MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 ff821951b67e64fcd451610fa2ba90df1ab7a4406b7276c8365c9ea9bb09d1a0. 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: 11
| SHA256 hash: | ff821951b67e64fcd451610fa2ba90df1ab7a4406b7276c8365c9ea9bb09d1a0 |
|---|---|
| SHA3-384 hash: | 2ed71c34a8bbab3a6b377a0f6f3f85b70431e747ffc46a7bc617c433d06dad91194799b5d837e68dc7e605958fae0929 |
| SHA1 hash: | d36aef58d0397df9c86eab026b693e59dac0e97e |
| MD5 hash: | fc8d22c2bf80252a55f32f17c4c0230c |
| humanhash: | ink-romeo-video-north |
| File name: | win.exe |
| Download: | download sample |
| File size: | 332'800 bytes |
| First seen: | 2025-08-19 17:27:59 UTC |
| Last seen: | 2025-08-19 19:22:52 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | af30d79a3b48cae3a79dfcd152f7b4b1 |
| ssdeep | 3072:/Il7scbEeo+Lm30Jg0Xn1KmtQaN6379bzVkNuX/v9i2aVS5jhlnLpyu37zkTqnDr:A/doLdbzqNuX/v9i231dcOzTEi3d |
| TLSH | T105647D15F6A514F9E5A7813DCD424949EB72BC1647A0EBCF13900AA33F276E05E3EB12 |
| TrID | 48.7% (.EXE) Win64 Executable (generic) (10522/11/4) 23.3% (.EXE) Win16 NE executable (generic) (5038/12/1) 9.3% (.EXE) OS/2 Executable (generic) (2029/13) 9.2% (.EXE) Generic Win/DOS Executable (2002/3) 9.2% (.EXE) DOS Executable Generic (2000/1) |
| Magika | pebin |
| Reporter |  burger |
| Tags: | exe |
Intelligence
File Origin
# of uploads :
3
# of downloads :
41
Origin country :
NLVendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
https://github.com/dlleasy003/Extreme/releases/download/v4/Extreme-Injector_v4.exe
Verdict:
Malicious activity
Analysis date:
2025-08-14 07:02:15 UTC
Tags:
github api-base64
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Detection(s):
Verdict:
Malicious
Score:
98.2%
Tags:
vmdetect
Result
Verdict:
Clean
Maliciousness:
Verdict:
Malicious
Threat level:
10/10
Confidence:
100%
Tags:
anti-debug anti-vm anti-vm cmd crypto evasive explorer fingerprint lolbin microsoft_visual_cc schtasks xmrig
Verdict:
Malicious
Labled as:
Midie.Generic
Verdict:
Malicious
Result
Threat name:
n/a
Detection:
malicious
Classification:
evad
Score:
68 / 100
Signature
Antivirus / Scanner detection for submitted sample
Contain functionality to detect virtual machines
Found API chain indicative of debugger detection
Multi AV Scanner detection for submitted file
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Behaviour
Behavior Graph:
Score:
100%
Verdict:
Malware
File Type:
PE
Gathering data
Verdict:
Malicious
Threat:
Trojan.Win32.Tasker
Threat name:
Win64.Trojan.Kepavll
Status:
Malicious
First seen:
2025-08-14 00:48:50 UTC
File Type:
PE+ (Exe)
Extracted files:
1
AV detection:
29 of 38 (76.32%)
Threat level:
5/5
Detection(s):
Suspicious file
Result
Malware family:
n/a
Score:
9/10
Tags:
defense_evasion
Behaviour
Suspicious behavior: EnumeratesProcesses
Looks for VMWare Tools registry key
Looks for VirtualBox Guest Additions in registry
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Unpacked files
SH256 hash:
ff821951b67e64fcd451610fa2ba90df1ab7a4406b7276c8365c9ea9bb09d1a0
MD5 hash:
fc8d22c2bf80252a55f32f17c4c0230c
SHA1 hash:
d36aef58d0397df9c86eab026b693e59dac0e97e
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_VBox_Guest_Additions |
|---|
| Rule name: | Check_VmTools |
|---|
| Rule name: | cobalt_strike_tmp01925d3f |
|---|---|
| Author: | The DFIR Report |
| Description: | files - file ~tmp01925d3f.exe |
| Reference: | https://thedfirreport.com |
| Rule name: | CoinMiner_Strings |
|---|---|
| Author: | Florian Roth (Nextron Systems) |
| Description: | Detects mining pool protocol string in Executable |
| Reference: | https://minergate.com/faq/what-pool-address |
| Rule name: | CoinMiner_Strings_RID2DDE |
|---|---|
| Author: | Florian Roth |
| Description: | Detects mining pool protocol string in Executable |
| Reference: | https://minergate.com/faq/what-pool-address |
| Rule name: | CP_AllMal_Detector |
|---|---|
| Author: | DiegoAnalytics |
| Description: | CrossPlatform All Malwares Detector: Detect PE, ELF, Mach-O, scripts, archives; overlay, obfuscation, encryption, spoofing, hiding, high entropy, network communication |
| Rule name: | CP_Script_Inject_Detector |
|---|---|
| Author: | DiegoAnalytics |
| Description: | Detects attempts to inject code into another process across PE, ELF, Mach-O binaries |
| Rule name: | DebuggerCheck__API |
|---|---|
| Reference: | https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara |
| Rule name: | DetectEncryptedVariants |
|---|---|
| Author: | Zinyth |
| Description: | Detects 'encrypted' in ASCII, Unicode, base64, or hex-encoded |
| Rule name: | Disable_Defender |
|---|---|
| Author: | iam-py-test |
| Description: | Detect files disabling or modifying Windows Defender, Windows Firewall, or Microsoft Smartscreen |
| Rule name: | golang_bin_JCorn_CSC846 |
|---|---|
| Author: | Justin Cornwell |
| Description: | CSC-846 Golang detection ruleset |
| Rule name: | Sus_CMD_Powershell_Usage |
|---|---|
| Author: | XiAnzheng |
| Description: | May Contain(Obfuscated or no) Powershell or CMD Command that can be abused by threat actor(can create FP) |
| Rule name: | ThreadControl__Context |
|---|---|
| Reference: | https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara |
| Rule name: | vmdetect |
|---|---|
| Author: | nex |
| Description: | Possibly employs anti-virtualization techniques |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
exe ff821951b67e64fcd451610fa2ba90df1ab7a4406b7276c8365c9ea9bb09d1a0
(this sample)
Delivery method
Distributed via web download
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 (GUARD_CF) | high |
Reviews
| ID | Capabilities | Evidence |
|---|---|---|
| AUTH_API | Manipulates User Authorization | ADVAPI32.dll::AllocateAndInitializeSid ADVAPI32.dll::FreeSid |
| SECURITY_BASE_API | Uses Security Base API | ADVAPI32.dll::CheckTokenMembership |
| WIN32_PROCESS_API | Can Create Process and Threads | KERNEL32.dll::CreateProcessW KERNEL32.dll::CreateProcessA KERNEL32.dll::OpenProcess KERNEL32.dll::WriteProcessMemory KERNEL32.dll::CloseHandle WININET.dll::InternetCloseHandle |
| WIN_BASE_API | Uses Win Base API | KERNEL32.dll::TerminateProcess KERNEL32.dll::LoadLibraryExW KERNEL32.dll::GetStartupInfoW KERNEL32.dll::GetDiskFreeSpaceExA KERNEL32.dll::GetCommandLineW KERNEL32.dll::GetCommandLineA |
| WIN_BASE_EXEC_API | Can Execute other programs | KERNEL32.dll::WriteConsoleW KERNEL32.dll::ReadConsoleW KERNEL32.dll::SetStdHandle KERNEL32.dll::GetConsoleMode KERNEL32.dll::GetConsoleOutputCP |
| WIN_BASE_IO_API | Can Create Files | KERNEL32.dll::CreateFileW KERNEL32.dll::CreateFileTransactedW KERNEL32.dll::GetWindowsDirectoryW KERNEL32.dll::GetTempFileNameW |
| WIN_REG_API | Can Manipulate Windows Registry | ADVAPI32.dll::RegCreateKeyExW ADVAPI32.dll::RegOpenKeyExW ADVAPI32.dll::RegSetValueExW |
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