MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 43fbbc85fb1fea028cc73f345203b5c3b6a5ded85e1fb472c96f4ece9f1af0df. 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



Threat unknown


Vendor detections: 9


Intelligence 9 IOCs YARA File information Comments

SHA256 hash: 43fbbc85fb1fea028cc73f345203b5c3b6a5ded85e1fb472c96f4ece9f1af0df
SHA3-384 hash: f5f56289c89390cca21840d8aa781479fbb164181b53ba6daf445218934c62545c04c4d03814af9c8bf93fab1676c841
SHA1 hash: 13149a833f470dbd1eb0bc42b308ba11224cf4d7
MD5 hash: 3d16a2b8987655e7ea0fc3f621b31cff
humanhash: mississippi-island-montana-mirror
File name:YomiraSetup.exe
Download: download sample
File size:84'561'590 bytes
First seen:2025-08-13 05:17:16 UTC
Last seen:2025-08-16 10:37:12 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash b34f154ec913d2d2c435cbd644e91687 (525 x GuLoader, 110 x RemcosRAT, 80 x EpsilonStealer)
ssdeep 1572864:QF+BWqL9BHBWLwbzsQY1ZxhbJeF57h/7IO/dxsOGU9NFN78lxJZzUq2:QMB1MwbOD/dI7pM0sOd9NFNIlxb2
TLSH T1D1083330ABE6F876E255BEB781F61F3602172586FEB59A533D4203DC0B74B03A919E11
TrID 47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
15.9% (.EXE) Win64 Executable (generic) (10522/11/4)
9.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
6.8% (.EXE) Win32 Executable (generic) (4504/4/1)
Magika pebin
dhash icon c4dadadad2f492c2 (25 x GuLoader, 14 x RemcosRAT, 7 x AgentTesla)
Reporter cxiao
Tags:exe


Avatar
cxiao
NSIS installer for a malicious Electron application

Intelligence


File Origin
# of uploads :
10
# of downloads :
75
Origin country :
SE SE
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
YomiraSetup.exe
Verdict:
Malicious activity
Analysis date:
2025-08-13 05:19:20 UTC
Tags:
stealer discord arch-doc auto-download generic ims-api nodejs

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
92.5%
Tags:
extens sage blic
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %temp% subdirectories
Сreating synchronization primitives
Creating a window
Searching for the window
Searching for the Windows task manager window
Running batch commands
Creating a process with a hidden window
Launching a process
Using the Windows Management Instrumentation requests
Creating a file
Sending a custom TCP request
Creating a file in the %AppData% subdirectories
Creating a process from a recently created file
Searching for synchronization primitives
Unauthorized injection to a recently created process
Loading a suspicious library
Moving a file to the %AppData% subdirectory
DNS request
Connection attempt
Sending an HTTP GET request
Launching a tool to kill processes
Gathering data
Result
Malware family:
n/a
Score:
  7/10
Tags:
defense_evasion discovery execution linux spyware stealer
Behaviour
Checks processor information in registry
Enumerates system info in registry
Kills process with taskkill
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of WriteProcessMemory
Browser Information Discovery
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Enumerates processes with tasklist
Checks installed software on the system
Legitimate hosting services abused for malware hosting/C2
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Reads user/profile data of web browsers
Please note that we are no longer able to provide a coverage score for Virus Total.

File information


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

  
Dropped by
4236de23451617dcaae04d0d75c8131b0240c437334caae7988b74a96ac544ee

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
Reviews
IDCapabilitiesEvidence
COM_BASE_APICan Download & Execute componentsole32.dll::CoCreateInstance
SECURITY_BASE_APIUses Security Base APIADVAPI32.dll::AdjustTokenPrivileges
ADVAPI32.dll::SetFileSecurityW
SHELL_APIManipulates System ShellSHELL32.dll::ShellExecuteExW
SHELL32.dll::SHFileOperationW
SHELL32.dll::SHGetFileInfoW
WIN32_PROCESS_APICan Create Process and ThreadsKERNEL32.dll::CreateProcessW
ADVAPI32.dll::OpenProcessToken
KERNEL32.dll::CloseHandle
KERNEL32.dll::CreateThread
WIN_BASE_APIUses Win Base APIKERNEL32.dll::LoadLibraryExW
KERNEL32.dll::GetDiskFreeSpaceW
KERNEL32.dll::GetCommandLineW
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CopyFileW
KERNEL32.dll::CreateDirectoryW
KERNEL32.dll::CreateFileW
KERNEL32.dll::DeleteFileW
KERNEL32.dll::MoveFileExW
KERNEL32.dll::MoveFileW
WIN_BASE_USER_APIRetrieves Account InformationADVAPI32.dll::LookupPrivilegeValueW
WIN_REG_APICan Manipulate Windows RegistryADVAPI32.dll::RegCreateKeyExW
ADVAPI32.dll::RegDeleteKeyW
ADVAPI32.dll::RegOpenKeyExW
ADVAPI32.dll::RegQueryValueExW
ADVAPI32.dll::RegSetValueExW
WIN_USER_APIPerforms GUI ActionsUSER32.dll::AppendMenuW
USER32.dll::EmptyClipboard
USER32.dll::FindWindowExW
USER32.dll::OpenClipboard
USER32.dll::PeekMessageW
USER32.dll::CreateWindowExW

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