MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d4f4d50f971d5b6814a3583f939b98c666534ab630dc01d457c055b2454fe94c. 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


Stealc


Vendor detections: 15


Intelligence 15 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: d4f4d50f971d5b6814a3583f939b98c666534ab630dc01d457c055b2454fe94c
SHA3-384 hash: 6c85ebfa2fbb4d2b284a274b356db8d24e1e2abfef167972fca763ff86dc078f652ee65f4a269bd95944e0da1eb7c91e
SHA1 hash: 1128b53f01281a570878f633679dbfc98251d40a
MD5 hash: 9bcd53e25e928bf4312b8e99456eb704
humanhash: fifteen-massachusetts-virginia-three
File name:file
Download: download sample
Signature Stealc
Create hunting rule
File size:451'073 bytes
First seen:2024-04-16 08:10:33 UTC
Last seen:2024-04-16 08:28:52 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash b0e7b1f470281f5f864a1cf1dacc65ba (2 x Stealc)
ssdeep 6144:L7N7Lc13hvoeeCGhKtaBJe8U7x2TampVQzZCR8h0fbku9LuTGK:L7N7YTo53ji8U74TNpVQdCR8+BLKGK
TLSH T1A3A4F15C7360E832D63249704E29CBE82EEEBDF3DD6D89932650A61F1D742E1D913326
TrID 39.5% (.EXE) InstallShield setup (43053/19/16)
28.6% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
9.6% (.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)
File icon (PE):PE icon
dhash icon 1370ecc2ccf0331a (1 x Stealc)
Reporter Bitsight
Tags:exe Stealc


Avatar
Bitsight
url: http://185.172.128.59/ISetup7.exe

Intelligence

File Origin
# of uploads :
2
# of downloads :
307
Origin country :
US US
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
d4f4d50f971d5b6814a3583f939b98c666534ab630dc01d457c055b2454fe94c.exe
Verdict:
Malicious activity
Analysis date:
2024-04-16 08:11:12 UTC
Tags:
gcleaner loader stealer stealc
Link:
https://app.any.run/tasks/a9d72213-1762-4e17-855e-baf1a474891e

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file in the %temp% directory
Сreating synchronization primitives
Creating a process from a recently created file
Searching for synchronization primitives
Creating a file
DNS request
Connecting to a non-recommended domain
Connection attempt
Sending an HTTP POST request
Running batch commands
Creating a process with a hidden window
Launching a process
Launching the default Windows debugger (dwwin.exe)
Transferring files using the Background Intelligent Transfer Service (BITS)
Sending a custom TCP request
Connection attempt to an infection source
Sending an HTTP GET request to an infection source
Verdict:
No Threat
Threat level:
  10/10
Confidence:
100%
Tags:
fingerprint overlay
Link:
https://www.filescan.io/uploads/661e329a75339da04f92f959/reports/03de49c0-19f1-4934-8ba9-487fe9b2e3e6/overview
Verdict:
Malicious
Labled as:
Malware
Link:
https://www.hybrid-analysis.com/sample/d4f4d50f971d5b6814a3583f939b98c666534ab630dc01d457c055b2454fe94c
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.
Malware family:
Stealc
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/21552308-b4ec-49e0-86bd-6498b32a5620
Result
Threat name:
Mars Stealer, PureLog Stealer, Stealc, V
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1426551
Signature
.NET source code contains method to dynamically call methods (often used by packers)
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
C2 URLs / IPs found in malware configuration
Checks if the current machine is a virtual machine (disk enumeration)
Contains functionality to inject code into remote processes
Detected unpacking (changes PE section rights)
Detected unpacking (overwrites its own PE header)
Found evasive API chain (may stop execution after checking locale)
Found malware configuration
Found many strings related to Crypto-Wallets (likely being stolen)
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for submitted file
Queries sensitive disk information (via WMI, Win32_DiskDrive, often done to detect virtual machines)
Queries sensitive service information (via WMI, Win32_LogicalDisk, often done to detect sandboxes)
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Sample uses string decryption to hide its real strings
Searches for specific processes (likely to inject)
Snort IDS alert for network traffic
Tries to harvest and steal Bitcoin Wallet information
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 Mail credentials (via file / registry access)
Yara detected Generic Downloader
Yara detected Mars stealer
Yara detected PureLog Stealer
Yara detected Stealc
Yara detected Vidar stealer
Yara detected zgRAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1426551 Sample: file.exe Startdate: 16/04/2024 Architecture: WINDOWS Score: 100 44 westus2-2.in.applicationinsights.azure.com 2->44 46 westus2-2.in.ai.privatelink.monitor.azure.com 2->46 48 2 other IPs or domains 2->48 66 Snort IDS alert for network traffic 2->66 68 Multi AV Scanner detection for domain / URL 2->68 70 Found malware configuration 2->70 72 13 other signatures 2->72 9 file.exe 2->9         started        signatures3 process4 signatures5 74 Detected unpacking (changes PE section rights) 9->74 76 Detected unpacking (overwrites its own PE header) 9->76 78 Contains functionality to inject code into remote processes 9->78 80 Injects a PE file into a foreign processes 9->80 12 file.exe 1 3 9->12         started        process6 dnsIp7 50 185.172.128.90, 49705, 80 NADYMSS-ASRU Russian Federation 12->50 52 185.172.128.228, 49706, 49708, 80 NADYMSS-ASRU Russian Federation 12->52 54 185.172.128.59, 49707, 80 NADYMSS-ASRU Russian Federation 12->54 36 C:\Users\user\AppData\Local\Temp\u3k0.1.exe, PE32 12->36 dropped 38 C:\Users\user\AppData\Local\Temp\u3k0.0.exe, PE32 12->38 dropped 16 u3k0.0.exe 69 12->16         started        21 u3k0.1.exe 22 8 12->21         started        file8 process9 dnsIp10 40 185.172.128.209, 49709, 80 NADYMSS-ASRU Russian Federation 16->40 28 C:\Users\user\AppData\...\softokn3[1].dll, PE32 16->28 dropped 30 C:\Users\user\AppData\Local\...\nss3[1].dll, PE32 16->30 dropped 32 C:\Users\user\AppData\...\mozglue[1].dll, PE32 16->32 dropped 34 9 other files (5 malicious) 16->34 dropped 56 Antivirus detection for dropped file 16->56 58 Detected unpacking (changes PE section rights) 16->58 60 Detected unpacking (overwrites its own PE header) 16->60 64 9 other signatures 16->64 23 WerFault.exe 16->23         started        42 svc.iolo.com 20.157.87.45, 49710, 49718, 80 MICROSOFT-CORP-MSN-AS-BLOCKUS United States 21->42 62 Checks if the current machine is a virtual machine (disk enumeration) 21->62 25 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 14 10 21->25         started        file11 signatures12 process13 signatures14 82 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 25->82 84 Queries sensitive disk information (via WMI, Win32_DiskDrive, often done to detect virtual machines) 25->84 86 Queries sensitive service information (via WMI, Win32_LogicalDisk, often done to detect sandboxes) 25->86
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/d4f4d50f971d5b6814a3583f939b98c666534ab630dc01d457c055b2454fe94c
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/d4f4d50f971d5b6814a3583f939b98c666534ab630dc01d457c055b2454fe94c/
Threat name:
Win32.Trojan.StealC
Create hunting rule
Status:
Malicious
First seen:
2024-04-16 08:11:07 UTC
File Type:
PE (Exe)
Extracted files:
50
AV detection:
17 of 23 (73.91%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=2t2nkd4xdvnwqffdla7zhg4yyztfgsvwgdoadvcxybk3erkp5fga._file
Verdict:
malicious
Result
Malware family:
zgrat
Create hunting rule
Score:
  10/10
Tags:
family:stealc family:zgrat discovery rat spyware stealer
Link:
https://tria.ge/reports/240416-j3ak7aeh71/
Behaviour
Checks SCSI registry key(s)
Checks processor information in registry
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Suspicious use of SetThreadContext
Accesses cryptocurrency files/wallets, possible credential harvesting
Checks installed software on the system
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Reads data files stored by FTP clients
Reads user/profile data of web browsers
Downloads MZ/PE file
Detect ZGRat V1
Stealc
ZGRat
Malware Config
C2 Extraction:
http://185.172.128.209
Unpacked files
SH256 hash:
9874c7bd9d008c8a7105c8e402813204d5c3ddc3fb8d1aaddbb0e19d65062dfb
MD5 hash:
999af7adf5fa30b3d748da1b2e84affd
SHA1 hash:
8cfd1de05578d750b296d13f6f8bc1d78d42a891
Link:
https://www.unpac.me/results/ea93b693-1380-4a4b-bc10-d7e765d1fd61/
SH256 hash:
d4f4d50f971d5b6814a3583f939b98c666534ab630dc01d457c055b2454fe94c
MD5 hash:
9bcd53e25e928bf4312b8e99456eb704
SHA1 hash:
1128b53f01281a570878f633679dbfc98251d40a
Link:
https://www.unpac.me/results/ea93b693-1380-4a4b-bc10-d7e765d1fd61/
Malware family:
Stealc
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/d4f4d50f971d/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/d4f4d50f971d5b6814a3583f939b98c666534ab630dc01d457c055b2454fe94c

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:maldoc_find_kernel32_base_method_1
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)

File information

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

Web download

Stealc

Executable exe d4f4d50f971d5b6814a3583f939b98c666534ab630dc01d457c055b2454fe94c

(this sample)

  
Dropped by
Privateloader
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/2813846/

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_NXMissing Non-Executable Memory Protectioncritical
CHECK_PIEMissing Position-Independent Executable (PIE) Protectionhigh
Reviews
IDCapabilitiesEvidence
WIN32_PROCESS_APICan Create Process and ThreadsKERNEL32.dll::CloseHandle
WIN_BASE_APIUses Win Base APIKERNEL32.dll::TerminateProcess
KERNEL32.dll::SetFirmwareEnvironmentVariableA
KERNEL32.dll::LoadLibraryW
KERNEL32.dll::LoadLibraryA
KERNEL32.dll::GetStartupInfoW
KERNEL32.dll::GetStartupInfoA
WIN_BASE_EXEC_APICan Execute other programsKERNEL32.dll::WriteConsoleA
KERNEL32.dll::WriteConsoleW
KERNEL32.dll::SetConsoleDisplayMode
KERNEL32.dll::SetConsoleTitleA
KERNEL32.dll::SetStdHandle
KERNEL32.dll::GetConsoleAliasesLengthW
KERNEL32.dll::GetConsoleCP
KERNEL32.dll::GetConsoleMode
KERNEL32.dll::GetConsoleOutputCP
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CreateFileA
WIN_BASE_USER_APIRetrieves Account InformationKERNEL32.dll::GetComputerNameW

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