MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 944b633d92799fe6aeefae5de7945b6b0b69020ed669d9d7e68ebd80868771e6. 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: 6


Intelligence 6 IOCs YARA 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 944b633d92799fe6aeefae5de7945b6b0b69020ed669d9d7e68ebd80868771e6
SHA3-384 hash: d39cf9d8965f899372090e4d5e8f0c4dbbb09376b0b8b222e893ba74618593706de209fad65c2d3a9be64f46a37949b6
SHA1 hash: 920e2fadf1372cd0d0f0c5f086d18a7eda79587f
MD5 hash: 2b88bb3a1dc7d15f7ee00323f4d8f142
humanhash: beer-washington-three-seventeen
File name:USPS.exe
Download: download sample
Signature NanoCore
Create hunting rule
File size:1'313'792 bytes
First seen:2020-06-17 18:15:37 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:ntb20pkaCqT5TBWgNQ7acSi0NxuYCupJskuM6A:kVg5tQ7ac6xu7khf5
Threatray 2'224 similar samples on MalwareBazaar
TLSH 6255AE12339D8261F27D61737A156701EE7BE8250361B4EB1FB68B3CAB131A1073A767
Reporter abuse_ch
Tags:exe NanoCore nVpn RAT USPS


Avatar
abuse_ch
Malspam distributing NanoCore:

HELO: zimbra.fcjcorp.com
Sending IP: 54.158.42.8
From: USPS Dispatch <pedro.henrique@medbeta.com.br>
Reply-To: NOREPLY@USPS.COM
Subject: Pickup
Attachment: USPS.IMG (contains "USPS.exe")

NanoCore RAT C2:
u852121.nvpn.to:3410 (91.192.100.17)

Pointing to nVpn:

% Information related to '91.192.100.1 - 91.192.100.63'

% Abuse contact for '91.192.100.1 - 91.192.100.63' is 'abuse@libertas-international.eu'

inetnum: 91.192.100.1 - 91.192.100.63
netname: LIBERTAS_NETWORK
remarks: ----------------------------------------------
remarks: Libertas Network is a VPN service provider.
remarks: We have a strict non-logging policy, therefore
remarks: we don't record any logs on our servers.
remarks: ----------------------------------------------
country: CH
admin-c: LNAD1-RIPE
org: ORG-LNVS1-RIPE
tech-c: LNAD1-RIPE
status: ASSIGNED PA
mnt-by: MNT-DA327
created: 2019-12-12T08:51:11Z
last-modified: 2020-02-10T07:01:46Z
source: RIPE

Intelligence

File Origin
# of uploads :
1
# of downloads :
92
Origin country :
n/a
Vendor Threat Intelligence
Detection:
NanoCore
Create hunting rule
Link:
https://www.capesandbox.com/analysis/19552/
Detection(s):
Sanesecurity.Malware.27686.AidExe.UNOFFICIAL
Create hunting rule

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

Gathering data
Threat name:
Win32.Trojan.Predator
Create hunting rule
Status:
Malicious
First seen:
2020-06-17 18:36:24 UTC
AV detection:
22 of 28 (78.57%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=srfwgpmspgp6nlxpvzo6pfc3nmfwsaqo2zu5tv7gr26ybbuhohta._file
Verdict:
malicious
Label(s):
nanocorerat
Create hunting rule
hawkeyekeylogger
Create hunting rule
emotet
Create hunting rule
Similar samples:
02b10c6690bd0ed3e9b675553519df78a7ede63a398d68304043eacb691fd305
NanoCore
19dcafec37ae1784254a1e687c89f28f211b833a8ed7c5437db9443c5f51336c
NanoCore
3964739a8988be3dc3ffe71ce4fdd86bfef579f4cfdfac1c97d123805cd0ea2a
NanoCore
6c683dafa36114d562c985059802ad2fa0ec2df2f136e88e6f08cc7e88d919fc
NanoCore
6c775aa70b8dadbb9725cab1c2de67c64eac6c019537d2540eb37d6b2fb7af4c
NanoCore
71b9cfc637c0d49cc0375574e6254b09545d4ebc584b734aa8e35cf04b991332
NanoCore
a97cbea3af021993de44693e3dc76121041e99a3d21e4936f84341952e1464cd
NanoCore
d1890599ae15f13b1fc26efd5221a7a20949db644edc28aa3480c0042dc0a6fc
NanoCore
dc28fee9ff485f98bb7a9369a6e24ad8f1a63c123cc9c39ee676d933e1999fc6
NanoCore
f8ff57b39131774171a58b4bc7784384a8823eeed42179505e9edfef7a002655
NanoCore
+ 2'214 additional samples on MalwareBazaar
Result
Malware family:
nanocore
Create hunting rule
Score:
  10/10
Tags:
evasion trojan keylogger stealer spyware family:nanocore
Link:
https://tria.ge/reports/200624-4hkhkvltns/
Behaviour
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of FindShellTrayWindow
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: EnumeratesProcesses
Suspicious use of SetThreadContext
Checks whether UAC is enabled
Drops startup file
NanoCore
Malware Config
C2 Extraction:
u852121.nvpn.to:3410
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

img 9973ff08337e84d15ceaa51863c1b0c26fd6c31c51a76916174410eb077cde6f

NanoCore

Executable exe 944b633d92799fe6aeefae5de7945b6b0b69020ed669d9d7e68ebd80868771e6

(this sample)

  
Dropped by
MD5 9fd04b84f91d61efbc538a9a309e8e11
  
Delivery method
Distributed via e-mail attachment
  
Dropped by
SHA256 9973ff08337e84d15ceaa51863c1b0c26fd6c31c51a76916174410eb077cde6f
Cape
Cape
https://www.capesandbox.com/analysis/19552/

Comments