njrat | 40efde16d08059a99d43c80e67e7c76c51893186aac36f091da2ece9eecceb58

General

Target

40efde16d08059a99d43c80e67e7c76c51893186aac36f091da2ece9eecceb58N.exe
Size

980KB
MD5

9d39a28d4969df4949cebc75f03554c0
SHA1

1e3230a54a084e8558c648a66b23f868e7c1276f
SHA256

40efde16d08059a99d43c80e67e7c76c51893186aac36f091da2ece9eecceb58
SHA512

4b3c4e6b50a28e8352db4ffacdb865ed1ff219c224d40db3076c796ca4cd83c1e9cd35151a1473c2e72bd172ca0bc0f7e43282cb63f12e9199d4641ff9a2c847
SSDEEP

12288:x2LaKaEt0ymu5M2kqChPAxzlO50IoPWEu/8+l89R6WvEVr4aQxU:xdnuahPS5nxTRdvEVr47

Score

10^/10

njrat hacked discovery evasion persistence privilege_escalation trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

HacKed

C2

127.0.0.1:5552

Mutex

279f6960ed84a752570aca7fb2dc1552

Attributes

reg_key
279f6960ed84a752570aca7fb2dc1552
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
1156	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-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation	40efde16d08059a99d43c80e67e7c76c51893186aac36f091da2ece9eecceb58N.exe

Executes dropped EXE 2 IoCs

pid	Process
2992	server.exe
3412	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-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\279f6960ed84a752570aca7fb2dc1552 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .."	server.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\279f6960ed84a752570aca7fb2dc1552 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .."	server.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 4580 set thread context of 5116	4580	40efde16d08059a99d43c80e67e7c76c51893186aac36f091da2ece9eecceb58N.exe	83
PID 2992 set thread context of 3412	2992	server.exe	88

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\WOW6432Node\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	40efde16d08059a99d43c80e67e7c76c51893186aac36f091da2ece9eecceb58N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	40efde16d08059a99d43c80e67e7c76c51893186aac36f091da2ece9eecceb58N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	server.exe

Suspicious use of AdjustPrivilegeToken 29 IoCs

description	pid	Process
Token: SeDebugPrivilege	4580	40efde16d08059a99d43c80e67e7c76c51893186aac36f091da2ece9eecceb58N.exe
Token: SeDebugPrivilege	2992	server.exe
Token: SeDebugPrivilege	3412	server.exe
Token: 33	3412	server.exe
Token: SeIncBasePriorityPrivilege	3412	server.exe
Token: 33	3412	server.exe
Token: SeIncBasePriorityPrivilege	3412	server.exe
Token: 33	3412	server.exe
Token: SeIncBasePriorityPrivilege	3412	server.exe
Token: 33	3412	server.exe
Token: SeIncBasePriorityPrivilege	3412	server.exe
Token: 33	3412	server.exe
Token: SeIncBasePriorityPrivilege	3412	server.exe
Token: 33	3412	server.exe
Token: SeIncBasePriorityPrivilege	3412	server.exe
Token: 33	3412	server.exe
Token: SeIncBasePriorityPrivilege	3412	server.exe
Token: 33	3412	server.exe
Token: SeIncBasePriorityPrivilege	3412	server.exe
Token: 33	3412	server.exe
Token: SeIncBasePriorityPrivilege	3412	server.exe
Token: 33	3412	server.exe
Token: SeIncBasePriorityPrivilege	3412	server.exe
Token: 33	3412	server.exe
Token: SeIncBasePriorityPrivilege	3412	server.exe
Token: 33	3412	server.exe
Token: SeIncBasePriorityPrivilege	3412	server.exe
Token: 33	3412	server.exe
Token: SeIncBasePriorityPrivilege	3412	server.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 4580 wrote to memory of 5116	4580	40efde16d08059a99d43c80e67e7c76c51893186aac36f091da2ece9eecceb58N.exe	83
PID 4580 wrote to memory of 5116	4580	40efde16d08059a99d43c80e67e7c76c51893186aac36f091da2ece9eecceb58N.exe	83
PID 4580 wrote to memory of 5116	4580	40efde16d08059a99d43c80e67e7c76c51893186aac36f091da2ece9eecceb58N.exe	83
PID 4580 wrote to memory of 5116	4580	40efde16d08059a99d43c80e67e7c76c51893186aac36f091da2ece9eecceb58N.exe	83
PID 4580 wrote to memory of 5116	4580	40efde16d08059a99d43c80e67e7c76c51893186aac36f091da2ece9eecceb58N.exe	83
PID 5116 wrote to memory of 2992	5116	40efde16d08059a99d43c80e67e7c76c51893186aac36f091da2ece9eecceb58N.exe	85
PID 5116 wrote to memory of 2992	5116	40efde16d08059a99d43c80e67e7c76c51893186aac36f091da2ece9eecceb58N.exe	85
PID 5116 wrote to memory of 2992	5116	40efde16d08059a99d43c80e67e7c76c51893186aac36f091da2ece9eecceb58N.exe	85
PID 2992 wrote to memory of 3412	2992	server.exe	88
PID 2992 wrote to memory of 3412	2992	server.exe	88
PID 2992 wrote to memory of 3412	2992	server.exe	88
PID 2992 wrote to memory of 3412	2992	server.exe	88
PID 2992 wrote to memory of 3412	2992	server.exe	88
PID 3412 wrote to memory of 1156	3412	server.exe	96
PID 3412 wrote to memory of 1156	3412	server.exe	96
PID 3412 wrote to memory of 1156	3412	server.exe	96

