MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 5a4b392f1d7739a6eb89c2d927e26079351b6270cead2dfcb597b2d9deb26557. 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: 8

Intelligence 8 IOCs YARA 2 File information Comments

SHA256 hash:	5a4b392f1d7739a6eb89c2d927e26079351b6270cead2dfcb597b2d9deb26557
SHA3-384 hash:	019df0372ec167eb245b4498a589e8533d1c0426fde1b87b98033f290da1419bff7e15ac2809e7c040b11eaeecd798ff
SHA1 hash:	6950c8ee368a2d6fa6df51bc2b11af5b629ad964
MD5 hash:	2efeef14b39761ba89940d48b1b0f69a
humanhash:	west-orange-missouri-blossom
File name:	8Zk72zML.exe
Download:	download sample
Signature	njrat Create hunting rule
File size:	44'032 bytes
First seen:	2020-10-07 12:32:20 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep	384:nZyN8P9mvYyJy6vV1tBIYAM6w5GOLFl9D9O5UE5QzwBlpJNakkjh/TzF7pWncBgy:Z68PYghGrbxh0bvQO+Bv+L
Threatray	25 similar samples on MalwareBazaar
TLSH	2713E78DB684A175D5FF8BF1A491B2890B719017A806D30FD9F114ED8FB3AC09A11EE7
Reporter	pmelson
Tags:	exe NjRAT Njratgold

Intelligence

File Origin

# of uploads :

# of downloads :

190

Origin country :

n/a

Vendor Threat Intelligence

Detection:

Njrat

Link:

https://www.capesandbox.com/analysis/68946/

Result

Verdict:

Malware

Maliciousness:

Behaviour

Sending a UDP request

Creating a window

DNS request

Connection attempt to an infection source

Forced shutdown of a system process

Result

Threat name:

njRat

Detection:

malicious

Classification:

troj.evad

Score:

88 / 100

Link:

https://www.joesandbox.com/analysis/484152

Signature

.NET source code contains potential unpacker

Antivirus / Scanner detection for submitted sample

Detected njRat

Machine Learning detection for sample

Malicious sample detected (through community Yara rule)

Multi AV Scanner detection for submitted file

Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)

Behaviour

Behavior Graph:

Download SVG

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/5a4b392f1d7739a6eb89c2d927e26079351b6270cead2dfcb597b2d9deb26557/

Threat name:

ByteCode-MSIL.Backdoor.Bladabhindi

Status:

Malicious

First seen:

2020-10-07 12:34:06 UTC

AV detection:

27 of 29 (93.10%)

Threat level:

5/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=ljftsly5o442n24jylmspytape2rwytqz2ws37fvs6zntxvsmvlq._file

Result

Malware family:

n/a

Score:

1/10

Tags:

n/a

Link:

https://tria.ge/reports/201007-8f9dwcfnb6/

Behaviour

Suspicious behavior: GetForegroundWindowSpam

Suspicious use of AdjustPrivilegeToken

Unpacked files

SH256 hash:

5a4b392f1d7739a6eb89c2d927e26079351b6270cead2dfcb597b2d9deb26557

MD5 hash:

2efeef14b39761ba89940d48b1b0f69a

SHA1 hash:

6950c8ee368a2d6fa6df51bc2b11af5b629ad964

Link:

https://www.unpac.me/results/36d3ceb1-2225-4e9d-b3ee-984e6ebaf926/

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/5a4b392f1d7739a6eb89c2d927e26079351b6270cead2dfcb597b2d9deb26557

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:	CN_disclosed_20180208_c Create hunting rule
Author:	Florian Roth
Description:	Detects malware from disclosed CN malware set
Reference:	https://twitter.com/cyberintproject/status/961714165550342146