MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 39c3b1276f2519a918613c7c33662a21ed9453482d40692b872b36c40933ffe3. 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 24 File information Comments

SHA256 hash:	39c3b1276f2519a918613c7c33662a21ed9453482d40692b872b36c40933ffe3
SHA3-384 hash:	8ede44281d7aa7ddd51621730844efa25b833e314662c1dc457a45aaf3feca3298a5fda552f22264838862c8e79163f9
SHA1 hash:	3e7e241b7d74ac421e3be5493430a25206b979cc
MD5 hash:	2e852d0e01679dc069045e5e369e977b
humanhash:	music-island-fourteen-leopard
File name:	purchase order.exe
Download:	download sample
Signature	Worm.m0yv Create hunting rule
File size:	1'601'536 bytes
First seen:	2025-05-26 07:13:28 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:Wtb20pqaCqT5TBWgNQ7ajpSBg1mht6Aa/TwSfVcYG3K/cJHlnFR+IGNe8j3Iz:Drg5tQ7ajQBg05aLNiXicJFFRGNzj3
Threatray	2'215 similar samples on MalwareBazaar
TLSH	T16B75E01363DE8361C3B25273BA257701BEBF7C2506A1F96B2FD4093DE920162561EA73
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	lowmal3
Tags:	exe Worm.m0yv

Intelligence

File Origin

# of uploads :

# of downloads :

474

Origin country :

Vendor Threat Intelligence

Malware family:

n/a

ID:

File name:

purchase order.exe

Verdict:

Malicious activity

Analysis date:

2025-05-26 07:17:18 UTC

Tags:

snake keylogger m0yv evasion telegram stealer ims-api generic

Link:

https://app.any.run/tasks/300cc14c-eb3b-4023-9101-cf965dffae21

Note:

ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample

Detection(s):

SecuriteInfo.com.Win32.Expiro-1.UNOFFICIAL

SecuriteInfo.com.Win32.Expiro-2.UNOFFICIAL

Verdict:

Malicious

Score:

99.1%

Link:

https://cyber-fortress.com/docs/result/index.php?id=683415f5acf88f5815e6fe1e

Tags:

autoit emotet expiro

Result

Verdict:

Malware

Maliciousness:

Behaviour

Сreating synchronization primitives

Creating a window

Modifying an executable file

Creating a file in the %AppData% directory

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

Sending an HTTP POST request to an infection source

Unauthorized injection to a system process

Sending an HTTP GET request to an infection source

Forced shutdown of a browser

Verdict:

Malicious

Labled as:

Expiro.Generic

Link:

https://www.hybrid-analysis.com/sample/39c3b1276f2519a918613c7c33662a21ed9453482d40692b872b36c40933ffe3

Malware family:

Snake Keylogger

Verdict:

Malicious

Link:

https://analyze.intezer.com/analyses/08c926d5-2005-4d14-9587-3087705f9c6e

Result

Threat name:

Snake Keylogger, VIP Keylogger

Detection:

malicious

Classification:

spre.troj.spyw.expl.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1699066

Signature

Antivirus / Scanner detection for submitted sample

Antivirus detection for dropped file

Antivirus detection for URL or domain

Binary is likely a compiled AutoIt script file

Contains functionality to behave differently if execute on a Russian/Kazak computer

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 evasive API chain (may stop execution after checking computer name)

Found evasive API chain (may stop execution after checking volume information)

Found malware configuration

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

Initial sample is a PE file and has a suspicious name

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

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 sandboxes and other dynamic analysis tools (process name or module or function)

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 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/39c3b1276f2519a918613c7c33662a21ed9453482d40692b872b36c40933ffe3

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/39c3b1276f2519a918613c7c33662a21ed9453482d40692b872b36c40933ffe3/

Threat name:

Win32.Virus.Expiro

Status:

Malicious

First seen:

2025-05-26 01:03:41 UTC

File Type:

PE (Exe)

Extracted files:

AV detection:

22 of 24 (91.67%)

Threat level:

5/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=hhb3cj3peum2sgdbhr6dgzrkehwziu2ifvagsk4hfm3micjt77rq._file

Verdict:

malicious

Label(s):

autoit

m0yv

Result

Malware family:

vipkeylogger

Score:

10/10

Tags:

family:vipkeylogger collection discovery keylogger spyware stealer

Link:

https://tria.ge/reports/250526-h2tr1awq17/

Behaviour

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: LoadsDriver

Suspicious behavior: MapViewOfSection

Suspicious use of AdjustPrivilegeToken

Suspicious use of FindShellTrayWindow

Suspicious use of SendNotifyMessage

Suspicious use of WriteProcessMemory

Uses Volume Shadow Copy service COM API

outlook_office_path

outlook_win_path

Checks SCSI registry key(s)

Checks processor information in registry

Modifies data under HKEY_USERS

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

Enumerates connected drives

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

Unpacked files

SH256 hash:

39c3b1276f2519a918613c7c33662a21ed9453482d40692b872b36c40933ffe3

MD5 hash:

2e852d0e01679dc069045e5e369e977b

SHA1 hash:

3e7e241b7d74ac421e3be5493430a25206b979cc

Link:

https://www.unpac.me/results/a0f548e4-c6eb-4464-8425-f4670407a44d/

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/a0f548e4-c6eb-4464-8425-f4670407a44d/

Parent samples :

39c3b1276f2519a918613c7c33662a21ed9453482d40692b872b36c40933ffe3
38f9926ddf5c8c04566dafb0da2bdba633cf6578f3de13d1cf9c6e7502d54345

Malware family:

VIPKeylogger

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/39c3b1276f25/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/39c3b1276f2519a918613c7c33662a21ed9453482d40692b872b36c40933ffe3

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_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.

Malspam

Worm.m0yv

exe 39c3b1276f2519a918613c7c33662a21ed9453482d40692b872b36c40933ffe3

(this sample)

Delivery method

Distributed via e-mail attachment

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

Comments

Login required

You need to login to in order to write a comment. Login with your abuse.ch account.

No comments found for this malware sample