MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 21fe74d256855f3750198ca785fc5dd0344f663fb9c7248ed22b00193efd322a. 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: 16


Intelligence 16 IOCs YARA 6 File information Comments

SHA256 hash: 21fe74d256855f3750198ca785fc5dd0344f663fb9c7248ed22b00193efd322a
SHA3-384 hash: baec27a64309acfbd5e98e1de707acd29690502ef2a3dd19b541d3abf77bc45bd0f0da48b6732751791e38dab9a5b07c
SHA1 hash: 8136de420a823de5b770bbf7ffdadd3c8ba61a87
MD5 hash: 473b9ad33b858c5c75efa39223c6ae4a
humanhash: seven-music-winner-eight
File name:473b9ad33b858c5c75efa39223c6ae4a.exe
Download: download sample
Signature LummaStealer
File size:295'976 bytes
First seen:2024-08-25 09:21:09 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'649 x AgentTesla, 19'452 x Formbook, 12'201 x SnakeKeylogger)
ssdeep 6144:O3pKVYwuuMivAwjDyNRmVPFgLnPD+aWSeLWLJn2sByjkEO:Sdi4wCRY6LPKaW/S5yIEO
TLSH T1CE5422659EA149A5EB9817337417B268CE38D8F299134FE921224C33F9A734436573CF
TrID 67.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
9.7% (.EXE) Win64 Executable (generic) (10523/12/4)
6.0% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
4.1% (.EXE) Win32 Executable (generic) (4504/4/1)
Magika pebin
Reporter abuse_ch
Tags:exe LummaStealer

Intelligence


File Origin
# of uploads :
1
# of downloads :
354
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
66c8f1851766d_lename1.exe
Verdict:
Malicious activity
Analysis date:
2024-08-23 21:01:18 UTC
Tags:
lumma stealer

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
94.1%
Tags:
Encryption Static Nekark
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Launching a process
Creating a file
DNS request
Connection attempt
Sending a custom TCP request
Behavior that indicates a threat
Connection attempt to an infection source
Query of malicious DNS domain
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
overlay packed
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.
Result
Threat name:
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
.NET source code contains very large array initializations
AI detected suspicious sample
Allocates memory in foreign processes
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Contains functionality to inject code into remote processes
Found malware configuration
Injects a PE file into a foreign processes
LummaC encrypted strings found
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for submitted file
Sample uses string decryption to hide its real strings
Suricata IDS alerts for network traffic
Writes to foreign memory regions
Yara detected LummaC Stealer
Behaviour
Behavior Graph:
Threat name:
Win32.Spyware.Lummastealer
Status:
Malicious
First seen:
2024-08-23 21:01:19 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
23 of 24 (95.83%)
Threat level:
  2/5
Verdict:
malicious
Result
Malware family:
n/a
Score:
  5/10
Tags:
discovery
Behaviour
Suspicious use of WriteProcessMemory
Program crash
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Unpacked files
SH256 hash:
9535bd6eaa04657d6912ec43f879518186974dfc768118f4e2f88607c5fd5b1c
MD5 hash:
1cae5aa7daef23c2b3a132f780e19223
SHA1 hash:
3ec55c94a95dd954f50d55723a57a068de32b960
Detections:
LummaStealer
SH256 hash:
21fe74d256855f3750198ca785fc5dd0344f663fb9c7248ed22b00193efd322a
MD5 hash:
473b9ad33b858c5c75efa39223c6ae4a
SHA1 hash:
8136de420a823de5b770bbf7ffdadd3c8ba61a87
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:NET
Author:malware-lu
Rule name:PE_Digital_Certificate
Author:albertzsigovits
Rule name:pe_imphash
Rule name:PE_Potentially_Signed_Digital_Certificate
Author:albertzsigovits
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash

File information


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

Web download

LummaStealer

Executable exe 21fe74d256855f3750198ca785fc5dd0344f663fb9c7248ed22b00193efd322a

(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
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (GUARD_CF)high

Comments