MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 452d7f2afb6fbb3afa307419983194bd68e9a577fb47a02f6ba36c881f13c10d. 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: 11


Intelligence 11 IOCs YARA 18 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 452d7f2afb6fbb3afa307419983194bd68e9a577fb47a02f6ba36c881f13c10d
SHA3-384 hash: 9159e4da76d73a8eacca23b07ffbb518994f56445d879f295c0945104c64a833a5dd93109d26518e42a867b51b87cda9
SHA1 hash: a1a9ef8d2558c555f4ff9033a72e1822109caa2c
MD5 hash: 4856d7717e2afb71eae26fbc11e58cd0
humanhash: cola-coffee-hydrogen-vermont
File name:7Y18r(155).exe
Download: download sample
Signature Worm.m0yv
Create hunting rule
File size:4'771'840 bytes
First seen:2024-07-24 17:41:43 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 5ee2ab762fa8d4fc5f9a047c2ed853ea (1 x Worm.m0yv)
ssdeep 49152:3ndPjazwYcCOlBWD9rqGfi0iIGTHI6DOnIIeNxu6xl1aZt6m5xbzDI6bpsRJrAGq:/2D86iFIIm3Gob5iELt2sEE5
Threatray 6 similar samples on MalwareBazaar
TLSH T175267C03F2F940D8E0AEE27897359732EA72BC568B34A5DF025077151E76EE05B38B61
TrID 63.5% (.EXE) Win64 Executable (generic) (10523/12/4)
12.2% (.EXE) OS/2 Executable (generic) (2029/13)
12.0% (.EXE) Generic Win/DOS Executable (2002/3)
12.0% (.EXE) DOS Executable Generic (2000/1)
File icon (PE):PE icon
dhash icon e862eae6b692c6ee (3 x Azov, 1 x CoinMiner.XMRig, 1 x Worm.m0yv)
Reporter Anonymous
Tags:exe Worm.m0yv


Avatar
Anonymous
this malware sample is very nasty!

Intelligence

File Origin
# of uploads :
1
# of downloads :
234
Origin country :
CN CN
Vendor Threat Intelligence
Detection(s):
Win.Virus.Expiro-9976460-0
Create hunting rule

Verdict:
Malicious
Score:
99.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=66a13d01cb3d02fa0e494a42
Tags:
Execution Network Static Stealth Expiro
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Сreating synchronization primitives
Creating a file in the %AppData% directory
Modifying an executable file
Restart of the analyzed sample
Launching a service
Searching for synchronization primitives
Creating a file
Creating a file in the %temp% directory
Modifying a system executable file
Creating a file in the Windows subdirectories
Launching a process
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
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-debug anti-vm expand expiro explorer fingerprint keylogger lolbin microsoft_visual_cc mshtml packed virus
Link:
https://www.filescan.io/uploads/66a13d559149fd55f98ffdd4/reports/3c6fda66-57f0-46ec-98f6-07564c2eaebf/overview
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:
Expiro
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/7d6509f2-6dd6-43e1-91f2-3352c873fe53
Result
Threat name:
n/a
Detection:
malicious
Classification:
spre.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1480483
Signature
AI detected suspicious sample
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Antivirus detection for URL or domain
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
Multi AV Scanner detection for submitted file
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1480483 Sample: 7Y18r(155).exe Startdate: 24/07/2024 Architecture: WINDOWS Score: 100 43 zlenh.biz 2->43 45 xlfhhhm.biz 2->45 47 14 other IPs or domains 2->47 65 Antivirus detection for URL or domain 2->65 67 Antivirus detection for dropped file 2->67 69 Antivirus / Scanner detection for submitted sample 2->69 71 5 other signatures 2->71 8 alg.exe 1 2->8         started        13 7Y18r(155).exe 4 4 2->13         started        15 elevation_service.exe 2->15         started        17 maintenanceservice.exe 2 2->17         started        signatures3 process4 dnsIp5 53 lpuegx.biz 82.112.184.197, 49764, 62911, 62913 FIRST_LINE-SP_FOR_B2B_CUSTOMERSUPSTREAMSRU Russian Federation 8->53 55 xlfhhhm.biz 47.129.31.212, 62919, 80 ESAMARA-ASRU Canada 8->55 57 6 other IPs or domains 8->57 33 C:\Program Files\...\updater.exe, PE32+ 8->33 dropped 35 C:\Program Files\...\private_browsing.exe, PE32+ 8->35 dropped 37 C:\Program Files\...\plugin-container.exe, PE32+ 8->37 dropped 41 117 other malicious files 8->41 dropped 75 Creates files in the system32 config directory 8->75 77 Drops executable to a common third party application directory 8->77 79 Infects executable files (exe, dll, sys, html) 8->79 39 C:\Program Files (x86)\...\armsvc.exe, PE32 13->39 dropped 81 Contains functionality to behave differently if execute on a Russian/Kazak computer 13->81 83 Found direct / indirect Syscall (likely to bypass EDR) 13->83 19 7Y18r(155).exe 3 13->19         started        23 chrome.exe 7 13->23         started        file6 signatures7 process8 dnsIp9 29 C:\Windows\System32\alg.exe, PE32+ 19->29 dropped 31 C:\Windows\System32\AppVClient.exe, PE32+ 19->31 dropped 73 Infects executable files (exe, dll, sys, html) 19->73 49 192.168.2.4, 138, 443, 49163 unknown unknown 23->49 51 239.255.255.250 unknown Reserved 23->51 26 chrome.exe 23->26         started        file10 signatures11 process12 dnsIp13 59 googlehosted.l.googleusercontent.com 142.250.181.225, 443, 49737, 49760 GOOGLEUS United States 26->59 61 www.google.com 142.250.185.228, 443, 49739, 62915 GOOGLEUS United States 26->61 63 3 other IPs or domains 26->63
Score:
12%
Verdict:
Benign
File Type:
PE
Link:
https://malprob.io/report/452d7f2afb6fbb3afa307419983194bd68e9a577fb47a02f6ba36c881f13c10d
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/452d7f2afb6fbb3afa307419983194bd68e9a577fb47a02f6ba36c881f13c10d/
Threat name:
Win64.Virus.Expiro
Create hunting rule
Status:
Malicious
First seen:
2024-06-18 00:09:52 UTC
File Type:
PE+ (Exe)
Extracted files:
162
AV detection:
27 of 38 (71.05%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=iuwx6kx3n65tv6rqoqmzqmmuxvuotjlx7nd2al3lunwiqhytyegq._file
Verdict:
malicious
Similar samples:
3aab81ce8cf67ae704722e9b101df1dc8427c1c4cc062ba12f97963dd250e55b
Worm.m0yv
623ba3741a6f9e87aef1557d2373cdb0632b7357ba810b238836f99f09f80d92
Worm.m0yv
Result
Malware family:
n/a
Score:
  7/10
Tags:
discovery spyware stealer
Link:
https://tria.ge/reports/240724-v92tsssbrg/
Behaviour
Checks SCSI registry key(s)
Checks processor information in registry
Enumerates system info in registry
Modifies data under HKEY_USERS
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: LoadsDriver
Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of WriteProcessMemory
Uses Volume Shadow Copy service COM API
Browser Information Discovery
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Drops file in Program Files directory
Drops file in Windows directory
Drops file in System32 directory
Executes dropped EXE
Reads user/profile data of web browsers
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/a9b7fe8a-f27c-42ff-aeb1-a8c9fdf82811
Unpacked files
SH256 hash:
452d7f2afb6fbb3afa307419983194bd68e9a577fb47a02f6ba36c881f13c10d
MD5 hash:
4856d7717e2afb71eae26fbc11e58cd0
SHA1 hash:
a1a9ef8d2558c555f4ff9033a72e1822109caa2c
Link:
https://www.unpac.me/results/93d0bd73-9a71-41f6-9658-e07d0502c445/
Please note that we are no longer able to provide a coverage score for Virus Total.

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:Check_OutputDebugStringA_iat
Create hunting rule
Rule name:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerCheck__MemoryWorkingSet
Create hunting rule
Author:Fernando Mercês
Description:Anti-debug process memory working set size check
Reference:http://www.gironsec.com/blog/2015/06/anti-debugger-trick-quicky/
Rule name:DebuggerCheck__QueryInfo
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerException__SetConsoleCtrl
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:MD5_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:QbotStuff
Create hunting rule
Author:anonymous
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:yara_template
Create hunting rule

File information

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

Malspam

Worm.m0yv

Executable exe 452d7f2afb6fbb3afa307419983194bd68e9a577fb47a02f6ba36c881f13c10d

(this sample)

