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Windows Analysis Report
H6VMxCA4Pn.exe

Overview

General Information

Sample name:	H6VMxCA4Pn.exe renamed because original name is a hash value
Original sample name:	871b245bd87dbb3ed064e9e42522dcb7dee8d80b9463f8ee4bcf9da184dd5e87.exe
Analysis ID:	1675331
MD5:	466a8e120c75770ecbc0c73f0439d304
SHA1:	fd7a5b83989667fca0a7e8c39ea46f0fbafc4bd3
SHA256:	871b245bd87dbb3ed064e9e42522dcb7dee8d80b9463f8ee4bcf9da184dd5e87
Tags:	cactusexeransomwareuser-TheRavenFile
Infos:

Detection

Babuk

Score:	64
Range:	0 - 100
Confidence:	100%

Signatures

Multi AV Scanner detection for submitted file

Yara detected Babuk Ransomware

Deletes shadow drive data (may be related to ransomware)

Found Tor onion address

May use bcdedit to modify the Windows boot settings

PE file contains more sections than normal

PE file contains sections with non-standard names

Program does not show much activity (idle)

Classification

Process Tree

System is w10x64

H6VMxCA4Pn.exe (PID: 7352 cmdline: "C:\Users\user\Desktop\H6VMxCA4Pn.exe" MD5: 466A8E120C75770ECBC0C73F0439D304)

conhost.exe (PID: 7360 cmdline: C:\Windows\system32\conhost.exe 0xffffffff -ForceV1 MD5: 0D698AF330FD17BEE3BF90011D49251D)

cleanup

Malware Threat Intel

Provided by

Name	Description	Attribution	Blogpost URLs	Link
Babuk	Babuk Ransomware is a sophisticated ransomware compiled for several platforms. Windows and ARM for Linux are the most used compiled versions, but ESX and a 32bit old PE executable were observed over time. as well It uses an Elliptic Curve Algorithm (Montgomery Algorithm) to build the encryption keys.	No Attribution	http://chuongdong.com/reverse%20engineering/2021/01/03/BabukRansomware/ https://blog.cyble.com/2022/05/06/rebranded-babuk-ransomware-in-action-darkangels-ransomware-performs-targeted-attack/ https://blog.morphisec.com/babuk-ransomware-variant-major-attack https://blog.talosintelligence.com/2021/11/babuk-exploits-exchange.html https://chuongdong.com/reverse%20engineering/2021/01/16/BabukRansomware-v3/	https://malpedia.caad.fkie.fraunhofer.de/details/win.babuk

Yara Signatures

Memory Dumps

Source	Rule	Description	Author
00000000.00000000.1184264498.00007FF6F355D000.00000002.00000001.01000000.00000003.sdmp	JoeSecurity_babuk	Yara detected Babuk Ransomware	Joe Security
00000000.00000002.1188360968.00007FF6F355D000.00000002.00000001.01000000.00000003.sdmp	JoeSecurity_babuk	Yara detected Babuk Ransomware	Joe Security
Process Memory Space: H6VMxCA4Pn.exe PID: 7352	JoeSecurity_babuk	Yara detected Babuk Ransomware	Joe Security

Unpacked PEs

Source	Rule	Description	Author	Strings
0.2.H6VMxCA4Pn.exe.7ff6f3150000.0.unpack	JoeSecurity_babuk	Yara detected Babuk Ransomware	Joe Security
0.0.H6VMxCA4Pn.exe.7ff6f3150000.0.unpack	JoeSecurity_babuk	Yara detected Babuk Ransomware	Joe Security

Binary or memory string: %d.%m.%Y %XC:\ProgramData\critical.logsteam.exethebat.exemsftesql.exesqlagent.exesqlbrowser.exesqlwriter.exeoracle.exeocssd.exedbsnmp.exesynctime.exexfssvccon.exesqlservr.exemydesktopservice.exeocautoupds.exeagntsvc.exeencsvc.exefirefoxconfig.exetbirdconfig.exemydesktopqos.exeocomm.exemysqld.exemysqld-nt.exemysqld-opt.exedbeng5o.exesqbcoreservice.exeexcel.exeinfopath.exemsaccess.exemspub.exeonenote.exeoutlook.exepowerpnt.exethunderbird.exevisio.exewinword.exewordpad.exesql.exeagntsvc.exeisqlplussvc.exeencsvc.exefirefox.exedbeng50.exenotepad.exephonesvcveeammemtassqlbackupvsssophossvc$mepocsmsexchangegxvssgxblrgxfwdgxcvdgxcimgrmssqlfdlaunchermssqlserversqlserveragentmssqlserverolapservicessastelemetrysqlbrowsersqltelemetrysqlpbdmssqlpbenginesqlwritervssadmin delete shadows /all /quietC:\Windows\System32\vssadmin.exeWMIC shadowcopy deleteC:\Windows\System32\wbem\WMIC.exebcdedit /set {default} bootstatuspolicy ignoreallfailuresC:\Windows\System32\bcdedit.exebcdedit /set {default} recoveryenabled noIPC$ADMIN$basic_string: construction from null is not valid

Source: all processes

Thread injection, dropped files, key value created, disk infection and DNS query: no activity detected

Source: H6VMxCA4Pn.exe	Binary or memory string: spoolsv.exeexplorer.exesihost.exefontdrvhost.execmd.exedwm.exeLogonUI.exeSearchUI.exelsass.execsrss.exesmss.exewinlogon.exeservices.execonhost.exe$recycle.binsystem volume informationwindowstmptempthumbwinntwindows.~btwindows.oldperflogperflogsbootprogramdatapackagesefiwindowsappsmicrosoftgooglechromewindows defendermicrosoft sharedinternet explorertor browservmware toolsctslckwindows defender advanced threat protectionwindows photo viewercommon filesmicrosoft.netwindows media playerwindows ntwindowspowershellusoprivateusosharedpackage cacheexedlllnksysmsibatc:C:\\.txt._-Information.readme.txtpagefile.sysdesktop.inicritical.logupdate.logntuser.datntuser.log7\\?\\\\\?\UNC\\rn.batbasic_string: construction from null is not validZDKdFHsIMgOf
Source: H6VMxCA4Pn.exe	Binary or memory string: vmware tools

Source: C:\Users\user\Desktop\H6VMxCA4Pn.exe

Process information queried: ProcessInformation

Jump to behavior

Source: all processes

Thread injection, dropped files, key value created, disk infection and DNS query: no activity detected

Mitre Att&ck Matrix

Reconnaissance	Resource Development	Initial Access	Execution	Persistence	Privilege Escalation	Defense Evasion	Credential Access	Discovery	Lateral Movement	Collection	Command and Control	Exfiltration	Impact
Gather Victim Identity Information	Acquire Infrastructure	Valid Accounts	2 Command and Scripting Interpreter	1 Bootkit	1 Process Injection	1 Bootkit	OS Credential Dumping	1 Security Software Discovery	Remote Services	Data from Local System	1 Proxy	Exfiltration Over Other Network Medium	Abuse Accessibility Features
Credentials	Domains	Default Accounts	Scheduled Task/Job	1 DLL Side-Loading	1 DLL Side-Loading	1 Process Injection	LSASS Memory	1 Process Discovery	Remote Desktop Protocol	Data from Removable Media	Junk Data	Exfiltration Over Bluetooth	Network Denial of Service
Email Addresses	DNS Server	Domain Accounts	At	Logon Script (Windows)	Logon Script (Windows)	1 DLL Side-Loading	Security Account Manager	1 System Information Discovery	SMB/Windows Admin Shares	Data from Network Shared Drive	Steganography	Automated Exfiltration	Data Encrypted for Impact
Employee Names	Virtual Private Server	Local Accounts	Cron	Login Hook	Login Hook	1 File Deletion	NTDS	System Network Configuration Discovery	Distributed Component Object Model	Input Capture	Protocol Impersonation	Traffic Duplication	Data Destruction

Behavior Graph

Hide Legend

Legend:

Process
Signature
Created File
DNS/IP Info
Is Dropped
Is Windows Process
Number of created Registry Values
Number of created Files
Visual Basic
Delphi
Java
.Net C# or VB.NET
C, C++ or other language
Is malicious
Internet

Source	Detection	Scanner	Label	Link
H6VMxCA4Pn.exe	65%	Virustotal		Browse
H6VMxCA4Pn.exe	69%	ReversingLabs	Win64.Ransomware.Kaktos

Source	Detection	Scanner	Label	Link
http://webmail.4y5hmtskokip55m2pkeyxvyjemsll5svbv7h5z6iwti4eszb6qw5skqd.onion	0%	Avira URL Cloud	safe

Name	Source	Malicious	Antivirus Detection	Reputation
http://sonarmsng5vzwqezlvtu2iiwwdn3dxkhotftikhowpfjuzg7p3ca5eid.onion/contact/Cactus_Support	H6VMxCA4Pn.exe	false		high
https://cactusbloguuodvqjmnzlwetjlpj6aggc6iocwhuupb47laukux7ckid.onion/In	H6VMxCA4Pn.exe	false		high
https://www.torproject.org/download)	H6VMxCA4Pn.exe	false		high
http://webmail.4y5hmtskokip55m2pkeyxvyjemsll5svbv7h5z6iwti4eszb6qw5skqd.onion	H6VMxCA4Pn.exe	true	Avira URL Cloud: safe	unknown

World Map of Contacted IPs

⊘No contacted IP infos

General Information

Joe Sandbox version:	42.0.0 Malachite
Analysis ID:	1675331
Start date and time:	2025-04-27 05:37:16 +02:00
Joe Sandbox product:	CloudBasic
Overall analysis duration:	0h 4m 19s
Hypervisor based Inspection enabled:	false
Report type:	full
Cookbook file name:	default.jbs
Analysis system description:	Windows 10 x64 22H2 with Office Professional Plus 2019, Chrome 134, Firefox 118, Adobe Reader DC 23, Java 8 Update 381, 7zip 23.01
Number of analysed new started processes analysed:	11
Number of new started drivers analysed:	0
Number of existing processes analysed:	0
Number of existing drivers analysed:	0
Number of injected processes analysed:	0
Technologies:	HCA enabled EGA enabled AMSI enabled
Analysis Mode:	default
Analysis stop reason:	Timeout
Sample name:	H6VMxCA4Pn.exe renamed because original name is a hash value
Original Sample Name:	871b245bd87dbb3ed064e9e42522dcb7dee8d80b9463f8ee4bcf9da184dd5e87.exe
Detection:	MAL
Classification:	mal64.rans.evad.winEXE@2/0@0/0
EGA Information:	Failed
HCA Information:	Failed
Cookbook Comments:	Found application associated with file extension: .exe

Warnings

Exclude process from analysis (whitelisted): MpCmdRun.exe, SIHClient.exe, SgrmBroker.exe, conhost.exe, svchost.exe
Excluded IPs from analysis (whitelisted): 184.29.183.29, 172.202.163.200
Excluded domains from analysis (whitelisted): a-ring-fallback.msedge.net, fs.microsoft.com, slscr.update.microsoft.com, fe3cr.delivery.mp.microsoft.com
Execution Graph export aborted for target H6VMxCA4Pn.exe, PID 7352 because it is empty
Not all processes where analyzed, report is missing behavior information

File type:	PE32+ executable (console) x86-64, for MS Windows
Entropy (8bit):	6.417471372544136
TrID:	Win64 Executable Console (202006/5) 92.65% Win64 Executable (generic) (12005/4) 5.51% Generic Win/DOS Executable (2004/3) 0.92% DOS Executable Generic (2002/1) 0.92% Autodesk FLIC Image File (extensions: flc, fli, cel) (7/3) 0.00%
File name:	H6VMxCA4Pn.exe
File size:	9'301'424 bytes
MD5:	466a8e120c75770ecbc0c73f0439d304
SHA1:	fd7a5b83989667fca0a7e8c39ea46f0fbafc4bd3
SHA256:	871b245bd87dbb3ed064e9e42522dcb7dee8d80b9463f8ee4bcf9da184dd5e87
SHA512:	ebbe62fb8fabc044ed6c6d5ec42a4766d891eff64eb7b67d11e02411eaddc07653d48b41e157e858ea41ee020d78421fc4c06f0c8235df68bbab6d1c93571fae
SSDEEP:	98304:n+FfIxhQ8w+eR3P6R+mze17zynFVyMWMpMeXyoNdtOUHF345hnMXWcegplh:gEiP6RtqNaMeiqdtOUH9
TLSH:	BF964B5365AB0CE9DDD667B492C76336A734FD218A792F3F6604C6302D13AC06E6BB10
File Content Preview:	MZ......................@...............................................!..L.!This program cannot be run in DOS mode....$.......PE..d......g..e.&.....&....(.R@..VS..>.............@..............................j...........`... ............................

File Icon


Icon Hash:	90cececece8e8eb0

Static PE Info

General

Entrypoint:	0x1400013f0
Entrypoint Section:	.text
Digitally signed:	false
Imagebase:	0x140000000
Subsystem:	windows cui
Image File Characteristics:	EXECUTABLE_IMAGE, LINE_NUMS_STRIPPED, LARGE_ADDRESS_AWARE
DLL Characteristics:	HIGH_ENTROPY_VA, DYNAMIC_BASE, NX_COMPAT
Time Stamp:	0x67A31B93 [Wed Feb 5 08:04:35 2025 UTC]
TLS Callbacks:	0x4032d4e0, 0x1, 0x4032d4b0, 0x1, 0x40341a90, 0x1
CLR (.Net) Version:
OS Version Major:	4
OS Version Minor:	0
File Version Major:	4
File Version Minor:	0
Subsystem Version Major:	4
Subsystem Version Minor:	0
Import Hash:	48804626b2034b9fcb4423433f85c971

Entrypoint Preview

Instruction
dec eax
sub esp, 28h
dec eax
mov eax, dword ptr [004C1B95h]
mov dword ptr [eax], 00000000h
call 00007FA4B0B13CBFh
nop
nop
dec eax
add esp, 28h
ret
nop dword ptr [eax]
dec eax
sub esp, 28h
call 00007FA4B0E517A4h
dec eax
cmp eax, 01h
sbb eax, eax
dec eax
add esp, 28h
ret
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
dec eax
lea ecx, dword ptr [00000009h]
jmp 00007FA4B0B13F19h
nop dword ptr [eax+00h]
ret
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
nop
push ebp
dec eax
mov ebp, esp
dec eax
add esp, FFFFFF80h
mov ecx, 00000008h
call 00007FA4B0E51913h
dec eax
mov dword ptr [ebp-08h], eax
dec eax
mov eax, dword ptr [ebp-08h]
inc ecx
mov eax, 00000004h
mov edx, 00000008h
dec eax
mov ecx, eax
dec eax
mov eax, dword ptr [0056F6B1h]
call eax
mov dword ptr [ebp-1Eh], 00000000h
mov word ptr [ebp-1Ah], 0100h
dec eax
lea eax, dword ptr [ebp-1Eh]
dec eax
lea edx, dword ptr [ebp-18h]
dec eax
mov dword ptr [esp+50h], edx
mov dword ptr [esp+48h], 00000000h
mov dword ptr [esp+40h], 00000000h
mov dword ptr [esp+38h], 00000000h
mov dword ptr [esp+30h], 00000000h

Data Directories

Name	Virtual Address	Virtual Size	Is in Section
IMAGE_DIRECTORY_ENTRY_EXPORT	0x0	0x0
IMAGE_DIRECTORY_ENTRY_IMPORT	0x570000	0x2d20	.idata
IMAGE_DIRECTORY_ENTRY_RESOURCE	0x575000	0x4e8	.rsrc
IMAGE_DIRECTORY_ENTRY_EXCEPTION	0x4d9000	0x27abc	.pdata
IMAGE_DIRECTORY_ENTRY_SECURITY	0x0	0x0
IMAGE_DIRECTORY_ENTRY_BASERELOC	0x576000	0x9f84	.reloc
IMAGE_DIRECTORY_ENTRY_DEBUG	0x0	0x0
IMAGE_DIRECTORY_ENTRY_COPYRIGHT	0x0	0x0
IMAGE_DIRECTORY_ENTRY_GLOBALPTR	0x0	0x0
IMAGE_DIRECTORY_ENTRY_TLS	0x4c10a0	0x28	.rdata
IMAGE_DIRECTORY_ENTRY_LOAD_CONFIG	0x0	0x0
IMAGE_DIRECTORY_ENTRY_BOUND_IMPORT	0x0	0x0
IMAGE_DIRECTORY_ENTRY_IAT	0x0	0x0
IMAGE_DIRECTORY_ENTRY_DELAY_IMPORT	0x0	0x0
IMAGE_DIRECTORY_ENTRY_COM_DESCRIPTOR	0x0	0x0
IMAGE_DIRECTORY_ENTRY_RESERVED	0x0	0x0

Sections

Name	Virtual Address	Virtual Size	Raw Size	MD5	Xored PE	ZLIB Complexity	File Type	Entropy	Characteristics
.text	0x1000	0x4051f0	0x405200	440705eff85c3bda8bfc14157e75fbf4	unknown	unknown	unknown	unknown	IMAGE_SCN_CNT_CODE, IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ
.data	0x407000	0x51e0	0x5200	73af51cc3739f2c3f0dfb50ea58aade1	False	0.13943407012195122	data	2.2188756964962106	IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE
.rdata	0x40d000	0xcb700	0xcb800	11254cdcf40a54b2e9532121127f2449	False	0.2905381411240786	data	5.089672235716194	IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ
.pdata	0x4d9000	0x27abc	0x27c00	f1c14e7c1264031e90ca35d34d40f739	False	0.5108404579402516	data	6.265608697581868	IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ
.xdata	0x501000	0x2a4ec	0x2a600	a5b318a574255623eee27921d197f01f	False	0.17778046644542772	data	4.679106316051192	IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ
.bss	0x52c000	0x43d90	0x0	d41d8cd98f00b204e9800998ecf8427e	False	0	empty	0.0	IMAGE_SCN_CNT_UNINITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE
.idata	0x570000	0x2d20	0x2e00	45eca9c5745836ab6bf5c8a728ac0ff8	False	0.24150815217391305	data	4.019757774332753	IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE
.CRT	0x573000	0x68	0x200	1e7a582f0adf512a237e416b59bf7320	False	0.078125	data	0.41055857183492983	IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE
.tls	0x574000	0x10	0x200	bf619eac0cdf3f68d496ea9344137e8b	False	0.02734375	data	0.0	IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE
.rsrc	0x575000	0x4e8	0x600	030ae0ffd84f4d5fb35bebea560e68c7	False	0.3333333333333333	data	4.780597815738071	IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE
.reloc	0x576000	0x9f84	0xa000	27bfddca032fa717ae92280a0c5ee036	False	0.2821044921875	data	5.451010052213658	IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_DISCARDABLE, IMAGE_SCN_MEM_READ
/4	0x580000	0x2480	0x2600	4d4328f90a39c6229ef29c32e68ede66	False	0.2235814144736842	data	2.4302295398813785	IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_DISCARDABLE, IMAGE_SCN_MEM_READ
/19	0x583000	0xd13a2	0xd1400	53e5847e2c6e27bdae10bda4247dd7d1	False	0.29473636312724016	data	5.990824587660499	IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_DISCARDABLE, IMAGE_SCN_MEM_READ
/31	0x655000	0xc67f	0xc800	7e215954acbf12192f47b807559b13ad	False	0.23375	data	4.948696830329289	IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_DISCARDABLE, IMAGE_SCN_MEM_READ
/45	0x662000	0x1b0de	0x1b200	56ac9802930ed2e2265816dbe76e5de8	False	0.4290214573732719	data	5.240525868884352	IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_DISCARDABLE, IMAGE_SCN_MEM_READ
/57	0x67e000	0x8450	0x8600	99688471e59c08db44c95d893b76c6d2	False	0.20157999067164178	data	4.562752306631266	IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_DISCARDABLE, IMAGE_SCN_MEM_READ
/70	0x687000	0x3028	0x3200	7bae741bf9ee07263757d3e91680566c	False	0.254921875	data	4.510426403615046	IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_DISCARDABLE, IMAGE_SCN_MEM_READ
/81	0x68b000	0x6e43	0x7000	cc1d7c67863cde6f3c8504ca31b9d1a3	False	0.11324637276785714	data	5.017648937189938	IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_DISCARDABLE, IMAGE_SCN_MEM_READ
/97	0x692000	0x14aab	0x14c00	6423425a63adf7c25c5e1397587b3fd5	False	0.5042239269578314	data	5.968226727632548	IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_DISCARDABLE, IMAGE_SCN_MEM_READ
/113	0x6a7000	0x1cd1	0x1e00	974a80b66ebfffcfddb96a0ec9719d50	False	0.5291666666666667	data	5.381567916499713	IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_DISCARDABLE, IMAGE_SCN_MEM_READ

Resources

Name	RVA	Size	Type	Language	Country	ZLIB Complexity
RT_MANIFEST	0x575058	0x48f	XML 1.0 document, ASCII text			0.40102827763496146

Imports

DLL	Import
KERNEL32.DLL	AcquireSRWLockExclusive, AcquireSRWLockShared, AddVectoredExceptionHandler, CloseHandle, ConvertFiberToThread, ConvertThreadToFiberEx, CopyFileW, CreateDirectoryW, CreateEventA, CreateFiberEx, CreateFileW, CreateHardLinkW, CreateProcessW, CreateSemaphoreA, CreateToolhelp32Snapshot, DeleteCriticalSection, DeleteFiber, DeleteFileW, DuplicateHandle, EnterCriticalSection, FindClose, FindFirstFileW, FindFirstVolumeW, FindNextFileW, FindNextVolumeW, FindVolumeClose, FormatMessageA, FormatMessageW, FreeLibrary, GetACP, GetConsoleMode, GetConsoleWindow, GetCurrentProcess, GetCurrentProcessId, GetCurrentThread, GetCurrentThreadId, GetDiskFreeSpaceExW, GetDriveTypeW, GetEnvironmentVariableW, GetFileAttributesW, GetFileInformationByHandle, GetFileSizeEx, GetFileType, GetFullPathNameW, GetHandleInformation, GetLastError, GetLogicalDriveStringsW, GetModuleFileNameA, GetModuleFileNameW, GetModuleHandleExA, GetModuleHandleExW, GetModuleHandleW, GetProcAddress, GetProcessAffinityMask, GetProcessHeap, GetProcessId, GetStdHandle, GetSystemDirectoryA, GetSystemInfo, GetSystemTimeAsFileTime, GetTempPathW, GetThreadContext, GetThreadPriority, GetTickCount64, GetVersion, GetVolumeInformationW, HeapAlloc, HeapFree, InitializeCriticalSection, InitializeSRWLock, IsDBCSLeadByteEx, IsDebuggerPresent, IsProcessorFeaturePresent, K32GetProcessImageFileNameW, LeaveCriticalSection, LoadLibraryA, LoadLibraryW, LocalFree, MoveFileExW, MultiByteToWideChar, OpenProcess, OutputDebugStringA, Process32NextW, RaiseException, ReadConsoleA, ReadConsoleW, ReleaseSRWLockExclusive, ReleaseSRWLockShared, ReleaseSemaphore, RemoveDirectoryW, RemoveVectoredExceptionHandler, ResetEvent, ResumeThread, RtlCaptureContext, RtlLookupFunctionEntry, RtlUnwindEx, RtlVirtualUnwind, SetConsoleMode, SetEndOfFile, SetEvent, SetFileAttributesW, SetFilePointer, SetLastError, SetProcessAffinityMask, SetThreadContext, SetThreadPriority, SetUnhandledExceptionFilter, Sleep, SuspendThread, SwitchToFiber, TerminateProcess, TlsAlloc, TlsFree, TlsGetValue, TlsSetValue, TryEnterCriticalSection, VirtualAlloc, VirtualFree, VirtualLock, VirtualProtect, VirtualQuery, WaitForMultipleObjects, WaitForSingleObject, WideCharToMultiByte, WriteFile
ADVAPI32.dll	AddAccessDeniedAce, AllocateAndInitializeSid, CloseServiceHandle, ControlService, CryptAcquireContextW, CryptGenRandom, CryptReleaseContext, DeregisterEventSource, InitializeAcl, OpenSCManagerA, OpenServiceA, RegisterEventSourceW, ReportEventW, SetSecurityInfo
msvcrt.dll	__C_specific_handler, ___lc_codepage_func, ___mb_cur_max_func, __getmainargs, __initenv, __iob_func, __set_app_type, __setusermatherr, _amsg_exit, _beginthreadex, _cexit, _close, _commode, _endthreadex, _errno, _exit, _fdopen, _fileno, _findclose, _fileno, _fmode, _fstat64, _get_osfhandle, _gmtime64, _initterm, _localtime64, _lock, _lseeki64, _onexit, _read, _setjmp, _setmode, _stat64, _strdup, _strdup, _strtoi64, _strtoui64, _telli64, _time64, _ultoa, _unlock, _vsnprintf, _vsnwprintf, _wchdir, _wchmod, _wfindfirst64, _wfindnext64, _wfopen, _wfullpath, _wgetcwd, _wmkdir, _wopen, _wremove, _wrename, _write, _wstat64, _wsystem, _wutime64, abort, atoi, calloc, clock, exit, fclose, feof, ferror, fflush, fgets, fopen, fprintf, fputc, fputs, fputwc, fread, free, fwprintf, fseek, ftell, fwrite, getc, getenv, isspace, iswctype, isxdigit, localeconv, longjmp, malloc, memchr, memcmp, memcpy, memmove, memset, printf, qsort, raise, rand, realloc, remove, setlocale, setvbuf, signal, sprintf, srand, strcat, strchr, strcmp, strcoll, strcpy, strcspn, strerror, strftime, strlen, strncmp, strncpy, strrchr, strspn, strstr, strtol, strtoul, strxfrm, tolower, towlower, towupper, ungetc, vfprintf, wcscat, wcscmp, wcscoll, wcscpy, wcsftime, wcslen, wcsncmp, wcsstr, wcstol, wcstombs, wcsxfrm
NETAPI32.dll	NetApiBufferFree, NetShareDel, NetShareEnum
RstrtMgr.DLL	RmEndSession, RmGetList, RmRegisterResources, RmShutdown, RmStartSession
SHELL32.dll	IsUserAnAdmin, StrStrIW
USER32.dll	GetProcessWindowStation, GetUserObjectInformationW, MessageBoxW, ShowWindow
WS2_32.dll	gethostbyaddr, getservbyname, getservbyport, htonl, htons, inet_addr, inet_ntoa
WSOCK32.dll	WSACleanup, WSAGetLastError, WSASetLastError, WSAStartup, accept, bind, closesocket, connect, gethostbyname, getsockname, getsockopt, ioctlsocket, listen, ntohs, recv, select, send, setsockopt, shutdown, socket

• H6VMxCA4Pn.exe
• conhost.exe

Click to jump to process

Click to jump to process

Behavior

• H6VMxCA4Pn.exe
• conhost.exe

Click to jump to process

Target ID:	0
Start time:	23:38:14
Start date:	26/04/2025
Path:	C:\Users\user\Desktop\H6VMxCA4Pn.exe
Wow64 process (32bit):	false
Commandline:	"C:\Users\user\Desktop\H6VMxCA4Pn.exe"
Imagebase:	0x7ff6f3150000
File size:	9'301'424 bytes
MD5 hash:	466A8E120C75770ECBC0C73F0439D304
Has elevated privileges:	true
Has administrator privileges:	true
Programmed in:	C, C++ or other language
Yara matches:	Rule: JoeSecurity_babuk, Description: Yara detected Babuk Ransomware, Source: 00000000.00000000.1184264498.00007FF6F355D000.00000002.00000001.01000000.00000003.sdmp, Author: Joe Security Rule: JoeSecurity_babuk, Description: Yara detected Babuk Ransomware, Source: 00000000.00000002.1188360968.00007FF6F355D000.00000002.00000001.01000000.00000003.sdmp, Author: Joe Security
Reputation:	low
Has exited:	true

Show Windows behavior

Target ID:	1
Start time:	23:38:14
Start date:	26/04/2025
Path:	C:\Windows\System32\conhost.exe
Wow64 process (32bit):	false
Commandline:	C:\Windows\system32\conhost.exe 0xffffffff -ForceV1
Imagebase:	0x7ff62fc20000
File size:	862'208 bytes
MD5 hash:	0D698AF330FD17BEE3BF90011D49251D
Has elevated privileges:	true
Has administrator privileges:	true
Programmed in:	C, C++ or other language
Reputation:	high
Has exited:	true

Show Windows behavior

Function 00007FF6F31513F0 Relevance: .0, Instructions: 4COMMON

Download Yara Rule

Memory Dump Source

Source File: 00000000.00000002.1188069066.00007FF6F3151000.00000020.00000001.01000000.00000003.sdmp, Offset: 00007FF6F3150000, based on PE: true

Associated: 00000000.00000002.1188054911.00007FF6F3150000.00000002.00000001.01000000.00000003.sdmpDownload File
Associated: 00000000.00000002.1188300801.00007FF6F3557000.00000004.00000001.01000000.00000003.sdmpDownload File
Associated: 00000000.00000002.1188317536.00007FF6F3558000.00000008.00000001.01000000.00000003.sdmpDownload File
Associated: 00000000.00000002.1188331180.00007FF6F355A000.00000004.00000001.01000000.00000003.sdmpDownload File
Associated: 00000000.00000002.1188347420.00007FF6F355B000.00000008.00000001.01000000.00000003.sdmpDownload File
Associated: 00000000.00000002.1188360968.00007FF6F355D000.00000002.00000001.01000000.00000003.sdmpDownload File
Associated: 00000000.00000002.1188435842.00007FF6F367C000.00000004.00000001.01000000.00000003.sdmpDownload File
Associated: 00000000.00000002.1188435842.00007FF6F36C0000.00000004.00000001.01000000.00000003.sdmpDownload File
Associated: 00000000.00000002.1188491498.00007FF6F36C5000.00000008.00000001.01000000.00000003.sdmpDownload File
Associated: 00000000.00000002.1188504411.00007FF6F36C6000.00000002.00000001.01000000.00000003.sdmpDownload File
Associated: 00000000.00000002.1188504411.00007FF6F37DB000.00000002.00000001.01000000.00000003.sdmpDownload File

Joe Sandbox IDA Plugin

Snapshot File: hcaresult_0_2_7ff6f3150000_H6VMxCA4Pn.jbxd

Yara matches

Similarity

API ID:
String ID:
API String ID:
Opcode ID: 7b759f3f5ec11b98a7795379ba3916615fb85d5804f5df92d5a943883ac572a7
Instruction ID: 5d7c9d3318e78ae079ad32ca680b58d8385dde306f32fd19d19e667027105118
Opcode Fuzzy Hash: 7b759f3f5ec11b98a7795379ba3916615fb85d5804f5df92d5a943883ac572a7
Instruction Fuzzy Hash: 13B01230D0820598FB417F25D88331C32206B04B45F404030D82C6B3D5DF3C50104710

Source: H6VMxCA4Pn.exe	Virustotal: Detection: 65%			Perma Link
Source: H6VMxCA4Pn.exe	ReversingLabs: Detection: 69%

Source: H6VMxCA4Pn.exe	String found in binary or memory: http://webmail.4y5hmtskokip55m2pkeyxvyjemsll5svbv7h5z6iwti4eszb6qw5skqd.onion
Source: H6VMxCA4Pn.exe	String found in binary or memory: http://sonarmsng5vzwqezlvtu2iiwwdn3dxkhotftikhowpfjuzg7p3ca5eid.onion/contact/Cactus_Support
Source: H6VMxCA4Pn.exe, 00000000.00000000.1184264498.00007FF6F355D000.00000002.00000001.01000000.00000003.sdmp	String found in binary or memory: Do not interrupt the encryption process, don't stop or reboot your machines until the encryption is complete. Otherwise the data may be corrupted.In addition to the encrypted infrastructure, we have downloaded a lot of confidential information from your systems. The publication of these documents may cause the termination of your commercial activities, contracts with your clients and partners, and multiple lawsuits.If you ignore this warning and do not contact us, your sensitive data will be posted on our blog: https://cactusbloguuodvqjmnzlwetjlpj6aggc6iocwhuupb47laukux7ckid.onion/In your best interest is to avoid contacting law enforcement and data recovery companies. They can't help you with the recovery, will cause more problems and expenses, and delay the return to normal work significantly.Besides, if you contact the police we will immediately publish your data.We offer the best solution to the problem, to receive our decryption software and prevent disclosure of your sensitive information contact us directly.A quick recovery is very important to keep your business running at full capacity and minimize losses. This is why you need to begin negotiations as soon as possible. By the way, if you don't contact us within 5 days, we will start publishing your data.
Source: H6VMxCA4Pn.exe	String found in binary or memory: Do not interrupt the encryption process, don't stop or reboot your machines until the encryption is complete. Otherwise the data may be corrupted.In addition to the encrypted infrastructure, we have downloaded a lot of confidential information from your systems. The publication of these documents may cause the termination of your commercial activities, contracts with your clients and partners, and multiple lawsuits.If you ignore this warning and do not contact us, your sensitive data will be posted on our blog: https://cactusbloguuodvqjmnzlwetjlpj6aggc6iocwhuupb47laukux7ckid.onion/In your best interest is to avoid contacting law enforcement and data recovery companies. They can't help you with the recovery, will cause more problems and expenses, and delay the return to normal work significantly.Besides, if you contact the police we will immediately publish your data.We offer the best solution to the problem, to receive our decryption software and prevent disclosure of your sensitive information contact us directly.A quick recovery is very important to keep your business running at full capacity and minimize losses. This is why you need to begin negotiations as soon as possible. By the way, if you don't contact us within 5 days, we will start publishing your data.

Source: Yara match	File source: 0.2.H6VMxCA4Pn.exe.7ff6f3150000.0.unpack, type: UNPACKEDPE
Source: Yara match	File source: 0.0.H6VMxCA4Pn.exe.7ff6f3150000.0.unpack, type: UNPACKEDPE
Source: Yara match	File source: 00000000.00000000.1184264498.00007FF6F355D000.00000002.00000001.01000000.00000003.sdmp, type: MEMORY
Source: Yara match	File source: 00000000.00000002.1188360968.00007FF6F355D000.00000002.00000001.01000000.00000003.sdmp, type: MEMORY
Source: Yara match	File source: Process Memory Space: H6VMxCA4Pn.exe PID: 7352, type: MEMORYSTR

Source: unknown	Process created: C:\Users\user\Desktop\H6VMxCA4Pn.exe "C:\Users\user\Desktop\H6VMxCA4Pn.exe"
Source: C:\Users\user\Desktop\H6VMxCA4Pn.exe	Process created: C:\Windows\System32\conhost.exe C:\Windows\system32\conhost.exe 0xffffffff -ForceV1

Description:	Adversaries may abuse command and script interpreters to execute commands, scripts, or binaries. These interfaces and languages provide ways of interacting with computer systems and are a common feature across many different platforms. Most systems come with some built-in command-line interface and scripting capabilities, for example, macOS and Linux distributions include some flavor of Unix Shell while Windows installations include the Windows Command Shell and PowerShell .
Tactics:	Execution
Data Sources:	Command: Command Execution, Module: Module Load, Process: Process Creation, Process: Process Metadata, Script: Script Execution
Platforms:	Azure AD, Google Workspace, IaaS, Linux, macOS, Network, Office 365, Windows
Url:	Open detailed description by Mitre

Source: H6VMxCA4Pn.exe	Binary or memory string: vssadmin delete shadows /all /quiet
Source: H6VMxCA4Pn.exe, 00000000.00000000.1184264498.00007FF6F355D000.00000002.00000001.01000000.00000003.sdmp	Binary or memory string: %d.%m.%Y %XC:\ProgramData\critical.logsteam.exethebat.exemsftesql.exesqlagent.exesqlbrowser.exesqlwriter.exeoracle.exeocssd.exedbsnmp.exesynctime.exexfssvccon.exesqlservr.exemydesktopservice.exeocautoupds.exeagntsvc.exeencsvc.exefirefoxconfig.exetbirdconfig.exemydesktopqos.exeocomm.exemysqld.exemysqld-nt.exemysqld-opt.exedbeng5o.exesqbcoreservice.exeexcel.exeinfopath.exemsaccess.exemspub.exeonenote.exeoutlook.exepowerpnt.exethunderbird.exevisio.exewinword.exewordpad.exesql.exeagntsvc.exeisqlplussvc.exeencsvc.exefirefox.exedbeng50.exenotepad.exephonesvcveeammemtassqlbackupvsssophossvc$mepocsmsexchangegxvssgxblrgxfwdgxcvdgxcimgrmssqlfdlaunchermssqlserversqlserveragentmssqlserverolapservicessastelemetrysqlbrowsersqltelemetrysqlpbdmssqlpbenginesqlwritervssadmin delete shadows /all /quietC:\Windows\System32\vssadmin.exeWMIC shadowcopy deleteC:\Windows\System32\wbem\WMIC.exebcdedit /set {default} bootstatuspolicy ignoreallfailuresC:\Windows\System32\bcdedit.exebcdedit /set {default} recoveryenabled noIPC$ADMIN$basic_string: construction from null is not valid
Source: H6VMxCA4Pn.exe	Binary or memory string: %d.%m.%Y %XC:\ProgramData\critical.logsteam.exethebat.exemsftesql.exesqlagent.exesqlbrowser.exesqlwriter.exeoracle.exeocssd.exedbsnmp.exesynctime.exexfssvccon.exesqlservr.exemydesktopservice.exeocautoupds.exeagntsvc.exeencsvc.exefirefoxconfig.exetbirdconfig.exemydesktopqos.exeocomm.exemysqld.exemysqld-nt.exemysqld-opt.exedbeng5o.exesqbcoreservice.exeexcel.exeinfopath.exemsaccess.exemspub.exeonenote.exeoutlook.exepowerpnt.exethunderbird.exevisio.exewinword.exewordpad.exesql.exeagntsvc.exeisqlplussvc.exeencsvc.exefirefox.exedbeng50.exenotepad.exephonesvcveeammemtassqlbackupvsssophossvc$mepocsmsexchangegxvssgxblrgxfwdgxcvdgxcimgrmssqlfdlaunchermssqlserversqlserveragentmssqlserverolapservicessastelemetrysqlbrowsersqltelemetrysqlpbdmssqlpbenginesqlwritervssadmin delete shadows /all /quietC:\Windows\System32\vssadmin.exeWMIC shadowcopy deleteC:\Windows\System32\wbem\WMIC.exebcdedit /set {default} bootstatuspolicy ignoreallfailuresC:\Windows\System32\bcdedit.exebcdedit /set {default} recoveryenabled noIPC$ADMIN$basic_string: construction from null is not valid

Source: H6VMxCA4Pn.exe	String found in binary or memory: set-addPolicy
Source: H6VMxCA4Pn.exe	String found in binary or memory: id-cmc-addExtensions
Source: H6VMxCA4Pn.exe	String found in binary or memory: id-cmc-addExtensions
Source: H6VMxCA4Pn.exe	String found in binary or memory: set-addPolicy

Source: C:\Users\user\Desktop\H6VMxCA4Pn.exe	Section loaded: netapi32.dll	Jump to behavior
Source: C:\Users\user\Desktop\H6VMxCA4Pn.exe	Section loaded: rstrtmgr.dll	Jump to behavior
Source: C:\Users\user\Desktop\H6VMxCA4Pn.exe	Section loaded: wsock32.dll	Jump to behavior
Source: C:\Users\user\Desktop\H6VMxCA4Pn.exe	Section loaded: ncrypt.dll	Jump to behavior
Source: C:\Users\user\Desktop\H6VMxCA4Pn.exe	Section loaded: netutils.dll	Jump to behavior
Source: C:\Users\user\Desktop\H6VMxCA4Pn.exe	Section loaded: srvcli.dll	Jump to behavior
Source: C:\Users\user\Desktop\H6VMxCA4Pn.exe	Section loaded: ntasn1.dll	Jump to behavior
Source: C:\Users\user\Desktop\H6VMxCA4Pn.exe	Section loaded: cryptbase.dll	Jump to behavior
Source: C:\Users\user\Desktop\H6VMxCA4Pn.exe	Section loaded: ntmarta.dll	Jump to behavior

Source: H6VMxCA4Pn.exe	Static PE information: section name: .xdata
Source: H6VMxCA4Pn.exe	Static PE information: section name: /4
Source: H6VMxCA4Pn.exe	Static PE information: section name: /19
Source: H6VMxCA4Pn.exe	Static PE information: section name: /31
Source: H6VMxCA4Pn.exe	Static PE information: section name: /45
Source: H6VMxCA4Pn.exe	Static PE information: section name: /57
Source: H6VMxCA4Pn.exe	Static PE information: section name: /70
Source: H6VMxCA4Pn.exe	Static PE information: section name: /81
Source: H6VMxCA4Pn.exe	Static PE information: section name: /97
Source: H6VMxCA4Pn.exe	Static PE information: section name: /113

Description:	Adversaries may use bootkits to persist on systems. Bootkits reside at a layer below the operating system and may make it difficult to perform full remediation unless an organization suspects one was used and can act accordingly.
Tactics:	Defense Evasion, Persistence
Data Sources:	Drive: Drive Modification
Platforms:	Linux, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may execute their own malicious payloads by side-loading DLLs. Similar to DLL Search Order Hijacking , side-loading involves hijacking which DLL a program loads. But rather than just planting the DLL within the search order of a program then waiting for the victim application to be invoked, adversaries may directly side-load their payloads by planting then invoking a legitimate application that executes their payload(s).
Tactics:	Defense Evasion, Persistence, Privilege Escalation
Data Sources:	File: File Creation, File: File Modification, Module: Module Load, Process: Process Creation
Platforms:	Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may inject code into processes in order to evade process-based defenses as well as possibly elevate privileges. Process injection is a method of executing arbitrary code in the address space of a separate live process. Running code in the context of another process may allow access to the process's memory, system/network resources, and possibly elevated privileges. Execution via process injection may also evade detection from security products since the execution is masked under a legitimate process.
Tactics:	Defense Evasion, Privilege Escalation
Data Sources:	File: File Metadata, File: File Modification, Module: Module Load, Process: OS API Execution, Process: Process Access, Process: Process Metadata, Process: Process Modification
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may delete files left behind by the actions of their intrusion activity. Malware, tools, or other non-native files dropped or created on a system by an adversary (ex: Ingress Tool Transfer ) may leave traces to indicate to what was done within a network and how. Removal of these files can occur during an intrusion, or as part of a post-intrusion process to minimize the adversary's footprint.
Tactics:	Defense Evasion
Data Sources:	Command: Command Execution, File: File Deletion
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may attempt to get a listing of security software, configurations, defensive tools, and sensors that are installed on a system or in a cloud environment. This may include things such as firewall rules and anti-virus. Adversaries may use the information from Security Software Discovery during automated discovery to shape follow-on behaviors, including whether or not the adversary fully infects the target and/or attempts specific actions.
Tactics:	Discovery
Data Sources:	Command: Command Execution, Firewall: Firewall Enumeration, Firewall: Firewall Metadata, Process: OS API Execution, Process: Process Creation
Platforms:	Azure AD, Google Workspace, IaaS, Linux, macOS, Office 365, SaaS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may attempt to get information about running processes on a system. Information obtained could be used to gain an understanding of common software/applications running on systems within the network. Adversaries may use the information from Process Discovery during automated discovery to shape follow-on behaviors, including whether or not the adversary fully infects the target and/or attempts specific actions.
Tactics:	Discovery
Data Sources:	Command: Command Execution, Process: OS API Execution, Process: Process Creation
Platforms:	Linux, macOS, Network, Windows
Url:	Open detailed description by Mitre

Description:	An adversary may attempt to get detailed information about the operating system and hardware, including version, patches, hotfixes, service packs, and architecture. Adversaries may use the information from System Information Discovery during automated discovery to shape follow-on behaviors, including whether or not the adversary fully infects the target and/or attempts specific actions.
Tactics:	Discovery
Data Sources:	Command: Command Execution, Process: OS API Execution, Process: Process Creation
Platforms:	IaaS, Linux, macOS, Network, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may use a connection proxy to direct network traffic between systems or act as an intermediary for network communications to a command and control server to avoid direct connections to their infrastructure. Many tools exist that enable traffic redirection through proxies or port redirection, including HTRAN , ZXProxy, and ZXPortMap. Adversaries use these types of proxies to manage command and control communications, reduce the number of simultaneous outbound network connections, provide resiliency in the face of connection loss, or to ride over existing trusted communications paths between victims to avoid suspicion. Adversaries may chain together multiple proxies to further disguise the source of malicious traffic.
Tactics:	Command and Control
Data Sources:	Network Traffic: Network Connection Creation, Network Traffic: Network Traffic Content, Network Traffic: Network Traffic Flow
Platforms:	Linux, macOS, Network, Windows
Url:	Open detailed description by Mitre

Behavior Section

Behavior Chronological

Disassembly

Uncategorized

Graph

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Warning!

Windows Analysis Report H6VMxCA4Pn.exe

Overview

General Information

Detection

Signatures

Classification

Process Tree

Malware Threat Intel

Malware Configuration

Yara Signatures

Memory Dumps

Unpacked PEs

Sigma Signatures

Suricata Signatures

Joe Sandbox Signatures

AV Detection

Compliance

Networking

Spam, unwanted Advertisements and Ransom Demands

System Summary

Data Obfuscation

Persistence and Installation Behavior

Malware Analysis System Evasion

Anti Debugging

Mitre Att&ck Matrix

Behavior Graph

Screenshots

Thumbnails

Antivirus, Machine Learning and Genetic Malware Detection

Initial Sample

Dropped Files

Unpacked PE Files

Domains

URLs

Domains and IPs

Contacted Domains

URLs from Memory and Binaries

World Map of Contacted IPs

General Information

Warnings

Simulations

Behavior and APIs

Joe Sandbox View / Context

IPs

Domains

ASNs

JA3 Fingerprints

Dropped Files

Created / dropped Files

Static File Info

General

File Icon

Static PE Info

General

Entrypoint Preview

Data Directories

Sections

Resources

Imports

Network Behavior

Statistics

CPU Usage

Memory Usage

Behavior

System Behavior

Analysis Process: H6VMxCA4Pn.exePID: 7352, Parent PID: 3964

General

File Activities

File Opened

File Created

File Attributes Queried

Volume Information Queried

Device IO

Windows Analysis Report
H6VMxCA4Pn.exe