MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 29afa981ce52f6dad0abae61dbb87c09fa3cf5b8a0aa6fafc0f59d3796a8dbb4. 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 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 29afa981ce52f6dad0abae61dbb87c09fa3cf5b8a0aa6fafc0f59d3796a8dbb4
SHA3-384 hash: e242d2b3a1adf0bc092bdc0e5ce1bcf961ec15464d54315f34fd857b782cd84306ac206f91c7c40c5f06271d072435e0
SHA1 hash: 357ef8b6cef29c47f7a3e7105fd166ec03ab7e7a
MD5 hash: cee5488729e74df7282c349ef4de61cc
humanhash: california-ohio-failed-solar
File name:Anti_ covid19_Iwantani_vietnam_co.exe
Download: download sample
Signature NanoCore
Create hunting rule
File size:417'792 bytes
First seen:2020-04-14 09:41:25 UTC
Last seen:2020-04-14 10:54:52 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'749 x AgentTesla, 19'653 x Formbook, 12'246 x SnakeKeylogger)
ssdeep 6144:hktZVX7FT7M2/maSLS404h/i/c/yRKSW3kF0/hCJLX0riXn890uTgbY:Sp3MkMS4u1WUF0pCJLXsiXn60uT
Threatray 2'685 similar samples on MalwareBazaar
TLSH 5A94AE89B600E08DCC3B97B0E9394DF0551B3C7AD635614F6A4B7E7877BB0D38A26096
Reporter abuse_ch
Tags:COVID-19 exe NanoCore nVpn RAT


Avatar
abuse_ch
COVID-19 themed malspam distributing NanoCore RAT:

HELO: s1.1webhostingindia.com
Sending IP: 67.43.15.82
From: Iwatani Vietnam <nhule.iwatani@gmail.com>
Subject: Anti-covid-19 items
Attachment: Anti_ covid19_Iwantani_vietnam_co.arj (contains "Anti_ covid19_Iwantani_vietnam_co.exe")

NanoCore RAT C2:
185.244.29.199:4488

Hosted on nvpn:

% Information related to '185.244.29.0 - 185.244.29.255'

% Abuse contact for '185.244.29.0 - 185.244.29.255' is 'abuse@gerber-edv.net'

inetnum: 185.244.29.0 - 185.244.29.255
netname: GERBER-NETWORK
descr: Wonsan, Kangwon-do
descr: Choson Minjujuui Inmin Konghwaguk
country: KP

Intelligence

File Origin
# of uploads :
2
# of downloads :
94
Origin country :
n/a
Vendor Threat Intelligence
Detection(s):
SecuriteInfo.com.Trojan.DownLoader33.32175.28869.15037.UNOFFICIAL
Create hunting rule

Gathering data
Threat name:
ByteCode-MSIL.Trojan.Kryptik
Create hunting rule
Status:
Malicious
First seen:
2020-04-14 00:45:05 UTC
File Type:
PE (.Net Exe)
Extracted files:
2
AV detection:
24 of 31 (77.42%)
Threat level:
  2/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=fgx2taookl3nvuflvzq5xod4bh5dz5nyucvg7l6a6wotpfvi3o2a._file
Verdict:
malicious
Label(s):
hawkeyekeylogger
Create hunting rule
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+ 2'675 additional samples on MalwareBazaar
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

arj 40b5b5c2ec38581616fce2f92f20dd5fa4f1cc1a5fcd516283d8ed752b67bf2b

NanoCore

Executable exe 29afa981ce52f6dad0abae61dbb87c09fa3cf5b8a0aa6fafc0f59d3796a8dbb4

(this sample)

  
Dropped by
MD5 9a3b5733f3db497fbc43a3a8bb1c78f0
  
Dropped by
SHA256 40b5b5c2ec38581616fce2f92f20dd5fa4f1cc1a5fcd516283d8ed752b67bf2b
  
Delivery method
Distributed via e-mail attachment

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (HIGH_ENTROPY_VA)high

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