njrat | 541564913971808d6534f3964b05618f0f649a565a54a1b0ffeb689de90eb3ec

General

Target

JaffaCakes118_6ad538e5a30150b633477e5b75d78690.exe
Size

118KB
MD5

6ad538e5a30150b633477e5b75d78690
SHA1

1d2eea8649b21bfd09038185685ec4b7d37b7c2e
SHA256

541564913971808d6534f3964b05618f0f649a565a54a1b0ffeb689de90eb3ec
SHA512

b48f13f00ea084b262d587c0c61723d0b4ef12c17ae4ca9fe116b7985ced15d6330b605e282c73676853b0d1f006ae59536e13626d183cc834ae61cdfd4c6478
SSDEEP

1536:EgnQ2WXQ27pbwKFnnxImgUDH6myOb7dT2+UQXFcUAvaQbRiUy04M8zmzgsZEZhww:RnQ2WjeS6myY+7vanM8kAhnYI

Score

10^/10

njrat discovery evasion persistence privilege_escalation trojan

Malware Config

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
2944	netsh.exe

Executes dropped EXE 1 IoCs

pid	Process
2204	chrome.exe

Loads dropped DLL 1 IoCs

pid	Process
2348	JaffaCakes118_6ad538e5a30150b633477e5b75d78690.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-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Windows\CurrentVersion\Run\3ae8a0f8f7b4b1dd01b75b818805a8d2 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\chrome.exe\" .."	chrome.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\3ae8a0f8f7b4b1dd01b75b818805a8d2 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\chrome.exe\" .."	chrome.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_6ad538e5a30150b633477e5b75d78690.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	chrome.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

Suspicious use of AdjustPrivilegeToken 35 IoCs

description	pid	Process
Token: SeDebugPrivilege	2204	chrome.exe
Token: 33	2204	chrome.exe
Token: SeIncBasePriorityPrivilege	2204	chrome.exe
Token: 33	2204	chrome.exe
Token: SeIncBasePriorityPrivilege	2204	chrome.exe
Token: 33	2204	chrome.exe
Token: SeIncBasePriorityPrivilege	2204	chrome.exe
Token: 33	2204	chrome.exe
Token: SeIncBasePriorityPrivilege	2204	chrome.exe
Token: 33	2204	chrome.exe
Token: SeIncBasePriorityPrivilege	2204	chrome.exe
Token: 33	2204	chrome.exe
Token: SeIncBasePriorityPrivilege	2204	chrome.exe
Token: 33	2204	chrome.exe
Token: SeIncBasePriorityPrivilege	2204	chrome.exe
Token: 33	2204	chrome.exe
Token: SeIncBasePriorityPrivilege	2204	chrome.exe
Token: 33	2204	chrome.exe
Token: SeIncBasePriorityPrivilege	2204	chrome.exe
Token: 33	2204	chrome.exe
Token: SeIncBasePriorityPrivilege	2204	chrome.exe
Token: 33	2204	chrome.exe
Token: SeIncBasePriorityPrivilege	2204	chrome.exe
Token: 33	2204	chrome.exe
Token: SeIncBasePriorityPrivilege	2204	chrome.exe
Token: 33	2204	chrome.exe
Token: SeIncBasePriorityPrivilege	2204	chrome.exe
Token: 33	2204	chrome.exe
Token: SeIncBasePriorityPrivilege	2204	chrome.exe
Token: 33	2204	chrome.exe
Token: SeIncBasePriorityPrivilege	2204	chrome.exe
Token: 33	2204	chrome.exe
Token: SeIncBasePriorityPrivilege	2204	chrome.exe
Token: 33	2204	chrome.exe
Token: SeIncBasePriorityPrivilege	2204	chrome.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2348 wrote to memory of 2204	2348	JaffaCakes118_6ad538e5a30150b633477e5b75d78690.exe	29
PID 2348 wrote to memory of 2204	2348	JaffaCakes118_6ad538e5a30150b633477e5b75d78690.exe	29
PID 2348 wrote to memory of 2204	2348	JaffaCakes118_6ad538e5a30150b633477e5b75d78690.exe	29
PID 2348 wrote to memory of 2204	2348	JaffaCakes118_6ad538e5a30150b633477e5b75d78690.exe	29
PID 2204 wrote to memory of 2944	2204	chrome.exe	30
PID 2204 wrote to memory of 2944	2204	chrome.exe	30
PID 2204 wrote to memory of 2944	2204	chrome.exe	30
PID 2204 wrote to memory of 2944	2204	chrome.exe	30

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6ad538e5a30150b633477e5b75d78690.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6ad538e5a30150b633477e5b75d78690.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2348
- C:\Users\Admin\AppData\Local\Temp\chrome.exe
  "C:\Users\Admin\AppData\Local\Temp\chrome.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:2204
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\chrome.exe" "chrome.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    - System Location Discovery: System Language Discovery
    PID:2944

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\AppData\Local\Temp\chrome.exe

Filesize
118KB

MD5
6ad538e5a30150b633477e5b75d78690

SHA1
1d2eea8649b21bfd09038185685ec4b7d37b7c2e

SHA256
541564913971808d6534f3964b05618f0f649a565a54a1b0ffeb689de90eb3ec

SHA512
b48f13f00ea084b262d587c0c61723d0b4ef12c17ae4ca9fe116b7985ced15d6330b605e282c73676853b0d1f006ae59536e13626d183cc834ae61cdfd4c6478

Download Submit
memory/2204-11-0x0000000074580000-0x0000000074B2B000-memory.dmp

Filesize
5.7MB

Download
memory/2204-12-0x0000000074580000-0x0000000074B2B000-memory.dmp

Filesize
5.7MB

Download
memory/2204-13-0x0000000074580000-0x0000000074B2B000-memory.dmp

Filesize
5.7MB

Download
memory/2348-0-0x0000000074581000-0x0000000074582000-memory.dmp

Filesize
4KB

Download
memory/2348-1-0x0000000074580000-0x0000000074B2B000-memory.dmp

Filesize
5.7MB

Download
memory/2348-2-0x0000000074580000-0x0000000074B2B000-memory.dmp

Filesize
5.7MB

Download
memory/2348-10-0x0000000074580000-0x0000000074B2B000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads