MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 31cfc8878052cc5306f6b3a65b3ba4e075c50fdc79fdb278033fe622432da9c0. 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 YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 31cfc8878052cc5306f6b3a65b3ba4e075c50fdc79fdb278033fe622432da9c0
SHA3-384 hash: f5c83afe2df3da774d5c006ebe839bc6e12039bba13277965183873eb9d8bd16e97b377db5e16651e6ac1f14b7689558
SHA1 hash: c54b67e4285b75994584c8b31ec7c23748514e32
MD5 hash: 0d79916a497c3c56854cb499ce7bd8cd
humanhash: yankee-september-crazy-zulu
File name:0d79916a497c3c56854cb499ce7bd8cd.exe
Download: download sample
Signature NanoCore
Create hunting rule
File size:1'403'392 bytes
First seen:2021-05-26 06:00:47 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'742 x AgentTesla, 19'607 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 24576:fSPkLganuWrQ1wjODgYfcKpKGAN0D0oYO5iwkOlopBwXgL1IoAjh:mvoQiSUmk80oiwkXwXgLeoA9
Threatray 1'955 similar samples on MalwareBazaar
TLSH 6755F203A10AD699EC3C6B7DA48E45422B733CFE6142D599BDC2B62B85E1AF1C137347
Reporter abuse_ch
Tags:exe NanoCore RAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
136
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
0d79916a497c3c56854cb499ce7bd8cd.exe
Verdict:
Malicious activity
Analysis date:
2021-05-26 06:07:37 UTC
Tags:
rat nanocore
Link:
https://app.any.run/tasks/4147e756-cc59-4877-92b6-43f25493822d

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
NanoCore
Create hunting rule
Link:
https://www.capesandbox.com/analysis/162217/
Detection(s):
SecuriteInfo.com.MSIL.Kryptik.VFR-1.UNOFFICIAL
Create hunting rule

Result
Verdict:
Clean
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
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.
Result
Threat name:
NanoCore
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/792253
Signature
Allocates memory in foreign processes
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
C2 URLs / IPs found in malware configuration
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
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 domain / URL
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: NanoCore
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses schtasks.exe or at.exe to add and modify task schedules
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected Nanocore RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 424649 Sample: rLlsjic1z0.exe Startdate: 26/05/2021 Architecture: WINDOWS Score: 100 31 wespeaktruthtoman12.sytes.net 2->31 33 wespeaktruthtoman.sytes.net 2->33 41 Multi AV Scanner detection for domain / URL 2->41 43 Found malware configuration 2->43 45 Malicious sample detected (through community Yara rule) 2->45 47 11 other signatures 2->47 8 rLlsjic1z0.exe 7 2->8         started        signatures3 process4 file5 21 C:\Users\user\AppData\Roaming\rEeqRKb.exe, PE32 8->21 dropped 23 C:\Users\user\...\rEeqRKb.exe:Zone.Identifier, ASCII 8->23 dropped 25 C:\Users\user\AppData\Local\Temp\tmpF94.tmp, XML 8->25 dropped 27 C:\Users\user\AppData\...\rLlsjic1z0.exe.log, ASCII 8->27 dropped 49 Uses schtasks.exe or at.exe to add and modify task schedules 8->49 51 Writes to foreign memory regions 8->51 53 Allocates memory in foreign processes 8->53 55 Injects a PE file into a foreign processes 8->55 12 RegSvcs.exe 8 8->12         started        17 schtasks.exe 1 8->17         started        signatures6 process7 dnsIp8 35 wespeaktruthtoman.sytes.net 79.134.225.47, 49708, 49716, 49721 FINK-TELECOM-SERVICESCH Switzerland 12->35 37 wespeaktruthtoman12.sytes.net 12->37 39 192.168.2.1 unknown unknown 12->39 29 C:\Users\user\AppData\Roaming\...\run.dat, ISO-8859 12->29 dropped 57 Hides that the sample has been downloaded from the Internet (zone.identifier) 12->57 19 conhost.exe 17->19         started        file9 signatures10 process11
Detection:
nanocore
Create hunting rule
Link:
https://mwdb.cert.pl/sample/31cfc8878052cc5306f6b3a65b3ba4e075c50fdc79fdb278033fe622432da9c0/
Threat name:
Win32.Trojan.Wacatac
Create hunting rule
Status:
Malicious
First seen:
2021-05-26 02:48:07 UTC
AV detection:
10 of 47 (21.28%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=ghh4rb4aklgfgbxwwotfwo5e4b24kd64ph63e6adh7tceqznvhaa._file
Verdict:
malicious
Label(s):
nanocorerat
Create hunting rule
Similar samples:
0e206f1cf56315c1d4245ca01cac08ebab51decab43760d40e43a754d27da7b6
NanoCore
305bf6557bcc3df14cf33993d14e03fa84a6bd7611a990402fae4522ff098454
NanoCore
4d394ed696ee7fb3d53a7b064c53f2157b28d9f192de912fe311dd284845e4c9
NanoCore
8551c05301b50a17763637cca7f291a6b779c82f16275f734e793f6a0e7e1a17
NanoCore
be86e9fd2d5913526b7cea3bec1ad8c84acea8cab73ea78414e6317565f3079b
NanoCore
cce5d9e4fd5ca9142510f3b21d0a73906171e90a815520985687dde13b6e643d
NanoCore
e11f59ce9dae9fcff7ff4c8d3d119dd663a1918d084f8cda7b30c474cd141642
NanoCore
e29e9d9beb5ce8187decf038cdc0b1d3102b4cfe43715a3b4f934098a943ebed
NanoCore
e9c3fc00ddb08ef196d05b56ce0c83c04381de42e8777e902e3e9c7afe4a9f11
NanoCore
f29b0b35d584de9410f3ffe75e8e4dbc6d90ecbc6f2c4d9382d8faf33e88d80b
NanoCore
+ 1'945 additional samples on MalwareBazaar
Result
Malware family:
nanocore
Create hunting rule
Score:
  10/10
Tags:
family:nanocore keylogger spyware stealer trojan
Link:
https://tria.ge/reports/210526-3mt9egp26a/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
NanoCore
Malware Config
C2 Extraction:
wespeaktruthtoman.sytes.net:5600
wespeaktruthtoman12.sytes.net:5600
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/31cfc8878052cc5306f6b3a65b3ba4e075c50fdc79fdb278033fe622432da9c0

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:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

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

Web download

NanoCore

Executable exe 31cfc8878052cc5306f6b3a65b3ba4e075c50fdc79fdb278033fe622432da9c0

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/1278796/
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/1278794/
Cape
Cape
https://www.capesandbox.com/analysis/162217/

Comments