MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f8ff57b39131774171a58b4bc7784384a8823eeed42179505e9edfef7a002655. 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: f8ff57b39131774171a58b4bc7784384a8823eeed42179505e9edfef7a002655
SHA3-384 hash: 4841a6919e83f60c2d78a2fb5102e9f7e68ac3abae25811b89fd7c67be77ee0267a860a53ce871592a8b1104c983a558
SHA1 hash: da82a4f352f1f813bac32b96ff5e0591511ae4d5
MD5 hash: 16e0ddef3355a58eda41c3285d130759
humanhash: lake-juliet-chicken-wolfram
File name:attachedfile..exe
Download: download sample
Signature NanoCore
Create hunting rule
File size:1'388'032 bytes
First seen:2020-06-08 06:28:15 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 3d95adbf13bbe79dc24dccb401c12091 (881 x AgentTesla, 737 x FormBook, 236 x SnakeKeylogger)
ssdeep 24576:Dtb20pkaCqT5TBWgNQ7akdCZ/XDhQ9NjVrR9RaVOniaV6A:AVg5tQ7akdCloNlR9RPni+5
Threatray 2'255 similar samples on MalwareBazaar
TLSH 0B55BE1263AD8262F27E51737A157701FE7B782915A0F8FB2FB4093C98131614F1A6AF
Reporter abuse_ch
Tags:exe NanoCore nVpn RAT SCB


Avatar
abuse_ch
Malspam distributing NanoCore:

HELO: pmrelo.com
Sending IP: 103.240.91.86
From: Standard Chartered Bank <Account@transfopam.com>
Reply-To: sjrkintluea@gmail.com
Subject: Advice from Standard Chartered Bank
Attachment: Paymentslip..7z (contains "attachedfile..exe")

NanoCore RAT C2:
185.165.153.26:1985

Hosted on nVpn:

% Information related to '185.165.153.0 - 185.165.153.255'

% Abuse contact for '185.165.153.0 - 185.165.153.255' is 'abuse@privacy-matters.co'

inetnum: 185.165.153.0 - 185.165.153.255
netname: PRIVACY_MATTERS
remarks: This prefix belongs to a VPN service provider.
remarks: For us the privacy of our customers matters, which means we store no logs
remarks: related to any IP addresses.
remarks: Spamhaus, please note that blacklisting the clean prefixes of our hosting
remarks: partners and upstream providers is an act of coercion and will no longer
remarks: be tolerated.
remarks: Coercion is punishable by a custodial sentence or by a monetary penalty.
remarks: If you continue such practice we will not only take legal actions against
remarks: your organization, but also make such blackmailing attempts public in the
remarks: media.
country: AT
admin-c: PMVS3-RIPE
tech-c: PMVS3-RIPE
org: ORG-PMVS1-RIPE
status: ASSIGNED PA
mnt-by: PM-MNT
created: 2019-10-18T12:14:26Z
last-modified: 2019-10-18T13:31:16Z
source: RIPE

Intelligence

File Origin
# of uploads :
1
# of downloads :
70
Origin country :
n/a
Vendor Threat Intelligence
Detection(s):
Sanesecurity.Malware.27686.AidExe.UNOFFICIAL
Create hunting rule

Sanesecurity.Malware.27681.XorExe.UNOFFICIAL
Create hunting rule

SecuriteInfo.com.PSW.Agent.BORA.UNOFFICIAL
Create hunting rule

Gathering data
Threat name:
Win32.Trojan.Wacatac
Create hunting rule
Status:
Malicious
First seen:
2020-06-07 23:47:10 UTC
AV detection:
23 of 28 (82.14%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=7d7vpm4rgf3uc4nfrnf4o6cdqsuiepxo2qqxsuc6t3p666qaezkq._file
Verdict:
malicious
Label(s):
nanocorerat
Create hunting rule
hawkeyekeylogger
Create hunting rule
emotet
Create hunting rule
Similar samples:
02b10c6690bd0ed3e9b675553519df78a7ede63a398d68304043eacb691fd305
NanoCore
17fa709f1a866d573f997f8f1288d537de382cccc5a4f9c1811db9da34c016b2
NanoCore
3964739a8988be3dc3ffe71ce4fdd86bfef579f4cfdfac1c97d123805cd0ea2a
NanoCore
5e09510e834b75413af64e013eda43df867fab6080facf4227a08ca64861a244
NanoCore
6c683dafa36114d562c985059802ad2fa0ec2df2f136e88e6f08cc7e88d919fc
NanoCore
71b9cfc637c0d49cc0375574e6254b09545d4ebc584b734aa8e35cf04b991332
NanoCore
944b633d92799fe6aeefae5de7945b6b0b69020ed669d9d7e68ebd80868771e6
NanoCore
a97cbea3af021993de44693e3dc76121041e99a3d21e4936f84341952e1464cd
NanoCore
d1890599ae15f13b1fc26efd5221a7a20949db644edc28aa3480c0042dc0a6fc
NanoCore
dc28fee9ff485f98bb7a9369a6e24ad8f1a63c123cc9c39ee676d933e1999fc6
NanoCore
+ 2'245 additional samples on MalwareBazaar
Result
Malware family:
nanocore
Create hunting rule
Score:
  10/10
Tags:
family:nanocore keylogger persistence spyware stealer trojan
Link:
https://tria.ge/reports/201109-d149wa3fba/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Drops file in Program Files directory
Suspicious use of SetThreadContext
Adds Run key to start application
Drops startup file
NanoCore
Malware Config
C2 Extraction:
185.165.153.26:1985
127.0.0.1:1985
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.

Malspam

NanoCore

7z bcef0104776769d49c730e2670ee08a50eb65044bca0c5b8e7846eb1123d8850

NanoCore

Executable exe f8ff57b39131774171a58b4bc7784384a8823eeed42179505e9edfef7a002655

(this sample)

  
Dropped by
MD5 133a392873d12c90c077613494adcd2a
  
Delivery method
Distributed via e-mail attachment
  
Dropped by
SHA256 bcef0104776769d49c730e2670ee08a50eb65044bca0c5b8e7846eb1123d8850

Comments