MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b4a60a5fdddebf1351aa77b5ae1b850c8f53312cbe7e3792a0adbd3a458c70ba. 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: b4a60a5fdddebf1351aa77b5ae1b850c8f53312cbe7e3792a0adbd3a458c70ba
SHA3-384 hash: dd68143451953a27a00fc9cdfdae5b56886751dcf74dae7b5a423248b1b74c5810e0db772d7db997d6c8aee72628a8d0
SHA1 hash: b491d5687f2ae3c16ee329b9b7d83255787d5d65
MD5 hash: a545c585fdb84c6e92484da233292e25
humanhash: uranus-angel-one-michigan
File name:PDF.exe
Download: download sample
Signature NanoCore
Create hunting rule
File size:364'544 bytes
First seen:2020-05-01 11:46:32 UTC
Last seen:2020-05-01 13:03:27 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'650 x AgentTesla, 19'462 x Formbook, 12'203 x SnakeKeylogger)
ssdeep 6144:WUjDbix1YmV1Fq3rp3CEQmcIvIo/NSWi4F0lwZVPrCEVBkS2k:WU2x+Uqt3CEQmcI5iV0VzCg
Threatray 1'122 similar samples on MalwareBazaar
TLSH 447402391BA8EB3AC99E497DCD25594083F1C1D13D77FB87BEA173B49C63351892028A
Reporter abuse_ch
Tags:CHE exe geo NanoCore RAT


Avatar
abuse_ch
Malspam distributing NanoCore:

HELO: dharmajaya.co.id
Sending IP: 103.113.170.147
From: Carabineros de Chile <invitations@carabineros.cl>
Subject: Invitación final de los Carabineros de Chile.
Attachment: PDF.arj (contains "PDF.exe")

NanoCore RAT C2:
172.111.188.199:8829

Intelligence

File Origin
# of uploads :
2
# of downloads :
97
Origin country :
n/a
Vendor Threat Intelligence
Detection(s):
SecuriteInfo.com.Trojan.Siggen9.43642.4883.20463.UNOFFICIAL
Create hunting rule

Gathering data
Threat name:
ByteCode-MSIL.Trojan.Kryptik
Create hunting rule
Status:
Malicious
First seen:
2020-04-30 20:53:47 UTC
File Type:
PE (.Net Exe)
Extracted files:
4
AV detection:
28 of 31 (90.32%)
Threat level:
  2/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=wstaux65327rgunko6224g4fbshvgmjmxz7dpevavw6turmmoc5a._file
Verdict:
malicious
Label(s):
nanocorerat
Create hunting rule
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NanoCore
+ 1'112 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

zip 5b0eb5664dc373aa5e2c59229bb23e88d02b04f8054cd04a37bf218c4692aada

NanoCore

Executable exe b4a60a5fdddebf1351aa77b5ae1b850c8f53312cbe7e3792a0adbd3a458c70ba

(this sample)

  
Dropped by
MD5 f340014c686c3ff40946cab4d3117807
  
Delivery method
Distributed via e-mail attachment
  
Dropped by
SHA256 5b0eb5664dc373aa5e2c59229bb23e88d02b04f8054cd04a37bf218c4692aada

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

Comments