njrat | dbe582ea8db40c129023a2a6167f9f7e152c7f5769de232c89f03d82eb12dcac

General

Target

JaffaCakes118_77463084cfe8a17085553afd3c5f3b50.exe
Size

40KB
MD5

77463084cfe8a17085553afd3c5f3b50
SHA1

216530e6d8d1931e8b593b367bad07b248d18b08
SHA256

dbe582ea8db40c129023a2a6167f9f7e152c7f5769de232c89f03d82eb12dcac
SHA512

be1ba097456e9b0989331684963f9256e1c84a18429f07cc2550566a800c8a747ce5d47c6c792518ab3c0c2ae493a2beb1a8f7e625efabbb2c14a35dff65fc4c
SSDEEP

768:EvAx61ynyduoAzHKfvDQGlZFMelSOMilxG:EQFnNdzHSvz3YO

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
1044	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-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation	JaffaCakes118_77463084cfe8a17085553afd3c5f3b50.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\fa01211964b308bc7340b189ea93f10a.exe	chrome.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\fa01211964b308bc7340b189ea93f10a.exe	chrome.exe

Executes dropped EXE 1 IoCs

pid	Process
3388	chrome.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-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fa01211964b308bc7340b189ea93f10a = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\chrome.exe\" .."	chrome.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\fa01211964b308bc7340b189ea93f10a = "\"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_77463084cfe8a17085553afd3c5f3b50.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	3388	chrome.exe
Token: 33	3388	chrome.exe
Token: SeIncBasePriorityPrivilege	3388	chrome.exe
Token: 33	3388	chrome.exe
Token: SeIncBasePriorityPrivilege	3388	chrome.exe
Token: 33	3388	chrome.exe
Token: SeIncBasePriorityPrivilege	3388	chrome.exe
Token: 33	3388	chrome.exe
Token: SeIncBasePriorityPrivilege	3388	chrome.exe
Token: 33	3388	chrome.exe
Token: SeIncBasePriorityPrivilege	3388	chrome.exe
Token: 33	3388	chrome.exe
Token: SeIncBasePriorityPrivilege	3388	chrome.exe
Token: 33	3388	chrome.exe
Token: SeIncBasePriorityPrivilege	3388	chrome.exe
Token: 33	3388	chrome.exe
Token: SeIncBasePriorityPrivilege	3388	chrome.exe
Token: 33	3388	chrome.exe
Token: SeIncBasePriorityPrivilege	3388	chrome.exe
Token: 33	3388	chrome.exe
Token: SeIncBasePriorityPrivilege	3388	chrome.exe
Token: 33	3388	chrome.exe
Token: SeIncBasePriorityPrivilege	3388	chrome.exe
Token: 33	3388	chrome.exe
Token: SeIncBasePriorityPrivilege	3388	chrome.exe
Token: 33	3388	chrome.exe
Token: SeIncBasePriorityPrivilege	3388	chrome.exe
Token: 33	3388	chrome.exe
Token: SeIncBasePriorityPrivilege	3388	chrome.exe
Token: 33	3388	chrome.exe
Token: SeIncBasePriorityPrivilege	3388	chrome.exe
Token: 33	3388	chrome.exe
Token: SeIncBasePriorityPrivilege	3388	chrome.exe
Token: 33	3388	chrome.exe
Token: SeIncBasePriorityPrivilege	3388	chrome.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3608 wrote to memory of 3388	3608	JaffaCakes118_77463084cfe8a17085553afd3c5f3b50.exe	82
PID 3608 wrote to memory of 3388	3608	JaffaCakes118_77463084cfe8a17085553afd3c5f3b50.exe	82
PID 3608 wrote to memory of 3388	3608	JaffaCakes118_77463084cfe8a17085553afd3c5f3b50.exe	82
PID 3388 wrote to memory of 1044	3388	chrome.exe	83
PID 3388 wrote to memory of 1044	3388	chrome.exe	83
PID 3388 wrote to memory of 1044	3388	chrome.exe	83

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_77463084cfe8a17085553afd3c5f3b50.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_77463084cfe8a17085553afd3c5f3b50.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3608
- C:\Users\Admin\AppData\Local\Temp\chrome.exe
  "C:\Users\Admin\AppData\Local\Temp\chrome.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3388
- - 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:1044

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

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Downloads

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

Filesize
40KB

MD5
77463084cfe8a17085553afd3c5f3b50

SHA1
216530e6d8d1931e8b593b367bad07b248d18b08

SHA256
dbe582ea8db40c129023a2a6167f9f7e152c7f5769de232c89f03d82eb12dcac

SHA512
be1ba097456e9b0989331684963f9256e1c84a18429f07cc2550566a800c8a747ce5d47c6c792518ab3c0c2ae493a2beb1a8f7e625efabbb2c14a35dff65fc4c

Download Submit
memory/3388-12-0x0000000074850000-0x0000000074E01000-memory.dmp

Filesize
5.7MB

Download
memory/3388-14-0x0000000074850000-0x0000000074E01000-memory.dmp

Filesize
5.7MB

Download
memory/3388-16-0x0000000074850000-0x0000000074E01000-memory.dmp

Filesize
5.7MB

Download
memory/3388-17-0x0000000074850000-0x0000000074E01000-memory.dmp

Filesize
5.7MB

Download
memory/3388-18-0x0000000074850000-0x0000000074E01000-memory.dmp

Filesize
5.7MB

Download
memory/3608-0-0x0000000074852000-0x0000000074853000-memory.dmp

Filesize
4KB

Download
memory/3608-1-0x0000000074850000-0x0000000074E01000-memory.dmp

Filesize
5.7MB

Download
memory/3608-2-0x0000000074850000-0x0000000074E01000-memory.dmp

Filesize
5.7MB

Download
memory/3608-13-0x0000000074850000-0x0000000074E01000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads