MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 aa54381545a2e23e467f23f2074f90c3d669640eb2a1049e5d47f1b9af31845b. 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: 10


Intelligence 10 IOCs YARA 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: aa54381545a2e23e467f23f2074f90c3d669640eb2a1049e5d47f1b9af31845b
SHA3-384 hash: eed6d30fe790d471828321cf5e2181d17e146f0585f4a7e9666309e25d82e704fb003afe994f0fe944bed1fed1e4620c
SHA1 hash: b1ce9421180a6d33a725e4f40ba257f0dc2259e6
MD5 hash: 8c2fe908ff9c5bb26effeef4aa049576
humanhash: uranus-whiskey-helium-beer
File name:Y3gAvT9q.exe
Download: download sample
Signature NanoCore
Create hunting rule
File size:307'712 bytes
First seen:2020-09-23 23:02:22 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'742 x AgentTesla, 19'606 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 6144:WLV6Bta6dtJmakIM5Din2IdzxAnuBlMvBZORkZ:WLV6Btpmkyin2axAIFkZ
Threatray 1'075 similar samples on MalwareBazaar
TLSH 5964BE3637644A1FD28E49F92131530692788ED698F3E3DA1BD475AB6A31EE10D1F1C3
Reporter pmelson
Tags:exe NanoCore

Intelligence

File Origin
# of uploads :
1
# of downloads :
154
Origin country :
n/a
Vendor Threat Intelligence
Detection:
NanoCore
Create hunting rule
Link:
https://www.capesandbox.com/analysis/65061/
Detection(s):
Win.Trojan.Nanocore-5
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Creating a file in the %AppData% subdirectories
Creating a file in the Program Files subdirectories
DNS request
Sending a custom TCP request
Using the Windows Management Instrumentation requests
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Result
Threat name:
Nanocore
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/473851
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Detected Nanocore Rat
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
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
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
Uses dynamic DNS services
Yara detected Nanocore RAT
Behaviour
Behavior Graph:
Download SVG
Detection:
nanocore
Create hunting rule
Link:
https://mwdb.cert.pl/sample/aa54381545a2e23e467f23f2074f90c3d669640eb2a1049e5d47f1b9af31845b/
Threat name:
ByteCode-MSIL.Backdoor.NanoCore
Create hunting rule
Status:
Malicious
First seen:
2020-09-23 23:04:06 UTC
AV detection:
29 of 29 (100.00%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=vjkdqfkfulrd4rt7epzaot4qyplgszaowkqqjhs5i7y3tlzrqrnq._file
Verdict:
malicious
Label(s):
nanocorerat
Create hunting rule
Similar samples:
0d4ae41ded28180ddcc35cdb97f92643d2dbd65d31f155f7d4505aee952baa05
NanoCore
2806c2d9436aebf20ce36487ed517b67fe2899db2b0f8947096b23f343b5ac23
NanoCore
428b0c27a13b633a5bcde725ce2859eb38d943d2437d3652c17ed78176521371
NanoCore
4d394ed696ee7fb3d53a7b064c53f2157b28d9f192de912fe311dd284845e4c9
NanoCore
756fde810887452ab2533283973f2e582df198988bcafde9f20dc85e35f4d5c4
NanoCore
9c62e75f2dc168671bddfe8cad2b102197c10d9039d8917a7637585ff603dbdd
NanoCore
9fc240db7a0cd883c35e2cbfc6e8dcb2bb3921514dbce65aef46711de4a06a6a
NanoCore
bd4da0b1c25bcceb64a71cda90e2b11435c102b67ece118fd89e0c2857ba24dd
NanoCore
e29e9d9beb5ce8187decf038cdc0b1d3102b4cfe43715a3b4f934098a943ebed
NanoCore
f19e8ff99a9037ceaf1e4bb1c3ea78529c755fc6dd0be5f26fd8b7d1269d712b
NanoCore
+ 1'065 additional samples on MalwareBazaar
Result
Malware family:
nanocore
Create hunting rule
Score:
  10/10
Tags:
family:nanocore
Link:
https://tria.ge/reports/200923-nlrqn8e49a/
Behaviour
Nanocore family
Malware Config
C2 Extraction:
kurcinasmrdljiva.ddns.net:6006
127.0.0.1:6006
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Nanocore
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/aa54381545a2e23e467f23f2074f90c3d669640eb2a1049e5d47f1b9af31845b

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.

Web download

NanoCore

Executable exe aa54381545a2e23e467f23f2074f90c3d669640eb2a1049e5d47f1b9af31845b

(this sample)

  
Link
https://www.virustotal.com/gui/file/aa54381545a2e23e467f23f2074f90c3d669640eb2a1049e5d47f1b9af31845b/detection
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/65061/

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