MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 6eb16df08e9ce41a8c5355c19817741c79386a93c402ffdbbffb5e221e609ab6. 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: 15


Intelligence 15 IOCs YARA 8 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 6eb16df08e9ce41a8c5355c19817741c79386a93c402ffdbbffb5e221e609ab6
SHA3-384 hash: fe523296180e909c2c3455d64c50d2881c71363060dcfa4ae55b37879fc6d427ac6891e0372b821f6e538c5cf4165eb3
SHA1 hash: 1f736cf91178489ab25b62e8b88d73b32324dd8d
MD5 hash: ae06766ec1be8ae093bbd938c195986d
humanhash: pennsylvania-paris-harry-jig
File name:PO 42050 EXP 1423.exe
Download: download sample
Signature Neshta
Create hunting rule
File size:754'688 bytes
First seen:2024-06-26 17:22:58 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash fc6683d30d9f25244a50fd5357825e79 (92 x Formbook, 52 x AgentTesla, 23 x SnakeKeylogger)
ssdeep 12288:EYV6MorX7qzuC3QHO9FQVHPF51jgcCf1qeO2+Zy7IAUQfRY2kMq/U6CAzADow5uC:DBXu9HGaVHZv2+Zy0QfqF//olP5uC
TLSH T15FF42390AEE1D877D1D2133AC03B9D64BC7B38A687993B698245F21AF036747D84352F
TrID 31.3% (.EXE) UPX compressed Win32 Executable (27066/9/6)
30.7% (.EXE) Win32 EXE Yoda's Crypter (26569/9/4)
12.1% (.EXE) Win64 Executable (generic) (10523/12/4)
7.6% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
5.8% (.EXE) Win16 NE executable (generic) (5038/12/1)
File icon (PE):PE icon
dhash icon aae2f3e38383b629 (2'034 x Formbook, 1'183 x CredentialFlusher, 666 x AgentTesla)
Reporter cocaman
Tags:exe Neshta

Intelligence

File Origin
# of uploads :
1
# of downloads :
360
Origin country :
CH CH
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
6eb16df08e9ce41a8c5355c19817741c79386a93c402ffdbbffb5e221e609ab6.exe
Verdict:
Malicious activity
Analysis date:
2024-06-26 17:26:48 UTC
Tags:
upx
Link:
https://app.any.run/tasks/969524ec-5bcd-4470-8b05-a595e801c175

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
Sanesecurity.Rogue.0hr.20240626-1332.UNOFFICIAL
Create hunting rule

Win.Dropper.Remcos-9786056-0
Create hunting rule

Verdict:
Malicious
Score:
96.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=667c4eb7f2a3d25545467d83win10vpnfull_triage
Tags:
Stealth Trojan Redcap
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file in the %temp% directory
Creating a file
Creating a process from a recently created file
Launching a process
Сreating synchronization primitives
Enabling autorun by creating a file
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
AutoIt lolbin microsoft_visual_cc packed packed redcap shell32 upx
Link:
https://www.filescan.io/uploads/667c4e7a0bf5978c0b12a020/reports/c2d28362-9e2f-4f91-8fbe-e16187520910/overview
Verdict:
Malicious
Labled as:
Malware
Link:
https://www.hybrid-analysis.com/sample/6eb16df08e9ce41a8c5355c19817741c79386a93c402ffdbbffb5e221e609ab6
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.
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/883a8e05-a1a7-4545-8f24-c09296caad17
Result
Threat name:
n/a
Detection:
malicious
Classification:
spre.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1463153
Signature
AI detected suspicious sample
Binary is likely a compiled AutoIt script 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
Drops VBS files to the startup folder
Infects executable files (exe, dll, sys, html)
Machine Learning detection for sample
Maps a DLL or memory area into another process
Multi AV Scanner detection for submitted file
Sigma detected: Drops script at startup location
Sigma detected: Files With System Process Name In Unsuspected Locations
Sigma detected: WScript or CScript Dropper
Switches to a custom stack to bypass stack traces
Windows Scripting host queries suspicious COM object (likely to drop second stage)
Writes to foreign memory regions
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1463153 Sample: PO 42050  EXP 1423.exe Startdate: 26/06/2024 Architecture: WINDOWS Score: 100 35 Multi AV Scanner detection for submitted file 2->35 37 Sigma detected: Drops script at startup location 2->37 39 Binary is likely a compiled AutoIt script file 2->39 41 4 other signatures 2->41 7 PO 42050  EXP 1423.exe 6 2->7         started        11 wscript.exe 2 1 2->11         started        process3 file4 31 C:\Users\user\AppData\Local\...\name.exe, PE32 7->31 dropped 51 Binary is likely a compiled AutoIt script file 7->51 13 name.exe 3 7->13         started        53 Drops executables to the windows directory (C:\Windows) and starts them 11->53 55 Windows Scripting host queries suspicious COM object (likely to drop second stage) 11->55 17 svchost.com 11->17         started        signatures5 process6 file7 33 C:\Users\user\AppData\Roaming\...\name.vbs, data 13->33 dropped 57 Binary is likely a compiled AutoIt script file 13->57 59 Drops VBS files to the startup folder 13->59 61 Writes to foreign memory regions 13->61 63 2 other signatures 13->63 19 svchost.exe 4 13->19         started        signatures8 process9 file10 23 C:\Windows\svchost.com, PE32 19->23 dropped 25 C:\Users\user\...\PO 42050  EXP 1423.exe, PE32 19->25 dropped 27 C:\Users\user\AppData\Local\Temp\chrome.exe, PE32 19->27 dropped 29 151 other files (123 malicious) 19->29 dropped 43 Creates an undocumented autostart registry key 19->43 45 Drops PE files with a suspicious file extension 19->45 47 Drops executable to a common third party application directory 19->47 49 Infects executable files (exe, dll, sys, html) 19->49 signatures11
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/6eb16df08e9ce41a8c5355c19817741c79386a93c402ffdbbffb5e221e609ab6
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/6eb16df08e9ce41a8c5355c19817741c79386a93c402ffdbbffb5e221e609ab6/
Threat name:
Win32.Trojan.Strab
Create hunting rule
Status:
Malicious
First seen:
2024-06-26 15:57:17 UTC
File Type:
PE (Exe)
Extracted files:
52
AV detection:
24 of 24 (100.00%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=n2yw34eottsbvdctkxazqf3udr4tq2utyqbp7w577npcehtatk3a._file
Verdict:
malicious
Result
Malware family:
neshta
Create hunting rule
Score:
  10/10
Tags:
family:neshta persistence spyware upx
Link:
https://tria.ge/reports/240626-vx44dsvakg/
Behaviour
Modifies registry class
Suspicious behavior: MapViewOfSection
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Drops file in Program Files directory
Drops file in Windows directory
AutoIT Executable
Suspicious use of SetThreadContext
Drops startup file
Executes dropped EXE
Loads dropped DLL
Modifies system executable filetype association
UPX packed file
Neshta
Unpacked files
SH256 hash:
80fe94261e2ced084c5c799b645a8550f8dbd50d681730cd2f89c2e0d554b3b2
MD5 hash:
1205d003323952a1b982fd8994682ef9
SHA1 hash:
73e3788e273e41a1e8f0e3a8c1c2cbdd653e4165
Detections:
AutoIT_Compiled
Create hunting rule
Link:
https://www.unpac.me/results/568f4e55-67e8-4919-aa1a-abe896e6c4c7/
SH256 hash:
d60208f3894f4556caae5ed2297c0ef1593a4a66f5af8f3f2e44a8f2896bbf8e
MD5 hash:
2f50aca08ffc461c86e8fb5bbedda142
SHA1 hash:
6fc5319d084c6e13f950c24c78a9cadb7793c638
Detections:
win_neshta_auto
Create hunting rule
MAL_Malware_Imphash_Mar23_1
Create hunting rule
MAL_Neshta_Generic
Create hunting rule
Link:
https://www.unpac.me/results/568f4e55-67e8-4919-aa1a-abe896e6c4c7/
Parent samples :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 hash:
121118a0f5e0e8c933efd28c9901e54e42792619a8a3a6d11e1f0025a7324bc2
MD5 hash:
54a47f6b5e09a77e61649109c6a08866
SHA1 hash:
4af001b3c3816b860660cf2de2c0fd3c1dfb4878
Link:
https://www.unpac.me/results/568f4e55-67e8-4919-aa1a-abe896e6c4c7/
SH256 hash:
6eb16df08e9ce41a8c5355c19817741c79386a93c402ffdbbffb5e221e609ab6
MD5 hash:
ae06766ec1be8ae093bbd938c195986d
SHA1 hash:
1f736cf91178489ab25b62e8b88d73b32324dd8d
Detections:
SUSP_Imphash_Mar23_3
Create hunting rule
Link:
https://www.unpac.me/results/568f4e55-67e8-4919-aa1a-abe896e6c4c7/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/6eb16df08e9c/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/6eb16df08e9ce41a8c5355c19817741c79386a93c402ffdbbffb5e221e609ab6

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:Borland
Create hunting rule
Author:malware-lu
Rule name:maldoc_find_kernel32_base_method_1
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)
Rule name:MAL_Neshta_Generic
Create hunting rule
Author:Florian Roth (Nextron Systems)
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:shellcode
Create hunting rule
Author:nex
Description:Matched shellcode byte patterns
Rule name:SUSP_Imphash_Mar23_3
Create hunting rule
Author:Arnim Rupp (https://github.com/ruppde)
Description:Detects imphash often found in malware samples (Maximum 0,25% hits with search for 'imphash:x p:0' on Virustotal) = 99,75% hits
Reference:Internal Research
Rule name:UPXV200V290MarkusOberhumerLaszloMolnarJohnReiser
Create hunting rule
Author:malware-lu
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.

Malspam

Neshta

rar 5482f30f4cd3f124c272a13129c770cf944090ae9ef6e1e6a82a2d2bd745a6a7

Neshta

Executable exe 6eb16df08e9ce41a8c5355c19817741c79386a93c402ffdbbffb5e221e609ab6

(this sample)

  
Delivery method
Other
  
Dropped by
SHA256 5482f30f4cd3f124c272a13129c770cf944090ae9ef6e1e6a82a2d2bd745a6a7
  
Dropped by
MD5 c3f86895a1acfd35accdb6cc383dd35d

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (HIGH_ENTROPY_VA)high
CHECK_NXMissing Non-Executable Memory Protectioncritical
Reviews
IDCapabilitiesEvidence
AUTH_APIManipulates User AuthorizationADVAPI32.dll::GetAce
MULTIMEDIA_APICan Play MultimediaWINMM.dll::timeGetTime
WIN_BASE_APIUses Win Base APIKERNEL32.DLL::LoadLibraryA
WIN_NETWORK_APISupports Windows NetworkingMPR.dll::WNetUseConnectionW

Comments