MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 81a3511eca347508cbbc82762acc597ef90ffd7ea4eb3b8a67f68312a1e7c3a8. 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: 14


Intelligence 14 IOCs YARA 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 81a3511eca347508cbbc82762acc597ef90ffd7ea4eb3b8a67f68312a1e7c3a8
SHA3-384 hash: cdfa5f61d7b5b336a8ed14842eeb450bc8cf4930f84daf41577310eb712bf664d112dee986d49f6819d4551b005a1515
SHA1 hash: 6c7a408303380197e1689f426a30a50f9a4a5fac
MD5 hash: 4c3217fb087612b958ad7b14061b66d4
humanhash: video-fanta-minnesota-crazy
File name:4c3217fb087612b958ad7b14061b66d4.exe
Download: download sample
Signature LummaStealer
Create hunting rule
File size:350'720 bytes
First seen:2025-02-26 07:07:58 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'649 x AgentTesla, 19'461 x Formbook, 12'202 x SnakeKeylogger)
ssdeep 6144:k5ZSWe5nwmhkoXaIQ1wbER+gRLq0PaPXQCorbYBfSdofmGJQm5zeh3EZMWWPgTjV:k5gb5N28aIQuMT80SPgBbYBtuGa1h3Gl
TLSH T1CD7423B1DB2470F5EEA5B03002F1499260BAD6A15F29485732471FBE92D5ECF5A342DC
TrID 66.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
9.5% (.EXE) Win64 Executable (generic) (10522/11/4)
5.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.5% (.EXE) Win16 NE executable (generic) (5038/12/1)
4.0% (.EXE) Win32 Executable (generic) (4504/4/1)
Magika pebin
Reporter abuse_ch
Tags:exe LummaStealer

Intelligence

File Origin
# of uploads :
1
# of downloads :
466
Origin country :
NL NL
Vendor Threat Intelligence
Detection(s):
Win.Packed.Msilzilla-10042543-0
Create hunting rule

Verdict:
Malicious
Score:
90.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67bebe5ba0fd713c335ce658
Tags:
virus micro msil
Result
Verdict:
Malware
Maliciousness:

Behaviour
Unauthorized injection to a recently created process
Restart of the analyzed sample
Searching for synchronization primitives
DNS request
Connection attempt
Sending a custom TCP request
Launching the default Windows debugger (dwwin.exe)
Using the Windows Management Instrumentation requests
Сreating synchronization primitives
Searching for the window
Query of malicious DNS domain
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated obfuscated packed packed packer_detected
Link:
https://www.filescan.io/uploads/67bebdd96222db7f23dbf216/reports/603df916-5901-42a6-a535-b83dd3e40825/overview
Verdict:
Malicious
Labled as:
Lazy.Generic
Link:
https://www.hybrid-analysis.com/sample/81a3511eca347508cbbc82762acc597ef90ffd7ea4eb3b8a67f68312a1e7c3a8
Result
Verdict:
MALICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Verdict:
Suspicious
Link:
https://analyze.intezer.com/analyses/1a121941-9612-4f39-b1bc-ad1f99cc6cab
Result
Threat name:
LummaC Stealer
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1624335
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Contains functionality to inject code into remote processes
Found malware configuration
Found many strings related to Crypto-Wallets (likely being stolen)
Injects a PE file into a foreign processes
Joe Sandbox ML detected suspicious sample
Multi AV Scanner detection for submitted file
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Query firmware table information (likely to detect VMs)
Sample uses string decryption to hide its real strings
Suricata IDS alerts for network traffic
Tries to harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal ftp login credentials
Tries to steal Crypto Currency Wallets
Yara detected LummaC Stealer
Behaviour
Behavior Graph:
Download SVG
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/81a3511eca347508cbbc82762acc597ef90ffd7ea4eb3b8a67f68312a1e7c3a8
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/81a3511eca347508cbbc82762acc597ef90ffd7ea4eb3b8a67f68312a1e7c3a8/
Threat name:
Win32.Trojan.Nekark
Create hunting rule
Status:
Malicious
First seen:
2025-02-25 13:22:13 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
21 of 24 (87.50%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=qgrvchwkgr2qrs54qj3cvtczp34q77l6utvtxcth62brfiphyoua._file
Verdict:
malicious
Label(s):
lummastealer
Create hunting rule
Similar samples:
error
LummaStealer
Result
Malware family:
n/a
Score:
  7/10
Tags:
discovery spyware stealer
Link:
https://tria.ge/reports/250226-hyavqaxlz2/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Program crash
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Checks installed software on the system
Reads user/profile data of local email clients
Verdict:
Malicious
Tags:
Win.Packed.Msilzilla-10042543-0 lumma c2 lumma_stealer stealer
YARA:
n/a
Link:
https://app.threat.zone/submission/a0382cd1-9e9b-4ad3-848d-4b5fd376c00a
Unpacked files
SH256 hash:
81a3511eca347508cbbc82762acc597ef90ffd7ea4eb3b8a67f68312a1e7c3a8
MD5 hash:
4c3217fb087612b958ad7b14061b66d4
SHA1 hash:
6c7a408303380197e1689f426a30a50f9a4a5fac
Link:
https://www.unpac.me/results/a0b8299c-585a-4a76-a3b4-7ca6ce923be0/
SH256 hash:
df607f779ca3c85a77be300427e6a6139220099c9b2752a9f7ead2de0f222be7
MD5 hash:
09f0583521d1c637b43af631d9613934
SHA1 hash:
2fc2a147a797b081c63293f8f69e258cb62a19ad
Detections:
LummaStealer
Create hunting rule
Link:
https://www.unpac.me/results/a0b8299c-585a-4a76-a3b4-7ca6ce923be0/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.87
Link:
https://yomi.yoroi.company/submissions/81a3511eca347508cbbc82762acc597ef90ffd7ea4eb3b8a67f68312a1e7c3a8

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:NET
Create hunting rule
Author:malware-lu
Rule name:NETexecutableMicrosoft
Create hunting rule
Author:malware-lu
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:Sus_Obf_Enc_Spoof_Hide_PE
Create hunting rule
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

LummaStealer

Executable exe 81a3511eca347508cbbc82762acc597ef90ffd7ea4eb3b8a67f68312a1e7c3a8

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3452033/
  
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
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (GUARD_CF)high

Comments