njrat | b6df3e2662f09e833ed1069cddd625f84c3984c17c29ef8a3a93c7805e0692f0

General

Target

b6df3e2662f09e833ed1069cddd625f84c3984c17c29ef8a3a93c7805e0692f0.exe
Size

300KB
MD5

01270ff6e341bbbce727b7b08c35fbf0
SHA1

049d0466652df9730972ee4351fcaf5f57042f2f
SHA256

b6df3e2662f09e833ed1069cddd625f84c3984c17c29ef8a3a93c7805e0692f0
SHA512

9d87f8f2e7fe25aac9c63528c0f1a4dd36eae0d183756bb85456f1e8aaee855ab603522353fe7446139b1d0f4aa0b46cb4ca96f2b8da724a5bf6abb0d2e09e4c
SSDEEP

1536:vDvE9TzQlzEyQ3FKeh+cMGgdP2WW5MeGD7BKb7+it2SDS29xlqU3u:vDvYgcscId+WWH2cDS29xlqU3u

Score

10^/10

njrat nano discovery evasion persistence privilege_escalation trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

nano

C2

haraga.no-ip.org:5552

Mutex

9685b74638ccc581030bfdb825e77a1e

Attributes

reg_key
9685b74638ccc581030bfdb825e77a1e
splitter
|'|'|

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
3780	netsh.exe

Checks computer location settings 2 TTPs 2 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-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation	b6df3e2662f09e833ed1069cddd625f84c3984c17c29ef8a3a93c7805e0692f0.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation	LocalzCKQfzctlg.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\9685b74638ccc581030bfdb825e77a1e.exe	server.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\9685b74638ccc581030bfdb825e77a1e.exe	server.exe

Executes dropped EXE 4 IoCs

pid	Process
100	LocalzCKQfzctlg.exe
3560	LocalzCKQfzctlg.exe
828	server.exe
3032	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-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\9685b74638ccc581030bfdb825e77a1e = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .."	server.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\9685b74638ccc581030bfdb825e77a1e = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .."	server.exe

Drops autorun.inf file 1 TTPs 3 IoCs

Malware can abuse Windows Autorun to spread further via attached volumes.

Replication Through Removable Media

T1091

description	ioc	Process
File opened for modification	C:\autorun.inf	LocalzCKQfzctlg.exe
File created	C:\autorun.inf	server.exe
File created	C:\autorun.inf	LocalzCKQfzctlg.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 100 set thread context of 3560	100	LocalzCKQfzctlg.exe	83
PID 828 set thread context of 3032	828	server.exe	89

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 queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe

System Location Discovery: System Language Discovery 1 TTPs 5 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	server.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	server.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	LocalzCKQfzctlg.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	LocalzCKQfzctlg.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
100	LocalzCKQfzctlg.exe
100	LocalzCKQfzctlg.exe
100	LocalzCKQfzctlg.exe
828	server.exe
828	server.exe
828	server.exe

Suspicious use of AdjustPrivilegeToken 29 IoCs

description	pid	Process
Token: SeDebugPrivilege	100	LocalzCKQfzctlg.exe
Token: SeDebugPrivilege	828	server.exe
Token: SeDebugPrivilege	3032	server.exe
Token: 33	3032	server.exe
Token: SeIncBasePriorityPrivilege	3032	server.exe
Token: 33	3032	server.exe
Token: SeIncBasePriorityPrivilege	3032	server.exe
Token: 33	3032	server.exe
Token: SeIncBasePriorityPrivilege	3032	server.exe
Token: 33	3032	server.exe
Token: SeIncBasePriorityPrivilege	3032	server.exe
Token: 33	3032	server.exe
Token: SeIncBasePriorityPrivilege	3032	server.exe
Token: 33	3032	server.exe
Token: SeIncBasePriorityPrivilege	3032	server.exe
Token: 33	3032	server.exe
Token: SeIncBasePriorityPrivilege	3032	server.exe
Token: 33	3032	server.exe
Token: SeIncBasePriorityPrivilege	3032	server.exe
Token: 33	3032	server.exe
Token: SeIncBasePriorityPrivilege	3032	server.exe
Token: 33	3032	server.exe
Token: SeIncBasePriorityPrivilege	3032	server.exe
Token: 33	3032	server.exe
Token: SeIncBasePriorityPrivilege	3032	server.exe
Token: 33	3032	server.exe
Token: SeIncBasePriorityPrivilege	3032	server.exe
Token: 33	3032	server.exe
Token: SeIncBasePriorityPrivilege	3032	server.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 4380 wrote to memory of 100	4380	b6df3e2662f09e833ed1069cddd625f84c3984c17c29ef8a3a93c7805e0692f0.exe	82
PID 4380 wrote to memory of 100	4380	b6df3e2662f09e833ed1069cddd625f84c3984c17c29ef8a3a93c7805e0692f0.exe	82
PID 4380 wrote to memory of 100	4380	b6df3e2662f09e833ed1069cddd625f84c3984c17c29ef8a3a93c7805e0692f0.exe	82
PID 100 wrote to memory of 3560	100	LocalzCKQfzctlg.exe	83
PID 100 wrote to memory of 3560	100	LocalzCKQfzctlg.exe	83
PID 100 wrote to memory of 3560	100	LocalzCKQfzctlg.exe	83
PID 100 wrote to memory of 3560	100	LocalzCKQfzctlg.exe	83
PID 100 wrote to memory of 3560	100	LocalzCKQfzctlg.exe	83
PID 3560 wrote to memory of 828	3560	LocalzCKQfzctlg.exe	87
PID 3560 wrote to memory of 828	3560	LocalzCKQfzctlg.exe	87
PID 3560 wrote to memory of 828	3560	LocalzCKQfzctlg.exe	87
PID 828 wrote to memory of 3032	828	server.exe	89
PID 828 wrote to memory of 3032	828	server.exe	89
PID 828 wrote to memory of 3032	828	server.exe	89
PID 828 wrote to memory of 3032	828	server.exe	89
PID 828 wrote to memory of 3032	828	server.exe	89
PID 3032 wrote to memory of 3780	3032	server.exe	93
PID 3032 wrote to memory of 3780	3032	server.exe	93
PID 3032 wrote to memory of 3780	3032	server.exe	93

C:\Users\Admin\AppData\Local\Temp\b6df3e2662f09e833ed1069cddd625f84c3984c17c29ef8a3a93c7805e0692f0.exe
"C:\Users\Admin\AppData\Local\Temp\b6df3e2662f09e833ed1069cddd625f84c3984c17c29ef8a3a93c7805e0692f0.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4380
- C:\Users\Admin\AppData\LocalzCKQfzctlg.exe
  "C:\Users\Admin\AppData\LocalzCKQfzctlg.exe"
  2⤵
  - Executes dropped EXE
  - Drops autorun.inf file
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:100
- - C:\Users\Admin\AppData\LocalzCKQfzctlg.exe
    C:\Users\Admin\AppData\LocalzCKQfzctlg.exe
    3⤵
    - Checks computer location settings
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:3560
  - - C:\Users\Admin\AppData\Local\Temp\server.exe
      "C:\Users\Admin\AppData\Local\Temp\server.exe"
      4⤵
      Executes dropped EXE
      Drops autorun.inf file
      Suspicious use of SetThreadContext
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of WriteProcessMemory
      PID:828
    - - C:\Users\Admin\AppData\Local\Temp\server.exe
        
        C:\Users\Admin\AppData\Local\Temp\server.exe
        5⤵
        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:3032
      - C:\Windows\SysWOW64\netsh.exe
        
        netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\server.exe" "server.exe" ENABLE
        6⤵
        Modifies Windows Firewall
        Event Triggered Execution: Netsh Helper DLL
        System Location Discovery: System Language Discovery
        
        PID:3780

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Replication Through Removable Media

1

T1091

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

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Replication Through Removable Media

1

T1091

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\LocalzCKQfzctlg.exe.log

Filesize
1KB

MD5
538ee74ddfcbf924e2e47b9f864fe78b

SHA1
756a1099bd4a2717ffc54b4dcf1b99920efd478c

SHA256
6179c371394293f2727d88f13b2b56d58c92a0188880c1b32a1c7f9bc92b5073

SHA512
0fdaf79a972b70a70559bb3a74513e2c76de2d48629df491d5a5a61de8547cd2bffc7acff332105ce8acc72cf49cc86bb2bea4191dc92cc14b6d0914e3654952

Download Submit
C:\Users\Admin\AppData\LocalzCKQfzctlg.exe

Filesize
242KB

MD5
433ae07b66bf4e2dfe0c17044f07cd0d

SHA1
eef7146234aa72a8129319d4244dbe7ac95ea58c

SHA256
643290b2148f53b035be768bac88429db0a326faef5fe8420f12e754470a0e18

SHA512
d2e47855fc7f88b77019c8cebd32e119624147ea410fc798cd75a3ae82e8d11a5585eedf6ea44dac4fff0e3a5dd06375082e65708d75dc6d9604e0f0d596b009

Download Submit
memory/100-22-0x0000000004D80000-0x0000000004D8A000-memory.dmp

Filesize
40KB

Download
memory/100-39-0x0000000075330000-0x0000000075AE0000-memory.dmp

Filesize
7.7MB

Download
memory/100-50-0x0000000075330000-0x0000000075AE0000-memory.dmp

Filesize
7.7MB

Download
memory/100-17-0x000000007533E000-0x000000007533F000-memory.dmp

Filesize
4KB

Download
memory/100-18-0x0000000000480000-0x00000000004C2000-memory.dmp

Filesize
264KB

Download
memory/100-19-0x0000000005370000-0x0000000005914000-memory.dmp

Filesize
5.6MB

Download
memory/100-20-0x0000000004DC0000-0x0000000004E52000-memory.dmp

Filesize
584KB

Download
memory/100-21-0x0000000075330000-0x0000000075AE0000-memory.dmp

Filesize
7.7MB

Download
memory/100-48-0x0000000008820000-0x0000000008838000-memory.dmp

Filesize
96KB

Download
memory/100-23-0x0000000006430000-0x00000000064CC000-memory.dmp

Filesize
624KB

Download
memory/100-24-0x0000000005100000-0x000000000510A000-memory.dmp

Filesize
40KB

Download
memory/100-42-0x0000000075330000-0x0000000075AE0000-memory.dmp

Filesize
7.7MB

Download
memory/100-41-0x0000000075330000-0x0000000075AE0000-memory.dmp

Filesize
7.7MB

Download
memory/100-40-0x0000000075330000-0x0000000075AE0000-memory.dmp

Filesize
7.7MB

Download
memory/3560-36-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/3560-43-0x0000000075330000-0x0000000075AE0000-memory.dmp

Filesize
7.7MB

Download
memory/3560-63-0x0000000075330000-0x0000000075AE0000-memory.dmp

Filesize
7.7MB

Download
memory/4380-3-0x00007FFC2E490000-0x00007FFC2EE31000-memory.dmp

Filesize
9.6MB

Download
memory/4380-0-0x00007FFC2E745000-0x00007FFC2E746000-memory.dmp

Filesize
4KB

Download
memory/4380-16-0x00007FFC2E490000-0x00007FFC2EE31000-memory.dmp

Filesize
9.6MB

Download
memory/4380-1-0x00007FFC2E490000-0x00007FFC2EE31000-memory.dmp

Filesize
9.6MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads