MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 bdf417ea1e842e773dc186d3554f69531adc81c81d6f079bae570ba20138f586. 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: 11


Intelligence 11 IOCs YARA 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: bdf417ea1e842e773dc186d3554f69531adc81c81d6f079bae570ba20138f586
SHA3-384 hash: 13ba829f3e4970ee8a16cdcf8acc438e6f6fd027a1c35e18fe3e37b4e04177542e8bec301049110b78548a8722425428
SHA1 hash: 90648250daef8ffe6556f5653332112bd54eb91d
MD5 hash: edcc289d283831f4cbd7c6e08e840275
humanhash: lemon-michigan-idaho-bravo
File name:Payment Slip.exe
Download: download sample
Signature NanoCore
Create hunting rule
File size:207'872 bytes
First seen:2020-10-09 06:35:45 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'653 x AgentTesla, 19'464 x Formbook, 12'205 x SnakeKeylogger)
ssdeep 6144:sLV6Bta6dtJmakIM5jG9lT9E6CvvHPfI2xu:sLV6BtpmkkGrBfCvPPfIWu
Threatray 1'113 similar samples on MalwareBazaar
TLSH 7414BF567BA88A2FE29F8579611202128779C2E3ADC3F3DE18D420B78F567E50B071D7
Reporter abuse_ch
Tags:exe NanoCore RAT


Avatar
abuse_ch
Malspam distributing NanoCore:

HELO: expressnet1.info
Sending IP: 103.114.218.159
From: info@expressnet1.info
Subject: Payment Confirmation Slip copy $75,....
Attachment: Payment Slip.zip (contains "Payment Slip.exe")

NanoCore RAT C2:
kene321.ddns.net:3231

Intelligence

File Origin
# of uploads :
1
# of downloads :
134
Origin country :
n/a
Vendor Threat Intelligence
Detection:
NanoCore
Create hunting rule
Link:
https://www.capesandbox.com/analysis/69464/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a UDP request
Creating a window
Creating a file in the %AppData% subdirectories
Creating a file in the Program Files subdirectories
Creating a file in the %temp% directory
Launching a process
Deleting a recently created file
DNS request
Connection attempt
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Connection attempt to an infection source
Enabling autorun by creating a file
Result
Threat name:
Nanocore
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/486403
Signature
.NET source code contains potential unpacker
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Detected Nanocore Rat
Executable has a suspicious name (potential lure to open the executable)
Found malware configuration
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 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
Sigma detected: Scheduled temp file as task from temp location
Uses dynamic DNS services
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected Nanocore RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 295662 Sample: Payment Slip.exe Startdate: 09/10/2020 Architecture: WINDOWS Score: 100 42 Found malware configuration 2->42 44 Malicious sample detected (through community Yara rule) 2->44 46 Antivirus detection for dropped file 2->46 48 14 other signatures 2->48 7 Payment Slip.exe 1 14 2->7         started        12 Payment Slip.exe 3 2->12         started        14 dhcpmon.exe 3 2->14         started        16 dhcpmon.exe 2 2->16         started        process3 dnsIp4 38 kene321.ddns.net 88.155.104.83, 3231 LIFECELL-ASUA Ukraine 7->38 40 194.5.97.249, 3231, 49758, 49759 DANILENKODE Netherlands 7->40 26 C:\Program Files (x86)\...\dhcpmon.exe, PE32 7->26 dropped 28 C:\Users\user\AppData\Roaming\...\run.dat, Non-ISO 7->28 dropped 30 C:\Users\user\AppData\Local\...\tmpE578.tmp, XML 7->30 dropped 32 C:\...\dhcpmon.exe:Zone.Identifier, ASCII 7->32 dropped 50 Hides that the sample has been downloaded from the Internet (zone.identifier) 7->50 18 schtasks.exe 1 7->18         started        20 schtasks.exe 1 7->20         started        34 C:\Users\user\...\Payment Slip.exe.log, ASCII 12->34 dropped 36 C:\Users\user\AppData\...\dhcpmon.exe.log, ASCII 14->36 dropped file5 signatures6 process7 process8 22 conhost.exe 18->22         started        24 conhost.exe 20->24         started       
Detection:
nanocore
Create hunting rule
Link:
https://mwdb.cert.pl/sample/bdf417ea1e842e773dc186d3554f69531adc81c81d6f079bae570ba20138f586/
Threat name:
ByteCode-MSIL.Backdoor.NanoCore
Create hunting rule
Status:
Malicious
First seen:
2020-10-08 14:32:54 UTC
AV detection:
28 of 28 (100.00%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=xx2bp2q6qqxhopobq3jvkt3jkmnnzaoidvxqpg5ok4f2eajy6wda._file
Verdict:
malicious
Label(s):
nanocorerat
Create hunting rule
Similar samples:
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NanoCore
4d394ed696ee7fb3d53a7b064c53f2157b28d9f192de912fe311dd284845e4c9
NanoCore
756fde810887452ab2533283973f2e582df198988bcafde9f20dc85e35f4d5c4
NanoCore
9c62e75f2dc168671bddfe8cad2b102197c10d9039d8917a7637585ff603dbdd
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9e08f4bedc659a9e1d7f476cdf1cf63928e09b12cd6b1b2393a16ea2ab7cfe03
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9fc240db7a0cd883c35e2cbfc6e8dcb2bb3921514dbce65aef46711de4a06a6a
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aa54381545a2e23e467f23f2074f90c3d669640eb2a1049e5d47f1b9af31845b
NanoCore
b8f3cbf0a0b70cb4b78ca6c7506b17b63cca1de782a1897dfba2bd8156303283
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bd4da0b1c25bcceb64a71cda90e2b11435c102b67ece118fd89e0c2857ba24dd
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e29e9d9beb5ce8187decf038cdc0b1d3102b4cfe43715a3b4f934098a943ebed
NanoCore
+ 1'103 additional samples on MalwareBazaar
Result
Malware family:
nanocore
Create hunting rule
Score:
  10/10
Tags:
persistence evasion trojan keylogger stealer spyware family:nanocore
Link:
https://tria.ge/reports/201009-ztf8cax4q6/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Drops file in Program Files directory
Adds Run key to start application
Checks whether UAC is enabled
NanoCore
Malware Config
C2 Extraction:
kene321.ddns.net:3231
194.5.97.249:3231
Unpacked files
SH256 hash:
bdf417ea1e842e773dc186d3554f69531adc81c81d6f079bae570ba20138f586
MD5 hash:
edcc289d283831f4cbd7c6e08e840275
SHA1 hash:
90648250daef8ffe6556f5653332112bd54eb91d
Detections:
win_nanocore_w0
Create hunting rule
Link:
https://www.unpac.me/results/e60bced5-b65d-4287-8438-8be76df2928b/
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/bdf417ea1e842e773dc186d3554f69531adc81c81d6f079bae570ba20138f586

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 9f13cf27020a8a93b1080cc47bc991fd848fde4736a0f776556eff6c1f68f5e7

NanoCore

Executable exe bdf417ea1e842e773dc186d3554f69531adc81c81d6f079bae570ba20138f586

(this sample)

  
Dropped by
MD5 27c452534617dc2cd8c4189afdb0575f
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/69464/
  
Dropped by
SHA256 9f13cf27020a8a93b1080cc47bc991fd848fde4736a0f776556eff6c1f68f5e7

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