njrat | eda4271057ea7e794385758d7dc8b9caa84dddb33aa4736c6bab6b4e26989c35

General

Target

a4185c129f1180fbcc31930f88c115e0N.exe
Size

84KB
MD5

a4185c129f1180fbcc31930f88c115e0
SHA1

241c572d34c0b8605ab9a0899fa0c0f6617215f5
SHA256

eda4271057ea7e794385758d7dc8b9caa84dddb33aa4736c6bab6b4e26989c35
SHA512

fc04ddccafacaa374f6ed7b77e38a07cc460f5e61416995a94ba4a42d2c5b67e8dfae2edf7e39ec454b14759a13d8e7ed29755ce932a954e5adb7a384a7479a4
SSDEEP

1536:CQ6/VKyx0RWmusniDoo6dM/67j93zrAGyNkG:X6TuUm2jR67j93zrAGyNkG

Score

10^/10

njrat anakim discovery evasion persistence privilege_escalation trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

Anakim

C2

127.0.0.1:5552

Mutex

66b5284271358c0b2cfc6afda2eab063

Attributes

reg_key
66b5284271358c0b2cfc6afda2eab063
splitter
|'|'|

Signatures

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
676	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-1-5-21-945322488-2060912225-3527527000-1000\Control Panel\International\Geo\Nation	a4185c129f1180fbcc31930f88c115e0N.exe

Executes dropped EXE 1 IoCs

pid	Process
864	bhbd.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-1-5-21-945322488-2060912225-3527527000-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\66b5284271358c0b2cfc6afda2eab063 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\bhbd.exe\" .."	bhbd.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\66b5284271358c0b2cfc6afda2eab063 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\bhbd.exe\" .."	bhbd.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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a4185c129f1180fbcc31930f88c115e0N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	bhbd.exe

Suspicious use of AdjustPrivilegeToken 27 IoCs

description	pid	Process
Token: SeDebugPrivilege	864	bhbd.exe
Token: 33	864	bhbd.exe
Token: SeIncBasePriorityPrivilege	864	bhbd.exe
Token: 33	864	bhbd.exe
Token: SeIncBasePriorityPrivilege	864	bhbd.exe
Token: 33	864	bhbd.exe
Token: SeIncBasePriorityPrivilege	864	bhbd.exe
Token: 33	864	bhbd.exe
Token: SeIncBasePriorityPrivilege	864	bhbd.exe
Token: 33	864	bhbd.exe
Token: SeIncBasePriorityPrivilege	864	bhbd.exe
Token: 33	864	bhbd.exe
Token: SeIncBasePriorityPrivilege	864	bhbd.exe
Token: 33	864	bhbd.exe
Token: SeIncBasePriorityPrivilege	864	bhbd.exe
Token: 33	864	bhbd.exe
Token: SeIncBasePriorityPrivilege	864	bhbd.exe
Token: 33	864	bhbd.exe
Token: SeIncBasePriorityPrivilege	864	bhbd.exe
Token: 33	864	bhbd.exe
Token: SeIncBasePriorityPrivilege	864	bhbd.exe
Token: 33	864	bhbd.exe
Token: SeIncBasePriorityPrivilege	864	bhbd.exe
Token: 33	864	bhbd.exe
Token: SeIncBasePriorityPrivilege	864	bhbd.exe
Token: 33	864	bhbd.exe
Token: SeIncBasePriorityPrivilege	864	bhbd.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4560 wrote to memory of 864	4560	a4185c129f1180fbcc31930f88c115e0N.exe	92
PID 4560 wrote to memory of 864	4560	a4185c129f1180fbcc31930f88c115e0N.exe	92
PID 4560 wrote to memory of 864	4560	a4185c129f1180fbcc31930f88c115e0N.exe	92
PID 864 wrote to memory of 676	864	bhbd.exe	95
PID 864 wrote to memory of 676	864	bhbd.exe	95
PID 864 wrote to memory of 676	864	bhbd.exe	95

C:\Users\Admin\AppData\Local\Temp\a4185c129f1180fbcc31930f88c115e0N.exe
"C:\Users\Admin\AppData\Local\Temp\a4185c129f1180fbcc31930f88c115e0N.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4560
- C:\Users\Admin\AppData\Local\Temp\bhbd.exe
  "C:\Users\Admin\AppData\Local\Temp\bhbd.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:864
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\bhbd.exe" "bhbd.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    - System Location Discovery: System Language Discovery
    PID:676

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\bhbd.exe

Filesize
84KB

MD5
a4185c129f1180fbcc31930f88c115e0

SHA1
241c572d34c0b8605ab9a0899fa0c0f6617215f5

SHA256
eda4271057ea7e794385758d7dc8b9caa84dddb33aa4736c6bab6b4e26989c35

SHA512
fc04ddccafacaa374f6ed7b77e38a07cc460f5e61416995a94ba4a42d2c5b67e8dfae2edf7e39ec454b14759a13d8e7ed29755ce932a954e5adb7a384a7479a4

Download Submit
memory/864-25-0x0000000074430000-0x0000000074BE0000-memory.dmp

Filesize
7.7MB

Download
memory/864-24-0x0000000074430000-0x0000000074BE0000-memory.dmp

Filesize
7.7MB

Download
memory/864-23-0x0000000005780000-0x000000000578A000-memory.dmp

Filesize
40KB

Download
memory/864-22-0x0000000005810000-0x00000000058A2000-memory.dmp

Filesize
584KB

Download
memory/864-21-0x0000000074430000-0x0000000074BE0000-memory.dmp

Filesize
7.7MB

Download
memory/864-19-0x0000000074430000-0x0000000074BE0000-memory.dmp

Filesize
7.7MB

Download
memory/4560-3-0x0000000004AB0000-0x0000000004ABC000-memory.dmp

Filesize
48KB

Download
memory/4560-20-0x0000000074430000-0x0000000074BE0000-memory.dmp

Filesize
7.7MB

Download
memory/4560-6-0x000000000AE40000-0x000000000B3E4000-memory.dmp

Filesize
5.6MB

Download
memory/4560-5-0x0000000074430000-0x0000000074BE0000-memory.dmp

Filesize
7.7MB

Download
memory/4560-4-0x000000000A7F0000-0x000000000A88C000-memory.dmp

Filesize
624KB

Download
memory/4560-0-0x000000007443E000-0x000000007443F000-memory.dmp

Filesize
4KB

Download
memory/4560-2-0x0000000002A90000-0x0000000002A96000-memory.dmp

Filesize
24KB

Download
memory/4560-1-0x00000000006C0000-0x00000000006DC000-memory.dmp

Filesize
112KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads