MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 bcff7c4c011b77166deccd8682035bfeef00e432eafb704b4044b74e2202a023. 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: 13


Intelligence 13 IOCs YARA 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: bcff7c4c011b77166deccd8682035bfeef00e432eafb704b4044b74e2202a023
SHA3-384 hash: cbeb0cb033b5efc935ba532dad0db704b5e7e4ccf4886c0a738fef7e4ecdaf49de76b81476b12e95c97d60f6f0b19564
SHA1 hash: c63d6490895ec91b0a7878829c542325c2d64a49
MD5 hash: 4d03b24fd821d8ff1bd65b2d2a91e783
humanhash: arizona-video-beer-hot
File name:4d03b24fd821d8ff1bd65b2d2a91e783.exe
Download: download sample
Signature Stealc
Create hunting rule
File size:424'449 bytes
First seen:2024-04-22 13:25:33 UTC
Last seen:2024-04-22 14:31:04 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 12f7de8a3c68b276aca25710ff68730e (11 x Stealc)
ssdeep 6144:KaNQSzDOdLCY3IIYNmFemr3SVmId141qQ6Kn5AAESl+YYbrnThEI9CHqADl4dqD7:KaNQFzxAPIY0qQ3OAESl+Vbr1kYq1F
TLSH T1D794F111B2F0DC7ED9664A70CC2BFAE41A2EBD314E71859B379C266F1D31290D62B316
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 64f29a9889898991 (4 x Stealc)
Reporter abuse_ch
Tags:exe Stealc


