MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a8eb775636faf8ab1f7083615f58d722b537467035be2f1e96360b3b700a1931. 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 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a8eb775636faf8ab1f7083615f58d722b537467035be2f1e96360b3b700a1931
SHA3-384 hash: eb58e7ac5b993b111632d39c06ca322f4b2c9016e242e1bf000afc4fd9ac11a2939a50eebe578617d95a3aa5e048d058
SHA1 hash: 9b751c34f71bb40b050dab0592ff45be56a602ad
MD5 hash: 720d088da9cafaad486c347e0d09f696
humanhash: yellow-magazine-autumn-seven
File name:SecuriteInfo.com.Win32.CrypterX-gen.26720
Download: download sample
Signature NanoCore
Create hunting rule
File size:577'536 bytes
First seen:2022-09-07 21:30:59 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'739 x AgentTesla, 19'597 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 12288:48l02b1zzUFFiRU9WnSmzxwTqZfs+0K+:TlfzzUFAKASmyTqY
TLSH T11BC4F1AF1F592A25C27E23F6075815B4C3F0E1CF980AD75E18CAA5EC2B367415D61CA3
TrID 72.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.4% (.EXE) Win64 Executable (generic) (10523/12/4)
6.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.4% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.EXE) OS/2 Executable (generic) (2029/13)
Reporter SecuriteInfoCom
Tags:exe NanoCore

Intelligence

File Origin
# of uploads :
1
# of downloads :
426
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
nanocore
Create hunting rule
ID:
1
File name:
SecuriteInfo.com.Win32.CrypterX-gen.26720
Verdict:
Malicious activity
Analysis date:
2022-09-07 21:31:47 UTC
Tags:
nanocore rat trojan
Link:
https://app.any.run/tasks/e997be6b-d7a5-42bf-9472-0a6daa9425cf

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/308597/
Detection(s):
SecuriteInfo.com.Win32.CrypterX-gen.26720.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
DNS request
Sending a custom TCP request
Creating a window
Running batch commands
Launching a process
Creating a file
Creating a process from a recently created file
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/63190e13e73fb79b7afed2cc/reports/7e898d9f-409d-4ea6-9f37-c6ae18ae129d/overview
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.
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/5e1c1bdf-f88d-4196-84cd-aecafc0df78a
Result
Threat name:
Nanocore, DarkTortilla
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1066778
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Creates multiple autostart registry keys
Detected Nanocore Rat
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 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
Uses ping.exe to check the status of other devices and networks
Uses ping.exe to sleep
Writes to foreign memory regions
Yara detected DarkTortilla Crypter
Yara detected Nanocore RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 699310 Sample: SecuriteInfo.com.Win32.Cryp... Startdate: 07/09/2022 Architecture: WINDOWS Score: 100 63 dera5nano.ddns.net 2->63 77 Snort IDS alert for network traffic 2->77 79 Multi AV Scanner detection for domain / URL 2->79 81 Malicious sample detected (through community Yara rule) 2->81 83 11 other signatures 2->83 9 SecuriteInfo.com.Win32.CrypterX-gen.26720.exe 15 3 2->9         started        14 Bin.exe 14 3 2->14         started        16 Bin.exe 2 2->16         started        18 2 other processes 2->18 signatures3 process4 dnsIp5 71 www.google.com 142.250.185.164, 443, 49704, 49708 GOOGLEUS United States 9->71 61 SecuriteInfo.com.W...X-gen.26720.exe.log, ASCII 9->61 dropped 101 Hides that the sample has been downloaded from the Internet (zone.identifier) 9->101 20 cmd.exe 3 9->20         started        24 cmd.exe 1 9->24         started        73 172.217.168.68, 443, 49707 GOOGLEUS United States 14->73 103 Multi AV Scanner detection for dropped file 14->103 105 Machine Learning detection for dropped file 14->105 107 Writes to foreign memory regions 14->107 26 InstallUtil.exe 14->26         started        109 Injects a PE file into a foreign processes 16->109 29 InstallUtil.exe 16->29         started        31 conhost.exe 18->31         started        33 conhost.exe 18->33         started        file6 signatures7 process8 dnsIp9 53 C:\Users\user\AppData\Local\Bin.exe, PE32 20->53 dropped 55 C:\Users\user\...\Bin.exe:Zone.Identifier, ASCII 20->55 dropped 93 Uses ping.exe to sleep 20->93 35 Bin.exe 20->35         started        39 PING.EXE 1 20->39         started        41 conhost.exe 20->41         started        43 PING.EXE 1 20->43         started        95 Uses ping.exe to check the status of other devices and networks 24->95 45 reg.exe 1 1 24->45         started        47 PING.EXE 1 24->47         started        49 conhost.exe 24->49         started        75 dera5nano.ddns.net 107.182.129.248, 1010, 49741, 49743 META-ASUS Reserved 26->75 57 C:\Users\user\AppData\Roaming\...\run.dat, data 26->57 dropped 59 C:\Users\user\AppData\Roaming\...\dhcpmon.exe, PE32 26->59 dropped 97 Creates multiple autostart registry keys 26->97 99 Hides that the sample has been downloaded from the Internet (zone.identifier) 26->99 file10 signatures11 process12 dnsIp13 65 www.google.com 35->65 85 Writes to foreign memory regions 35->85 87 Hides that the sample has been downloaded from the Internet (zone.identifier) 35->87 89 Injects a PE file into a foreign processes 35->89 51 InstallUtil.exe 35->51         started        67 192.168.2.1 unknown unknown 39->67 91 Creates multiple autostart registry keys 45->91 69 127.0.0.1 unknown unknown 47->69 signatures14 process15
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a8eb775636faf8ab1f7083615f58d722b537467035be2f1e96360b3b700a1931/
Threat name:
ByteCode-MSIL.Backdoor.NanoBot
Create hunting rule
Status:
Malicious
First seen:
2022-09-07 17:53:14 UTC
File Type:
PE (.Net Exe)
Extracted files:
17
AV detection:
13 of 26 (50.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=vdvxovrw7l4kwh3qqnqv6wgxek2tortqgw7c6huwgyftw4akdeyq._file
Verdict:
malicious
Label(s):
nanocorerat
Create hunting rule
Result
Malware family:
nanocore
Create hunting rule
Score:
  10/10
Tags:
family:nanocore keylogger persistence spyware stealer trojan
Link:
https://tria.ge/reports/220908-fwthyadgc7/
Behaviour
Creates scheduled task(s)
Runs ping.exe
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
Loads dropped DLL
Executes dropped EXE
NanoCore
Malware Config
C2 Extraction:
dera5nano.ddns.net:1010
107.182.129.248:1010
Unpacked files
SH256 hash:
a8eb775636faf8ab1f7083615f58d722b537467035be2f1e96360b3b700a1931
MD5 hash:
720d088da9cafaad486c347e0d09f696
SHA1 hash:
9b751c34f71bb40b050dab0592ff45be56a602ad
Link:
https://www.unpac.me/results/6f1bcfeb-2482-4d7e-baca-6ced864b7217/
Malware family:
NanoCore
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/a8eb775636fa/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.35
Link:
https://yomi.yoroi.company/submissions/a8eb775636faf8ab1f7083615f58d722b537467035be2f1e96360b3b700a1931

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:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

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/308597/

Comments