MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 627e36dea92cbdd49fcee34c18a29884010a72b5b004c89df90c19a50303a2b3. 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 9 File information Comments 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 627e36dea92cbdd49fcee34c18a29884010a72b5b004c89df90c19a50303a2b3
SHA3-384 hash: 24c521a64d0503ff130ee1e15d295f577c782f2bd4bd53bcbc05bc3d43f117dd3d16f8f537f45b5e1965de11765cb713
SHA1 hash: 884a1fa1ae3d53bc435d34f912c0068e789a8b25
MD5 hash: 8803d74d52bcda67e9b889bd6cc5823e
humanhash: blue-hamper-crazy-hamper
File name:8803d74d52bcda67e9b889bd6cc5823e
Download: download sample
Signature Stealc
Create hunting rule
File size:4'251'872 bytes
First seen:2024-03-27 06:48:02 UTC
Last seen:2024-03-27 08:25:28 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 221e6d7f6f93c5f33059caa08186354c (1 x Stealc)
ssdeep 49152:EIWoXiQpx+/9NQXrglcx9LUSf5AKbq7uFIT8AZPvKcNhNpHrlyI:Qo3gMmWoWRbWBvjNhbByI
Threatray 73 similar samples on MalwareBazaar
TLSH T116169C05B7D405E4E46BCA74C62A9732E6B1FC5A1B75838F0D14F39A1E33E918F6B221
TrID 72.7% (.CPL) Windows Control Panel Item (generic) (57583/11/19)
13.2% (.EXE) Win64 Executable (generic) (10523/12/4)
6.3% (.EXE) Win16 NE executable (generic) (5038/12/1)
2.5% (.EXE) OS/2 Executable (generic) (2029/13)
2.5% (.EXE) Generic Win/DOS Executable (2002/3)
Reporter zbetcheckin
Tags:64 exe signed Stealc

Code Signing Certificate

Organisation:Microsoft Code Signing PCA 2011
Issuer:Microsoft Code Signing PCA 2011
Algorithm:sha256WithRSAEncryption
Valid from:2024-03-26T00:03:29Z
Valid to:2025-03-26T00:03:29Z
Serial number: 044fe6e5bdb0c9da5cd7c7d141e4861e
Thumbprint Algorithm:SHA256
Thumbprint: 88dd50c6d61b9e1d2b2412732390938ae7373deb0cb155fb44c50d85336caa78
Source:This information was brought to you by ReversingLabs A1000 Malware Analysis Platform

Intelligence

File Origin
# of uploads :
2
# of downloads :
307
Origin country :
FR FR
Vendor Threat Intelligence
Malware family:
glupteba
Create hunting rule
ID:
1
File name:
627e36dea92cbdd49fcee34c18a29884010a72b5b004c89df90c19a50303a2b3.exe
Verdict:
Malicious activity
Analysis date:
2024-03-27 06:53:16 UTC
Tags:
loader stealer stealc evasion privateloader opendir trojan glupteba
Link:
https://app.any.run/tasks/a2e87b17-d7cf-4652-bd5d-b3453faf1ae3

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

Behaviour
Launching a process
Сreating synchronization primitives
DNS request
Connection attempt
Sending a custom TCP request
Sending an HTTP GET request to an infection source
Creating a file
Sending an HTTP GET request
Creating a process from a recently created file
Creating a process with a hidden window
Searching for synchronization primitives
Creating a file in the %temp% directory
Creating a window
Launching the default Windows debugger (dwwin.exe)
Creating a file in the %AppData% subdirectories
Running batch commands
Connection attempt to an infection source
Unauthorized injection to a system process
Enabling autorun by creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-debug fingerprint hacktool overlay packed
Link:
https://www.filescan.io/uploads/6603c126c114c71235710845/reports/d9b375ae-22e6-4fa5-bd84-bf81dde78e3b/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/627e36dea92cbdd49fcee34c18a29884010a72b5b004c89df90c19a50303a2b3
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:
Glupteba
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/a8d23fce-f350-4c6d-aa6b-aa0b6b9df709
Result
Threat name:
Glupteba, Mars Stealer, Stealc, Vidar
Create hunting rule
Detection:
malicious
Classification:
rans.troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1416224
Signature
Allocates memory in foreign processes
Antivirus detection for dropped file
C2 URLs / IPs found in malware configuration
Creates HTML files with .exe extension (expired dropper behavior)
Detected unpacking (changes PE section rights)
Detected unpacking (overwrites its own PE header)
Drops script or batch files to the startup folder
Found direct / indirect Syscall (likely to bypass EDR)
Found evasive API chain (may stop execution after checking locale)
Found malware configuration
Found many strings related to Crypto-Wallets (likely being stolen)
Found Tor onion address
Hides threads from debuggers
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
PE file contains section with special chars
Query firmware table information (likely to detect VMs)
Sample uses process hollowing technique
Sample uses string decryption to hide its real strings
Searches for specific processes (likely to inject)
Sigma detected: Drops script at startup location
Tries to detect process monitoring tools (Task Manager, Process Explorer etc.)
Tries to detect sandboxes / dynamic malware analysis system (registry check)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect sandboxes and other dynamic analysis tools (window names)
Tries to evade debugger and weak emulator (self modifying code)
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 schtasks.exe or at.exe to add and modify task schedules
Writes many files with high entropy
Writes to foreign memory regions
Yara detected Generic Downloader
Yara detected Glupteba
Yara detected Mars stealer
Yara detected Stealc
Yara detected Vidar stealer
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1416224 Sample: g2nXBEjfVF.exe Startdate: 27/03/2024 Architecture: WINDOWS Score: 100 139 Found malware configuration 2->139 141 Malicious sample detected (through community Yara rule) 2->141 143 Antivirus detection for dropped file 2->143 145 12 other signatures 2->145 10 g2nXBEjfVF.exe 2->10         started        13 cmd.exe 2->13         started        process3 signatures4 157 Writes to foreign memory regions 10->157 159 Allocates memory in foreign processes 10->159 161 Sample uses process hollowing technique 10->161 163 Injects a PE file into a foreign processes 10->163 15 MSBuild.exe 15 438 10->15         started        20 AddInProcess32.exe 10->20         started        22 conhost.exe 13->22         started        process5 dnsIp6 127 107.167.110.211 OPERASOFTWAREUS United States 15->127 129 107.167.110.216 OPERASOFTWAREUS United States 15->129 131 16 other IPs or domains 15->131 71 C:\Users\...\zttoZjLdg5zjyVmtVraI84No.exe, PE32 15->71 dropped 73 C:\Users\...\ycXvVb3dY4FtHYGfoYGLMj3Q.exe, PE32 15->73 dropped 75 C:\Users\...\xlMv0bJvDCi706LavYHHdW63.exe, PE32 15->75 dropped 77 256 other malicious files 15->77 dropped 133 Drops script or batch files to the startup folder 15->133 135 Creates HTML files with .exe extension (expired dropper behavior) 15->135 137 Writes many files with high entropy 15->137 24 E40LdlfRCzScXD9e5Sizfdh6.exe 1 3 15->24         started        29 xlMv0bJvDCi706LavYHHdW63.exe 15->29         started        31 p5sDKPIwBwxglgKEG3fdd1Tq.exe 15->31         started        33 22 other processes 15->33 file7 signatures8 process9 dnsIp10 113 185.172.128.65 NADYMSS-ASRU Russian Federation 24->113 115 185.172.128.90 NADYMSS-ASRU Russian Federation 24->115 93 C:\Users\user\AppData\Local\Temp\u594.1.exe, PE32 24->93 dropped 95 C:\Users\user\AppData\Local\Temp\u594.0.exe, PE32 24->95 dropped 165 Detected unpacking (changes PE section rights) 24->165 167 Detected unpacking (overwrites its own PE header) 24->167 35 u594.0.exe 24->35         started        40 u594.1.exe 24->40         started        117 107.167.110.218 OPERASOFTWAREUS United States 29->117 119 107.167.125.189 OPERASOFTWAREUS United States 29->119 125 5 other IPs or domains 29->125 97 Opera_installer_2403270349019308012.dll, PE32 29->97 dropped 99 C:\Users\...\xlMv0bJvDCi706LavYHHdW63.exe, PE32 29->99 dropped 107 7 other malicious files 29->107 dropped 169 Writes many files with high entropy 29->169 42 xlMv0bJvDCi706LavYHHdW63.exe 29->42         started        44 xlMv0bJvDCi706LavYHHdW63.exe 29->44         started        171 Query firmware table information (likely to detect VMs) 31->171 173 Tries to detect sandboxes and other dynamic analysis tools (window names) 31->173 175 Tries to evade debugger and weak emulator (self modifying code) 31->175 183 3 other signatures 31->183 121 107.167.110.217 OPERASOFTWAREUS United States 33->121 123 104.112.235.81 AKAMAI-ASN1EU United States 33->123 101 C:\Users\user\AppData\Local\Temp\u65w.1.exe, PE32 33->101 dropped 103 C:\Users\user\AppData\Local\Temp\u65w.0.exe, PE32 33->103 dropped 105 C:\Users\user\AppData\Local\Temp\u5so.1.exe, PE32 33->105 dropped 109 21 other malicious files 33->109 dropped 177 Found Tor onion address 33->177 179 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 33->179 181 Hides threads from debuggers 33->181 46 u5n4.0.exe 33->46         started        48 u5ow.0.exe 33->48         started        50 rUw1DZJSMukUBd7qm6PfIpSO.exe 33->50         started        52 2 other processes 33->52 file11 signatures12 process13 dnsIp14 111 185.172.128.209 NADYMSS-ASRU Russian Federation 35->111 79 C:\Users\user\AppData\...\JDBFIIEBGC.exe, PE32 35->79 dropped 81 C:\Users\user\AppData\...\softokn3[1].dll, PE32 35->81 dropped 83 C:\Users\user\AppData\Local\...\nss3[1].dll, PE32 35->83 dropped 91 11 other files (7 malicious) 35->91 dropped 147 Detected unpacking (changes PE section rights) 35->147 149 Detected unpacking (overwrites its own PE header) 35->149 151 Tries to steal Mail credentials (via file / registry access) 35->151 153 7 other signatures 35->153 54 cmd.exe 40->54         started        85 Opera_installer_2403270349023938100.dll, PE32 42->85 dropped 87 Opera_installer_2403270349038413196.dll, PE32 44->87 dropped 89 Opera_installer_2403270349227047768.dll, PE32 50->89 dropped 57 cmd.exe 52->57         started        59 cmd.exe 52->59         started        file15 signatures16 process17 signatures18 155 Uses schtasks.exe or at.exe to add and modify task schedules 54->155 61 conhost.exe 54->61         started        63 chcp.com 54->63         started        65 schtasks.exe 54->65         started        67 conhost.exe 57->67         started        69 conhost.exe 59->69         started        process19
Score:
99%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/627e36dea92cbdd49fcee34c18a29884010a72b5b004c89df90c19a50303a2b3
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/627e36dea92cbdd49fcee34c18a29884010a72b5b004c89df90c19a50303a2b3/
Threat name:
Win64.Trojan.Casdet
Create hunting rule
Status:
Malicious
First seen:
2024-03-26 01:18:37 UTC
File Type:
PE+ (Exe)
AV detection:
19 of 24 (79.17%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=mj7dnxvjfs65jh6o4ngbriuyqqaqu4vvwacmrhpzbqm2kaydukzq._file
Verdict:
malicious
Similar samples:
5de000c94215943f6ddbb15376ca07f67f9965ab58cbd3335279ae66baf56bb6
Stealc
bbfd32be787e01f9b2514e32edfae246cf019ca6fb95c85d53a7776174f3becf
Stealc
c54dec8c6c088c7b13267214dbc9ecb2f1e7aa3883e5bc4abe80accc83d32131
Stealc
cac7fc4ae9c97eba7455992b2d41449ee257ec485c562bfc7245a90033b1d774
Stealc
da08f38fa649643f410f14811c7e3cec28c7aaf5b98ab06bae942695e15a30c6
Stealc
+ 63 additional samples on MalwareBazaar
Result
Malware family:
stealc
Create hunting rule
Score:
  10/10
Tags:
family:glupteba family:stealc discovery dropper evasion loader persistence spyware stealer themida trojan upx
Link:
https://tria.ge/reports/240327-hkr7vahg5z/
Behaviour
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Checks processor information in registry
Creates scheduled task(s)
Enumerates system info in registry
Modifies data under HKEY_USERS
Modifies system certificate store
Runs ping.exe
Suspicious behavior: EnumeratesProcesses
Enumerates physical storage devices
Program crash
Checks for VirtualBox DLLs, possible anti-VM trick
Drops file in Windows directory
Launches sc.exe
Drops file in System32 directory
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Accesses cryptocurrency files/wallets, possible credential harvesting
Adds Run key to start application
Checks installed software on the system
Checks whether UAC is enabled
Enumerates connected drives
Legitimate hosting services abused for malware hosting/C2
Looks up external IP address via web service
Checks BIOS information in registry
Checks computer location settings
Drops startup file
Executes dropped EXE
Loads dropped DLL
Reads data files stored by FTP clients
Reads user/profile data of web browsers
Themida packer
UPX packed file
Windows security modification
Blocklisted process makes network request
Downloads MZ/PE file
Modifies Windows Firewall
Identifies VirtualBox via ACPI registry values (likely anti-VM)
Glupteba
Glupteba payload
Modifies firewall policy service
Stealc
Windows security bypass
Malware Config
C2 Extraction:
http://185.172.128.209
Unpacked files
SH256 hash:
627e36dea92cbdd49fcee34c18a29884010a72b5b004c89df90c19a50303a2b3
MD5 hash:
8803d74d52bcda67e9b889bd6cc5823e
SHA1 hash:
884a1fa1ae3d53bc435d34f912c0068e789a8b25
Link:
https://www.unpac.me/results/df71508e-cbe3-41be-8ece-5cd2cf68255b/
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/627e36dea92cbdd49fcee34c18a29884010a72b5b004c89df90c19a50303a2b3

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:DebuggerCheck__MemoryWorkingSet
Create hunting rule
Author:Fernando Mercês
Description:Anti-debug process memory working set size check
Reference:http://www.gironsec.com/blog/2015/06/anti-debugger-trick-quicky/
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:PE_Digital_Certificate
Create hunting rule
Author:albertzsigovits
Rule name:PE_Potentially_Signed_Digital_Certificate
Create hunting rule
Author:albertzsigovits
Rule name:RIPEMD160_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SEH__vectored
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:SHA1_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA1 constants
Rule name:ThreadControl__Context
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara

File information

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

Web download

Stealc

Executable exe 627e36dea92cbdd49fcee34c18a29884010a72b5b004c89df90c19a50303a2b3

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/2793572/

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 (GUARD_CF)high
Reviews
IDCapabilitiesEvidence
AUTH_APIManipulates User AuthorizationADVAPI32.dll::RevertToSelf
SECURITY_BASE_APIUses Security Base APIADVAPI32.dll::AdjustTokenPrivileges
ADVAPI32.dll::CheckTokenMembership
ADVAPI32.dll::DuplicateTokenEx
ADVAPI32.dll::GetTokenInformation
ADVAPI32.dll::ImpersonateLoggedOnUser
WIN32_PROCESS_APICan Create Process and ThreadsKERNEL32.dll::CreateProcessW
ADVAPI32.dll::OpenProcessToken
KERNEL32.dll::OpenProcess
ADVAPI32.dll::OpenThreadToken
KERNEL32.dll::VirtualAllocEx
KERNEL32.dll::VirtualAllocExNuma
WIN_BASE_APIUses Win Base APIKERNEL32.dll::TerminateProcess
KERNEL32.dll::LoadLibraryExW
KERNEL32.dll::GetSystemInfo
WIN_BASE_EXEC_APICan Execute other programsKERNEL32.dll::GetConsoleCP
KERNEL32.dll::GetConsoleOutputCP
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CreateDirectoryW
KERNEL32.dll::CreateFileW
KERNEL32.dll::DeleteFileW
KERNEL32.dll::GetSystemDirectoryW
WIN_BASE_USER_APIRetrieves Account InformationADVAPI32.dll::LookupPrivilegeValueW
WIN_BCRYPT_APICan Encrypt Filesbcrypt.dll::BCryptDecrypt
bcrypt.dll::BCryptDestroyKey
bcrypt.dll::BCryptEncrypt
bcrypt.dll::BCryptGenRandom
bcrypt.dll::BCryptImportKey
bcrypt.dll::BCryptOpenAlgorithmProvider
WIN_REG_APICan Manipulate Windows RegistryADVAPI32.dll::RegCreateKeyExW
ADVAPI32.dll::RegOpenKeyExW
ADVAPI32.dll::RegQueryValueExW
ADVAPI32.dll::RegSetValueExW

Comments


Avatar
zbet commented on 2024-03-27 06:48:03 UTC

url : hxxp://193.233.132.167/lend/un300un.exe