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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 795f9caf051b0d3e6199e78fd5af4f92b13ea5bbdeba9d7e9aa58dddf1e8433e. 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


LummaStealer


Vendor detections: 15


Intelligence 15 IOCs YARA 30 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 795f9caf051b0d3e6199e78fd5af4f92b13ea5bbdeba9d7e9aa58dddf1e8433e
SHA3-384 hash: 8a1d819f88c77278a831bfe9a0a9720d3fc2419908647fb60e571bd3550252d2bf3805d3376ac629af573dc57a316cda
SHA1 hash: d850e64cf32dbbce98bf46a81d67ef73fe6eb932
MD5 hash: e22438fac24254fa8437eadb872908f4
humanhash: east-earth-black-asparagus
File name:Firstrunner.exe
Download: download sample
Signature LummaStealer
Create hunting rule
File size:12'654'080 bytes
First seen:2026-09-20 15:52:39 UTC
Last seen:2026-09-20 16:52:56 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 1aae8bf580c846f39c71c05898e57e88 (269 x LummaStealer, 169 x SalatStealer, 24 x ACRStealer)
ssdeep 196608:LEixneyA352hR2PSogmMOCu/iganeSrbnQ5Z5sTjVY:u9EHmNFivneUgsdY
TLSH T1BDD6AD01FE9B94F2E903593101ABB26F67309D064F25CBD7EB407B6AF9376A11D36209
TrID 40.2% (.EXE) InstallShield setup (43053/19/16)
29.1% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
6.1% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
6.0% (.EXE) Win64 Executable (generic) (6522/11/2)
4.7% (.EXE) Win16 NE executable (generic) (5038/12/1)
Magika pebin
Reporter aachum
Tags:dropped-by-OffLoader exe LummaStealer


Avatar
iamaachum
https://fastsrunners.com/Firstrunner.exe

Intelligence

File Origin
# of uploads :
2
# of downloads :
208
Origin country :
ES ES
Vendor Threat Intelligence
No detections
Malware family:
n/a
ID:
1
File name:
exe
Verdict:
Malicious activity
Analysis date:
2026-09-20 16:02:05 UTC
Tags:
susp-powershell golang defendnot tool donutloader loader stealer evasion autoit auto-reg rust
Link:
https://app.any.run/tasks/23ebb76b-56e5-4f71-b9a8-0a1488ab390c

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/87664/
Detection(s):
SecuriteInfo.com.Trojan.Siggen34.17112.36237448.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file
Creating a file in the Windows subdirectories
Creating a process from a recently created file
Creating a process with a hidden window
Creating a file in the %temp% directory
Launching a process
Loading a suspicious library
Forced system process termination
Сreating synchronization primitives
Adding an exclusion to Microsoft Defender
Unauthorized injection to a system process
Enabling autorun by creating a file
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
anti-vm crypto dropper evasive golang packed
Link:
https://www.filescan.io/uploads/6ab0016c15ebb42cbb30f62e/reports/1a73070e-4504-4bc8-bbcb-3deab9e71d5a/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_60%
Link:
https://www.hybrid-analysis.com/sample/795f9caf051b0d3e6199e78fd5af4f92b13ea5bbdeba9d7e9aa58dddf1e8433e
Verdict:
Malicious
File Type:
exe x32
First seen:
2026-09-20T13:27:00Z UTC
Last seen:
2026-09-21T14:27:00Z UTC
Hits:
~100
Link:
https://opentip.kaspersky.com/795f9caf051b0d3e6199e78fd5af4f92b13ea5bbdeba9d7e9aa58dddf1e8433e/results?tab=lookup
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/e5e95fd3-77a5-4e3c-ae3f-01f80e3286c1
Result
Threat name:
defendnot Loader
Create hunting rule
Detection:
malicious
Classification:
phis.troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1975323
Signature
Adds a directory exclusion to Windows Defender
AI detected malicious Powershell script
Allocates memory in foreign processes
Antivirus detection for dropped file
Antivirus detection for URL or domain
Contains functionality to inject code into remote processes
Contains functionality to inject threads in other processes
Creates a thread in another existing process (thread injection)
Drops executables to the windows directory (C:\Windows) and starts them
Excessive usage of taskkill to terminate processes
Found API chain indicative of debugger detection
Found direct / indirect Syscall (likely to bypass EDR)
Joe Sandbox ML detected suspicious sample
Loading BitLocker PowerShell Module
Malicious sample detected (through community Yara rule)
Modifies secure preferences of browsers
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
Reads the Security eventlog
Reads the System eventlog
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: Suspicious Script Execution From Temp Folder
Suspicious powershell command line found
Tries to harvest and steal browser information (history, passwords, etc)
Uses schtasks.exe or at.exe to add and modify task schedules
Writes or reads registry keys via WMI
Writes to foreign memory regions
Yara detected defendnot Loader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1975323 Sample: Firstrunner.exe Startdate: 20/09/2026 Architecture: WINDOWS Score: 100 90 IyHYjVioFndhJrYuyPiCPYPNWh.IyHYjVioFndhJrYuyPiCPYPNWh 2->90 106 Malicious sample detected (through community Yara rule) 2->106 108 Antivirus detection for URL or domain 2->108 110 Multi AV Scanner detection for dropped file 2->110 112 6 other signatures 2->112 10 Firstrunner.exe 9 2->10         started        14 defendnot-loader.exe 2->14         started        16 ibrowser.exe 2->16         started        18 2 other processes 2->18 signatures3 process4 file5 82 C:\Windows82Cf9sKY2\defendnot.dll, PE32+ 10->82 dropped 84 C:\Windows84Cf9sKY2\defendnot-loader.exe, PE32+ 10->84 dropped 86 C:\Users\user\...\updater_XzeIAbnR.exe, PE32+ 10->86 dropped 88 C:\Users\user\AppData\...\dn-2647340557.ps1, ASCII 10->88 dropped 132 Suspicious powershell command line found 10->132 134 Drops executables to the windows directory (C:\Windows) and starts them 10->134 136 Adds a directory exclusion to Windows Defender 10->136 20 updater_XzeIAbnR.exe 1 31 10->20         started        25 defendnot-loader.exe 1 10->25         started        27 powershell.exe 23 10->27         started        31 3 other processes 10->31 138 Writes to foreign memory regions 14->138 140 Allocates memory in foreign processes 14->140 142 Creates a thread in another existing process (thread injection) 14->142 29 Taskmgr.exe 14->29         started        144 Antivirus detection for dropped file 16->144 signatures6 process7 dnsIp8 92 87.120.104.147, 49719, 49720, 49721 SINOWORLDWIDEHK Norway 20->92 74 C:\Users\user\AppData\Local\...\ibrowser.exe, PE32+ 20->74 dropped 76 C:\Users\...\583543_CharlottePlastic.exe.part, PE32+ 20->76 dropped 78 C:\...\583543_CharlottePlastic.exe (copy), PE32+ 20->78 dropped 80 5 other malicious files 20->80 dropped 116 Antivirus detection for dropped file 20->116 118 Suspicious powershell command line found 20->118 120 Contains functionality to inject threads in other processes 20->120 130 6 other signatures 20->130 33 583542_main.exe 20->33         started        37 583543_CharlottePlastic.exe 20->37         started        39 getmac.exe 20->39         started        49 19 other processes 20->49 122 Multi AV Scanner detection for dropped file 25->122 124 Found API chain indicative of debugger detection 25->124 126 Writes to foreign memory regions 25->126 41 Taskmgr.exe 25->41         started        128 Loading BitLocker PowerShell Module 27->128 43 conhost.exe 27->43         started        45 conhost.exe 31->45         started        47 conhost.exe 31->47         started        file9 signatures10 process11 file12 68 C:\ProgramData\x64dbg\x64dbg.exe, PE32+ 33->68 dropped 70 C:\ProgramData\x64dbg\msvcp140.dll, PE32+ 33->70 dropped 94 Loading BitLocker PowerShell Module 33->94 96 Reads the Security eventlog 33->96 98 Reads the System eventlog 33->98 72 C:\Users\user\AppData\Local\...\AutoIt3.exe, PE32+ 37->72 dropped 100 Uses schtasks.exe or at.exe to add and modify task schedules 37->100 51 AutoIt3.exe 37->51         started        54 at.exe 37->54         started        102 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 39->102 104 Writes or reads registry keys via WMI 39->104 56 conhost.exe 39->56         started        58 conhost.exe 49->58         started        60 conhost.exe 49->60         started        62 conhost.exe 49->62         started        64 13 other processes 49->64 signatures13 process14 signatures15 114 Found direct / indirect Syscall (likely to bypass EDR) 51->114 66 conhost.exe 54->66         started        process16
Score:
86%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/795f9caf051b0d3e6199e78fd5af4f92b13ea5bbdeba9d7e9aa58dddf1e8433e
Verdict:
Vidar Stealer
YARA:
5 match(es)
Tags:
Executable Go Loader (Factory-v3) PE (Portable Executable) PE File Layout T1027 T1055 Vidar Stealer Win 32 Exe x86
Link:
https://app.malva.re/file/e22438fac24254fa8437eadb872908f4
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/795f9caf051b0d3e6199e78fd5af4f92b13ea5bbdeba9d7e9aa58dddf1e8433e/
Threat name:
Win32.Trojan.Wacatac
Create hunting rule
Status:
Suspicious
First seen:
2026-09-20 15:53:19 UTC
File Type:
PE (Exe)
AV detection:
7 of 24 (29.17%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=pfpzzlyfdmgt4ymz46h5ll2pskyt5jn3325j27u2uwg534piim7a._file
Verdict:
malicious
Label(s):
HACKTOOL_DefendNot
Create hunting rule
Link:
https://reports.threatray.com/688dfccd-22cb-4e1c-a8bc-4d2fdc97fe95
Result
Malware family:
defendnot
Create hunting rule
Score:
  10/10
Tags:
family:defendnot defense_evasion discovery execution hacktool persistence spyware stealer
Link:
https://tria.ge/reports/260920-tbreqsda25/
Behaviour
Checks processor information in registry
Enumerates system info in registry
Kills process with taskkill
Modifies data under HKEY_USERS
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of UnmapMainImage
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Browser Information Discovery
Executes a command shell one-liner
System Location Discovery: System Language Discovery
System Time Discovery
Drops file in Program Files directory
Drops file in Windows directory
Suspicious use of SetThreadContext
Accesses cryptocurrency files/wallets, possible credential harvesting
Adds Run key to start application
Executes dropped EXE
Loads dropped DLL
Reads user/profile data of web browsers
Command and Scripting Interpreter: PowerShell
Downloads MZ/PE file
Detects Defendnot
Family: Defendnot
Unpacked files
SH256 hash:
795f9caf051b0d3e6199e78fd5af4f92b13ea5bbdeba9d7e9aa58dddf1e8433e
MD5 hash:
e22438fac24254fa8437eadb872908f4
SHA1 hash:
d850e64cf32dbbce98bf46a81d67ef73fe6eb932
Link:
https://www.unpac.me/results/52f15b7b-9059-460b-9c94-c08eb5857932/
Malware family:
RustiBrowser
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/795f9caf051b/report/overview.html
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/795f9caf051b0d3e6199e78fd5af4f92b13ea5bbdeba9d7e9aa58dddf1e8433e

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:command_and_control
Create hunting rule
Author:CD_R0M_
Description:This rule searches for common strings found by malware using C2. Based on a sample used by a Ransomware group
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__QueryInfo
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerException__ConsoleCtrl
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:DetectGoMethodSignatures
Create hunting rule
Author:Wyatt Tauber
Description:Detects Go method signatures in unpacked Go binaries
Rule name:Detect_Go_GOMAXPROCS
Create hunting rule
Author:Obscurity Labs LLC
Description:Detects Go binaries by the presence of runtime.GOMAXPROCS in the runtime metadata
Rule name:detect_powershell
Create hunting rule
Author:daniyyell
Description:Detects suspicious PowerShell activity related to malware execution
Rule name:GoBinTest
Create hunting rule
Rule name:golang
Create hunting rule
Rule name:Golangmalware
Create hunting rule
Author:Dhanunjaya
Description:Malware in Golang
Rule name:golang_binary_string
Create hunting rule
Description:Golang strings present
Rule name:golang_bin_JCorn_CSC846
Create hunting rule
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:Golang_Find_CSC846
Create hunting rule
Author:Ashar Siddiqui
Description:Find Go Signatuers
Rule name:Golang_Find_CSC846_Simple
Create hunting rule
Author:Ashar Siddiqui
Description:Find Go Signatuers
Rule name:HiveRansomware
Create hunting rule
Author:Dhanunjaya
Description:Yara Rule To Detect Hive V4 Ransomware
Rule name:identity_golang
Create hunting rule
Author:Eric Yocam
Description:find Golang malware
Rule name:IronTiger_HTTPBrowser_Dropper
Create hunting rule
Author:Cyber Safety Solutions, Trend Micro
Description:Iron Tiger Malware - HTTPBrowser Dropper
Reference:http://goo.gl/T5fSJC
Rule name:MD5_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:ProgramLanguage_Golang
Create hunting rule
Author:albertzsigovits
Description:Application written in Golang programming language
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:Suspicious_Golang_Binary
Create hunting rule
Author:Tim Machac
Description:Triage: Golang-compiled binary with suspicious OS/persistence/network strings (not family-specific)
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: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/

File information

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

Web download

LummaStealer

Executable exe 795f9caf051b0d3e6199e78fd5af4f92b13ea5bbdeba9d7e9aa58dddf1e8433e

(this sample)

  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/87664/

Comments