njrat | 36a5c20b333ff27185cf9e555daefd2055c18246a92dc44bd75a30b73e70aa49

General

Target

36a5c20b333ff27185cf9e555daefd2055c18246a92dc44bd75a30b73e70aa49N.exe
Size

524KB
MD5

ebe1803f8f2b4be01f91000214e71260
SHA1

53669e850f9d5a93739f9dffd1719ab88951094d
SHA256

36a5c20b333ff27185cf9e555daefd2055c18246a92dc44bd75a30b73e70aa49
SHA512

dfac3f34ec42be279d6a6249bc653a024cd3a5c2a8ebbd5dea1ef22b28b91e312d87c7bbb514d50e1e1ecd29a199b4218f3b4b22a18d124d24006de21dc139b7
SSDEEP

6144:vBjKtt8sieagnL5eVhPVm+hNr+FT56xnTWyl4BK7RBm26jyzaJ/34B26CX2//GK4:vd2t8QagVeLPVlhNq156lIEg6ZCX2//

Score

10^/10

njrat evasion persistence privilege_escalation trojan

Malware Config

Signatures

Njrat family
njrat
njRAT/Bladabindi
Widely used RAT written in .NET.
trojan njrat

Modifies Windows Firewall 2 TTPs 1 IoCs

evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
2380	netsh.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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation	36a5c20b333ff27185cf9e555daefd2055c18246a92dc44bd75a30b73e70aa49N.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\62d1b41e3c9d1786634c63165669b7a9.exe	system32.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\62d1b41e3c9d1786634c63165669b7a9.exe	system32.exe

Executes dropped EXE 1 IoCs

pid	Process
728	system32.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\62d1b41e3c9d1786634c63165669b7a9 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\system32.exe\" .."	system32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\62d1b41e3c9d1786634c63165669b7a9 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\system32.exe\" .."	system32.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Event Triggered Execution: Netsh Helper DLL 1 TTPs 3 IoCs

Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

persistence privilege_escalation

Netsh Helper DLL

T1546.007

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh	netsh.exe

Suspicious behavior: EnumeratesProcesses 12 IoCs

pid	Process
4784	36a5c20b333ff27185cf9e555daefd2055c18246a92dc44bd75a30b73e70aa49N.exe
728	system32.exe
728	system32.exe
728	system32.exe
728	system32.exe
728	system32.exe
728	system32.exe
728	system32.exe
728	system32.exe
728	system32.exe
728	system32.exe
728	system32.exe

Suspicious use of AdjustPrivilegeToken 28 IoCs

description	pid	Process
Token: SeDebugPrivilege	4784	36a5c20b333ff27185cf9e555daefd2055c18246a92dc44bd75a30b73e70aa49N.exe
Token: SeDebugPrivilege	728	system32.exe
Token: 33	728	system32.exe
Token: SeIncBasePriorityPrivilege	728	system32.exe
Token: 33	728	system32.exe
Token: SeIncBasePriorityPrivilege	728	system32.exe
Token: 33	728	system32.exe
Token: SeIncBasePriorityPrivilege	728	system32.exe
Token: 33	728	system32.exe
Token: SeIncBasePriorityPrivilege	728	system32.exe
Token: 33	728	system32.exe
Token: SeIncBasePriorityPrivilege	728	system32.exe
Token: 33	728	system32.exe
Token: SeIncBasePriorityPrivilege	728	system32.exe
Token: 33	728	system32.exe
Token: SeIncBasePriorityPrivilege	728	system32.exe
Token: 33	728	system32.exe
Token: SeIncBasePriorityPrivilege	728	system32.exe
Token: 33	728	system32.exe
Token: SeIncBasePriorityPrivilege	728	system32.exe
Token: 33	728	system32.exe
Token: SeIncBasePriorityPrivilege	728	system32.exe
Token: 33	728	system32.exe
Token: SeIncBasePriorityPrivilege	728	system32.exe
Token: 33	728	system32.exe
Token: SeIncBasePriorityPrivilege	728	system32.exe
Token: 33	728	system32.exe
Token: SeIncBasePriorityPrivilege	728	system32.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 4784 wrote to memory of 728	4784	36a5c20b333ff27185cf9e555daefd2055c18246a92dc44bd75a30b73e70aa49N.exe	84
PID 4784 wrote to memory of 728	4784	36a5c20b333ff27185cf9e555daefd2055c18246a92dc44bd75a30b73e70aa49N.exe	84
PID 728 wrote to memory of 2380	728	system32.exe	94
PID 728 wrote to memory of 2380	728	system32.exe	94

C:\Users\Admin\AppData\Local\Temp\36a5c20b333ff27185cf9e555daefd2055c18246a92dc44bd75a30b73e70aa49N.exe
"C:\Users\Admin\AppData\Local\Temp\36a5c20b333ff27185cf9e555daefd2055c18246a92dc44bd75a30b73e70aa49N.exe"
1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4784
- C:\Users\Admin\AppData\Local\Temp\system32.exe
  "C:\Users\Admin\AppData\Local\Temp\system32.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:728
- - C:\Windows\SYSTEM32\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\system32.exe" "system32.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    PID:2380

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Defense Evasion

Impair Defenses

1

T1562

Disable or Modify System Firewall

Modify Registry

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\system32.exe

Filesize
524KB

MD5
ebe1803f8f2b4be01f91000214e71260

SHA1
53669e850f9d5a93739f9dffd1719ab88951094d

SHA256
36a5c20b333ff27185cf9e555daefd2055c18246a92dc44bd75a30b73e70aa49

SHA512
dfac3f34ec42be279d6a6249bc653a024cd3a5c2a8ebbd5dea1ef22b28b91e312d87c7bbb514d50e1e1ecd29a199b4218f3b4b22a18d124d24006de21dc139b7

Download Submit
memory/728-33-0x00007FF8A8690000-0x00007FF8A9031000-memory.dmp

Filesize
9.6MB

Download
memory/728-32-0x00007FF8A8690000-0x00007FF8A9031000-memory.dmp

Filesize
9.6MB

Download
memory/728-31-0x00000000008F0000-0x00000000008F8000-memory.dmp

Filesize
32KB

Download
memory/728-30-0x000000001C700000-0x000000001C79C000-memory.dmp

Filesize
624KB

Download
memory/728-28-0x00007FF8A8690000-0x00007FF8A9031000-memory.dmp

Filesize
9.6MB

Download
memory/728-27-0x000000001C0C0000-0x000000001C136000-memory.dmp

Filesize
472KB

Download
memory/728-26-0x00007FF8A8690000-0x00007FF8A9031000-memory.dmp

Filesize
9.6MB

Download
memory/728-24-0x00007FF8A8690000-0x00007FF8A9031000-memory.dmp

Filesize
9.6MB

Download
memory/728-22-0x00007FF8A8690000-0x00007FF8A9031000-memory.dmp

Filesize
9.6MB

Download
memory/4784-5-0x000000001D040000-0x000000001D0B6000-memory.dmp

Filesize
472KB

Download
memory/4784-10-0x00007FF8A8945000-0x00007FF8A8946000-memory.dmp

Filesize
4KB

Download
memory/4784-9-0x00007FF8A8690000-0x00007FF8A9031000-memory.dmp

Filesize
9.6MB

Download
memory/4784-25-0x00007FF8A8690000-0x00007FF8A9031000-memory.dmp

Filesize
9.6MB

Download
memory/4784-8-0x00007FF8A8690000-0x00007FF8A9031000-memory.dmp

Filesize
9.6MB

Download
memory/4784-7-0x000000001D480000-0x000000001D526000-memory.dmp

Filesize
664KB

Download
memory/4784-6-0x000000001D340000-0x000000001D3D0000-memory.dmp

Filesize
576KB

Download
memory/4784-0-0x00007FF8A8945000-0x00007FF8A8946000-memory.dmp

Filesize
4KB

Download
memory/4784-4-0x000000001C610000-0x000000001CADE000-memory.dmp

Filesize
4.8MB

Download
memory/4784-3-0x00007FF8A8690000-0x00007FF8A9031000-memory.dmp

Filesize
9.6MB

Download
memory/4784-2-0x00007FF8A8690000-0x00007FF8A9031000-memory.dmp

Filesize
9.6MB

Download
memory/4784-1-0x000000001C000000-0x000000001C136000-memory.dmp

Filesize
1.2MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads