MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3bcbadf163bd228438e9094d4be5b79639e501e55bcff4c879ec8fe4ccb71703. 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: 3bcbadf163bd228438e9094d4be5b79639e501e55bcff4c879ec8fe4ccb71703
SHA3-384 hash: 1dcebd6286c9612b0adc80ee551e60939f8df439c8ca4b4ec52bd0b9afabbd4d877172d3629e56ad75309fda2e870a5a
SHA1 hash: f3e6785264c175f0e107084fde4aa52e3a564f06
MD5 hash: 0e09d45bb1eff84ca0fa83200874e0d9
humanhash: steak-bravo-mockingbird-monkey
File name:Doc_0309_7302020.exe
Download: download sample
Signature NanoCore
Create hunting rule
File size:793'088 bytes
First seen:2020-07-30 07:43:20 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 9049d2d9e4b4ee0c20616207952aadc3 (6 x AgentTesla, 2 x NanoCore, 2 x Loki)
ssdeep 12288:rmHWniVDj9UfMWyW3P5eizRP6wP1HUzCERbxzfpMJ842cbSLWK8VAev/qC/:rliPUEY5ei97FU/bFpMJ8ubpTVeC/
Threatray 3'277 similar samples on MalwareBazaar
TLSH 64F48C22A2D04833D167173F9C0B5664A83DBF1C2B279A476BE51DC85F39681F43E2A7
Reporter abuse_ch
Tags:exe NanoCore nVpn RAT


Avatar
abuse_ch
Malspam distributing NanoCore:

HELO: inseed.kr
Sending IP: 45.143.222.165
From: (Jaems Baek) <james.baek@inseed.kr>
Subject: Re: PO-PS20-0254
Attachment: Doc_0309_7302020.pdf.zip (contains "Doc_0309_7302020.exe")

NanoCore RAT C2:
wazzy.ddns.net:1716 (79.134.225.75)

Pointing to nVpn:

% Information related to '79.134.225.0 - 79.134.225.127'

% Abuse contact for '79.134.225.0 - 79.134.225.127' is 'abuse@privacyfirst.sh'

inetnum: 79.134.225.0 - 79.134.225.127
netname: PRIVACYFIRST-EU
country: EU
remarks: This prefix is assigned to The PRIVACYFIRST Project, which
remarks: operates infrastructure jointly used by various VPN service
remarks: providers. We have a very strong focus on privacy and freedom.
remarks: In case of abuse, we encourage all international law enforcement
remarks: agencies to get in touch with our abuse contact. Due to the fact
remarks: that we keep no logs of user activities and only share data when
remarks: it is legally required under our jurisdiction, it is very unlikely
remarks: for a demand of user information to be successful. Still, that
remarks: should not deter you from reaching out.
admin-c: TPP15-RIPE
tech-c: TPP15-RIPE
status: ASSIGNED PA
mnt-by: AF15-MNT
org: ORG-TPP6-RIPE
created: 2020-07-14T15:26:02Z
last-modified: 2020-07-14T15:31:06Z
source: RIPE

Intelligence

File Origin
# of uploads :
1
# of downloads :
85
Origin country :
n/a
Vendor Threat Intelligence
Detection:
NanoCore
Create hunting rule
Link:
https://www.capesandbox.com/analysis/35389/
Detection(s):
PUA.Win.Adware.Slugin-6803969-0
Create hunting rule

PUA.Win.Adware.Slugin-6840354-0
Create hunting rule

SecuriteInfo.com.BScope.Trojan.Delpem.12306.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Unauthorized injection to a recently created process
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
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Connection attempt to an infection source
Enabling autorun with Startup directory
Result
Threat name:
Nanocore
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/403342
Signature
.NET source code contains potential unpacker
Contains functionality to detect sleep reduction / modifications
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)
Initial sample is a PE file and has a suspicious name
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
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 dynamic DNS services
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected Keylogger Generic
Yara detected Nanocore RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 253907 Sample: Doc_0309_7302020.exe Startdate: 30/07/2020 Architecture: WINDOWS Score: 100 89 wazzy.ddns.net 2->89 91 g.msn.com 2->91 93 asf-ris-prod-neurope.northeurope.cloudapp.azure.com 2->93 99 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->99 101 Found malware configuration 2->101 103 Malicious sample detected (through community Yara rule) 2->103 105 15 other signatures 2->105 11 Doc_0309_7302020.exe 2->11         started        14 Doc_0309_7302020.exe 2->14         started        16 dhcpmon.exe 2->16         started        18 dhcpmon.exe 2->18         started        signatures3 process4 signatures5 109 Detected unpacking (changes PE section rights) 11->109 111 Detected unpacking (creates a PE file in dynamic memory) 11->111 113 Detected unpacking (overwrites its own PE header) 11->113 115 Contains functionality to detect sleep reduction / modifications 11->115 20 Doc_0309_7302020.exe 1 17 11->20         started        25 Doc_0309_7302020.exe 11->25         started        117 Maps a DLL or memory area into another process 14->117 27 Doc_0309_7302020.exe 14->27         started        29 Doc_0309_7302020.exe 3 14->29         started        31 dhcpmon.exe 16->31         started        33 dhcpmon.exe 3 16->33         started        35 dhcpmon.exe 18->35         started        37 dhcpmon.exe 18->37         started        process6 dnsIp7 95 wazzy.ddns.net 79.134.225.75, 1716, 49739, 49756 FINK-TELECOM-SERVICESCH Switzerland 20->95 79 C:\Program Files (x86)\...\dhcpmon.exe, PE32 20->79 dropped 81 C:\Users\user\AppData\Roaming\...\run.dat, data 20->81 dropped 83 C:\Users\user\AppData\Local\...\tmpA32A.tmp, XML 20->83 dropped 85 C:\...\dhcpmon.exe:Zone.Identifier, ASCII 20->85 dropped 107 Hides that the sample has been downloaded from the Internet (zone.identifier) 20->107 39 schtasks.exe 1 20->39         started        41 schtasks.exe 1 20->41         started        43 Doc_0309_7302020.exe 27->43         started        87 C:\Users\user\...\Doc_0309_7302020.exe.log, ASCII 29->87 dropped 46 dhcpmon.exe 31->46         started        48 dhcpmon.exe 35->48         started        file8 signatures9 process10 signatures11 50 conhost.exe 39->50         started        52 conhost.exe 41->52         started        119 Maps a DLL or memory area into another process 43->119 54 Doc_0309_7302020.exe 43->54         started        56 Doc_0309_7302020.exe 43->56         started        58 dhcpmon.exe 46->58         started        60 dhcpmon.exe 46->60         started        62 dhcpmon.exe 48->62         started        64 dhcpmon.exe 48->64         started        process12 process13 66 Doc_0309_7302020.exe 54->66         started        69 dhcpmon.exe 58->69         started        signatures14 97 Maps a DLL or memory area into another process 66->97 71 Doc_0309_7302020.exe 66->71         started        73 Doc_0309_7302020.exe 66->73         started        75 dhcpmon.exe 69->75         started        77 dhcpmon.exe 69->77         started        process15
Detection:
nanocore
Create hunting rule
Link:
https://mwdb.cert.pl/sample/3bcbadf163bd228438e9094d4be5b79639e501e55bcff4c879ec8fe4ccb71703/
Threat name:
Win32.Trojan.DataStealer
Create hunting rule
Status:
Malicious
First seen:
2020-07-30 07:45:06 UTC
AV detection:
26 of 29 (89.66%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=hpf234ldxuriiohjbfguxznxsy46kapflph7jsdz5sh6jtfxc4bq._file
Verdict:
malicious
Label(s):
nanocorerat
Create hunting rule
hawkeyekeylogger
Create hunting rule
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NanoCore
+ 3'267 additional samples on MalwareBazaar
Result
Malware family:
nanocore
Create hunting rule
Score:
  10/10
Tags:
upx evasion trojan keylogger stealer spyware family:nanocore persistence
Link:
https://tria.ge/reports/200730-j5tcyhnnqe/
Behaviour
Suspicious behavior: GetForegroundWindowSpam
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Drops file in Program Files directory
Suspicious use of SetThreadContext
Checks whether UAC is enabled
Adds Run key to start application
UPX packed file
NanoCore
Malware Config
C2 Extraction:
wazzy.ddns.net:1716
79.134.225.75:1716
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/3bcbadf163bd228438e9094d4be5b79639e501e55bcff4c879ec8fe4ccb71703

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

zip 1b1a2f255af1c1d23ec0d47bcf5120e2fa4672061170ac588758b78a0802cf07

NanoCore

Executable exe 3bcbadf163bd228438e9094d4be5b79639e501e55bcff4c879ec8fe4ccb71703

(this sample)

  
Dropped by
MD5 fb29c181937cda6553bc15da927728d1
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/35389/
  
Dropped by
SHA256 1b1a2f255af1c1d23ec0d47bcf5120e2fa4672061170ac588758b78a0802cf07

Comments