MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 36003a145b08aba4b89f9c43f5edf99e600cd280fcd763ba880687ec706a83d2. 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: 11


Intelligence 11 IOCs 1 YARA 11 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 36003a145b08aba4b89f9c43f5edf99e600cd280fcd763ba880687ec706a83d2
SHA3-384 hash: ae6219cf30592a26d3a66244448b8af247c82bba8a5e780df968c9e592699893ff3b4bb0d18563940a63dae8d7b3d6d7
SHA1 hash: 1517f7ee0e8edb47eccc8297d13661b59b1da0bf
MD5 hash: 1e7a9a483a9956c5c5f1700079c8386b
humanhash: fillet-may-social-pennsylvania
File name:eVoucher.pif.exe
Download: download sample
Signature NanoCore
Create hunting rule
File size:871'936 bytes
First seen:2022-03-01 15:26:36 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 24576:FtLf0tzamiRrzKMifei2+u8afMhmUYb4NHTW1AbK4r:FtLf0tzamiRrzK+yutfMbbNaE
TLSH T1190523113748E265C3F887BBE96204462B318D23601AEBD98D98E1DE0D337E159DB76B
Reporter abuse_ch
Tags:exe NanoCore RAT


Avatar
abuse_ch
NanoCore C2:
31.210.20.129:8686

Indicators Of Compromise (IOCs)

Below is a list of indicators of compromise (IOCs) associated with this malware samples.

IOCThreatFox Reference
31.210.20.129:8686 https://threatfox.abuse.ch/ioc/391108/

Intelligence

File Origin
# of uploads :
1
# of downloads :
280
Origin country :
n/a
Vendor Threat Intelligence
Detection:
NanoCore
Create hunting rule
Link:
https://www.capesandbox.com/analysis/245846/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Adding an access-denied ACE
Launching a process
Creating a window
Сreating synchronization primitives
Creating a file in the %AppData% subdirectories
Creating a file in the Program Files subdirectories
Creating a file in the %temp% directory
Creating a file
DNS request
Sending a custom TCP request
Using the Windows Management Instrumentation requests
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a system process
Enabling autorun by creating a file
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
control.exe obfuscated packed replace.exe
Link:
https://www.filescan.io/uploads/621e3b4cb94fb38cb42f8636/reports/26636dcf-eaf4-4fc0-acf7-e04a8e47f2f9/overview
Result
Verdict:
UNKNOWN
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Malware family:
NanoCoreRAT
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/6b36af56-0e52-4534-9a40-b0bed20f811c
Result
Threat name:
Nanocore
Create hunting rule
Detection:
malicious
Classification:
troj.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/948328
Signature
.NET source code contains potential unpacker
.NET source code references suspicious native API functions
Allocates memory in foreign processes
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Contains functionality to hide user accounts
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
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for submitted file
Sigma detected: NanoCore
Sigma detected: Suspicious Add Scheduled Task From User AppData Temp
Sigma detected: Suspicius Schtasks From Env Var Folder
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses dynamic DNS services
Uses schtasks.exe or at.exe to add and modify task schedules
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected Nanocore RAT
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 580825 Sample: eVoucher.pif.exe Startdate: 01/03/2022 Architecture: WINDOWS Score: 100 52 robi54.duckdns.org 2->52 58 Multi AV Scanner detection for domain / URL 2->58 60 Found malware configuration 2->60 62 Malicious sample detected (through community Yara rule) 2->62 64 15 other signatures 2->64 9 eVoucher.pif.exe 1 2->9         started        13 aspnet_regbrowsers.exe 2 2->13         started        15 dhcpmon.exe 2 2->15         started        17 dhcpmon.exe 1 2->17         started        signatures3 process4 file5 50 C:\Users\user\...\eVoucher.pif.exe.log, ASCII 9->50 dropped 70 Writes to foreign memory regions 9->70 72 Allocates memory in foreign processes 9->72 74 Injects a PE file into a foreign processes 9->74 19 aspnet_regbrowsers.exe 1 11 9->19         started        24 AddInProcess32.exe 9->24         started        26 DataSvcUtil.exe 9->26         started        34 5 other processes 9->34 28 conhost.exe 13->28         started        30 conhost.exe 15->30         started        32 conhost.exe 17->32         started        signatures6 process7 dnsIp8 54 robi54.duckdns.org 31.210.20.129, 49775, 49777, 49779 PLUSSERVER-ASN1DE Netherlands 19->54 56 purecry54.duckdns.org 19->56 44 C:\Users\user\AppData\Roaming\...\run.dat, ISO-8859 19->44 dropped 46 C:\Users\user\AppData\Local\...\tmp5F51.tmp, XML 19->46 dropped 48 C:\Program Files (x86)\...\dhcpmon.exe, PE32 19->48 dropped 66 Uses schtasks.exe or at.exe to add and modify task schedules 19->66 68 Hides that the sample has been downloaded from the Internet (zone.identifier) 19->68 36 schtasks.exe 1 19->36         started        38 schtasks.exe 1 19->38         started        file9 signatures10 process11 process12 40 conhost.exe 36->40         started        42 conhost.exe 38->42         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/36003a145b08aba4b89f9c43f5edf99e600cd280fcd763ba880687ec706a83d2/
Threat name:
ByteCode-MSIL.Trojan.KryptikAGen
Create hunting rule
Status:
Malicious
First seen:
2022-03-01 15:27:13 UTC
File Type:
PE (.Net Exe)
Extracted files:
5
AV detection:
22 of 28 (78.57%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=gyadufc3bcv2joe7trb7l3pztzqazuua7tlwhouia2d6y4dkqpja._file
Verdict:
malicious
Label(s):
nanocorerat
Create hunting rule
Result
Malware family:
nanocore
Create hunting rule
Score:
  10/10
Tags:
family:nanocore keylogger persistence spyware stealer suricata trojan
Link:
https://tria.ge/reports/220301-svrdeacafj/
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
NanoCore
suricata: ET MALWARE Possible NanoCore C2 60B
Malware Config
C2 Extraction:
purecry54.duckdns.org:8686
robi54.duckdns.org:8686
Unpacked files
SH256 hash:
36003a145b08aba4b89f9c43f5edf99e600cd280fcd763ba880687ec706a83d2
MD5 hash:
1e7a9a483a9956c5c5f1700079c8386b
SHA1 hash:
1517f7ee0e8edb47eccc8297d13661b59b1da0bf
Link:
https://www.unpac.me/results/9e983859-d7b9-4b2a-8581-b38a18ad1336/
Malware family:
NanoCore
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/36003a145b08/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.38
Link:
https://yomi.yoroi.company/submissions/36003a145b08aba4b89f9c43f5edf99e600cd280fcd763ba880687ec706a83d2

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:malware_Nanocore_strings
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Nanocore in memory
Reference:internal research
Rule name:MALWARE_Win_NanoCore
Create hunting rule
Author:ditekSHen
Description:Detects NanoCore
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_Feb18_1_RID2DF1
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:Nanocore_RAT_Gen_2_RID2D96
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:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
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.

Cape
Cape
https://www.capesandbox.com/analysis/245846/

Comments