MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 56331fa6c35d48c153e5004cb8574c36e2c16f3bb339e53549dc28ec7ad0f232. 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
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 56331fa6c35d48c153e5004cb8574c36e2c16f3bb339e53549dc28ec7ad0f232
SHA3-384 hash: 25280b6b6b00d8778fa72e654d7da39b623d988b5574ceac5df2b713d9c92530cb0060a846cf99b39c552496ba5a76f0
SHA1 hash: 7355e30b88eb71f34fa37df9dcfcb8fc91013fd4
MD5 hash: 66ce1420280eceebeab924165f28b7bb
humanhash: snake-kansas-crazy-eight
File name:vbc.exe
Download: download sample
Signature Neshta
Create hunting rule
File size:915'968 bytes
First seen:2021-09-17 13:07:53 UTC
Last seen:2021-09-17 14:10:20 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:dYxaM8KuQyczJgn/6Zpbx35rzFlKArMmeEX43aeiJi6So8c3SPsIPfhXL:RjQHzE6Z1//Vrr3fn+Pft
Threatray 143 similar samples on MalwareBazaar
TLSH T131152530179670D5E3327AB08BB3E042F5996D32AF9D92D93843F54DC2B3642E973A25
dhash icon d4c498f8f8b8ccd4 (6 x AgentTesla, 5 x SnakeKeylogger, 3 x Formbook)
Reporter madjack_red
Tags:exe Neshta

Intelligence

File Origin
# of uploads :
2
# of downloads :
172
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
672300912.xlsx
Verdict:
Malicious activity
Analysis date:
2021-09-17 13:01:53 UTC
Tags:
encrypted opendir exploit CVE-2017-11882 loader
Link:
https://app.any.run/tasks/c442e3ac-2a91-4754-894e-53a5a4dd9058

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/188704/
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.1031-1.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Launching a process
Creating a file in the %temp% directory
Delayed writing of the file
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/61752c25a9d585e6d53712f7/reports/eb44a8c1-802e-4958-a8f5-24ba0277498f/overview
Malware family:
Neshta
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/87a32d36-16de-49d3-b54a-1366b9d6ca5a
Result
Threat name:
Neshta Remcos
Create hunting rule
Detection:
malicious
Classification:
spre.troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/852728
Signature
.NET source code contains potential unpacker
Creates an undocumented autostart registry key
Drops executable to a common third party application directory
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 sample
Multi AV Scanner detection for submitted file
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
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 Neshta
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 485162 Sample: vbc.exe Startdate: 17/09/2021 Architecture: WINDOWS Score: 100 37 Multi AV Scanner detection for submitted file 2->37 39 Yara detected AntiVM3 2->39 41 Yara detected Neshta 2->41 43 4 other signatures 2->43 7 vbc.exe 7 2->7         started        process3 file4 23 C:\Users\user\AppData\Local\...\tmp7CA5.tmp, XML 7->23 dropped 25 C:\Users\user\AppData\Local\...\vbc.exe.log, ASCII 7->25 dropped 27 C:\Users\user\AppData\Roaming\PaJrxje.exe, PE32 7->27 dropped 45 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 7->45 47 Uses schtasks.exe or at.exe to add and modify task schedules 7->47 49 Writes to foreign memory regions 7->49 51 Injects a PE file into a foreign processes 7->51 11 vbc.exe 4 7->11         started        15 vbc.exe 7->15         started        17 schtasks.exe 1 7->17         started        19 vbc.exe 7->19         started        signatures5 process6 file7 29 C:\Windows\svchost.com, PE32 11->29 dropped 31 C:\Users\user\Desktop\vbc.exe, PE32 11->31 dropped 33 C:\Users\user\AppData\Local\...\setup.exe, PE32 11->33 dropped 35 112 other files (109 malicious) 11->35 dropped 53 Creates an undocumented autostart registry key 11->53 55 Drops executable to a common third party application directory 11->55 57 Infects executable files (exe, dll, sys, html) 11->57 59 Drops PE files with a suspicious file extension 15->59 21 conhost.exe 17->21         started        signatures8 process9
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/56331fa6c35d48c153e5004cb8574c36e2c16f3bb339e53549dc28ec7ad0f232/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-09-17 13:08:12 UTC
AV detection:
21 of 28 (75.00%)
Threat level:
  5/5
Verdict:
malicious
Similar samples:
1aae387dce8782d2f58887aa73dd970e51656c72ada983fb040989656a6dc47e
Neshta
412bcb0abe4197be23ae265308d96f9db0f0fd5f96ec0ac053d744d1565e80eb
Neshta
4ba041292881b73bc2cf7842f17b64eeca555b209577f5ea842fbeaa30f05ea0
Neshta
a73f2d92c3d48bad18d6a33530cedee50fb1495030c752d406045c113eeabd0a
Neshta
b2ae47f62aa239fb6badfb8af83054c008e9c93d6fe1953732ec03029dc474ce
Neshta
b56e7b2be2bb194db6e8e7c95e9477c49863e0eb8d2818f266f69e8e1a09647b
Neshta
d7511047d6d0127108e1cf026c3a8c7d5dbb860d62722371d4c3f65c3c1dc920
Neshta
de544199796705d18dad9dcf238c7c96de3fc8c793057cad94e319527af9c7bd
Neshta
e1b0ef4dd27c829683569165d98c902a8ed2f2eaa95b1540c6430f5ea3be0b3f
Neshta
e82473f02711056cbcda98d22a858d95c6cf574c17ee77ea62db86e405ff6e77
Neshta
+ 133 additional samples on MalwareBazaar
Result
Malware family:
neshta
Create hunting rule
Score:
  10/10
Tags:
family:neshta evasion persistence spyware
Link:
https://tria.ge/reports/210917-qc9qxsfgb6/
Behaviour
Creates scheduled task(s)
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
Maps connected drives based on registry
Checks BIOS information in registry
Loads dropped DLL
Uses the VBS compiler for execution
Looks for VMWare Tools registry key
Looks for VirtualBox Guest Additions in registry
Detect Neshta Payload
Modifies system executable filetype association
Neshta
Unpacked files
SH256 hash:
ad4a7895d529d5164302bb88596964ab42ff125bf0f5544418c80b6d438cb587
MD5 hash:
43ababb6b0a02907aad43084f12b10d9
SHA1 hash:
b60ba705891d5a666d64300181b475a46714ffa8
Link:
https://www.unpac.me/results/9dd7b4d2-48d2-4ac4-b1c4-d44140e15dde/
SH256 hash:
8636d31753861e3ae9cc953af2d0c0f883910a4ce670f13714b442c6a87d19cf
MD5 hash:
043e3fffe4b8d324554b2b472a3769f5
SHA1 hash:
84ffc7ebda2daaaca95bb7e694dfcce51639c08e
Detections:
win_neshta_auto
Create hunting rule
Link:
https://www.unpac.me/results/9dd7b4d2-48d2-4ac4-b1c4-d44140e15dde/
Parent samples :
56331fa6c35d48c153e5004cb8574c36e2c16f3bb339e53549dc28ec7ad0f232
ec0627ef1feef5903f5771bdb6df060a295af132e90ed023f2e1ad14d5ffb40b
548e403cfad22d1e87842b66925f31b64cae77d1f5371b845cb1dcd66fe99a92
SH256 hash:
f9ee1ce0dfac39feb6257f54b60874c82310fd28200a6d31151c46aeb3b85f7f
MD5 hash:
c162b7320ddd1802144888a265032f02
SHA1 hash:
104a5153adde47ca5189a7aff24a9dd031083921
Link:
https://www.unpac.me/results/9dd7b4d2-48d2-4ac4-b1c4-d44140e15dde/
SH256 hash:
56331fa6c35d48c153e5004cb8574c36e2c16f3bb339e53549dc28ec7ad0f232
MD5 hash:
66ce1420280eceebeab924165f28b7bb
SHA1 hash:
7355e30b88eb71f34fa37df9dcfcb8fc91013fd4
Link:
https://www.unpac.me/results/9dd7b4d2-48d2-4ac4-b1c4-d44140e15dde/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/56331fa6c35d/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/56331fa6c35d48c153e5004cb8574c36e2c16f3bb339e53549dc28ec7ad0f232

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: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

Neshta

Executable exe 56331fa6c35d48c153e5004cb8574c36e2c16f3bb339e53549dc28ec7ad0f232

(this sample)

Cape
Cape
https://www.capesandbox.com/analysis/188704/
  
URLhaus
https://urlhaus.abuse.ch/url/1628231/
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/1628621/
  
URLhaus
https://urlhaus.abuse.ch/url/1628622/
  
URLhaus
https://urlhaus.abuse.ch/url/1628646/

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