MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4a6f6df6942d41b1e9ae60a661ea7fb828563638dedf57af3c26720d99c49ed1. 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: 18


Intelligence 18 IOCs YARA 4 File information Comments

SHA256 hash: 4a6f6df6942d41b1e9ae60a661ea7fb828563638dedf57af3c26720d99c49ed1
SHA3-384 hash: 43a429be9ee37649b66db8a955f37d36fefe6ba89c45e29c94ef90734e1161b6d6cbebc4d45a780c7901cdab690140c2
SHA1 hash: 30e0996b2e5280b5f954d9d82ec1ca9f2bed3cf5
MD5 hash: e8aab10af1b1ecae7880d2184ec91298
humanhash: winter-sodium-michigan-lemon
File name:i0q3uva.exe
Download: download sample
Signature LummaStealer
File size:1'373'184 bytes
First seen:2025-08-19 14:34:09 UTC
Last seen:2025-08-19 16:20:19 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 47d46ce0699d66fc655f27ce58653f77 (14 x LummaStealer, 2 x Stealc, 1 x Amadey)
ssdeep 24576:xRaP10vxZsz3mb0rHoTS6a2Em88LMLfxz8ewMkJvDcbPx7UAcX:xRagx2zWgrHgS6L5ML5zYrvD+PlU7
Threatray 488 similar samples on MalwareBazaar
TLSH T1C755D019AC7A90D6FCD340F16B5A9111F423BD378F382EEB81E4A7601956DED093E236
TrID 63.5% (.EXE) Win64 Executable (generic) (10522/11/4)
12.2% (.EXE) OS/2 Executable (generic) (2029/13)
12.0% (.EXE) Generic Win/DOS Executable (2002/3)
12.0% (.EXE) DOS Executable Generic (2000/1)
Magika pebin
Reporter abuse_ch
Tags:exe LummaStealer

Intelligence


File Origin
# of uploads :
2
# of downloads :
62
Origin country :
SE SE
Vendor Threat Intelligence
Malware family:
ID:
1
File name:
i0q3uva.exe
Verdict:
Malicious activity
Analysis date:
2025-08-19 14:43:17 UTC
Tags:
lumma stealer auto-sch auto-startup loader autoit amadey botnet

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
90.2%
Tags:
virus
Result
Verdict:
Malware
Maliciousness:

Behaviour
Launching a process
DNS request
Connection attempt
Sending a custom TCP request
Creating a window
Using the Windows Management Instrumentation requests
Сreating synchronization primitives
Forced shutdown of a system process
Unauthorized injection to a system process
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
fingerprint microsoft_visual_cc packed
Result
Threat name:
LummaC Stealer
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Signature
Allocates memory in foreign processes
C2 URLs / IPs found in malware configuration
Contains functionality to start a terminal service
Detected CypherIt Packer
Drops PE files with a suspicious file extension
Found malware configuration
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
Sigma detected: Drops script at startup location
Sigma detected: Search for Antivirus process
Sigma detected: Silenttrinity Stager Msbuild Activity
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
Tries to steal from password manager
Uses schtasks.exe or at.exe to add and modify task schedules
Writes to foreign memory regions
Yara detected LummaC Stealer
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1760275 Sample: i0q3uva.exe Startdate: 19/08/2025 Architecture: WINDOWS Score: 100 92 microsoft-telemetry.cc 2->92 94 cursilibim.ru 2->94 96 9 other IPs or domains 2->96 116 Suricata IDS alerts for network traffic 2->116 118 Found malware configuration 2->118 120 Multi AV Scanner detection for submitted file 2->120 122 7 other signatures 2->122 13 i0q3uva.exe 2->13         started        16 explorer.exe 2->16         started        18 explorer.exe 2->18         started        20 HermesKey.bat 2->20         started        signatures3 process4 signatures5 140 Writes to foreign memory regions 13->140 142 Allocates memory in foreign processes 13->142 144 Injects a PE file into a foreign processes 13->144 22 MSBuild.exe 1 13->22         started        27 HermesKey.bat 16->27         started        process6 dnsIp7 98 cursilibim.ru 144.172.106.140, 443, 49691, 49727 PONYNETUS United States 22->98 100 cnr-software.ru 31.31.196.134, 49733, 80 AS-REGRU Russian Federation 22->100 82 C:\Users\user\...\TVJEBT76T8O27IKYI.exe, PE32 22->82 dropped 130 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 22->130 132 Query firmware table information (likely to detect VMs) 22->132 134 Tries to harvest and steal ftp login credentials 22->134 136 3 other signatures 22->136 29 TVJEBT76T8O27IKYI.exe 23 22->29         started        32 chrome.exe 22->32         started        35 chrome.exe 22->35         started        37 2 other processes 22->37 file8 signatures9 process10 dnsIp11 88 C:\Users\user\AppData\Local\...\nsExec.dll, PE32 29->88 dropped 39 cmd.exe 1 29->39         started        90 192.168.2.5, 138, 443, 49493 unknown unknown 32->90 42 chrome.exe 32->42         started        45 chrome.exe 32->45         started        47 chrome.exe 35->47         started        49 chrome.exe 35->49         started        file12 process13 dnsIp14 124 Detected CypherIt Packer 39->124 126 Drops PE files with a suspicious file extension 39->126 128 Uses schtasks.exe or at.exe to add and modify task schedules 39->128 51 cmd.exe 4 39->51         started        54 conhost.exe 39->54         started        104 www.google.com 142.250.64.100, 443, 49696, 49700 GOOGLEUS United States 42->104 106 play.google.com 142.250.65.238, 443, 49707, 49708 GOOGLEUS United States 42->106 114 3 other IPs or domains 42->114 108 142.250.176.196, 443, 49715, 49720 GOOGLEUS United States 47->108 110 142.250.65.170, 443, 49722, 49723 GOOGLEUS United States 47->110 112 142.250.80.78, 443, 49724, 49725 GOOGLEUS United States 47->112 signatures15 process16 file17 78 C:\Users\user\AppData\...\Difficulty.pif, PE32 51->78 dropped 56 Difficulty.pif 17 51->56         started        61 extrac32.exe 16 51->61         started        63 tasklist.exe 1 51->63         started        65 2 other processes 51->65 process18 dnsIp19 102 microsoft-telemetry.cc 5.252.153.134, 49736, 49737, 49738 WORLDSTREAMNL Russian Federation 56->102 84 C:\Users\user\AppData\Local\...\HermesKey.lnk, MS 56->84 dropped 86 C:\Users\user\AppData\Local\...\HermesKey.bat, PE32 56->86 dropped 138 Contains functionality to start a terminal service 56->138 67 cmd.exe 56->67         started        70 cmd.exe 56->70         started        file20 signatures21 process22 file23 80 C:\Users\user\AppData\...\HermesKey.url, MS 67->80 dropped 72 conhost.exe 67->72         started        74 conhost.exe 70->74         started        76 schtasks.exe 70->76         started        process24
Gathering data
Threat name:
Win64.Trojan.LummaStealer
Status:
Malicious
First seen:
2025-08-19 14:42:31 UTC
File Type:
PE+ (Exe)
AV detection:
20 of 24 (83.33%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:lumma defense_evasion discovery spyware stealer
Behaviour
Enumerates system info in registry
Modifies data under HKEY_USERS
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of WriteProcessMemory
Browser Information Discovery
System Location Discovery: System Language Discovery
Drops file in Windows directory
Suspicious use of SetThreadContext
Accesses cryptocurrency files/wallets, possible credential harvesting
Enumerates connected drives
Modifies trusted root certificate store through registry
Lumma Stealer, LummaC
Lumma family
Malware Config
C2 Extraction:
https://cursilibim.ru/zajd
https://mastwin.in/qsaz
https://tiltyufaz.ru/tlxa
https://runmgov.ru/tixd
https://semipervaz.ru/xued
https://capitalior.ru/akts
https://retrofik.ru/jgur
https://shagkeg.ru/xkzd
https://copulardi.ru/xhza
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Unpacked files
SH256 hash:
4a6f6df6942d41b1e9ae60a661ea7fb828563638dedf57af3c26720d99c49ed1
MD5 hash:
e8aab10af1b1ecae7880d2184ec91298
SHA1 hash:
30e0996b2e5280b5f954d9d82ec1ca9f2bed3cf5
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:DebuggerCheck__API
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:golang_bin_JCorn_CSC846
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:pe_detect_tls_callbacks
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 4a6f6df6942d41b1e9ae60a661ea7fb828563638dedf57af3c26720d99c49ed1

(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
Reviews
IDCapabilitiesEvidence
WIN32_PROCESS_APICan Create Process and ThreadsKERNEL32.dll::CloseHandle
KERNEL32.dll::CreateThread
WIN_BASE_APIUses Win Base APIKERNEL32.dll::TerminateProcess
KERNEL32.dll::LoadLibraryExW
KERNEL32.dll::GetDriveTypeA
KERNEL32.dll::GetStartupInfoW
KERNEL32.dll::GetCommandLineA
KERNEL32.dll::GetCommandLineW
WIN_BASE_EXEC_APICan Execute other programsKERNEL32.dll::WriteConsoleW
KERNEL32.dll::FreeConsole
KERNEL32.dll::ReadConsoleW
KERNEL32.dll::SetStdHandle
KERNEL32.dll::GetConsoleMode
KERNEL32.dll::GetConsoleOutputCP
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CreateFileW
WIN_USER_APIPerforms GUI ActionsUSER32.dll::EmptyClipboard
USER32.dll::OpenClipboard
USER32.dll::CreateWindowExW

Comments