C:\Users\Admin\AppData\Local\Temp\40efde16d08059a99d43c80e67e7c76c51893186aac36f091da2ece9eecceb58N.exe
"C:\Users\Admin\AppData\Local\Temp\40efde16d08059a99d43c80e67e7c76c51893186aac36f091da2ece9eecceb58N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4580
- C:\Users\Admin\AppData\Local\Temp\40efde16d08059a99d43c80e67e7c76c51893186aac36f091da2ece9eecceb58N.exe
  C:\Users\Admin\AppData\Local\Temp\40efde16d08059a99d43c80e67e7c76c51893186aac36f091da2ece9eecceb58N.exe
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:5116
- - C:\Users\Admin\AppData\Local\Temp\server.exe
    "C:\Users\Admin\AppData\Local\Temp\server.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:2992
  - - C:\Users\Admin\AppData\Local\Temp\server.exe
      C:\Users\Admin\AppData\Local\Temp\server.exe
      4⤵
      Executes dropped EXE
      Adds Run key to start application
      System Location Discovery: System Language Discovery
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of WriteProcessMemory
      PID:3412
    - - C:\Windows\SysWOW64\netsh.exe
        
        netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\server.exe" "server.exe" ENABLE
        5⤵
        Modifies Windows Firewall
        Event Triggered Execution: Netsh Helper DLL
        System Location Discovery: System Language Discovery
        
        PID:1156

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

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\40efde16d08059a99d43c80e67e7c76c51893186aac36f091da2ece9eecceb58N.exe.log

Filesize
1KB

MD5
9a2d0ce437d2445330f2646472703087

SHA1
33c83e484a15f35c2caa3af62d5da6b7713a20ae

SHA256
30ea2f716e85f8d14a201e3fb0897d745a01b113342dfb7a9b7ac133c4ef150c

SHA512
a61d18d90bfad9ea8afdfa37537cfea3d5a3d0c161e323fa65840c283bdc87c3de85daaff5519beea2f2719eec1c68398eea8679b55ff733a61052f073162d5d

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

Filesize
980KB

MD5
9d39a28d4969df4949cebc75f03554c0

SHA1
1e3230a54a084e8558c648a66b23f868e7c1276f

SHA256
40efde16d08059a99d43c80e67e7c76c51893186aac36f091da2ece9eecceb58

SHA512
4b3c4e6b50a28e8352db4ffacdb865ed1ff219c224d40db3076c796ca4cd83c1e9cd35151a1473c2e72bd172ca0bc0f7e43282cb63f12e9199d4641ff9a2c847

Download Submit
memory/2992-56-0x0000000074B50000-0x0000000075300000-memory.dmp

Filesize
7.7MB

Download
memory/2992-41-0x0000000074B50000-0x0000000075300000-memory.dmp

Filesize
7.7MB

Download
memory/4580-27-0x0000000074B50000-0x0000000075300000-memory.dmp

Filesize
7.7MB

Download
memory/4580-24-0x0000000074B50000-0x0000000075300000-memory.dmp

Filesize
7.7MB

Download
memory/4580-6-0x0000000074B50000-0x0000000075300000-memory.dmp

Filesize
7.7MB

Download
memory/4580-7-0x00000000057E0000-0x00000000057EA000-memory.dmp

Filesize
40KB

Download
memory/4580-1-0x0000000000950000-0x0000000000A4C000-memory.dmp

Filesize
1008KB

Download
memory/4580-20-0x0000000074B50000-0x0000000075300000-memory.dmp

Filesize
7.7MB

Download
memory/4580-2-0x0000000005450000-0x00000000054EC000-memory.dmp

Filesize
624KB

Download
memory/4580-22-0x0000000074B50000-0x0000000075300000-memory.dmp

Filesize
7.7MB

Download
memory/4580-23-0x0000000074B50000-0x0000000075300000-memory.dmp

Filesize
7.7MB

Download
memory/4580-5-0x00000000055A0000-0x00000000055AA000-memory.dmp

Filesize
40KB

Download
memory/4580-3-0x0000000005AA0000-0x0000000006044000-memory.dmp

Filesize
5.6MB

Download
memory/4580-0-0x0000000074B5E000-0x0000000074B5F000-memory.dmp

Filesize
4KB

Download
memory/4580-4-0x00000000054F0000-0x0000000005582000-memory.dmp

Filesize
584KB

Download
memory/5116-40-0x0000000074B50000-0x0000000075300000-memory.dmp

Filesize
7.7MB

Download
memory/5116-25-0x0000000074B50000-0x0000000075300000-memory.dmp

Filesize
7.7MB

Download
memory/5116-21-0x0000000002CD0000-0x0000000002CDC000-memory.dmp

Filesize
48KB

Download
memory/5116-18-0x0000000000400000-0x0000000000408000-memory.dmp

Filesize
32KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads