MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 67fef2f83af3da398f5e144ccc65e18d7d30b57f53d94658cd62fe53d5e3d81b. 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: 5


Intelligence 5 IOCs YARA 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 67fef2f83af3da398f5e144ccc65e18d7d30b57f53d94658cd62fe53d5e3d81b
SHA3-384 hash: 295567ef742a8b813a0a5524e643f64fb377a3c0e4706fc0627d76e3f1bbaf7ea573b06feab0d13df91ad8feb88528b6
SHA1 hash: 843f674424ae7f34e884e8c6eba8f4a4003696d2
MD5 hash: e8871884f90cd4f312dce5cf1f136124
humanhash: river-four-beer-winter
File name:4yo8vCCxQ20xV3d.exe
Download: download sample
Signature NanoCore
Create hunting rule
File size:516'096 bytes
First seen:2020-06-10 18:49:25 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'600 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 6144:1Tyyh6kzfYOUHCFTTQQ6ZUv48QKZVoFdu9xDb8myFhJBVoC3fL7l3aAJNZHdXdw:1kkzYOUHrmS8+Hu91b8tVx3BNZHdXK
Threatray 3'656 similar samples on MalwareBazaar
TLSH A2B4BF04B6D57E4EC26F8D7A44172910ABF155677E0BF3839DCB24DA682DFC60A00B9B
Reporter abuse_ch
Tags:exe NanoCore nVpn RAT


Avatar
abuse_ch
Malspam distributing NanoCore:

HELO: vps.busonard.com
Sending IP: 45.95.169.17
From: Maria Lopez <info@busonard.com>
Subject: Re: Detalles de transferencia
Attachment: Detalles de transferencia.r11 (contains "4yo8vCCxQ20xV3d.exe")

RemcosRAT C2:
185.140.53.11:6532

Hosted on 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 :
1
# of downloads :
77
Origin country :
n/a
Vendor Threat Intelligence
Gathering data
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2020-06-10 18:51:05 UTC
AV detection:
25 of 31 (80.65%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=m77pf6b26pndtd26crgmyzpbrv6tbnl7kpmumwgnml7fhvpd3anq._file
Verdict:
malicious
Label(s):
nanocorerat
Create hunting rule
agenttesla
Create hunting rule
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NanoCore
+ 3'646 additional samples on MalwareBazaar
Result
Malware family:
nanocore
Create hunting rule
Score:
  10/10
Tags:
family:nanocore keylogger spyware stealer trojan
Link:
https://tria.ge/reports/201109-alk3nm5vdn/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
NanoCore
Malware Config
C2 Extraction:
185.140.53.11:6532
127.0.0.1:6532
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/
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.

b7dfc66daa9678e2af2bd8fd243d8f1d

NanoCore

Executable exe 67fef2f83af3da398f5e144ccc65e18d7d30b57f53d94658cd62fe53d5e3d81b

(this sample)

  
Dropped by
MD5 b7dfc66daa9678e2af2bd8fd243d8f1d
  
Delivery method
Distributed via e-mail attachment

Comments