Avatar
abuse_ch
Stealc C2:
http://185.172.128.76/3cd2b41cbde8fc9c.php

Intelligence

File Origin
# of uploads :
2
# of downloads :
309
Origin country :
NL NL
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
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
Sending an HTTP GET request to an infection source
Connection attempt to an infection source
Verdict:
No Threat
Threat level:
  10/10
Confidence:
100%
Tags:
fingerprint overlay
Link:
https://www.filescan.io/uploads/6626657275339da04f9bb60a/reports/c9647732-7436-452f-8956-f1d5498b2ee8/overview
Verdict:
Malicious
Labled as:
Malware
Link:
https://www.hybrid-analysis.com/sample/bcff7c4c011b77166deccd8682035bfeef00e432eafb704b4044b74e2202a023
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/e7fef5fe-6f15-44c7-bdba-e1a941c6f563
Result
Threat name:
Mars Stealer, PureLog Stealer, RedLine,
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1429675
Signature
.NET source code contains method to dynamically call methods (often used by packers)
Antivirus detection for dropped file
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 dropped file
Overwrites code with unconditional jumps - possibly settings hooks in foreign process
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)
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:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1429675 Sample: pA0RH0NbYx.exe Startdate: 22/04/2024 Architecture: WINDOWS Score: 100 89 download.iolo.net 2->89 91 westus2-2.in.applicationinsights.azure.com 2->91 93 8 other IPs or domains 2->93 115 Snort IDS alert for network traffic 2->115 117 Found malware configuration 2->117 119 Malicious sample detected (through community Yara rule) 2->119 121 16 other signatures 2->121 11 pA0RH0NbYx.exe 1 4 2->11         started        16 ptInst.exe 2->16         started        signatures3 process4 dnsIp5 101 185.172.128.90, 49705, 80 NADYMSS-ASRU Russian Federation 11->101 103 185.172.128.228, 49706, 80 NADYMSS-ASRU Russian Federation 11->103 105 2 other IPs or domains 11->105 81 C:\Users\user\AppData\Local\Temp\u5j0.1.exe, PE32 11->81 dropped 83 C:\Users\user\AppData\Local\Temp\u5j0.0.exe, PE32 11->83 dropped 85 C:\Users\user\AppData\Local\...\Qg_Appv5.exe, PE32 11->85 dropped 145 Detected unpacking (changes PE section rights) 11->145 147 Detected unpacking (overwrites its own PE header) 11->147 18 u5j0.0.exe 69 11->18         started        23 Qg_Appv5.exe 10 11->23         started        25 u5j0.1.exe 22 8 11->25         started        27 WerFault.exe 16 11->27         started        149 Maps a DLL or memory area into another process 16->149 151 Found direct / indirect Syscall (likely to bypass EDR) 16->151 29 cmd.exe 16->29         started        file6 signatures7 process8 dnsIp9 95 185.172.128.76, 49709, 80 NADYMSS-ASRU Russian Federation 18->95 63 C:\Users\user\AppData\...\softokn3[1].dll, PE32 18->63 dropped 65 C:\Users\user\AppData\Local\...\nss3[1].dll, PE32 18->65 dropped 67 C:\Users\user\AppData\...\mozglue[1].dll, PE32 18->67 dropped 79 9 other files (5 malicious) 18->79 dropped 123 Multi AV Scanner detection for dropped file 18->123 125 Detected unpacking (changes PE section rights) 18->125 127 Detected unpacking (overwrites its own PE header) 18->127 139 9 other signatures 18->139 31 WerFault.exe 18->31         started        69 C:\Users\user\AppData\...\vcruntime140.dll, PE32 23->69 dropped 71 C:\Users\user\AppData\Local\...\ptInst.exe, PE32 23->71 dropped 73 C:\Users\user\AppData\Local\...\msvcp140.dll, PE32 23->73 dropped 75 C:\Users\user\AppData\Local\...\WCLDll.dll, PE32 23->75 dropped 129 Overwrites code with unconditional jumps - possibly settings hooks in foreign process 23->129 131 Found direct / indirect Syscall (likely to bypass EDR) 23->131 33 ptInst.exe 7 23->33         started        97 svc.iolo.com 20.157.87.45 MICROSOFT-CORP-MSN-AS-BLOCKUS United States 25->97 133 Checks if the current machine is a virtual machine (disk enumeration) 25->133 37 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 25->37         started        77 C:\Users\user\AppData\Local\Temp\eso, PE32 29->77 dropped 135 Writes to foreign memory regions 29->135 137 Maps a DLL or memory area into another process 29->137 39 conhost.exe 29->39         started        41 MSBuild.exe 29->41         started        file10 signatures11 process12 file13 55 C:\Users\user\AppData\...\vcruntime140.dll, PE32 33->55 dropped 57 C:\Users\user\AppData\Roaming\...\ptInst.exe, PE32 33->57 dropped 59 C:\Users\user\AppData\...\msvcp140.dll, PE32 33->59 dropped 61 C:\Users\user\AppData\Roaming\...\WCLDll.dll, PE32 33->61 dropped 107 Found direct / indirect Syscall (likely to bypass EDR) 33->107 43 ptInst.exe 1 33->43         started        109 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 37->109 111 Queries sensitive disk information (via WMI, Win32_DiskDrive, often done to detect virtual machines) 37->111 113 Queries sensitive service information (via WMI, Win32_LogicalDisk, often done to detect sandboxes) 37->113 signatures14 process15 signatures16 141 Maps a DLL or memory area into another process 43->141 143 Found direct / indirect Syscall (likely to bypass EDR) 43->143 46 cmd.exe 4 43->46         started        process17 file18 87 C:\Users\user\AppData\Local\Temp\yxdhmem, PE32 46->87 dropped 153 Writes to foreign memory regions 46->153 155 Found hidden mapped module (file has been removed from disk) 46->155 157 Maps a DLL or memory area into another process 46->157 50 MSBuild.exe 46->50         started        53 conhost.exe 46->53         started        signatures19 process20 dnsIp21 99 91.215.85.66 PINDC-ASRU Russian Federation 50->99
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/bcff7c4c011b77166deccd8682035bfeef00e432eafb704b4044b74e2202a023
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/bcff7c4c011b77166deccd8682035bfeef00e432eafb704b4044b74e2202a023/
Threat name:
Win32.Ransomware.StopCrypt
Create hunting rule
Status:
Malicious
First seen:
2024-04-22 13:26:07 UTC
File Type:
PE (Exe)
Extracted files:
32
AV detection:
18 of 24 (75.00%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=xt7xytabdn3rm3pmzwdiea2373xqbzbs5l5xas2ais3u4iqcuarq._file
Verdict:
malicious
Result
Malware family:
zgrat
Create hunting rule
Score:
  10/10
Tags:
family:sectoprat family:stealc family:zgrat rat stealer trojan
Link:
https://tria.ge/reports/240422-qphg7sbh65/
Behaviour
Checks SCSI registry key(s)
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
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
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Downloads MZ/PE file
Stealc
ZGRat
Detect ZGRat V1
SectopRAT
SectopRAT payload
Unpacked files
SH256 hash:
a1ff96ad65a9ead5053b1de9ed94a03ff792cb4f39d84e3123f62ab22fb71e29
MD5 hash:
37862a13464da087a12b6b45fe34f9fe
SHA1 hash:
9214969d475793f2647cbea48760f29998c907d5
Link:
https://www.unpac.me/results/6f4a7134-0deb-42bf-bcb2-d54b6670bddc/
SH256 hash:
bcff7c4c011b77166deccd8682035bfeef00e432eafb704b4044b74e2202a023
MD5 hash:
4d03b24fd821d8ff1bd65b2d2a91e783
SHA1 hash:
c63d6490895ec91b0a7878829c542325c2d64a49
Link:
https://www.unpac.me/results/6f4a7134-0deb-42bf-bcb2-d54b6670bddc/
Malware family:
Stealc
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/bcff7c4c011b/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

File information

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

Web download

Stealc

Executable exe bcff7c4c011b77166deccd8682035bfeef00e432eafb704b4044b74e2202a023

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/2804701/
  
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::FindNextVolumeW
KERNEL32.dll::SetFirmwareEnvironmentVariableA
KERNEL32.dll::LoadLibraryW
KERNEL32.dll::LoadLibraryA
KERNEL32.dll::GetVolumeInformationW
WIN_BASE_EXEC_APICan Execute other programsKERNEL32.dll::WriteConsoleA
KERNEL32.dll::WriteConsoleW
KERNEL32.dll::SetConsoleDisplayMode
KERNEL32.dll::SetConsoleTitleW
KERNEL32.dll::SetStdHandle
KERNEL32.dll::GetConsoleAliasesLengthA
KERNEL32.dll::GetConsoleAliasExesLengthW
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

Comments