njrat | 4c0dd651b91d4e3a13cc6e29398fee4cff9f2624727830273e09dea2f9b52e5e

General

Target

4c0dd651b91d4e3a13cc6e29398fee4cff9f2624727830273e09dea2f9b52e5e.exe
Size

980KB
MD5

5a1d67104626806bdbc74cd6fbe0af6d
SHA1

69869281403a2a11c7c99f338736b5ef247fffd8
SHA256

4c0dd651b91d4e3a13cc6e29398fee4cff9f2624727830273e09dea2f9b52e5e
SHA512

bdcd851a6ae6b37bf372a18756d8c497a0cd86e1bba7076ade6342ea886943d0a5ae621fd0eb82b400f7b14d12ef1a4a163b315285f837c3b655be1c36efed97
SSDEEP

12288:x2LaKaEt0ymu5M2kqChPAxzlO50IoPWEu/8+l89R6WvEVr4aQxU9:xdnuahPS5nxTRdvEVr474

Score

10^/10

njrat hacked discovery evasion persistence privilege_escalation trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

HacKed

C2

127.0.0.1:5552

Mutex

279f6960ed84a752570aca7fb2dc1552

Attributes

reg_key
279f6960ed84a752570aca7fb2dc1552
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

pid	Process
5112	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-1-5-21-2045521122-590294423-3465680274-1000\Control Panel\International\Geo\Nation	4c0dd651b91d4e3a13cc6e29398fee4cff9f2624727830273e09dea2f9b52e5e.exe

Executes dropped EXE 2 IoCs

pid	Process
3652	server.exe
1936	server.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-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\279f6960ed84a752570aca7fb2dc1552 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .."	server.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\279f6960ed84a752570aca7fb2dc1552 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .."	server.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 3088 set thread context of 3616	3088	4c0dd651b91d4e3a13cc6e29398fee4cff9f2624727830273e09dea2f9b52e5e.exe	83
PID 3652 set thread context of 1936	3652	server.exe	91

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 5 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	4c0dd651b91d4e3a13cc6e29398fee4cff9f2624727830273e09dea2f9b52e5e.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	4c0dd651b91d4e3a13cc6e29398fee4cff9f2624727830273e09dea2f9b52e5e.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	server.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	server.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

Suspicious use of AdjustPrivilegeToken 35 IoCs

description	pid	Process
Token: SeDebugPrivilege	3088	4c0dd651b91d4e3a13cc6e29398fee4cff9f2624727830273e09dea2f9b52e5e.exe
Token: SeDebugPrivilege	3652	server.exe
Token: SeDebugPrivilege	1936	server.exe
Token: 33	1936	server.exe
Token: SeIncBasePriorityPrivilege	1936	server.exe
Token: 33	1936	server.exe
Token: SeIncBasePriorityPrivilege	1936	server.exe
Token: 33	1936	server.exe
Token: SeIncBasePriorityPrivilege	1936	server.exe
Token: 33	1936	server.exe
Token: SeIncBasePriorityPrivilege	1936	server.exe
Token: 33	1936	server.exe
Token: SeIncBasePriorityPrivilege	1936	server.exe
Token: 33	1936	server.exe
Token: SeIncBasePriorityPrivilege	1936	server.exe
Token: 33	1936	server.exe
Token: SeIncBasePriorityPrivilege	1936	server.exe
Token: 33	1936	server.exe
Token: SeIncBasePriorityPrivilege	1936	server.exe
Token: 33	1936	server.exe
Token: SeIncBasePriorityPrivilege	1936	server.exe
Token: 33	1936	server.exe
Token: SeIncBasePriorityPrivilege	1936	server.exe
Token: 33	1936	server.exe
Token: SeIncBasePriorityPrivilege	1936	server.exe
Token: 33	1936	server.exe
Token: SeIncBasePriorityPrivilege	1936	server.exe
Token: 33	1936	server.exe
Token: SeIncBasePriorityPrivilege	1936	server.exe
Token: 33	1936	server.exe
Token: SeIncBasePriorityPrivilege	1936	server.exe
Token: 33	1936	server.exe
Token: SeIncBasePriorityPrivilege	1936	server.exe
Token: 33	1936	server.exe
Token: SeIncBasePriorityPrivilege	1936	server.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 3088 wrote to memory of 3616	3088	4c0dd651b91d4e3a13cc6e29398fee4cff9f2624727830273e09dea2f9b52e5e.exe	83
PID 3088 wrote to memory of 3616	3088	4c0dd651b91d4e3a13cc6e29398fee4cff9f2624727830273e09dea2f9b52e5e.exe	83
PID 3088 wrote to memory of 3616	3088	4c0dd651b91d4e3a13cc6e29398fee4cff9f2624727830273e09dea2f9b52e5e.exe	83
PID 3088 wrote to memory of 3616	3088	4c0dd651b91d4e3a13cc6e29398fee4cff9f2624727830273e09dea2f9b52e5e.exe	83
PID 3088 wrote to memory of 3616	3088	4c0dd651b91d4e3a13cc6e29398fee4cff9f2624727830273e09dea2f9b52e5e.exe	83
PID 3616 wrote to memory of 3652	3616	4c0dd651b91d4e3a13cc6e29398fee4cff9f2624727830273e09dea2f9b52e5e.exe	87
PID 3616 wrote to memory of 3652	3616	4c0dd651b91d4e3a13cc6e29398fee4cff9f2624727830273e09dea2f9b52e5e.exe	87
PID 3616 wrote to memory of 3652	3616	4c0dd651b91d4e3a13cc6e29398fee4cff9f2624727830273e09dea2f9b52e5e.exe	87
PID 3652 wrote to memory of 1936	3652	server.exe	91
PID 3652 wrote to memory of 1936	3652	server.exe	91
PID 3652 wrote to memory of 1936	3652	server.exe	91
PID 3652 wrote to memory of 1936	3652	server.exe	91
PID 3652 wrote to memory of 1936	3652	server.exe	91
PID 1936 wrote to memory of 5112	1936	server.exe	100
PID 1936 wrote to memory of 5112	1936	server.exe	100
PID 1936 wrote to memory of 5112	1936	server.exe	100

