MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 2591b5272080358c5c6c85483f6e2219db00449bb3e0c84f061734bf53c64677. 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
| SHA256 hash: | 2591b5272080358c5c6c85483f6e2219db00449bb3e0c84f061734bf53c64677 |
|---|---|
| SHA3-384 hash: | 98715e4b31886881c5de444d9b3d44df8f286b41f47ef162c5ae3cf6c8df3e992c17cfd543005848e06ead9f3e119997 |
| SHA1 hash: | aa8bbf76c81b6ca690d5a7660803c5a918147057 |
| MD5 hash: | 7066e5469854529606279d403bba0540 |
| humanhash: | enemy-nebraska-spaghetti-emma |
| File name: | shark.bin |
| Download: | download sample |
| File size: | 31'974'584 bytes |
| First seen: | 2025-04-09 23:43:27 UTC |
| Last seen: | Never |
| File type: | |
| MIME type: | application/x-dosexec |
| imphash | b1a57b635b23ffd553b3fd1e0960b2bd (39 x Formbook, 29 x Loki, 27 x AgentTesla) |
| ssdeep | 786432:zH4Uw/zYTbbQLspzVcKR1GH0/dH3Y4UXX7QLspzVcKR1GH0/b:zH4UOz/o8iGYdHo4Eko8iGYb |
| TLSH | T1426733785122CC8CDC80CDB5CC102475DA88F9A7C16E2A1A4D9971BFC836E7D6DE75CA |
| TrID | 30.2% (.EXE) Win64 Executable (generic) (10522/11/4) 18.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 14.5% (.EXE) Win16 NE executable (generic) (5038/12/1) 12.9% (.EXE) Win32 Executable (generic) (4504/4/1) 5.9% (.ICL) Windows Icons Library (generic) (2059/9) |
| Magika | pebin |
| dhash icon | c4d48a969294ccc0 (2 x Nymaim, 1 x NanoCore) |
| Reporter | |
| Tags: | exe Shark |
Intelligence
File Origin
ESVendor Threat Intelligence
Result
Behaviour
Result
Behaviour
Result
Behaviour
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: | Detect_SliverFox_String |
|---|---|
| Author: | huoji |
| Description: | Detect files is `SliverFox` malware |
| Rule name: | PE_Digital_Certificate |
|---|---|
| Author: | albertzsigovits |
| Rule name: | Sus_Obf_Enc_Spoof_Hide_PE |
|---|---|
| Author: | XiAnzheng |
| Description: | Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP) |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
Web download
exe 2591b5272080358c5c6c85483f6e2219db00449bb3e0c84f061734bf53c64677
(this sample)
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 |
|---|---|---|
| COM_BASE_API | Can Download & Execute components | ole32.dll::CoCreateInstance |
| SHELL_API | Manipulates System Shell | SHELL32.dll::ShellExecuteA SHELL32.dll::SHFileOperationA SHELL32.dll::SHGetFileInfoA |
| WIN32_PROCESS_API | Can Create Process and Threads | KERNEL32.dll::CreateProcessA KERNEL32.dll::CloseHandle KERNEL32.dll::CreateThread |
| WIN_BASE_API | Uses Win Base API | KERNEL32.dll::LoadLibraryExA KERNEL32.dll::GetDiskFreeSpaceA KERNEL32.dll::GetCommandLineA |
| WIN_BASE_IO_API | Can Create Files | KERNEL32.dll::CopyFileA KERNEL32.dll::CreateDirectoryA KERNEL32.dll::CreateFileA KERNEL32.dll::DeleteFileA KERNEL32.dll::MoveFileA ADVAPI32.dll::SetFileSecurityA |
| WIN_REG_API | Can Manipulate Windows Registry | ADVAPI32.dll::RegCreateKeyExA ADVAPI32.dll::RegDeleteKeyA ADVAPI32.dll::RegOpenKeyExA ADVAPI32.dll::RegQueryValueExA ADVAPI32.dll::RegSetValueExA |
| WIN_USER_API | Performs GUI Actions | USER32.dll::AppendMenuA USER32.dll::EmptyClipboard USER32.dll::FindWindowExA USER32.dll::OpenClipboard USER32.dll::PeekMessageA USER32.dll::CreateWindowExA |
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