njrat | c52329b3f7d86f8845f0a8ac10ddf8f9197f65cee7db1afaac71fd66e29249fb

General

Target

c52329b3f7d86f8845f0a8ac10ddf8f9197f65cee7db1afaac71fd66e29249fbN.exe
Size

1017KB
MD5

b9d1281cc35d5a9e43e5a973f252add0
SHA1

55cccb436a78a85325d8a3ca8df529bdd855a648
SHA256

c52329b3f7d86f8845f0a8ac10ddf8f9197f65cee7db1afaac71fd66e29249fb
SHA512

28ec43eee9520807d496e1cf4e90348cedc480ba7e345c9b69cb2586fa1c3937c9f1b951b3deecd51e7fb04f4c2c265abb01abc2ff6e764c9c468143925cd015
SSDEEP

12288:zZVVPwiE/xzp4yXyjHy15n4/7iFf/LnJFhP4lS8kGUb55aY6KoAjV3La1Ixd2hc6:z1wrp4/gAX+63YxWcE

Score

10^/10

njrat discovery evasion persistence privilege_escalation trojan

Malware Config

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
1560	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-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation	c52329b3f7d86f8845f0a8ac10ddf8f9197f65cee7db1afaac71fd66e29249fbN.exe

Executes dropped EXE 1 IoCs

pid	Process
4388	svchost.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\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\866940942622730158d6b7ceeeac0740 = "\"C:\\Windows\\svchost.exe\" .."	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\866940942622730158d6b7ceeeac0740 = "\"C:\\Windows\\svchost.exe\" .."	svchost.exe

Drops file in Windows directory 3 IoCs

description	ioc	Process
File created	C:\Windows\Microsoft.NET\Framework\v2.0.50727\config\enterprisesec.config.cch.new	c52329b3f7d86f8845f0a8ac10ddf8f9197f65cee7db1afaac71fd66e29249fbN.exe
File created	C:\Windows\svchost.exe	c52329b3f7d86f8845f0a8ac10ddf8f9197f65cee7db1afaac71fd66e29249fbN.exe
File created	C:\Windows\Microsoft.NET\Framework\v2.0.50727\config\security.config.cch.new	c52329b3f7d86f8845f0a8ac10ddf8f9197f65cee7db1afaac71fd66e29249fbN.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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	c52329b3f7d86f8845f0a8ac10ddf8f9197f65cee7db1afaac71fd66e29249fbN.exe

Suspicious use of AdjustPrivilegeToken 27 IoCs

description	pid	Process
Token: SeDebugPrivilege	4388	svchost.exe
Token: 33	4388	svchost.exe
Token: SeIncBasePriorityPrivilege	4388	svchost.exe
Token: 33	4388	svchost.exe
Token: SeIncBasePriorityPrivilege	4388	svchost.exe
Token: 33	4388	svchost.exe
Token: SeIncBasePriorityPrivilege	4388	svchost.exe
Token: 33	4388	svchost.exe
Token: SeIncBasePriorityPrivilege	4388	svchost.exe
Token: 33	4388	svchost.exe
Token: SeIncBasePriorityPrivilege	4388	svchost.exe
Token: 33	4388	svchost.exe
Token: SeIncBasePriorityPrivilege	4388	svchost.exe
Token: 33	4388	svchost.exe
Token: SeIncBasePriorityPrivilege	4388	svchost.exe
Token: 33	4388	svchost.exe
Token: SeIncBasePriorityPrivilege	4388	svchost.exe
Token: 33	4388	svchost.exe
Token: SeIncBasePriorityPrivilege	4388	svchost.exe
Token: 33	4388	svchost.exe
Token: SeIncBasePriorityPrivilege	4388	svchost.exe
Token: 33	4388	svchost.exe
Token: SeIncBasePriorityPrivilege	4388	svchost.exe
Token: 33	4388	svchost.exe
Token: SeIncBasePriorityPrivilege	4388	svchost.exe
Token: 33	4388	svchost.exe
Token: SeIncBasePriorityPrivilege	4388	svchost.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3928 wrote to memory of 4388	3928	c52329b3f7d86f8845f0a8ac10ddf8f9197f65cee7db1afaac71fd66e29249fbN.exe	86
PID 3928 wrote to memory of 4388	3928	c52329b3f7d86f8845f0a8ac10ddf8f9197f65cee7db1afaac71fd66e29249fbN.exe	86
PID 3928 wrote to memory of 4388	3928	c52329b3f7d86f8845f0a8ac10ddf8f9197f65cee7db1afaac71fd66e29249fbN.exe	86
PID 4388 wrote to memory of 1560	4388	svchost.exe	87
PID 4388 wrote to memory of 1560	4388	svchost.exe	87
PID 4388 wrote to memory of 1560	4388	svchost.exe	87

C:\Users\Admin\AppData\Local\Temp\c52329b3f7d86f8845f0a8ac10ddf8f9197f65cee7db1afaac71fd66e29249fbN.exe
"C:\Users\Admin\AppData\Local\Temp\c52329b3f7d86f8845f0a8ac10ddf8f9197f65cee7db1afaac71fd66e29249fbN.exe"
1⤵
- Checks computer location settings
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3928
- C:\Windows\svchost.exe
  "C:\Windows\svchost.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:4388
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Windows\svchost.exe" "svchost.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    - System Location Discovery: System Language Discovery
    PID:1560

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\Microsoft.NET\Framework\v2.0.50727\config\security.config.cch

Filesize
516B

MD5
07d0a6b159675b82f830d1d4934c744a

SHA1
6b8d89ef20b175e1ee1e692f8ead2aeff6eee502

SHA256
044cfb014df5fe127515fabb10a1025f3745f258ea635f31442363998a84a5e7

SHA512
8d71d9c804ce42ef6090f020467a277cf5307601507382030a2a10e183e3f24bcef5335c86dd6bbb238c8abeb85db9017a277336ba9f88c6f54ecbe98fe72ad8

Download Submit
C:\Windows\svchost.exe

Filesize
1017KB

MD5
b9d1281cc35d5a9e43e5a973f252add0

SHA1
55cccb436a78a85325d8a3ca8df529bdd855a648

SHA256
c52329b3f7d86f8845f0a8ac10ddf8f9197f65cee7db1afaac71fd66e29249fb

SHA512
28ec43eee9520807d496e1cf4e90348cedc480ba7e345c9b69cb2586fa1c3937c9f1b951b3deecd51e7fb04f4c2c265abb01abc2ff6e764c9c468143925cd015

Download Submit
memory/3928-0-0x0000000075372000-0x0000000075373000-memory.dmp

Filesize
4KB

Download
memory/3928-1-0x0000000075370000-0x0000000075921000-memory.dmp

Filesize
5.7MB

Download
memory/3928-2-0x0000000075370000-0x0000000075921000-memory.dmp

Filesize
5.7MB

Download
memory/3928-19-0x0000000075370000-0x0000000075921000-memory.dmp

Filesize
5.7MB

Download
memory/3928-18-0x0000000075372000-0x0000000075373000-memory.dmp

Filesize
4KB

Download
memory/3928-24-0x0000000075370000-0x0000000075921000-memory.dmp

Filesize
5.7MB

Download
memory/4388-21-0x0000000075370000-0x0000000075921000-memory.dmp

Filesize
5.7MB

Download
memory/4388-20-0x0000000075370000-0x0000000075921000-memory.dmp

Filesize
5.7MB

Download
memory/4388-25-0x0000000075370000-0x0000000075921000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads