MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 7a87b801af709e8e510140f0f9523057793e7883ec2b6a4eab90fcf0ec20fd4a. 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 8 File information Comments

SHA256 hash: 7a87b801af709e8e510140f0f9523057793e7883ec2b6a4eab90fcf0ec20fd4a
SHA3-384 hash: c0702611b82e978ced3f12340b3f2cd2da620611b8906cbe73e7ca25fa5a248c53e8875b67f080c2cb675e5a7c497978
SHA1 hash: 8104fa08cfcc9066df3d16bfa1ebe119668c9097
MD5 hash: 641525fe17d5e9d483988eff400ad129
humanhash: minnesota-connecticut-hotel-four
File name:MCxU5Fj.exe
Download: download sample
Signature LummaStealer
File size:425'472 bytes
First seen:2025-03-05 08:10:45 UTC
Last seen:2025-03-07 15:53:34 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 6144:b/JuB2yKgy6uKbxH9TDbF+ov5H4LX5nviFKXJD+MZaq8FS48UP01PduTIGsVThM9:b/8Z0hKtHBnv5YLIM6MXhrd3M9
TLSH T17794124A73C0AA72C6A458B6C1E34D2243F996476537F34E3E850CD90F923B49B367CA
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 JAMESWT_WT
Tags:176-113-115-7 exe LummaStealer

Intelligence


File Origin
# of uploads :
2
# of downloads :
419
Origin country :
IT IT
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Unauthorized injection to a recently created process
Restart of the analyzed sample
Searching for synchronization primitives
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
Connection attempt to an infection source
Sending a TCP request to an infection source
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
obfuscated obfuscated obfuscated packed packed packer_detected
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:
LummaC Stealer, PureLog Stealer
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
.NET source code contains method to dynamically call methods (often used by packers)
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
Yara detected PureLog Stealer
Behaviour
Behavior Graph:
Threat name:
ByteCode-MSIL.Trojan.Jalapeno
Status:
Malicious
First seen:
2025-03-05 02:31:00 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
22 of 24 (91.67%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
lummastealer
Similar samples:
Result
Malware family:
n/a
Score:
  7/10
Tags:
discovery spyware stealer
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Browser Information Discovery
Program crash
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Accesses cryptocurrency files/wallets, possible credential harvesting
Checks installed software on the system
Reads user/profile data of local email clients
Reads user/profile data of web browsers
Verdict:
Malicious
Tags:
Win.Packed.Msilzilla-10042543-0 c2 stealer lumma_stealer lumma
YARA:
n/a
Unpacked files
SH256 hash:
43bf4be3ee1475cb00a7a9ea6e589e92d3b5812f83fa34cc5cac1efcd74f6198
MD5 hash:
f353f4dc223890acea7f32bfd48b90f9
SHA1 hash:
c47a98563e943b6f73c2298c469b8660b7bef3f4
Detections:
win_lumma_auto LummaStealer
SH256 hash:
7a87b801af709e8e510140f0f9523057793e7883ec2b6a4eab90fcf0ec20fd4a
MD5 hash:
641525fe17d5e9d483988eff400ad129
SHA1 hash:
8104fa08cfcc9066df3d16bfa1ebe119668c9097
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:DotNet_Reactor
Author:@bartblaze
Description:Identifies .NET Reactor, which offers .NET code protection such as obfuscation, encryption and so on.
Rule name:MD5_Constants
Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:NET
Author:malware-lu
Rule name:NETexecutableMicrosoft
Author:malware-lu
Rule name:pe_imphash
Rule name:PureCrypter
Author:@bartblaze
Description:Identifies PureCrypter, .NET loader and obfuscator.
Reference:https://malpedia.caad.fkie.fraunhofer.de/details/win.purecrypter
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash
Rule name:Sus_Obf_Enc_Spoof_Hide_PE
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 7a87b801af709e8e510140f0f9523057793e7883ec2b6a4eab90fcf0ec20fd4a

(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

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