njrat | 38451f9cee47daf6fa98fee356ebf5a18194c5c5fa4d2ffc69af515a60de5e8c

General

Target

38451f9cee47daf6fa98fee356ebf5a18194c5c5fa4d2ffc69af515a60de5e8c.exe
Size

37KB
MD5

56eaff4406bc90d0671285a7ecb67cb2
SHA1

c0cdd9a413157fad109391cc045428cef70ed197
SHA256

38451f9cee47daf6fa98fee356ebf5a18194c5c5fa4d2ffc69af515a60de5e8c
SHA512

d1fa94d54b150a9c93528049fec70c7bb59e1a87a8e46dba5f04bb3febad06deefb6c5cc09d24a9e69f0b3b317590747341feab84883379c36f239e1868629f9
SSDEEP

384:+iaCiMmB63fbw6ZfrZUy8fCiHVugmB+xRrAF+rMRTyN/0L+EcoinblneHQM3epz9:X60DwODZX8fCiEd+/rM+rMRa8NuJhVt

Score

10^/10

njrat hacked by killer discovery evasion persistence privilege_escalation trojan

Malware Config

Extracted

Family

njrat

Version

im523

Botnet

HacKed By KiLLeR

C2

killerfo2.ddns.net:1177

Mutex

61e53fca4b50eaee89f696351aed3589

Attributes

reg_key
61e53fca4b50eaee89f696351aed3589
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
1292	netsh.exe

Drops startup file 2 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\61e53fca4b50eaee89f696351aed3589.exe	chroom.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\61e53fca4b50eaee89f696351aed3589.exe	chroom.exe

Executes dropped EXE 1 IoCs

pid	Process
1224	chroom.exe

Loads dropped DLL 1 IoCs

pid	Process
2444	38451f9cee47daf6fa98fee356ebf5a18194c5c5fa4d2ffc69af515a60de5e8c.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\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 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	38451f9cee47daf6fa98fee356ebf5a18194c5c5fa4d2ffc69af515a60de5e8c.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	chroom.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

Suspicious use of AdjustPrivilegeToken 35 IoCs

description	pid	Process
Token: SeDebugPrivilege	1224	chroom.exe
Token: 33	1224	chroom.exe
Token: SeIncBasePriorityPrivilege	1224	chroom.exe
Token: 33	1224	chroom.exe
Token: SeIncBasePriorityPrivilege	1224	chroom.exe
Token: 33	1224	chroom.exe
Token: SeIncBasePriorityPrivilege	1224	chroom.exe
Token: 33	1224	chroom.exe
Token: SeIncBasePriorityPrivilege	1224	chroom.exe
Token: 33	1224	chroom.exe
Token: SeIncBasePriorityPrivilege	1224	chroom.exe
Token: 33	1224	chroom.exe
Token: SeIncBasePriorityPrivilege	1224	chroom.exe
Token: 33	1224	chroom.exe
Token: SeIncBasePriorityPrivilege	1224	chroom.exe
Token: 33	1224	chroom.exe
Token: SeIncBasePriorityPrivilege	1224	chroom.exe
Token: 33	1224	chroom.exe
Token: SeIncBasePriorityPrivilege	1224	chroom.exe
Token: 33	1224	chroom.exe
Token: SeIncBasePriorityPrivilege	1224	chroom.exe
Token: 33	1224	chroom.exe
Token: SeIncBasePriorityPrivilege	1224	chroom.exe
Token: 33	1224	chroom.exe
Token: SeIncBasePriorityPrivilege	1224	chroom.exe
Token: 33	1224	chroom.exe
Token: SeIncBasePriorityPrivilege	1224	chroom.exe
Token: 33	1224	chroom.exe
Token: SeIncBasePriorityPrivilege	1224	chroom.exe
Token: 33	1224	chroom.exe
Token: SeIncBasePriorityPrivilege	1224	chroom.exe
Token: 33	1224	chroom.exe
Token: SeIncBasePriorityPrivilege	1224	chroom.exe
Token: 33	1224	chroom.exe
Token: SeIncBasePriorityPrivilege	1224	chroom.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2444 wrote to memory of 1224	2444	38451f9cee47daf6fa98fee356ebf5a18194c5c5fa4d2ffc69af515a60de5e8c.exe	28
PID 2444 wrote to memory of 1224	2444	38451f9cee47daf6fa98fee356ebf5a18194c5c5fa4d2ffc69af515a60de5e8c.exe	28
PID 2444 wrote to memory of 1224	2444	38451f9cee47daf6fa98fee356ebf5a18194c5c5fa4d2ffc69af515a60de5e8c.exe	28
PID 2444 wrote to memory of 1224	2444	38451f9cee47daf6fa98fee356ebf5a18194c5c5fa4d2ffc69af515a60de5e8c.exe	28
PID 1224 wrote to memory of 1292	1224	chroom.exe	31
PID 1224 wrote to memory of 1292	1224	chroom.exe	31
PID 1224 wrote to memory of 1292	1224	chroom.exe	31
PID 1224 wrote to memory of 1292	1224	chroom.exe	31

C:\Users\Admin\AppData\Local\Temp\38451f9cee47daf6fa98fee356ebf5a18194c5c5fa4d2ffc69af515a60de5e8c.exe
"C:\Users\Admin\AppData\Local\Temp\38451f9cee47daf6fa98fee356ebf5a18194c5c5fa4d2ffc69af515a60de5e8c.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2444
- C:\Users\Admin\AppData\Local\Temp\chroom.exe
  "C:\Users\Admin\AppData\Local\Temp\chroom.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1224
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\chroom.exe" "chroom.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    - System Location Discovery: System Language Discovery
    PID:1292

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

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

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

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

\Users\Admin\AppData\Local\Temp\chroom.exe

Filesize
37KB

MD5
56eaff4406bc90d0671285a7ecb67cb2

SHA1
c0cdd9a413157fad109391cc045428cef70ed197

SHA256
38451f9cee47daf6fa98fee356ebf5a18194c5c5fa4d2ffc69af515a60de5e8c

SHA512
d1fa94d54b150a9c93528049fec70c7bb59e1a87a8e46dba5f04bb3febad06deefb6c5cc09d24a9e69f0b3b317590747341feab84883379c36f239e1868629f9

Download Submit
memory/1224-12-0x0000000074530000-0x0000000074ADB000-memory.dmp

Filesize
5.7MB

Download
memory/1224-11-0x0000000074530000-0x0000000074ADB000-memory.dmp

Filesize
5.7MB

Download
memory/1224-14-0x0000000074530000-0x0000000074ADB000-memory.dmp

Filesize
5.7MB

Download
memory/2444-0-0x0000000074531000-0x0000000074532000-memory.dmp

Filesize
4KB

Download
memory/2444-1-0x0000000074530000-0x0000000074ADB000-memory.dmp

Filesize
5.7MB

Download
memory/2444-2-0x0000000074530000-0x0000000074ADB000-memory.dmp

Filesize
5.7MB

Download
memory/2444-10-0x0000000074530000-0x0000000074ADB000-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