MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 5a098ce0200bbbbe0da398c577353e6c4838da7bb2bd55d62f032211125ab92a. 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 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 5a098ce0200bbbbe0da398c577353e6c4838da7bb2bd55d62f032211125ab92a
SHA3-384 hash: 176ee433c8f72f297b9da3af171079f4e11a9becbb408787a1d9dfd18dab66324c684fc037399537cc4923e5a4bd6818
SHA1 hash: c31162b6ac69b623c53100a9cc67a10ea66950b0
MD5 hash: 14c073097739c21da037e9b81457ad5e
humanhash: bakerloo-twenty-high-shade
File name:DOC-03082175453465667686557.exe
Download: download sample
Signature NanoCore
Create hunting rule
File size:78'584 bytes
First seen:2021-03-09 11:34:08 UTC
Last seen:2021-03-09 23:01:55 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'657 x AgentTesla, 19'468 x Formbook, 12'206 x SnakeKeylogger)
ssdeep 1536:PRQhqTz+V6ihNi1yLfYO10YO1fYR1zYO10n0tYibP3kJ99:ofYO10YO1fYR1zYO10n0tYibP3kJ99
Threatray 1'729 similar samples on MalwareBazaar
TLSH 09730294745ACCBFD52F897C0E9C77022594541F80A3486AA26E252BBDE310A1FDDCFB
Reporter abuse_ch
Tags:exe NanoCore RAT


Avatar
abuse_ch
Malspam distributing NanoCore:

HELO: slot0.ge-ticaret.com
Sending IP: 203.159.80.130
From: "Ronald Rina" <rrina@smediasys.com>
Reply-To: rrina-smediasys@post.com
Subject: Request For QUOTE (INNOVATION PROJECT)
Attachment: DOC-03082175453465667686557.iso (contains "DOC-03082175453465667686557.exe")

NanoCore RAT C2:
nanocore1.publicvm.com

Intelligence

File Origin
# of uploads :
3
# of downloads :
153
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
DOC-03082175453465667686557.exe
Verdict:
Malicious activity
Analysis date:
2021-03-09 11:35:14 UTC
Tags:
rat nanocore
Link:
https://app.any.run/tasks/d7aec0c8-5bfc-40d1-ac53-d14aa2f7789d

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/123160/
Detection(s):
SecuriteInfo.com.Mal.Generic-S.9608.9226.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
DNS request
Sending an HTTP GET request
Creating a file
Moving a recently created file
Launching a process
Creating a process with a hidden window
Creating a file in the Windows subdirectories
Creating a window
Creating a file in the %temp% subdirectories
Creating a process from a recently created file
Launching a service
Sending a UDP request
Deleting a recently created file
Running batch commands
Adding an access-denied ACE
Creating a file in the %AppData% subdirectories
Connection attempt
Setting a single autorun event
Adding exclusions to Windows Defender
Unauthorized injection to a system process
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:
evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/632643
Signature
Adds a directory exclusion to Windows Defender
Binary contains a suspicious time stamp
Creates an autostart registry key pointing to binary in C:\Windows
Drops executables to the windows directory (C:\Windows) and starts them
Drops PE files with benign system names
Hides threads from debuggers
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: NanoCore
Sigma detected: Suspicious Svchost Process
Sigma detected: System File Execution Location Anomaly
System process connects to network (likely due to code injection or exploit)
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 365291 Sample: DOC-03082175453465667686557.exe Startdate: 09/03/2021 Architecture: WINDOWS Score: 100 73 nanocore1.publicvm.com 2->73 85 Multi AV Scanner detection for submitted file 2->85 87 Sigma detected: NanoCore 2->87 89 Binary contains a suspicious time stamp 2->89 91 3 other signatures 2->91 9 DOC-03082175453465667686557.exe 23 14 2->9         started        14 explorer.exe 2->14         started        16 explorer.exe 2->16         started        18 3 other processes 2->18 signatures3 process4 dnsIp5 83 liverpoolofcfanclub.com 104.21.31.39, 49719, 49720, 49725 CLOUDFLARENETUS United States 9->83 67 C:\Windows\Cursors\...\svchost.exe, PE32 9->67 dropped 69 C:\Windows\...\svchost.exe:Zone.Identifier, ASCII 9->69 dropped 71 C:\Users\user\AppData\...\AdvancedRun.exe, PE32 9->71 dropped 93 Creates an autostart registry key pointing to binary in C:\Windows 9->93 95 Adds a directory exclusion to Windows Defender 9->95 97 Hides threads from debuggers 9->97 99 Drops PE files with benign system names 9->99 20 RegSvcs.exe 9->20         started        24 AdvancedRun.exe 1 9->24         started        26 cmd.exe 9->26         started        35 8 other processes 9->35 101 Drops executables to the windows directory (C:\Windows) and starts them 14->101 28 svchost.exe 14->28         started        31 svchost.exe 16->31         started        33 WerFault.exe 18->33         started        file6 signatures7 process8 dnsIp9 75 nanocore1.publicvm.com 161.129.71.136, 5900 ASN-QUADRANET-GLOBALUS United States 20->75 61 C:\Users\user\AppData\Roaming\...\run.dat, Non-ISO 20->61 dropped 77 192.168.2.1 unknown unknown 24->77 37 AdvancedRun.exe 24->37         started        39 conhost.exe 26->39         started        41 timeout.exe 26->41         started        79 liverpoolofcfanclub.com 28->79 63 C:\Users\user\AppData\...\AdvancedRun.exe, PE32 28->63 dropped 103 System process connects to network (likely due to code injection or exploit) 28->103 43 powershell.exe 28->43         started        45 AdvancedRun.exe 28->45         started        81 liverpoolofcfanclub.com 31->81 65 C:\Users\user\AppData\...\AdvancedRun.exe, PE32 31->65 dropped 105 Multi AV Scanner detection for dropped file 31->105 107 Adds a directory exclusion to Windows Defender 31->107 47 powershell.exe 31->47         started        49 AdvancedRun.exe 31->49         started        51 conhost.exe 35->51         started        53 conhost.exe 35->53         started        file10 signatures11 process12 process13 55 conhost.exe 43->55         started        57 conhost.exe 47->57         started        59 AdvancedRun.exe 49->59         started       
Gathering data
Threat name:
ByteCode-MSIL.Trojan.Fsysna
Create hunting rule
Status:
Malicious
First seen:
2021-03-09 11:04:41 UTC
AV detection:
13 of 28 (46.43%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=lieyzybabo534dndtdcxonj6nredrwt3wk6vlvrpamrbces2xeva._file
Verdict:
malicious
Label(s):
nanocorerat
Create hunting rule
Similar samples:
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NanoCore
2acf6c2398a12dc97ff2ceec4f348ed6338c4aafb2dcfeb24856cf8526d12a9d
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4ab0583ffd51ef40c7531a93f294c16dfbcfaa1daf13835b8bd231c269a780c8
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644a0403a3c8254a3846b8c07aa7fdeb2cfe21aa5630ca3100949869f60ae407
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751b9d20eea57288317d00cfb81935ee3a39e49b5043c69ee4c49e6cac41d9fa
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83a5d6da50195774a35e46a89d8d9854b4282ec5a3fffa02fa0f7c90d274117f
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db591a08743176655e567ddffcbbd79b9e2e31feadc1feb54a0200296a93d53d
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e26e07749118e8284c28e50553c62bdbe327234b801ffdf2eedb8663444aa459
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f3ac633354efc183e1705dd9e042d39b62208735f6f9e83534fb21c9f32b5d70
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f4bf592fde78af7ed0b06166ac8265d7b65a2457b9a61f12c2e3a4fad641ac19
NanoCore
+ 1'719 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/210309-ch6tfgdg7x/
Behaviour
Delays execution with timeout.exe
Modifies system certificate store
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
Loads dropped DLL
Windows security modification
Executes dropped EXE
Nirsoft
Modifies Windows Defender Real-time Protection settings
NanoCore
Turns off Windows Defender SpyNet reporting
Windows security bypass
Malware Config
C2 Extraction:
161.129.71.136:5900
nanocore1.publicvm.com:5900
Unpacked files
SH256 hash:
5a098ce0200bbbbe0da398c577353e6c4838da7bb2bd55d62f032211125ab92a
MD5 hash:
14c073097739c21da037e9b81457ad5e
SHA1 hash:
c31162b6ac69b623c53100a9cc67a10ea66950b0
Link:
https://www.unpac.me/results/8346fec6-78a2-4539-bb8c-da753ffea851/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.00
Link:
https://yomi.yoroi.company/submissions/5a098ce0200bbbbe0da398c577353e6c4838da7bb2bd55d62f032211125ab92a

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:INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFu
Create hunting rule
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time
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

iso 5c9cc3265818b3221ebf207e50802ccd25661c175d04c9b3fc0a55be07b62123

NanoCore

Executable exe 5a098ce0200bbbbe0da398c577353e6c4838da7bb2bd55d62f032211125ab92a

(this sample)

  
Dropped by
MD5 71af37bc2fa1a2cde17fcc6407cb1ce5
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/123160/
  
Dropped by
SHA256 5c9cc3265818b3221ebf207e50802ccd25661c175d04c9b3fc0a55be07b62123

Comments