MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a6d3661a9cff2af1b242728e8e461985eb08e382124f28b7fb64d49f101b11c7. 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: 8


Intelligence 8 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a6d3661a9cff2af1b242728e8e461985eb08e382124f28b7fb64d49f101b11c7
SHA3-384 hash: e3bdd4f0a11f3934a58bf22f2c6151470c93aaf8c59b7e3194e82c6a7c0383f1c166c2b1584fed4a6a28eed11ec8082a
SHA1 hash: 882b888ea456901276a4bd9eeb6ea3cdb740797a
MD5 hash: 13a1590fe3ab38d0e7daf02066772474
humanhash: pluto-hamper-equal-arkansas
File name:a6d3661a9cff2af1b242728e8e461985eb08e382124f28b7fb64d49f101b11c7
Download: download sample
Signature NanoCore
Create hunting rule
File size:745'472 bytes
First seen:2021-05-13 14:29:53 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'748 x AgentTesla, 19'647 x Formbook, 12'245 x SnakeKeylogger)
ssdeep 12288:PmAlc4wl7bo02IpUABzGCISg86ydUrZiir6b54/qMQS8SyXDZEgSaBz:PmAl41eIhGCIZaUrZXum/pnU1EgSoz
TLSH 4EF4AD2263985F95E0BDE738E830C2009BF2FE87F311EE4E7EA920DA15D6F464751652
Reporter madjack_red
Tags:NanoCore

Intelligence

File Origin
# of uploads :
1
# of downloads :
102
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
AWB#25042021178834.PDF.GZ
Verdict:
Malicious activity
Analysis date:
2021-05-12 23:30:31 UTC
Tags:
rat nanocore
Link:
https://app.any.run/tasks/629f9767-ee7c-4bd6-9092-47afe9b7f9e7

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
NanoCore
Create hunting rule
Link:
https://www.capesandbox.com/analysis/156228/
Detection(s):
SecuriteInfo.com.Scr.Malcodegdn30.UNOFFICIAL
Create hunting rule

Porcupine.MSIL.Kryptik.AAWQ.100468.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Result
Threat name:
Nanocore
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/781169
Signature
.NET source code contains potential unpacker
Allocates memory in foreign processes
C2 URLs / IPs found in malware configuration
Detected Nanocore Rat
Found malware configuration
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: NanoCore
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses dynamic DNS services
Uses schtasks.exe or at.exe to add and modify task schedules
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected Nanocore RAT
Behaviour
Behavior Graph:
Download SVG
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a6d3661a9cff2af1b242728e8e461985eb08e382124f28b7fb64d49f101b11c7/
Threat name:
ByteCode-MSIL.Backdoor.NanoCore
Create hunting rule
Status:
Malicious
First seen:
2021-05-12 22:57:20 UTC
AV detection:
23 of 29 (79.31%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=u3jwmgu474vpdmscokhi4rqzqxvqry4ccjhsrn73mtkj6ea3chdq._file
Result
Malware family:
nanocore
Create hunting rule
Score:
  10/10
Tags:
family:nanocore keylogger spyware stealer trojan
Link:
https://tria.ge/reports/210513-kwpdtz58ej/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
NanoCore
Malware Config
C2 Extraction:
23.105.131.142:2092
startedhere.ddns.net:2092
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:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Cape
Cape
https://www.capesandbox.com/analysis/156228/

Comments