MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 26acb88b05439d450a3808fae487065a77bbe3fe9942eb89c43ed1857b4962e5. 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 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 26acb88b05439d450a3808fae487065a77bbe3fe9942eb89c43ed1857b4962e5
SHA3-384 hash: 1c7643943e5186b144febfd955d9cd83b104f6b2ddfd283f1fe07da4d3708a391e5e0458d76afcfe85e301b06d797b78
SHA1 hash: d3e053dabb639c37485a1c0c92abd7fe2ff42d42
MD5 hash: 9c6cd36ea75e87c68ce46d1ccb7d0ba5
humanhash: coffee-zulu-item-bulldog
File name:gyazowin.exe
Download: download sample
Signature LummaStealer
Create hunting rule
File size:371'712 bytes
First seen:2025-03-19 19:30:46 UTC
Last seen:2025-03-21 20:29:12 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 4044a08bb46cb5d99a7c173c2742fad9 (2 x LummaStealer)
ssdeep 6144:RcCeXkrLCh4ZAsIljwUOSerupGfKvMNN/t2KgS9A8f2AzzbRSBAOz6+HHpLApm:aCeXRh4Z/xUpetrN0Kn9AezzbsBo+1I
TLSH T136848D21FA82D072C27306308F25EF7556FD7B6049329EA777E84A2D1F74481DA36B62
TrID 40.3% (.EXE) Win64 Executable (generic) (10522/11/4)
19.3% (.EXE) Win16 NE executable (generic) (5038/12/1)
17.2% (.EXE) Win32 Executable (generic) (4504/4/1)
7.7% (.EXE) OS/2 Executable (generic) (2029/13)
7.6% (.EXE) Generic Win/DOS Executable (2002/3)
Magika pebin
Reporter aachum
Tags:exe LummaStealer


Avatar
iamaachum
https://github.com/deripascod/romawer/raw/refs/heads/main/gyazowin.exe

C2: https://post-to-me.com/track_prt.php?sub=0&cc=NL

Intelligence

File Origin
# of uploads :
4
# of downloads :
423
Origin country :
ES ES
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
gyazowin.exe
Verdict:
Malicious activity
Analysis date:
2025-03-19 20:44:54 UTC
Tags:
loader github stealer lumma
Link:
https://app.any.run/tasks/b4f253c3-128d-4fe3-9ca8-949ee6db3080

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
92.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67db1b7e115e7b48b48ed256
Tags:
n/a
Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Sending an HTTP GET request
Creating a window
Sending an HTTP GET request to an infection source
Creating a file in the %temp% directory
Searching for synchronization primitives
Creating a process from a recently created file
Running batch commands
Launching a process
DNS request
Connection attempt
Sending a custom TCP request
Creating a file
Creating a process with a hidden window
Using the Windows Management Instrumentation requests
Query of malicious DNS domain
Connection attempt to an infection source
Sending a TCP request to an infection source
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Adding an exclusion to Microsoft Defender
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
adaptive-context fingerprint microsoft_visual_cc
Link:
https://www.filescan.io/uploads/67db1b805ca829f673223ee0/reports/47dc494c-c80e-4f85-a16b-7c6eff5d357a/overview
Verdict:
Malicious
Labled as:
Lazy.Generic
Link:
https://www.hybrid-analysis.com/sample/26acb88b05439d450a3808fae487065a77bbe3fe9942eb89c43ed1857b4962e5
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:
Unknown
Link:
https://analyze.intezer.com/analyses/44269b22-3470-4d03-90ef-47777cfffd60
Result
Threat name:
LummaC Stealer
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1643459
Signature
Adds a directory exclusion to Windows Defender
Antivirus detection for dropped file
Antivirus detection for URL or domain
Attempt to bypass Chrome Application-Bound Encryption
Detected unpacking (changes PE section rights)
Found API chain indicative of debugger detection
Found many strings related to Crypto-Wallets (likely being stolen)
Hides threads from debuggers
Joe Sandbox ML detected suspicious sample
Loading BitLocker PowerShell Module
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
PE file has nameless sections
Powershell drops PE file
Sigma detected: Invoke-Obfuscation CLIP+ Launcher
Sigma detected: Invoke-Obfuscation VAR+ Launcher
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: Suspicious Invoke-WebRequest Execution
Suspicious powershell command line found
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
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1643459 Sample: gyazowin.exe Startdate: 19/03/2025 Architecture: WINDOWS Score: 100 62 targett.top 2->62 64 raw.githubusercontent.com 2->64 66 2 other IPs or domains 2->66 104 Antivirus detection for URL or domain 2->104 106 Multi AV Scanner detection for dropped file 2->106 108 Multi AV Scanner detection for submitted file 2->108 110 7 other signatures 2->110 10 gyazowin.exe 1 17 2->10         started        14 Service.exe 2->14         started        17 Service.exe 2->17         started        signatures3 process4 dnsIp5 72 185.11.61.10, 49714, 80 VERTEX-ASRU Russian Federation 10->72 74 post-to-me.com 104.21.56.70, 443, 49713 CLOUDFLARENETUS United States 10->74 58 C:\Users\user\AppData\Local\...\8423.tmp.exe, PE32+ 10->58 dropped 60 C:\Users\user\AppData\...\ScreenSync[1].exe, PE32+ 10->60 dropped 19 8423.tmp.exe 1 3 10->19         started        118 Tries to harvest and steal ftp login credentials 14->118 120 Tries to harvest and steal browser information (history, passwords, etc) 14->120 122 Tries to steal Crypto Currency Wallets 14->122 22 chrome.exe 14->22         started        24 WerFault.exe 14->24         started        76 127.0.0.1 unknown unknown 17->76 124 Hides threads from debuggers 17->124 26 chrome.exe 17->26         started        29 WerFault.exe 17->29         started        file6 signatures7 process8 dnsIp9 112 Multi AV Scanner detection for dropped file 19->112 114 Found API chain indicative of debugger detection 19->114 116 Adds a directory exclusion to Windows Defender 19->116 31 Service.exe 19->31         started        35 cmd.exe 1 19->35         started        37 cmd.exe 1 19->37         started        39 conhost.exe 19->39         started        41 chrome.exe 22->41         started        78 192.168.2.4, 138, 443, 49711 unknown unknown 26->78 43 chrome.exe 26->43         started        signatures10 process11 dnsIp12 80 targett.top 104.21.72.121, 443, 49723, 49728 CLOUDFLARENETUS United States 31->80 92 Antivirus detection for dropped file 31->92 94 Multi AV Scanner detection for dropped file 31->94 96 Detected unpacking (changes PE section rights) 31->96 102 4 other signatures 31->102 45 WerFault.exe 21 16 31->45         started        98 Suspicious powershell command line found 35->98 100 Adds a directory exclusion to Windows Defender 35->100 47 powershell.exe 23 35->47         started        50 powershell.exe 14 16 37->50         started        82 142.250.81.238, 443, 49785, 49787 GOOGLEUS United States 41->82 84 142.251.40.228, 443, 49768, 49769 GOOGLEUS United States 41->84 86 play.google.com 142.251.35.174, 443, 49756, 49759 GOOGLEUS United States 43->86 88 plus.l.google.com 142.251.40.110, 443, 49753 GOOGLEUS United States 43->88 90 2 other IPs or domains 43->90 signatures13 process14 dnsIp15 126 Loading BitLocker PowerShell Module 47->126 128 Powershell drops PE file 47->128 54 WmiPrvSE.exe 47->54         started        68 github.com 140.82.114.3, 443, 49720 GITHUBUS United States 50->68 70 raw.githubusercontent.com 185.199.109.133, 443, 49721 FASTLYUS Netherlands 50->70 56 C:\Users\user\AppData\Local\...\Service.exe, PE32 50->56 dropped file16 signatures17 process18
Score:
84%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/26acb88b05439d450a3808fae487065a77bbe3fe9942eb89c43ed1857b4962e5
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/26acb88b05439d450a3808fae487065a77bbe3fe9942eb89c43ed1857b4962e5/
Threat name:
Win32.Exploit.Generic
Create hunting rule
Status:
Malicious
First seen:
2025-03-19 19:31:11 UTC
File Type:
PE (Exe)
Extracted files:
1
AV detection:
18 of 24 (75.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=e2wlrcyfiooukcrybd5ojbyglj33xy76tfboxcoeh3iyk62jmlsq._file
Result
Malware family:
lumma
Create hunting rule
Score:
  10/10
Tags:
family:lumma discovery execution persistence spyware stealer
Link:
https://tria.ge/reports/250319-x8fahsvkw9/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Browser Information Discovery
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Suspicious use of NtSetInformationThreadHideFromDebugger
Accesses cryptocurrency files/wallets, possible credential harvesting
Adds Run key to start application
Checks installed software on the system
Legitimate hosting services abused for malware hosting/C2
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Reads user/profile data of local email clients
Reads user/profile data of web browsers
Blocklisted process makes network request
Command and Scripting Interpreter: PowerShell
Downloads MZ/PE file
Lumma Stealer, LummaC
Lumma family
Malware Config
C2 Extraction:
https://targett.top/api
https://caliberc.today/api
https://pistolpra.bet/api
https://weaponwo.life/api
https://armamenti.world/api
https://selfdefens.bet/api
https://armoryarch.shop/api
https://blackeblast.run/api
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/f9967210-4480-469f-99b8-b162f085d0c2
Unpacked files
SH256 hash:
26acb88b05439d450a3808fae487065a77bbe3fe9942eb89c43ed1857b4962e5
MD5 hash:
9c6cd36ea75e87c68ce46d1ccb7d0ba5
SHA1 hash:
d3e053dabb639c37485a1c0c92abd7fe2ff42d42
Link:
https://www.unpac.me/results/d6609a96-ca0f-4705-b0a1-ac0be2e95fe4/
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/26acb88b05439d450a3808fae487065a77bbe3fe9942eb89c43ed1857b4962e5

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
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:golang_bin_JCorn_CSC846
Create hunting rule
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset

File information

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

Web download

LummaStealer

Executable exe 26acb88b05439d450a3808fae487065a77bbe3fe9942eb89c43ed1857b4962e5

(this sample)

  
Link
https://tria.ge/250319-xzc4ssz1gz/behavioral8
  
Dropping
LummaStealer
  
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 (HIGH_ENTROPY_VA)high
CHECK_PIEMissing Position-Independent Executable (PIE) Protectionhigh
Reviews
IDCapabilitiesEvidence
GDI_PLUS_APIInterfaces with Graphicsgdiplus.dll::GdiplusStartup
gdiplus.dll::GdiplusShutdown
gdiplus.dll::GdipGetImageEncodersSize
gdiplus.dll::GdipGetImageEncoders
gdiplus.dll::GdipAlloc
SHELL_APIManipulates System ShellSHELL32.dll::ShellExecuteExW
WIN32_PROCESS_APICan Create Process and ThreadsKERNEL32.dll::CloseHandle
WININET.dll::InternetCloseHandle
KERNEL32.dll::CreateThread
WIN_BASE_APIUses Win Base APIKERNEL32.dll::TerminateProcess
KERNEL32.dll::LoadLibraryW
KERNEL32.dll::LoadLibraryExW
KERNEL32.dll::GetStartupInfoW
KERNEL32.dll::GetCommandLineW
KERNEL32.dll::GetCommandLineA
WIN_BASE_EXEC_APICan Execute other programsKERNEL32.dll::WriteConsoleW
KERNEL32.dll::ReadConsoleW
KERNEL32.dll::SetStdHandle
KERNEL32.dll::GetConsoleCP
KERNEL32.dll::GetConsoleMode
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CreateFileW
KERNEL32.dll::DeleteFileW
KERNEL32.dll::GetTempFileNameW
WIN_REG_APICan Manipulate Windows RegistryADVAPI32.dll::RegCreateKeyExW
ADVAPI32.dll::RegSetValueExW
WIN_USER_APIPerforms GUI ActionsUSER32.dll::EmptyClipboard
USER32.dll::OpenClipboard
USER32.dll::CreateWindowExW

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