njrat | 2c6f15e3f38de5b1915c727a71e354b7f22e862e943ad182b16c3f1c1dce0fb3

General

Target

JaffaCakes118_788a4b907dfe8c46a94e8f6b3ab98750.exe
Size

44KB
MD5

788a4b907dfe8c46a94e8f6b3ab98750
SHA1

ade1ea37cbb2bf2cc88edda100f76928ffd1a14a
SHA256

2c6f15e3f38de5b1915c727a71e354b7f22e862e943ad182b16c3f1c1dce0fb3
SHA512

d6a943f1ce6af742dff9a7c57cf8c1f38825560d31e11944206b48223993b30536be5642ec5d339cfb0bd1d6ed5ce5b7c09ef0c7f40d3f8d014098edad5d5c5f
SSDEEP

768:ulZ0lBGZHOfEFZioSPNwRihxXQSqeJtr:/qHOfE+eRoVtr

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
4760	netsh.exe

Checks computer location settings 2 TTPs 2 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-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation	JaffaCakes118_788a4b907dfe8c46a94e8f6b3ab98750.exe
Key value queried	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation	UWvD9nUK76kw7Nf4o3dk.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\1e53089ba3608119eab8307d03cab81d.exe	csrss.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\1e53089ba3608119eab8307d03cab81d.exe	csrss.exe

Executes dropped EXE 2 IoCs

pid	Process
2688	UWvD9nUK76kw7Nf4o3dk.exe
4916	csrss.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-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\1e53089ba3608119eab8307d03cab81d = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\csrss.exe\" .."	csrss.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\1e53089ba3608119eab8307d03cab81d = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\csrss.exe\" .."	csrss.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 4 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_788a4b907dfe8c46a94e8f6b3ab98750.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	UWvD9nUK76kw7Nf4o3dk.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	csrss.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

Suspicious use of AdjustPrivilegeToken 35 IoCs

description	pid	Process
Token: SeDebugPrivilege	4916	csrss.exe
Token: 33	4916	csrss.exe
Token: SeIncBasePriorityPrivilege	4916	csrss.exe
Token: 33	4916	csrss.exe
Token: SeIncBasePriorityPrivilege	4916	csrss.exe
Token: 33	4916	csrss.exe
Token: SeIncBasePriorityPrivilege	4916	csrss.exe
Token: 33	4916	csrss.exe
Token: SeIncBasePriorityPrivilege	4916	csrss.exe
Token: 33	4916	csrss.exe
Token: SeIncBasePriorityPrivilege	4916	csrss.exe
Token: 33	4916	csrss.exe
Token: SeIncBasePriorityPrivilege	4916	csrss.exe
Token: 33	4916	csrss.exe
Token: SeIncBasePriorityPrivilege	4916	csrss.exe
Token: 33	4916	csrss.exe
Token: SeIncBasePriorityPrivilege	4916	csrss.exe
Token: 33	4916	csrss.exe
Token: SeIncBasePriorityPrivilege	4916	csrss.exe
Token: 33	4916	csrss.exe
Token: SeIncBasePriorityPrivilege	4916	csrss.exe
Token: 33	4916	csrss.exe
Token: SeIncBasePriorityPrivilege	4916	csrss.exe
Token: 33	4916	csrss.exe
Token: SeIncBasePriorityPrivilege	4916	csrss.exe
Token: 33	4916	csrss.exe
Token: SeIncBasePriorityPrivilege	4916	csrss.exe
Token: 33	4916	csrss.exe
Token: SeIncBasePriorityPrivilege	4916	csrss.exe
Token: 33	4916	csrss.exe
Token: SeIncBasePriorityPrivilege	4916	csrss.exe
Token: 33	4916	csrss.exe
Token: SeIncBasePriorityPrivilege	4916	csrss.exe
Token: 33	4916	csrss.exe
Token: SeIncBasePriorityPrivilege	4916	csrss.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 372 wrote to memory of 2688	372	JaffaCakes118_788a4b907dfe8c46a94e8f6b3ab98750.exe	83
PID 372 wrote to memory of 2688	372	JaffaCakes118_788a4b907dfe8c46a94e8f6b3ab98750.exe	83
PID 372 wrote to memory of 2688	372	JaffaCakes118_788a4b907dfe8c46a94e8f6b3ab98750.exe	83
PID 2688 wrote to memory of 4916	2688	UWvD9nUK76kw7Nf4o3dk.exe	85
PID 2688 wrote to memory of 4916	2688	UWvD9nUK76kw7Nf4o3dk.exe	85
PID 2688 wrote to memory of 4916	2688	UWvD9nUK76kw7Nf4o3dk.exe	85
PID 4916 wrote to memory of 4760	4916	csrss.exe	86
PID 4916 wrote to memory of 4760	4916	csrss.exe	86
PID 4916 wrote to memory of 4760	4916	csrss.exe	86

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_788a4b907dfe8c46a94e8f6b3ab98750.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_788a4b907dfe8c46a94e8f6b3ab98750.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:372
- C:\Users\Admin\AppData\Local\Temp\UWvD9nUK76kw7Nf4o3dk.exe
  "C:\Users\Admin\AppData\Local\Temp\UWvD9nUK76kw7Nf4o3dk.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2688
- - C:\Users\Admin\AppData\Local\Temp\csrss.exe
    "C:\Users\Admin\AppData\Local\Temp\csrss.exe"
    3⤵
    - 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:4916
  - - C:\Windows\SysWOW64\netsh.exe
      netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\csrss.exe" "csrss.exe" ENABLE
      4⤵
      Modifies Windows Firewall
      Event Triggered Execution: Netsh Helper DLL
      System Location Discovery: System Language Discovery
      PID:4760

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\UWvD9nUK76kw7Nf4o3dk.exe

Filesize
23KB

MD5
47616fa9dbe0596cf210db6254276dc9

SHA1
d6b656e5694fb95ad97a15bd1085e8c4cd753dec

SHA256
770233731caaa55c2beefc7011a9cd68a8d993040c2779f798ca8540db2db8e2

SHA512
c70305649aaf97ac4a495bb28bda1d8da57eeca4e5bbc3d1a040682cc219ab08ec39a99d6217cc2551f5145a4087d982fc9c797e2525ab80d8032c5b1a51bbd7

Download Submit
memory/372-0-0x0000000075152000-0x0000000075153000-memory.dmp

Filesize
4KB

Download
memory/372-1-0x0000000075150000-0x0000000075701000-memory.dmp

Filesize
5.7MB

Download
memory/372-2-0x0000000075150000-0x0000000075701000-memory.dmp

Filesize
5.7MB

Download
memory/372-13-0x0000000075150000-0x0000000075701000-memory.dmp

Filesize
5.7MB

Download
memory/2688-14-0x0000000075150000-0x0000000075701000-memory.dmp

Filesize
5.7MB

Download
memory/2688-15-0x0000000075150000-0x0000000075701000-memory.dmp

Filesize
5.7MB

Download
memory/2688-16-0x0000000075150000-0x0000000075701000-memory.dmp

Filesize
5.7MB

Download
memory/2688-27-0x0000000075150000-0x0000000075701000-memory.dmp

Filesize
5.7MB

Download
memory/4916-26-0x0000000075150000-0x0000000075701000-memory.dmp

Filesize
5.7MB

Download
memory/4916-29-0x0000000075150000-0x0000000075701000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads