MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 9cf93c4c0c4e0b609c5f21e3b49099009e5010cb2391dea6009d73e1293e1c70. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.

Database Entry

njrat

Vendor detections: 7

Intelligence 7 IOCs 1 YARA 2 File information Comments 1

SHA256 hash:	9cf93c4c0c4e0b609c5f21e3b49099009e5010cb2391dea6009d73e1293e1c70
SHA3-384 hash:	36acfb3e3af8f47ab421a33faa2e885874bd67d765a7e0acc9597182783276a3348d3e13fe98ccd507f16c002a4fa3f9
SHA1 hash:	8d7afc8519439840d5959f95c6a234cf572d4fed
MD5 hash:	e4b9076e0909775d85a39706c0337d0d
humanhash:	eighteen-romeo-three-lactose
File name:	e4b9076e0909775d85a39706c0337d0d.exe
Download:	download sample
Signature	njrat Create hunting rule
File size:	1'262'592 bytes
First seen:	2021-05-04 08:31:04 UTC
Last seen:	2021-05-04 10:07:34 UTC
File type:	exe
MIME type:	application/x-dosexec
ssdeep	12288:JxjrJSpmaxIephPrYDKpZZQyG5b/MF/aMDb8BtRjA7XcYNclB:rUNZeDKpZZQyG5EF/aMHCR07zc
Threatray	68 similar samples on MalwareBazaar
TLSH	2D455B086FEC4719F53F73FA84E5607023B8AC416757E30A1AF875AA1872363DD8919E
Reporter	abuse_ch
Tags:	exe NjRAT RAT

abuse_ch

njrat C2:
141.255.156.15:5355

Indicators Of Compromise (IOCs)

Below is a list of indicators of compromise (IOCs) associated with this malware samples.

IOC	ThreatFox Reference
141.255.156.15:5355	https://threatfox.abuse.ch/ioc/28924/

Intelligence

File Origin

# of uploads :

# of downloads :

136

Origin country :

n/a

Vendor Threat Intelligence

Malware family:

n/a

ID:

File name:

aa.exe

Verdict:

No threats detected

Analysis date:

2021-05-04 15:48:22 UTC

Tags:

n/a

Link:

https://app.any.run/tasks/c456576a-27de-4fd4-9c01-0015813e364c

Note:

ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample

Detection:

Njrat

Link:

https://www.capesandbox.com/analysis/149770/

Detection(s):

SecuriteInfo.com.Mal.Generic-S.20164.16858.UNOFFICIAL

Result

Verdict:

Malware

Maliciousness:

Behaviour

Creating a window

Sending a UDP request

Unauthorized injection to a recently created process

Creating a file

Enabling autorun by creating a file

Result

Verdict:

UNKNOWN

Details

Windows PE Executable

Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.

Result

Threat name:

Njrat

Detection:

malicious

Classification:

troj.adwa.evad

Score:

88 / 100

Link:

https://www.joesandbox.com/analysis/709555

Signature

.NET source code contains potential unpacker

.NET source code references suspicious native API functions

Drops PE files to the startup folder

Machine Learning detection for dropped file

Machine Learning detection for sample

Multi AV Scanner detection for dropped file

Multi AV Scanner detection for submitted file

Uses dynamic DNS services

Yara detected Njrat

Behaviour

Behavior Graph:

Download SVG

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/9cf93c4c0c4e0b609c5f21e3b49099009e5010cb2391dea6009d73e1293e1c70/

Threat name:

ByteCode-MSIL.Backdoor.Bladabhindi

Status:

Malicious

First seen:

2021-04-27 15:40:25 UTC

AV detection:

17 of 29 (58.62%)

Threat level:

5/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=tt4tytamjyfwbhc7ehr3jeezacpfaegleoi55jqatvz6ckj6drya._file

Result

Malware family:

n/a

Score:

7/10

Tags:

n/a

Link:

https://tria.ge/reports/210504-9sdvqd17lx/

Behaviour

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Enumerates physical storage devices

Drops startup file

Unpacked files

SH256 hash:

9cf93c4c0c4e0b609c5f21e3b49099009e5010cb2391dea6009d73e1293e1c70

MD5 hash:

e4b9076e0909775d85a39706c0337d0d

SHA1 hash:

8d7afc8519439840d5959f95c6a234cf572d4fed

Link:

https://www.unpac.me/results/edf22c00-5baf-4a8b-8da6-0ac0034401af/

Please note that we are no longer able to provide a coverage score for Virus Total.

Threat name:

NJRat

Score:

1.00

Link:

https://yomi.yoroi.company/submissions/9cf93c4c0c4e0b609c5f21e3b49099009e5010cb2391dea6009d73e1293e1c70

YARA Signatures

MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.

Rule name:	BlackWorm Create hunting rule
Author:	Brian Wallace @botnet_hunter
Description:	Identify BlackWorm

Rule name:	CAP_HookExKeylogger Create hunting rule
Author:	Brian C. Bell -- @biebsmalwareguy
Reference:	https://github.com/DFIRnotes/rules/blob/master/CAP_HookExKeylogger.yar

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Cape

https://www.capesandbox.com/analysis/149770/

Comments

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a̵c̵c̸i̵d̷e̵n̷t̴a̷l̴r̵e̷b̸e̴l̸ commented on 2021-05-04 09:00:44 UTC

============================================================
MBC behaviors list (github.com/accidentalrebel/mbcscan):
============================================================
0) [C0027.001] Cryptography Micro-objective::AES::Encrypt Data
2) [B0023] Execution::Install Additional Program