MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3640e0bfb26ad5e7cf64e2b1b927031f49b84c1dab0e4460b18de6e57904ff7e. 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

NanoCore

Vendor detections: 8

Intelligence 8 IOCs YARA 5 File information Comments

SHA256 hash:	3640e0bfb26ad5e7cf64e2b1b927031f49b84c1dab0e4460b18de6e57904ff7e
SHA3-384 hash:	f2269359683be018d38c7fce036c9a3dc821307a019fc11b514b5d983bb46c7016b4843befa8fb5e779dd1d25d47d9bd
SHA1 hash:	a50011e6a29aae7a7c672f46ba928bef36a4841d
MD5 hash:	fe88f25cef3eacd8445afbd97514dcbf
humanhash:	seventeen-lion-carolina-seventeen
File name:	systempact.exe
Download:	download sample
Signature	NanoCore Create hunting rule
File size:	922'624 bytes
First seen:	2020-08-18 11:56:42 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'462 x Formbook, 12'204 x SnakeKeylogger)
ssdeep	24576:88RiOc+fgkSbjOiJ7/AnHyhfoB+eXrFXjGZeyuqt:88RxT4k8z/AnSZ8B
Threatray	28 similar samples on MalwareBazaar
TLSH	BA15CF936388AB2FC1BE65F7B0B14847AF71C695A1CAE38B0DDCA4705DE37640DCA164
Reporter	abuse_ch
Tags:	exe NanoCore RAT

abuse_ch

Malspam distributing NanoCore:

HELO: box-smtp2.robocision.info
Sending IP: 178.175.148.197
From: EMPIRE INVESTMENTZ <postmaster@empireinvestmentz.com>
Subject: Re: Payment Remittance System
Attachment: Payment Remittance System.rar (contains "systempact.exe")

Intelligence

File Origin

# of uploads :

# of downloads :

124

Origin country :

n/a

Vendor Threat Intelligence

Detection:

NanoCore

Link:

https://www.capesandbox.com/analysis/47783/

Result

Verdict:

Malware

Maliciousness:

Behaviour

Creating a window

Creating a file in the %temp% directory

Launching a process

Creating a file

Creating a file in the %AppData% subdirectories

Sending a UDP request

Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch

Connection attempt to an infection source

Unauthorized injection to a system process

Detection:

nanocore

Link:

https://mwdb.cert.pl/sample/3640e0bfb26ad5e7cf64e2b1b927031f49b84c1dab0e4460b18de6e57904ff7e/

Threat name:

ByteCode-MSIL.Trojan.AgentTesla

Status:

Malicious

First seen:

2020-08-18 11:58:08 UTC

AV detection:

23 of 29 (79.31%)

Threat level:

5/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=gzaobp5snlk6pt3e4ky3sjydd5e3qta5vmheiyfrrxtok6ie757a._file

Verdict:

unknown

Result

Malware family:

nanocore

Score:

10/10

Tags:

persistence keylogger trojan stealer spyware family:nanocore

Link:

https://tria.ge/reports/200818-vfdsp46dqj/

Behaviour

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: GetForegroundWindowSpam

Suspicious behavior: MapViewOfSection

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Suspicious use of SetThreadContext

Adds Run key to start application

NanoCore

Malware Config

C2 Extraction:

79.134.225.36:7040

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

Threat name:

Farheyt

Score:

0.80

Link:

https://yomi.yoroi.company/submissions/3640e0bfb26ad5e7cf64e2b1b927031f49b84c1dab0e4460b18de6e57904ff7e

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_NanoCore Create hunting rule
Author:	abuse.ch

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

Rule name:	Nanocore_RAT_Feb18_1 Create hunting rule
Author:	Florian Roth
Description:	Detects Nanocore RAT
Reference:	Internal Research - T2T

Rule name:	Nanocore_RAT_Gen_2 Create hunting rule
Author:	Florian Roth
Description:	Detetcs the Nanocore RAT
Reference:	https://www.sentinelone.com/blogs/teaching-an-old-rat-new-tricks/