MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 72fa36c434fc5353c1e9f45bf93a0102e4493b743508999b5aceea9857a7d987. 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 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 72fa36c434fc5353c1e9f45bf93a0102e4493b743508999b5aceea9857a7d987
SHA3-384 hash: 651167678c2910c59725f3c1f602a6ad78bb5477abf9d92225e307dea6ac457a19f342f06c40272f9038e5f57301f8f3
SHA1 hash: 2e065cf39f297794e5a815ff55c40eb3aa06c8c5
MD5 hash: d080edfc25079e051339bfbc9dcdfeea
humanhash: potato-five-texas-fix
File name:d080edfc25079e051339bfbc9dcdfeea.exe
Download: download sample
Signature NanoCore
Create hunting rule
File size:898'560 bytes
First seen:2020-08-04 06:58:30 UTC
Last seen:2020-08-04 08:20:29 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 507b3b5b1f6a270893e48e06f2f1033f (5 x AgentTesla, 2 x NanoCore, 2 x MassLogger)
ssdeep 12288:TOKeqxgkm/OcuIuQBCzcQFGCiol1TkKUSR3uKIwWdFGOQ2DrgNoklTL7g+uGH8q5:xHGnOMuQqNuWxuQ0DrgOkl8+uq7
Threatray 2'618 similar samples on MalwareBazaar
TLSH B5159E22B29C4833C3631A789DDB6774A937BE103924BD8627F55C4C5F39E8139293A7
Reporter abuse_ch
Tags:exe NanoCore nVpn RAT


Avatar
abuse_ch
NanoCore RAT C2:
ndlovusamkello.hopto.org:3940 (185.140.53.132)

Pointing to nVpn:

% Information related to '185.140.53.0 - 185.140.53.255'

% Abuse contact for '185.140.53.0 - 185.140.53.255' is 'abuse@privacyfirst.sh'

inetnum: 185.140.53.0 - 185.140.53.255
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.
netname: PRIVACYFIRST-EU3
country: EU
admin-c: TPP15-RIPE
tech-c: TPP15-RIPE
org: ORG-TPP6-RIPE
status: ASSIGNED PA
mnt-by: PRIVACYFIRST-MNT
created: 2016-10-17T23:24:00Z
last-modified: 2020-07-28T20:56:03Z
source: RIPE

Intelligence

File Origin
# of uploads :
2
# of downloads :
92
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/38233/
Detection(s):
PUA.Win.Adware.Slugin-6803969-0
Create hunting rule

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

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Launching a process
Creating a file in the %AppData% subdirectories
Creating a process from a recently created file
DNS request
Sending a UDP request
Using the Windows Management Instrumentation requests
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Sending a TCP request to an infection source
Unauthorized injection to a system process
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/408713
Signature
.NET source code contains potential unpacker
Allocates memory in foreign processes
Contains functionality to detect sleep reduction / modifications
Creates files in alternative data streams (ADS)
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)
Drops VBS files to the startup folder
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
Queues an APC in another process (thread injection)
Sigma detected: Drops script at startup location
Sigma detected: NanoCore
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
Writes to foreign memory regions
Yara detected Nanocore RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 256597 Sample: TyRSrOojgV.exe Startdate: 04/08/2020 Architecture: WINDOWS Score: 100 80 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->80 82 Found malware configuration 2->82 84 Malicious sample detected (through community Yara rule) 2->84 86 6 other signatures 2->86 14 TyRSrOojgV.exe 2->14         started        17 wscript.exe 1 2->17         started        process3 signatures4 110 Writes to foreign memory regions 14->110 112 Allocates memory in foreign processes 14->112 114 Queues an APC in another process (thread injection) 14->114 116 Contains functionality to detect sleep reduction / modifications 14->116 19 notepad.exe 5 14->19         started        23 adhjfkflevd.exe 17->23         started        process5 file6 70 C:\Users\user\AppData\...\adhjfkflevd.exe, PE32 19->70 dropped 72 C:\Users\...\adhjfkflevd.exe:Zone.Identifier, ASCII 19->72 dropped 74 C:\Users\user\AppData\Roaming\...\web.vbs, ASCII 19->74 dropped 92 Creates files in alternative data streams (ADS) 19->92 94 Drops VBS files to the startup folder 19->94 25 adhjfkflevd.exe 19->25         started        96 Maps a DLL or memory area into another process 23->96 28 adhjfkflevd.exe 23->28         started        30 adhjfkflevd.exe 3 23->30         started        signatures7 process8 signatures9 98 Detected unpacking (changes PE section rights) 25->98 100 Detected unpacking (creates a PE file in dynamic memory) 25->100 102 Detected unpacking (overwrites its own PE header) 25->102 104 3 other signatures 25->104 32 adhjfkflevd.exe 12 25->32         started        37 adhjfkflevd.exe 25->37         started        39 adhjfkflevd.exe 28->39         started        process10 dnsIp11 76 ndlovusamkello.hopto.org 185.140.53.132, 3940, 49736 DAVID_CRAIGGG Sweden 32->76 68 C:\Users\user\AppData\Roaming\...\run.dat, data 32->68 dropped 88 Hides that the sample has been downloaded from the Internet (zone.identifier) 32->88 90 Maps a DLL or memory area into another process 39->90 41 adhjfkflevd.exe 39->41         started        43 adhjfkflevd.exe 39->43         started        file12 signatures13 process14 process15 45 adhjfkflevd.exe 41->45         started        48 adhjfkflevd.exe 43->48         started        signatures16 108 Maps a DLL or memory area into another process 45->108 50 adhjfkflevd.exe 45->50         started        52 adhjfkflevd.exe 45->52         started        54 adhjfkflevd.exe 48->54         started        56 adhjfkflevd.exe 48->56         started        process17 process18 58 adhjfkflevd.exe 50->58         started        signatures19 106 Maps a DLL or memory area into another process 58->106 61 adhjfkflevd.exe 58->61         started        63 adhjfkflevd.exe 58->63         started        process20 process21 65 adhjfkflevd.exe 61->65         started        signatures22 78 Maps a DLL or memory area into another process 65->78
Detection:
nanocore
Create hunting rule
Link:
https://mwdb.cert.pl/sample/72fa36c434fc5353c1e9f45bf93a0102e4493b743508999b5aceea9857a7d987/
Threat name:
Win32.Infostealer.Fareit
Create hunting rule
Status:
Malicious
First seen:
2020-08-04 07:00:07 UTC
AV detection:
41 of 48 (85.42%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=ol5dnrbu7rjvhqpj6rn7soqbalseso3uguejtg22z3vjqv5h3gdq._file
Verdict:
malicious
Label(s):
nanocorerat
Create hunting rule
hawkeyekeylogger
Create hunting rule
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NanoCore
+ 2'608 additional samples on MalwareBazaar
Result
Malware family:
nanocore
Create hunting rule
Score:
  10/10
Tags:
upx evasion trojan keylogger stealer spyware family:nanocore
Link:
https://tria.ge/reports/200804-a21sdkztsj/
Behaviour
NTFS ADS
Suspicious use of WriteProcessMemory
Suspicious behavior: MapViewOfSection
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of SetThreadContext
Checks whether UAC is enabled
Loads dropped DLL
Drops startup file
Executes dropped EXE
UPX packed file
NanoCore
Malware Config
C2 Extraction:
ndlovusamkello.hopto.org:3940
185.140.53.132:3940
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Tinba
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/72fa36c434fc5353c1e9f45bf93a0102e4493b743508999b5aceea9857a7d987

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.

Web download

NanoCore

Executable exe 72fa36c434fc5353c1e9f45bf93a0102e4493b743508999b5aceea9857a7d987

(this sample)

Cape
Cape
https://www.capesandbox.com/analysis/38233/
  
URLhaus
https://urlhaus.abuse.ch/url/410810/
  
Delivery method
Distributed via web download

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