njrat | 3634048707083bfcd9ab1f27f0bf0420b261eaaa40ecc9c86ef3758262614b7b

General

Target

3634048707083bfcd9ab1f27f0bf0420b261eaaa40ecc9c86ef3758262614b7b.exe
Size

23KB
MD5

55bc0ba7e8f548de834a7090d6d08ab4
SHA1

93b660785a6e89f98d2ef8f4145e916410e7475f
SHA256

3634048707083bfcd9ab1f27f0bf0420b261eaaa40ecc9c86ef3758262614b7b
SHA512

d569cd8d541639b53fd0ce0724e94bcb137859470a83bcad6dbf142f2d5bd23d741ebdece09bb2c4cf7516c94a2e8c1934bd3bef37b9efb68efbf9eed00932bf

Score

10^/10

njrat thank you for installing! evasion persistence trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

Thank you for installing!

C2

127.0.0.1:1528

Mutex

769d5da68f5544d1b5dd487359601c51

Attributes

reg_key
769d5da68f5544d1b5dd487359601c51
splitter
|'|'|

Signatures

njRAT/Bladabindi
Widely used RAT written in .NET.
trojan njrat
Executes dropped EXE 1 IoCs

Processes:

server.exe

pid process

2044 server.exe
Modifies Windows Firewall 1 TTPs 1 IoCs
evasion

Modify Existing Service
T1031

Processes:

netsh.exe

pid process

1820 netsh.exe

pid	process
2044	server.exe

pid	process
1820	netsh.exe

Drops startup file 2 IoCs

Processes:

server.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\769d5da68f5544d1b5dd487359601c51.exe	server.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\769d5da68f5544d1b5dd487359601c51.exe	server.exe

Loads dropped DLL 1 IoCs

Processes:

3634048707083bfcd9ab1f27f0bf0420b261eaaa40ecc9c86ef3758262614b7b.exe

pid process

940 3634048707083bfcd9ab1f27f0bf0420b261eaaa40ecc9c86ef3758262614b7b.exe

pid	process
940	3634048707083bfcd9ab1f27f0bf0420b261eaaa40ecc9c86ef3758262614b7b.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

server.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Windows\CurrentVersion\Run\769d5da68f5544d1b5dd487359601c51 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .."	server.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\769d5da68f5544d1b5dd487359601c51 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .."	server.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 15 IoCs

Processes:

server.exe

description	pid	process
Token: SeDebugPrivilege	2044	server.exe
Token: 33	2044	server.exe
Token: SeIncBasePriorityPrivilege	2044	server.exe
Token: 33	2044	server.exe
Token: SeIncBasePriorityPrivilege	2044	server.exe
Token: 33	2044	server.exe
Token: SeIncBasePriorityPrivilege	2044	server.exe
Token: 33	2044	server.exe
Token: SeIncBasePriorityPrivilege	2044	server.exe
Token: 33	2044	server.exe
Token: SeIncBasePriorityPrivilege	2044	server.exe
Token: 33	2044	server.exe
Token: SeIncBasePriorityPrivilege	2044	server.exe
Token: 33	2044	server.exe
Token: SeIncBasePriorityPrivilege	2044	server.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

3634048707083bfcd9ab1f27f0bf0420b261eaaa40ecc9c86ef3758262614b7b.exeserver.exe

description	pid	process	target process
PID 940 wrote to memory of 2044	940	3634048707083bfcd9ab1f27f0bf0420b261eaaa40ecc9c86ef3758262614b7b.exe	server.exe
PID 940 wrote to memory of 2044	940	3634048707083bfcd9ab1f27f0bf0420b261eaaa40ecc9c86ef3758262614b7b.exe	server.exe
PID 940 wrote to memory of 2044	940	3634048707083bfcd9ab1f27f0bf0420b261eaaa40ecc9c86ef3758262614b7b.exe	server.exe
PID 940 wrote to memory of 2044	940	3634048707083bfcd9ab1f27f0bf0420b261eaaa40ecc9c86ef3758262614b7b.exe	server.exe
PID 2044 wrote to memory of 1820	2044	server.exe	netsh.exe
PID 2044 wrote to memory of 1820	2044	server.exe	netsh.exe
PID 2044 wrote to memory of 1820	2044	server.exe	netsh.exe
PID 2044 wrote to memory of 1820	2044	server.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\3634048707083bfcd9ab1f27f0bf0420b261eaaa40ecc9c86ef3758262614b7b.exe
"C:\Users\Admin\AppData\Local\Temp\3634048707083bfcd9ab1f27f0bf0420b261eaaa40ecc9c86ef3758262614b7b.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:940

C:\Users\Admin\AppData\Local\Temp\server.exe
"C:\Users\Admin\AppData\Local\Temp\server.exe"
2⤵
- Executes dropped EXE
- Drops startup file
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2044

C:\Windows\SysWOW64\netsh.exe
netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\server.exe" "server.exe" ENABLE
3⤵
- Modifies Windows Firewall
PID:1820

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Modify Existing Service

1

T1031

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\server.exe
Filesize
23KB

MD5
55bc0ba7e8f548de834a7090d6d08ab4

SHA1
93b660785a6e89f98d2ef8f4145e916410e7475f

SHA256
3634048707083bfcd9ab1f27f0bf0420b261eaaa40ecc9c86ef3758262614b7b

SHA512
d569cd8d541639b53fd0ce0724e94bcb137859470a83bcad6dbf142f2d5bd23d741ebdece09bb2c4cf7516c94a2e8c1934bd3bef37b9efb68efbf9eed00932bf

Download Submit
C:\Users\Admin\AppData\Local\Temp\server.exe
Filesize
23KB

MD5
55bc0ba7e8f548de834a7090d6d08ab4

SHA1
93b660785a6e89f98d2ef8f4145e916410e7475f

SHA256
3634048707083bfcd9ab1f27f0bf0420b261eaaa40ecc9c86ef3758262614b7b

SHA512
d569cd8d541639b53fd0ce0724e94bcb137859470a83bcad6dbf142f2d5bd23d741ebdece09bb2c4cf7516c94a2e8c1934bd3bef37b9efb68efbf9eed00932bf

Download Submit
\Users\Admin\AppData\Local\Temp\server.exe
Filesize
23KB

MD5
55bc0ba7e8f548de834a7090d6d08ab4

SHA1
93b660785a6e89f98d2ef8f4145e916410e7475f

SHA256
3634048707083bfcd9ab1f27f0bf0420b261eaaa40ecc9c86ef3758262614b7b

SHA512
d569cd8d541639b53fd0ce0724e94bcb137859470a83bcad6dbf142f2d5bd23d741ebdece09bb2c4cf7516c94a2e8c1934bd3bef37b9efb68efbf9eed00932bf

Download Submit
memory/940-54-0x0000000075941000-0x0000000075943000-memory.dmp

Filesize
8KB

Download
memory/940-55-0x00000000745C0000-0x0000000074B6B000-memory.dmp

Filesize
5.7MB

Download
memory/940-61-0x00000000745C0000-0x0000000074B6B000-memory.dmp

Filesize
5.7MB

Download
memory/1820-63-0x0000000000000000-mapping.dmp

Download
memory/2044-57-0x0000000000000000-mapping.dmp

Download
memory/2044-62-0x00000000745C0000-0x0000000074B6B000-memory.dmp

Filesize
5.7MB

Download
memory/2044-65-0x00000000745C0000-0x0000000074B6B000-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