MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 44076f98f8eb94de54ede47ed6d40d685eeab38606232b022f29996a2ab33cef. 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 2 File information Comments

SHA256 hash: 44076f98f8eb94de54ede47ed6d40d685eeab38606232b022f29996a2ab33cef
SHA3-384 hash: 0d519fdccc88ddc21a1073140fa944185195519f3f2e07f717eb40e74529eddac205b6b012082da73ad2ba2ba45f5594
SHA1 hash: 3de884af9f3e790d1a4e175c79fcbc890fcd048a
MD5 hash: 50494a724f762ff229c95ce4ef985f2e
humanhash: victor-fillet-mississippi-salami
File name:50494a724f762ff229c95ce4ef985f2e.exe
Download: download sample
Signature Stealc
File size:355'841 bytes
First seen:2024-04-27 17:20:16 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 2f726f40370b375fa05d60fc38904442 (12 x Stealc, 1 x Arechclient2)
ssdeep 6144:8o+4WgjZb/JFOtrrcQfDowFsTPgZvaRGbmDgAsWrJhUN5m8BOP:5ZjZb/JfQboRTAvaYykBAfFP
TLSH T1647402307BA0C47AD1A798345931CA94967F79222BB1C7873A441FFD3EB13C14A363A6
TrID 46.6% (.CPL) Windows Control Panel Item (generic) (57583/11/19)
25.2% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
8.5% (.EXE) Win64 Executable (generic) (10523/12/4)
5.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.0% (.EXE) Win16 NE executable (generic) (5038/12/1)
File icon (PE):PE icon
dhash icon 64d29a98c9a98981 (5 x Stealc)
Reporter abuse_ch
Tags:exe Stealc


Avatar
abuse_ch
Stealc C2:
http://185.172.128.62/902e53a07830e030.php

Intelligence


File Origin
# of uploads :
1
# of downloads :
346
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
44076f98f8eb94de54ede47ed6d40d685eeab38606232b022f29996a2ab33cef.exe
Verdict:
Malicious activity
Analysis date:
2024-04-27 17:22:47 UTC
Tags:
gcleaner loader stealer stealc hijackloader arechclient2 backdoor

