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

976 System.exe

pid	process
976	System.exe

Drops startup file 2 IoCs

Processes:

System.exe0x0007000000005c51-56.exe

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

Loads dropped DLL 2 IoCs

Processes:

0x0007000000005c51-56.exe

pid process

1096 0x0007000000005c51-56.exe
1096 0x0007000000005c51-56.exe

pid	process
1096	0x0007000000005c51-56.exe
1096	0x0007000000005c51-56.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-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Windows\CurrentVersion\Run\Windows2 = "C:\\ProgramData\\System.exe"	0x0007000000005c51-56.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\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-1-5-21-2277218442-1199762539-2004043321-1000\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 19 IoCs

Processes:

System.exe

description	pid	process
Token: SeDebugPrivilege	976	System.exe
Token: 33	976	System.exe
Token: SeIncBasePriorityPrivilege	976	System.exe
Token: 33	976	System.exe
Token: SeIncBasePriorityPrivilege	976	System.exe
Token: 33	976	System.exe
Token: SeIncBasePriorityPrivilege	976	System.exe
Token: 33	976	System.exe
Token: SeIncBasePriorityPrivilege	976	System.exe
Token: 33	976	System.exe
Token: SeIncBasePriorityPrivilege	976	System.exe
Token: 33	976	System.exe
Token: SeIncBasePriorityPrivilege	976	System.exe
Token: 33	976	System.exe
Token: SeIncBasePriorityPrivilege	976	System.exe
Token: 33	976	System.exe
Token: SeIncBasePriorityPrivilege	976	System.exe
Token: 33	976	System.exe
Token: SeIncBasePriorityPrivilege	976	System.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

0x0007000000005c51-56.exe

description	pid	process	target process
PID 1096 wrote to memory of 976	1096	0x0007000000005c51-56.exe	System.exe
PID 1096 wrote to memory of 976	1096	0x0007000000005c51-56.exe	System.exe
PID 1096 wrote to memory of 976	1096	0x0007000000005c51-56.exe	System.exe
PID 1096 wrote to memory of 976	1096	0x0007000000005c51-56.exe	System.exe
PID 1096 wrote to memory of 1716	1096	0x0007000000005c51-56.exe	attrib.exe
PID 1096 wrote to memory of 1716	1096	0x0007000000005c51-56.exe	attrib.exe
PID 1096 wrote to memory of 1716	1096	0x0007000000005c51-56.exe	attrib.exe
PID 1096 wrote to memory of 1716	1096	0x0007000000005c51-56.exe	attrib.exe

Views/modifies file attributes 1 TTPs 1 IoCs
evasion

Hidden Files and Directories
T1158

Processes:

attrib.exe

pid process

1716 attrib.exe

pid	process
1716	attrib.exe

C:\Users\Admin\AppData\Local\Temp\0x0007000000005c51-56.exe
"C:\Users\Admin\AppData\Local\Temp\0x0007000000005c51-56.exe"
1⤵
- Drops startup file
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1096

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:976

C:\Windows\SysWOW64\attrib.exe
attrib +h +r +s "C:\ProgramData\System.exe"
2⤵
- Views/modifies file attributes
PID:1716

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

System Information Discovery

1

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
4305dec533b213e47666151f27321a03

SHA1
ad5e32c58bd165c64128ce02116e76b844eb0495

SHA256
b670339430811cf32cc7053cb8e9b80c8cde43998c9d22b2357d3a370149cf12

SHA512
1500f7db67762ced40e34b5a7b9d74f37fa766c725e5a44e43802535904c8537ecb80b75c9c80761ca0849f0090d153c5b92ca105c137b5f671f30262624b817

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\Windows.lnk
Filesize
1022B

MD5
6f2368d28f741910c6f122556254a657

SHA1
b962374626a1f96c6aa20865dddd32a390df293e

SHA256
b9c461577043f5f142417f5446f27a6b3e5b457a4fda5149e7417ed15f6b8e6d

SHA512
6f9abb9e717bb4bda7a0f142405783c390d2d0c403c37b956818c8e9c5ac4021a3079b3fa5c497188e7610338d93719e61bd09ed25f149171013c8fe801788f5

Download Submit
\ProgramData\System.exe
Filesize
26KB

MD5
24bf1ae1d62be5e1283fc4ddc9110dd9

SHA1
7b60b080982e77eb4565dce877236297280fcf36

SHA256
55cc06f563e305e118f8d9d6307e88de5f802cd36f6bdf394e17b95bf852bd69

SHA512
b0b1228c90ac6f795c3ee641c94045023cfc8fea0dba82c37c382cc91376c3b03ca0900c82881d9c8d99363a4fdeca4e8bc758c47730444195d0c52703bef391

Download Submit
\ProgramData\System.exe
Filesize
26KB

MD5
24bf1ae1d62be5e1283fc4ddc9110dd9

SHA1
7b60b080982e77eb4565dce877236297280fcf36

SHA256
55cc06f563e305e118f8d9d6307e88de5f802cd36f6bdf394e17b95bf852bd69

SHA512
b0b1228c90ac6f795c3ee641c94045023cfc8fea0dba82c37c382cc91376c3b03ca0900c82881d9c8d99363a4fdeca4e8bc758c47730444195d0c52703bef391

Download Submit
memory/976-58-0x0000000000000000-mapping.dmp

Download
memory/976-66-0x0000000073F90000-0x000000007453B000-memory.dmp

Filesize
5.7MB

Download
memory/976-67-0x0000000073F90000-0x000000007453B000-memory.dmp

Filesize
5.7MB

Download
memory/1096-54-0x0000000075FB1000-0x0000000075FB3000-memory.dmp

Filesize
8KB

Download
memory/1096-55-0x0000000073F90000-0x000000007453B000-memory.dmp

Filesize
5.7MB

Download
memory/1096-65-0x0000000073F90000-0x000000007453B000-memory.dmp

Filesize
5.7MB

Download
memory/1716-64-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads