MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4cbac922af3cfaba5fa7a3251bd05337bffd9ed0ada77c55bb4f78a041f4ebf2. 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


Neshta


Vendor detections: 13


Intelligence 13 IOCs YARA 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4cbac922af3cfaba5fa7a3251bd05337bffd9ed0ada77c55bb4f78a041f4ebf2
SHA3-384 hash: 28b719223b78eb290957220b0e816ef1ca7b9489466d437d2797037d9bb81bcb77ae28b3ca44b0a59b940349cc1b9100
SHA1 hash: 090d7476a0beffea8915e6534a947c957c878608
MD5 hash: 4339e52e9b1167955101805581aad0ff
humanhash: solar-speaker-dakota-magnesium
File name:4cbac922af3cfaba5fa7a3251bd05337bffd9ed0ada77c55bb4f78a041f4ebf2
Download: download sample
Signature Neshta
Create hunting rule
File size:186'368 bytes
First seen:2022-12-23 07:27:09 UTC
Last seen:2022-12-23 14:34:32 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 9f4693fc0c511135129493f2161d1e86 (253 x Neshta, 15 x Formbook, 14 x AgentTesla)
ssdeep 3072:sr85CMhybfaX4mZd0+x02dfw5apKyu7dLzLZ+hhJxQAhpcLP/OYl2YNm96a:k9dbSX4B+7KVshjxQipcflpi6a
TLSH T1B7048D52BAD1C432E1730E345D74D6728A3FFD301F21AA6B73A4069E9E306D0AD35A67
TrID 88.9% (.EXE) Win32 Executable Borland Delphi 6 (262638/61)
3.5% (.EXE) Win64 Executable (generic) (10523/12/4)
2.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
1.5% (.EXE) Win32 Executable (generic) (4505/5/1)
1.0% (.MZP) WinArchiver Mountable compressed Archive (3000/1)
Reporter petikvx
Tags:exe Neshta Ransomware

Intelligence

File Origin
# of uploads :
2
# of downloads :
544
Origin country :
FR FR
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
4cbac922af3cfaba5fa7a3251bd05337bffd9ed0ada77c55bb4f78a041f4ebf2
Verdict:
Malicious activity
Analysis date:
2022-12-23 07:25:50 UTC
Tags:
ransomware
Link:
https://app.any.run/tasks/7144ac16-8683-4bb1-9adb-972409ee7980

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
Win.Trojan.Neshuta-1
Create hunting rule

PUA.Win.Packer.Pequake-4
Create hunting rule

Win.Virus.Neshta-7101689-0
Create hunting rule

Win.Ransomware.Rapid-9371249-0
Create hunting rule

Win.Trojan.Jadtre-5
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %temp% subdirectories
Сreating synchronization primitives
Creating a process from a recently created file
Creating a file in the Windows directory
Modifying an executable file
Creating a file
Creating a file in the Program Files subdirectories
Changing a file
Creating a process with a hidden window
DNS request
Running batch commands
Sending an HTTP GET request
Sending a custom TCP request
Searching for the window
Launching a service
Launching a process
Creating a file in the Program Files directory
Network activity
Moving a file to the Program Files subdirectory
Enabling autorun with the shell\open\command registry branches
Creating a file in the mass storage device
Deleting volume shadow copies
Infecting executable files
Encrypting user's files
Enabling autorun by creating a file
Verdict:
No Threat
Threat level:
  2/10
Confidence:
100%
Tags:
evasive fingerprint greyware neshta overlay shell32.dll stealer
Link:
https://www.filescan.io/uploads/63a558845e4c075cba1004d5/reports/3252f979-3116-4cfd-a890-516eee1c206e/overview
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:
TargetCompany Ransomware
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/8e7f9351-c8c1-493e-815e-db01fb4b7a95
Result
Threat name:
Neshta, Targeted Ransomware
Create hunting rule
Detection:
malicious
Classification:
rans.spre.troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1139899
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Antivirus detection for URL or domain
Creates an undocumented autostart registry key
Creates files in the recycle bin to hide itself
Deletes shadow drive data (may be related to ransomware)
Drops executable to a common third party application directory
Drops executables to the windows directory (C:\Windows) and starts them
Drops PE files with a suspicious file extension
Found ransom note / readme
Infects executable files (exe, dll, sys, html)
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
May check the online IP address of the machine
May disable shadow drive data (uses vssadmin)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Opens network shares
Sample is not signed and drops a device driver
Uses bcdedit to modify the Windows boot settings
Writes a notice file (html or txt) to demand a ransom
Yara detected Neshta
Yara detected RansomwareGeneric
Yara detected Targeted Ransomware
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 772629 Sample: PIB42H30FM.exe Startdate: 23/12/2022 Architecture: WINDOWS Score: 100 78 Malicious sample detected (through community Yara rule) 2->78 80 Antivirus detection for URL or domain 2->80 82 Antivirus detection for dropped file 2->82 84 10 other signatures 2->84 9 PIB42H30FM.exe 4 2->9         started        process3 file4 56 C:\Windows\svchost.com, PE32 9->56 dropped 58 C:\Users\user\AppData\Local\...\setup.exe, PE32 9->58 dropped 60 C:\Users\user\AppData\...\PIB42H30FM.exe, PE32 9->60 dropped 62 27 other malicious files 9->62 dropped 98 Creates an undocumented autostart registry key 9->98 100 Drops PE files with a suspicious file extension 9->100 102 Drops executable to a common third party application directory 9->102 104 Infects executable files (exe, dll, sys, html) 9->104 13 PIB42H30FM.exe 9 529 9->13         started        signatures5 process6 dnsIp7 72 192.168.2.1, 135, 274 unknown unknown 13->72 74 192.168.2.2 unknown unknown 13->74 76 3 other IPs or domains 13->76 64 C:\Users\user\AppData\...\FILE RECOVERY.txt, data 13->64 dropped 66 C:\Users\user\AppData\...\FILE RECOVERY.txt, data 13->66 dropped 68 C:\Users\user\AppData\...\FILE RECOVERY.txt, data 13->68 dropped 70 7 other malicious files 13->70 dropped 106 Multi AV Scanner detection for dropped file 13->106 108 Creates files in the recycle bin to hide itself 13->108 110 May check the online IP address of the machine 13->110 112 4 other signatures 13->112 18 svchost.com 13->18         started        22 svchost.com 13->22         started        24 svchost.com 13->24         started        26 svchost.com 13->26         started        file8 signatures9 process10 file11 46 C:\Program Files (x86)\...\OSE.EXE, PE32 18->46 dropped 48 C:\Program Files (x86)\...\Setup.exe, PE32 18->48 dropped 50 C:\Program Files (x86)\...\Oarpmany.exe, PE32 18->50 dropped 54 5 other malicious files 18->54 dropped 86 May disable shadow drive data (uses vssadmin) 18->86 88 Deletes shadow drive data (may be related to ransomware) 18->88 90 Infects executable files (exe, dll, sys, html) 18->90 28 vssadmin.exe 18->28         started        52 C:\Windows\directx.sys, ASCII 22->52 dropped 92 Multi AV Scanner detection for dropped file 22->92 94 Uses bcdedit to modify the Windows boot settings 22->94 96 Sample is not signed and drops a device driver 22->96 30 cmd.exe 22->30         started        32 cmd.exe 24->32         started        34 cmd.exe 26->34         started        signatures12 process13 process14 36 conhost.exe 28->36         started        38 conhost.exe 30->38         started        40 conhost.exe 32->40         started        42 conhost.exe 34->42         started        44 sc.exe 34->44         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/4cbac922af3cfaba5fa7a3251bd05337bffd9ed0ada77c55bb4f78a041f4ebf2/
Threat name:
Win32.Virus.Neshta
Create hunting rule
Status:
Malicious
First seen:
2022-12-22 07:30:00 UTC
File Type:
PE (Exe)
Extracted files:
1
AV detection:
26 of 26 (100.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=js5msivpht5lux5humsrxuctg6773hwqvwtxyvn3j54kaqpu5pza._file
Verdict:
malicious
Result
Malware family:
neshta
Create hunting rule
Score:
  10/10
Tags:
family:neshta evasion persistence ransomware spyware stealer
Link:
https://tria.ge/reports/221223-janmcabc2s/
Behaviour
Interacts with shadow copies
Modifies registry class
Runs ping.exe
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
System policy modification
Enumerates physical storage devices
Drops file in Program Files directory
Drops file in Windows directory
Launches sc.exe
Enumerates connected drives
Looks up external IP address via web service
Checks computer location settings
Loads dropped DLL
Reads user/profile data of web browsers
Executes dropped EXE
Stops running service(s)
Deletes shadow copies
Detect Neshta payload
Modifies system executable filetype association
Neshta
Unpacked files
SH256 hash:
4cbac922af3cfaba5fa7a3251bd05337bffd9ed0ada77c55bb4f78a041f4ebf2
MD5 hash:
4339e52e9b1167955101805581aad0ff
SHA1 hash:
090d7476a0beffea8915e6534a947c957c878608
Detections:
win_neshta_g0
Create hunting rule
win_neshta_auto
Create hunting rule
Link:
https://www.unpac.me/results/6ca42fd5-ebf0-4c81-9abb-c1994d288bf2/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/4cbac922af3c/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/4cbac922af3cfaba5fa7a3251bd05337bffd9ed0ada77c55bb4f78a041f4ebf2

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:cobalt_strike_tmp01925d3f
Create hunting rule
Author:The DFIR Report
Description:files - file ~tmp01925d3f.exe
Reference:https://thedfirreport.com
Rule name:INDICATOR_SUSPICIOUS_GENRansomware
Create hunting rule
Author:ditekSHen
Description:detects command variations typically used by ransomware
Rule name:MALWARE_Win_Neshta
Create hunting rule
Author:ditekSHen
Description:Detects Neshta
Rule name:MAL_Neshta_Generic
Create hunting rule
Author:Florian Roth
Description:Detects Neshta malware
Reference:Internal Research
Rule name:MAL_Neshta_Generic_RID2DC9
Create hunting rule
Author:Florian Roth
Description:Detects Neshta malware
Reference:Internal Research
Rule name:Royal_Ran_V1
Create hunting rule
Author:DigitalPanda
Rule name:win_neshta_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:autogenerated rule brought to you by yara-signator

File information

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

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