MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 38f9926ddf5c8c04566dafb0da2bdba633cf6578f3de13d1cf9c6e7502d54345. 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

Worm.m0yv

Vendor detections: 15

Intelligence 15 IOCs YARA 25 File information Comments

SHA256 hash:	38f9926ddf5c8c04566dafb0da2bdba633cf6578f3de13d1cf9c6e7502d54345
SHA3-384 hash:	51aa45a43d4aedb571220ab02bd20b6e793fc58502d2989f41a32101478a30b89c62195b869c33f81602e933e3ccbce3
SHA1 hash:	78f3486245089443cb5e987de0e31da29f8f48b0
MD5 hash:	dfa876a5e5d13274d62f97e9d842af77
humanhash:	double-oscar-autumn-network
File name:	38f9926ddf5c8c04566dafb0da2bdba633cf6578f3de13d1cf9c6e7502d54345
Download:	download sample
Signature	Worm.m0yv Create hunting rule
File size:	1'620'480 bytes
First seen:	2025-06-10 10:59:41 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	3d95adbf13bbe79dc24dccb401c12091 (881 x AgentTesla, 737 x FormBook, 236 x SnakeKeylogger)
ssdeep	24576:Ktb20pqaCqT5TBWgNQ7ahcR6n/IwtYrzC6AM/TwSfVcYG3K/cJHlnFR+IGNe8j3w:3rg5tQ7ahwRK5MLNiXicJFFRGNzj3
Threatray	2'332 similar samples on MalwareBazaar
TLSH	T10975E02363DE8361C7B25273BA257701BEBF7C2506A1F86B2FD4093DE820562561E673
TrID	40.3% (.EXE) Win64 Executable (generic) (10522/11/4) 19.3% (.EXE) Win16 NE executable (generic) (5038/12/1) 17.2% (.EXE) Win32 Executable (generic) (4504/4/1) 7.7% (.EXE) OS/2 Executable (generic) (2029/13) 7.6% (.EXE) Generic Win/DOS Executable (2002/3)
Magika	pebin
dhash icon	aae2f3e38383b629 (2'034 x Formbook, 1'183 x CredentialFlusher, 666 x AgentTesla)
Reporter	adrian__luca
Tags:	exe Worm.m0yv

Intelligence

File Origin

# of uploads :

# of downloads :

314

Origin country :

Vendor Threat Intelligence

Malware family:

n/a

ID:

File name:

38f9926ddf5c8c04566dafb0da2bdba633cf6578f3de13d1cf9c6e7502d54345

Verdict:

Malicious activity

Analysis date:

2025-06-10 16:57:20 UTC

Tags:

snake keylogger m0yv evasion telegram stealer ims-api generic

Link:

https://app.any.run/tasks/92db5351-6709-439b-bc35-a6622bbae6c4

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/8667/

Detection(s):

SecuriteInfo.com.Win32.Expiro-1.UNOFFICIAL

SecuriteInfo.com.Win32.Expiro-2.UNOFFICIAL

Win.Trojan.Autoit-10033284-0

Verdict:

Malicious

Score:

96.5%

Link:

https://cyber-fortress.com/docs/result/index.php?id=684810528bd5d68a12e76c5e

Tags:

autoit expiro emotet

Result

Verdict:

Malware

Maliciousness:

Behaviour

Сreating synchronization primitives

Creating a file in the %AppData% directory

Modifying an executable file

Creating a window

Launching a service

Creating a file in the %temp% directory

Searching for synchronization primitives

Modifying a system executable file

Launching a process

Loading a system driver

Connection attempt to an infection source

Creating a file in the system32 subdirectories

Modifying a system file

DNS request

Connection attempt

Sending an HTTP GET request

Sending a custom TCP request

Reading critical registry keys

Enabling autorun for a service

Query of malicious DNS domain

Enabling autorun with the shell\open\command registry branches

Stealing user critical data

Infecting executable files

Unauthorized injection to a system process

Forced shutdown of a browser

Verdict:

Malicious

Labled as:

Expiro.Generic

Link:

https://www.hybrid-analysis.com/sample/38f9926ddf5c8c04566dafb0da2bdba633cf6578f3de13d1cf9c6e7502d54345

Malware family:

Expiro

Verdict:

Malicious

Link:

https://analyze.intezer.com/analyses/3f570476-3b7b-4028-8353-a6acd4e4092e

Result

Threat name:

Snake Keylogger, VIP Keylogger

Detection:

malicious

Classification:

spre.troj.spyw.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1711279

Signature

Antivirus / Scanner detection for submitted sample

Antivirus detection for dropped file

Binary is likely a compiled AutoIt script file

Creates files inside the volume driver (system volume information)

Drops executable to a common third party application directory

Found direct / indirect Syscall (likely to bypass EDR)

Found malware configuration

Infects executable files (exe, dll, sys, html)

Joe Sandbox ML detected suspicious sample

Malicious sample detected (through community Yara rule)

Maps a DLL or memory area into another process

Multi AV Scanner detection for submitted file

PE file contains section with special chars

Queries random domain names (often used to prevent blacklisting and sinkholes)

Sample uses string decryption to hide its real strings

Suricata IDS alerts for network traffic

Switches to a custom stack to bypass stack traces

Tries to detect the country of the analysis system (by using the IP)

Tries to harvest and steal browser information (history, passwords, etc)

Tries to steal Mail credentials (via file / registry access)

Uses the Telegram API (likely for C&C communication)

Writes data at the end of the disk (often used by bootkits to hide malicious code)

Writes to foreign memory regions

Yara detected Snake Keylogger

Yara detected Telegram RAT

Yara detected VIP Keylogger

Behaviour

Behavior Graph:

Download SVG

Score:

100%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/38f9926ddf5c8c04566dafb0da2bdba633cf6578f3de13d1cf9c6e7502d54345

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/38f9926ddf5c8c04566dafb0da2bdba633cf6578f3de13d1cf9c6e7502d54345/

Threat name:

Win32.Virus.Expiro

Status:

Malicious

First seen:

2025-05-28 13:36:39 UTC

AV detection:

23 of 24 (95.83%)

Threat level:

5/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=hd4ze3o7lsgaivtnv6ynuk63uyz46zly6ppbhuoptrxhkawvincq._file

Result

Malware family:

vipkeylogger

Score:

10/10

Tags:

family:vipkeylogger collection discovery keylogger spyware stealer

Link:

https://tria.ge/reports/250610-m36keagk21/

Behaviour

Checks SCSI registry key(s)

Checks processor information in registry

Modifies data under HKEY_USERS

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: LoadsDriver

Suspicious behavior: MapViewOfSection

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Uses Volume Shadow Copy service COM API

outlook_office_path

outlook_win_path

Browser Information Discovery

Enumerates physical storage devices

Program crash

System Location Discovery: System Language Discovery

Drops file in Program Files directory

Drops file in Windows directory

AutoIT Executable

Drops file in System32 directory

Suspicious use of SetThreadContext

Accesses Microsoft Outlook profiles

Looks up external IP address via web service

Executes dropped EXE

Reads user/profile data of web browsers

VIPKeylogger

Vipkeylogger family

Malware Config

C2 Extraction:

https://api.telegram.org/bot8198771997:AAGzePC2ygOp1C9YAJQc-F-RBjxdozh-1qw/sendMessage?chat_id=6441338208

Verdict:

Malicious

Tags:

Win.Trojan.Autoit-10033284-0 404keylogger

YARA:

n/a

Link:

https://app.threat.zone/submission/2eebfdbe-6330-4138-9d48-1279142afe96

Unpacked files

SH256 hash:

38f9926ddf5c8c04566dafb0da2bdba633cf6578f3de13d1cf9c6e7502d54345

MD5 hash:

dfa876a5e5d13274d62f97e9d842af77

SHA1 hash:

78f3486245089443cb5e987de0e31da29f8f48b0

Link:

https://www.unpac.me/results/8d2947d9-95a4-411b-9de9-da31829a00a2/

SH256 hash:

0ea758015caec64b29ce757c10e5da2074ef392779e6abbe5ded54b3d4c08a88

MD5 hash:

76e1fac585e1660d1e29cb22cffb08fb

SHA1 hash:

284e8d696ac41a89761f20c37fd0f5695c9ed165

Detections:

win_404keylogger_g1

MAL_Envrial_Jan18_1

INDICATOR_SUSPICIOUS_Binary_References_Browsers

INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients

INDICATOR_SUSPICIOUS_EXE_DotNetProcHook

INDICATOR_SUSPICIOUS_EXE_TelegramChatBot

Link:

https://www.unpac.me/results/8d2947d9-95a4-411b-9de9-da31829a00a2/

Parent samples :

39c3b1276f2519a918613c7c33662a21ed9453482d40692b872b36c40933ffe3
38f9926ddf5c8c04566dafb0da2bdba633cf6578f3de13d1cf9c6e7502d54345

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/38f9926ddf5c8c04566dafb0da2bdba633cf6578f3de13d1cf9c6e7502d54345

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:	AutoIT_Compiled Create hunting rule
Author:	@bartblaze
Description:	Identifies compiled AutoIT script (as EXE). This rule by itself does NOT necessarily mean the detected file is malicious.

Rule name:	crime_snake_keylogger Create hunting rule
Author:	Rony (r0ny_123)
Description:	Detects Snake keylogger payload

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

Rule name:	golang_bin_JCorn_CSC846 Create hunting rule
Author:	Justin Cornwell
Description:	CSC-846 Golang detection ruleset

Rule name:	INDICATOR_SUSPICIOUS_Binary_References_Browsers Create hunting rule
Author:	ditekSHen
Description:	Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers.

Rule name:	INDICATOR_SUSPICIOUS_EXE_DotNetProcHook Create hunting rule
Author:	ditekSHen
Description:	Detects executables with potential process hoocking

Rule name:	INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients Create hunting rule
Author:	ditekSHen
Description:	Detects executables referencing many email and collaboration clients. Observed in information stealers

Rule name:	INDICATOR_SUSPICIOUS_EXE_TelegramChatBot Create hunting rule
Author:	ditekSHen
Description:	Detects executables using Telegram Chat Bot

Rule name:	malware_shellcode_hash Create hunting rule
Author:	JPCERT/CC Incident Response Group
Description:	detect shellcode api hash value

Rule name:	MAL_Envrial_Jan18_1 Create hunting rule
Author:	Florian Roth (Nextron Systems)
Description:	Detects Encrial credential stealer malware
Reference:	https://twitter.com/malwrhunterteam/status/953313514629853184

Rule name:	MAL_Envrial_Jan18_1_RID2D8C Create hunting rule
Author:	Florian Roth
Description:	Detects Encrial credential stealer malware
Reference:	https://twitter.com/malwrhunterteam/status/953313514629853184

Rule name:	NET Create hunting rule
Author:	malware-lu

Rule name:	NETexecutableMicrosoft Create hunting rule
Author:	malware-lu

Rule name:	pe_imphash Create hunting rule

Rule name:	RANSOMWARE Create hunting rule
Author:	ToroGuitar

Rule name:	SHA512_Constants Create hunting rule
Author:	phoul (@phoul)
Description:	Look for SHA384/SHA512 constants

Rule name:	Skystars_Malware_Imphash Create hunting rule
Author:	Skystars LightDefender
Description:	imphash

Rule name:	Sus_CMD_Powershell_Usage Create hunting rule
Author:	XiAnzheng
Description:	May Contain(Obfuscated or no) Powershell or CMD Command that can be abused by threat actor(can create FP)

Rule name:	Sus_Obf_Enc_Spoof_Hide_PE Create hunting rule
Author:	XiAnzheng
Description:	Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)

Rule name:	telegram_bot_api Create hunting rule
Author:	rectifyq
Description:	Detects file containing Telegram Bot API

Rule name:	Windows_Trojan_M0yv_92f66467 Create hunting rule
Author:	Elastic Security

Rule name:	Windows_Trojan_SnakeKeylogger_af3faa65 Create hunting rule
Author:	Elastic Security

Rule name:	win_m0yv_auto Create hunting rule
Author:	Felix Bilstein - yara-signator at cocacoding dot com
Description:	Detects win.m0yv.

