MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3260e8fc7872ff596b2f284a7731619f46311c301be2b04f0910b5f7887b8fb9. 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 YARA 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 3260e8fc7872ff596b2f284a7731619f46311c301be2b04f0910b5f7887b8fb9
SHA3-384 hash: 7c6810be06c584e26cd68edbb015895a5f75286b9b75712a059dc72bc96634243aa2a96454bc6fbafcfc19544f2a100c
SHA1 hash: c088fa41d7b0884bf30c69f78cfb5a6d376f45df
MD5 hash: 6a7127805cbbdcbecac7502ea62eeae4
humanhash: vegan-north-high-north
File name:RFQ#_item list7282020_PDF.exe
Download: download sample
Signature NanoCore
Create hunting rule
File size:576'000 bytes
First seen:2020-07-29 14:33:37 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'748 x AgentTesla, 19'643 x Formbook, 12'245 x SnakeKeylogger)
ssdeep 12288:EQeNWUDGnLibC3ir7grAYO+xeFmhAwhNkh25F6RyqWIlAa:EQegU+Li2387rYR4m3Nk8F6Ry3y
Threatray 1'100 similar samples on MalwareBazaar
TLSH 68C4C028BAA4C910DFBE1239E1ED4840CFFCA1899577D76A2984A36F1CE3752F50427D
Reporter abuse_ch
Tags:exe NanoCore RAT


Avatar
abuse_ch
Malspam distributing NanoCore:

HELO: hitechtoolkits.com
Sending IP: 95.211.208.25
From: sales <sales@hitechtoolkits.com>
Subject: urgent inquiry for quote
Attachment: RFQ_item list7282020_PDF.gz (contains "RFQ#_item list7282020_PDF.exe")

NanoCore RAT C2:
85.244.29.130:1990

Intelligence

File Origin
# of uploads :
1
# of downloads :
82
Origin country :
n/a
Vendor Threat Intelligence
Detection:
NanoCore
Create hunting rule
Link:
https://www.capesandbox.com/analysis/34994/
Detection(s):
SecuriteInfo.com.Fareit-FXU6A7127805CBB.30513.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
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
Creating a file in the %temp% directory
Launching a process
Deleting a recently created file
Connection attempt
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Enabling autorun with Startup directory
Result
Threat name:
Nanocore
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/402745
Signature
.NET source code contains potential unpacker
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Detected Nanocore Rat
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Malicious sample detected (through community Yara rule)
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: 253713 Sample: RFQ#_item list7282020_PDF.exe Startdate: 30/07/2020 Architecture: WINDOWS Score: 100 46 Found malware configuration 2->46 48 Malicious sample detected (through community Yara rule) 2->48 50 Sigma detected: Scheduled temp file as task from temp location 2->50 52 9 other signatures 2->52 8 RFQ#_item list7282020_PDF.exe 1 2->8         started        11 dhcpmon.exe 1 2->11         started        13 dhcpmon.exe 2->13         started        15 RFQ#_item list7282020_PDF.exe 2->15         started        process3 signatures4 56 Injects a PE file into a foreign processes 8->56 17 RFQ#_item list7282020_PDF.exe 1 12 8->17         started        22 dhcpmon.exe 2 11->22         started        24 dhcpmon.exe 13->24         started        26 RFQ#_item list7282020_PDF.exe 2 15->26         started        process5 dnsIp6 44 85.244.29.130, 1990 MEO-RESIDENCIALPT Portugal 17->44 36 C:\Program Files (x86)\...\dhcpmon.exe, PE32 17->36 dropped 38 C:\Users\user\AppData\Roaming\...\run.dat, Non-ISO 17->38 dropped 40 C:\Users\user\AppData\Local\...\tmpCAA1.tmp, XML 17->40 dropped 42 C:\...\dhcpmon.exe:Zone.Identifier, ASCII 17->42 dropped 54 Hides that the sample has been downloaded from the Internet (zone.identifier) 17->54 28 schtasks.exe 1 17->28         started        30 schtasks.exe 1 17->30         started        file7 signatures8 process9 process10 32 conhost.exe 28->32         started        34 conhost.exe 30->34         started       
Detection:
nanocore
Create hunting rule
Link:
https://mwdb.cert.pl/sample/3260e8fc7872ff596b2f284a7731619f46311c301be2b04f0910b5f7887b8fb9/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2020-07-29 14:35:06 UTC
AV detection:
23 of 29 (79.31%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=gjqor7dyol7vs2zpfbfhomlbt5ddchbqdprlatyjcc27pcd3r64q._file
Verdict:
malicious
Label(s):
nanocorerat
Create hunting rule
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NanoCore
+ 1'090 additional samples on MalwareBazaar
Result
Malware family:
nanocore
Create hunting rule
Score:
  10/10
Tags:
keylogger trojan stealer spyware family:nanocore persistence evasion
Link:
https://tria.ge/reports/200729-4r44ebkt26/
Behaviour
Suspicious use of AdjustPrivilegeToken
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Suspicious behavior: GetForegroundWindowSpam
Drops file in Program Files directory
Suspicious use of SetThreadContext
Checks whether UAC is enabled
Adds Run key to start application
NanoCore
Malware Config
C2 Extraction:
:1990
85.244.29.130:1990
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Farheyt
Score:
0.80
Link:
https://yomi.yoroi.company/submissions/3260e8fc7872ff596b2f284a7731619f46311c301be2b04f0910b5f7887b8fb9

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_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

gz 1431451345bdf552bc41bd1675a0a9db8ad6032c298fdff99a40e3d1fef4841b

NanoCore

Executable exe 3260e8fc7872ff596b2f284a7731619f46311c301be2b04f0910b5f7887b8fb9

(this sample)

  
Dropped by
MD5 ba7efeac3281d528a28052daa9924c16
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/34994/
  
Dropped by
SHA256 1431451345bdf552bc41bd1675a0a9db8ad6032c298fdff99a40e3d1fef4841b

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