MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b8d747db69fac284ccfeab921f8e06b6403763914b776ff518e6d3643ed9056d. 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: 17


Intelligence 17 IOCs YARA 14 File information Comments 1

SHA256 hash: b8d747db69fac284ccfeab921f8e06b6403763914b776ff518e6d3643ed9056d
SHA3-384 hash: cc451eacd8c9394ac483f6771938814739f923d5108318b8b15c102d43c312b27af86f7428cae93f3c9d355774fa5c08
SHA1 hash: f22822dd82e49f633eb136fd5ee717b6d75adf0a
MD5 hash: 0d3ec9b2b95b32cc6c1746330ad5ec5e
humanhash: chicken-colorado-cat-single
File name:0d3ec9b2b95b32cc6c1746330ad5ec5e
Download: download sample
Signature NanoCore
File size:364'154 bytes
First seen:2023-02-10 08:24:54 UTC
Last seen:2023-02-11 02:27:51 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 61259b55b8912888e90f516ca08dc514 (1'059 x Formbook, 741 x AgentTesla, 427 x GuLoader)
ssdeep 6144:tYa6aWhvrWv60yRwUVUpR7wmPsLx/v7v+YPDQ7i+e30uJW2nunCgWCfani:tY4WRWzyRwnRkmIb2kQ7iL0uJFmfX
Threatray 4'977 similar samples on MalwareBazaar
TLSH T167741304BFE5E46ADDD327711D3627175EEE580B2019A39B3B200B5EB4A7712D12D783
TrID 47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
15.9% (.EXE) Win64 Executable (generic) (10523/12/4)
9.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
6.8% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon ffffff1f1fffffff (1 x NanoCore, 1 x AgentTesla)
Reporter zbetcheckin
Tags:32 exe NanoCore

Intelligence


File Origin
# of uploads :
3
# of downloads :
254
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
nanocore
ID:
1
File name:
0d3ec9b2b95b32cc6c1746330ad5ec5e
Verdict:
Malicious activity
Analysis date:
2023-02-10 08:25:17 UTC
Tags:
trojan nanocore rat

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a file in the %temp% directory
Creating a window
Creating a process from a recently created file
Creating a file in the %AppData% subdirectories
Сreating synchronization primitives
Searching for synchronization primitives
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
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Behaviour
MalwareBazaar
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
nemesis overlay packed shell32.dll
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
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Detected Nanocore Rat
Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors)
Hides that the sample has been downloaded from the Internet (zone.identifier)
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: NanoCore
Snort IDS alert for network traffic
Uses dynamic DNS services
Yara detected Nanocore RAT
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 803774 Sample: s4Yz7rxmw4.exe Startdate: 10/02/2023 Architecture: WINDOWS Score: 100 43 Snort IDS alert for network traffic 2->43 45 Multi AV Scanner detection for domain / URL 2->45 47 Malicious sample detected (through community Yara rule) 2->47 49 8 other signatures 2->49 7 s4Yz7rxmw4.exe 19 2->7         started        10 ktpxhdmi.exe 1 2->10         started        12 ktpxhdmi.exe 1 2->12         started        process3 file4 33 C:\Users\user\AppData\Local\Temp\eqjwzt.exe, PE32 7->33 dropped 14 eqjwzt.exe 1 3 7->14         started        18 WerFault.exe 10 10->18         started        20 conhost.exe 10->20         started        22 WerFault.exe 4 10 12->22         started        24 conhost.exe 12->24         started        process5 file6 37 C:\Users\user\AppData\...\ktpxhdmi.exe, PE32 14->37 dropped 53 Multi AV Scanner detection for dropped file 14->53 55 Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors) 14->55 57 Maps a DLL or memory area into another process 14->57 26 eqjwzt.exe 11 14->26         started        31 conhost.exe 14->31         started        signatures7 process8 dnsIp9 39 bouricrat.duckdns.org 45.132.106.37, 49711, 49713, 49722 ON-LINE-DATAServerlocation-NetherlandsDrontenNL Ukraine 26->39 41 192.168.2.1 unknown unknown 26->41 35 C:\Users\user\AppData\Roaming\...\run.dat, Non-ISO 26->35 dropped 51 Hides that the sample has been downloaded from the Internet (zone.identifier) 26->51 file10 signatures11
Threat name:
Win32.Trojan.NanoBot
Status:
Malicious
First seen:
2023-02-10 08:25:08 UTC
File Type:
PE (Exe)
Extracted files:
4
AV detection:
17 of 26 (65.38%)
Threat level:
  5/5
Result
Malware family:
nanocore
Score:
  10/10
Tags:
family:nanocore evasion keylogger persistence spyware stealer trojan
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Adds Run key to start application
Checks whether UAC is enabled
Executes dropped EXE
Loads dropped DLL
NanoCore
Malware Config
C2 Extraction:
bouricrat.duckdns.org:6445
Unpacked files
SH256 hash:
4dbf2bec82307bbf3be4196be3cb2154e226eee77faa12a2ac721523cbbc121b
MD5 hash:
e055e15c177435585aadd61ee4f0b9db
SHA1 hash:
4e9ff8b8a8d4be401a0fe93c1736bd9dacfa2b52
SH256 hash:
b8d747db69fac284ccfeab921f8e06b6403763914b776ff518e6d3643ed9056d
MD5 hash:
0d3ec9b2b95b32cc6c1746330ad5ec5e
SHA1 hash:
f22822dd82e49f633eb136fd5ee717b6d75adf0a
Please note that we are no longer able to provide a coverage score for Virus Total.

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
Author:abuse.ch
Rule name:cobalt_strike_tmp01925d3f
Author:The DFIR Report
Description:files - file ~tmp01925d3f.exe
Reference:https://thedfirreport.com
Rule name:malware_Nanocore_strings
Author:JPCERT/CC Incident Response Group
Description:detect Nanocore in memory
Reference:internal research
Rule name:MALWARE_Win_NanoCore
Author:ditekSHen
Description:Detects NanoCore
Rule name:nanocore_rat
Author:jeFF0Falltrades
Rule name:Nanocore_RAT_Feb18_1
Author:Florian Roth (Nextron Systems)
Description:Detects Nanocore RAT
Reference:Internal Research - T2T
Rule name:Nanocore_RAT_Feb18_1_RID2DF1
Author:Florian Roth
Description:Detects Nanocore RAT
Reference:Internal Research - T2T
Rule name:Nanocore_RAT_Gen_2
Author:Florian Roth (Nextron Systems)
Description:Detetcs the Nanocore RAT
Reference:https://www.sentinelone.com/blogs/teaching-an-old-rat-new-tricks/
Rule name:Nanocore_RAT_Gen_2_RID2D96
Author:Florian Roth
Description:Detetcs the Nanocore RAT
Reference:https://www.sentinelone.com/blogs/teaching-an-old-rat-new-tricks/
Rule name:pe_imphash
Rule name:shellcode
Author:nex
Description:Matched shellcode byte patterns
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash
Rule name:Windows_Trojan_Nanocore_d8c4e3c5
Author:Elastic Security
Rule name:win_nanocore_w0
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 b8d747db69fac284ccfeab921f8e06b6403763914b776ff518e6d3643ed9056d

(this sample)

  
Delivery method
Distributed via web download

Comments



Avatar
zbet commented on 2023-02-10 08:25:07 UTC

url : hxxp://www.ingetic.cl/wp-content/themes/seotheme/neuforn2.1.exe