MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c52ddeac61f16fb23ff925617fba081392b7aabe47c82c765513755d38e62cde. 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 1 YARA 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: c52ddeac61f16fb23ff925617fba081392b7aabe47c82c765513755d38e62cde
SHA3-384 hash: fade2c174e5658237c4a80d2855ee19447fa91ab1d7371cba031bd1c16fe86c28ccb550529a2c68f121e72579acc7d57
SHA1 hash: cad461e6d6ef4e2a263fe5ff5ed40b30a5f7e754
MD5 hash: 88993ff07656a72eff50a8e8e495b0ea
humanhash: sweet-helium-two-fanta
File name:PO350KW30021.exe
Download: download sample
Signature NanoCore
Create hunting rule
File size:45'208 bytes
First seen:2021-03-22 12:39:47 UTC
Last seen:2021-03-22 15:10:55 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'748 x AgentTesla, 19'643 x Formbook, 12'245 x SnakeKeylogger)
ssdeep 768:FN45N8UeQZkBEN4tGflvmGflvx/FIwJGun51CSthSR:FN45N8TQZkBE0SqR
TLSH 0D1341E9DAB740EBE5BCF93892DAA10AAB30F933A501955F518203C3C555BB23DD016F
Reporter cocaman
Tags:exe NanoCore signed

Code Signing Certificate

Organisation:aYnBlpAtLeMbcyaiNWKBDzgmSUb
Issuer:aYnBlpAtLeMbcyaiNWKBDzgmSUb
Algorithm:sha256WithRSAEncryption
Valid from:2021-03-21T23:17:55Z
Valid to:2022-03-21T23:17:55Z
Serial number: a1d560ab72735c68b6f820587e5e0c95
Thumbprint Algorithm:SHA256
Thumbprint: a20ae38ef4863e74cb214ad6fdb4e95ab1ecd151dce0f6ad3311740ab298191c
Source:This information was brought to you by ReversingLabs A1000 Malware Analysis Platform

Indicators Of Compromise (IOCs)

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

IOCThreatFox Reference
79.134.225.86:1985 https://threatfox.abuse.ch/ioc/4317/

Intelligence

File Origin
# of uploads :
2
# of downloads :
160
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
PO350KW30021.exe
Verdict:
Malicious activity
Analysis date:
2021-03-22 12:42:31 UTC
Tags:
rat nanocore trojan
Link:
https://app.any.run/tasks/d5333f11-378d-43a0-a0c1-b20adbb86755

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/125912/
Detection(s):
SecuriteInfo.com.Trojan.Siggen12.51203.9061.20368.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
DNS request
Sending an HTTP GET request
Creating a file
Moving a recently created file
Creating a file in the %temp% subdirectories
Creating a process from a recently created file
Creating a process with a hidden window
Launching a service
Deleting a recently created file
Launching a process
Running batch commands
Unauthorized injection to a recently created process
Adding an access-denied ACE
Creating a window
Creating a file in the %AppData% subdirectories
Creating a file in the Program Files subdirectories
Using the Windows Management Instrumentation requests
Sending a UDP request
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Sending a TCP request to an infection source
Adding exclusions to Windows Defender
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.
Malware family:
Generic Malware
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/c071d3b9-e2fa-4e07-a615-2e2f6cbcdf11
Result
Threat name:
Nanocore
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/647760
Signature
Adds a directory exclusion to Windows Defender
Antivirus detection for URL or domain
Binary contains a suspicious time stamp
C2 URLs / IPs found in malware configuration
Contains functionality to hide a thread from the debugger
Detected Nanocore Rat
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Hides threads from debuggers
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: NanoCore
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
Yara detected Nanocore RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 372845 Sample: PO350KW30021.exe Startdate: 22/03/2021 Architecture: WINDOWS Score: 100 71 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->71 73 Found malware configuration 2->73 75 Malicious sample detected (through community Yara rule) 2->75 77 12 other signatures 2->77 7 PO350KW30021.exe 21 11 2->7         started        12 dhcpmon.exe 2->12         started        process3 dnsIp4 63 liverpoolsupporters9.com 172.67.176.78, 49707, 49726, 80 CLOUDFLARENETUS United States 7->63 65 192.168.2.1 unknown unknown 7->65 49 C:\Users\user\AppData\...\gixydq2l.newcfg, XML 7->49 dropped 51 C:\Users\user\AppData\...\AdvancedRun.exe, PE32 7->51 dropped 79 Adds a directory exclusion to Windows Defender 7->79 81 Hides threads from debuggers 7->81 83 Injects a PE file into a foreign processes 7->83 14 PO350KW30021.exe 1 12 7->14         started        19 WerFault.exe 7->19         started        21 AdvancedRun.exe 1 7->21         started        31 2 other processes 7->31 53 C:\Users\user\AppData\...\AdvancedRun.exe, PE32 12->53 dropped 23 cmd.exe 12->23         started        25 powershell.exe 12->25         started        27 AdvancedRun.exe 12->27         started        29 dhcpmon.exe 12->29         started        file5 signatures6 process7 dnsIp8 67 79.134.225.86, 1985, 49718 FINK-TELECOM-SERVICESCH Switzerland 14->67 55 C:\Program Files (x86)\...\dhcpmon.exe, PE32 14->55 dropped 57 C:\Users\user\AppData\Roaming\...\run.dat, Non-ISO 14->57 dropped 59 C:\...\dhcpmon.exe:Zone.Identifier, ASCII 14->59 dropped 69 Hides that the sample has been downloaded from the Internet (zone.identifier) 14->69 61 C:\ProgramData\Microsoft\...\Report.wer, Little-endian 19->61 dropped 33 AdvancedRun.exe 21->33         started        35 AdvancedRun.exe 21->35         started        37 conhost.exe 23->37         started        39 timeout.exe 23->39         started        41 conhost.exe 25->41         started        43 conhost.exe 31->43         started        45 conhost.exe 31->45         started        47 timeout.exe 1 31->47         started        file9 signatures10 process11
Detection:
nanocore
Create hunting rule
Link:
https://mwdb.cert.pl/sample/c52ddeac61f16fb23ff925617fba081392b7aabe47c82c765513755d38e62cde/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-03-22 03:11:51 UTC
File Type:
PE (.Net Exe)
Extracted files:
2
AV detection:
19 of 29 (65.52%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=yuw55ldb6fx3ep7zevqx7oqicojlpkv6i7ecy5svcn2v2ohgftpa._file
Result
Malware family:
nanocore
Create hunting rule
Score:
  10/10
Tags:
family:nanocore evasion keylogger persistence spyware stealer trojan
Link:
https://tria.ge/reports/210322-ynnxbwxcga/
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 Program Files directory
Drops file in Windows directory
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Adds Run key to start application
Checks whether UAC is enabled
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:
79.134.225.86:1985
127.0.0.1:1985
Unpacked files
SH256 hash:
c52ddeac61f16fb23ff925617fba081392b7aabe47c82c765513755d38e62cde
MD5 hash:
88993ff07656a72eff50a8e8e495b0ea
SHA1 hash:
cad461e6d6ef4e2a263fe5ff5ed40b30a5f7e754
Link:
https://www.unpac.me/results/1de7fafd-4e3c-4c6a-8015-1b214290e1d7/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.10
Link:
https://yomi.yoroi.company/submissions/c52ddeac61f16fb23ff925617fba081392b7aabe47c82c765513755d38e62cde

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

rar fcb95c2dcc4b1c0573738b6a7327454441e352bed2553531d27225da4d8db8c8

NanoCore

Executable exe c52ddeac61f16fb23ff925617fba081392b7aabe47c82c765513755d38e62cde

(this sample)

  
Delivery method
Other
  
Dropped by
SHA256 fcb95c2dcc4b1c0573738b6a7327454441e352bed2553531d27225da4d8db8c8
Cape
Cape
https://www.capesandbox.com/analysis/125912/

Comments