njrat | 5e2a88dd923a18325792406702d32e3cb057126f946e037bcf34e9f9ba6321cf

General

Target

5e2a88dd923a18325792406702d32e3cb057126f946e037bcf34e9f9ba6321cf.exe
Size

23KB
MD5

3549c51a0c4799dc7c7a6a69e1a708a8
SHA1

d8e7d428b90a8e596a9615ba1c43780bbe93e655
SHA256

5e2a88dd923a18325792406702d32e3cb057126f946e037bcf34e9f9ba6321cf
SHA512

f67f6567056a51ce032ea6889d602835d273672328ebdad5fd228a658bf0b3e5a5b24edd6cd955620235e14adf8bbb0d315b1ed2e2ea15f431c4ca9d34259e25
SSDEEP

384:jYmdk8XvCJrQLdRGSiEYF7Y65gPyx6BDXNRmRvR6JZlbw8hqIusZzZX4x:swWkti/aeRpcnubx

Score

10^/10

njrat lammer discovery evasion persistence privilege_escalation trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

Lammer

C2

nzweb2008-22511.portmap.host:22511

Mutex

334f132010bbc79a6e7c28a01892af18

Attributes

reg_key
334f132010bbc79a6e7c28a01892af18
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

Processes:

netsh.exe

pid	Process
2440	netsh.exe

Drops startup file 2 IoCs

Processes:

System.exe

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\334f132010bbc79a6e7c28a01892af18.exe	System.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\334f132010bbc79a6e7c28a01892af18.exe	System.exe

Executes dropped EXE 1 IoCs

Processes:

System.exe

pid	Process
2448	System.exe

Loads dropped DLL 1 IoCs

Processes:

5e2a88dd923a18325792406702d32e3cb057126f946e037bcf34e9f9ba6321cf.exe

pid	Process
2324	5e2a88dd923a18325792406702d32e3cb057126f946e037bcf34e9f9ba6321cf.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

System.exe

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2039016743-699959520-214465309-1000\Software\Microsoft\Windows\CurrentVersion\Run\334f132010bbc79a6e7c28a01892af18 = "\"C:\\Users\\Admin\\System.exe\" .."	System.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\334f132010bbc79a6e7c28a01892af18 = "\"C:\\Users\\Admin\\System.exe\" .."	System.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

Processes:

netsh.exe

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 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

Processes:

5e2a88dd923a18325792406702d32e3cb057126f946e037bcf34e9f9ba6321cf.exeSystem.exenetsh.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	5e2a88dd923a18325792406702d32e3cb057126f946e037bcf34e9f9ba6321cf.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	System.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

Suspicious use of AdjustPrivilegeToken 27 IoCs

Processes:

System.exe

description	pid	Process
Token: SeDebugPrivilege	2448	System.exe
Token: 33	2448	System.exe
Token: SeIncBasePriorityPrivilege	2448	System.exe
Token: 33	2448	System.exe
Token: SeIncBasePriorityPrivilege	2448	System.exe
Token: 33	2448	System.exe
Token: SeIncBasePriorityPrivilege	2448	System.exe
Token: 33	2448	System.exe
Token: SeIncBasePriorityPrivilege	2448	System.exe
Token: 33	2448	System.exe
Token: SeIncBasePriorityPrivilege	2448	System.exe
Token: 33	2448	System.exe
Token: SeIncBasePriorityPrivilege	2448	System.exe
Token: 33	2448	System.exe
Token: SeIncBasePriorityPrivilege	2448	System.exe
Token: 33	2448	System.exe
Token: SeIncBasePriorityPrivilege	2448	System.exe
Token: 33	2448	System.exe
Token: SeIncBasePriorityPrivilege	2448	System.exe
Token: 33	2448	System.exe
Token: SeIncBasePriorityPrivilege	2448	System.exe
Token: 33	2448	System.exe
Token: SeIncBasePriorityPrivilege	2448	System.exe
Token: 33	2448	System.exe
Token: SeIncBasePriorityPrivilege	2448	System.exe
Token: 33	2448	System.exe
Token: SeIncBasePriorityPrivilege	2448	System.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

5e2a88dd923a18325792406702d32e3cb057126f946e037bcf34e9f9ba6321cf.exeSystem.exe

description	pid	Process	procid_target
PID 2324 wrote to memory of 2448	2324	5e2a88dd923a18325792406702d32e3cb057126f946e037bcf34e9f9ba6321cf.exe	28
PID 2324 wrote to memory of 2448	2324	5e2a88dd923a18325792406702d32e3cb057126f946e037bcf34e9f9ba6321cf.exe	28
PID 2324 wrote to memory of 2448	2324	5e2a88dd923a18325792406702d32e3cb057126f946e037bcf34e9f9ba6321cf.exe	28
PID 2324 wrote to memory of 2448	2324	5e2a88dd923a18325792406702d32e3cb057126f946e037bcf34e9f9ba6321cf.exe	28
PID 2448 wrote to memory of 2440	2448	System.exe	29
PID 2448 wrote to memory of 2440	2448	System.exe	29
PID 2448 wrote to memory of 2440	2448	System.exe	29
PID 2448 wrote to memory of 2440	2448	System.exe	29

C:\Users\Admin\AppData\Local\Temp\5e2a88dd923a18325792406702d32e3cb057126f946e037bcf34e9f9ba6321cf.exe
"C:\Users\Admin\AppData\Local\Temp\5e2a88dd923a18325792406702d32e3cb057126f946e037bcf34e9f9ba6321cf.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2324
- C:\Users\Admin\System.exe
  "C:\Users\Admin\System.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:2448
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\System.exe" "System.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    - System Location Discovery: System Language Discovery
    PID:2440

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\System.exe

Filesize
23KB

MD5
3549c51a0c4799dc7c7a6a69e1a708a8

SHA1
d8e7d428b90a8e596a9615ba1c43780bbe93e655

SHA256
5e2a88dd923a18325792406702d32e3cb057126f946e037bcf34e9f9ba6321cf

SHA512
f67f6567056a51ce032ea6889d602835d273672328ebdad5fd228a658bf0b3e5a5b24edd6cd955620235e14adf8bbb0d315b1ed2e2ea15f431c4ca9d34259e25

Download Submit
memory/2324-0-0x0000000074A41000-0x0000000074A42000-memory.dmp

Filesize
4KB

Download
memory/2324-1-0x0000000074A40000-0x0000000074FEB000-memory.dmp

Filesize
5.7MB

Download
memory/2324-2-0x0000000074A40000-0x0000000074FEB000-memory.dmp

Filesize
5.7MB

Download
memory/2324-11-0x0000000074A40000-0x0000000074FEB000-memory.dmp

Filesize
5.7MB

Download
memory/2448-12-0x0000000074A40000-0x0000000074FEB000-memory.dmp

Filesize
5.7MB

Download
memory/2448-10-0x0000000074A40000-0x0000000074FEB000-memory.dmp

Filesize
5.7MB

Download
memory/2448-14-0x0000000074A40000-0x0000000074FEB000-memory.dmp

Filesize
5.7MB

Download
memory/2448-15-0x0000000074A40000-0x0000000074FEB000-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