MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 fdad2390793ba47d070763ab697572c08f0bb5ec7916c868625f09e8ab789cf4. 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: 12


Intelligence 12 IOCs YARA 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: fdad2390793ba47d070763ab697572c08f0bb5ec7916c868625f09e8ab789cf4
SHA3-384 hash: bfe5054796a9050165073829df1712b7a40d9bd8f5fb235539f7f8181462b84f70dd3998bc0908e000a9c21410dda85b
SHA1 hash: e670f889506684931e36e651c90cf39af5607c90
MD5 hash: 37ed0db1564735f943923670e9879682
humanhash: leopard-iowa-batman-island
File name:37ed0db1564735f943923670e9879682.exe
Download: download sample
Signature NanoCore
Create hunting rule
File size:638'976 bytes
First seen:2021-03-18 06:42:59 UTC
Last seen:2021-03-18 08:35:16 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'655 x AgentTesla, 19'464 x Formbook, 12'205 x SnakeKeylogger)
ssdeep 12288:MVnz41NlWXBUGZm8kUGx69lKv1reEwbGY9BiDAV8sEsZaVDN:yng6BRqU/9k4oYWkV83M2DN
Threatray 2'095 similar samples on MalwareBazaar
TLSH 74D4D0366694BF20E0B5037B5C78455047FAFC069B33C67E68B874DD0AB2BA841B177A
Reporter abuse_ch
Tags:exe NanoCore RAT


Avatar
abuse_ch
NanoCore RAT C2:
gshwjnkiyrgdhavczmlopnbvcdtrjhbcxzuiopweazxbwqmnbf.ydns.eu:1665

Intelligence

File Origin
# of uploads :
2
# of downloads :
177
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
37ed0db1564735f943923670e9879682.exe
Verdict:
Malicious activity
Analysis date:
2021-03-18 06:44:22 UTC
Tags:
rat nanocore
Link:
https://app.any.run/tasks/b1ab1889-a3f9-4367-92da-67ac80b22128

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/125389/
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.586.4729.18657.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a custom TCP request
Creating a window
Sending a UDP request
Result
Verdict:
MALICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Result
Threat name:
Nanocore
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/643964
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)
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
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 signatures2 2 Behavior Graph ID: 370952 Sample: Qmu2Byq784.exe Startdate: 18/03/2021 Architecture: WINDOWS Score: 100 53 Found malware configuration 2->53 55 Malicious sample detected (through community Yara rule) 2->55 57 Multi AV Scanner detection for dropped file 2->57 59 11 other signatures 2->59 8 Qmu2Byq784.exe 3 2->8         started        12 dhcpmon.exe 3 2->12         started        14 dhcpmon.exe 2 2->14         started        16 Qmu2Byq784.exe 2 2->16         started        process3 file4 49 C:\Users\user\AppData\...\Qmu2Byq784.exe.log, ASCII 8->49 dropped 63 Uses schtasks.exe or at.exe to add and modify task schedules 8->63 65 Injects a PE file into a foreign processes 8->65 18 Qmu2Byq784.exe 1 14 8->18         started        23 dhcpmon.exe 2 12->23         started        25 dhcpmon.exe 12->25         started        27 dhcpmon.exe 2 14->27         started        29 dhcpmon.exe 14->29         started        31 Qmu2Byq784.exe 2 16->31         started        signatures5 process6 dnsIp7 51 gshwjnkiyrgdhavczmlopnbvcdtrjhbcxzuiopweazxbwqmnbf.ydns.eu 23.105.131.221, 1665 LEASEWEB-USA-NYC-11US United States 18->51 41 C:\Program Files (x86)\...\dhcpmon.exe, PE32 18->41 dropped 43 C:\Users\user\AppData\Roaming\...\run.dat, Non-ISO 18->43 dropped 45 C:\Users\user\AppData\Local\...\tmpDDBC.tmp, XML 18->45 dropped 47 C:\...\dhcpmon.exe:Zone.Identifier, ASCII 18->47 dropped 61 Hides that the sample has been downloaded from the Internet (zone.identifier) 18->61 33 schtasks.exe 1 18->33         started        35 schtasks.exe 1 18->35         started        file8 signatures9 process10 process11 37 conhost.exe 33->37         started        39 conhost.exe 35->39         started       
Detection:
nanocore
Create hunting rule
Link:
https://mwdb.cert.pl/sample/fdad2390793ba47d070763ab697572c08f0bb5ec7916c868625f09e8ab789cf4/
Threat name:
ByteCode-MSIL.Trojan.Wacatac
Create hunting rule
Status:
Malicious
First seen:
2021-03-18 02:20:24 UTC
AV detection:
13 of 28 (46.43%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=7wwshedzhosh2byhmovws5lsychqxnpmpelmq2dcl4e6rk3ytt2a._file
Verdict:
malicious
Label(s):
nanocorerat
Create hunting rule
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NanoCore
2acf6c2398a12dc97ff2ceec4f348ed6338c4aafb2dcfeb24856cf8526d12a9d
NanoCore
4ab0583ffd51ef40c7531a93f294c16dfbcfaa1daf13835b8bd231c269a780c8
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644a0403a3c8254a3846b8c07aa7fdeb2cfe21aa5630ca3100949869f60ae407
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751b9d20eea57288317d00cfb81935ee3a39e49b5043c69ee4c49e6cac41d9fa
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83a5d6da50195774a35e46a89d8d9854b4282ec5a3fffa02fa0f7c90d274117f
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db591a08743176655e567ddffcbbd79b9e2e31feadc1feb54a0200296a93d53d
NanoCore
e26e07749118e8284c28e50553c62bdbe327234b801ffdf2eedb8663444aa459
NanoCore
f3ac633354efc183e1705dd9e042d39b62208735f6f9e83534fb21c9f32b5d70
NanoCore
fbdbd6b6c6cd7a2b07d771d9969e53689f3601bbf7355ee49138b07511b88df7
NanoCore
+ 2'085 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/210318-kg74rkqnbj/
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:
gshwjnkiyrgdhavczmlopnbvcdtrjhbcxzuiopweazxbwqmnbf.ydns.eu:1665
Unpacked files
SH256 hash:
2b43013edb5706a946f4e523a1a219b31fe2a7e05c48884c048882b3c1327655
MD5 hash:
b7159eb14fe565d4e233604b629bbd8a
SHA1 hash:
64f82c67e6c7cbc078141162a49bffcee3d9ebb9
Link:
https://www.unpac.me/results/a7aad4d8-538a-4395-a39e-4398361a1354/
SH256 hash:
fdad2390793ba47d070763ab697572c08f0bb5ec7916c868625f09e8ab789cf4
MD5 hash:
37ed0db1564735f943923670e9879682
SHA1 hash:
e670f889506684931e36e651c90cf39af5607c90
Link:
https://www.unpac.me/results/a7aad4d8-538a-4395-a39e-4398361a1354/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Kryptik
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/fdad2390793ba47d070763ab697572c08f0bb5ec7916c868625f09e8ab789cf4

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:RSharedStrings
Create hunting rule
Author:Katie Kleemola
Description:identifiers for remote and gmremote
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 fdad2390793ba47d070763ab697572c08f0bb5ec7916c868625f09e8ab789cf4

(this sample)

Cape
Cape
https://www.capesandbox.com/analysis/125389/
  
URLhaus
https://urlhaus.abuse.ch/url/1072822/
  
Delivery method
Distributed via web download

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