njrat | 8fc6e869d0bb32f11f19ff4628bfd3e8c7c0616f01becb93f4c828955e28465b

Analysis

max time kernel
151s
max time network
149s
platform
windows10_x64
resource
win10-en-20211208
submitted
29-12-2021 19:11

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General

Target

3D882526B381E7B346837E515ED7817E.exe
Size

29.3MB
MD5

3d882526b381e7b346837e515ed7817e
SHA1

13b0ad476f89697708910d80152b56224ee8cfe1
SHA256

8fc6e869d0bb32f11f19ff4628bfd3e8c7c0616f01becb93f4c828955e28465b
SHA512

f61ac064d31331e827afa4701bd05c892788e25f3670fa47239e04a36185051d0bf42707a1c4eec1d14b87e3c209eff475cbdc61b435af3b387dd1b9129d9b63

Score

10^/10

njrat pc suricata trojan

Malware Config

Extracted

Family

njrat

Version

Njrat 0.7 Golden By Hassan Amiri

Botnet

8.tcp.ngrok.io:12581

Mutex

steam_loder

Attributes

reg_key
steam_loder
splitter
|Hassan|

Signatures

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
Executes dropped EXE 5 IoCs

Processes:

otc4.exesteam_loder.exeServer.exeServer.exeServer.exe

pid process

1388 otc4.exe
3632 steam_loder.exe
2636 Server.exe
1836 Server.exe
2200 Server.exe

pid	process
1388	otc4.exe
3632	steam_loder.exe
2636	Server.exe
1836	Server.exe
2200	Server.exe

Drops startup file 2 IoCs

Processes:

steam_loder.exe

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

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

System Information Discovery
T1082
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task
T1053

Processes:

schtasks.exe

pid process

3364 schtasks.exe
Suspicious behavior: GetForegroundWindowSpam 2 IoCs

Processes:

otc4.exesteam_loder.exe

pid process

1388 otc4.exe
3632 steam_loder.exe

pid	process
3364	schtasks.exe

pid	process
1388	otc4.exe
3632	steam_loder.exe

Suspicious use of AdjustPrivilegeToken 31 IoCs

Processes:

steam_loder.exe

description	pid	process
Token: SeDebugPrivilege	3632	steam_loder.exe
Token: 33	3632	steam_loder.exe
Token: SeIncBasePriorityPrivilege	3632	steam_loder.exe
Token: 33	3632	steam_loder.exe
Token: SeIncBasePriorityPrivilege	3632	steam_loder.exe
Token: 33	3632	steam_loder.exe
Token: SeIncBasePriorityPrivilege	3632	steam_loder.exe
Token: 33	3632	steam_loder.exe
Token: SeIncBasePriorityPrivilege	3632	steam_loder.exe
Token: 33	3632	steam_loder.exe
Token: SeIncBasePriorityPrivilege	3632	steam_loder.exe
Token: 33	3632	steam_loder.exe
Token: SeIncBasePriorityPrivilege	3632	steam_loder.exe
Token: 33	3632	steam_loder.exe
Token: SeIncBasePriorityPrivilege	3632	steam_loder.exe
Token: 33	3632	steam_loder.exe
Token: SeIncBasePriorityPrivilege	3632	steam_loder.exe
Token: 33	3632	steam_loder.exe
Token: SeIncBasePriorityPrivilege	3632	steam_loder.exe
Token: 33	3632	steam_loder.exe
Token: SeIncBasePriorityPrivilege	3632	steam_loder.exe
Token: 33	3632	steam_loder.exe
Token: SeIncBasePriorityPrivilege	3632	steam_loder.exe
Token: 33	3632	steam_loder.exe
Token: SeIncBasePriorityPrivilege	3632	steam_loder.exe
Token: 33	3632	steam_loder.exe
Token: SeIncBasePriorityPrivilege	3632	steam_loder.exe
Token: 33	3632	steam_loder.exe
Token: SeIncBasePriorityPrivilege	3632	steam_loder.exe
Token: 33	3632	steam_loder.exe
Token: SeIncBasePriorityPrivilege	3632	steam_loder.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

3D882526B381E7B346837E515ED7817E.exeotc4.exesteam_loder.exe

description	pid	process	target process
PID 3840 wrote to memory of 1388	3840	3D882526B381E7B346837E515ED7817E.exe	otc4.exe
PID 3840 wrote to memory of 1388	3840	3D882526B381E7B346837E515ED7817E.exe	otc4.exe
PID 1388 wrote to memory of 3632	1388	otc4.exe	steam_loder.exe
PID 1388 wrote to memory of 3632	1388	otc4.exe	steam_loder.exe
PID 3632 wrote to memory of 3364	3632	steam_loder.exe	schtasks.exe
PID 3632 wrote to memory of 3364	3632	steam_loder.exe	schtasks.exe

