MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 2491121455a502cad9422ca91297c6fb89acb84ef8c26cc1a8bcebf694f9f5ba. 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: 14


Intelligence 14 IOCs YARA 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 2491121455a502cad9422ca91297c6fb89acb84ef8c26cc1a8bcebf694f9f5ba
SHA3-384 hash: 5b8ccfc7b4a00a98fd646a4e553de7d7f4d18802739bce12f83703bd6b20fcef2630c58bf1895a9579a731229dfbe28c
SHA1 hash: 96c0c98dcce84e3bbec643083ce675664173bfd2
MD5 hash: 54c2b90fd9364cd39cecff8ab112b825
humanhash: minnesota-oranges-fillet-comet
File name:2491121455a502cad9422ca91297c6fb89acb84ef8c26cc1a8bcebf694f9f5ba
Download: download sample
Signature Neshta
Create hunting rule
File size:99'328 bytes
First seen:2022-10-12 09:57:04 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 9f4693fc0c511135129493f2161d1e86 (250 x Neshta, 15 x Formbook, 14 x AgentTesla)
ssdeep 1536:JxqjQ+P04wsmJCGf0sKkr0EU5NeRBl5PT/rx1mzwRMSTdLpJUM:sr85CG07QRrmzwR5Jx
Threatray 349 similar samples on MalwareBazaar
TLSH T1CFA3C106F0E18472C9310EF85C39971ACE7F7620287815A7AF790D8DADE92D2DB1D35A
TrID 92.2% (.EXE) Win32 Executable Borland Delphi 6 (262638/61)
2.3% (.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)
0.7% (.EXE) Win16/32 Executable Delphi generic (2072/23)
Reporter petikvx
Tags:Neshta

Intelligence

File Origin
# of uploads :
1
# of downloads :
180
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/319299/
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.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
Launching a service
Searching for synchronization primitives
Creating a file
Launching cmd.exe command interpreter
Creating a process with a hidden window
Changing a file
Creating a file in the Program Files subdirectories
Launching the process to change network settings
Replacing executable files
Moving a file to the Program Files subdirectory
Launching the process to change the firewall settings
Launching a process
Creating a window
Enabling autorun with the shell\open\command registry branches
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Creating a file in the mass storage device
Deleting volume shadow copies
Preventing system recovery
Enabling autorun by creating a file
Encrypting user's files
Infecting executable files
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
neshta overlay packed phobos ransomware shell32.dll virus windows winlock
Link:
https://www.filescan.io/uploads/63468fac0d2bcf0ff9a2755f/reports/49ec0a79-98f8-4833-b4c8-1ba83740e606/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:
Phobos Ransomware
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/01e1a857-bc91-4e03-bc96-f77b64200390
Result
Threat name:
Neshta, Phobos
Create hunting rule
Detection:
malicious
Classification:
rans.spre.adwa.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1089419
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Creates an undocumented autostart registry key
Creates files in the recycle bin to hide itself
Creates files inside the volume driver (system volume information)
Deletes shadow drive data (may be related to ransomware)
Deletes the backup plan of Windows
Drops executable to a common third party application directory
Drops executables to the windows directory (C:\Windows) and starts them
Drops PE files to the startup folder
Drops PE files with a suspicious file extension
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 disable shadow drive data (uses vssadmin)
Modifies the windows firewall
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Delete shadow copy via WMIC
Uses bcdedit to modify the Windows boot settings
Uses netsh to modify the Windows network and firewall settings
Yara detected Neshta
Yara detected Phobos
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 722016 Sample: tENI7wiXbp.exe Startdate: 13/10/2022 Architecture: WINDOWS Score: 100 70 Malicious sample detected (through community Yara rule) 2->70 72 Antivirus detection for dropped file 2->72 74 Antivirus / Scanner detection for submitted sample 2->74 76 9 other signatures 2->76 8 tENI7wiXbp.exe 4 2->8         started        12 svchost.com 2->12         started        14 wbengine.exe 2->14         started        16 5 other processes 2->16 process3 file4 60 C:\Windows\svchost.com, PE32 8->60 dropped 62 C:\Users\user\AppData\...\tENI7wiXbp.exe, PE32 8->62 dropped 64 C:\ProgramData\...\vcredist_x86.exe, PE32 8->64 dropped 68 9 other malicious files 8->68 dropped 86 Creates an undocumented autostart registry key 8->86 88 Drops PE files with a suspicious file extension 8->88 90 Drops executable to a common third party application directory 8->90 92 Infects executable files (exe, dll, sys, html) 8->92 18 tENI7wiXbp.exe 1 95 8->18         started        66 C:\Users\user\Downloads\ChromeSetup.exe, PE32 12->66 dropped 94 Antivirus detection for dropped file 12->94 96 Machine Learning detection for dropped file 12->96 22 tENI7wiXbp.exe 12->22         started        98 Creates files inside the volume driver (system volume information) 14->98 24 tENI7wiXbp.exe 16->24         started        26 tENI7wiXbp.exe 16->26         started        28 tENI7wiXbp.exe 16->28         started        signatures5 process6 file7 56 C:\ProgramData\Microsoft\...\tENI7wiXbp.exe, PE32 18->56 dropped 58 desktop.ini.id[E78...echmail.info].Elbie, data 18->58 dropped 78 Antivirus detection for dropped file 18->78 80 Creates files in the recycle bin to hide itself 18->80 82 Machine Learning detection for dropped file 18->82 84 2 other signatures 18->84 30 cmd.exe 1 18->30         started        33 tENI7wiXbp.exe 2 4 18->33         started        36 cmd.exe 18->36         started        signatures8 process9 file10 100 May disable shadow drive data (uses vssadmin) 30->100 102 Deletes shadow drive data (may be related to ransomware) 30->102 104 Uses netsh to modify the Windows network and firewall settings 30->104 106 3 other signatures 30->106 38 conhost.exe 30->38         started        40 WMIC.exe 1 30->40         started        42 vssadmin.exe 1 30->42         started        50 3 other processes 30->50 52 C:\Users\user\AppData\...\tENI7wiXbp.exe, PE32 33->52 dropped 54 C:\Users\user\AppData\Local\tENI7wiXbp.exe, PE32 33->54 dropped 44 netsh.exe 3 36->44         started        46 netsh.exe 3 36->46         started        48 conhost.exe 36->48         started        signatures11 process12
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/2491121455a502cad9422ca91297c6fb89acb84ef8c26cc1a8bcebf694f9f5ba/
Threat name:
Win32.Virus.Neshta
Create hunting rule
Status:
Malicious
First seen:
2022-10-12 06:30:48 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=esirefcvuubmvwkcfsurff6g7oe2zoco7dbgzqnixtv7nfhz6w5a._file
Verdict:
malicious
Similar samples:
19c9f9cbfe761001bd796973fb4f72e35175e477b7d5677b2e15ec7d223e5834
Neshta
2cf1affaddac715171d5be89d0c2bfaa3470608efdc12940967fc22fcffde54f
Neshta
6eae5f256537af00c1f53ee711d0bdd9ff1e9ccf771234f74c9fc58bfb63c8fa
Neshta
8c7068ecf9168d899f1e67971f0f20b590ece3c4e60d45bc0a90100eb111868a
Neshta
aae66e4930de3e86e7a4095dbba08680278f96f570a0d116e4616c12492a3073
Neshta
cd6a8e6b17a1ecb5aafb24ef4f7ec0ba0be44508ea10dbde551e0037220571f8
Neshta
ce87832b753df5480849c61df4e05bfd2bfbd72af88ad52093a54555f3d96f0e
Neshta
+ 339 additional samples on MalwareBazaar
Result
Malware family:
phobos
Create hunting rule
Score:
  10/10
Tags:
family:neshta family:phobos evasion persistence ransomware spyware stealer
Link:
https://tria.ge/reports/221012-lzg7zadbh7/
Behaviour
Interacts with shadow copies
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Drops file in Program Files directory
Drops file in Windows directory
Adds Run key to start application
Drops desktop.ini file(s)
Checks computer location settings
Drops startup file
Loads dropped DLL
Reads user/profile data of web browsers
Deletes backup catalog
Executes dropped EXE
Modifies Windows Firewall
Deletes shadow copies
Modifies boot configuration data using bcdedit
Detect Neshta payload
Modifies system executable filetype association
Neshta
Phobos
Suspicious use of NtCreateUserProcessOtherParentProcess
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/2a183cbe-31b7-4b88-a34c-72d27c37fb01
Unpacked files
SH256 hash:
2491121455a502cad9422ca91297c6fb89acb84ef8c26cc1a8bcebf694f9f5ba
MD5 hash:
54c2b90fd9364cd39cecff8ab112b825
SHA1 hash:
96c0c98dcce84e3bbec643083ce675664173bfd2
Detections:
win_neshta_g0
Create hunting rule
win_neshta_auto
Create hunting rule
Link:
https://www.unpac.me/results/d935ebdf-23f7-4620-b85f-44cdf4638ede/
Malware family:
Dharma
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/2491121455a5/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/2491121455a502cad9422ca91297c6fb89acb84ef8c26cc1a8bcebf694f9f5ba

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:MALWARE_Win_Neshta
Create hunting rule
Author:ditekSHen
Description:Detects Neshta
Rule name:MALWARE_Win_Phobos
Create hunting rule
Author:ditekshen
Description:Detects Phobos ransomware
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: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.

Cape
Cape
https://www.capesandbox.com/analysis/319299/

Comments