MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b6f5a289ab47b790c1bc57a5a3b35871fc968da66ebb3fdd7669de18c2ba3dd5. 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

NetWire

Vendor detections: 9

Intelligence 9 IOCs YARA 1 File information Comments

SHA256 hash:	b6f5a289ab47b790c1bc57a5a3b35871fc968da66ebb3fdd7669de18c2ba3dd5
SHA3-384 hash:	1c753fa3b85b2563fa0bd1a7fc267602133ae065d83cf7dab317938751ccd37ede93fdb16e0cc7b87346b33e59dccc60
SHA1 hash:	91bb096d730ca536a0f18534acdec271bdd0eefa
MD5 hash:	e792eb4a972110714df6761ef60284c6
humanhash:	oklahoma-queen-lamp-floor
File name:	15-08-2020 - SOFT COPY_PAYMENT SLIP.exe
Download:	download sample
Signature	NetWire Create hunting rule
File size:	239'616 bytes
First seen:	2020-08-15 17:28:14 UTC
Last seen:	2020-08-15 18:33:27 UTC
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'599 x Formbook, 12'241 x SnakeKeylogger)
ssdeep	6144:20oKIXs24n9ST9cjHl2yw5MQ15vUX1jV:20oV4kcjw5MgvU
Threatray	243 similar samples on MalwareBazaar
TLSH	FB34C056679F1623C7090A391CC2A37002306FAB7EEBBF8716CE750526B97AD187D583
Reporter	abuse_ch
Tags:	exe NetWire RAT

abuse_ch

Malspam distributing NetWire:

HELO: WIN-TPNQQ41KAUA.home
Sending IP: 66.7.148.55
From: support <riya.psharma12@gmail.com>
Subject: Regarding late payment
Attachment: 15-08-2020 - SOFT COPY_PAYMENT SLIP.rar (contains "15-08-2020 - SOFT COPY_PAYMENT SLIP.exe")

Intelligence

File Origin

# of uploads :

# of downloads :

333

Origin country :

n/a

Vendor Threat Intelligence

Detection:

Netwire

Link:

https://www.capesandbox.com/analysis/46342/

Detection(s):

SecuriteInfo.com.Trojan.PackedNET.276.28581.15573.UNOFFICIAL

Result

Verdict:

Malware

Maliciousness:

Behaviour

Sending a UDP request

Creating a file in the %temp% directory

Creating a process from a recently created file

DNS request

Creating a window

Running batch commands

Creating a process with a hidden window

Sending a custom TCP request

Launching a process

Creating a file

Moving of the original file

Unauthorized injection to a recently created process

Unauthorized injection to a recently created process by context flags manipulation

Enabling autorun

Result

Threat name:

NetWire

Detection:

malicious

Classification:

troj.spyw.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/432085

Signature

Allocates memory in foreign processes

Contains functionality to log keystrokes

Contains functionality to steal Chrome passwords or cookies

Creates an undocumented autostart registry key

Creates files in alternative data streams (ADS)

Executable has a suspicious name (potential lure to open the executable)

Initial sample is a PE file and has a suspicious name

Injects a PE file into a foreign processes

Machine Learning detection for dropped file

Machine Learning detection for sample

Moves itself to temp directory

Sigma detected: NetWire

Uses dynamic DNS services

Writes to foreign memory regions

Yara detected NetWire RAT

Behaviour

Behavior Graph:

Download SVG

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/b6f5a289ab47b790c1bc57a5a3b35871fc968da66ebb3fdd7669de18c2ba3dd5/

Threat name:

ByteCode-MSIL.Backdoor.NetWiredRc

Status:

Malicious

First seen:

2020-08-15 17:30:08 UTC

AV detection:

24 of 29 (82.76%)

Threat level:

5/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=w322fcnli63zbqn4k6s2hm2yoh6jndngn25t7xlwnhpbrqv2hxkq._file

Verdict:

malicious

Label(s):

netwirerc

Result

Malware family:

netwire

Score:

10/10

Tags:

rat botnet stealer family:netwire

Link:

https://tria.ge/reports/200815-ac3k2389xs/

Behaviour

Delays execution with timeout.exe

NTFS ADS

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: RenamesItself

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Suspicious use of SetThreadContext

Loads dropped DLL

Executes dropped EXE

NetWire RAT payload

Netwire

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

Threat name:

Malicious File

Score:

1.00

Link:

https://yomi.yoroi.company/submissions/b6f5a289ab47b790c1bc57a5a3b35871fc968da66ebb3fdd7669de18c2ba3dd5

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