  
Link
https://bbs.kafan.cn/forum-31-1.html
  
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
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (GUARD_CF)high
CHECK_PIEMissing Position-Independent Executable (PIE) Protectionhigh
Reviews
IDCapabilitiesEvidence
AUTH_APIManipulates User AuthorizationADVAPI32.dll::BuildExplicitAccessWithNameW
ADVAPI32.dll::BuildTrusteeWithSidW
ADVAPI32.dll::ConvertSidToStringSidW
ADVAPI32.dll::ConvertStringSecurityDescriptorToSecurityDescriptorW
ADVAPI32.dll::ConvertStringSidToSidW
ADVAPI32.dll::CreateWellKnownSid
COM_BASE_APICan Download & Execute componentsole32.dll::CoCreateInstance
KERNEL_APIManipulates Windows Kernel & Driversntdll.dll::RtlInitUnicodeString
MULTIMEDIA_APICan Play MultimediaWINMM.dll::timeBeginPeriod
WINMM.dll::timeEndPeriod
WINMM.dll::timeGetTime
NCRYPT_APIUses NCrypt APIncrypt.dll::NCryptCreatePersistedKey
ncrypt.dll::NCryptExportKey
ncrypt.dll::NCryptImportKey
ncrypt.dll::NCryptSignHash
SECURITY_BASE_APIUses Security Base APIADVAPI32.dll::AdjustTokenPrivileges
ADVAPI32.dll::CheckTokenMembership
ADVAPI32.dll::DuplicateTokenEx
ADVAPI32.dll::GetSecurityDescriptorControl
ADVAPI32.dll::GetSecurityDescriptorDacl
ADVAPI32.dll::GetSecurityDescriptorGroup
SHELL_APIManipulates System ShellSHELL32.dll::ShellExecuteExW
SHELL32.dll::ShellExecuteW
URL_MONIKERS_APICan Download & Execute componentsurlmon.dll::CreateURLMonikerEx
WIN32_PROCESS_APICan Create Process and ThreadsADVAPI32.dll::CreateProcessAsUserW
KERNEL32.dll::CreateProcessW
KERNEL32.dll::GetProcessMitigationPolicy
ADVAPI32.dll::OpenProcessToken
KERNEL32.dll::OpenProcess
KERNEL32.dll::SetProcessShutdownParameters
WIN_BASE_APIUses Win Base APIKERNEL32.dll::TerminateProcess
KERNEL32.dll::LoadLibraryExA
KERNEL32.dll::LoadLibraryExW
KERNEL32.dll::LoadLibraryW
KERNEL32.dll::GetDriveTypeW
KERNEL32.dll::GetSystemInfo
WIN_BASE_EXEC_APICan Execute other programsKERNEL32.dll::WriteConsoleW
KERNEL32.dll::ReadConsoleW
KERNEL32.dll::SetConsoleCtrlHandler
KERNEL32.dll::SetStdHandle
KERNEL32.dll::AssignProcessToJobObject
KERNEL32.dll::GetConsoleMode
KERNEL32.dll::GetConsoleOutputCP
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CopyFileW
KERNEL32.dll::CreateDirectoryW
KERNEL32.dll::CreateFileA
KERNEL32.dll::CreateFileMappingW
KERNEL32.dll::CreateFileW
KERNEL32.dll::DeleteFileW
WIN_BASE_USER_APIRetrieves Account InformationADVAPI32.dll::GetUserNameW
ADVAPI32.dll::LookupPrivilegeValueW
WIN_HTTP_APIUses HTTP servicesWINHTTP.dll::WinHttpAddRequestHeaders
WINHTTP.dll::WinHttpConnect
WINHTTP.dll::WinHttpCrackUrl
WINHTTP.dll::WinHttpGetProxyForUrl
WINHTTP.dll::WinHttpOpen
WINHTTP.dll::WinHttpOpenRequest
WIN_REG_APICan Manipulate Windows RegistryADVAPI32.dll::RegCreateKeyExW
ADVAPI32.dll::RegDeleteKeyExW
ADVAPI32.dll::RegLoadKeyW
ADVAPI32.dll::RegOpenKeyExW
ADVAPI32.dll::RegQueryInfoKeyW
ADVAPI32.dll::RegQueryValueExA
ADVAPI32.dll::RegQueryValueExW
WIN_SVC_APICan Manipulate Windows ServicesADVAPI32.dll::ChangeServiceConfigW
ADVAPI32.dll::CreateServiceW
ADVAPI32.dll::OpenSCManagerW
ADVAPI32.dll::OpenServiceW
ADVAPI32.dll::QueryServiceConfigW
WIN_USER_APIPerforms GUI ActionsUSER32.dll::PeekMessageW
USER32.dll::CreateWindowExW

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