MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a9704735e10e7b769bebf6b33f8fd17d8a1f2d97ef774bf2f8d3ff3694ccf6d9. 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: 12


Intelligence 12 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a9704735e10e7b769bebf6b33f8fd17d8a1f2d97ef774bf2f8d3ff3694ccf6d9
SHA3-384 hash: 5c02cd33844a0b93721ad3be42f468b3166e186ece53cea449c62ac079771a6229127895b40be35f967b3114bb2b8379
SHA1 hash: bfafb16fcc983399191cf2596d700aa03ee6f75c
MD5 hash: 81b76350a44f6356246271612e6f23f2
humanhash: floor-cold-autumn-muppet
File name:81b76350a44f6356246271612e6f23f2.exe
Download: download sample
Signature Neshta
Create hunting rule
File size:493'568 bytes
First seen:2021-12-16 08:39:04 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 12288:SX6jY/c1dmtUw6A5F4janSAhszj7UTN0lT:MItRFA5FoaSae/UTQ
TLSH T1B5A4E0057AD4C535C33A9FB4E861A2E01A35BE27F963D3D779E0BE6E3876352180170A
Reporter abuse_ch
Tags:exe Neshta

Intelligence

File Origin
# of uploads :
1
# of downloads :
153
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/214507/
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
Searching for the window
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 window
Creating a file
Creating a file in the Program Files subdirectories
DNS request
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Creating a process with a hidden window
Launching a process
Unauthorized injection to a recently created process
Enabling autorun with the shell\open\command registry branches
Infecting executable files
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Link:
https://dragonfly.certego.net/analysis/2199/overview
Behaviour
MalwareBazaar
CheckCmdLine
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
neshta overlay packed
Link:
https://www.filescan.io/uploads/61bafb328541392eb4ea37b2/reports/a5e4979b-9e25-4afb-98b7-2223941d93d9/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:
Neshta
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/5ddc5e4e-0f42-47a9-93ff-97d9ee9b6a7b
Result
Threat name:
FormBook Neshta
Create hunting rule
Detection:
malicious
Classification:
spre.troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/908345
Signature
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
C2 URLs / IPs found in malware configuration
Creates an undocumented autostart registry key
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 malware configuration
Infects executable files (exe, dll, sys, html)
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)
Maps a DLL or memory area into another process
Modifies the context of a thread in another process (thread injection)
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sample is not signed and drops a device driver
Sigma detected: Powershell Defender Exclusion
Sigma detected: Suspicius Add Task From User AppData Temp
Tries to detect virtualization through RDTSC time measurements
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM3
Yara detected FormBook
Yara detected Neshta
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 540823 Sample: bbpzSJV7C1.exe Startdate: 16/12/2021 Architecture: WINDOWS Score: 100 51 Multi AV Scanner detection for domain / URL 2->51 53 Found malware configuration 2->53 55 Malicious sample detected (through community Yara rule) 2->55 57 13 other signatures 2->57 9 bbpzSJV7C1.exe 4 2->9         started        process3 file4 37 C:\Windows\svchost.com, PE32 9->37 dropped 39 C:\Users\user\AppData\Local\...\setup.exe, PE32 9->39 dropped 41 C:\Users\user\AppData\...\bbpzSJV7C1.exe, PE32 9->41 dropped 43 13 other malicious files 9->43 dropped 73 Creates an undocumented autostart registry key 9->73 75 Drops PE files with a suspicious file extension 9->75 77 Drops executable to a common third party application directory 9->77 79 Infects executable files (exe, dll, sys, html) 9->79 13 bbpzSJV7C1.exe 4 6 9->13         started        signatures5 process6 file7 45 C:\Users\user\AppData\Roaming\HWDkRuZX.exe, PE32 13->45 dropped 47 C:\Users\user\AppData\Local\...\tmp88B8.tmp, XML 13->47 dropped 49 C:\Users\user\AppData\...\bbpzSJV7C1.exe.log, ASCII 13->49 dropped 81 Drops executables to the windows directory (C:\Windows) and starts them 13->81 83 Adds a directory exclusion to Windows Defender 13->83 85 Tries to detect virtualization through RDTSC time measurements 13->85 87 Injects a PE file into a foreign processes 13->87 17 svchost.com 1 13->17         started        21 bbpzSJV7C1.exe 13->21         started        23 svchost.com 13->23         started        signatures8 process9 file10 35 C:\Windows\directx.sys, ASCII 17->35 dropped 59 Antivirus detection for dropped file 17->59 61 Machine Learning detection for dropped file 17->61 63 Uses schtasks.exe or at.exe to add and modify task schedules 17->63 71 2 other signatures 17->71 25 powershell.exe 29 17->25         started        65 Modifies the context of a thread in another process (thread injection) 21->65 67 Maps a DLL or memory area into another process 21->67 69 Queues an APC in another process (thread injection) 21->69 27 explorer.exe 21->27 injected 29 schtasks.exe 23->29         started        signatures11 process12 process13 31 conhost.exe 25->31         started        33 conhost.exe 29->33         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a9704735e10e7b769bebf6b33f8fd17d8a1f2d97ef774bf2f8d3ff3694ccf6d9/
Threat name:
Win32.Virus.Neshta
Create hunting rule
Status:
Malicious
First seen:
2021-12-16 01:00:00 UTC
File Type:
PE (Exe)
Extracted files:
1
AV detection:
44 of 45 (97.78%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=vfyeonpbbz5xng7l62zt7d6rpwfb6lmx553ux4xy2p7tnfgm63mq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:neshta family:xloader campaign:ea0r loader persistence rat spyware stealer
Link:
https://tria.ge/reports/211216-kkcs9sccgl/
Behaviour
Creates scheduled task(s)
Modifies registry class
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 SetThreadContext
Loads dropped DLL
Reads user/profile data of web browsers
Executes dropped EXE
Xloader Payload
Detect Neshta Payload
Modifies system executable filetype association
Neshta
Xloader
Unpacked files
SH256 hash:
a9704735e10e7b769bebf6b33f8fd17d8a1f2d97ef774bf2f8d3ff3694ccf6d9
MD5 hash:
81b76350a44f6356246271612e6f23f2
SHA1 hash:
bfafb16fcc983399191cf2596d700aa03ee6f75c
Link:
https://www.unpac.me/results/16749727-c212-4328-93c4-6c67aa4102ef/
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/a9704735e10e7b769bebf6b33f8fd17d8a1f2d97ef774bf2f8d3ff3694ccf6d9

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: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

File information

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

Web download

Neshta

Executable exe a9704735e10e7b769bebf6b33f8fd17d8a1f2d97ef774bf2f8d3ff3694ccf6d9

(this sample)

Cape
Cape
https://www.capesandbox.com/analysis/214507/
  
URLhaus
https://urlhaus.abuse.ch/url/1847962/
  
Delivery method
Distributed via web download

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