C:\Users\Admin\AppData\Local\Temp\3D882526B381E7B346837E515ED7817E.exe
"C:\Users\Admin\AppData\Local\Temp\3D882526B381E7B346837E515ED7817E.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:3840

C:\Users\Admin\AppData\Local\Temp\otc4.exe
"C:\Users\Admin\AppData\Local\Temp\otc4.exe"
2⤵
- Executes dropped EXE
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
PID:1388

C:\ProgramData\steam_loder.exe
"C:\ProgramData\steam_loder.exe"
3⤵
- Executes dropped EXE
- Drops startup file
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3632

C:\Windows\SYSTEM32\schtasks.exe
schtasks /create /sc minute /mo 1 /tn Server /tr C:\Users\Admin\AppData\Local\Temp/Server.exe
4⤵
- Creates scheduled task(s)
PID:3364

C:\Users\Admin\AppData\Local\Temp\Server.exe
C:\Users\Admin\AppData\Local\Temp/Server.exe
1⤵
- Executes dropped EXE
PID:2636

C:\Users\Admin\AppData\Local\Temp\Server.exe
C:\Users\Admin\AppData\Local\Temp/Server.exe
1⤵
- Executes dropped EXE
PID:1836

C:\Users\Admin\AppData\Local\Temp\Server.exe
C:\Users\Admin\AppData\Local\Temp/Server.exe
1⤵
- Executes dropped EXE
PID:2200

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\ProgramData\steam_loder.exe

MD5
2c1d22b7c1fc2b413e183970e556d715

SHA1
0b3f3db825e5b33c56879a74dec08463dee17a9b

SHA256
3aa9f25e2af13805f0ef2bb96b5a32cd2b5e8dec88c5f2f0deb93d86091d105f

SHA512
557984147f0bc080ef22794c374f3a8b8ede8d76cb131ba50b13dc1c07b287ff36be054e209eba3708a50d04d9bc521b04bf8b8e9b2c8aad3fd460c719f7c6b8

Download Submit
C:\ProgramData\steam_loder.exe

MD5
2c1d22b7c1fc2b413e183970e556d715

SHA1
0b3f3db825e5b33c56879a74dec08463dee17a9b

SHA256
3aa9f25e2af13805f0ef2bb96b5a32cd2b5e8dec88c5f2f0deb93d86091d105f

SHA512
557984147f0bc080ef22794c374f3a8b8ede8d76cb131ba50b13dc1c07b287ff36be054e209eba3708a50d04d9bc521b04bf8b8e9b2c8aad3fd460c719f7c6b8

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\Server.exe.log

MD5
ada37846cea22757d6153e65b720a367

SHA1
d9c9e33987d095b32c364fe40dd6f054feaf7ea9

SHA256
7daa4e8a6296b9e3df9669f6a574cbe481f2df9c751affbeb41a541173264520

SHA512
592640e40ad0c6bcd8719f2cdbf828f2e322ad729c23ac3b44dd252a9c0b08d370a1cfcbcb9038cdffed0866ae4d2f8762c421f5e1a89c8d9273f482d9d2662f

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

MD5
2c1d22b7c1fc2b413e183970e556d715

SHA1
0b3f3db825e5b33c56879a74dec08463dee17a9b

SHA256
3aa9f25e2af13805f0ef2bb96b5a32cd2b5e8dec88c5f2f0deb93d86091d105f

SHA512
557984147f0bc080ef22794c374f3a8b8ede8d76cb131ba50b13dc1c07b287ff36be054e209eba3708a50d04d9bc521b04bf8b8e9b2c8aad3fd460c719f7c6b8

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

MD5
2c1d22b7c1fc2b413e183970e556d715

SHA1
0b3f3db825e5b33c56879a74dec08463dee17a9b

SHA256
3aa9f25e2af13805f0ef2bb96b5a32cd2b5e8dec88c5f2f0deb93d86091d105f

SHA512
557984147f0bc080ef22794c374f3a8b8ede8d76cb131ba50b13dc1c07b287ff36be054e209eba3708a50d04d9bc521b04bf8b8e9b2c8aad3fd460c719f7c6b8

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

MD5
2c1d22b7c1fc2b413e183970e556d715

SHA1
0b3f3db825e5b33c56879a74dec08463dee17a9b

SHA256
3aa9f25e2af13805f0ef2bb96b5a32cd2b5e8dec88c5f2f0deb93d86091d105f

SHA512
557984147f0bc080ef22794c374f3a8b8ede8d76cb131ba50b13dc1c07b287ff36be054e209eba3708a50d04d9bc521b04bf8b8e9b2c8aad3fd460c719f7c6b8

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

MD5
2c1d22b7c1fc2b413e183970e556d715

SHA1
0b3f3db825e5b33c56879a74dec08463dee17a9b

SHA256
3aa9f25e2af13805f0ef2bb96b5a32cd2b5e8dec88c5f2f0deb93d86091d105f

SHA512
557984147f0bc080ef22794c374f3a8b8ede8d76cb131ba50b13dc1c07b287ff36be054e209eba3708a50d04d9bc521b04bf8b8e9b2c8aad3fd460c719f7c6b8

Download Submit
C:\Users\Admin\AppData\Local\Temp\otc4.exe

MD5
2c1d22b7c1fc2b413e183970e556d715

SHA1
0b3f3db825e5b33c56879a74dec08463dee17a9b

SHA256
3aa9f25e2af13805f0ef2bb96b5a32cd2b5e8dec88c5f2f0deb93d86091d105f

SHA512
557984147f0bc080ef22794c374f3a8b8ede8d76cb131ba50b13dc1c07b287ff36be054e209eba3708a50d04d9bc521b04bf8b8e9b2c8aad3fd460c719f7c6b8

Download Submit
C:\Users\Admin\AppData\Local\Temp\otc4.exe

MD5
2c1d22b7c1fc2b413e183970e556d715

SHA1
0b3f3db825e5b33c56879a74dec08463dee17a9b

SHA256
3aa9f25e2af13805f0ef2bb96b5a32cd2b5e8dec88c5f2f0deb93d86091d105f

SHA512
557984147f0bc080ef22794c374f3a8b8ede8d76cb131ba50b13dc1c07b287ff36be054e209eba3708a50d04d9bc521b04bf8b8e9b2c8aad3fd460c719f7c6b8

Download Submit
memory/1388-118-0x0000000000F70000-0x0000000000F78000-memory.dmp

Filesize
32KB

Download
memory/1388-119-0x0000000000F70000-0x0000000000F78000-memory.dmp

Filesize
32KB

Download
memory/1388-115-0x0000000000000000-mapping.dmp

Download
memory/1388-120-0x0000000001910000-0x0000000001922000-memory.dmp

Filesize
72KB

Download
memory/1388-121-0x000000001C670000-0x000000001C672000-memory.dmp

Filesize
8KB

Download
memory/1836-141-0x0000000001650000-0x0000000001652000-memory.dmp

Filesize
8KB

Download
memory/1836-140-0x0000000001350000-0x0000000001362000-memory.dmp

Filesize
72KB

Download
memory/1836-139-0x0000000000D60000-0x0000000000D68000-memory.dmp

Filesize
32KB

Download
memory/1836-138-0x0000000000D60000-0x0000000000D68000-memory.dmp

Filesize
32KB

Download
memory/2200-145-0x0000000000DE0000-0x0000000000DF2000-memory.dmp

Filesize
72KB

Download
memory/2200-144-0x00000000008F0000-0x00000000008F8000-memory.dmp

Filesize
32KB

Download
memory/2200-143-0x00000000008F0000-0x00000000008F8000-memory.dmp

Filesize
32KB

Download
memory/2200-146-0x0000000000FA0000-0x0000000000FA2000-memory.dmp

Filesize
8KB

Download
memory/2636-132-0x0000000000750000-0x0000000000758000-memory.dmp

Filesize
32KB

Download
memory/2636-135-0x000000001BF40000-0x000000001BF42000-memory.dmp

Filesize
8KB

Download
memory/2636-134-0x0000000000C40000-0x0000000000C52000-memory.dmp

Filesize
72KB

Download
memory/2636-133-0x0000000000750000-0x0000000000758000-memory.dmp

Filesize
32KB

Download
memory/3364-129-0x0000000000000000-mapping.dmp

Download
memory/3632-128-0x000000001C580000-0x000000001C582000-memory.dmp

Filesize
8KB

Download
memory/3632-127-0x0000000001740000-0x0000000001752000-memory.dmp

Filesize
72KB

Download
memory/3632-126-0x0000000000EA0000-0x0000000000EA8000-memory.dmp

Filesize
32KB

Download
memory/3632-125-0x0000000000EA0000-0x0000000000EA8000-memory.dmp

Filesize
32KB

Download
memory/3632-122-0x0000000000000000-mapping.dmp

Download