MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 07f511ce3b6a8fb409c1a05ea3e01a6d92422674224109c8d0889a017122098c. 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: 10


Intelligence 10 IOCs 1 YARA 14 File information Comments

SHA256 hash: 07f511ce3b6a8fb409c1a05ea3e01a6d92422674224109c8d0889a017122098c
SHA3-384 hash: 4f5654767db6df0e042fd39ccecd29a255aa369ec9fdce02a18993f494ab7ca69464d9d9308389601f95fed6916f686b
SHA1 hash: f2910931eed05b20c9d95c03af2a416981fb2ed1
MD5 hash: 5a332393b78184d36b60df23a02cb72c
humanhash: five-alanine-cardinal-beryllium
File name:W3M1PaymentReceipt.exe
Download: download sample
Signature NanoCore
File size:29'624 bytes
First seen:2021-11-09 18:05:54 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'737 x AgentTesla, 19'596 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 768:JAp3wjhQ/bxBR7R0Ly7grMfutBIHb1M4hj:JS3wjmbtt7grM1Sy
Threatray 3'214 similar samples on MalwareBazaar
TLSH T115D28D3847555136DEBE0B3BE5A01E00E339A7837403CB1EAA9D71CCD9D335A5AD12BA
Reporter abuse_ch
Tags:exe NanoCore RAT


Avatar
abuse_ch
NanoCore C2:
185.140.53.3:6746

Indicators Of Compromise (IOCs)


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

IOCThreatFox Reference
185.140.53.3:6746 https://threatfox.abuse.ch/ioc/225729/

Intelligence


File Origin
# of uploads :
1
# of downloads :
207
Origin country :
n/a
Vendor Threat Intelligence
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated overlay packed packed
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.expl.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
C2 URLs / IPs found in malware configuration
Creates an autostart registry key pointing to binary in C:\Windows
Creates autostart registry keys with suspicious names
Detected Nanocore Rat
Drops executables to the windows directory (C:\Windows) and starts them
Drops PE files with benign system names
Executable has a suspicious name (potential lure to open the executable)
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Hides threads from debuggers
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
Sigma detected: NanoCore
Sigma detected: Powershell Defender Exclusion
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
System process connects to network (likely due to code injection or exploit)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses dynamic DNS services
Yara detected AntiVM3
Yara detected Nanocore RAT
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 518666 Sample: W3M1PaymentReceipt.exe Startdate: 09/11/2021 Architecture: WINDOWS Score: 100 64 jamcav.duckdns.org 2->64 74 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->74 76 Found malware configuration 2->76 78 Malicious sample detected (through community Yara rule) 2->78 80 13 other signatures 2->80 8 W3M1PaymentReceipt.exe 18 6 2->8         started        13 svchost.exe 2->13         started        15 svchost.exe 2->15         started        17 2 other processes 2->17 signatures3 process4 dnsIp5 68 cdn.discordapp.com 162.159.135.233, 443, 49709, 49710 CLOUDFLARENETUS United States 8->68 60 C:\Windows\Resources\Themes\...\svchost.exe, PE32 8->60 dropped 62 C:\Windows\...\svchost.exe:Zone.Identifier, ASCII 8->62 dropped 84 Creates autostart registry keys with suspicious names 8->84 86 Creates an autostart registry key pointing to binary in C:\Windows 8->86 88 Adds a directory exclusion to Windows Defender 8->88 90 Drops PE files with benign system names 8->90 19 W3M1PaymentReceipt.exe 8->19         started        24 powershell.exe 25 8->24         started        26 powershell.exe 24 8->26         started        36 2 other processes 8->36 70 162.159.133.233, 443, 49712, 49713 CLOUDFLARENETUS United States 13->70 72 192.168.2.1 unknown unknown 13->72 92 System process connects to network (likely due to code injection or exploit) 13->92 94 Multi AV Scanner detection for dropped file 13->94 96 Hides threads from debuggers 13->96 28 powershell.exe 13->28         started        30 powershell.exe 13->30         started        32 powershell.exe 13->32         started        38 3 other processes 15->38 34 WerFault.exe 17->34         started        file6 signatures7 process8 dnsIp9 66 jamcav.duckdns.org 185.140.53.3, 49711, 49714, 49715 DAVID_CRAIGGG Sweden 19->66 58 C:\Users\user\AppData\Roaming\...\run.dat, data 19->58 dropped 82 Hides that the sample has been downloaded from the Internet (zone.identifier) 19->82 40 conhost.exe 24->40         started        42 conhost.exe 26->42         started        44 conhost.exe 28->44         started        46 conhost.exe 30->46         started        48 conhost.exe 32->48         started        50 conhost.exe 36->50         started        52 conhost.exe 38->52         started        54 conhost.exe 38->54         started        56 conhost.exe 38->56         started        file10 signatures11 process12
Threat name:
ByteCode-MSIL.Backdoor.NanoBot
Status:
Malicious
First seen:
2021-11-09 18:06:07 UTC
AV detection:
14 of 45 (31.11%)
Threat level:
  5/5
Result
Malware family:
nanocore
Score:
  10/10
Tags:
family:nanocore evasion keylogger persistence spyware stealer suricata trojan
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Drops file in Windows directory
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Adds Run key to start application
Checks whether UAC is enabled
Windows security modification
NanoCore
Windows security bypass
suricata: ET MALWARE Possible NanoCore C2 60B
Malware Config
C2 Extraction:
jamcav.duckdns.org:6746
Unpacked files
SH256 hash:
07f511ce3b6a8fb409c1a05ea3e01a6d92422674224109c8d0889a017122098c
MD5 hash:
5a332393b78184d36b60df23a02cb72c
SHA1 hash:
f2910931eed05b20c9d95c03af2a416981fb2ed1
Malware family:
NanoCore
Verdict:
Malicious
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:INDICATOR_SUSPICIOUS_EXE_DiscordURL
Author:ditekSHen
Description:Detects executables Discord URL observed in first stage droppers
Rule name:MALWARE_Win_NanoCore
Author:ditekSHen
Description:Detects NanoCore
Rule name:Nanocore
Author:JPCERT/CC Incident Response Group
Description:detect Nanocore in memory
Reference:internal research
Rule name:nanocore_rat
Author:jeFF0Falltrades
Rule name:Nanocore_RAT_Feb18_1
Author:Florian Roth
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
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:pe_imphash
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash
Rule name:SUSP_PE_Discord_Attachment_Oct21_1
Author:Florian Roth
Description:Detects suspicious executable with reference to a Discord attachment (often used for malware hosting on a legitimate FQDN)
Reference:Internal Research
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.

Comments