njrat | 2c619425072b006b1a74b653d5ab431a0f00678d8c04a4eed67833c3a876b180

General

Target

b444ad46648439ce627075373ceba888.exe
Size

44KB
MD5

b444ad46648439ce627075373ceba888
SHA1

3ced85300587a1d284fbe31e91f94b4192edd35a
SHA256

2c619425072b006b1a74b653d5ab431a0f00678d8c04a4eed67833c3a876b180
SHA512

08e83f68817892bb4ca50f789dbbbe4dafd2ecd64d1ef2ecca6710d07ccce95ba5d9912b10190ce89fdbe3870285934fe6a94fdf46e6ebb9b871b4f4c9451e3f

Score

10^/10

njrat persistence trojan

Malware Config

Signatures

njRAT/Bladabindi
Widely used RAT written in .NET.
trojan njrat
Executes dropped EXE 3 IoCs

Processes:

srchost.exeServer.exeServer.exe

pid process

960 srchost.exe
512 Server.exe
2692 Server.exe

pid	process
960	srchost.exe
512	Server.exe
2692	Server.exe

Drops startup file 2 IoCs

Processes:

srchost.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\srchost32.exe	srchost.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\srchost32.exe	srchost.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

srchost.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-369956170-74428499-1628131376-1000\Software\Microsoft\Windows\CurrentVersion\Run\Windows Update = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\srchost.exe\" .."	srchost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Windows Update = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\srchost.exe\" .."	srchost.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

3756 schtasks.exe
Suspicious behavior: GetForegroundWindowSpam 2 IoCs

Processes:

b444ad46648439ce627075373ceba888.exesrchost.exe

pid process

3704 b444ad46648439ce627075373ceba888.exe
960 srchost.exe

pid	process
3756	schtasks.exe

pid	process
3704	b444ad46648439ce627075373ceba888.exe
960	srchost.exe

Suspicious use of AdjustPrivilegeToken 29 IoCs

Processes:

srchost.exe

description	pid	process
Token: SeDebugPrivilege	960	srchost.exe
Token: 33	960	srchost.exe
Token: SeIncBasePriorityPrivilege	960	srchost.exe
Token: 33	960	srchost.exe
Token: SeIncBasePriorityPrivilege	960	srchost.exe
Token: 33	960	srchost.exe
Token: SeIncBasePriorityPrivilege	960	srchost.exe
Token: 33	960	srchost.exe
Token: SeIncBasePriorityPrivilege	960	srchost.exe
Token: 33	960	srchost.exe
Token: SeIncBasePriorityPrivilege	960	srchost.exe
Token: 33	960	srchost.exe
Token: SeIncBasePriorityPrivilege	960	srchost.exe
Token: 33	960	srchost.exe
Token: SeIncBasePriorityPrivilege	960	srchost.exe
Token: 33	960	srchost.exe
Token: SeIncBasePriorityPrivilege	960	srchost.exe
Token: 33	960	srchost.exe
Token: SeIncBasePriorityPrivilege	960	srchost.exe
Token: 33	960	srchost.exe
Token: SeIncBasePriorityPrivilege	960	srchost.exe
Token: 33	960	srchost.exe
Token: SeIncBasePriorityPrivilege	960	srchost.exe
Token: 33	960	srchost.exe
Token: SeIncBasePriorityPrivilege	960	srchost.exe
Token: 33	960	srchost.exe
Token: SeIncBasePriorityPrivilege	960	srchost.exe
Token: 33	960	srchost.exe
Token: SeIncBasePriorityPrivilege	960	srchost.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

b444ad46648439ce627075373ceba888.exesrchost.exe

description	pid	process	target process
PID 3704 wrote to memory of 960	3704	b444ad46648439ce627075373ceba888.exe	srchost.exe
PID 3704 wrote to memory of 960	3704	b444ad46648439ce627075373ceba888.exe	srchost.exe
PID 3704 wrote to memory of 960	3704	b444ad46648439ce627075373ceba888.exe	srchost.exe
PID 960 wrote to memory of 3756	960	srchost.exe	schtasks.exe
PID 960 wrote to memory of 3756	960	srchost.exe	schtasks.exe
PID 960 wrote to memory of 3756	960	srchost.exe	schtasks.exe

C:\Users\Admin\AppData\Local\Temp\b444ad46648439ce627075373ceba888.exe
"C:\Users\Admin\AppData\Local\Temp\b444ad46648439ce627075373ceba888.exe"
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
PID:3704

C:\Users\Admin\AppData\Local\Temp\srchost.exe
"C:\Users\Admin\AppData\Local\Temp\srchost.exe"
2⤵
- Executes dropped EXE
- Drops startup file
- Adds Run key to start application
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:960

C:\Windows\SysWOW64\schtasks.exe
schtasks /create /sc minute /mo 1 /tn Server /tr C:\Users\Admin\AppData\Local\Temp/Server.exe
3⤵
- Creates scheduled task(s)
PID:3756

C:\Users\Admin\AppData\Local\Temp\Server.exe
C:\Users\Admin\AppData\Local\Temp/Server.exe
1⤵
- Executes dropped EXE
PID:512

C:\Users\Admin\AppData\Local\Temp\Server.exe
C:\Users\Admin\AppData\Local\Temp/Server.exe
1⤵
- Executes dropped EXE
PID:2692

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Registry Run Keys / Startup Folder

1

T1060

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\Server.exe.log
MD5
0de4a673c46d192f575c41e7c80ffc3e

SHA1
7a1da7e8ec2efd904ecb237ebedd4d7a3ee826f1

SHA256
c18d0ff8e7b83a8623a8515d91d65f68deef6da9f68d84886864177f45acbf65

SHA512
b505619848b2f6038e68a2d7baaa4cf314d39023a5b7a32001262ecda03a905986ac8a45a249745e29637b0acfaba1ae06bfaecc678283a808e6f9f4b455e209

Download Submit
C:\Users\Admin\AppData\Local\Temp\Server.exe
MD5
b444ad46648439ce627075373ceba888

SHA1
3ced85300587a1d284fbe31e91f94b4192edd35a

SHA256
2c619425072b006b1a74b653d5ab431a0f00678d8c04a4eed67833c3a876b180

SHA512
08e83f68817892bb4ca50f789dbbbe4dafd2ecd64d1ef2ecca6710d07ccce95ba5d9912b10190ce89fdbe3870285934fe6a94fdf46e6ebb9b871b4f4c9451e3f

Download Submit
C:\Users\Admin\AppData\Local\Temp\Server.exe
MD5
b444ad46648439ce627075373ceba888

SHA1
3ced85300587a1d284fbe31e91f94b4192edd35a

SHA256
2c619425072b006b1a74b653d5ab431a0f00678d8c04a4eed67833c3a876b180

SHA512
08e83f68817892bb4ca50f789dbbbe4dafd2ecd64d1ef2ecca6710d07ccce95ba5d9912b10190ce89fdbe3870285934fe6a94fdf46e6ebb9b871b4f4c9451e3f

Download Submit
C:\Users\Admin\AppData\Local\Temp\Server.exe
MD5
b444ad46648439ce627075373ceba888

SHA1
3ced85300587a1d284fbe31e91f94b4192edd35a

SHA256
2c619425072b006b1a74b653d5ab431a0f00678d8c04a4eed67833c3a876b180

SHA512
08e83f68817892bb4ca50f789dbbbe4dafd2ecd64d1ef2ecca6710d07ccce95ba5d9912b10190ce89fdbe3870285934fe6a94fdf46e6ebb9b871b4f4c9451e3f

Download Submit
C:\Users\Admin\AppData\Local\Temp\srchost.exe
MD5
b444ad46648439ce627075373ceba888

SHA1
3ced85300587a1d284fbe31e91f94b4192edd35a

SHA256
2c619425072b006b1a74b653d5ab431a0f00678d8c04a4eed67833c3a876b180

SHA512
08e83f68817892bb4ca50f789dbbbe4dafd2ecd64d1ef2ecca6710d07ccce95ba5d9912b10190ce89fdbe3870285934fe6a94fdf46e6ebb9b871b4f4c9451e3f

Download Submit
C:\Users\Admin\AppData\Local\Temp\srchost.exe
MD5
b444ad46648439ce627075373ceba888

SHA1
3ced85300587a1d284fbe31e91f94b4192edd35a

SHA256
2c619425072b006b1a74b653d5ab431a0f00678d8c04a4eed67833c3a876b180

SHA512
08e83f68817892bb4ca50f789dbbbe4dafd2ecd64d1ef2ecca6710d07ccce95ba5d9912b10190ce89fdbe3870285934fe6a94fdf46e6ebb9b871b4f4c9451e3f

Download Submit
memory/512-128-0x0000000005010000-0x0000000005011000-memory.dmp

Filesize
4KB

Download
memory/960-123-0x0000000005570000-0x000000000557A000-memory.dmp

Filesize
40KB

Download
memory/960-124-0x0000000005880000-0x00000000058E6000-memory.dmp

Filesize
408KB

Download
memory/960-125-0x00000000066F0000-0x0000000006708000-memory.dmp

Filesize
96KB

Download
memory/960-122-0x0000000005230000-0x00000000052CC000-memory.dmp

Filesize
624KB

Download
memory/2692-131-0x0000000004E70000-0x0000000004F0C000-memory.dmp

Filesize
624KB

Download
memory/3704-115-0x0000000000BB0000-0x0000000000BC0000-memory.dmp

Filesize
64KB

Download
memory/3704-119-0x0000000005360000-0x00000000053FC000-memory.dmp

Filesize
624KB

Download
memory/3704-118-0x00000000057E0000-0x0000000005872000-memory.dmp

Filesize
584KB

Download
memory/3704-117-0x0000000005BE0000-0x00000000060DE000-memory.dmp

Filesize
5.0MB

Download
memory/3704-116-0x0000000005440000-0x00000000054DC000-memory.dmp

Filesize
624KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads