njrat | 694b68741d9ce9e85a21b1a8d4c4a8b99276cfe35ee516e540dd93c19c4fc81e

General

Target
18a21ee0d1143571864d982af389e2df_JaffaCakes118.exe
Size 23KB
Sample240728-vgcn7stdlk
SHA256 694b68741d9ce9e85a21b1a8d4c4a8b99276cfe35ee516e540dd93c19c4fc81e
MD5 18a21ee0d1143571864d982af389e2df
SHA1 1ee7413c7782a3d6bc19f4972cf6daf73d60a5fb
SHA512 b31572d81ed86dc666f3de06b863167ab304aa8a2c957d33a27e34efde30037eacc561f3bb6e398fd4c3fd9d5b0899c94682c2d2d37af08f77bc92ab8f8a54cb
SSDEEP 384:H+n2650N3qZbATcjRGC5Eo9D46BgnqUhay1ZmRvR6JZlbw8hqIusZzZGi:gm+71d5XRpcnui
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

njrat discovery evasion persistence privilege_escalation trojan

Malware Config

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
4992	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-1-5-21-735441492-2964205366-2526932795-1000\Control Panel\International\Geo\Nation	18a21ee0d1143571864d982af389e2df_JaffaCakes118.exe

Executes dropped EXE 1 IoCs

pid	Process
3116	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-1-5-21-735441492-2964205366-2526932795-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\188288e032f198713697eeff738f5e24 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .."	server.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\188288e032f198713697eeff738f5e24 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .."	server.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs

Web Service

T1102

flow	ioc
12	2.tcp.eu.ngrok.io
25	2.tcp.eu.ngrok.io

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	18a21ee0d1143571864d982af389e2df_JaffaCakes118.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	3116	server.exe
Token: 33	3116	server.exe
Token: SeIncBasePriorityPrivilege	3116	server.exe
Token: 33	3116	server.exe
Token: SeIncBasePriorityPrivilege	3116	server.exe
Token: 33	3116	server.exe
Token: SeIncBasePriorityPrivilege	3116	server.exe
Token: 33	3116	server.exe
Token: SeIncBasePriorityPrivilege	3116	server.exe
Token: 33	3116	server.exe
Token: SeIncBasePriorityPrivilege	3116	server.exe
Token: 33	3116	server.exe
Token: SeIncBasePriorityPrivilege	3116	server.exe
Token: 33	3116	server.exe
Token: SeIncBasePriorityPrivilege	3116	server.exe
Token: 33	3116	server.exe
Token: SeIncBasePriorityPrivilege	3116	server.exe
Token: 33	3116	server.exe
Token: SeIncBasePriorityPrivilege	3116	server.exe
Token: 33	3116	server.exe
Token: SeIncBasePriorityPrivilege	3116	server.exe
Token: 33	3116	server.exe
Token: SeIncBasePriorityPrivilege	3116	server.exe
Token: 33	3116	server.exe
Token: SeIncBasePriorityPrivilege	3116	server.exe
Token: 33	3116	server.exe
Token: SeIncBasePriorityPrivilege	3116	server.exe
Token: 33	3116	server.exe
Token: SeIncBasePriorityPrivilege	3116	server.exe
Token: 33	3116	server.exe
Token: SeIncBasePriorityPrivilege	3116	server.exe
Token: 33	3116	server.exe
Token: SeIncBasePriorityPrivilege	3116	server.exe
Token: 33	3116	server.exe
Token: SeIncBasePriorityPrivilege	3116	server.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3636 wrote to memory of 3116	3636	18a21ee0d1143571864d982af389e2df_JaffaCakes118.exe	83
PID 3636 wrote to memory of 3116	3636	18a21ee0d1143571864d982af389e2df_JaffaCakes118.exe	83
PID 3636 wrote to memory of 3116	3636	18a21ee0d1143571864d982af389e2df_JaffaCakes118.exe	83
PID 3116 wrote to memory of 4992	3116	server.exe	84
PID 3116 wrote to memory of 4992	3116	server.exe	84
PID 3116 wrote to memory of 4992	3116	server.exe	84

C:\Users\Admin\AppData\Local\Temp\18a21ee0d1143571864d982af389e2df_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\18a21ee0d1143571864d982af389e2df_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3636
- 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:3116
- - 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:4992

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

Web Service

1

T1102

Exfiltration

Impact

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Downloads

server.exe

Path C:\Users\Admin\AppData\Local\Temp\server.exe
Size 23KB
SHA256 694b68741d9ce9e85a21b1a8d4c4a8b99276cfe35ee516e540dd93c19c4fc81e
MD5 18a21ee0d1143571864d982af389e2df
SHA1 1ee7413c7782a3d6bc19f4972cf6daf73d60a5fb
SHA512 b31572d81ed86dc666f3de06b863167ab304aa8a2c957d33a27e34efde30037eacc561f3bb6e398fd4c3fd9d5b0899c94682c2d2d37af08f77bc92ab8f8a54cb
SSDEEP 384:H+n2650N3qZbATcjRGC5Eo9D46BgnqUhay1ZmRvR6JZlbw8hqIusZzZGi:gm+71d5XRpcnui
MD5 SHA1 SHA512 SSDEEP

Submit Download

memory/3116-13-0x0000000074A40000-0x0000000074FF1000-memory.dmp

Download

memory/3116-14-0x0000000074A40000-0x0000000074FF1000-memory.dmp

Download

memory/3636-0-0x0000000074A42000-0x0000000074A43000-memory.dmp

Download

memory/3636-1-0x0000000074A40000-0x0000000074FF1000-memory.dmp

Download

memory/3636-2-0x0000000074A40000-0x0000000074FF1000-memory.dmp

Download

memory/3636-12-0x0000000074A40000-0x0000000074FF1000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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