njrat | d20d14792c91107f53318ff7df83b9cd98acd3c394959a74e72278682822b600

General

Target

Sigmanly_d20d14792c91107f53318ff7df83b9cd98acd3c394959a74e72278682822b600.exe
Size

23KB
MD5

f3f9cb8b92891036b0c0d915d52f4870
SHA1

4e5b182b843593bd997ea17699a5b3255fe79b9b
SHA256

d20d14792c91107f53318ff7df83b9cd98acd3c394959a74e72278682822b600
SHA512

23aa0e7c53cef1823d2dfb3003a630a4d6c7394721e25d92c131de1747429cadafccf78d7e92f8174d8a3dbc45ac948c24f149ce897361d5686dfc03b2ac3aa7
SSDEEP

384:lc6CqbFYh3odrVCGiHssDB4b6i6fgpEupNXRmRvR6JZlbw8hqIusZzZU/:mIU0tw3RpcnuN

Score

10^/10

njrat windows discovery evasion persistence privilege_escalation trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

Windows

C2

phh79b4.localto.net:6732

Mutex

8ca7039ed784ff0b410de529abc3d36d

Attributes

reg_key
8ca7039ed784ff0b410de529abc3d36d
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
2760	netsh.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\8ca7039ed784ff0b410de529abc3d36d.exe	Microsoft.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\8ca7039ed784ff0b410de529abc3d36d.exe	Microsoft.exe

Executes dropped EXE 1 IoCs

pid	Process
2368	Microsoft.exe

Loads dropped DLL 1 IoCs

pid	Process
2016	Sigmanly_d20d14792c91107f53318ff7df83b9cd98acd3c394959a74e72278682822b600.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-1-5-21-3533259084-2542256011-65585152-1000\Software\Microsoft\Windows\CurrentVersion\Run\8ca7039ed784ff0b410de529abc3d36d = "\"C:\\Users\\Admin\\AppData\\Roaming\\Microsoft.exe\" .."	Microsoft.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\8ca7039ed784ff0b410de529abc3d36d = "\"C:\\Users\\Admin\\AppData\\Roaming\\Microsoft.exe\" .."	Microsoft.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 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 3 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	Sigmanly_d20d14792c91107f53318ff7df83b9cd98acd3c394959a74e72278682822b600.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Microsoft.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

Suspicious use of AdjustPrivilegeToken 35 IoCs

description	pid	Process
Token: SeDebugPrivilege	2368	Microsoft.exe
Token: 33	2368	Microsoft.exe
Token: SeIncBasePriorityPrivilege	2368	Microsoft.exe
Token: 33	2368	Microsoft.exe
Token: SeIncBasePriorityPrivilege	2368	Microsoft.exe
Token: 33	2368	Microsoft.exe
Token: SeIncBasePriorityPrivilege	2368	Microsoft.exe
Token: 33	2368	Microsoft.exe
Token: SeIncBasePriorityPrivilege	2368	Microsoft.exe
Token: 33	2368	Microsoft.exe
Token: SeIncBasePriorityPrivilege	2368	Microsoft.exe
Token: 33	2368	Microsoft.exe
Token: SeIncBasePriorityPrivilege	2368	Microsoft.exe
Token: 33	2368	Microsoft.exe
Token: SeIncBasePriorityPrivilege	2368	Microsoft.exe
Token: 33	2368	Microsoft.exe
Token: SeIncBasePriorityPrivilege	2368	Microsoft.exe
Token: 33	2368	Microsoft.exe
Token: SeIncBasePriorityPrivilege	2368	Microsoft.exe
Token: 33	2368	Microsoft.exe
Token: SeIncBasePriorityPrivilege	2368	Microsoft.exe
Token: 33	2368	Microsoft.exe
Token: SeIncBasePriorityPrivilege	2368	Microsoft.exe
Token: 33	2368	Microsoft.exe
Token: SeIncBasePriorityPrivilege	2368	Microsoft.exe
Token: 33	2368	Microsoft.exe
Token: SeIncBasePriorityPrivilege	2368	Microsoft.exe
Token: 33	2368	Microsoft.exe
Token: SeIncBasePriorityPrivilege	2368	Microsoft.exe
Token: 33	2368	Microsoft.exe
Token: SeIncBasePriorityPrivilege	2368	Microsoft.exe
Token: 33	2368	Microsoft.exe
Token: SeIncBasePriorityPrivilege	2368	Microsoft.exe
Token: 33	2368	Microsoft.exe
Token: SeIncBasePriorityPrivilege	2368	Microsoft.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2016 wrote to memory of 2368	2016	Sigmanly_d20d14792c91107f53318ff7df83b9cd98acd3c394959a74e72278682822b600.exe	31
PID 2016 wrote to memory of 2368	2016	Sigmanly_d20d14792c91107f53318ff7df83b9cd98acd3c394959a74e72278682822b600.exe	31
PID 2016 wrote to memory of 2368	2016	Sigmanly_d20d14792c91107f53318ff7df83b9cd98acd3c394959a74e72278682822b600.exe	31
PID 2016 wrote to memory of 2368	2016	Sigmanly_d20d14792c91107f53318ff7df83b9cd98acd3c394959a74e72278682822b600.exe	31
PID 2368 wrote to memory of 2760	2368	Microsoft.exe	32
PID 2368 wrote to memory of 2760	2368	Microsoft.exe	32
PID 2368 wrote to memory of 2760	2368	Microsoft.exe	32
PID 2368 wrote to memory of 2760	2368	Microsoft.exe	32

C:\Users\Admin\AppData\Local\Temp\Sigmanly_d20d14792c91107f53318ff7df83b9cd98acd3c394959a74e72278682822b600.exe
"C:\Users\Admin\AppData\Local\Temp\Sigmanly_d20d14792c91107f53318ff7df83b9cd98acd3c394959a74e72278682822b600.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2016
- C:\Users\Admin\AppData\Roaming\Microsoft.exe
  "C:\Users\Admin\AppData\Roaming\Microsoft.exe"
  2⤵
  - 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:2368
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\Microsoft.exe" "Microsoft.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    - System Location Discovery: System Language Discovery
    PID:2760

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

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

\Users\Admin\AppData\Roaming\Microsoft.exe

Filesize
23KB

MD5
f3f9cb8b92891036b0c0d915d52f4870

SHA1
4e5b182b843593bd997ea17699a5b3255fe79b9b

SHA256
d20d14792c91107f53318ff7df83b9cd98acd3c394959a74e72278682822b600

SHA512
23aa0e7c53cef1823d2dfb3003a630a4d6c7394721e25d92c131de1747429cadafccf78d7e92f8174d8a3dbc45ac948c24f149ce897361d5686dfc03b2ac3aa7

Download Submit
memory/2016-0-0x0000000074C01000-0x0000000074C02000-memory.dmp

Filesize
4KB

Download
memory/2016-1-0x0000000074C00000-0x00000000751AB000-memory.dmp

Filesize
5.7MB

Download
memory/2016-2-0x0000000074C00000-0x00000000751AB000-memory.dmp

Filesize
5.7MB

Download
memory/2016-11-0x0000000074C00000-0x00000000751AB000-memory.dmp

Filesize
5.7MB

Download
memory/2368-10-0x0000000074C00000-0x00000000751AB000-memory.dmp

Filesize
5.7MB

Download
memory/2368-12-0x0000000074C00000-0x00000000751AB000-memory.dmp

Filesize
5.7MB

Download
memory/2368-14-0x0000000074C00000-0x00000000751AB000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads