MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 43b7ad6fd23489f738b0071bf1cc97be6582cc525cb5837b231484c78fb02e31. 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: 8

Intelligence 8 IOCs YARA 6 File information Comments

SHA256 hash:	43b7ad6fd23489f738b0071bf1cc97be6582cc525cb5837b231484c78fb02e31
SHA3-384 hash:	9541a10673433ce2a223c520599ffaa55386f72712771785498cf922692565d706cc39edab1f5a37f25b76eef052e431
SHA1 hash:	49da1251a6a28be2ecca2c23806e3824a2192667
MD5 hash:	c326dbd31bc1f41608bd53fca0ea6d81
humanhash:	pennsylvania-magnesium-item-glucose
File name:	Proof of Payment.exe
Download:	download sample
Signature	NetWire Create hunting rule
File size:	415'232 bytes
First seen:	2020-11-09 19:31:32 UTC
Last seen:	2020-11-15 23:02:34 UTC
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep	6144:yjLijgVwS9ZRdBHMlU8LFRlVaDYqOyPMkHiZHCl92QQZJg5KYOYit:OijgVwSLt8LFRlVac1kMkCXZJCzO
Threatray	42 similar samples on MalwareBazaar
TLSH	DB94CF777112BD8EF65B4C73D8942FB41D60AC378B0AD65AB84B31A8517D28ACE009FD
Reporter	abuse_ch
Tags:	exe NetWire RAT

abuse_ch

Malspam distributing NetWire:

HELO: mail.onlineinnovations.com
Sending IP: 197.221.56.44
From: khayelitsha Spec Savers <khayelitsha@specstores.co.za>
Reply-To: khayelitsha@specstores.co.za
Subject: Fwd: Proof of Payment
Attachment: Proof of Payment.iso (contains "Proof of Payment.exe")

Intelligence

File Origin

# of uploads :

# of downloads :

109

Origin country :

n/a

Vendor Threat Intelligence

Detection(s):

SecuriteInfo.com.BehavesLike.Win32.Generic.gc.6189.UNOFFICIAL

Result

Verdict:

Malware

Maliciousness:

Behaviour

Creating a window

Creating a file in the %AppData% directory

Creating a file in the %temp% directory

Launching a process

Creating a process with a hidden window

Deleting a recently created file

Unauthorized injection to a recently created process

Creating a file

Connection attempt to an infection source

Enabling autorun by creating a file

Result

Threat name:

Netwire

Detection:

malicious

Classification:

troj.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/527080

Signature

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

Initial sample is a PE file and has a suspicious name

Machine Learning detection for dropped file

Machine Learning detection for sample

Malicious sample detected (through community Yara rule)

Multi AV Scanner detection for dropped file

Multi AV Scanner detection for submitted file

Sigma detected: Scheduled temp file as task from temp location

Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)

Uses schtasks.exe or at.exe to add and modify task schedules

Yara detected AntiVM_3

Yara detected Netwire RAT

Behaviour

Behavior Graph:

Download SVG

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/43b7ad6fd23489f738b0071bf1cc97be6582cc525cb5837b231484c78fb02e31/

Threat name:

ByteCode-MSIL.Trojan.Sudloader

Status:

Malicious

First seen:

2020-11-09 12:32:17 UTC

AV detection:

24 of 29 (82.76%)

Threat level:

5/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=io32236sgse7oofqa4n7dtexxzsyftcsls2yg6zdcscmpd5qfyyq._file

Verdict:

malicious

Label(s):

netwirerc

Result

Malware family:

netwire

Score:

10/10

Tags:

family:netwire botnet persistence rat stealer

Link:

https://tria.ge/reports/201109-mw39kqa1pa/

Behaviour

Creates scheduled task(s)

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Modifies service

Suspicious use of SetThreadContext

NetWire RAT payload

Netwire

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

Threat name:

Nanocore

Score:

1.00

Link:

https://yomi.yoroi.company/submissions/43b7ad6fd23489f738b0071bf1cc97be6582cc525cb5837b231484c78fb02e31

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:	IPPort_combo_mem Create hunting rule
Author:	James_inthe_box
Description:	IP and port combo

Rule name:	Malicious_BAT_Strings Create hunting rule
Author:	Florian Roth
Description:	Detects a string also used in Netwire RAT auxilliary
Reference:	https://pastebin.com/8qaiyPxs

Rule name:	MAL_unspecified_Jan18_1 Create hunting rule
Author:	Florian Roth
Description:	Detects unspecified malware sample
Reference:	Internal Research

Rule name:	netwire Create hunting rule
Author:	JPCERT/CC Incident Response Group
Description:	detect netwire in memory
Reference:	internal research

Rule name:	Suspicious_BAT_Strings Create hunting rule
Author:	Florian Roth
Description:	Detects a string also used in Netwire RAT auxilliary
Reference:	https://pastebin.com/8qaiyPxs

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