

Modify Registry

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Replication Through Removable Media

1

T1091

Collection

Command and Control

Web Service

1

T1102

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\sakura_protected.exe
Filesize
76KB

MD5
e4a3b4e440dc8085cbfba006f49c45a8

SHA1
8dbdc6af00a27917e5a0ad00e97e610a119ef2fb

SHA256
fd859101c9f7a105f94cdbee54f86df5d72ed2402020597dad7897e7fd6ba909

SHA512
d8bc79abcd7384f2d6ea28b6e019b9cb9dc0a0750ae5ac8e32443eecf0abd18d445d7510178152fd385459f338ded34354e9043b5ed76cbe47116cff857a3ab5

Download Submit
\Users\Admin\AppData\Local\Temp\sakura_protected.exe
Filesize
33KB

MD5
78f8803221ec9fab2c6909f0599b80b6

SHA1
c672645afdbd7f8eba2a5b12b6ffc4621ccaa4ac

SHA256
dc448145a5ce1c440c2ac0df6a611826ffc94415c6f179103e3dcb7230591276

SHA512
26bf76980efcc74b5124423800f796f7e4424c11f163a2390ffbba329d7febbd44716df0f9892cc9b37f5854da6465626fb2d511d3c6cd744729076a4efe28da

Download Submit
\Users\Admin\AppData\Local\Temp\sakura_protected.exe
Filesize
1.1MB

MD5
ecb25b8adf7f999fba6245d362153fdb

SHA1
b406b28ea8c548d9456704075f0eca1cae069d65

SHA256
ebe160919d1646d96694de6a38b7ac570f1827dedb163174bee9253a7475dd54

SHA512
168d62846ff9416c150e2606843b48353afba8dd4096a0b020d3fdf04b06b61d9ebd932c81474d75cd8ef27adbb6e68aa09357b552bef764fc4c3a4eef6ac9d0

Download Submit
memory/2612-37-0x0000000000CE0000-0x0000000001056000-memory.dmp

Filesize
3.5MB

Download
memory/2612-54-0x0000000000C90000-0x0000000000CD0000-memory.dmp

Filesize
256KB

Download
memory/2612-53-0x0000000074750000-0x0000000074CFB000-memory.dmp

Filesize
5.7MB

Download
memory/2612-40-0x0000000074750000-0x0000000074CFB000-memory.dmp

Filesize
5.7MB

Download
memory/2668-25-0x00000000035A0000-0x0000000003916000-memory.dmp

Filesize
3.5MB

Download
memory/2864-26-0x0000000000250000-0x00000000005C6000-memory.dmp

Filesize
3.5MB

Download
memory/2864-29-0x0000000074750000-0x0000000074CFB000-memory.dmp

Filesize
5.7MB

Download
memory/2864-41-0x0000000074750000-0x0000000074CFB000-memory.dmp

Filesize
5.7MB

Download
memory/2864-39-0x0000000000250000-0x00000000005C6000-memory.dmp

Filesize
3.5MB

Download
memory/2864-30-0x0000000002FA0000-0x0000000002FE0000-memory.dmp

Filesize
256KB

Download
memory/2864-28-0x0000000074750000-0x0000000074CFB000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads