njrat | d31468f4f668dcfc7630378ea31a4b2a724f924a7da87fa07738da8308aee2e2

General

Target

d31468f4f668dcfc7630378ea31a4b2a724f924a7da87fa07738da8308aee2e2N.exe
Size

2.5MB
MD5

2ca9585c7d3554321723cfab60ade3c0
SHA1

62b0a7357607fb7266fb69db4525868cebad74ce
SHA256

d31468f4f668dcfc7630378ea31a4b2a724f924a7da87fa07738da8308aee2e2
SHA512

1e069595a79b6305c5656c3ce5ae856ca9f22ebce86dc5bb411d9ced1fc5c5b36c9f170d2133e4e43adfbe469a6f5d3687767aeb28af22faba430f93bc5bc4d9
SSDEEP

49152:C8botmhl9Dd/byTKv0hwxetvSWNv/cL85m:P

Score

10^/10

njrat user discovery evasion persistence privilege_escalation trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

user

C2

windowssistem.duckdns.org:5020

Mutex

cff070eafb77e420cce40ff9e3f8a491

Attributes

reg_key
cff070eafb77e420cce40ff9e3f8a491
splitter
|'|'|

Signatures

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
588	netsh.exe

Drops startup file 2 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\cff070eafb77e420cce40ff9e3f8a491.exe	windows.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\cff070eafb77e420cce40ff9e3f8a491.exe	windows.exe

Executes dropped EXE 3 IoCs

pid	Process
2644	Server.exe
2812	Re-Loader.exe
604	windows.exe

Loads dropped DLL 3 IoCs

pid	Process
2692	d31468f4f668dcfc7630378ea31a4b2a724f924a7da87fa07738da8308aee2e2N.exe
2692	d31468f4f668dcfc7630378ea31a4b2a724f924a7da87fa07738da8308aee2e2N.exe
2644	Server.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-1-5-21-312935884-697965778-3955649944-1000\Software\Microsoft\Windows\CurrentVersion\Run\cff070eafb77e420cce40ff9e3f8a491 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\windows.exe\" .."	windows.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\cff070eafb77e420cce40ff9e3f8a491 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\windows.exe\" .."	windows.exe

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012
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 value enumerated	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe

System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d31468f4f668dcfc7630378ea31a4b2a724f924a7da87fa07738da8308aee2e2N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Server.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	windows.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2812	Re-Loader.exe
2812	Re-Loader.exe
2812	Re-Loader.exe
2812	Re-Loader.exe

Suspicious use of AdjustPrivilegeToken 29 IoCs

description	pid	Process
Token: SeDebugPrivilege	2692	d31468f4f668dcfc7630378ea31a4b2a724f924a7da87fa07738da8308aee2e2N.exe
Token: SeDebugPrivilege	2812	Re-Loader.exe
Token: SeDebugPrivilege	604	windows.exe
Token: 33	604	windows.exe
Token: SeIncBasePriorityPrivilege	604	windows.exe
Token: 33	604	windows.exe
Token: SeIncBasePriorityPrivilege	604	windows.exe
Token: 33	604	windows.exe
Token: SeIncBasePriorityPrivilege	604	windows.exe
Token: 33	604	windows.exe
Token: SeIncBasePriorityPrivilege	604	windows.exe
Token: 33	604	windows.exe
Token: SeIncBasePriorityPrivilege	604	windows.exe
Token: 33	604	windows.exe
Token: SeIncBasePriorityPrivilege	604	windows.exe
Token: 33	604	windows.exe
Token: SeIncBasePriorityPrivilege	604	windows.exe
Token: 33	604	windows.exe
Token: SeIncBasePriorityPrivilege	604	windows.exe
Token: 33	604	windows.exe
Token: SeIncBasePriorityPrivilege	604	windows.exe
Token: 33	604	windows.exe
Token: SeIncBasePriorityPrivilege	604	windows.exe
Token: 33	604	windows.exe
Token: SeIncBasePriorityPrivilege	604	windows.exe
Token: 33	604	windows.exe
Token: SeIncBasePriorityPrivilege	604	windows.exe
Token: 33	604	windows.exe
Token: SeIncBasePriorityPrivilege	604	windows.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 2692 wrote to memory of 2644	2692	d31468f4f668dcfc7630378ea31a4b2a724f924a7da87fa07738da8308aee2e2N.exe	28
PID 2692 wrote to memory of 2644	2692	d31468f4f668dcfc7630378ea31a4b2a724f924a7da87fa07738da8308aee2e2N.exe	28
PID 2692 wrote to memory of 2644	2692	d31468f4f668dcfc7630378ea31a4b2a724f924a7da87fa07738da8308aee2e2N.exe	28
PID 2692 wrote to memory of 2644	2692	d31468f4f668dcfc7630378ea31a4b2a724f924a7da87fa07738da8308aee2e2N.exe	28
PID 2692 wrote to memory of 2812	2692	d31468f4f668dcfc7630378ea31a4b2a724f924a7da87fa07738da8308aee2e2N.exe	29
PID 2692 wrote to memory of 2812	2692	d31468f4f668dcfc7630378ea31a4b2a724f924a7da87fa07738da8308aee2e2N.exe	29
PID 2692 wrote to memory of 2812	2692	d31468f4f668dcfc7630378ea31a4b2a724f924a7da87fa07738da8308aee2e2N.exe	29
PID 2692 wrote to memory of 2812	2692	d31468f4f668dcfc7630378ea31a4b2a724f924a7da87fa07738da8308aee2e2N.exe	29
PID 2644 wrote to memory of 604	2644	Server.exe	33
PID 2644 wrote to memory of 604	2644	Server.exe	33
PID 2644 wrote to memory of 604	2644	Server.exe	33
PID 2644 wrote to memory of 604	2644	Server.exe	33
PID 604 wrote to memory of 588	604	windows.exe	34
PID 604 wrote to memory of 588	604	windows.exe	34
PID 604 wrote to memory of 588	604	windows.exe	34
PID 604 wrote to memory of 588	604	windows.exe	34

