MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 21660565519bf1bf0b97b9cf935ab5e2d94ca790bc181c2ab8d1977d729ff4c7. 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: 21660565519bf1bf0b97b9cf935ab5e2d94ca790bc181c2ab8d1977d729ff4c7
SHA3-384 hash: ddf9ee91e342fb28dd2b96ea5e4842d08b91f8aed60de84258443c7dec73aaf0ea13015c6a4fe5f7bad01f5ee6454734
SHA1 hash: 725c451b7a4821fecb85c33ca72f6badd06b765f
MD5 hash: acea139ec92c227c74767a0981047b15
humanhash: oklahoma-lactose-december-high
File name:SRL2020426_Italy.pdf.exe
Download: download sample
Signature NanoCore
Create hunting rule
File size:493'056 bytes
First seen:2020-08-05 07:59:35 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:cLV6Btpmkcmf76kwsfx1RCFZnNRIAs5xPA1xwoddjzO:uApfcmjffzuF7IAs5lIxw+tzO
Threatray 1'112 similar samples on MalwareBazaar
TLSH 39A401163BE8462FE28F8678A111526383BCC2E798C3F3DF68C451F60A567E94A471D7
Reporter abuse_ch
Tags:exe NanoCore RAT


Avatar
abuse_ch
Malspam distributing NanoCore:

HELO: mxin14.netvision.net.il
Sending IP: 194.90.6.72
From: M.H. Shahin <shabi@gol.com>
Subject: New order PO_SRL2020426
Attachment: SRL2020426_Italy.pdf.exe

NanoCore RAT C2:
vreme.ddns.net:5600 (166.244.30.251)

Intelligence

File Origin
# of uploads :
1
# of downloads :
88
Origin country :
n/a
Vendor Threat Intelligence
Detection:
NanoCore
Create hunting rule
Link:
https://www.capesandbox.com/analysis/39143/
Detection(s):
Win.Trojan.Nanocore-5
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file in the %AppData% subdirectories
DNS request
Connection attempt
Sending a UDP request
Connection attempt to an infection source
Result
Threat name:
Nanocore
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
96 / 100
Link:
https://www.joesandbox.com/analysis/410460
Signature
.NET source code contains potential unpacker
Detected Nanocore Rat
Hides that the sample has been downloaded from the Internet (zone.identifier)
Initial sample is a PE file and has a suspicious name
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Sigma detected: NanoCore
Uses an obfuscated file name to hide its real file extension (double extension)
Uses dynamic DNS services
Yara detected Nanocore RAT
Behaviour
Behavior Graph:
Download SVG
Detection:
nanocore
Create hunting rule
Link:
https://mwdb.cert.pl/sample/21660565519bf1bf0b97b9cf935ab5e2d94ca790bc181c2ab8d1977d729ff4c7/
Threat name:
ByteCode-MSIL.Backdoor.NanoCore
Create hunting rule
Status:
Malicious
First seen:
2020-08-05 01:15:22 UTC
AV detection:
29 of 29 (100.00%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=eftakzkrtpy36c4xxhhzgwvv4lmuzj4qxqmbykvy2glx24u76tdq._file
Verdict:
malicious
Label(s):
nanocorerat
Create hunting rule
Similar samples:
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NanoCore
5d37ea9d96ae208d4df3961643780b97016cf055128483ae287ad86616cbea45
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756fde810887452ab2533283973f2e582df198988bcafde9f20dc85e35f4d5c4
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83b70b20d0cdb13e9c420723ba5f025827d21e0c051c6e64b5553a5c372c3374
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9c62e75f2dc168671bddfe8cad2b102197c10d9039d8917a7637585ff603dbdd
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9fc240db7a0cd883c35e2cbfc6e8dcb2bb3921514dbce65aef46711de4a06a6a
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cede878f4e547d56af974c5aa1afd6dfddbb857ca9d60422c9565a1961e22485
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ddf157853be3dbebba9eea0db9815017a0c7d8dded210a5c291d7b0ccd2fd2be
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e29e9d9beb5ce8187decf038cdc0b1d3102b4cfe43715a3b4f934098a943ebed
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ed6ea055c622adab41b5eba73b4d556c4c843b9e77e21933297ca0ce972ce5c4
NanoCore
+ 1'102 additional samples on MalwareBazaar
Result
Malware family:
nanocore
Create hunting rule
Score:
  10/10
Tags:
family:nanocore
Link:
https://tria.ge/reports/200805-ba26bteppe/
Behaviour
Nanocore family
Malware Config
C2 Extraction:
vreme.ddns.net:5600
185.244.30.251:5600
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/21660565519bf1bf0b97b9cf935ab5e2d94ca790bc181c2ab8d1977d729ff4c7

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

Executable exe 21660565519bf1bf0b97b9cf935ab5e2d94ca790bc181c2ab8d1977d729ff4c7

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/39143/

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