MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 99e8759e702f1bec43e3646d6c217523a4062918226541899ba710f37c51a12c. 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:	99e8759e702f1bec43e3646d6c217523a4062918226541899ba710f37c51a12c
SHA3-384 hash:	bd0ade4c40b874a08f0e6e82712f555ad341d2f2b69244ff5a156320f410aa4c384f188fc9e1d74ac63de33fccb42db2
SHA1 hash:	306f85e89241b6ee2fe694cb429b5afedf7a2f1c
MD5 hash:	6fe50a531deded71af1475baa734000f
humanhash:	delta-potato-burger-magazine
File name:	PROOF OF PAYMENTS.exe
Download:	download sample
Signature	NanoCore Create hunting rule
File size:	409'600 bytes
First seen:	2020-07-06 09:10:54 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep	6144:bm7SjG7i+n3HAApBz+HVlsicqcf1D6ReFOKtb4GeJMQfFDR/ZtFRognv6MOw6I:SuiPn3VkCfY4FO08TMODR/DnPvr6I
Threatray	1'601 similar samples on MalwareBazaar
TLSH	0494D0730246BFEEE73D4E78D15412801DF85D5BEB30C54ABDC831DA22B6B2499B8A71
Reporter	abuse_ch
Tags:	exe NanoCore nVpn RAT

abuse_ch

Malspam distributing NanoCore:

HELO: stpauls.stpaulsl.local
Sending IP: 97.82.28.20
From: ASETLINE FINANCE<asetline.za@gmail.com>
Reply-To: <asetline.za@gmail.com>
Subject: PROOF OF PAYMENT
Attachment: PROOF OF PAYMENTS.UUE (contains "PROOF OF PAYMENTS.exe")

NanoCore RAT C2:
nansedd.duckdns.org:2133 (194.5.99.139)

Pointing to nVpN:

% Information related to '194.5.99.0 - 194.5.99.255'

% Abuse contact for '194.5.99.0 - 194.5.99.255' is 'abuse@inter-cloud.tech'

inetnum: 194.5.99.0 - 194.5.99.255
netname: INTER_CLOUD_SERVICES_RUSSIA
admin-c: ICTR1-RIPE
tech-c: ICTR1-RIPE
org: ORG-ICR2-RIPE
country: RU
status: ASSIGNED PA
mnt-by: inter-cloud-mnt
created: 2019-07-20T20:42:53Z
last-modified: 2020-07-04T13:20:18Z
source: RIPE

Intelligence

File Origin

# of uploads :

# of downloads :

104

Origin country :

n/a

Vendor Threat Intelligence

Detection:

NanoCore

Link:

https://www.capesandbox.com/analysis/21420/

Detection(s):

SecuriteInfo.com.Generic-EXE.UNOFFICIAL

Result

Verdict:

Malware

Maliciousness:

Behaviour

Creating a window

Unauthorized injection to a recently created process

Creating a file in the %AppData% subdirectories

Creating a file in the Program Files subdirectories

DNS request

Using the Windows Management Instrumentation requests

Deleting a recently created file

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

Sending a TCP request to an infection source

Detection:

nanocore

Link:

https://mwdb.cert.pl/sample/99e8759e702f1bec43e3646d6c217523a4062918226541899ba710f37c51a12c/

Threat name:

ByteCode-MSIL.Trojan.AgentTesla

Status:

Malicious

First seen:

2020-07-06 09:12:07 UTC

AV detection:

22 of 29 (75.86%)

Threat level:

5/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=thuhlhtqf4n6yq7dmrwwyilveosamkiyejsudcm3u4ipg7cruewa._file

Verdict:

malicious

Label(s):

nanocorerat

NanoCore

5adb192079fbc16f4631d3e5c894d9bec1ed384e7be85742c4f076760eb64a0f

NanoCore

7398233b8b5b0e13643fcb65b54db72b99b5d2970415ab41fcdb037a780ade7d

NanoCore

78bb05f8287c0a41174d810b2e9954b3010b523777ba521ba8336219501bded4

NanoCore

7b6c1b2aaa6f7f89812ed6be3f275ff5de8827c61b14372242a617604baa0e8c

NanoCore

7d1ce7961e394f55fb7162e18e6cf587faa463d29ba5976eaad83b409f060621

NanoCore

8b17398f591b8e917b1d436044e456bb88e2e482f9b82370dfe3acdcb92deb40

NanoCore

cff3d5fedc8fdab09a7b27524a02503b53f4f7378ab0a09219701d3b9c3e68f4

NanoCore

e583f88a5a2f0078444fa97cfd8b4357bce832202ec6140ade6239e7687c1850

NanoCore

f5b99bdcb3a09ccef9455e82dff1902b6913280d293be51d87de78fc418e9f72

NanoCore

+ 1'591 additional samples on MalwareBazaar

Result

Malware family:

nanocore

Score:

10/10

Tags:

evasion trojan keylogger stealer spyware family:nanocore persistence

Link:

https://tria.ge/reports/200706-dh4t1h99f2/

Behaviour

Suspicious behavior: GetForegroundWindowSpam

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Drops file in Program Files directory

Suspicious use of SetThreadContext

Adds Run entry to start application

Checks whether UAC is enabled

Reads user/profile data of web browsers

Uses the VBS compiler for execution

NanoCore

Malware Config

C2 Extraction:

nansedd.duckdns.org:2133

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:	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/