MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 03428fe5c6161e6f512514d5f1827baa24617611fd068d98e0a8be94fc8030bc. 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 22 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 03428fe5c6161e6f512514d5f1827baa24617611fd068d98e0a8be94fc8030bc
SHA3-384 hash: 1bbb88b43250b828264bd746d5c38d8650b99ad98f777327569006a76ddd6c1f4cf4c99009b68c9b8c40f8c6f75cad8b
SHA1 hash: dd587bd360b681b2ec73bb7bcfc871f8fe981ae0
MD5 hash: de74305f29857f83bc99d71524a8842b
humanhash: mike-blossom-social-montana
File name:03428fe5c6161e6f512514d5f1827baa24617611fd068d98e0a8be94fc8030bc
Download: download sample
Signature Worm.m0yv
Create hunting rule
File size:1'801'216 bytes
First seen:2025-01-10 14:33:32 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash afcdf79be1557326c854b6e20cb900a7 (1'102 x FormBook, 936 x AgentTesla, 399 x RemcosRAT)
ssdeep 49152:pW0c++OCvkGs9Fal24JLo3jIJxDYwgFIDRRAubt5M:4B3vkJ9khPvoUf
TLSH T10185E02273CDC361CB669173BF6AB7016E7B7C610630B85B2F940D7DA960172262D7A3
TrID 63.7% (.CPL) Windows Control Panel Item (generic) (57583/11/19)
11.6% (.EXE) Win64 Executable (generic) (10522/11/4)
7.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
5.5% (.EXE) Win16 NE executable (generic) (5038/12/1)
4.9% (.EXE) Win32 Executable (generic) (4504/4/1)
Magika pebin
File icon (PE):PE icon
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 :
1
# of downloads :
202
Origin country :
HU HU
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
03428fe5c6161e6f512514d5f1827baa24617611fd068d98e0a8be94fc8030bc
Verdict:
Malicious activity
Analysis date:
2025-01-10 19:42:21 UTC
Tags:
expiro sinkhole m0yv autoit
Link:
https://app.any.run/tasks/8c2d97c1-6155-4eab-917a-edc98a3cd386

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
Win.Malware.Expiro-9951780-0
Create hunting rule

Verdict:
Malicious
Score:
99.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=678130412c8240e189bb8c05
Tags:
autoit expiro emotet
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
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
Creating a file in the Windows subdirectories
Modifying a system executable file
Launching a process
Loading a system driver
Connection attempt to an infection source
Modifying a system file
Using the Windows Management Instrumentation requests
Enabling autorun for a service
Query of malicious DNS domain
Enabling autorun with the shell\open\command registry branches
Infecting executable files
Sending an HTTP POST request to an infection source
Sending an HTTP GET request to an infection source
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
adaptive-context anti-vm anti-vm autoit compiled-script evasive expiro extrac32 fingerprint keylogger lolbin microsoft_visual_cc packed packed packer_detected powershell virus virut
Link:
https://www.filescan.io/uploads/67812ffd10df0fde5dd415c7/reports/52466be2-a17c-46ae-a63a-22612c2012bd/overview
Verdict:
Malicious
Labled as:
Expiro.Generic
Link:
https://www.hybrid-analysis.com/sample/03428fe5c6161e6f512514d5f1827baa24617611fd068d98e0a8be94fc8030bc
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:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/52456faf-5618-4176-a090-2da31a6318f8
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
spre.troj.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1588590
Signature
AI detected suspicious sample
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 in the system32 config directory
Drops executable to a common third party application directory
Found direct / indirect Syscall (likely to bypass EDR)
Infects executable files (exe, dll, sys, html)
Machine Learning detection for dropped file
Machine Learning detection for sample
Maps a DLL or memory area into another process
Multi AV Scanner detection for submitted file
Suricata IDS alerts for network traffic
Switches to a custom stack to bypass stack traces
Writes to foreign memory regions
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1588590 Sample: BzK8rQh2O3.exe Startdate: 11/01/2025 Architecture: WINDOWS Score: 100 28 zlenh.biz 2->28 30 uhxqin.biz 2->30 32 5 other IPs or domains 2->32 38 Suricata IDS alerts for network traffic 2->38 40 Antivirus detection for URL or domain 2->40 42 Antivirus detection for dropped file 2->42 44 8 other signatures 2->44 7 BzK8rQh2O3.exe 3 2->7         started        12 AppVClient.exe 1 2->12         started        14 FXSSVC.exe 15 4 2->14         started        16 7 other processes 2->16 signatures3 process4 dnsIp5 34 ssbzmoy.biz 18.141.10.107, 49731, 49734, 49740 AMAZON-02US United States 7->34 36 pywolwnvd.biz 54.244.188.177, 49730, 49732, 49733 AMAZON-02US United States 7->36 20 C:\Windows\System32\alg.exe, PE32+ 7->20 dropped 22 C:\Windows\System32\FXSSVC.exe, PE32+ 7->22 dropped 24 DiagnosticsHub.Sta...llector.Service.exe, PE32+ 7->24 dropped 26 3 other malicious files 7->26 dropped 46 Binary is likely a compiled AutoIt script file 7->46 48 Writes to foreign memory regions 7->48 50 Maps a DLL or memory area into another process 7->50 62 3 other signatures 7->62 18 svchost.exe 7->18         started        52 Antivirus detection for dropped file 12->52 54 Creates files in the system32 config directory 12->54 56 Machine Learning detection for dropped file 12->56 58 Contains functionality to behave differently if execute on a Russian/Kazak computer 12->58 60 Found direct / indirect Syscall (likely to bypass EDR) 16->60 file6 signatures7 process8
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/03428fe5c6161e6f512514d5f1827baa24617611fd068d98e0a8be94fc8030bc
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/03428fe5c6161e6f512514d5f1827baa24617611fd068d98e0a8be94fc8030bc/
Threat name:
Win32.Virus.Expiro
Create hunting rule
Status:
Malicious
First seen:
2024-12-05 13:51:49 UTC
File Type:
PE (Exe)
Extracted files:
27
AV detection:
33 of 38 (86.84%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=anbi7zogcypg6ujfctk7dat3visgc5qr7udi3ghavc7jj7eagc6a._file
Result
Malware family:
n/a
Score:
  7/10
Tags:
discovery spyware stealer
Link:
https://tria.ge/reports/250110-rxhzdaxjgx/
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 FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Uses Volume Shadow Copy service COM API
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
Executes dropped EXE
Loads dropped DLL
Reads user/profile data of web browsers
Verdict:
Malicious
Tags:
trojan Win.Malware.Expiro-9951780-0
YARA:
SUSP_Imphash_Mar23_3
Link:
https://app.threat.zone/submission/6c5eb973-632d-470d-891e-02f5c097bb4b
Unpacked files
SH256 hash:
2ad0626e7745c5e780b06a1c7e75ff30fff7e3c7173100bbb336744ff61eb93c
MD5 hash:
a992ed1e08ef4c7ad6d292fb3691e46a
SHA1 hash:
40e728fab023ad9d51629d70d464cb6834fcbb46
Detections:
win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/2ec9b480-3106-4f95-b0df-5562b1bd4f4f/
Parent samples :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 hash:
03428fe5c6161e6f512514d5f1827baa24617611fd068d98e0a8be94fc8030bc
MD5 hash:
de74305f29857f83bc99d71524a8842b
SHA1 hash:
dd587bd360b681b2ec73bb7bcfc871f8fe981ae0
Link:
https://www.unpac.me/results/2ec9b480-3106-4f95-b0df-5562b1bd4f4f/
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/03428fe5c6161e6f512514d5f1827baa24617611fd068d98e0a8be94fc8030bc

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:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerCheck__GlobalFlags
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerCheck__QueryInfo
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerHiding__Active
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerHiding__Thread
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:malware_shellcode_hash
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect shellcode api hash value
Rule name:MD5_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:meth_stackstrings
Create hunting rule
Author:Willi Ballenthin
Rule name:pe_no_import_table
Create hunting rule
Description:Detect pe file that no import table
Rule name:RansomPyShield_Antiransomware
Create hunting rule
Author:XiAnzheng
Description:Check for Suspicious String and Import combination that Ransomware mostly abuse(can create FP)
Rule name:RIPEMD160_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SEH__vectored
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:SHA1_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA1 constants
Rule name:SHA512_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA384/SHA512 constants
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: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:vmdetect
Create hunting rule
Author:nex
Description:Possibly employs anti-virtualization techniques
Rule name:Windows_Generic_Threat_ebf62328
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.