Rule name:	YahLover Create hunting rule
Author:	Kevin Falcoz
Description:	YahLover

File information

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

Cape

https://www.capesandbox.com/analysis/8667/

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_DLL_CHARACTERISTICS	Missing dll Security Characteristics (HIGH_ENTROPY_VA)	high
CHECK_NX	Missing Non-Executable Memory Protection	critical
CHECK_PIE	Missing Position-Independent Executable (PIE) Protection	high

Reviews

ID	Capabilities	Evidence
AUTH_API	Manipulates User Authorization	ADVAPI32.dll::AllocateAndInitializeSid ADVAPI32.dll::CopySid ADVAPI32.dll::FreeSid ADVAPI32.dll::GetLengthSid ADVAPI32.dll::GetTokenInformation ADVAPI32.dll::GetAce
COM_BASE_API	Can Download & Execute components	ole32.dll::CLSIDFromProgID ole32.dll::CoCreateInstance ole32.dll::CoCreateInstanceEx ole32.dll::CoInitializeSecurity ole32.dll::CreateStreamOnHGlobal
MULTIMEDIA_API	Can Play Multimedia	WINMM.dll::mciSendStringW WINMM.dll::timeGetTime WINMM.dll::waveOutSetVolume
SECURITY_BASE_API	Uses Security Base API	ADVAPI32.dll::AddAce ADVAPI32.dll::AdjustTokenPrivileges ADVAPI32.dll::CheckTokenMembership ADVAPI32.dll::DuplicateTokenEx ADVAPI32.dll::GetAclInformation ADVAPI32.dll::GetSecurityDescriptorDacl
SHELL_API	Manipulates System Shell	SHELL32.dll::ShellExecuteExW SHELL32.dll::ShellExecuteW SHELL32.dll::SHFileOperationW
WIN32_PROCESS_API	Can Create Process and Threads	ADVAPI32.dll::CreateProcessAsUserW KERNEL32.dll::CreateProcessW ADVAPI32.dll::CreateProcessWithLogonW KERNEL32.dll::OpenProcess ADVAPI32.dll::OpenProcessToken ADVAPI32.dll::OpenThreadToken
WIN_BASE_API	Uses Win Base API	KERNEL32.dll::TerminateProcess KERNEL32.dll::SetSystemPowerState KERNEL32.dll::LoadLibraryA KERNEL32.dll::LoadLibraryExW KERNEL32.dll::LoadLibraryW KERNEL32.dll::GetDriveTypeW
WIN_BASE_EXEC_API	Can Execute other programs	KERNEL32.dll::WriteConsoleW KERNEL32.dll::ReadConsoleW KERNEL32.dll::SetStdHandle KERNEL32.dll::GetConsoleCP KERNEL32.dll::GetConsoleMode
WIN_BASE_IO_API	Can Create Files	KERNEL32.dll::CopyFileW KERNEL32.dll::CreateDirectoryW KERNEL32.dll::CreateHardLinkW IPHLPAPI.DLL::IcmpCreateFile KERNEL32.dll::CreateFileW KERNEL32.dll::DeleteFileW
WIN_BASE_USER_API	Retrieves Account Information	KERNEL32.dll::GetComputerNameW ADVAPI32.dll::GetUserNameW ADVAPI32.dll::LogonUserW ADVAPI32.dll::LookupPrivilegeValueW
WIN_NETWORK_API	Supports Windows Networking	MPR.dll::WNetAddConnection2W MPR.dll::WNetUseConnectionW
WIN_REG_API	Can Manipulate Windows Registry	ADVAPI32.dll::RegConnectRegistryW ADVAPI32.dll::RegCreateKeyExW ADVAPI32.dll::RegDeleteKeyW ADVAPI32.dll::RegOpenKeyExW ADVAPI32.dll::RegQueryValueExW ADVAPI32.dll::RegSetValueExW
WIN_USER_API	Performs GUI Actions	USER32.dll::BlockInput USER32.dll::CloseDesktop USER32.dll::CreateMenu USER32.dll::EmptyClipboard USER32.dll::FindWindowExW USER32.dll::FindWindowW

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