njrat | 6a63f64e8b12ec995174b4edf2227b277d23f03268e2577a9a265e619d57918c

Analysis

max time kernel
12s
max time network
19s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
07/02/2025, 21:32

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General

Target

6a63f64e8b12ec995174b4edf2227b277d23f03268e2577a9a265e619d57918cN.exe
Size

1.3MB
MD5

5ebe0d1a87ffbb0c5da46fd27afa55c0
SHA1

efb6dd7c8971200b5babfef27e9fd2694309e14b
SHA256

6a63f64e8b12ec995174b4edf2227b277d23f03268e2577a9a265e619d57918c
SHA512

4840de14c11680af2c77e35329cb4807ac55f39f2affd60f8590ee938aa8eaf5a5cc4c635fe58cbd80e3df37e1da5c6f606d4ea4f0a9fd63ef639a3e2e91fff7
SSDEEP

24576:lJQpfDVc5/wP8gvnbxPaCcCu001guRuUk7cmrojzK02+58xBRysw0i9gnK:lyDVkgvbxPkCu001gucUqcm8jm02GImt

Score

10^/10

njrat defense_evasion discovery trojan

Malware Config

Signatures

Njrat family
njrat
njRAT/Bladabindi
Widely used RAT written in .NET.
trojan njrat

Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs

defense_evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	6a63f64e8b12ec995174b4edf2227b277d23f03268e2577a9a265e619d57918cN.exe

Checks BIOS information in registry 2 TTPs 2 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	6a63f64e8b12ec995174b4edf2227b277d23f03268e2577a9a265e619d57918cN.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	6a63f64e8b12ec995174b4edf2227b277d23f03268e2577a9a265e619d57918cN.exe

Identifies Wine through registry keys 2 TTPs 1 IoCs

Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

defense_evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Wine	6a63f64e8b12ec995174b4edf2227b277d23f03268e2577a9a265e619d57918cN.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
2580	6a63f64e8b12ec995174b4edf2227b277d23f03268e2577a9a265e619d57918cN.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\Windows\svchost.exe	6a63f64e8b12ec995174b4edf2227b277d23f03268e2577a9a265e619d57918cN.exe

System Location Discovery: System Language Discovery 1 TTPs 1 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	6a63f64e8b12ec995174b4edf2227b277d23f03268e2577a9a265e619d57918cN.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2580	6a63f64e8b12ec995174b4edf2227b277d23f03268e2577a9a265e619d57918cN.exe

C:\Users\Admin\AppData\Local\Temp\6a63f64e8b12ec995174b4edf2227b277d23f03268e2577a9a265e619d57918cN.exe
"C:\Users\Admin\AppData\Local\Temp\6a63f64e8b12ec995174b4edf2227b277d23f03268e2577a9a265e619d57918cN.exe"
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Identifies Wine through registry keys
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
PID:2580

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

T1497

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Virtualization/Sandbox Evasion

T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/2580-0-0x0000000000F70000-0x0000000001300000-memory.dmp

Filesize
3.6MB

Download
memory/2580-2-0x0000000000F70000-0x0000000001300000-memory.dmp

Filesize
3.6MB

Download