C:\Users\Admin\AppData\Local\Temp\4c0dd651b91d4e3a13cc6e29398fee4cff9f2624727830273e09dea2f9b52e5e.exe
"C:\Users\Admin\AppData\Local\Temp\4c0dd651b91d4e3a13cc6e29398fee4cff9f2624727830273e09dea2f9b52e5e.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3088
- C:\Users\Admin\AppData\Local\Temp\4c0dd651b91d4e3a13cc6e29398fee4cff9f2624727830273e09dea2f9b52e5e.exe
  C:\Users\Admin\AppData\Local\Temp\4c0dd651b91d4e3a13cc6e29398fee4cff9f2624727830273e09dea2f9b52e5e.exe
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3616
- - C:\Users\Admin\AppData\Local\Temp\server.exe
    "C:\Users\Admin\AppData\Local\Temp\server.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:3652
  - - C:\Users\Admin\AppData\Local\Temp\server.exe
      C:\Users\Admin\AppData\Local\Temp\server.exe
      4⤵
      Executes dropped EXE
      Adds Run key to start application
      System Location Discovery: System Language Discovery
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of WriteProcessMemory
      PID:1936
    - - C:\Windows\SysWOW64\netsh.exe
        
        netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\server.exe" "server.exe" ENABLE
        5⤵
        Modifies Windows Firewall
        Event Triggered Execution: Netsh Helper DLL
        System Location Discovery: System Language Discovery
        
        PID:5112

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\Microsoft\CLR_v4.0_32\UsageLogs\4c0dd651b91d4e3a13cc6e29398fee4cff9f2624727830273e09dea2f9b52e5e.exe.log

Filesize
1KB

MD5
9a2d0ce437d2445330f2646472703087

SHA1
33c83e484a15f35c2caa3af62d5da6b7713a20ae

SHA256
30ea2f716e85f8d14a201e3fb0897d745a01b113342dfb7a9b7ac133c4ef150c

SHA512
a61d18d90bfad9ea8afdfa37537cfea3d5a3d0c161e323fa65840c283bdc87c3de85daaff5519beea2f2719eec1c68398eea8679b55ff733a61052f073162d5d

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

Filesize
980KB

MD5
5a1d67104626806bdbc74cd6fbe0af6d

SHA1
69869281403a2a11c7c99f338736b5ef247fffd8

SHA256
4c0dd651b91d4e3a13cc6e29398fee4cff9f2624727830273e09dea2f9b52e5e

SHA512
bdcd851a6ae6b37bf372a18756d8c497a0cd86e1bba7076ade6342ea886943d0a5ae621fd0eb82b400f7b14d12ef1a4a163b315285f837c3b655be1c36efed97

Download Submit
memory/3088-26-0x0000000075350000-0x0000000075B00000-memory.dmp

Filesize
7.7MB

Download
memory/3088-22-0x0000000075350000-0x0000000075B00000-memory.dmp

Filesize
7.7MB

Download
memory/3088-4-0x00000000052B0000-0x0000000005342000-memory.dmp

Filesize
584KB

Download
memory/3088-5-0x0000000075350000-0x0000000075B00000-memory.dmp

Filesize
7.7MB

Download
memory/3088-6-0x0000000005440000-0x000000000544A000-memory.dmp

Filesize
40KB

Download
memory/3088-7-0x0000000005690000-0x000000000569A000-memory.dmp

Filesize
40KB

Download
memory/3088-1-0x0000000000700000-0x00000000007FC000-memory.dmp

Filesize
1008KB

Download
memory/3088-20-0x0000000075350000-0x0000000075B00000-memory.dmp

Filesize
7.7MB

Download
memory/3088-2-0x0000000005210000-0x00000000052AC000-memory.dmp

Filesize
624KB

Download
memory/3088-3-0x0000000005860000-0x0000000005E04000-memory.dmp

Filesize
5.6MB

Download
memory/3088-23-0x0000000075350000-0x0000000075B00000-memory.dmp

Filesize
7.7MB

Download
memory/3088-24-0x0000000075350000-0x0000000075B00000-memory.dmp

Filesize
7.7MB

Download
memory/3088-28-0x0000000075350000-0x0000000075B00000-memory.dmp

Filesize
7.7MB

Download
memory/3088-0-0x000000007535E000-0x000000007535F000-memory.dmp

Filesize
4KB

Download
memory/3616-25-0x0000000075350000-0x0000000075B00000-memory.dmp

Filesize
7.7MB

Download
memory/3616-21-0x0000000002E10000-0x0000000002E1C000-memory.dmp

Filesize
48KB

Download
memory/3616-18-0x0000000000400000-0x0000000000408000-memory.dmp

Filesize
32KB

Download
memory/3616-41-0x0000000075350000-0x0000000075B00000-memory.dmp

Filesize
7.7MB

Download
memory/3652-42-0x0000000075350000-0x0000000075B00000-memory.dmp

Filesize
7.7MB

Download
memory/3652-57-0x0000000075350000-0x0000000075B00000-memory.dmp

Filesize
7.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads