MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 fde3819fe90193bd64f3e6257a9a7e683aa359405e40f56658ea56cae46ed8a6. 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: 13
| SHA256 hash: | fde3819fe90193bd64f3e6257a9a7e683aa359405e40f56658ea56cae46ed8a6 |
|---|---|
| SHA3-384 hash: | 36c62b9e10243daf0d07cd6b16b747dd1a9a8ecd0284a7f1da1be5dc871cb103b2aae7916d906f8553475038bfeeda9b |
| SHA1 hash: | 767d274aaf67aac1b01764ba95afdfdcfc0285da |
| MD5 hash: | 328eaac2117ff62d34fec8175cc72900 |
| humanhash: | single-ohio-august-ten |
| File name: | MicrosoftUpdate.exe |
| Download: | download sample |
| File size: | 32'840'946 bytes |
| First seen: | 2025-12-05 07:34:23 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | dcaf48c1f10b0efa0a4472200f3850ed (39 x BlankGrabber, 16 x SalatStealer, 15 x PythonStealer) |
| ssdeep | 786432:IujmF/XktzMFlUR1OiAhnCdsqVtcQT1RYyyvV/M8+N5B1/P8Dpw4j:IXZkZMEWHVCdsacaDH8+N5BZ2pw4 |
| TLSH | T17877334CB1E058CEFEBB913F8455C8068F69B1D39BE2C89E079899321C57AEC1D35B94 |
| 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 |  smica83 |
| Tags: | exe |
Intelligence
File Origin
# of uploads :
1
# of downloads :
108
Origin country :
HUVendor Threat Intelligence
Malware configuration found for:
PyInstaller
Details
PyInstaller
a compiled assembly and a Python version
Malware family:
n/a
ID:
1
File name:
MicrosoftUpdate.exe
Verdict:
Malicious activity
Analysis date:
2025-12-05 07:35:58 UTC
Tags:
python pyinstaller
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Clean
Score:
99.9%
Tags:
n/a
Verdict:
Likely Malicious
Threat level:
7.5/10
Confidence:
100%
Tags:
anti-debug expand installer-heuristic lolbin microsoft_visual_cc overlay overlay packed packed pyinstaller pyinstaller
Verdict:
Malicious
Labled as:
Trojan.Agent
Verdict:
Malicious
File Type:
exe x64
First seen:
2025-11-21T09:06:00Z UTC
Last seen:
2025-12-05T08:24:00Z UTC
Hits:
~100
Detections:
Trojan.Agent.UDP.C&C Trojan.Win32.Agent.xcayte
Result
Threat name:
n/a
Detection:
malicious
Classification:
n/a
Score:
48 / 100
Signature
Multi AV Scanner detection for submitted file
Behaviour
Behavior Graph:
Score:
99%
Verdict:
Malware
File Type:
PE
Gathering data
Verdict:
Malicious
Threat:
Trojan.Win32.UDP
Threat name:
Win64.Trojan.Generic
Status:
Suspicious
First seen:
2025-11-21 13:50:55 UTC
File Type:
PE+ (Exe)
Extracted files:
2095
AV detection:
14 of 38 (36.84%)
Threat level:
5/5
Detection(s):
Suspicious file
Result
Malware family:
n/a
Score:
7/10
Tags:
pyinstaller
Behaviour
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Loads dropped DLL
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
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: | 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: | DebuggerException__SetConsoleCtrl |
|---|---|
| Reference: | https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara |
| Rule name: | dependsonpythonailib |
|---|---|
| Author: | Tim Brown |
| Description: | Hunts for dependencies on Python AI libraries |
| Rule name: | Detect_PyInstaller |
|---|---|
| Author: | Obscurity Labs LLC |
| Description: | Detects PyInstaller compiled executables across platforms |
| Rule name: | golang_bin_JCorn_CSC846 |
|---|---|
| Author: | Justin Cornwell |
| Description: | CSC-846 Golang detection ruleset |
| Rule name: | PyInstaller |
|---|---|
| Author: | @bartblaze |
| Description: | Identifies executable converted using PyInstaller. This rule by itself does NOT necessarily mean the detected file is malicious. |
| Rule name: | upxHook |
|---|---|
| Author: | @r3dbU7z |
| Description: | Detect artifacts from 'upxHook' - modification of UPX packer |
| Reference: | https://bazaar.abuse.ch/sample/6352be8aa5d8063673aa428c3807228c40505004320232a23d99ebd9ef48478a/ |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
No further information available
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