MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f4248f09778780307d68ed068ed5cdcea48ea1c13555bd7bb05ce7f641017833. 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 2 File information Comments 1

SHA256 hash: f4248f09778780307d68ed068ed5cdcea48ea1c13555bd7bb05ce7f641017833
SHA3-384 hash: 745561d184092dbce4824d41941a426544550b99f69e63af872418b08f54248d709f08c33fb085440f2e7f0ddc78ecac
SHA1 hash: 95e8fddfe412626b645a01bfc7dc0cb2d3c8ebfe
MD5 hash: b56a52effc3f70f117e3045c3fa52fe8
humanhash: black-oranges-vermont-winner
File name:b56a52effc3f70f117e3045c3fa52fe8
Download: download sample
Signature NanoCore
File size:37'888 bytes
First seen:2022-05-28 21:03:12 UTC
Last seen:2022-05-28 21:32:55 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 768:rzGh6XY6NLXIXopuvliLRyVPGMMMDMMMKc:eyNDsvliLUeMMMDMMMKc
Threatray 5'138 similar samples on MalwareBazaar
TLSH T1A903098169FD88EBE52C4A36D4B2A00C872CB50BD9DEDA573DCA33054823FD6CE56E15
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)
File icon (PE):PE icon
dhash icon 0484a0adada78404 (1 x NanoCore, 1 x AveMariaRAT, 1 x AgentTesla)
Reporter zbetcheckin
Tags:32 exe NanoCore

Intelligence


File Origin
# of uploads :
2
# of downloads :
541
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
nanocore
ID:
1
File name:
b56a52effc3f70f117e3045c3fa52fe8
Verdict:
Malicious activity
Analysis date:
2022-05-28 21:03:38 UTC
Tags:
rat nanocore trojan

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 window
Сreating synchronization primitives
Running batch commands
Creating a process with a hidden window
Launching a process
Sending an HTTP GET request to an infection source
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
control.exe obfuscated packed vidar wacatac
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
.NET source code contains potential unpacker
Antivirus detection for URL or domain
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 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
Writes to foreign memory regions
Yara detected Nanocore RAT
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 635567 Sample: YtffxZRfb4 Startdate: 29/05/2022 Architecture: WINDOWS Score: 100 54 lovemebygift.ddns.net 2->54 58 Snort IDS alert for network traffic 2->58 60 Multi AV Scanner detection for domain / URL 2->60 62 Found malware configuration 2->62 64 10 other signatures 2->64 8 YtffxZRfb4.exe 16 7 2->8         started        13 Ybtjh.exe 14 3 2->13         started        15 Ybtjh.exe 3 2->15         started        signatures3 process4 dnsIp5 56 2.58.149.2, 49755, 49793, 49796 GBTCLOUDUS Netherlands 8->56 44 C:\Users\user\AppData\Roaming\...\Ybtjh.exe, PE32 8->44 dropped 46 C:\Users\user\...\Ybtjh.exe:Zone.Identifier, ASCII 8->46 dropped 48 C:\Users\user\AppData\...\YtffxZRfb4.exe.log, ASCII 8->48 dropped 68 Writes to foreign memory regions 8->68 70 Injects a PE file into a foreign processes 8->70 17 InstallUtil.exe 6 8->17         started        22 cmd.exe 1 8->22         started        72 Multi AV Scanner detection for dropped file 13->72 74 Machine Learning detection for dropped file 13->74 24 cmd.exe 13->24         started        26 InstallUtil.exe 13->26         started        28 cmd.exe 15->28         started        file6 signatures7 process8 dnsIp9 50 lovemebygift.ddns.net 45.137.22.35, 49783, 49790, 49792 ROOTLAYERNETNL Netherlands 17->50 52 127.0.0.1 unknown unknown 17->52 42 C:\Users\user\AppData\Roaming\...\run.dat, Non-ISO 17->42 dropped 66 Hides that the sample has been downloaded from the Internet (zone.identifier) 17->66 30 conhost.exe 22->30         started        32 timeout.exe 1 22->32         started        34 conhost.exe 24->34         started        36 timeout.exe 24->36         started        38 conhost.exe 28->38         started        40 timeout.exe 28->40         started        file10 signatures11 process12
Gathering data
Threat name:
Win32.Backdoor.NanoBot
Status:
Malicious
First seen:
2022-05-28 00:48:30 UTC
File Type:
PE (.Net Exe)
Extracted files:
8
AV detection:
19 of 26 (73.08%)
Threat level:
  5/5
Result
Malware family:
nanocore
Score:
  10/10
Tags:
family:nanocore keylogger persistence spyware stealer suricata trojan
Behaviour
Delays execution with timeout.exe
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Adds Run key to start application
Checks computer location settings
NanoCore
suricata: ET MALWARE Possible NanoCore C2 60B
Malware Config
C2 Extraction:
lovemebygift.ddns.net:54984
127.0.0.1:54984
Unpacked files
SH256 hash:
f4248f09778780307d68ed068ed5cdcea48ea1c13555bd7bb05ce7f641017833
MD5 hash:
b56a52effc3f70f117e3045c3fa52fe8
SHA1 hash:
95e8fddfe412626b645a01bfc7dc0cb2d3c8ebfe
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:pe_imphash
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash

File information


The table below shows additional information about this malware sample such as delivery method and external references.

Web download

NanoCore

Executable exe f4248f09778780307d68ed068ed5cdcea48ea1c13555bd7bb05ce7f641017833

(this sample)

  
Delivery method
Distributed via web download

Comments



Avatar
zbet commented on 2022-05-28 21:03:17 UTC

url : hxxp://2.58.149.2/puty.exe