njrat | bd33e8551fd1f2160b5579bb3bbeac5cbc5b85eeb3fc33094dbac8675019d763

General

Target

bd33e8551fd1f2160b5579bb3bbeac5cbc5b85eeb3fc33094dbac8675019d763.exe
Size

23KB
MD5

734a72fa06938e7beaed1e07c1508e20
SHA1

842062e2130b3a7cfa97124a9a18f6b35ffbdac5
SHA256

bd33e8551fd1f2160b5579bb3bbeac5cbc5b85eeb3fc33094dbac8675019d763
SHA512

3e215b2be4434317ca49f1d62fb3bf4bca3ed41aeca1c67bd94dc43a39e47af3263277da5f8ff67641fc8aa8e5e95ff0c5c4be6239da5d333f691693bc38d517
SSDEEP

384:U8aLWS0dABLYVq6RxP8MDFF09vK563gRMmJKUv0mRvR6JZlbw8hqIusZzZCF:zXcwt3tRpcnuV

Score

10^/10

njrat hacked evasion persistence trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

HacKed

C2

127.0.0.1:1337

Mutex

5f76cab4062f3ff0306d0a613b00c588

Attributes

reg_key
5f76cab4062f3ff0306d0a613b00c588
splitter
|'|'|

Signatures

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

Processes:

server.exe

pid process

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

Modify Existing Service
T1031

Processes:

netsh.exe

pid process

1364 netsh.exe

pid	process
632	server.exe

pid	process
1364	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\5f76cab4062f3ff0306d0a613b00c588.exe	server.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\5f76cab4062f3ff0306d0a613b00c588.exe	server.exe

Loads dropped DLL 1 IoCs

Processes:

bd33e8551fd1f2160b5579bb3bbeac5cbc5b85eeb3fc33094dbac8675019d763.exe

pid process

756 bd33e8551fd1f2160b5579bb3bbeac5cbc5b85eeb3fc33094dbac8675019d763.exe

pid	process
756	bd33e8551fd1f2160b5579bb3bbeac5cbc5b85eeb3fc33094dbac8675019d763.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-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\5f76cab4062f3ff0306d0a613b00c588 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .."	server.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\5f76cab4062f3ff0306d0a613b00c588 = "\"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 19 IoCs

Processes:

server.exe

description	pid	process
Token: SeDebugPrivilege	632	server.exe
Token: 33	632	server.exe
Token: SeIncBasePriorityPrivilege	632	server.exe
Token: 33	632	server.exe
Token: SeIncBasePriorityPrivilege	632	server.exe
Token: 33	632	server.exe
Token: SeIncBasePriorityPrivilege	632	server.exe
Token: 33	632	server.exe
Token: SeIncBasePriorityPrivilege	632	server.exe
Token: 33	632	server.exe
Token: SeIncBasePriorityPrivilege	632	server.exe
Token: 33	632	server.exe
Token: SeIncBasePriorityPrivilege	632	server.exe
Token: 33	632	server.exe
Token: SeIncBasePriorityPrivilege	632	server.exe
Token: 33	632	server.exe
Token: SeIncBasePriorityPrivilege	632	server.exe
Token: 33	632	server.exe
Token: SeIncBasePriorityPrivilege	632	server.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

bd33e8551fd1f2160b5579bb3bbeac5cbc5b85eeb3fc33094dbac8675019d763.exeserver.exe

description	pid	process	target process
PID 756 wrote to memory of 632	756	bd33e8551fd1f2160b5579bb3bbeac5cbc5b85eeb3fc33094dbac8675019d763.exe	server.exe
PID 756 wrote to memory of 632	756	bd33e8551fd1f2160b5579bb3bbeac5cbc5b85eeb3fc33094dbac8675019d763.exe	server.exe
PID 756 wrote to memory of 632	756	bd33e8551fd1f2160b5579bb3bbeac5cbc5b85eeb3fc33094dbac8675019d763.exe	server.exe
PID 756 wrote to memory of 632	756	bd33e8551fd1f2160b5579bb3bbeac5cbc5b85eeb3fc33094dbac8675019d763.exe	server.exe
PID 632 wrote to memory of 1364	632	server.exe	netsh.exe
PID 632 wrote to memory of 1364	632	server.exe	netsh.exe
PID 632 wrote to memory of 1364	632	server.exe	netsh.exe
PID 632 wrote to memory of 1364	632	server.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\bd33e8551fd1f2160b5579bb3bbeac5cbc5b85eeb3fc33094dbac8675019d763.exe
"C:\Users\Admin\AppData\Local\Temp\bd33e8551fd1f2160b5579bb3bbeac5cbc5b85eeb3fc33094dbac8675019d763.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:756

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:632

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:1364

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

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Downloads

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

MD5
734a72fa06938e7beaed1e07c1508e20

SHA1
842062e2130b3a7cfa97124a9a18f6b35ffbdac5

SHA256
bd33e8551fd1f2160b5579bb3bbeac5cbc5b85eeb3fc33094dbac8675019d763

SHA512
3e215b2be4434317ca49f1d62fb3bf4bca3ed41aeca1c67bd94dc43a39e47af3263277da5f8ff67641fc8aa8e5e95ff0c5c4be6239da5d333f691693bc38d517

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

MD5
734a72fa06938e7beaed1e07c1508e20

SHA1
842062e2130b3a7cfa97124a9a18f6b35ffbdac5

SHA256
bd33e8551fd1f2160b5579bb3bbeac5cbc5b85eeb3fc33094dbac8675019d763

SHA512
3e215b2be4434317ca49f1d62fb3bf4bca3ed41aeca1c67bd94dc43a39e47af3263277da5f8ff67641fc8aa8e5e95ff0c5c4be6239da5d333f691693bc38d517

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

MD5
734a72fa06938e7beaed1e07c1508e20

SHA1
842062e2130b3a7cfa97124a9a18f6b35ffbdac5

SHA256
bd33e8551fd1f2160b5579bb3bbeac5cbc5b85eeb3fc33094dbac8675019d763

SHA512
3e215b2be4434317ca49f1d62fb3bf4bca3ed41aeca1c67bd94dc43a39e47af3263277da5f8ff67641fc8aa8e5e95ff0c5c4be6239da5d333f691693bc38d517

Download Submit
memory/632-57-0x0000000000000000-mapping.dmp

Download
memory/632-62-0x0000000074CE0000-0x000000007528B000-memory.dmp

Filesize
5.7MB

Download
memory/632-65-0x0000000074CE0000-0x000000007528B000-memory.dmp

Filesize
5.7MB

Download
memory/756-54-0x0000000075831000-0x0000000075833000-memory.dmp

Filesize
8KB

Download
memory/756-55-0x0000000074CE0000-0x000000007528B000-memory.dmp

Filesize
5.7MB

Download
memory/756-61-0x0000000074CE0000-0x000000007528B000-memory.dmp

Filesize
5.7MB

Download
memory/1364-63-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads