MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 33d5cc3d82aab4c81ad2db5e408631f5c57c2a8c8ab108cdc47255d66c327305. 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 12 File information Comments 1

SHA256 hash:	33d5cc3d82aab4c81ad2db5e408631f5c57c2a8c8ab108cdc47255d66c327305
SHA3-384 hash:	595f32715ac10a6e55d40834193b41427bc7b1257f9ba91b180116f96d8b8cd8b7cf9077218fb5da65c6cb1827d5ffe0
SHA1 hash:	e22ddaac8561aa8982bd9c4c978560d38b6a12f6
MD5 hash:	78ecf566d92641373235490ec257accd
humanhash:	fifteen-freddie-triple-butter
File name:	78ecf566d92641373235490ec257accd
Download:	download sample
Signature	Neshta Create hunting rule
File size:	1'113'088 bytes
First seen:	2024-03-02 18:13:43 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	9f4693fc0c511135129493f2161d1e86 (250 x Neshta, 15 x Formbook, 14 x AgentTesla)
ssdeep	24576:p4+RTAxEQuR+FO4fAkNZUlAMXC+Qn652MGO10VRq:pnAx/FvZQAMXC1GGBe
Threatray	1 similar samples on MalwareBazaar
TLSH	T163355B07F6C48ABBC459C27482579332F772B8894B26F7AB17D44A313D66B902F1D398
TrID	64.7% (.EXE) Win32 Executable Borland Delphi 6 (262638/61) 14.1% (.CPL) Windows Control Panel Item (generic) (57583/11/19) 10.2% (.EXE) Win32 EXE PECompact compressed (generic) (41569/9/9) 3.4% (.EXE) Win32 Executable Delphi generic (14182/79/4) 2.5% (.EXE) Win64 Executable (generic) (10523/12/4)
Reporter	zbetcheckin
Tags:	32 exe Neshta

Intelligence

File Origin

# of uploads :

# of downloads :

303

Origin country :

Vendor Threat Intelligence

Detection(s):

Win.Trojan.Neshuta-1

PUA.Win.Packer.Pequake-4

Win.Virus.Neshta-7101689-0

Win.Trojan.Jadtre-5

Result

Verdict:

Malware

Maliciousness:

Behaviour

Sending a custom TCP request

Creating a file

Searching for synchronization primitives

Launching the default Windows debugger (dwwin.exe)

Creating a file in the Program Files subdirectories

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

DNS request

Connection attempt

Enabling autorun with the shell\open\command registry branches

Infecting executable files

Verdict:

Malicious

Threat level:

10/10

Confidence:

100%

Tags:

anti-vm fingerprint lolbin neshta overlay remote shell32 virus

Link:

https://www.filescan.io/uploads/65e36c75d529a676e566e65e/reports/ca5df3b8-82e2-407f-8050-476b93bc6447/overview

Verdict:

Malicious

Labled as:

Virus.Neshta

Link:

https://www.hybrid-analysis.com/sample/33d5cc3d82aab4c81ad2db5e408631f5c57c2a8c8ab108cdc47255d66c327305

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

Verdict:

Malicious

Link:

https://analyze.intezer.com/analyses/5407368b-fe57-4f87-b478-3ae5850ca9d4

Result

Threat name:

Neshta

Detection:

malicious

Classification:

spre.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1401993

Signature

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 or copies MsMpEng.exe (Windows Defender, likely to bypass HIPS)

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)

Multi AV Scanner detection for domain / URL

Multi AV Scanner detection for dropped file

Multi AV Scanner detection for submitted file

Yara detected Neshta

Behaviour

Behavior Graph:

Download SVG

Score:

100%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/33d5cc3d82aab4c81ad2db5e408631f5c57c2a8c8ab108cdc47255d66c327305

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/33d5cc3d82aab4c81ad2db5e408631f5c57c2a8c8ab108cdc47255d66c327305/

Threat name:

Win32.Virus.Neshta

Status:

Malicious

First seen:

2024-02-20 18:16:06 UTC

File Type:

PE (Exe)

Extracted files:

AV detection:

24 of 24 (100.00%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=gpk4ypmcvk2mqgws3npebbrr6xcxykumrkyqrtoeojk5m3bsomcq._file

Verdict:

malicious

Neshta

Result

Malware family:

neshta

Score:

10/10

Tags:

family:neshta persistence spyware stealer

Link:

https://tria.ge/reports/240302-wva8zafg6w/

Behaviour

Modifies registry class

Modifies system certificate store

Suspicious use of WriteProcessMemory

Enumerates physical storage devices

Drops file in Program Files directory

Drops file in Windows directory

Legitimate hosting services abused for malware hosting/C2

Checks computer location settings

Executes dropped EXE

Loads dropped DLL

Modifies system executable filetype association

Reads user/profile data of web browsers

Detect Neshta payload

Neshta

Unpacked files

SH256 hash:

33d5cc3d82aab4c81ad2db5e408631f5c57c2a8c8ab108cdc47255d66c327305

MD5 hash:

78ecf566d92641373235490ec257accd

SHA1 hash:

e22ddaac8561aa8982bd9c4c978560d38b6a12f6

Detections:

win_neshta_g0

win_neshta_1

MAL_Malware_Imphash_Mar23_1

MAL_Neshta_Generic

MALWARE_Win_Neshta

INDICATOR_SUSPICIOUS_EXE_RawGitHub_URL

Link:

https://www.unpac.me/results/0f5f7e94-cb83-4a63-964a-a0323d2b276a/

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/33d5cc3d82aab4c81ad2db5e408631f5c57c2a8c8ab108cdc47255d66c327305

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:	command_and_control Create hunting rule
Author:	CD_R0M_
Description:	This rule searches for common strings found by malware using C2. Based on a sample used by a Ransomware group

Rule name:	DebuggerCheck__API Create hunting rule
Reference:	https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara

Rule name:	INDICATOR_SUSPICIOUS_EXE_RawGitHub_URL Create hunting rule
Author:	ditekSHen
Description:	Detects executables containing URLs to raw contents of a Github gist

Rule name:	MALWARE_Win_Neshta Create hunting rule
Author:	ditekSHen
Description:	Detects Neshta

Rule name:	MAL_Malware_Imphash_Mar23_1 Create hunting rule
Author:	Arnim Rupp
Description:	Detects malware by known bad imphash or rich_pe_header_hash
Reference:	https://yaraify.abuse.ch/statistics/

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:	Rustyloader_mem_loose Create hunting rule
Author:	James_inthe_box
Description:	Corroded buerloader
Reference:	https://app.any.run/tasks/83064edd-c7eb-4558-85e8-621db72b2a24

Rule name:	SEH__vectored Create hunting rule
Reference:	https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara

Rule name:	shellcode Create hunting rule
Author:	nex
Description:	Matched shellcode byte patterns

Rule name:	Windows_Virus_Neshta_2a5a14c8 Create hunting rule
Author:	Elastic Security

File information

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

Web download

Neshta

exe 33d5cc3d82aab4c81ad2db5e408631f5c57c2a8c8ab108cdc47255d66c327305

(this sample)

Delivery method

Distributed via web download

URLhaus

https://urlhaus.abuse.ch/url/2774440/

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

ID	Title	Severity
CHECK_AUTHENTICODE	Missing Authenticode	high
CHECK_NX	Missing Non-Executable Memory Protection	critical
CHECK_PIE	Missing Position-Independent Executable (PIE) Protection	high

Reviews

ID	Capabilities	Evidence
MULTIMEDIA_API	Can Play Multimedia	gdi32.dll::StretchDIBits
SHELL_API	Manipulates System Shell	shell32.dll::ShellExecuteA
WIN32_PROCESS_API	Can Create Process and Threads	kernel32.dll::CloseHandle
WIN_BASE_API	Uses Win Base API	kernel32.dll::GetDriveTypeA kernel32.dll::GetStartupInfoA kernel32.dll::GetCommandLineA
WIN_BASE_EXEC_API	Can Execute other programs	kernel32.dll::WinExec
WIN_BASE_IO_API	Can Create Files	kernel32.dll::CreateDirectoryA kernel32.dll::CreateFileA kernel32.dll::DeleteFileA kernel32.dll::GetWindowsDirectoryA kernel32.dll::GetFileAttributesA kernel32.dll::FindFirstFileA
WIN_REG_API	Can Manipulate Windows Registry	advapi32.dll::RegOpenKeyExA advapi32.dll::RegQueryValueExA advapi32.dll::RegSetValueExA

Comments

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zbet commented on 2024-03-02 18:13:44 UTC

url : hxxps://107.175.3.10//Users/WindowsSecurityHealt_20240213173401169.exe