njrat | 56239d28dda750a7b9f5eb0d7ec7a72cd4cfb4cb21e5c1e43a8893fa303b2a62

General

Target

56239d28dda750a7b9f5eb0d7ec7a72cd4cfb4cb21e5c1e43a8893fa303b2a62.exe
Size

291KB
MD5

8e8f6ffd1c602b7c00ba2e87319fe83e
SHA1

03ebc5f035c06abb8b66c5d47fd41d43d6b6035b
SHA256

56239d28dda750a7b9f5eb0d7ec7a72cd4cfb4cb21e5c1e43a8893fa303b2a62
SHA512

d70c5220ef7071f0513e9e7436b42c093dbc298be2ee978a7795cfd6552693f9f006c26f00f6e217cfbae5904d15b840baa12409f2eaaf8f03ec8d71cdd11422
SSDEEP

6144:L5b5bjevaup+gXzefbnGIudk/6X44yvVe+RTPzO:NbJcPSjn8q6oTteeC

Score

10^/10

njrat chorom discovery evasion persistence privilege_escalation trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

chorom

C2

ahmedstar123.ddns.net:1177

Mutex

5fa843546065a766a9db244b1f33ea6e

Attributes

reg_key
5fa843546065a766a9db244b1f33ea6e
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

4512 netsh.exe

pid	process
4512	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:

56239d28dda750a7b9f5eb0d7ec7a72cd4cfb4cb21e5c1e43a8893fa303b2a62.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation	56239d28dda750a7b9f5eb0d7ec7a72cd4cfb4cb21e5c1e43a8893fa303b2a62.exe

Drops startup file 2 IoCs

Processes:

server.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\5fa843546065a766a9db244b1f33ea6e.exe	server.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\5fa843546065a766a9db244b1f33ea6e.exe	server.exe

Executes dropped EXE 1 IoCs

Processes:

server.exe

pid process

2360 server.exe

pid	process
2360	server.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

server.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\5fa843546065a766a9db244b1f33ea6e = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .."	server.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\5fa843546065a766a9db244b1f33ea6e = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .."	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

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:

server.exenetsh.exe56239d28dda750a7b9f5eb0d7ec7a72cd4cfb4cb21e5c1e43a8893fa303b2a62.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	server.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	56239d28dda750a7b9f5eb0d7ec7a72cd4cfb4cb21e5c1e43a8893fa303b2a62.exe

Suspicious use of AdjustPrivilegeToken 33 IoCs

Processes:

server.exe

description	pid	process
Token: SeDebugPrivilege	2360	server.exe
Token: 33	2360	server.exe
Token: SeIncBasePriorityPrivilege	2360	server.exe
Token: 33	2360	server.exe
Token: SeIncBasePriorityPrivilege	2360	server.exe
Token: 33	2360	server.exe
Token: SeIncBasePriorityPrivilege	2360	server.exe
Token: 33	2360	server.exe
Token: SeIncBasePriorityPrivilege	2360	server.exe
Token: 33	2360	server.exe
Token: SeIncBasePriorityPrivilege	2360	server.exe
Token: 33	2360	server.exe
Token: SeIncBasePriorityPrivilege	2360	server.exe
Token: 33	2360	server.exe
Token: SeIncBasePriorityPrivilege	2360	server.exe
Token: 33	2360	server.exe
Token: SeIncBasePriorityPrivilege	2360	server.exe
Token: 33	2360	server.exe
Token: SeIncBasePriorityPrivilege	2360	server.exe
Token: 33	2360	server.exe
Token: SeIncBasePriorityPrivilege	2360	server.exe
Token: 33	2360	server.exe
Token: SeIncBasePriorityPrivilege	2360	server.exe
Token: 33	2360	server.exe
Token: SeIncBasePriorityPrivilege	2360	server.exe
Token: 33	2360	server.exe
Token: SeIncBasePriorityPrivilege	2360	server.exe
Token: 33	2360	server.exe
Token: SeIncBasePriorityPrivilege	2360	server.exe
Token: 33	2360	server.exe
Token: SeIncBasePriorityPrivilege	2360	server.exe
Token: 33	2360	server.exe
Token: SeIncBasePriorityPrivilege	2360	server.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

56239d28dda750a7b9f5eb0d7ec7a72cd4cfb4cb21e5c1e43a8893fa303b2a62.exeserver.exe

description	pid	process	target process
PID 4448 wrote to memory of 2360	4448	56239d28dda750a7b9f5eb0d7ec7a72cd4cfb4cb21e5c1e43a8893fa303b2a62.exe	server.exe
PID 4448 wrote to memory of 2360	4448	56239d28dda750a7b9f5eb0d7ec7a72cd4cfb4cb21e5c1e43a8893fa303b2a62.exe	server.exe
PID 4448 wrote to memory of 2360	4448	56239d28dda750a7b9f5eb0d7ec7a72cd4cfb4cb21e5c1e43a8893fa303b2a62.exe	server.exe
PID 2360 wrote to memory of 4512	2360	server.exe	netsh.exe
PID 2360 wrote to memory of 4512	2360	server.exe	netsh.exe
PID 2360 wrote to memory of 4512	2360	server.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\56239d28dda750a7b9f5eb0d7ec7a72cd4cfb4cb21e5c1e43a8893fa303b2a62.exe
"C:\Users\Admin\AppData\Local\Temp\56239d28dda750a7b9f5eb0d7ec7a72cd4cfb4cb21e5c1e43a8893fa303b2a62.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4448
- C:\Users\Admin\AppData\Local\Temp\server.exe
  "C:\Users\Admin\AppData\Local\Temp\server.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:2360
- - 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:4512

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\server.exe

Filesize
291KB

MD5
8e8f6ffd1c602b7c00ba2e87319fe83e

SHA1
03ebc5f035c06abb8b66c5d47fd41d43d6b6035b

SHA256
56239d28dda750a7b9f5eb0d7ec7a72cd4cfb4cb21e5c1e43a8893fa303b2a62

SHA512
d70c5220ef7071f0513e9e7436b42c093dbc298be2ee978a7795cfd6552693f9f006c26f00f6e217cfbae5904d15b840baa12409f2eaaf8f03ec8d71cdd11422

Download Submit
memory/2360-35-0x0000000074DF0000-0x00000000755A0000-memory.dmp

Filesize
7.7MB

Download
memory/2360-34-0x0000000074DF0000-0x00000000755A0000-memory.dmp

Filesize
7.7MB

Download
memory/2360-33-0x0000000074DF0000-0x00000000755A0000-memory.dmp

Filesize
7.7MB

Download
memory/2360-32-0x0000000074DF0000-0x00000000755A0000-memory.dmp

Filesize
7.7MB

Download
memory/2360-30-0x0000000074DF0000-0x00000000755A0000-memory.dmp

Filesize
7.7MB

Download
memory/2360-29-0x0000000074DF0000-0x00000000755A0000-memory.dmp

Filesize
7.7MB

Download
memory/2360-28-0x0000000074DF0000-0x00000000755A0000-memory.dmp

Filesize
7.7MB

Download
memory/2360-27-0x0000000074DF0000-0x00000000755A0000-memory.dmp

Filesize
7.7MB

Download
memory/4448-7-0x00000000080E0000-0x0000000008172000-memory.dmp

Filesize
584KB

Download
memory/4448-25-0x0000000074DFE000-0x0000000074DFF000-memory.dmp

Filesize
4KB

Download
memory/4448-11-0x0000000074DF0000-0x00000000755A0000-memory.dmp

Filesize
7.7MB

Download
memory/4448-12-0x0000000003110000-0x000000000311C000-memory.dmp

Filesize
48KB

Download
memory/4448-9-0x00000000082D0000-0x0000000008326000-memory.dmp

Filesize
344KB

Download
memory/4448-26-0x0000000074DF0000-0x00000000755A0000-memory.dmp

Filesize
7.7MB

Download
memory/4448-8-0x0000000008030000-0x000000000803A000-memory.dmp

Filesize
40KB

Download
memory/4448-10-0x0000000074DF0000-0x00000000755A0000-memory.dmp

Filesize
7.7MB

Download
memory/4448-6-0x0000000008690000-0x0000000008C34000-memory.dmp

Filesize
5.6MB

Download
memory/4448-0-0x0000000074DFE000-0x0000000074DFF000-memory.dmp

Filesize
4KB

Download
memory/4448-5-0x0000000008040000-0x00000000080DC000-memory.dmp

Filesize
624KB

Download
memory/4448-4-0x0000000005870000-0x00000000058A6000-memory.dmp

Filesize
216KB

Download
memory/4448-3-0x0000000074DF0000-0x00000000755A0000-memory.dmp

Filesize
7.7MB

Download
memory/4448-2-0x0000000005760000-0x0000000005772000-memory.dmp

Filesize
72KB

Download
memory/4448-1-0x0000000000E20000-0x0000000000E6E000-memory.dmp

Filesize
312KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads