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


Intelligence 9 IOCs YARA 3 File information Comments

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:Executable exe
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 aachum
Tags:exe Shark


Avatar
iamaachum
https://revisevillain.shop/shark.bin

Intelligence


File Origin
# of uploads :
1
# of downloads :
508
Origin country :
ES ES
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
setup_patched.exe
Verdict:
Malicious activity
Analysis date:
2025-04-09 22:56:29 UTC
Tags:
lumma stealer loader

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

Behaviour
Searching for the window
Сreating synchronization primitives
Creating a file
Running batch commands
Creating a process with a hidden window
Launching a process
DNS request
Connection attempt
Sending a custom TCP request
Connecting to a non-recommended domain
Setting a single autorun event
Result
Threat name:
n/a
Detection:
clean
Classification:
n/a
Score:
12 / 100
Behaviour
Behavior Graph:
n/a
Gathering data
Threat name:
Win32.Trojan.Generic
Status:
Suspicious
First seen:
2025-04-09 14:06:11 UTC
File Type:
PE (Exe)
Extracted files:
14
AV detection:
8 of 38 (21.05%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  7/10
Tags:
discovery persistence
Behaviour
Modifies registry key
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
NSIS installer
System Location Discovery: System Language Discovery
Adds Run key to start application
Executes dropped EXE
Verdict:
Malicious
Tags:
ta_abused_service
YARA:
n/a
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: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

Executable 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
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
COM_BASE_APICan Download & Execute componentsole32.dll::CoCreateInstance
SHELL_APIManipulates System ShellSHELL32.dll::ShellExecuteA
SHELL32.dll::SHFileOperationA
SHELL32.dll::SHGetFileInfoA
WIN32_PROCESS_APICan Create Process and ThreadsKERNEL32.dll::CreateProcessA
KERNEL32.dll::CloseHandle
KERNEL32.dll::CreateThread
WIN_BASE_APIUses Win Base APIKERNEL32.dll::LoadLibraryExA
KERNEL32.dll::GetDiskFreeSpaceA
KERNEL32.dll::GetCommandLineA
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CopyFileA
KERNEL32.dll::CreateDirectoryA
KERNEL32.dll::CreateFileA
KERNEL32.dll::DeleteFileA
KERNEL32.dll::MoveFileA
ADVAPI32.dll::SetFileSecurityA
WIN_REG_APICan Manipulate Windows RegistryADVAPI32.dll::RegCreateKeyExA
ADVAPI32.dll::RegDeleteKeyA
ADVAPI32.dll::RegOpenKeyExA
ADVAPI32.dll::RegQueryValueExA
ADVAPI32.dll::RegSetValueExA
WIN_USER_APIPerforms GUI ActionsUSER32.dll::AppendMenuA
USER32.dll::EmptyClipboard
USER32.dll::FindWindowExA
USER32.dll::OpenClipboard
USER32.dll::PeekMessageA
USER32.dll::CreateWindowExA

Comments