njrat | 473f047c2ce0905a6a93ce61e38ff40612c547560c433938c69eb27691e9868f

General

Target

JaffaCakes118_52406ab5bc64563c1eb544c201c943aa.exe
Size

276KB
MD5

52406ab5bc64563c1eb544c201c943aa
SHA1

54a8ff5e620f03a98adde2bb0eb42c7fc80d7c1c
SHA256

473f047c2ce0905a6a93ce61e38ff40612c547560c433938c69eb27691e9868f
SHA512

96dc4579bce2e8860f56b48231ae9a1dd0ac4ec71d5a058bfcc5991b2498521a36a018bfa7afbcaeaec116995803c45c93f1f0463d5135eb5a5c9e55a21871b6
SSDEEP

6144:Pg9OvfU5US1IhI88u0p4tA5eyeNZmz85VBWYx07Q6D:IOv85zcI8vA5MnmwIYo/

Score

10^/10

njrat server discovery evasion persistence privilege_escalation trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

server

C2

psycho77777.ddns.net:1177

Mutex

24b6054fc8f5be0070f08d51b2a1dd72

Attributes

reg_key
24b6054fc8f5be0070f08d51b2a1dd72
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
3208	netsh.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\Control Panel\International\Geo\Nation	JaffaCakes118_52406ab5bc64563c1eb544c201c943aa.exe

Executes dropped EXE 1 IoCs

pid	Process
2572	server.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-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\24b6054fc8f5be0070f08d51b2a1dd72 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .."	server.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\24b6054fc8f5be0070f08d51b2a1dd72 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .."	server.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	JaffaCakes118_52406ab5bc64563c1eb544c201c943aa.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	server.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

Suspicious use of AdjustPrivilegeToken 35 IoCs

description	pid	Process
Token: SeDebugPrivilege	2572	server.exe
Token: 33	2572	server.exe
Token: SeIncBasePriorityPrivilege	2572	server.exe
Token: 33	2572	server.exe
Token: SeIncBasePriorityPrivilege	2572	server.exe
Token: 33	2572	server.exe
Token: SeIncBasePriorityPrivilege	2572	server.exe
Token: 33	2572	server.exe
Token: SeIncBasePriorityPrivilege	2572	server.exe
Token: 33	2572	server.exe
Token: SeIncBasePriorityPrivilege	2572	server.exe
Token: 33	2572	server.exe
Token: SeIncBasePriorityPrivilege	2572	server.exe
Token: 33	2572	server.exe
Token: SeIncBasePriorityPrivilege	2572	server.exe
Token: 33	2572	server.exe
Token: SeIncBasePriorityPrivilege	2572	server.exe
Token: 33	2572	server.exe
Token: SeIncBasePriorityPrivilege	2572	server.exe
Token: 33	2572	server.exe
Token: SeIncBasePriorityPrivilege	2572	server.exe
Token: 33	2572	server.exe
Token: SeIncBasePriorityPrivilege	2572	server.exe
Token: 33	2572	server.exe
Token: SeIncBasePriorityPrivilege	2572	server.exe
Token: 33	2572	server.exe
Token: SeIncBasePriorityPrivilege	2572	server.exe
Token: 33	2572	server.exe
Token: SeIncBasePriorityPrivilege	2572	server.exe
Token: 33	2572	server.exe
Token: SeIncBasePriorityPrivilege	2572	server.exe
Token: 33	2572	server.exe
Token: SeIncBasePriorityPrivilege	2572	server.exe
Token: 33	2572	server.exe
Token: SeIncBasePriorityPrivilege	2572	server.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 392 wrote to memory of 2572	392	JaffaCakes118_52406ab5bc64563c1eb544c201c943aa.exe	83
PID 392 wrote to memory of 2572	392	JaffaCakes118_52406ab5bc64563c1eb544c201c943aa.exe	83
PID 392 wrote to memory of 2572	392	JaffaCakes118_52406ab5bc64563c1eb544c201c943aa.exe	83
PID 2572 wrote to memory of 3208	2572	server.exe	92
PID 2572 wrote to memory of 3208	2572	server.exe	92
PID 2572 wrote to memory of 3208	2572	server.exe	92

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_52406ab5bc64563c1eb544c201c943aa.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_52406ab5bc64563c1eb544c201c943aa.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:392
- C:\Users\Admin\AppData\Local\Temp\server.exe
  "C:\Users\Admin\AppData\Local\Temp\server.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2572
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\server.exe" "server.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    - System Location Discovery: System Language Discovery
    PID:3208

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

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

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

Filesize
276KB

MD5
52406ab5bc64563c1eb544c201c943aa

SHA1
54a8ff5e620f03a98adde2bb0eb42c7fc80d7c1c

SHA256
473f047c2ce0905a6a93ce61e38ff40612c547560c433938c69eb27691e9868f

SHA512
96dc4579bce2e8860f56b48231ae9a1dd0ac4ec71d5a058bfcc5991b2498521a36a018bfa7afbcaeaec116995803c45c93f1f0463d5135eb5a5c9e55a21871b6

Download Submit
memory/392-4-0x0000000004C60000-0x0000000004C76000-memory.dmp

Filesize
88KB

Download
memory/392-21-0x0000000074CD0000-0x0000000075480000-memory.dmp

Filesize
7.7MB

Download
memory/392-3-0x0000000074CD0000-0x0000000075480000-memory.dmp

Filesize
7.7MB

Download
memory/392-0-0x0000000074CDE000-0x0000000074CDF000-memory.dmp

Filesize
4KB

Download
memory/392-5-0x0000000007420000-0x00000000074BC000-memory.dmp

Filesize
624KB

Download
memory/392-6-0x0000000004E50000-0x0000000004E5C000-memory.dmp

Filesize
48KB

Download
memory/392-2-0x00000000026D0000-0x00000000026E0000-memory.dmp

Filesize
64KB

Download
memory/392-1-0x00000000002C0000-0x000000000030C000-memory.dmp

Filesize
304KB

Download
memory/392-7-0x0000000007A70000-0x0000000008014000-memory.dmp

Filesize
5.6MB

Download
memory/2572-20-0x0000000074CD0000-0x0000000075480000-memory.dmp

Filesize
7.7MB

Download
memory/2572-22-0x0000000074CD0000-0x0000000075480000-memory.dmp

Filesize
7.7MB

Download
memory/2572-23-0x0000000007950000-0x00000000079E2000-memory.dmp

Filesize
584KB

Download
memory/2572-24-0x00000000078F0000-0x00000000078FA000-memory.dmp

Filesize
40KB

Download
memory/2572-25-0x0000000074CD0000-0x0000000075480000-memory.dmp

Filesize
7.7MB

Download
memory/2572-26-0x0000000074CD0000-0x0000000075480000-memory.dmp

Filesize
7.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads