njrat | b1d13fcaa3cd5cabcc1d83e8ac319a3dd8ce2c25ecd205b34d77aef5ae2730fa

General

Target

JaffaCakes118_66c537ffd290bb368c45fe782d6df350.exe
Size

33KB
MD5

66c537ffd290bb368c45fe782d6df350
SHA1

0182a5d2e740c318b3f1b72cdf213868f06c9542
SHA256

b1d13fcaa3cd5cabcc1d83e8ac319a3dd8ce2c25ecd205b34d77aef5ae2730fa
SHA512

7b5a00292d6794014c7f0938e75f52078bf54755f6fb70573764f67ec728482c99963c909f805792c2472d2d817c85707be94b820a23b55933f0612ac1ae9b98
SSDEEP

384:X2sfbuhap6wHHrw72AKAGRzq/pqoeLlKsppc2jmzVMIl/EsPHye+AVzFSsCdD8t3:XO887zKdRJo/GpaRzH+YzNC9W4C

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
1584	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-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation	JaffaCakes118_66c537ffd290bb368c45fe782d6df350.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\3641942b8b65147783f95d51de6c3343.exe	trojan.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\3641942b8b65147783f95d51de6c3343.exe	trojan.exe

Executes dropped EXE 1 IoCs

pid	Process
696	trojan.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-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\3641942b8b65147783f95d51de6c3343 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\trojan.exe\" .."	trojan.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\3641942b8b65147783f95d51de6c3343 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\trojan.exe\" .."	trojan.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	trojan.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_66c537ffd290bb368c45fe782d6df350.exe

Suspicious use of AdjustPrivilegeToken 35 IoCs

description	pid	Process
Token: SeDebugPrivilege	696	trojan.exe
Token: 33	696	trojan.exe
Token: SeIncBasePriorityPrivilege	696	trojan.exe
Token: 33	696	trojan.exe
Token: SeIncBasePriorityPrivilege	696	trojan.exe
Token: 33	696	trojan.exe
Token: SeIncBasePriorityPrivilege	696	trojan.exe
Token: 33	696	trojan.exe
Token: SeIncBasePriorityPrivilege	696	trojan.exe
Token: 33	696	trojan.exe
Token: SeIncBasePriorityPrivilege	696	trojan.exe
Token: 33	696	trojan.exe
Token: SeIncBasePriorityPrivilege	696	trojan.exe
Token: 33	696	trojan.exe
Token: SeIncBasePriorityPrivilege	696	trojan.exe
Token: 33	696	trojan.exe
Token: SeIncBasePriorityPrivilege	696	trojan.exe
Token: 33	696	trojan.exe
Token: SeIncBasePriorityPrivilege	696	trojan.exe
Token: 33	696	trojan.exe
Token: SeIncBasePriorityPrivilege	696	trojan.exe
Token: 33	696	trojan.exe
Token: SeIncBasePriorityPrivilege	696	trojan.exe
Token: 33	696	trojan.exe
Token: SeIncBasePriorityPrivilege	696	trojan.exe
Token: 33	696	trojan.exe
Token: SeIncBasePriorityPrivilege	696	trojan.exe
Token: 33	696	trojan.exe
Token: SeIncBasePriorityPrivilege	696	trojan.exe
Token: 33	696	trojan.exe
Token: SeIncBasePriorityPrivilege	696	trojan.exe
Token: 33	696	trojan.exe
Token: SeIncBasePriorityPrivilege	696	trojan.exe
Token: 33	696	trojan.exe
Token: SeIncBasePriorityPrivilege	696	trojan.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3868 wrote to memory of 696	3868	JaffaCakes118_66c537ffd290bb368c45fe782d6df350.exe	82
PID 3868 wrote to memory of 696	3868	JaffaCakes118_66c537ffd290bb368c45fe782d6df350.exe	82
PID 3868 wrote to memory of 696	3868	JaffaCakes118_66c537ffd290bb368c45fe782d6df350.exe	82
PID 696 wrote to memory of 1584	696	trojan.exe	83
PID 696 wrote to memory of 1584	696	trojan.exe	83
PID 696 wrote to memory of 1584	696	trojan.exe	83

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_66c537ffd290bb368c45fe782d6df350.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_66c537ffd290bb368c45fe782d6df350.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3868
- C:\Users\Admin\AppData\Local\Temp\trojan.exe
  "C:\Users\Admin\AppData\Local\Temp\trojan.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:696
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\trojan.exe" "trojan.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    - System Location Discovery: System Language Discovery
    PID:1584

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\e653d73e45833b6c

Filesize
8B

MD5
d714a7c0fd53a8b162715129b5c81ae5

SHA1
84d608a3c0e492a5f98aba75eb2fda58f729862f

SHA256
d41e3eacd41d427a8896dd12dead8c561387ad6d6bd5cbaa90cf09533b27fd81

SHA512
4d56ac4dbba1b4e2ce19f149bc428f13ee1cc2c2195f18910636c02db5dcf7ebf527019ab9d1f23c791e4a6bc5c7d5efdc436221c8462d0a7f07f2c1bd825265

Download Submit
C:\Users\Admin\AppData\Local\Temp\trojan.exe

Filesize
33KB

MD5
66c537ffd290bb368c45fe782d6df350

SHA1
0182a5d2e740c318b3f1b72cdf213868f06c9542

SHA256
b1d13fcaa3cd5cabcc1d83e8ac319a3dd8ce2c25ecd205b34d77aef5ae2730fa

SHA512
7b5a00292d6794014c7f0938e75f52078bf54755f6fb70573764f67ec728482c99963c909f805792c2472d2d817c85707be94b820a23b55933f0612ac1ae9b98

Download Submit
memory/696-14-0x0000000075400000-0x00000000759B1000-memory.dmp

Filesize
5.7MB

Download
memory/696-16-0x0000000075400000-0x00000000759B1000-memory.dmp

Filesize
5.7MB

Download
memory/696-18-0x0000000075400000-0x00000000759B1000-memory.dmp

Filesize
5.7MB

Download
memory/3868-0-0x0000000075402000-0x0000000075403000-memory.dmp

Filesize
4KB

Download
memory/3868-1-0x0000000075400000-0x00000000759B1000-memory.dmp

Filesize
5.7MB

Download
memory/3868-2-0x0000000075400000-0x00000000759B1000-memory.dmp

Filesize
5.7MB

Download
memory/3868-13-0x0000000075400000-0x00000000759B1000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads