MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 2e5c106e46742f3396ac7b2fb74f0aff1981ea83fc99bfbaa6a1fea1699b9246. 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:	2e5c106e46742f3396ac7b2fb74f0aff1981ea83fc99bfbaa6a1fea1699b9246
SHA3-384 hash:	4e2581286b24bafd9141e3b82c5673870e0b1de63a224092b06190d3763c5c0b59f81aad71675ea17a39dd4620472385
SHA1 hash:	dfd7be9e7e2a9dda53c7ec958fe6975ec9a88623
MD5 hash:	db146573d690fe5a153d2b3bd1d7b212
humanhash:	carpet-india-monkey-low
File name:	lista wymaganych zamówień.exe
Download:	download sample
Signature	NanoCore Create hunting rule
File size:	1'187'840 bytes
First seen:	2020-08-05 09:33:13 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep	24576:jXP9HVFfpV2cNUCa4HB6tBqg71kzgTctpwKpwcWyv:79dV2cNJUjegTctpRphWy
Threatray	27 similar samples on MalwareBazaar
TLSH	5D45D0A53984DF9DC96E0F3074231810EBF1AE060E16F74FACD679EC56B958A4E1670C
Reporter	abuse_ch
Tags:	exe geo NanoCore POL RAT

abuse_ch

Malspam distributing NanoCore:

HELO: hwsrv-758891.hostwindsdns.com
Sending IP: 104.168.203.3
From: Franciszek Andrzejewski <info@loburig.com>
Subject: RE: 05.08.2020/lista wymaganych zamówień
Attachment: lista wymaganych zamówień.r01 (contains "lista wymaganych zamówień.exe")

Intelligence

File Origin

# of uploads :

# of downloads :

102

Origin country :

n/a

Vendor Threat Intelligence

Detection:

n/a

Link:

https://www.capesandbox.com/analysis/39381/

Detection(s):

SecuriteInfo.com.CIL.HeapOverride.Heur.10229.UNOFFICIAL

Result

Verdict:

Malware

Maliciousness:

Behaviour

Creating a window

Sending a UDP request

Result

Threat name:

Nanocore

Detection:

malicious

Classification:

troj.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/410891

Signature

.NET source code contains potential unpacker

Allocates memory in foreign processes

Detected Nanocore Rat

Found malware configuration

Injects a PE file into a foreign processes

Machine Learning detection for dropped file

Machine Learning detection for sample

Malicious sample detected (through community Yara rule)

Sigma detected: NanoCore

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

Writes to foreign memory regions

Yara detected AntiVM_3

Yara detected Nanocore RAT

Behaviour

Behavior Graph:

Download SVG

Detection:

nanocore

Link:

https://mwdb.cert.pl/sample/2e5c106e46742f3396ac7b2fb74f0aff1981ea83fc99bfbaa6a1fea1699b9246/

Threat name:

ByteCode-MSIL.Trojan.AgentTesla

Status:

Malicious

First seen:

2020-08-05 09:35:06 UTC

AV detection:

22 of 29 (75.86%)

Threat level:

5/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=fzoba3sgoqxthfvmpmx3otyk74myd2ud7sm37ovguh7kc2m3sjda._file

Verdict:

unknown

Result

Malware family:

nanocore

Score:

10/10

Tags:

keylogger trojan stealer spyware family:nanocore evasion

Link:

https://tria.ge/reports/200805-1rjblfysc6/

Behaviour

Suspicious behavior: GetForegroundWindowSpam

Creates scheduled task(s)

Suspicious use of AdjustPrivilegeToken

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

Suspicious use of SetThreadContext

Checks whether UAC is enabled

NanoCore

Malware Config

C2 Extraction:

mn255.freeddns.org:1605

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/2e5c106e46742f3396ac7b2fb74f0aff1981ea83fc99bfbaa6a1fea1699b9246

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/