C:\Users\Admin\AppData\Local\Temp\d31468f4f668dcfc7630378ea31a4b2a724f924a7da87fa07738da8308aee2e2N.exe
"C:\Users\Admin\AppData\Local\Temp\d31468f4f668dcfc7630378ea31a4b2a724f924a7da87fa07738da8308aee2e2N.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2692
- C:\Users\Admin\AppData\Local\Temp\Server.exe
  "C:\Users\Admin\AppData\Local\Temp\Server.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2644
- - C:\Users\Admin\AppData\Local\Temp\windows.exe
    "C:\Users\Admin\AppData\Local\Temp\windows.exe"
    3⤵
    - Drops startup file
    - Executes dropped EXE
    - Adds Run key to start application
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:604
  - - C:\Windows\SysWOW64\netsh.exe
      netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\windows.exe" "windows.exe" ENABLE
      4⤵
      Modifies Windows Firewall
      Event Triggered Execution: Netsh Helper DLL
      System Location Discovery: System Language Discovery
      PID:588
- C:\Users\Admin\AppData\Local\Temp\Re-Loader.exe
  "C:\Users\Admin\AppData\Local\Temp\Re-Loader.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2812

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

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

\Users\Admin\AppData\Local\Temp\Re-Loader.exe

Filesize
1.8MB

MD5
e20c29c40d33434e9054dfde933f54d6

SHA1
8214cf3808c45150cccad5eb12ff74f3393d316a

SHA256
e3e8020add3e306307ecdf6f83900ef411f08241e332faeff555ba8b2003cbf4

SHA512
a6f2a1a385908dae53189e1866fd102a142c860b60db595695c9c502948f315679afc402203181807d065ce4c9febf74cdbe6d58fcef63080370fad566b619c3

Download Submit
\Users\Admin\AppData\Local\Temp\Server.exe

Filesize
23KB

MD5
4078c5e6d1a746f0659b54fae5745510

SHA1
2468153b9107b6b8fa1a077f6d30082e66084b4a

SHA256
b27c09b124308ccac9fe09314acccce3832e80c3a08ce067b0bc798609ea367f

SHA512
467b12d5f42dc2bbc5bd46b590c85bbab18cb1a75d97e0991352d4e17199ade8372c694d83135cee927f4addb967e2ee96d5df233b6e04567a218d426b0bf41b

Download Submit
memory/2644-17-0x0000000000C50000-0x0000000000C90000-memory.dmp

Filesize
256KB

Download
memory/2692-0-0x000000007447E000-0x000000007447F000-memory.dmp

Filesize
4KB

Download
memory/2692-1-0x0000000000170000-0x0000000000184000-memory.dmp

Filesize
80KB

Download
memory/2692-2-0x0000000074470000-0x0000000074B5E000-memory.dmp

Filesize
6.9MB

Download
memory/2692-16-0x0000000074470000-0x0000000074B5E000-memory.dmp

Filesize
6.9MB

Download
memory/2812-18-0x0000000000D90000-0x0000000000DA0000-memory.dmp

Filesize
64KB

Download
memory/2812-19-0x000000001AC40000-0x000000001AEE4000-memory.dmp

Filesize
2.6MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads