MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 e100812a13dcc0b92ee42371dd7b03f674581c41dc3a2c70109acff79333cf30. 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 6 File information Comments 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: e100812a13dcc0b92ee42371dd7b03f674581c41dc3a2c70109acff79333cf30
SHA3-384 hash: 8ceaf4c36a9262d6a450f5a9e7ce99078e58d27d81992ca3fa3adab0254a87f8b8d33e7c14e14e6a0c165683413cc519
SHA1 hash: 44cc6dd5c8c7c22b8a92976cf8c77705437faa00
MD5 hash: b8019a09822153f1fd0081cd3f97e6af
humanhash: yankee-snake-snake-victor
File name:090090000000.exe
Download: download sample
Signature NanoCore
Create hunting rule
File size:380'523 bytes
First seen:2021-04-21 06:01:29 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash ea4e67a31ace1a72683a99b80cf37830 (70 x Formbook, 64 x GuLoader, 54 x Loki)
ssdeep 6144:2YYvG8gQ8TBXxNNp5v4CcXvC3yahm9w9LpEPlXZz7ZiVq8hqMTTlIfxW4Q5hYxc9:uIXPNxeKySXolJXiqETlIJmYxcrOi
Threatray 2'276 similar samples on MalwareBazaar
TLSH 788423751A3BCE73C2B7F1334B2B9622EEC6090188E64993B758A6F2F937593452F441
Reporter abuse_ch
Tags:exe NanoCore RAT


Avatar
abuse_ch
NanoCore C2:
185.222.57.171:4445

Indicators Of Compromise (IOCs)

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

IOCThreatFox Reference
185.222.57.171:4445 https://threatfox.abuse.ch/ioc/9345/

Intelligence

File Origin
# of uploads :
1
# of downloads :
116
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Nanocore
Create hunting rule
Link:
https://www.capesandbox.com/analysis/141779/
Detection(s):
SecuriteInfo.com.Troj.Kryptik-VJ-1.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %temp% directory
Creating a file
Sending a UDP request
Unauthorized injection to a recently created process
Creating a window
Creating a file in the %AppData% subdirectories
Creating a file in the Program Files subdirectories
Launching a process
Deleting a recently created file
Sending a custom TCP request
Using the Windows Management Instrumentation requests
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Enabling autorun by creating a file
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/690422
Signature
.NET source code contains potential unpacker
C2 URLs / IPs found in malware configuration
Contains functionality to prevent local Windows debugging
Detected Nanocore Rat
Detected unpacking (changes PE section rights)
Detected unpacking (creates a PE file in dynamic memory)
Detected unpacking (overwrites its own PE header)
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Machine Learning detection for dropped file
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 dropped file
Multi AV Scanner detection for submitted file
Sigma detected: NanoCore
Sigma detected: Scheduled temp file as task from temp location
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected Nanocore RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 394153 Sample: 090090000000.exe Startdate: 21/04/2021 Architecture: WINDOWS Score: 100 61 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->61 63 Found malware configuration 2->63 65 Malicious sample detected (through community Yara rule) 2->65 67 14 other signatures 2->67 8 090090000000.exe 19 2->8         started        12 dhcpmon.exe 17 2->12         started        14 dhcpmon.exe 17 2->14         started        16 090090000000.exe 17 2->16         started        process3 file4 49 C:\Users\user\AppData\Local\...\ulwfuy.dll, PE32 8->49 dropped 71 Uses schtasks.exe or at.exe to add and modify task schedules 8->71 73 Maps a DLL or memory area into another process 8->73 75 Contains functionality to prevent local Windows debugging 8->75 18 090090000000.exe 1 17 8->18         started        51 C:\Users\user\AppData\Local\...\ulwfuy.dll, PE32 12->51 dropped 23 dhcpmon.exe 3 12->23         started        53 C:\Users\user\AppData\Local\...\ulwfuy.dll, PE32 14->53 dropped 25 dhcpmon.exe 2 14->25         started        55 C:\Users\user\AppData\Local\...\ulwfuy.dll, PE32 16->55 dropped 27 WerFault.exe 23 9 16->27         started        signatures5 process6 dnsIp7 57 185.222.57.171, 4445, 49734, 49738 ROOTLAYERNETNL Netherlands 18->57 37 C:\Program Files (x86)\...\dhcpmon.exe, PE32 18->37 dropped 39 C:\Users\user\AppData\Roaming\...\run.dat, data 18->39 dropped 41 C:\Users\user\AppData\Local\...\tmpF68D.tmp, XML 18->41 dropped 43 C:\...\dhcpmon.exe:Zone.Identifier, ASCII 18->43 dropped 69 Hides that the sample has been downloaded from the Internet (zone.identifier) 18->69 29 schtasks.exe 1 18->29         started        31 schtasks.exe 1 18->31         started        45 C:\Users\user\AppData\...\dhcpmon.exe.log, ASCII 23->45 dropped 59 192.168.2.1 unknown unknown 27->59 47 C:\ProgramData\Microsoft\...\Report.wer, Little-endian 27->47 dropped file8 signatures9 process10 process11 33 conhost.exe 29->33         started        35 conhost.exe 31->35         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/e100812a13dcc0b92ee42371dd7b03f674581c41dc3a2c70109acff79333cf30/
Threat name:
Win32.Backdoor.NanoBot
Create hunting rule
Status:
Malicious
First seen:
2021-04-21 04:58:27 UTC
AV detection:
19 of 29 (65.52%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=4eaickqt3talslxeeny526yd6z2fqhcb3q5cy4aqtlh7peztz4ya._file
Verdict:
malicious
Label(s):
nanocorerat
Create hunting rule
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NanoCore
+ 2'266 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/210421-vwaymw1shx/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Drops file in Program Files directory
Suspicious use of SetThreadContext
Adds Run key to start application
Checks whether UAC is enabled
Loads dropped DLL
NanoCore
Malware Config
C2 Extraction:
185.222.57.171:4445
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.57
Link:
https://yomi.yoroi.company/submissions/e100812a13dcc0b92ee42371dd7b03f674581c41dc3a2c70109acff79333cf30

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: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.

Cape
Cape
https://www.capesandbox.com/analysis/141779/

Comments


Avatar
a̵c̵c̸i̵d̷e̵n̷t̴a̷l̴r̵e̷b̸e̴l̸ commented on 2021-04-21 07:31:10 UTC

============================================================
MBC behaviors list (github.com/accidentalrebel/mbcscan):
============================================================
0) [C0032.001] Data Micro-objective::CRC32::Checksum
1) [C0026.002] Data Micro-objective::XOR::Encode Data
4) [C0045] File System Micro-objective::Copy File
5) [C0046] File System Micro-objective::Create Directory
6) [C0048] File System Micro-objective::Delete Directory
7) [C0047] File System Micro-objective::Delete File
8) [C0049] File System Micro-objective::Get File Attributes
9) [C0051] File System Micro-objective::Read File
10) [C0050] File System Micro-objective::Set File Attributes
11) [C0052] File System Micro-objective::Writes File
12) [E1510] Impact::Clipboard Modification
13) [C0034.001] Operating System Micro-objective::Set Variable::Environment Variable
14) [C0036.004] Operating System Micro-objective::Create Registry Key::Registry
15) [C0036.002] Operating System Micro-objective::Delete Registry Key::Registry
16) [C0036.007] Operating System Micro-objective::Delete Registry Value::Registry
17) [C0036.003] Operating System Micro-objective::Open Registry Key::Registry
18) [C0036.005] Operating System Micro-objective::Query Registry Key::Registry
19) [C0036.006] Operating System Micro-objective::Query Registry Value::Registry
20) [C0036.001] Operating System Micro-objective::Set Registry Key::Registry
21) [C0017] Process Micro-objective::Create Process
22) [C0038] Process Micro-objective::Create Thread
23) [C0018] Process Micro-objective::Terminate Process