MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b1886331236b03a1527ccf95dbb81ad9bfb7e73029887f7bcb26d6d6fdc01034. 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: 4


Intelligence 4 IOCs YARA 39 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b1886331236b03a1527ccf95dbb81ad9bfb7e73029887f7bcb26d6d6fdc01034
SHA3-384 hash: a790ee26968cdf8816a8702b219c95195d0b9459c010cefcbe9114d49127cafbab15f063454fdf63b2b2f3570db861e3
SHA1 hash: 5e2254ac90c0ebc72e0d08fb92ec0cb53505eeb0
MD5 hash: 0872c30797fa4f60d88285d4b765c7a0
humanhash: maine-steak-lion-white
File name:Windows Defender.zip
Download: download sample
File size:20'296'060 bytes
First seen:2026-08-18 15:31:36 UTC
Last seen:Never
File type: zip
MIME type:application/zip
ssdeep 393216:v55iH+qyC2GSoG6LekMzbVHX3Hm/belgL4hbjCwfaty7MVbQ0OSs:v5oeqGG9ekCbVHXCoNbePc7D
TLSH T133173310910C9AE7EC2B11B3A9D32B0A2D653F50FE34F8E87752D33B4E06D9E5475A62
TrID 66.6% (.XPI) Mozilla Firefox browser extension (8000/1/1)
33.3% (.ZIP) ZIP compressed archive (4000/1)
Magika zip
Reporter Anonymous
Tags:zip

Intelligence

File Origin
# of uploads :
1
# of downloads :
91
Origin country :
CA CA
Vendor Threat Intelligence
Details
Link:
https://research.acce.ciphertechsolutions.com/results/c0c897d6-af04-4e20-825b-e43fc5e1e516/
Verdict:
Unknown
Link:
https://www.hybrid-analysis.com/sample/b1886331236b03a1527ccf95dbb81ad9bfb7e73029887f7bcb26d6d6fdc01034
Score:
1%
Verdict:
Benign
File Type:
ARCHIVE
Link:
https://malprob.io/report/b1886331236b03a1527ccf95dbb81ad9bfb7e73029887f7bcb26d6d6fdc01034
Verdict:
inconclusive
YARA:
3 match(es)
Tags:
Executable PDB Path PE (Portable Executable) PE File Layout Zip Archive
Link:
https://app.malva.re/file/0872c30797fa4f60d88285d4b765c7a0
Gathering data
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=wgeggmjdnmb2cut4z6k5xoa23g73pzzqfgeh666le3lnn7oaca2a._file
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/b1886331236b03a1527ccf95dbb81ad9bfb7e73029887f7bcb26d6d6fdc01034

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:BLOWFISH_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for Blowfish constants
Rule name:Capability_Embedded_Lua
Create hunting rule
Author:Obscurity Labs LLC
Description:Detects embedded Lua engines by looking for multiple Lua API symbols or env-var hooks
Rule name:Check_OutputDebugStringA_iat
Create hunting rule
Rule name:cobalt_strike_tmp01925d3f
Create hunting rule
Author:The DFIR Report
Description:files - file ~tmp01925d3f.exe
Reference:https://thedfirreport.com
Rule name:CP_Script_Inject_Detector
Create hunting rule
Author:DiegoAnalytics
Description:Detects attempts to inject code into another process across PE, ELF, Mach-O binaries
Rule name:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerCheck__MemoryWorkingSet
Create hunting rule
Author:Fernando Mercês
Description:Anti-debug process memory working set size check
Reference:http://www.gironsec.com/blog/2015/06/anti-debugger-trick-quicky/
Rule name:DebuggerCheck__QueryInfo
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerException__SetConsoleCtrl
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DetectEncryptedVariants
Create hunting rule
Author:Zinyth
Description:Detects 'encrypted' in ASCII, Unicode, base64, or hex-encoded
Rule name:Detect_PowerShell_Obfuscation
Create hunting rule
Author:daniyyell
Description:Detects obfuscated PowerShell commands commonly used in malicious scripts.
Rule name:dgaagas
Create hunting rule
Author:Harshit
Description:Uses certutil.exe to download a file named test.txt
Rule name:Disable_Defender
Create hunting rule
Author:iam-py-test
Description:Detect files disabling or modifying Windows Defender, Windows Firewall, or Microsoft Smartscreen
Rule name:FreddyBearDropper
Create hunting rule
Author:Dwarozh Hoshiar
Description:Freddy Bear Dropper is dropping a malware through base63 encoded powershell scrip.
Rule name:golang_bin_JCorn_CSC846
Create hunting rule
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:INDICATOR_SUSPICIOUS_EXE_RegKeyComb_DisableWinDefender
Create hunting rule
Author:ditekSHen
Description:Detects executables embedding registry key / value combination indicative of disabling Windows Defender features
Rule name:MD5_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:meth_stackstrings
Create hunting rule
Author:Willi Ballenthin
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:pe_detect_tls_callbacks
Create hunting rule
Rule name:PE_Digital_Certificate
Create hunting rule
Author:albertzsigovits
Rule name:pe_no_import_table
Create hunting rule
Description:Detect pe file that no import table
Rule name:RANSOMWARE
Create hunting rule
Author:ToroGuitar
Rule name:RIPEMD160_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SEH__vectored
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:SHA1_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA1 constants
Rule name:SHA512_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA384/SHA512 constants
Rule name:skip20_sqllang_hook
Create hunting rule
Author:Mathieu Tartare <mathieu.tartare@eset.com>
Description:YARA rule to detect if a sqllang.dll version is targeted by skip-2.0. Each byte pattern corresponds to a function hooked by skip-2.0. If $1_0 or $1_1 match, it is probably targeted as it corresponds to the hook responsible for bypassing the authentication.
Reference:https://www.welivesecurity.com/
Rule name:SuspiciousDll
Create hunting rule
Author:martclau
Description:Detects SolarWinds Orion backdoor
Rule name:Sus_All_Windows_PE_Malware
Create hunting rule
Author:DiegoAnalytics
Description:Detects Windows PE malware of all types, avoids non-executables like .html
Rule name:Sus_CMD_Powershell_Usage
Create hunting rule
Author:XiAnzheng
Description:May Contain(Obfuscated or no) Powershell or CMD Command that can be abused by threat actor(can create FP)
Rule name:telebot_framework
Create hunting rule
Author:vietdx.mb
Rule name:test_Malaysia
Create hunting rule
Author:rectifyq
Description:Detects file containing malaysia string
Rule name:test_rule_vldslv
Create hunting rule
Rule name:ThreadControl__Context
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:TH_AntiVM_MassHunt_Win_Malware_2026_CYFARE
Create hunting rule
Author:CYFARE
Description:Detects Windows malware employing anti-VM / anti-sandbox evasion techniques across VMware, VirtualBox, Hyper-V, QEMU, Xen, and generic sandbox environments
Reference:https://cyfare.net/
Rule name:VECT_Ransomware
Create hunting rule
Author:Mustafa Bakhit
Description:Detects activity associated with VECT ransomware. This includes registry modifications and deletions, execution of system and defense-evasion commands, suspicious API usage, mutex creation, file and memory manipulation, ransomware note generation, anti-debugging and anti-analysis techniques, and embedded cryptographic constants (SHA256) characteristic of this malware family. Designed for threat intelligence and malware detection environments.
Rule name:vmdetect
Create hunting rule
Author:nex
Description:Possibly employs anti-virtualization techniques
Rule name:WHIRLPOOL_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for WhirlPool constants

File information

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

  
Link
https://www.virustotal.com/gui/file/b1886331236b03a1527ccf95dbb81ad9bfb7e73029887f7bcb26d6d6fdc01034/behavior
  
Delivery method
Multiple

Comments