File information

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

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
CHECK_PIEMissing Position-Independent Executable (PIE) Protectionhigh
Reviews
IDCapabilitiesEvidence
AUTH_APIManipulates User AuthorizationADVAPI32.dll::AllocateAndInitializeSid
ADVAPI32.dll::CopySid
ADVAPI32.dll::FreeSid
ADVAPI32.dll::GetLengthSid
ADVAPI32.dll::GetTokenInformation
ADVAPI32.dll::GetAce
COM_BASE_APICan Download & Execute componentsole32.dll::CLSIDFromProgID
ole32.dll::CoCreateInstance
ole32.dll::CoCreateInstanceEx
ole32.dll::CoInitializeSecurity
ole32.dll::CreateStreamOnHGlobal
MULTIMEDIA_APICan Play MultimediaWINMM.dll::mciSendStringW
WINMM.dll::timeGetTime
WINMM.dll::waveOutSetVolume
SECURITY_BASE_APIUses Security Base APIADVAPI32.dll::AddAce
ADVAPI32.dll::AdjustTokenPrivileges
ADVAPI32.dll::CheckTokenMembership
ADVAPI32.dll::DuplicateTokenEx
ADVAPI32.dll::GetAclInformation
ADVAPI32.dll::GetSecurityDescriptorDacl
SHELL_APIManipulates System ShellSHELL32.dll::ShellExecuteExW
SHELL32.dll::ShellExecuteW
SHELL32.dll::SHFileOperationW
WIN32_PROCESS_APICan Create Process and ThreadsADVAPI32.dll::CreateProcessAsUserW
KERNEL32.dll::CreateProcessW
ADVAPI32.dll::CreateProcessWithLogonW
KERNEL32.dll::OpenProcess
ADVAPI32.dll::OpenProcessToken
ADVAPI32.dll::OpenThreadToken
WIN_BASE_APIUses Win Base APIKERNEL32.dll::TerminateProcess
KERNEL32.dll::SetSystemPowerState
KERNEL32.dll::LoadLibraryA
KERNEL32.dll::LoadLibraryExW
KERNEL32.dll::LoadLibraryW
KERNEL32.dll::GetDriveTypeW
WIN_BASE_EXEC_APICan Execute other programsKERNEL32.dll::WriteConsoleW
KERNEL32.dll::ReadConsoleW
KERNEL32.dll::SetStdHandle
KERNEL32.dll::GetConsoleCP
KERNEL32.dll::GetConsoleMode
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CopyFileExW
KERNEL32.dll::CopyFileW
KERNEL32.dll::CreateDirectoryW
KERNEL32.dll::CreateHardLinkW
IPHLPAPI.DLL::IcmpCreateFile
KERNEL32.dll::CreateFileW
WIN_BASE_USER_APIRetrieves Account InformationKERNEL32.dll::GetComputerNameW
ADVAPI32.dll::GetUserNameW
ADVAPI32.dll::LogonUserW
ADVAPI32.dll::LookupPrivilegeValueW
WIN_NETWORK_APISupports Windows NetworkingMPR.dll::WNetAddConnection2W
MPR.dll::WNetUseConnectionW
WIN_REG_APICan Manipulate Windows RegistryADVAPI32.dll::RegConnectRegistryW
ADVAPI32.dll::RegCreateKeyExW
ADVAPI32.dll::RegDeleteKeyW
ADVAPI32.dll::RegOpenKeyExW
ADVAPI32.dll::RegQueryValueExW
ADVAPI32.dll::RegSetValueExW
WIN_USER_APIPerforms GUI ActionsUSER32.dll::BlockInput
USER32.dll::CloseDesktop
USER32.dll::CreateMenu
USER32.dll::EmptyClipboard
USER32.dll::FindWindowExW
USER32.dll::FindWindowW

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