njrat | 0a0982e2e395debb82f0e834a9a5a8a5bb9c3e28ed8d689b07f4ea4f6d6fbe1f

General

Target

JaffaCakes118_a7f56e74acb142c70bdedbf6ca88a2ab.exe
Size

65KB
MD5

a7f56e74acb142c70bdedbf6ca88a2ab
SHA1

f3b0f066184417e98e4c9ecd3523a3ee1354b36a
SHA256

0a0982e2e395debb82f0e834a9a5a8a5bb9c3e28ed8d689b07f4ea4f6d6fbe1f
SHA512

bf3f1f445619edb2a1476a46e8874a716e9fd2e46da1818d83084cc1944554655860a384a3f303915d100f3dddc92af0df40de4c06b576c4c9f1d14cfbf3a511
SSDEEP

1536:tYgyythn0smQmXFhaNcSFDx6DBY6dOATmLR1vxl8:SgyyznbmQAhe/Fx2HBTmLDvxl8

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
1816	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_a7f56e74acb142c70bdedbf6ca88a2ab.exe

Executes dropped EXE 1 IoCs

pid	Process
3876	Server.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 queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key opened	\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_a7f56e74acb142c70bdedbf6ca88a2ab.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Server.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	JaffaCakes118_a7f56e74acb142c70bdedbf6ca88a2ab.exe

Suspicious use of AdjustPrivilegeToken 35 IoCs

description	pid	Process
Token: SeDebugPrivilege	3876	Server.exe
Token: 33	3876	Server.exe
Token: SeIncBasePriorityPrivilege	3876	Server.exe
Token: 33	3876	Server.exe
Token: SeIncBasePriorityPrivilege	3876	Server.exe
Token: 33	3876	Server.exe
Token: SeIncBasePriorityPrivilege	3876	Server.exe
Token: 33	3876	Server.exe
Token: SeIncBasePriorityPrivilege	3876	Server.exe
Token: 33	3876	Server.exe
Token: SeIncBasePriorityPrivilege	3876	Server.exe
Token: 33	3876	Server.exe
Token: SeIncBasePriorityPrivilege	3876	Server.exe
Token: 33	3876	Server.exe
Token: SeIncBasePriorityPrivilege	3876	Server.exe
Token: 33	3876	Server.exe
Token: SeIncBasePriorityPrivilege	3876	Server.exe
Token: 33	3876	Server.exe
Token: SeIncBasePriorityPrivilege	3876	Server.exe
Token: 33	3876	Server.exe
Token: SeIncBasePriorityPrivilege	3876	Server.exe
Token: 33	3876	Server.exe
Token: SeIncBasePriorityPrivilege	3876	Server.exe
Token: 33	3876	Server.exe
Token: SeIncBasePriorityPrivilege	3876	Server.exe
Token: 33	3876	Server.exe
Token: SeIncBasePriorityPrivilege	3876	Server.exe
Token: 33	3876	Server.exe
Token: SeIncBasePriorityPrivilege	3876	Server.exe
Token: 33	3876	Server.exe
Token: SeIncBasePriorityPrivilege	3876	Server.exe
Token: 33	3876	Server.exe
Token: SeIncBasePriorityPrivilege	3876	Server.exe
Token: 33	3876	Server.exe
Token: SeIncBasePriorityPrivilege	3876	Server.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 824 wrote to memory of 3876	824	JaffaCakes118_a7f56e74acb142c70bdedbf6ca88a2ab.exe	82
PID 824 wrote to memory of 3876	824	JaffaCakes118_a7f56e74acb142c70bdedbf6ca88a2ab.exe	82
PID 824 wrote to memory of 3876	824	JaffaCakes118_a7f56e74acb142c70bdedbf6ca88a2ab.exe	82
PID 3876 wrote to memory of 1816	3876	Server.exe	87
PID 3876 wrote to memory of 1816	3876	Server.exe	87
PID 3876 wrote to memory of 1816	3876	Server.exe	87

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_a7f56e74acb142c70bdedbf6ca88a2ab.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_a7f56e74acb142c70bdedbf6ca88a2ab.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:824
- C:\Users\Admin\AppData\Local\Temp\Server.exe
  "C:\Users\Admin\AppData\Local\Temp\Server.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3876
- - 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:1816

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

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

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

1

T1562.004

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\Server.exe

Filesize
37KB

MD5
d2ca6206cfbbb1d201fd0bb4e7d29a26

SHA1
b6dc2126f414e9a5364819dc913a79032dddc192

SHA256
e7237cb2de5ef429af82e225f914227a28607ac3ccfbbfb0bbe89b421fe4a90e

SHA512
c83f9e5cb5282f1f98db471e3f66e6422f551abde287d1bf8dfbeac18374e2a5e90c688be3030578ea95ecc08f142ae223859181f94786137f0bf1390a5a1f3f

Download Submit
memory/824-0-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download
memory/3876-34-0x0000000075632000-0x0000000075633000-memory.dmp

Filesize
4KB

Download
memory/3876-35-0x0000000075630000-0x0000000075BE1000-memory.dmp

Filesize
5.7MB

Download
memory/3876-36-0x0000000075630000-0x0000000075BE1000-memory.dmp

Filesize
5.7MB

Download
memory/3876-37-0x0000000075632000-0x0000000075633000-memory.dmp

Filesize
4KB

Download
memory/3876-38-0x0000000075630000-0x0000000075BE1000-memory.dmp

Filesize
5.7MB

Download
memory/3876-39-0x0000000075630000-0x0000000075BE1000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads