MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 06c8996db7925f8eba3f2e8c64b7b80a5d7a896733c9bd479336ed0cd13d19df. 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: 9


Intelligence 9 IOCs YARA 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 06c8996db7925f8eba3f2e8c64b7b80a5d7a896733c9bd479336ed0cd13d19df
SHA3-384 hash: 1a4e8bc972e2c3cca523a07459f47b5b66e93e598aa5d415092f822da5a94a98c81493ba4dbbf8455013e595c7da7713
SHA1 hash: f961ca03698e534654f5d8de279b94eed06f3923
MD5 hash: abd0aa13e734a99a23ee3ecdc468986b
humanhash: solar-fish-sixteen-jupiter
File name:29309957856doc.exe
Download: download sample
Signature NanoCore
Create hunting rule
File size:974'848 bytes
First seen:2020-10-27 12:47:37 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'648 x AgentTesla, 19'452 x Formbook, 12'201 x SnakeKeylogger)
ssdeep 12288:oXJF5/DkZC34pYuh4DhBlAgyYD5u6mU+1jKbJEN459Zc/cFZKZJm79C6:oZFJkYuhmFAg39uFFjKbSi5rcECTm7r
Threatray 1'583 similar samples on MalwareBazaar
TLSH 9A252A527A90D910F16A323BC26A824847F49B502693D337EDFF33AB0E17B7679049D9
Reporter abuse_ch
Tags:exe NanoCore RAT


Avatar
abuse_ch
Malspam distributing NanoCore:

HELO: smtp96.iad3a.emailsrvr.com
Sending IP: 173.203.187.96
From: SPA Auditing Dubai <pj@spaauditing.com>
Subject: RE: TT /STATEMENT OF ACCOUNT
Attachment: 29309957856doc.xls.z (contains "29309957856doc.exe")

Intelligence

File Origin
# of uploads :
1
# of downloads :
127
Origin country :
n/a
Vendor Threat Intelligence
Detection:
NanoCore
Create hunting rule
Link:
https://www.capesandbox.com/analysis/79902/
Detection(s):
SecuriteInfo.com.ArtemisABD0AA13E734.5375.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Creating a file in the %temp% directory
Launching a process
Creating a process with a hidden window
Deleting a recently created file
Unauthorized injection to a recently created process
Creating a file
Creating a file in the %AppData% subdirectories
Creating a file in the Program Files subdirectories
Connection attempt
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Enabling autorun by creating a file
Result
Threat name:
Nanocore
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/513518
Signature
.NET source code contains potential unpacker
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 dropped file
Multi AV Scanner detection for submitted file
Sigma detected: NanoCore
Sigma detected: Scheduled temp file as task from temp location
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM_3
Yara detected Nanocore RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 305874 Sample: 29309957856doc.exe Startdate: 27/10/2020 Architecture: WINDOWS Score: 100 57 Found malware configuration 2->57 59 Malicious sample detected (through community Yara rule) 2->59 61 Multi AV Scanner detection for dropped file 2->61 63 11 other signatures 2->63 8 29309957856doc.exe 7 2->8         started        11 29309957856doc.exe 4 2->11         started        14 dhcpmon.exe 2->14         started        16 dhcpmon.exe 3 2->16         started        process3 file4 51 C:\Users\user\AppData\Roaming\htzCNU.exe, PE32 8->51 dropped 53 C:\Users\user\AppData\Local\...\tmp35DF.tmp, XML 8->53 dropped 18 29309957856doc.exe 1 12 8->18         started        23 schtasks.exe 1 8->23         started        67 Injects a PE file into a foreign processes 11->67 25 schtasks.exe 11->25         started        27 29309957856doc.exe 11->27         started        29 schtasks.exe 14->29         started        31 dhcpmon.exe 14->31         started        signatures5 process6 dnsIp7 55 185.165.153.251, 49694, 49697, 49701 DAVID_CRAIGGG Netherlands 18->55 47 C:\Program Files (x86)\...\dhcpmon.exe, PE32 18->47 dropped 49 C:\Users\user\AppData\Roaming\...\run.dat, ISO-8859 18->49 dropped 65 Hides that the sample has been downloaded from the Internet (zone.identifier) 18->65 33 schtasks.exe 1 18->33         started        35 schtasks.exe 1 18->35         started        37 conhost.exe 23->37         started        39 conhost.exe 25->39         started        41 conhost.exe 29->41         started        file8 signatures9 process10 process11 43 conhost.exe 33->43         started        45 conhost.exe 35->45         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/06c8996db7925f8eba3f2e8c64b7b80a5d7a896733c9bd479336ed0cd13d19df/
Threat name:
ByteCode-MSIL.Trojan.Ymacco
Create hunting rule
Status:
Malicious
First seen:
2020-10-27 10:24:14 UTC
AV detection:
24 of 29 (82.76%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=a3ejs3nxsjpy5or7f2ggjn5ybjoxvclhgpe32r4tg3wqzuj5dhpq._file
Verdict:
malicious
Label(s):
nanocorerat
Create hunting rule
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NanoCore
+ 1'573 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/201027-s5gqg3v6ws/
Behaviour
Creates scheduled task(s)
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
Checks whether UAC is enabled
NanoCore
Malware Config
C2 Extraction:
185.165.153.251:50450
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Nanocore
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/06c8996db7925f8eba3f2e8c64b7b80a5d7a896733c9bd479336ed0cd13d19df

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.

Malspam

NanoCore

z 379050c1cc28bccaa039f23e121cd0fa7939e9bd1268739d2976ee4d650512db

NanoCore

Executable exe 06c8996db7925f8eba3f2e8c64b7b80a5d7a896733c9bd479336ed0cd13d19df

(this sample)

  
Dropped by
MD5 3bb3b0f8466f336abefb43ffbc19f05e
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/79902/
  
Dropped by
SHA256 379050c1cc28bccaa039f23e121cd0fa7939e9bd1268739d2976ee4d650512db

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