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

1660 System.exe

pid	process
1660	System.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

Loads dropped DLL 2 IoCs

Processes:

0x0007000000005c51-56.exe

pid process

1452 0x0007000000005c51-56.exe
1452 0x0007000000005c51-56.exe

pid	process
1452	0x0007000000005c51-56.exe
1452	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-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows\CurrentVersion\Run\Windows2 = "C:\\ProgramData\\System.exe"	0x0007000000005c51-56.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\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-1-5-21-1083475884-596052423-1669053738-1000\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	1660	System.exe
Token: 33	1660	System.exe
Token: SeIncBasePriorityPrivilege	1660	System.exe
Token: 33	1660	System.exe
Token: SeIncBasePriorityPrivilege	1660	System.exe
Token: 33	1660	System.exe
Token: SeIncBasePriorityPrivilege	1660	System.exe
Token: 33	1660	System.exe
Token: SeIncBasePriorityPrivilege	1660	System.exe
Token: 33	1660	System.exe
Token: SeIncBasePriorityPrivilege	1660	System.exe
Token: 33	1660	System.exe
Token: SeIncBasePriorityPrivilege	1660	System.exe
Token: 33	1660	System.exe
Token: SeIncBasePriorityPrivilege	1660	System.exe
Token: 33	1660	System.exe
Token: SeIncBasePriorityPrivilege	1660	System.exe
Token: 33	1660	System.exe
Token: SeIncBasePriorityPrivilege	1660	System.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

0x0007000000005c51-56.exe

description	pid	process	target process
PID 1452 wrote to memory of 1660	1452	0x0007000000005c51-56.exe	System.exe
PID 1452 wrote to memory of 1660	1452	0x0007000000005c51-56.exe	System.exe
PID 1452 wrote to memory of 1660	1452	0x0007000000005c51-56.exe	System.exe
PID 1452 wrote to memory of 1660	1452	0x0007000000005c51-56.exe	System.exe
PID 1452 wrote to memory of 776	1452	0x0007000000005c51-56.exe	attrib.exe
PID 1452 wrote to memory of 776	1452	0x0007000000005c51-56.exe	attrib.exe
PID 1452 wrote to memory of 776	1452	0x0007000000005c51-56.exe	attrib.exe
PID 1452 wrote to memory of 776	1452	0x0007000000005c51-56.exe	attrib.exe

Views/modifies file attributes 1 TTPs 1 IoCs
evasion

Hidden Files and Directories
T1158

Processes:

attrib.exe

pid process

776 attrib.exe

pid	process
776	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:1452

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:1660

C:\Windows\SysWOW64\attrib.exe
attrib +h +r +s "C:\ProgramData\System.exe"
2⤵
- Views/modifies file attributes
PID:776

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
acbbd4b2a61753de1d7f41435780fe0e

SHA1
a0b2ad8741a4cf4b40b8df8fe9210ce0c24c5fc7

SHA256
a252901365bffde96e9c6482d3b189f7ccb07fdefae3edc91ebcff21f6f8abbe

SHA512
17c267cdcdac25e1f9c853346a9388aef4483054dbd125f298c40081c7080a23342a074c741d664e43906539fa9b90d523d6b4399fddd1b86dc96efc45bb56ea

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\Windows.lnk
Filesize
1018B

MD5
6e7868f84be41b214fa9744b089b0215

SHA1
40e18c1e86e367f859045e1b72562556d06d7869

SHA256
085cfc36c9ffa86f069eeffa28317b2d724d8f81f3991d3f46e85f80f1a78303

SHA512
9a2088a25b76c3c064a8d543d027d8a663fcaa0817420da78a13d63019bcca185de5c828556df11d7d782d369ab5710403806dd48f0bc62172279b63d6c11f7a

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/776-62-0x0000000000000000-mapping.dmp

Download
memory/1452-55-0x0000000074690000-0x0000000074C3B000-memory.dmp

Filesize
5.7MB

Download
memory/1452-64-0x0000000074690000-0x0000000074C3B000-memory.dmp

Filesize
5.7MB

Download
memory/1452-54-0x0000000075EF1000-0x0000000075EF3000-memory.dmp

Filesize
8KB

Download
memory/1660-58-0x0000000000000000-mapping.dmp

Download
memory/1660-66-0x0000000074690000-0x0000000074C3B000-memory.dmp

Filesize
5.7MB

Download
memory/1660-67-0x0000000074690000-0x0000000074C3B000-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