MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 55bca504c5ff798d6c5d4431eff4dda8df6ebfca0db4d86b0f1bf770ff550a0f. 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: 4

Intelligence 4 IOCs YARA 4 File information Comments

SHA256 hash:	55bca504c5ff798d6c5d4431eff4dda8df6ebfca0db4d86b0f1bf770ff550a0f
SHA3-384 hash:	6387c5b4186697858e9b52f4da4d1c5a5784bdb4778d871226153b09d3c0215d90a5115072c2128e8f12d20f31db5c32
SHA1 hash:	6ac62c7d94087453a5bff29522b70be7bb585015
MD5 hash:	e9b90f994d4c72b27ce7077838f0aa3b
humanhash:	massachusetts-colorado-solar-eighteen
File name:	Ningbo_P.R.China_Quote2020_DiscountOrder444996.exe
Download:	download sample
Signature	njrat Create hunting rule
File size:	382'464 bytes
First seen:	2020-04-11 11:30:37 UTC
Last seen:	2020-04-11 12:44:56 UTC
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (48'650 x AgentTesla, 19'462 x Formbook, 12'203 x SnakeKeylogger)
ssdeep	6144:EX0cLr10B54SDGNtQUF4XVQZjSElNE0WyrjdG1PyIi/gzvtI7K5:EdLrqB5pXXVM+ElIyPd6qSq7K
Threatray	215 similar samples on MalwareBazaar
TLSH	F18408023749AD52E9A61A36DC8BC11157BCFEC0285BE70F7E4D739C28213B764BA1D9
Reporter	abuse_ch
Tags:	COVID-19 exe NjRAT RAT

abuse_ch

COVID-19 themed malspam distributing njRAT:

HELO: alhoutisons.com
Sending IP: 62.215.26.86
From: "DEGSON-Jerry" <degson222@alhoutisons.com>
Subject: RE: Re: Re:( EMAIL ref. 767/19)/COVID-19/Order 20% discount
Attachment: Ningbo_P.R.China_Quote2020_DiscountOrder444996.rar (contains "Ningbo_P.R.China_Quote2020_DiscountOrder444996.exe")

Intelligence

File Origin

# of uploads :

# of downloads :

127

Origin country :

n/a

Vendor Threat Intelligence

Detection(s):

SecuriteInfo.com.Variant.Ursu.453443.25526.27872.UNOFFICIAL

Gathering data

Threat name:

ByteCode-MSIL.Trojan.Kryptik

Status:

Malicious

First seen:

2020-04-11 13:00:37 UTC

File Type:

PE (.Net Exe)

Extracted files:

AV detection:

24 of 31 (77.42%)

Threat level:

2/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=kw6kkbgf754y23c5iqy675g5vdpw5p6kbw2nq2ypdp3xb72vbihq._file

Verdict:

malicious

Label(s):

agenttesla

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

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

Rule name:	Njrat Create hunting rule
Author:	JPCERT/CC Incident Response Group
Description:	detect njRAT in memory

Rule name:	win_njrat_g1 Create hunting rule
Author:	Daniel Plohmann <daniel.plohmann<at>fkie.fraunhofer.de>

Rule name:	win_njrat_w1 Create hunting rule
Author:	Brian Wallace @botnet_hunter
Description:	Identify njRat

File information

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

Malspam

njrat

rar 383fd4644bf15594d79bf2ca051f67e1bbbfa88efa8f611a3b847eb37422a60d

njrat

exe 55bca504c5ff798d6c5d4431eff4dda8df6ebfca0db4d86b0f1bf770ff550a0f

(this sample)

Dropped by

MD5 70883c2d07a91a15855baf378b2652b1

Dropped by

SHA256 383fd4644bf15594d79bf2ca051f67e1bbbfa88efa8f611a3b847eb37422a60d

Delivery method

Distributed via e-mail attachment

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings

ID	Title	Severity
CHECK_AUTHENTICODE	Missing Authenticode	high
CHECK_DLL_CHARACTERISTICS	Missing dll Security Characteristics (HIGH_ENTROPY_VA)	high

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