MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 bdf71dc56dfe42ac8a0e429c5ffea9f3f1940acfd9353f11f2587f326a09c726. 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: 5

Intelligence 5 IOCs YARA 6 File information Comments

SHA256 hash:	bdf71dc56dfe42ac8a0e429c5ffea9f3f1940acfd9353f11f2587f326a09c726
SHA3-384 hash:	9042ecbc9adaae62eb5fa09586bfdf0a2c2bf4e8e201b99e18e1bb58879b859617bd1a61e01ca96c57f396bb7f0609a5
SHA1 hash:	d6359cfc0bd7fe7140b8c8a24c5e7a99a222f6ef
MD5 hash:	075affb0bb82a07ea10770bae4072cf7
humanhash:	violet-october-illinois-ink
File name:	systen.exe
Download:	download sample
Signature	njrat Create hunting rule
File size:	65'536 bytes
First seen:	2020-05-13 09:47:37 UTC
Last seen:	2020-05-13 16:23:39 UTC
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (48'742 x AgentTesla, 19'606 x Formbook, 12'242 x SnakeKeylogger)
ssdeep	1536:jzyM2HQbPxoecH1yy3dc3wOUdwQNCQoklJQH:PyQ7cH1yy3dc3wBdw/dPH
Threatray	411 similar samples on MalwareBazaar
TLSH	3653E6AC9BCCB7F1D86D2BFA14D5036282B6F1B79F57EB066C8D6D1A8411B80365C903
Reporter	abuse_ch
Tags:	exe NjRAT RAT

abuse_ch

Malspam distributing njrat:

HELO: NAM11-DM6-obe.outbound.protection.outlook.com
Sending IP: 40.92.19.45
From: Central Financiero <cen-financiero@outlook.com>
Subject: cuenta de cobro
Attachment: cuenta de cobro.r22 (contains "cuenta de cobro.docm")

NjRAT payload URL:
http://37.59.90.90/dard/systen.exe

NjRAT C2:
kamikaze1089.duckdns.org:1089 (186.146.240.20)
lachuli10.duckdns.org:1021 (186.146.240.20
morty1998.duckdns.org:1021 (186.146.240.20)

Intelligence

File Origin

# of uploads :

# of downloads :

106

Origin country :

n/a

Vendor Threat Intelligence

Detection(s):

SecuriteInfo.com.Generic.mg.075affb0bb82a07e.18493.UNOFFICIAL

Gathering data

Threat name:

ByteCode-MSIL.Trojan.Wacatac

Status:

Malicious

First seen:

2020-05-13 08:12:37 UTC

File Type:

PE (.Net Exe)

Extracted files:

AV detection:

25 of 31 (80.65%)

Threat level:

2/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=xx3r3rln7zbkzcqoikof77vj6pyzicwp3e2t6epslb7te2qjy4ta._file

Result

Malware family:

njrat

Score:

10/10

Tags:

family:njrat evasion persistence trojan

Link:

https://tria.ge/reports/201109-gan92w55ga/

Behaviour

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Modifies service

Suspicious use of SetThreadContext

Modifies Windows Firewall

njRAT/Bladabindi

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:	ach_RemcosRAT Create hunting rule
Author:	abuse.ch

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

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_w1 Create hunting rule
Author:	Brian Wallace @botnet_hunter
Description:	Identify njRat

Rule name:	win_remcos_auto Create hunting rule
Author:	Felix Bilstein - yara-signator at cocacoding dot com
Description:	autogenerated rule brought to you by yara-signator