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

4468 System.exe

pid	process
4468	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-1-5-21-1809750270-3141839489-3074374771-1000\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:

System.exe0x0007000000005c51-56.exe

description	ioc	process
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-1-5-21-1809750270-3141839489-3074374771-1000\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
Set value (str)	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Windows2 = "C:\\ProgramData\\System.exe"	0x0007000000005c51-56.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Windows2 = "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	4468	System.exe
Token: 33	4468	System.exe
Token: SeIncBasePriorityPrivilege	4468	System.exe
Token: 33	4468	System.exe
Token: SeIncBasePriorityPrivilege	4468	System.exe
Token: 33	4468	System.exe
Token: SeIncBasePriorityPrivilege	4468	System.exe
Token: 33	4468	System.exe
Token: SeIncBasePriorityPrivilege	4468	System.exe
Token: 33	4468	System.exe
Token: SeIncBasePriorityPrivilege	4468	System.exe
Token: 33	4468	System.exe
Token: SeIncBasePriorityPrivilege	4468	System.exe
Token: 33	4468	System.exe
Token: SeIncBasePriorityPrivilege	4468	System.exe
Token: 33	4468	System.exe
Token: SeIncBasePriorityPrivilege	4468	System.exe
Token: 33	4468	System.exe
Token: SeIncBasePriorityPrivilege	4468	System.exe
Token: 33	4468	System.exe
Token: SeIncBasePriorityPrivilege	4468	System.exe
Token: 33	4468	System.exe
Token: SeIncBasePriorityPrivilege	4468	System.exe
Token: 33	4468	System.exe
Token: SeIncBasePriorityPrivilege	4468	System.exe
Token: 33	4468	System.exe
Token: SeIncBasePriorityPrivilege	4468	System.exe
Token: 33	4468	System.exe
Token: SeIncBasePriorityPrivilege	4468	System.exe
Token: 33	4468	System.exe
Token: SeIncBasePriorityPrivilege	4468	System.exe
Token: 33	4468	System.exe
Token: SeIncBasePriorityPrivilege	4468	System.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

0x0007000000005c51-56.exe

description	pid	process	target process
PID 2912 wrote to memory of 4468	2912	0x0007000000005c51-56.exe	System.exe
PID 2912 wrote to memory of 4468	2912	0x0007000000005c51-56.exe	System.exe
PID 2912 wrote to memory of 4468	2912	0x0007000000005c51-56.exe	System.exe
PID 2912 wrote to memory of 4492	2912	0x0007000000005c51-56.exe	attrib.exe
PID 2912 wrote to memory of 4492	2912	0x0007000000005c51-56.exe	attrib.exe
PID 2912 wrote to memory of 4492	2912	0x0007000000005c51-56.exe	attrib.exe

Views/modifies file attributes 1 TTPs 1 IoCs
evasion

Hidden Files and Directories
T1158

Processes:

attrib.exe

pid process

4492 attrib.exe

pid	process
4492	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:2912

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:4468

C:\Windows\SysWOW64\attrib.exe
attrib +h +r +s "C:\ProgramData\System.exe"
2⤵
- Views/modifies file attributes
PID:4492

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
410ae6573a57f8905a61a761ba8a4bf7

SHA1
05f7ac4fbb3b28620c2d1e3bdf720dfc0dfc49c9

SHA256
e42e80a74d27dc83abfba9279eec985235c2c38635fb581eff53920868bdb1fc

SHA512
3051abccb8d94dfb95a16a8f935463a8a320a55d854f5482a124e64768d0dfee01e23cb7401a9f15063219a015101263cc738e8b72122f7256b2d1cfb9030438

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

MD5
88186e2545bd518b1e115b85887ae39f

SHA1
1251bf62f316af94da94c16b37fc7fa03c3c212d

SHA256
b80c05ac61f81322b55b0b4519042a0c5b160a076ead78b43d59d28386314c6d

SHA512
11ab6eef239e777ed25fdd8b919e25faf24049aac23c3fd3cc1bb04de095d4204897eab3cc603144bbf23866a93ec407ee74827abf098ca819ce8f4e57121974

Download Submit
memory/2912-130-0x0000000074690000-0x0000000074C41000-memory.dmp

Filesize
5.7MB

Download
memory/2912-136-0x0000000074690000-0x0000000074C41000-memory.dmp

Filesize
5.7MB

Download
memory/4468-131-0x0000000000000000-mapping.dmp

Download
memory/4468-137-0x0000000074690000-0x0000000074C41000-memory.dmp

Filesize
5.7MB

Download
memory/4468-139-0x0000000074690000-0x0000000074C41000-memory.dmp

Filesize
5.7MB

Download
memory/4492-134-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads