njrat | 36e5ac444af1ddf8dfa1f67132ec053430ef93c2212a1b6463bc165bd2d00b49

General

Target

fa751a76c642d964037f4bd88db04e30N.exe
Size

172KB
MD5

fa751a76c642d964037f4bd88db04e30
SHA1

02c7346af3816c4f61a4a47c016bdfd0c88afedd
SHA256

36e5ac444af1ddf8dfa1f67132ec053430ef93c2212a1b6463bc165bd2d00b49
SHA512

6680b1e37d872755ef2e584724047f3e7d7857f460d61eb7484f5490e24c58453782bbc0782c14f3f34940efe5cdc6ed5c350596ced1e0ed3611114c920f3fdf
SSDEEP

3072:QxnTTbBgKZvq08p1MS1BllY7aYtLH9NHTuVIT2U2y:uNZ8p17y7d9JTQIT2U2

Score

10^/10

njrat hacked discovery evasion persistence privilege_escalation trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

HacKed

C2

bytet.ddns.net:5552

Mutex

3fb8a2ca84b8925e17882e2cb765f819

Attributes

reg_key
3fb8a2ca84b8925e17882e2cb765f819
splitter
|'|'|

Signatures

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
2220	netsh.exe

Executes dropped EXE 1 IoCs

pid	Process
2776	RuntimeBroker.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-1-5-21-3434294380-2554721341-1919518612-1000\Software\Microsoft\Windows\CurrentVersion\Run\3fb8a2ca84b8925e17882e2cb765f819 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\RuntimeBroker.exe\" .."	RuntimeBroker.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\3fb8a2ca84b8925e17882e2cb765f819 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\RuntimeBroker.exe\" .."	RuntimeBroker.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 opened	\REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh	netsh.exe

System Time Discovery 1 TTPs 1 IoCs

Adversary may gather the system time and/or time zone settings from a local or remote system.

discovery

System Time Discovery

T1124

pid	Process
2220	netsh.exe

Suspicious use of AdjustPrivilegeToken 27 IoCs

description	pid	Process
Token: SeDebugPrivilege	2776	RuntimeBroker.exe
Token: 33	2776	RuntimeBroker.exe
Token: SeIncBasePriorityPrivilege	2776	RuntimeBroker.exe
Token: 33	2776	RuntimeBroker.exe
Token: SeIncBasePriorityPrivilege	2776	RuntimeBroker.exe
Token: 33	2776	RuntimeBroker.exe
Token: SeIncBasePriorityPrivilege	2776	RuntimeBroker.exe
Token: 33	2776	RuntimeBroker.exe
Token: SeIncBasePriorityPrivilege	2776	RuntimeBroker.exe
Token: 33	2776	RuntimeBroker.exe
Token: SeIncBasePriorityPrivilege	2776	RuntimeBroker.exe
Token: 33	2776	RuntimeBroker.exe
Token: SeIncBasePriorityPrivilege	2776	RuntimeBroker.exe
Token: 33	2776	RuntimeBroker.exe
Token: SeIncBasePriorityPrivilege	2776	RuntimeBroker.exe
Token: 33	2776	RuntimeBroker.exe
Token: SeIncBasePriorityPrivilege	2776	RuntimeBroker.exe
Token: 33	2776	RuntimeBroker.exe
Token: SeIncBasePriorityPrivilege	2776	RuntimeBroker.exe
Token: 33	2776	RuntimeBroker.exe
Token: SeIncBasePriorityPrivilege	2776	RuntimeBroker.exe
Token: 33	2776	RuntimeBroker.exe
Token: SeIncBasePriorityPrivilege	2776	RuntimeBroker.exe
Token: 33	2776	RuntimeBroker.exe
Token: SeIncBasePriorityPrivilege	2776	RuntimeBroker.exe
Token: 33	2776	RuntimeBroker.exe
Token: SeIncBasePriorityPrivilege	2776	RuntimeBroker.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 808 wrote to memory of 2776	808	fa751a76c642d964037f4bd88db04e30N.exe	30
PID 808 wrote to memory of 2776	808	fa751a76c642d964037f4bd88db04e30N.exe	30
PID 808 wrote to memory of 2776	808	fa751a76c642d964037f4bd88db04e30N.exe	30
PID 2776 wrote to memory of 2220	2776	RuntimeBroker.exe	31
PID 2776 wrote to memory of 2220	2776	RuntimeBroker.exe	31
PID 2776 wrote to memory of 2220	2776	RuntimeBroker.exe	31

C:\Users\Admin\AppData\Local\Temp\fa751a76c642d964037f4bd88db04e30N.exe
"C:\Users\Admin\AppData\Local\Temp\fa751a76c642d964037f4bd88db04e30N.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:808
- C:\Users\Admin\AppData\Local\Temp\RuntimeBroker.exe
  "C:\Users\Admin\AppData\Local\Temp\RuntimeBroker.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2776
- - C:\Windows\system32\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\RuntimeBroker.exe" "RuntimeBroker.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    - System Time Discovery
    PID:2220

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 Time Discovery

1

T1124

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\RuntimeBroker.exe

Filesize
172KB

MD5
fa751a76c642d964037f4bd88db04e30

SHA1
02c7346af3816c4f61a4a47c016bdfd0c88afedd

SHA256
36e5ac444af1ddf8dfa1f67132ec053430ef93c2212a1b6463bc165bd2d00b49

SHA512
6680b1e37d872755ef2e584724047f3e7d7857f460d61eb7484f5490e24c58453782bbc0782c14f3f34940efe5cdc6ed5c350596ced1e0ed3611114c920f3fdf

Download Submit
memory/808-0-0x000007FEF5B2E000-0x000007FEF5B2F000-memory.dmp

Filesize
4KB

Download
memory/808-1-0x00000000004E0000-0x00000000004EC000-memory.dmp

Filesize
48KB

Download
memory/808-2-0x000007FEF5870000-0x000007FEF620D000-memory.dmp

Filesize
9.6MB

Download
memory/808-3-0x000007FEF5870000-0x000007FEF620D000-memory.dmp

Filesize
9.6MB

Download
memory/808-11-0x000007FEF5870000-0x000007FEF620D000-memory.dmp

Filesize
9.6MB

Download
memory/2776-12-0x000007FEF5870000-0x000007FEF620D000-memory.dmp

Filesize
9.6MB

Download
memory/2776-13-0x000007FEF5870000-0x000007FEF620D000-memory.dmp

Filesize
9.6MB

Download
memory/2776-14-0x000007FEF5870000-0x000007FEF620D000-memory.dmp

Filesize
9.6MB

Download
memory/2776-15-0x000007FEF5870000-0x000007FEF620D000-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