MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b422f4ef542446bcac80afc015c26e82fd783caa52c32d35ee44cda0614cffe9. 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: 13


Intelligence 13 IOCs YARA 31 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b422f4ef542446bcac80afc015c26e82fd783caa52c32d35ee44cda0614cffe9
SHA3-384 hash: ea718f2f4268ee26c4f0b2ef9a03232dee3b42ba5cbfbc2c9492b131e831b2f738c373c16762ae696715d99a2887e782
SHA1 hash: d60acd128df14e814fce1b225df46af7ea996a49
MD5 hash: 26891b36c3d2885bfb9c082b0b6727fd
humanhash: april-leopard-nevada-yankee
File name:Chrome_Update.exe
Download: download sample
Signature LummaStealer
Create hunting rule
File size:20'720'016 bytes
First seen:2024-09-12 10:07:40 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 40ab50289f7ef5fae60801f88d4541fc (59 x ValleyRAT, 49 x Gh0stRAT, 41 x OffLoader)
ssdeep 196608:l6IwqX5MZ0sP6Zxnsaag49K/BBZdBbx2kGY1DXZGX4M1ENrdkptPUmh/1L:l6Ir2Zj6zn7aguK/BBZd9x2FqDXMZP1L
Threatray 46 similar samples on MalwareBazaar
TLSH T16B27E002F540E537D642223188BB92C53335BC449E42874F7624FEFE7CBA5A81E67BA5
TrID 46.7% (.EXE) Inno Setup installer (107240/4/30)
25.0% (.CPL) Windows Control Panel Item (generic) (57583/11/19)
18.1% (.EXE) Win32 EXE PECompact compressed (generic) (41569/9/9)
4.5% (.EXE) Win64 Executable (generic) (10523/12/4)
1.9% (.EXE) Win32 Executable (generic) (4504/4/1)
Magika pebin
File icon (PE):PE icon
dhash icon e9e2eae6b696c6ec (11 x LummaStealer, 4 x Vidar, 2 x FickerStealer)
Reporter monitorsg
Tags:ClearFake exe LummaStealer signed

Code Signing Certificate

Organisation:INNOFLOW VINA COMPANY LIMITED
Issuer:GlobalSign GCC R45 EV CodeSigning CA 2020
Algorithm:sha256WithRSAEncryption
Valid from:2024-06-03T05:04:37Z
Valid to:2025-06-04T05:04:37Z
Serial number: 0252bd23f462efe212a000df
Intelligence: 2 malware samples on MalwareBazaar are signed with this code signing certificate
Cert Central Blocklist:This certificate is on the Cert Central blocklist
Thumbprint Algorithm:SHA256
Thumbprint: 57d0c81ca001551dbeb69d7dd7d7491cfe0ce16134d9f63b92cf350557aa9a67
Source:This information was brought to you by ReversingLabs A1000 Malware Analysis Platform


Avatar
monitorsg
hXXps://bsc-dataseed3.defibit[.]io (Binance 0xC4D41e800A4C05ce291f6AE4baF49b002a081290) --> hXXps://quickresource[.]xyz/VWBhLwJg/ --> hXXps://dl.dropboxusercontent[.]com (download)

Intelligence

File Origin
# of uploads :
1
# of downloads :
404
Origin country :
US US
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Chrome_Update.exe
Verdict:
Suspicious activity
Analysis date:
2024-09-12 10:08:29 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/0412dbed-20b6-43ed-b97c-40c76ecf5a13

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
99.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=66e2bd87751db35a8b9f8004
Tags:
Discovery Execution Generic Network Stealth Trojan
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %temp% subdirectories
Creating a window
Creating a process from a recently created file
Сreating synchronization primitives
Searching for synchronization primitives
Restart of the analyzed sample
Moving a file to the %temp% subdirectory
Creating a file
Moving a recently created file
Running batch commands
Creating a process with a hidden window
Launching a process
Using the Windows Management Instrumentation requests
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
anti-vm embarcadero_delphi fingerprint installer lolbin overlay packed setupapi shell32
Link:
https://www.filescan.io/uploads/66e2bd86a9c26f9f5f25f838/reports/1b813fd1-81e6-46ab-8cba-134a11a812e9/overview
Verdict:
Malicious
Labled as:
Win/grayware_confidence_60%
Link:
https://www.hybrid-analysis.com/sample/b422f4ef542446bcac80afc015c26e82fd783caa52c32d35ee44cda0614cffe9
Result
Verdict:
UNKNOWN
Result
Threat name:
LummaC
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
42 / 100
Link:
https://www.joesandbox.com/analysis/1509982
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found malware configuration
LummaC encrypted strings found
Multi AV Scanner detection for domain / URL
Sample uses string decryption to hide its real strings
Yara detected LummaC Stealer
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1509982 Sample: Chrome_Update.exe Startdate: 12/09/2024 Architecture: WINDOWS Score: 42 71 Multi AV Scanner detection for domain / URL 2->71 73 Found malware configuration 2->73 75 Antivirus detection for URL or domain 2->75 77 3 other signatures 2->77 10 Chrome_Update.exe 2 2->10         started        process3 file4 65 C:\Users\user\AppData\...\Chrome_Update.tmp, PE32 10->65 dropped 13 Chrome_Update.tmp 3 5 10->13         started        process5 file6 67 C:\Users\user\AppData\Local\...\_setup64.tmp, PE32+ 13->67 dropped 69 C:\Users\user\AppData\Local\...\_iscrypt.dll, PE32 13->69 dropped 16 Chrome_Update.exe 2 13->16         started        19 conhost.exe 13->19         started        21 tasklist.exe 1 13->21         started        23 find.exe 1 13->23         started        process7 file8 55 C:\Users\user\AppData\...\Chrome_Update.tmp, PE32 16->55 dropped 25 Chrome_Update.tmp 5 59 16->25         started        process9 file10 57 C:\Users\user\...\wmfclearkey.dll (copy), PE32+ 25->57 dropped 59 C:\Users\user\...\vcruntime140_1.dll (copy), PE32+ 25->59 dropped 61 C:\Users\user\...\vcruntime140.dll (copy), PE32+ 25->61 dropped 63 39 other files (none is malicious) 25->63 dropped 28 file.exe 25->28         started        31 cmd.exe 1 25->31         started        33 cmd.exe 1 25->33         started        35 4 other processes 25->35 process11 signatures12 79 LummaC encrypted strings found 28->79 37 conhost.exe 31->37         started        39 tasklist.exe 1 31->39         started        41 find.exe 1 31->41         started        43 conhost.exe 33->43         started        51 2 other processes 33->51 45 conhost.exe 35->45         started        47 conhost.exe 35->47         started        49 conhost.exe 35->49         started        53 6 other processes 35->53 process13
Score:
33%
Verdict:
Susipicious
File Type:
PE
Link:
https://malprob.io/report/b422f4ef542446bcac80afc015c26e82fd783caa52c32d35ee44cda0614cffe9
Gathering data
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=wqrpj32uerdlzleav7ablqtoql6xqpfkklbs2npoitg2aykm77uq._file
Verdict:
malicious
Similar samples:
0bc0f7f9471990917d43fdbf85339afc9b11c14f12e34a2e94b40a99685434f2
LummaStealer
315e6d1736e2ec8465a172d289a6520ec127e1b02190716b383226275672170b
LummaStealer
7143a5a1be6622001a7fdc52367a92155125504715dd96b38df6e67a6d48bd0c
LummaStealer
8e944489f1cab34f71c6b4feb3eaf4dd4110be9893a78856534fd6054e439b7b
LummaStealer
965ffe53515fbfed4dcb587c263151b2ce0d0136e1f6e354836d805070b8590c
LummaStealer
e11dc8d2e7fba91857df6a38c6e64ad491a9271b9f0bfda937680dd0da453665
LummaStealer
+ 36 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  7/10
Tags:
discovery
Link:
https://tria.ge/reports/240912-l571ks1hkd/
Behaviour
Checks processor information in registry
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Enumerates processes with tasklist
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/e0f1f156-1815-4cc2-8433-ae44ad762f2c
Malware family:
DarkGate
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/b422f4ef5424/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/b422f4ef542446bcac80afc015c26e82fd783caa52c32d35ee44cda0614cffe9

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:Borland
Create hunting rule
Author:malware-lu
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: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:Detect_APT29_WINELOADER_Backdoor
Create hunting rule
Author:daniyyell
Description:Detects APT29's WINELOADER backdoor variant used in phishing campaigns, this rule also detect bad pdf,shtml,htm and vbs or maybe more depends
Reference:https://cloud.google.com/blog/topics/threat-intelligence/apt29-wineloader-german-political-parties
Rule name:Detect_Malicious_VBScript_Base64
Create hunting rule
Author:daniyyell
Description:Detects malicious VBScript patterns, including Base64 decoding, file operations, and PowerShell.
Rule name:golang
Create hunting rule
Rule name:golang_binary_string
Create hunting rule
Description:Golang strings present
Rule name:html_auto_download_b64
Create hunting rule
Author:Tdawg
Description:html auto download
Rule name:IDATDropper
Create hunting rule
Author:NDA0E
Description:Detects files containing embedded JavaScript; the JS executes a PowerShell command which either downloads IDATLoader in an archive, or an executable (not IDATLoader) which is loaded into memory. The modified PE will only run if it's executed as an HTML Application (.hta).
Rule name:identity_golang
Create hunting rule
Author:Eric Yocam
Description:find Golang malware
Rule name:pe_detect_tls_callbacks
Create hunting rule
Rule name:PE_Digital_Certificate
Create hunting rule
Author:albertzsigovits
Rule name:PE_Potentially_Signed_Digital_Certificate
Create hunting rule
Author:albertzsigovits
Rule name:RANSOMWARE
Create hunting rule
Author:ToroGuitar
Rule name:SEH__vectored
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:shellcode
Create hunting rule
Author:nex
Description:Matched shellcode byte patterns
Rule name:test_Malaysia
Create hunting rule
Author:rectifyq
Description:Detects file containing malaysia string
Rule name:ThreadControl__Context
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:vmdetect
Create hunting rule
Author:nex
Description:Possibly employs anti-virtualization techniques
Rule name:without_attachments
Create hunting rule
Author:Antonio Sanchez <asanchez@hispasec.com>
Description:Rule to detect the no presence of any attachment
Reference:http://laboratorio.blogs.hispasec.com/
Rule name:with_urls
Create hunting rule
Author:Antonio Sanchez <asanchez@hispasec.com>
Description:Rule to detect the presence of an or several urls
Reference:http://laboratorio.blogs.hispasec.com/

File information

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

Web download

LummaStealer

Executable exe b422f4ef542446bcac80afc015c26e82fd783caa52c32d35ee44cda0614cffe9

(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_DLL_CHARACTERISTICSMissing dll Security Characteristics (HIGH_ENTROPY_VA)high
Reviews
IDCapabilitiesEvidence
AUTH_APIManipulates User Authorizationadvapi32.dll::AllocateAndInitializeSid
advapi32.dll::ConvertSidToStringSidW
advapi32.dll::ConvertStringSecurityDescriptorToSecurityDescriptorW
advapi32.dll::EqualSid
advapi32.dll::FreeSid
SECURITY_BASE_APIUses Security Base APIadvapi32.dll::AdjustTokenPrivileges
advapi32.dll::GetTokenInformation
WIN32_PROCESS_APICan Create Process and Threadskernel32.dll::CreateProcessW
advapi32.dll::OpenProcessToken
advapi32.dll::OpenThreadToken
kernel32.dll::CloseHandle
kernel32.dll::CreateThread
WIN_BASE_APIUses Win Base APIkernel32.dll::LoadLibraryA
kernel32.dll::LoadLibraryExW
kernel32.dll::LoadLibraryW
kernel32.dll::GetDriveTypeW
kernel32.dll::GetVolumeInformationW
kernel32.dll::GetSystemInfo
WIN_BASE_IO_APICan Create Fileskernel32.dll::CreateDirectoryW
kernel32.dll::CreateFileW
kernel32.dll::DeleteFileW
kernel32.dll::GetWindowsDirectoryW
kernel32.dll::GetSystemDirectoryW
kernel32.dll::GetFileAttributesW
WIN_BASE_USER_APIRetrieves Account Informationadvapi32.dll::LookupPrivilegeValueW
WIN_REG_APICan Manipulate Windows Registryadvapi32.dll::RegOpenKeyExW
advapi32.dll::RegQueryValueExW
WIN_USER_APIPerforms GUI Actionsuser32.dll::PeekMessageW
user32.dll::CreateWindowExW

Comments