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
DNS request
Connection attempt
Sending an HTTP GET request
Connecting to a non-recommended domain
Creating a window
Searching for synchronization primitives
Creating a file
Launching the default Windows debugger (dwwin.exe)
Sending an HTTP POST request
Running batch commands
Creating a process with a hidden window
Launching a process
Searching for the window
Transferring files using the Background Intelligent Transfer Service (BITS)
Sending a custom TCP request
Enabling the 'hidden' option for files in the %temp% directory
Moving a recently created file
Connection attempt to an infection source
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
fingerprint overlay packed
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.
Result
Threat name:
Mars Stealer, PureLog Stealer, RedLine,
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Signature
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)
Connects to many ports of the same IP (likely port scanning)
Detected unpacking (changes PE section rights)
Detected unpacking (overwrites its own PE header)
Found direct / indirect Syscall (likely to bypass EDR)
Found evasive API chain (may stop execution after checking locale)
Found hidden mapped module (file has been removed from disk)
Found malware configuration
Found many strings related to Crypto-Wallets (likely being stolen)
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Multi AV Scanner detection for domain / URL
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)
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)
Writes to foreign memory regions
Yara detected Generic Downloader
Yara detected Mars stealer
Yara detected PureLog Stealer
Yara detected RedLine Stealer
Yara detected Stealc
Yara detected UAC Bypass using CMSTP
Yara detected Vidar stealer
Yara detected zgRAT
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1432640 Sample: pQdH2s9sV2.exe Startdate: 27/04/2024 Architecture: WINDOWS Score: 100 77 download.iolo.net 2->77 79 westus2-2.in.applicationinsights.azure.com 2->79 81 8 other IPs or domains 2->81 109 Multi AV Scanner detection for domain / URL 2->109 111 Found malware configuration 2->111 113 Malicious sample detected (through community Yara rule) 2->113 115 17 other signatures 2->115 9 pQdH2s9sV2.exe 3 11 2->9         started        14 run.exe 2->14         started        16 chrome.exe 1 2->16         started        signatures3 process4 dnsIp5 91 185.172.128.228, 49738, 80 NADYMSS-ASRU Russian Federation 9->91 93 185.172.128.59, 49739, 80 NADYMSS-ASRU Russian Federation 9->93 99 2 other IPs or domains 9->99 69 C:\Users\user\AppData\Local\Temp\u56w.3.exe, PE32 9->69 dropped 71 C:\Users\user\AppData\Local\Temp\...\run.exe, PE32 9->71 dropped 73 C:\Users\user\AppData\Local\...\relay.dll, PE32 9->73 dropped 75 2 other malicious files 9->75 dropped 145 Detected unpacking (changes PE section rights) 9->145 147 Detected unpacking (overwrites its own PE header) 9->147 18 u56w.0.exe 75 76 9->18         started        23 run.exe 6 9->23         started        25 u56w.3.exe 6 8 9->25         started        27 WerFault.exe 16 9->27         started        149 Maps a DLL or memory area into another process 14->149 151 Found direct / indirect Syscall (likely to bypass EDR) 14->151 29 cmd.exe 14->29         started        95 192.168.2.4, 443, 49730, 49731 unknown unknown 16->95 97 239.255.255.250 unknown Reserved 16->97 31 chrome.exe 16->31         started        33 chrome.exe 16->33         started        file6 signatures7 process8 dnsIp9 83 185.172.128.62, 49747, 80 NADYMSS-ASRU Russian Federation 18->83 53 C:\Users\user\AppData\...\softokn3[1].dll, PE32 18->53 dropped 55 C:\Users\user\AppData\Local\...\nss3[1].dll, PE32 18->55 dropped 57 C:\Users\user\AppData\...\mozglue[1].dll, PE32 18->57 dropped 65 9 other files (5 malicious) 18->65 dropped 117 Multi AV Scanner detection for dropped file 18->117 119 Detected unpacking (changes PE section rights) 18->119 121 Detected unpacking (overwrites its own PE header) 18->121 131 8 other signatures 18->131 35 WerFault.exe 18->35         started        59 C:\Users\user\AppData\Roaming\...\relay.dll, PE32 23->59 dropped 61 C:\Users\user\AppData\...\UIxMarketPlugin.dll, PE32 23->61 dropped 123 Maps a DLL or memory area into another process 23->123 125 Found direct / indirect Syscall (likely to bypass EDR) 23->125 37 cmd.exe 4 23->37         started        85 svc.iolo.com 20.157.87.45 MICROSOFT-CORP-MSN-AS-BLOCKUS United States 25->85 127 Checks if the current machine is a virtual machine (disk enumeration) 25->127 41 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 25->41         started        63 C:\Users\user\AppData\Local\Temp\okfif, PE32 29->63 dropped 129 Writes to foreign memory regions 29->129 43 conhost.exe 29->43         started        45 MSBuild.exe 29->45         started        87 www.google.com 142.251.40.228, 443, 49731, 49735 GOOGLEUS United States 31->87 89 142.251.41.4 GOOGLEUS United States 33->89 file10 signatures11 process12 file13 67 C:\Users\user\AppData\Local\...\biaogxxnyso, PE32 37->67 dropped 133 Writes to foreign memory regions 37->133 135 Found hidden mapped module (file has been removed from disk) 37->135 137 Maps a DLL or memory area into another process 37->137 47 MSBuild.exe 37->47         started        51 conhost.exe 37->51         started        139 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 41->139 141 Queries sensitive disk information (via WMI, Win32_DiskDrive, often done to detect virtual machines) 41->141 143 Queries sensitive service information (via WMI, Win32_LogicalDisk, often done to detect sandboxes) 41->143 signatures14 process15 dnsIp16 101 91.215.85.66 PINDC-ASRU Russian Federation 47->101 103 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 47->103 105 Queries sensitive disk information (via WMI, Win32_DiskDrive, often done to detect virtual machines) 47->105 107 Tries to harvest and steal browser information (history, passwords, etc) 47->107 signatures17
Threat name:
Win32.Spyware.Stealc
Status:
Malicious
First seen:
2024-04-27 17:21:05 UTC
File Type:
PE (Exe)
Extracted files:
16
AV detection:
18 of 23 (78.26%)
Threat level:
  2/5
Verdict:
malicious
Result
Malware family:
Score:
  10/10
Tags:
family:sectoprat family:stealc family:zgrat discovery rat spyware stealer trojan
Behaviour
Checks SCSI registry key(s)
Checks processor information in registry
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of SetWindowsHookEx
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
SectopRAT
SectopRAT payload
Stealc
ZGRat
Malware Config
C2 Extraction:
http://185.172.128.62
Unpacked files
SH256 hash:
cfc2458a54578854cae748277b7527e4a2ff4a49aa4a55b885109fc334f73865
MD5 hash:
f24e8a42d193b41ec73c76a36c30ee0d
SHA1 hash:
4ceab3b79d49350c6d9575470cd273ec1d8b26cd
SH256 hash:
44076f98f8eb94de54ede47ed6d40d685eeab38606232b022f29996a2ab33cef
MD5 hash:
50494a724f762ff229c95ce4ef985f2e
SHA1 hash:
3de884af9f3e790d1a4e175c79fcbc890fcd048a
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
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerException__SetConsoleCtrl
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 44076f98f8eb94de54ede47ed6d40d685eeab38606232b022f29996a2ab33cef

(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_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (HIGH_ENTROPY_VA)high
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::LoadLibraryA
KERNEL32.dll::GetVolumeInformationA
KERNEL32.dll::GetStartupInfoA
KERNEL32.dll::GetCommandLineA
WIN_BASE_EXEC_APICan Execute other programsKERNEL32.dll::WriteConsoleA
KERNEL32.dll::WriteConsoleW
KERNEL32.dll::ReadConsoleW
KERNEL32.dll::ScrollConsoleScreenBufferA
KERNEL32.dll::SetConsoleCtrlHandler
KERNEL32.dll::SetConsoleDisplayMode
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CreateFileA

Comments