MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f53725b61d137ea3e8fa69467ed2406c4f73496c92353dc3364cc9035c8ba87d. 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 1 YARA 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: f53725b61d137ea3e8fa69467ed2406c4f73496c92353dc3364cc9035c8ba87d
SHA3-384 hash: ac9ad48461b72270e2e46208110cdbaf9f245bc7fbbb46536aaf5c3de35c7992ed279c75c839ee767b3567606e9939a0
SHA1 hash: 2a9518d807618bc7053721e893ce159d0c366dbe
MD5 hash: ee4ff716d771a175d316b521e5818d8d
humanhash: mango-rugby-equal-potato
File name:Commercial E-invoice.exe
Download: download sample
Signature NanoCore
Create hunting rule
File size:1'089'536 bytes
First seen:2021-03-28 21:25:51 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'663 x AgentTesla, 19'478 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:igmRAi/1XNlRKFfdNDdeC5Dnx3K3bz2JIn/wNr+t0304p9XCiCUnMQzIBx:i+KpNbKNReuDnxM/wNrK0L9SCMp
Threatray 2'023 similar samples on MalwareBazaar
TLSH 6035068C5E89D2CAE1784B7985CD949883F95EF38B51CC7EBDE017DBC160788F906622
Reporter abuse_ch
Tags:exe NanoCore RAT


Avatar
abuse_ch
NanoCore C2:
185.140.53.137:8152

Indicators Of Compromise (IOCs)

Below is a list of indicators of compromise (IOCs) associated with this malware samples.

IOCThreatFox Reference
185.140.53.137:8152 https://threatfox.abuse.ch/ioc/5652/

Intelligence

File Origin
# of uploads :
1
# of downloads :
169
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Commercial E-invoice.exe
Verdict:
Malicious activity
Analysis date:
2021-03-28 21:30:23 UTC
Tags:
rat nanocore
Link:
https://app.any.run/tasks/1ea89212-41ed-4374-a0c4-2e792b7d0710

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/127400/
Result
Verdict:
Malware
Maliciousness:
Result
Verdict:
UNKNOWN
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Malware family:
NanoCoreRAT
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/af73d922-567f-4452-918d-13e0075fb97d
Result
Threat name:
Nanocore
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/656251
Signature
.NET source code contains potential unpacker
C2 URLs / IPs found in malware configuration
Detected Nanocore Rat
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
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
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM3
Yara detected Nanocore RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 377058 Sample: Commercial E-invoice.exe Startdate: 28/03/2021 Architecture: WINDOWS Score: 100 43 cool.gotdns.ch 2->43 47 Found malware configuration 2->47 49 Malicious sample detected (through community Yara rule) 2->49 51 Multi AV Scanner detection for dropped file 2->51 53 11 other signatures 2->53 9 Commercial E-invoice.exe 1 2->9         started        12 Commercial E-invoice.exe 2->12         started        14 dhcpmon.exe 2->14         started        16 dhcpmon.exe 1 2->16         started        signatures3 process4 file5 41 C:\Users\...\Commercial E-invoice.exe.log, ASCII 9->41 dropped 18 Commercial E-invoice.exe 1 12 9->18         started        23 Commercial E-invoice.exe 2 12->23         started        25 dhcpmon.exe 2 14->25         started        process6 dnsIp7 45 cool.gotdns.ch 185.140.53.137, 49734, 49736, 49737 DAVID_CRAIGGG Sweden 18->45 35 C:\Program Files (x86)\...\dhcpmon.exe, PE32 18->35 dropped 37 C:\Users\user\AppData\Roaming\...\run.dat, Non-ISO 18->37 dropped 39 C:\Users\user\AppData\Local\...\tmp7C40.tmp, XML 18->39 dropped 55 Hides that the sample has been downloaded from the Internet (zone.identifier) 18->55 27 schtasks.exe 1 18->27         started        29 schtasks.exe 1 18->29         started        file8 signatures9 process10 process11 31 conhost.exe 27->31         started        33 conhost.exe 29->33         started       
Detection:
nanocore
Create hunting rule
Link:
https://mwdb.cert.pl/sample/f53725b61d137ea3e8fa69467ed2406c4f73496c92353dc3364cc9035c8ba87d/
Threat name:
Win32.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-03-28 21:26:11 UTC
AV detection:
10 of 29 (34.48%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=6u3slnq5cn7kh2h2nfdh5usanrhxgslmsi2t3qzwjteqgxelvb6q._file
Verdict:
malicious
Label(s):
nanocorerat
Create hunting rule
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83a5d6da50195774a35e46a89d8d9854b4282ec5a3fffa02fa0f7c90d274117f
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db591a08743176655e567ddffcbbd79b9e2e31feadc1feb54a0200296a93d53d
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e26e07749118e8284c28e50553c62bdbe327234b801ffdf2eedb8663444aa459
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f3ac633354efc183e1705dd9e042d39b62208735f6f9e83534fb21c9f32b5d70
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fbdbd6b6c6cd7a2b07d771d9969e53689f3601bbf7355ee49138b07511b88df7
NanoCore
+ 2'013 additional samples on MalwareBazaar
Result
Malware family:
nanocore
Create hunting rule
Score:
  10/10
Tags:
family:nanocore evasion keylogger persistence spyware stealer trojan
Link:
https://tria.ge/reports/210328-lvetndwrd2/
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
Suspicious use of SetThreadContext
Adds Run key to start application
Checks whether UAC is enabled
NanoCore
Malware Config
C2 Extraction:
cool.gotdns.ch:8152
Unpacked files
SH256 hash:
d436034270fb2d5380e4fcecc1ee6c821a1701aed96045fa13f597da16be08fb
MD5 hash:
00cbf73d8b9f03417a3a32957ec64ed4
SHA1 hash:
b862eff1cf240a5ad5325fd258892e534484a6e8
Link:
https://www.unpac.me/results/5d8e9140-4b41-448a-8607-90de12914c92/
SH256 hash:
f53725b61d137ea3e8fa69467ed2406c4f73496c92353dc3364cc9035c8ba87d
MD5 hash:
ee4ff716d771a175d316b521e5818d8d
SHA1 hash:
2a9518d807618bc7053721e893ce159d0c366dbe
Link:
https://www.unpac.me/results/5d8e9140-4b41-448a-8607-90de12914c92/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.40
Link:
https://yomi.yoroi.company/submissions/f53725b61d137ea3e8fa69467ed2406c4f73496c92353dc3364cc9035c8ba87d

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
Create hunting rule
Author:jeFF0Falltrades
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.

Cape
Cape
https://www.capesandbox.com/analysis/127400/

Comments