MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c1c841ab92fcc7f486280ba17d8e08dfd8626c2b7adad80bc83bd27794dde5e6. 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: 4

Intelligence 4 IOCs YARA 8 File information Comments

SHA256 hash:	c1c841ab92fcc7f486280ba17d8e08dfd8626c2b7adad80bc83bd27794dde5e6
SHA3-384 hash:	846f41785ca7217172f32a53b7d5f06c8f552dbb121086d309a408068ea0180662a708a55c2e2d2c0c44f47f936cda56
SHA1 hash:	b5cf37e94718e6a284aecb0ac3349bc77f4a5dca
MD5 hash:	4b81423bd3c9d350fd41a6cdb7e90aee
humanhash:	sad-cardinal-missouri-burger
File name:	pagos6378998.scr
Download:	download sample
Signature	NanoCore Create hunting rule
File size:	2'346'432 bytes
First seen:	2020-05-26 15:16:39 UTC
Last seen:	2020-06-10 12:11:05 UTC
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (48'663 x AgentTesla, 19'478 x Formbook, 12'208 x SnakeKeylogger)
ssdeep	24576:5SB6N9vZ47pDpxymXfIBtE5U0J0OJq5QnB0GZeX0PsF0zu:5/fvZ0pDpUG9Q5QJeK+7
Threatray	12'633 similar samples on MalwareBazaar
TLSH	BDB56D257E41C41AD72E02B53C6A99B065337FC939748A0E35EAB71C7F32387362B54A
Reporter	abuse_ch
Tags:	ESP geo NanoCore nVpn Outlook RAT scr

Code Signing Certificate

Organisation:	LLC Mail.Ru
Issuer:	thawte SHA256 Code Signing CA
Algorithm:	sha256WithRSAEncryption
Valid from:	Aug 24 00:00:00 2018 GMT
Valid to:	Aug 23 23:59:59 2020 GMT
Serial number:	6D5DA98939DA5017B80168D309DD3367
Intelligence:	6 malware samples on MalwareBazaar are signed with this code signing certificate
Thumbprint Algorithm:	SHA256
Thumbprint:	5752C31DEFFA6C4F7897B75F181D83EE621F7F13B2965908748440CD3A064107
Source:	This information was brought to you by ReversingLabs A1000 Malware Analysis Platform

abuse_ch

Malspam distributing NanoCore:

HELO: NAM10-MW2-obe.outbound.protection.outlook.com
Sending IP: 52.100.157.229
From: Nieves Teresa Pardo Carrillo <nieves.pardo@educacion.gob.ec>
Subject: Información de pago y cuenta
Attachment: pagos6378998.img (contains "pagos6378998.scr")

NanoCore RAT C2:
philbillibilli.duckdns.org:8153 (185.140.53.22)

Pointing to nVpn:

% Information related to '185.140.53.0 - 185.140.53.255'

% Abuse contact for '185.140.53.0 - 185.140.53.255' is 'abuse@FOS-VPN.org'

inetnum: 185.140.53.0 - 185.140.53.255
netname: Freedom_Of_Speech_VPN
remarks: Before you contact us, please read:
remarks: 185.140.53.0/24 belongs to a NON-LOGGING VPN service.
remarks: We don't log any user activities.
remarks: We believe that the right to informational self-determination and the
remarks: right to privacy are essential to all citizens of all countries.
remarks: We don't host anything else on our servers than VPN software and our
remarks: customers can open a fixed number of Ports.
remarks: Like Public WiFi or Tor Exit Node Operators we cannot be held responsible
remarks: for the actions of our customers, because we simply can't (and to be
remarks: honest: don't want) to control them.
country: EU
org: ORG-SL751-RIPE
admin-c: SL12644-RIPE
tech-c: SL12644-RIPE
status: ASSIGNED PA
mnt-by: FOS-VPN-MNT
created: 2016-10-17T23:24:00Z
last-modified: 2020-04-06T18:59:49Z
source: RIPE

Intelligence

File Origin

# of uploads :

# of downloads :

Origin country :

n/a

Vendor Threat Intelligence

Detection(s):

SecuriteInfo.com.CAP_HookExKeylogger.14122.19961.UNOFFICIAL

Gathering data

Threat name:

ByteCode-MSIL.Trojan.Kryptik

Status:

Malicious

First seen:

2020-05-26 15:35:47 UTC

File Type:

PE (.Net Exe)

Extracted files:

AV detection:

19 of 30 (63.33%)

Threat level:

2/5

Verdict:

malicious

Label(s):

nanocorerat

agenttesla

hawkeyekeylogger

NanoCore

3b025fa14fdaeb405c00985f5b7a52f0f2a4b5851f338021b594af6881b3e8a7

NanoCore

3f7579a12e92960bfe46af7ea9bc9ac716c374b214e1f03c5f9fb504708ea63f

NanoCore

5fb13ec9aec5b17f482da9aa1b4843d58721d0c99090e9f6cb3a88940666cc61

NanoCore

6518adaaa71c4f2d21522a72e0f16c0a6675d9bf08a844de757cf4c0f4dfc1c8

NanoCore

8359e964cc6f542d0b069ece3e6529726d432b4946e054ac3b1c1bedcef2f7d8

NanoCore

86e5796ae957a22f0b55caae1fee9af102cea6e31fca38e4334a50f0b5e57971

NanoCore

9463f129f4dec7224eb12c262e080ffa58c104bde38104319ab69d2fdb8919ee

NanoCore

baaf2981e64ed0745b71f49dc599ece70213ac2f805d8d1a4f254f9bb3fcc5cc

NanoCore

c04c4bb521cb18dc16fbacc4220c0f854bfadfdc0c016ec6fd868d52fe8c3e08

NanoCore

+ 12'623 additional samples on MalwareBazaar

Result

Malware family:

nanocore

Score:

10/10

Tags:

family:agenttesla family:nanocore agilenet evasion keylogger persistence spyware stealer trojan upx

Link:

https://tria.ge/reports/201109-6yf1empzga/

Behaviour

NTFS ADS

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: GetForegroundWindowSpam

Suspicious behavior: MapViewOfSection

Suspicious behavior: SetClipboardViewer

Suspicious use of AdjustPrivilegeToken

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

Modifies service

Suspicious use of SetThreadContext

Adds Run key to start application

Checks whether UAC is enabled

Drops startup file

Loads dropped DLL

Obfuscated with Agile.Net obfuscator

Reads data files stored by FTP clients

Reads user/profile data of local email clients

Reads user/profile data of web browsers

Executes dropped EXE

UPX packed file

AgentTesla Payload

AgentTesla

NanoCore

Malware Config

C2 Extraction:

donphilongz.org:8153
philbillibilli.duckdns.org:8153

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_NanoCore Create hunting rule
Author:	abuse.ch

Rule name:	Agenttesla_type2 Create hunting rule
Author:	JPCERT/CC Incident Response Group
Description:	detect Agenttesla in memory
Reference:	internal research

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:	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/

Rule name:	win_agent_tesla_w1 Create hunting rule
Author:	govcert_ch
Description:	Detect Agent Tesla based on common .NET code sequences

Rule name:	win_nanocore_w0 Create hunting rule
Author:	Kevin Breen <kevin@techanarchy.net>

File information

The table below shows additional information about this malware sample such as delivery method and external references.

d49e3bed77ac20c21c7cb0d406617999

NanoCore

exe c1c841ab92fcc7f486280ba17d8e08dfd8626c2b7adad80bc83bd27794dde5e6

(this sample)

Dropped by

MD5 d49e3bed77ac20c21c7cb0d406617999

Delivery method

Distributed via e-mail attachment

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