MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 6b4495f15ce047b58045623e0ed91513c72a3066625149921a7cef03b10c8736. 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: 14


Intelligence 14 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 6b4495f15ce047b58045623e0ed91513c72a3066625149921a7cef03b10c8736
SHA3-384 hash: 1f8efe04340d9d9ab8063b9de01da049feb304b6eb49232fece46adcbe764f9ef0743bc9e9a7be4049de46357445ba02
SHA1 hash: b37fc82aae68c1d23de6de5b8390a39bfaa3b17b
MD5 hash: c4b2d725a2ac33b9d715ca854c1a0d2a
humanhash: angel-fix-georgia-massachusetts
File name:SecuriteInfo.com.Win32.CrypterX-gen.2489.7124
Download: download sample
Signature Stealc
Create hunting rule
File size:367'617 bytes
First seen:2024-04-04 15:46:34 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash ec3abec3d94db3f742ac97930ba3d6d5 (4 x Stealc, 1 x TeamBot)
ssdeep 6144:7YPRY/89UABc83/upnouy8rqyob1oVxWTSinu9sEKSQx0gcEQpCgPV6n1s:CYEUA2g/uxRy8rqyo1o7Wznu9RKS20gi
TLSH T18574E05032A1F832E1E319705DB8D2A6383FB9625A7941CB63543EAF6EB13D14F34726
TrID 67.1% (.CPL) Windows Control Panel Item (generic) (57583/11/19)
12.2% (.EXE) Win64 Executable (generic) (10523/12/4)
5.8% (.EXE) Win16 NE executable (generic) (5038/12/1)
5.2% (.EXE) Win32 Executable (generic) (4504/4/1)
2.4% (.ICL) Windows Icons Library (generic) (2059/9)
File icon (PE):PE icon
dhash icon 5bb27e626ab25308 (2 x Stealc)
Reporter SecuriteInfoCom
Tags:exe Stealc

Intelligence

File Origin
# of uploads :
1
# of downloads :
281
Origin country :
FR FR
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
6b4495f15ce047b58045623e0ed91513c72a3066625149921a7cef03b10c8736.exe
Verdict:
Malicious activity
Analysis date:
2024-04-04 15:53:35 UTC
Tags:
loader gcleaner stealer stealc
Link:
https://app.any.run/tasks/02847518-867f-4fc3-9c82-b3fa63068dc8

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

Behaviour
Sending an HTTP GET request to an infection source
Creating a file in the %temp% directory
Сreating synchronization primitives
Creating a process from a recently created file
Launching the default Windows debugger (dwwin.exe)
Searching for synchronization primitives
Searching for the window
Creating a window
Creating a file
DNS request
Connecting to a non-recommended domain
Connection attempt
Sending an HTTP POST request
Transferring files using the Background Intelligent Transfer Service (BITS)
Sending a custom TCP request
Connection attempt to an infection source
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
fingerprint masquerade overlay packed
Link:
https://www.filescan.io/uploads/660ecb81eda31927461c9916/reports/0effe680-8b52-4111-9668-452005784d29/overview
Verdict:
Malicious
Labled as:
Malware
Link:
https://www.hybrid-analysis.com/sample/6b4495f15ce047b58045623e0ed91513c72a3066625149921a7cef03b10c8736
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/9cc13929-3807-4914-a376-4d90d09918ad
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/1420303
Signature
.NET source code contains potential unpacker
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Checks if the current machine is a virtual machine (disk enumeration)
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)
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
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)
Uses ping.exe to check the status of other devices and networks
Uses ping.exe to sleep
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: 1420303 Sample: SecuriteInfo.com.Win32.Cryp... Startdate: 04/04/2024 Architecture: WINDOWS Score: 100 59 westus2-2.in.applicationinsights.azure.com 2->59 61 westus2-2.in.ai.privatelink.monitor.azure.com 2->61 63 2 other IPs or domains 2->63 83 Snort IDS alert for network traffic 2->83 85 Found malware configuration 2->85 87 Malicious sample detected (through community Yara rule) 2->87 89 15 other signatures 2->89 11 SecuriteInfo.com.Win32.CrypterX-gen.2489.7124.exe 1 3 2->11         started        signatures3 process4 dnsIp5 67 185.172.128.90, 49724, 80 NADYMSS-ASRU Russian Federation 11->67 69 185.172.128.144, 49728, 80 NADYMSS-ASRU Russian Federation 11->69 71 185.172.128.65, 49726, 49727, 49747 NADYMSS-ASRU Russian Federation 11->71 51 C:\Users\user\AppData\Local\Temp\u25k.1.exe, PE32 11->51 dropped 53 C:\Users\user\AppData\Local\Temp\u25k.0.exe, PE32 11->53 dropped 103 Detected unpacking (changes PE section rights) 11->103 105 Detected unpacking (overwrites its own PE header) 11->105 16 u25k.0.exe 79 11->16         started        21 u25k.1.exe 6 8 11->21         started        file6 signatures7 process8 dnsIp9 55 185.172.128.209, 49730, 80 NADYMSS-ASRU Russian Federation 16->55 43 C:\Users\user\AppData\...\KFIDBAFHCA.exe, PE32 16->43 dropped 45 C:\Users\user\AppData\...\softokn3[1].dll, PE32 16->45 dropped 47 C:\Users\user\AppData\Local\...\nss3[1].dll, PE32 16->47 dropped 49 11 other files (7 malicious) 16->49 dropped 73 Detected unpacking (changes PE section rights) 16->73 75 Detected unpacking (overwrites its own PE header) 16->75 77 Tries to steal Mail credentials (via file / registry access) 16->77 81 7 other signatures 16->81 23 cmd.exe 16->23         started        26 WerFault.exe 16->26         started        57 svc.iolo.com 20.157.87.45, 49731, 49741, 80 MICROSOFT-CORP-MSN-AS-BLOCKUS United States 21->57 79 Checks if the current machine is a virtual machine (disk enumeration) 21->79 28 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 14 14 21->28         started        file10 signatures11 process12 signatures13 93 Uses ping.exe to sleep 23->93 95 Uses ping.exe to check the status of other devices and networks 23->95 30 KFIDBAFHCA.exe 23->30         started        33 conhost.exe 23->33         started        97 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 28->97 99 Queries sensitive disk information (via WMI, Win32_DiskDrive, often done to detect virtual machines) 28->99 101 Queries sensitive service information (via WMI, Win32_LogicalDisk, often done to detect sandboxes) 28->101 process14 signatures15 107 Multi AV Scanner detection for dropped file 30->107 35 cmd.exe 30->35         started        process16 signatures17 91 Uses ping.exe to sleep 35->91 38 PING.EXE 35->38         started        41 conhost.exe 35->41         started        process18 dnsIp19 65 2.2.2.2 FranceTelecom-OrangeFR France 38->65
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/6b4495f15ce047b58045623e0ed91513c72a3066625149921a7cef03b10c8736
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/6b4495f15ce047b58045623e0ed91513c72a3066625149921a7cef03b10c8736/
Threat name:
Win32.Trojan.Smokeloader
Create hunting rule
Status:
Malicious
First seen:
2024-04-04 15:47:14 UTC
File Type:
PE (Exe)
Extracted files:
21
AV detection:
18 of 24 (75.00%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=nncjl4k44bd3lacfmi7a5wivcpdsumdgmjiuteq2ptxqhmimq43a._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/240404-s8amtabf8z/
Behaviour
Checks SCSI registry key(s)
Checks processor information in registry
Runs ping.exe
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
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:
929c311d58965ae456d96ca118fb7fcabf98699e02d30e0913ddf08a06e8d0c4
MD5 hash:
08aaaa25ef78eff19a96c02905e84004
SHA1 hash:
6940d4f0b6426d28d6f6821c2d531343eedb121d
Link:
https://www.unpac.me/results/53a81129-b90f-4161-bb76-58b7be0d8385/
SH256 hash:
6b4495f15ce047b58045623e0ed91513c72a3066625149921a7cef03b10c8736
MD5 hash:
c4b2d725a2ac33b9d715ca854c1a0d2a
SHA1 hash:
b37fc82aae68c1d23de6de5b8390a39bfaa3b17b
Link:
https://www.unpac.me/results/53a81129-b90f-4161-bb76-58b7be0d8385/
Malware family:
Stealc
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/6b4495f15ce0/report/overview.html
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
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)
Rule name:Windows_Trojan_Generic_2993e5a5
Create hunting rule
Author:Elastic Security

File information

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

Web download

Stealc

Executable exe 6b4495f15ce047b58045623e0ed91513c72a3066625149921a7cef03b10c8736

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/2801033/
  
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_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::FindFirstVolumeMountPointW
KERNEL32.dll::LoadLibraryW
KERNEL32.dll::LoadLibraryA
KERNEL32.dll::GetStartupInfoW
KERNEL32.dll::GetCommandLineW
WIN_BASE_EXEC_APICan Execute other programsKERNEL32.dll::WriteConsoleOutputA
KERNEL32.dll::WriteConsoleW
KERNEL32.dll::SetConsoleOutputCP
KERNEL32.dll::SetConsoleTitleW
KERNEL32.dll::SetStdHandle
KERNEL32.dll::GetConsoleAliasesLengthW
KERNEL32.dll::GetConsoleAliasExesLengthW
KERNEL32.dll::GetConsoleCP
KERNEL32.dll::GetConsoleMode
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CreateHardLinkW
KERNEL32.dll::CreateFileW

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