njrat | 6e75b06ed5ddf7d217f19f9de9d4c9d615de7c846ec223fe5cefa29ff638a89c

General

Target

6e75b06ed5ddf7d217f19f9de9d4c9d615de7c846ec223fe5cefa29ff638a89cN.exe
Size

1.2MB
MD5

a4492815d6aa8ec763aff5beec9e19d0
SHA1

656881901218c070c55a4d9cbe574739f5bc0424
SHA256

6e75b06ed5ddf7d217f19f9de9d4c9d615de7c846ec223fe5cefa29ff638a89c
SHA512

032c652bfeee89aaf64ce2e0a899aca6e0d90541158510ae4c3c344c8856921cf34dc6b5b4de458f828d9f7a12a3d4d9d85b45727bb59d98f9928c54e6b41e32
SSDEEP

24576:eAHnh+eWsN3skA4RV1Hom2KXMmHaW7aWvCaFg5a7PCmWX95e:Jh+ZkldoPK8YaW7CaZ7IHe

Score

10^/10

njrat redlanhopto discovery evasion persistence privilege_escalation trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

redlanhopto

C2

redlan.hopto.org:5553

Mutex

d25d360449d7bab3069e1b77b3a914a3

Attributes

reg_key
d25d360449d7bab3069e1b77b3a914a3
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
2332	netsh.exe

Executes dropped EXE 1 IoCs

pid	Process
1696	data.exe

AutoIT Executable 1 IoCs

AutoIT scripts compiled to PE executables.

resource	yara_rule
behavioral1/files/0x0008000000015e47-14.dat	autoit_exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2352 set thread context of 2744	2352	6e75b06ed5ddf7d217f19f9de9d4c9d615de7c846ec223fe5cefa29ff638a89cN.exe	31

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	6e75b06ed5ddf7d217f19f9de9d4c9d615de7c846ec223fe5cefa29ff638a89cN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegAsm.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	data.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
3044	schtasks.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2352	6e75b06ed5ddf7d217f19f9de9d4c9d615de7c846ec223fe5cefa29ff638a89cN.exe
2352	6e75b06ed5ddf7d217f19f9de9d4c9d615de7c846ec223fe5cefa29ff638a89cN.exe
1696	data.exe
1696	data.exe

Suspicious use of AdjustPrivilegeToken 21 IoCs

description	pid	Process
Token: SeDebugPrivilege	2744	RegAsm.exe
Token: 33	2744	RegAsm.exe
Token: SeIncBasePriorityPrivilege	2744	RegAsm.exe
Token: 33	2744	RegAsm.exe
Token: SeIncBasePriorityPrivilege	2744	RegAsm.exe
Token: 33	2744	RegAsm.exe
Token: SeIncBasePriorityPrivilege	2744	RegAsm.exe
Token: 33	2744	RegAsm.exe
Token: SeIncBasePriorityPrivilege	2744	RegAsm.exe
Token: 33	2744	RegAsm.exe
Token: SeIncBasePriorityPrivilege	2744	RegAsm.exe
Token: 33	2744	RegAsm.exe
Token: SeIncBasePriorityPrivilege	2744	RegAsm.exe
Token: 33	2744	RegAsm.exe
Token: SeIncBasePriorityPrivilege	2744	RegAsm.exe
Token: 33	2744	RegAsm.exe
Token: SeIncBasePriorityPrivilege	2744	RegAsm.exe
Token: 33	2744	RegAsm.exe
Token: SeIncBasePriorityPrivilege	2744	RegAsm.exe
Token: 33	2744	RegAsm.exe
Token: SeIncBasePriorityPrivilege	2744	RegAsm.exe

Suspicious use of FindShellTrayWindow 6 IoCs

pid	Process
2352	6e75b06ed5ddf7d217f19f9de9d4c9d615de7c846ec223fe5cefa29ff638a89cN.exe
2352	6e75b06ed5ddf7d217f19f9de9d4c9d615de7c846ec223fe5cefa29ff638a89cN.exe
2352	6e75b06ed5ddf7d217f19f9de9d4c9d615de7c846ec223fe5cefa29ff638a89cN.exe
1696	data.exe
1696	data.exe
1696	data.exe

Suspicious use of SendNotifyMessage 6 IoCs

pid	Process
2352	6e75b06ed5ddf7d217f19f9de9d4c9d615de7c846ec223fe5cefa29ff638a89cN.exe
2352	6e75b06ed5ddf7d217f19f9de9d4c9d615de7c846ec223fe5cefa29ff638a89cN.exe
2352	6e75b06ed5ddf7d217f19f9de9d4c9d615de7c846ec223fe5cefa29ff638a89cN.exe
1696	data.exe
1696	data.exe
1696	data.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 2352 wrote to memory of 2744	2352	6e75b06ed5ddf7d217f19f9de9d4c9d615de7c846ec223fe5cefa29ff638a89cN.exe	31
PID 2352 wrote to memory of 2744	2352	6e75b06ed5ddf7d217f19f9de9d4c9d615de7c846ec223fe5cefa29ff638a89cN.exe	31
PID 2352 wrote to memory of 2744	2352	6e75b06ed5ddf7d217f19f9de9d4c9d615de7c846ec223fe5cefa29ff638a89cN.exe	31
PID 2352 wrote to memory of 2744	2352	6e75b06ed5ddf7d217f19f9de9d4c9d615de7c846ec223fe5cefa29ff638a89cN.exe	31
PID 2352 wrote to memory of 2744	2352	6e75b06ed5ddf7d217f19f9de9d4c9d615de7c846ec223fe5cefa29ff638a89cN.exe	31
PID 2352 wrote to memory of 2744	2352	6e75b06ed5ddf7d217f19f9de9d4c9d615de7c846ec223fe5cefa29ff638a89cN.exe	31
PID 2352 wrote to memory of 2744	2352	6e75b06ed5ddf7d217f19f9de9d4c9d615de7c846ec223fe5cefa29ff638a89cN.exe	31
PID 2352 wrote to memory of 2744	2352	6e75b06ed5ddf7d217f19f9de9d4c9d615de7c846ec223fe5cefa29ff638a89cN.exe	31
PID 2352 wrote to memory of 2744	2352	6e75b06ed5ddf7d217f19f9de9d4c9d615de7c846ec223fe5cefa29ff638a89cN.exe	31
PID 2744 wrote to memory of 2332	2744	RegAsm.exe	32
PID 2744 wrote to memory of 2332	2744	RegAsm.exe	32
PID 2744 wrote to memory of 2332	2744	RegAsm.exe	32
PID 2744 wrote to memory of 2332	2744	RegAsm.exe	32
PID 2352 wrote to memory of 3044	2352	6e75b06ed5ddf7d217f19f9de9d4c9d615de7c846ec223fe5cefa29ff638a89cN.exe	35
PID 2352 wrote to memory of 3044	2352	6e75b06ed5ddf7d217f19f9de9d4c9d615de7c846ec223fe5cefa29ff638a89cN.exe	35
PID 2352 wrote to memory of 3044	2352	6e75b06ed5ddf7d217f19f9de9d4c9d615de7c846ec223fe5cefa29ff638a89cN.exe	35
PID 2352 wrote to memory of 3044	2352	6e75b06ed5ddf7d217f19f9de9d4c9d615de7c846ec223fe5cefa29ff638a89cN.exe	35
PID 1200 wrote to memory of 1696	1200	taskeng.exe	38
PID 1200 wrote to memory of 1696	1200	taskeng.exe	38
PID 1200 wrote to memory of 1696	1200	taskeng.exe	38
PID 1200 wrote to memory of 1696	1200	taskeng.exe	38

C:\Users\Admin\AppData\Local\Temp\6e75b06ed5ddf7d217f19f9de9d4c9d615de7c846ec223fe5cefa29ff638a89cN.exe
"C:\Users\Admin\AppData\Local\Temp\6e75b06ed5ddf7d217f19f9de9d4c9d615de7c846ec223fe5cefa29ff638a89cN.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:2352
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2744
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe" "RegAsm.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    - System Location Discovery: System Language Discovery
    PID:2332
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\SysWOW64\schtasks.exe" /create /tn igfxHK /tr "C:\Users\Admin\AppData\Roaming\chkdsk\data.exe" /sc minute /mo 1 /F
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:3044

C:\Windows\system32\taskeng.exe
taskeng.exe {8B16DAFB-767E-4AE6-A287-6A6A893CADAF} S-1-5-21-3533259084-2542256011-65585152-1000:XPAJOTIY\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:1200
- C:\Users\Admin\AppData\Roaming\chkdsk\data.exe
  C:\Users\Admin\AppData\Roaming\chkdsk\data.exe
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  PID:1696

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Impair Defenses

1

T1562

Disable or Modify System Firewall

1

T1562.004

Credential Access

Discovery

System Information Discovery

1

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\Roaming\chkdsk\data.exe

Filesize
1.2MB

MD5
05ec69be43ac79506716009e17546e7c

SHA1
3eb5eb74347c011b2cebb1dd658f784e79b89068

SHA256
140a7577195c14b1e2b1c1ed5b9811420660f7ac30b51b44b30c63b5d2351178

SHA512
d56df5d4556d219bf5cca91ff34b78d3827cfcc022366ad085bfe07b6fe5a8b16913eede01e8dde861a392cc1c60e05da23eb0b9afb0a8227e31dee0e5deef97

Download Submit
memory/2352-0-0x00000000001A0000-0x00000000001A1000-memory.dmp

Filesize
4KB

Download
memory/2744-2-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/2744-1-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/2744-9-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/2744-8-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/2744-6-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2744-10-0x0000000074842000-0x0000000074844000-memory.dmp

Filesize
8KB

Download
memory/2744-11-0x0000000074842000-0x0000000074844000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads