njrat | 55cc06f563e305e118f8d9d6307e88de5f802cd36f6bdf394e17b95bf852bd69

General

Target

0x0007000000005c51-56.exe
Size

26KB
MD5

24bf1ae1d62be5e1283fc4ddc9110dd9
SHA1

7b60b080982e77eb4565dce877236297280fcf36
SHA256

55cc06f563e305e118f8d9d6307e88de5f802cd36f6bdf394e17b95bf852bd69
SHA512

b0b1228c90ac6f795c3ee641c94045023cfc8fea0dba82c37c382cc91376c3b03ca0900c82881d9c8d99363a4fdeca4e8bc758c47730444195d0c52703bef391

Score

10^/10

njrat system persistence suricata trojan

Malware Config

Extracted

Family

njrat

Version

v2.0

Botnet

System

C2

2.tcp.ngrok.io:13817

Mutex

Windows

Attributes

reg_key
Windows
splitter
|-F-|

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 1 IoCs

Processes:

System.exe

pid process

4484 System.exe

pid	process
4484	System.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

Processes:

0x0007000000005c51-56.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Control Panel\International\Geo\Nation	0x0007000000005c51-56.exe

Drops startup file 2 IoCs

Processes:

0x0007000000005c51-56.exeSystem.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Windows.lnk	0x0007000000005c51-56.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Windows.lnk	System.exe

Adds Run key to start application 2 TTPs 5 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

0x0007000000005c51-56.exeSystem.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Windows2 = "C:\\ProgramData\\System.exe"	0x0007000000005c51-56.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Windows2 = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Templates\\Windows.URL"	System.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Windows2 = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Templates\\Windows.URL"	System.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Windows = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Templates\\Windows.URL"	System.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Windows = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Templates\\Windows.URL"	System.exe

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

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 33 IoCs

Processes:

System.exe

description	pid	process
Token: SeDebugPrivilege	4484	System.exe
Token: 33	4484	System.exe
Token: SeIncBasePriorityPrivilege	4484	System.exe
Token: 33	4484	System.exe
Token: SeIncBasePriorityPrivilege	4484	System.exe
Token: 33	4484	System.exe
Token: SeIncBasePriorityPrivilege	4484	System.exe
Token: 33	4484	System.exe
Token: SeIncBasePriorityPrivilege	4484	System.exe
Token: 33	4484	System.exe
Token: SeIncBasePriorityPrivilege	4484	System.exe
Token: 33	4484	System.exe
Token: SeIncBasePriorityPrivilege	4484	System.exe
Token: 33	4484	System.exe
Token: SeIncBasePriorityPrivilege	4484	System.exe
Token: 33	4484	System.exe
Token: SeIncBasePriorityPrivilege	4484	System.exe
Token: 33	4484	System.exe
Token: SeIncBasePriorityPrivilege	4484	System.exe
Token: 33	4484	System.exe
Token: SeIncBasePriorityPrivilege	4484	System.exe
Token: 33	4484	System.exe
Token: SeIncBasePriorityPrivilege	4484	System.exe
Token: 33	4484	System.exe
Token: SeIncBasePriorityPrivilege	4484	System.exe
Token: 33	4484	System.exe
Token: SeIncBasePriorityPrivilege	4484	System.exe
Token: 33	4484	System.exe
Token: SeIncBasePriorityPrivilege	4484	System.exe
Token: 33	4484	System.exe
Token: SeIncBasePriorityPrivilege	4484	System.exe
Token: 33	4484	System.exe
Token: SeIncBasePriorityPrivilege	4484	System.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

0x0007000000005c51-56.exe

description	pid	process	target process
PID 3124 wrote to memory of 4484	3124	0x0007000000005c51-56.exe	System.exe
PID 3124 wrote to memory of 4484	3124	0x0007000000005c51-56.exe	System.exe
PID 3124 wrote to memory of 4484	3124	0x0007000000005c51-56.exe	System.exe
PID 3124 wrote to memory of 2752	3124	0x0007000000005c51-56.exe	attrib.exe
PID 3124 wrote to memory of 2752	3124	0x0007000000005c51-56.exe	attrib.exe
PID 3124 wrote to memory of 2752	3124	0x0007000000005c51-56.exe	attrib.exe

Views/modifies file attributes 1 TTPs 1 IoCs
evasion

Hidden Files and Directories
T1158

Processes:

attrib.exe

pid process

2752 attrib.exe

pid	process
2752	attrib.exe

C:\Users\Admin\AppData\Local\Temp\0x0007000000005c51-56.exe
"C:\Users\Admin\AppData\Local\Temp\0x0007000000005c51-56.exe"
1⤵
- Checks computer location settings
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:3124

C:\ProgramData\System.exe
"C:\ProgramData\System.exe"
2⤵
- Executes dropped EXE
- Drops startup file
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
PID:4484

C:\Windows\SysWOW64\attrib.exe
attrib +h +r +s "C:\ProgramData\System.exe"
2⤵
- Views/modifies file attributes
PID:2752

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Hidden Files and Directories

1

T1158

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Hidden Files and Directories

1

T1158

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\ProgramData\System.exe
Filesize
26KB

MD5
24bf1ae1d62be5e1283fc4ddc9110dd9

SHA1
7b60b080982e77eb4565dce877236297280fcf36

SHA256
55cc06f563e305e118f8d9d6307e88de5f802cd36f6bdf394e17b95bf852bd69

SHA512
b0b1228c90ac6f795c3ee641c94045023cfc8fea0dba82c37c382cc91376c3b03ca0900c82881d9c8d99363a4fdeca4e8bc758c47730444195d0c52703bef391

Download Submit
C:\ProgramData\System.exe
Filesize
26KB

MD5
24bf1ae1d62be5e1283fc4ddc9110dd9

SHA1
7b60b080982e77eb4565dce877236297280fcf36

SHA256
55cc06f563e305e118f8d9d6307e88de5f802cd36f6bdf394e17b95bf852bd69

SHA512
b0b1228c90ac6f795c3ee641c94045023cfc8fea0dba82c37c382cc91376c3b03ca0900c82881d9c8d99363a4fdeca4e8bc758c47730444195d0c52703bef391

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Windows.lnk
Filesize
1KB

MD5
93bed2d3bfd0c14e4bc1cbc4bf9b6e04

SHA1
f18863797b7c0675b9f5a423dfd3503e83b50cc6

SHA256
65ee1f2e77fb0ba76c80d234f57869ff8fa9280a4c78706e6917bf749bfeaf64

SHA512
bb831df15f166eaa3cb6bf4eb8ae3e662be6224ba37f7c15422610f18c0b9343608702d22e42d5b0cf62744542dcc8b83a4fbfd5b5471e194a4a6a18a7ff08ec

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\Windows.lnk
Filesize
1KB

MD5
9ce4aa25d4d56e3e9e48227e3d67677d

SHA1
b58c9d535af5d1862c868743d88c028fdda8e84d

SHA256
a55d0f2cdbfc05cc307abdc437d51da4a803b19fa1365ae641fc9fd146347f45

SHA512
0707249d7c065666a48096b3c1f2b5dd1605c19d40c18df24057298e10d68919976409f0cccac678db2ac6b2c28d7c30ebb521150fc9cb7c5c866187f50bf4c8

Download Submit
memory/2752-133-0x0000000000000000-mapping.dmp

Download
memory/3124-130-0x00000000750D0000-0x0000000075681000-memory.dmp

Filesize
5.7MB

Download
memory/3124-137-0x00000000750D0000-0x0000000075681000-memory.dmp

Filesize
5.7MB

Download
memory/4484-131-0x0000000000000000-mapping.dmp

Download
memory/4484-135-0x00000000750D0000-0x0000000075681000-memory.dmp

Filesize
5.7MB

Download
memory/4484-139-0x00000000750D0000-0x0000000075681000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads