njrat | 7e8890718f9870330da3f41b7ba683672eec490658616bbe85c40272d0cb61d6

General

Target

Apb.exe
Size

317KB
MD5

34ba426af267b9963cd5e8766b733472
SHA1

abf47a7cd5c5e16ff14592320e2f74d0ac1f06c4
SHA256

789e97a5c99efcbcb3cad73b0ed7e69eb7dfa525b1c098b6e47f607823cefecb
SHA512

3d1a9fd15593801d1b678036a49394e608fb30e4bb6405f3a6ef972652d22cd9d4132c7ad0140d38ef8895fc5d66d13f42e972cab9ffc629237ce193a312a455
SSDEEP

6144:jPgG6aJGObkpAvjnQsmYGoygDBa4RFCpO:jPgG6KGOiAzFzG0DBQI

Score

10^/10

njrat hacked discovery evasion persistence privilege_escalation trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

HacKed

C2

sina132.no-ip.biz:5552

Mutex

657fce770b32d2b3a4cf7623dcfe841f

Attributes

reg_key
657fce770b32d2b3a4cf7623dcfe841f
splitter
|'|'|

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

Processes:

netsh.exe

pid process

1628 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

Processes:

Apb.exe

description ioc process

Key value queried \REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation Apb.exe

pid	process
1628	netsh.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation	Apb.exe

Drops startup file 2 IoCs

Processes:

svhostt.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\657fce770b32d2b3a4cf7623dcfe841f.exe	svhostt.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\657fce770b32d2b3a4cf7623dcfe841f.exe	svhostt.exe

Executes dropped EXE 1 IoCs

Processes:

svhostt.exe

pid process

232 svhostt.exe

pid	process
232	svhostt.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

svhostt.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\657fce770b32d2b3a4cf7623dcfe841f = "\"C:\\Windows\\svhostt.exe\" .."	svhostt.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\657fce770b32d2b3a4cf7623dcfe841f = "\"C:\\Windows\\svhostt.exe\" .."	svhostt.exe

Drops file in Windows directory 1 IoCs

Processes:

Apb.exe

description ioc process

File created C:\Windows\svhostt.exe Apb.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

description	ioc	process
File created	C:\Windows\svhostt.exe	Apb.exe

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

Processes:

netsh.exe

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

Processes:

Apb.exesvhostt.exenetsh.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Apb.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svhostt.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

Suspicious use of AdjustPrivilegeToken 33 IoCs

Processes:

svhostt.exe

description	pid	process
Token: SeDebugPrivilege	232	svhostt.exe
Token: 33	232	svhostt.exe
Token: SeIncBasePriorityPrivilege	232	svhostt.exe
Token: 33	232	svhostt.exe
Token: SeIncBasePriorityPrivilege	232	svhostt.exe
Token: 33	232	svhostt.exe
Token: SeIncBasePriorityPrivilege	232	svhostt.exe
Token: 33	232	svhostt.exe
Token: SeIncBasePriorityPrivilege	232	svhostt.exe
Token: 33	232	svhostt.exe
Token: SeIncBasePriorityPrivilege	232	svhostt.exe
Token: 33	232	svhostt.exe
Token: SeIncBasePriorityPrivilege	232	svhostt.exe
Token: 33	232	svhostt.exe
Token: SeIncBasePriorityPrivilege	232	svhostt.exe
Token: 33	232	svhostt.exe
Token: SeIncBasePriorityPrivilege	232	svhostt.exe
Token: 33	232	svhostt.exe
Token: SeIncBasePriorityPrivilege	232	svhostt.exe
Token: 33	232	svhostt.exe
Token: SeIncBasePriorityPrivilege	232	svhostt.exe
Token: 33	232	svhostt.exe
Token: SeIncBasePriorityPrivilege	232	svhostt.exe
Token: 33	232	svhostt.exe
Token: SeIncBasePriorityPrivilege	232	svhostt.exe
Token: 33	232	svhostt.exe
Token: SeIncBasePriorityPrivilege	232	svhostt.exe
Token: 33	232	svhostt.exe
Token: SeIncBasePriorityPrivilege	232	svhostt.exe
Token: 33	232	svhostt.exe
Token: SeIncBasePriorityPrivilege	232	svhostt.exe
Token: 33	232	svhostt.exe
Token: SeIncBasePriorityPrivilege	232	svhostt.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

Apb.exesvhostt.exe

description	pid	process	target process
PID 1952 wrote to memory of 232	1952	Apb.exe	svhostt.exe
PID 1952 wrote to memory of 232	1952	Apb.exe	svhostt.exe
PID 1952 wrote to memory of 232	1952	Apb.exe	svhostt.exe
PID 232 wrote to memory of 1628	232	svhostt.exe	netsh.exe
PID 232 wrote to memory of 1628	232	svhostt.exe	netsh.exe
PID 232 wrote to memory of 1628	232	svhostt.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\Apb.exe
"C:\Users\Admin\AppData\Local\Temp\Apb.exe"
1⤵
- Checks computer location settings
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1952
- C:\Windows\svhostt.exe
  "C:\Windows\svhostt.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:232
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Windows\svhostt.exe" "svhostt.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    - System Location Discovery: System Language Discovery
    PID:1628

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:\Windows\svhostt.exe

Filesize
317KB

MD5
34ba426af267b9963cd5e8766b733472

SHA1
abf47a7cd5c5e16ff14592320e2f74d0ac1f06c4

SHA256
789e97a5c99efcbcb3cad73b0ed7e69eb7dfa525b1c098b6e47f607823cefecb

SHA512
3d1a9fd15593801d1b678036a49394e608fb30e4bb6405f3a6ef972652d22cd9d4132c7ad0140d38ef8895fc5d66d13f42e972cab9ffc629237ce193a312a455

Download Submit
memory/232-25-0x0000000074920000-0x00000000750D0000-memory.dmp

Filesize
7.7MB

Download
memory/232-24-0x0000000074920000-0x00000000750D0000-memory.dmp

Filesize
7.7MB

Download
memory/232-22-0x0000000074920000-0x00000000750D0000-memory.dmp

Filesize
7.7MB

Download
memory/232-20-0x0000000074920000-0x00000000750D0000-memory.dmp

Filesize
7.7MB

Download
memory/1952-3-0x0000000004EB0000-0x0000000004F42000-memory.dmp

Filesize
584KB

Download
memory/1952-6-0x0000000006520000-0x00000000065BC000-memory.dmp

Filesize
624KB

Download
memory/1952-7-0x0000000005430000-0x000000000543C000-memory.dmp

Filesize
48KB

Download
memory/1952-5-0x0000000074920000-0x00000000750D0000-memory.dmp

Filesize
7.7MB

Download
memory/1952-4-0x0000000005040000-0x000000000504A000-memory.dmp

Filesize
40KB

Download
memory/1952-21-0x0000000074920000-0x00000000750D0000-memory.dmp

Filesize
7.7MB

Download
memory/1952-0-0x000000007492E000-0x000000007492F000-memory.dmp

Filesize
4KB

Download
memory/1952-2-0x0000000005460000-0x0000000005A04000-memory.dmp

Filesize
5.6MB

Download
memory/1952-1-0x0000000000440000-0x0000000000496000-memory.dmp

Filesize
344KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads