MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c5f181c355f5c44bd83b1acfad4d363f3a3d88d719b5c76cbbc0d1c568bb68a0. 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 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: c5f181c355f5c44bd83b1acfad4d363f3a3d88d719b5c76cbbc0d1c568bb68a0
SHA3-384 hash: 736fdca8b8092bd21e7e3697ccf1223a8182f07c6ebd0e43c8f409f3e4886a9ec4a9f545fdbc6f9cd99663e31375c6c9
SHA1 hash: 3b8bcd6a40aa863fa114b300c6f45383fff48922
MD5 hash: 8386b1d415e666a5624ecad85e1444b6
humanhash: happy-three-hotel-lactose
File name:R.F.Q-PMP-100000pcs.vbs
Download: download sample
Signature NanoCore
Create hunting rule
File size:189'596 bytes
First seen:2022-12-02 17:23:11 UTC
Last seen:Never
File type:Visual Basic Script (vbs) vbs
MIME type:text/plain
ssdeep 3072:eXFJliLfuE8ozlADw8auustFmbicHfm3fwOt4MYI2x75nehsqgB3F23st+Zn3F/Z:sliLfudcHO
Threatray 4'878 similar samples on MalwareBazaar
TLSH T1AA049B6163E95108F2F33F14A9B951114F3BBEDAAC72CA4D42CC1AAD57A3940DCB1B36
TrID 66.6% (.TXT) Text - UTF-16 (LE) encoded (2000/1)
33.3% (.MP3) MP3 audio (1000/1)
Reporter abuse_ch
Tags:NanoCore vbs

Intelligence

File Origin
# of uploads :
1
# of downloads :
116
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/341994/
Detection(s):
SecuriteInfo.com.Script.SNH-gen.8672.22724.UNOFFICIAL
Create hunting rule

Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
anti-vm winrm.vbs
Link:
https://www.filescan.io/uploads/638a34b71651015c7bfb4095/reports/45c568da-44f0-4e0f-bd70-19eb62349833/overview
Result
Verdict:
MALICIOUS
Result
Threat name:
Nanocore
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1126711
Signature
.NET source code contains potential unpacker
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Detected Nanocore Rat
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: Scheduled temp file as task from temp location
Snort IDS alert for network traffic
Suspicious powershell command line found
Uses schtasks.exe or at.exe to add and modify task schedules
VBScript performs obfuscated calls to suspicious functions
Writes to foreign memory regions
Wscript starts Powershell (via cmd or directly)
Yara detected Generic Downloader
Yara detected Nanocore RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 759437 Sample: R.F.Q-PMP-100000pcs.vbs Startdate: 02/12/2022 Architecture: WINDOWS Score: 100 57 Snort IDS alert for network traffic 2->57 59 Multi AV Scanner detection for domain / URL 2->59 61 Malicious sample detected (through community Yara rule) 2->61 63 9 other signatures 2->63 9 wscript.exe 1 2->9         started        12 RegAsm.exe 2 2->12         started        14 dhcpmon.exe 2 2->14         started        16 dhcpmon.exe 1 2->16         started        process3 signatures4 69 VBScript performs obfuscated calls to suspicious functions 9->69 71 Suspicious powershell command line found 9->71 73 Wscript starts Powershell (via cmd or directly) 9->73 18 powershell.exe 14 15 9->18         started        22 conhost.exe 12->22         started        24 conhost.exe 14->24         started        26 conhost.exe 16->26         started        process5 dnsIp6 51 4.204.233.44, 49710, 80 LEVEL3US United States 18->51 53 195.178.120.24, 49711, 80 HEXAGLOBE-ASFR unknown 18->53 65 Writes to foreign memory regions 18->65 67 Injects a PE file into a foreign processes 18->67 28 RegAsm.exe 1 14 18->28         started        33 conhost.exe 18->33         started        signatures7 process8 dnsIp9 55 193.47.61.249, 49714, 49715, 49716 TH-AS-APTianhaiInfoTechCN Germany 28->55 45 C:\Users\user\AppData\Roaming\...\run.dat, ISO-8859 28->45 dropped 47 C:\Users\user\AppData\Local\...\tmp5317.tmp, XML 28->47 dropped 49 C:\Program Files (x86)\...\dhcpmon.exe, PE32 28->49 dropped 75 Uses schtasks.exe or at.exe to add and modify task schedules 28->75 77 Hides that the sample has been downloaded from the Internet (zone.identifier) 28->77 35 schtasks.exe 1 28->35         started        37 schtasks.exe 1 28->37         started        39 svchost.exe 28->39         started        file10 signatures11 process12 process13 41 conhost.exe 35->41         started        43 conhost.exe 37->43         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/c5f181c355f5c44bd83b1acfad4d363f3a3d88d719b5c76cbbc0d1c568bb68a0/
Threat name:
Script.Trojan.Minerva
Create hunting rule
Status:
Malicious
First seen:
2022-12-02 10:54:12 UTC
File Type:
Text (VBS)
AV detection:
10 of 40 (25.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=yxyydq2v6xcexwb3dlh22tjwh45d3cgxdg24o3f3ydi4k2f3ncqa._file
Verdict:
malicious
Label(s):
nanocorerat
Create hunting rule
Similar samples:
0b1396805e736275f16550f3ecc5361cfcccc468094b4ea910ded8eaf430a5b3
NanoCore
263565e9f77b5ee48474855d471315dd56d1bcabe4d037fb380d404b3afcd14e
NanoCore
3958c096f9bae8e96033422b4a3a7eaae19b1fbbeb0dec5c131954dd0042d9e9
NanoCore
45272694709263868523b77d0561757378cc2e8aa7d64c7ed21deaacbdf88b5b
NanoCore
7709c1a46eff201524b42caaecba9ce963f7580e77d7b9c32059aaf3acfb248a
NanoCore
862965d573744607a29489905cfc8abdd8f187874d476ef4263eee7e5175630a
NanoCore
9c997bb5941de96a571243b7621bf577514cdc9818eb79b1116601fc31f3a17b
NanoCore
ddb292ac2c57e10703a5358532be2d46e4d5ea94361fd30be3c1e2bfb919621f
NanoCore
+ 4'868 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/221202-vyrjpace5x/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Drops file in Program Files directory
Suspicious use of SetThreadContext
Adds Run key to start application
Checks whether UAC is enabled
Checks computer location settings
Blocklisted process makes network request
NanoCore
Malware Config
C2 Extraction:
193.47.61.249:53965
Dropper Extraction:
http://4.204.233.44/DLL/NoStartUp.ppam
Malware family:
NanoCore
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/c5f181c355f5/report/overview.html
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/c5f181c355f5c44bd83b1acfad4d363f3a3d88d719b5c76cbbc0d1c568bb68a0

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:OBFUS_VBS_Reverse_StartUp
Create hunting rule
Author:SECUINFRA Falcon Team
Description:Detecs reversed StartUp Path. Sometimes used as obfuscation
Rule name:SUSP_VBS_Wscript_Shell
Create hunting rule
Author:SECUINFRA Falcon Team
Description:Detects the definition of 'Wscript.Shell' which is often used by Malware, FPs are possible and commmon

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Malspam

NanoCore

Visual Basic Script (vbs) vbs c5f181c355f5c44bd83b1acfad4d363f3a3d88d719b5c76cbbc0d1c568bb68a0

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/341994/

Comments