MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a3d59149a2b1ddb119228ca898c8f6ea1a9256b9567f00bfb1529283960b34d8. 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: 11


Intelligence 11 IOCs YARA 3 File information Comments 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a3d59149a2b1ddb119228ca898c8f6ea1a9256b9567f00bfb1529283960b34d8
SHA3-384 hash: 91cbb7b143058f228effbc1e68d81a71225111a5100d3e0fb0f140dce5adaa3a36fc0678bcc27f1fd045bf7c52e4620e
SHA1 hash: 458b1d290faa64ebbe4c5989229bacc060bd8713
MD5 hash: 7d22685ef9d80598a24d2f096e527da9
humanhash: speaker-georgia-washington-march
File name:7d22685ef9d80598a24d2f096e527da9
Download: download sample
Signature Neshta
Create hunting rule
File size:518'144 bytes
First seen:2021-10-08 09:22:36 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:rgYSAtU5KRjV6J5ByyID7OAMmNQku0mVimPaZMknR0Eb5yLdKC:r1SA02jM5ByymVNc0mVigaZrnu
Threatray 161 similar samples on MalwareBazaar
TLSH T180B412B8B367537BED3983F82C346180A3F560252819F7786ECD74D828767B85A60D27
Reporter zbetcheckin
Tags:32 exe Neshta

Intelligence

File Origin
# of uploads :
1
# of downloads :
209
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
7d22685ef9d80598a24d2f096e527da9
Verdict:
Malicious activity
Analysis date:
2021-10-08 09:25:11 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/205d91c1-95f9-4c9c-8592-da91c5299d8a

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Neshta
Create hunting rule
Link:
https://www.capesandbox.com/analysis/196100/
Detection(s):
Win.Trojan.Neshuta-1
Create hunting rule

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

SecuriteInfo.com.Trojan.PackedNET.1068-1.UNOFFICIAL
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
Creating a file in the Windows directory
Creating a process from a recently created file
Modifying an executable file
Creating a window
Creating a file
Launching a process
Delayed writing of the file
Enabling autorun with the shell\open\command registry branches
Infecting executable files
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
67%
Tags:
neshta overlay packed virus winlock
Link:
https://www.filescan.io/uploads/61600df8b95458900cdf1b1b/reports/de179764-737d-4c11-8b42-1eb59b255397/overview
Gathering data
Result
Threat name:
FormBook Neshta
Create hunting rule
Detection:
malicious
Classification:
spre.troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/866987
Signature
.NET source code contains potential unpacker
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
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
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)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sample is not signed and drops a device driver
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Yara detected AntiVM3
Yara detected FormBook
Yara detected Neshta
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 499415 Sample: o4JGSBVdVj Startdate: 08/10/2021 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 8 other signatures 2->76 14 o4JGSBVdVj.exe 4 2->14         started        process3 file4 58 C:\Windows\svchost.com, PE32 14->58 dropped 60 C:\Users\user\AppData\...\o4JGSBVdVj.exe, PE32 14->60 dropped 62 C:\MSOCache\All Users\...\setup.exe, PE32 14->62 dropped 64 C:\MSOCache\All Users\...\ose.exe, PE32 14->64 dropped 96 Creates an undocumented autostart registry key 14->96 98 Drops PE files with a suspicious file extension 14->98 100 Drops executable to a common third party application directory 14->100 18 o4JGSBVdVj.exe 3 14->18         started        signatures5 process6 file7 48 C:\Users\user\AppData\...\o4JGSBVdVj.exe.log, ASCII 18->48 dropped 78 Multi AV Scanner detection for dropped file 18->78 80 Injects a PE file into a foreign processes 18->80 22 o4JGSBVdVj.exe 3 2 18->22         started        27 o4JGSBVdVj.exe 18->27         started        signatures8 process9 dnsIp10 66 192.168.2.1 unknown unknown 22->66 50 C:\Users\user\AppData\Local\...\setup.exe, PE32 22->50 dropped 52 C:\Users\user\AppData\...\ChromeSetup.exe, PE32 22->52 dropped 54 C:\ProgramData\...\vcredist_x86.exe, PE32 22->54 dropped 56 6 other malicious files 22->56 dropped 82 Drops executable to a common third party application directory 22->82 84 Infects executable files (exe, dll, sys, html) 22->84 29 svchost.com 1 22->29         started        file11 signatures12 process13 signatures14 88 Antivirus detection for dropped file 29->88 90 Multi AV Scanner detection for dropped file 29->90 92 Machine Learning detection for dropped file 29->92 94 Sample is not signed and drops a device driver 29->94 32 o4JGSBVdVj.exe 3 29->32         started        process15 signatures16 68 Injects a PE file into a foreign processes 32->68 35 o4JGSBVdVj.exe 1 2 32->35         started        37 o4JGSBVdVj.exe 32->37         started        process17 process18 39 svchost.com 35->39         started        process19 41 o4JGSBVdVj.exe 39->41         started        signatures20 86 Injects a PE file into a foreign processes 41->86 44 o4JGSBVdVj.exe 41->44         started        process21 process22 46 svchost.com 44->46         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a3d59149a2b1ddb119228ca898c8f6ea1a9256b9567f00bfb1529283960b34d8/
Threat name:
Win32.Virus.Neshta
Create hunting rule
Status:
Malicious
First seen:
2021-10-07 03:51:17 UTC
AV detection:
44 of 45 (97.78%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=upkzcsncwho3cgjcrsujrshw5injevvzkz7qbp5rkkjihfqlgtma._file
Verdict:
malicious
Similar samples:
412bcb0abe4197be23ae265308d96f9db0f0fd5f96ec0ac053d744d1565e80eb
Neshta
44447e8ee66daa872048fcca50842694d35a78e77cf9d6ac8e8e4979958d46e7
Neshta
5d7566ee48f7c1525a1d0e5cf2e5463929d7ad9fe55519acec2a4fcb19507f7e
Neshta
769e6e12a5443217fd8c5ce510846775b714eb221cc11974969b5ff7442b5484
Neshta
934615bde495d4cbbfd0178c6eea46804cb19a447db1a8781bb43c5986012cbb
Neshta
b2beeab94f7cbc38143e2a050c263476419bb48d2ec37470df5b1ee0da812f50
Neshta
cde036f2afa7aab3e775edf993ec455176f25bba3dd9440d0853945e425131a3
Neshta
d7511047d6d0127108e1cf026c3a8c7d5dbb860d62722371d4c3f65c3c1dc920
Neshta
e615a06c4539fc5fabedd46658fdc2ff534d0173f9043162f3809ef3002f0a2c
Neshta
+ 151 additional samples on MalwareBazaar
Result
Malware family:
neshta
Create hunting rule
Score:
  10/10
Tags:
family:neshta persistence spyware stealer
Link:
https://tria.ge/reports/211008-lcgb6adhap/
Behaviour
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
Suspicious use of SetThreadContext
Loads dropped DLL
Reads user/profile data of web browsers
Executes dropped EXE
Detect Neshta Payload
Modifies system executable filetype association
Neshta
Unpacked files
SH256 hash:
a3d59149a2b1ddb119228ca898c8f6ea1a9256b9567f00bfb1529283960b34d8
MD5 hash:
7d22685ef9d80598a24d2f096e527da9
SHA1 hash:
458b1d290faa64ebbe4c5989229bacc060bd8713
Link:
https://www.unpac.me/results/73902a62-9b06-4145-9d3f-da7b288d8ae5/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/a3d59149a2b1/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Neshta
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/a3d59149a2b1ddb119228ca898c8f6ea1a9256b9567f00bfb1529283960b34d8

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 a3d59149a2b1ddb119228ca898c8f6ea1a9256b9567f00bfb1529283960b34d8

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/1660987/
Cape
Cape
https://www.capesandbox.com/analysis/196100/

Comments


Avatar
zbet commented on 2021-10-08 09:22:37 UTC

url : hxxp://103.155.82.159/0789/vbc.exe