MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 de4bcc6c8c5f9a4027d6c2bcaabef6eebe9d0e290761beafe8c0358aa5d24556. 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



BlankGrabber


Vendor detections: 14


Intelligence 14 IOCs YARA 22 File information Comments

SHA256 hash: de4bcc6c8c5f9a4027d6c2bcaabef6eebe9d0e290761beafe8c0358aa5d24556
SHA3-384 hash: a7d087d3865f20615439c4d4c1daa5196f05d5b57cfe211de19fd95249fcd553436975a368323f7fda2cc1b6bcb28cb5
SHA1 hash: caf0e4fcbceda2603e11e4a776eabadc853c9e59
MD5 hash: b3ed749d0fbdd94c3ba04b99fdfb71bc
humanhash: eighteen-march-kitten-whiskey
File name:Built.exe.bin
Download: download sample
Signature BlankGrabber
File size:8'250'651 bytes
First seen:2025-03-16 11:46:35 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 965e162fe6366ee377aa9bc80bdd5c65 (45 x BlankGrabber, 13 x CoinMiner, 9 x Efimer)
ssdeep 196608:PWl0uNTwhLZSdE9eNTfm/pf+xk4dUk0ax8URimrbW3jmy+:xLZqy/pWu4SaxHRimrbmyN
TLSH T1C386336863E04DF5EEA32A79C882D5188672BC450F64DEC743980AEA1F175A05D7FF2C
TrID 72.7% (.CPL) Windows Control Panel Item (generic) (57583/11/19)
13.2% (.EXE) Win64 Executable (generic) (10522/11/4)
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)
Magika pebin
Reporter KatzenTech
Tags:BlankGrabber exe

Intelligence


File Origin
# of uploads :
1
# of downloads :
377
Origin country :
RU RU
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Built.exe
Verdict:
Malicious activity
Analysis date:
2025-03-15 21:51:48 UTC
Tags:
uac blankgrabber stealer autorun-startup screenshot evasion discord pyinstaller susp-powershell discordgrabber generic growtopia umbralstealer ims-api

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
99.1%
Tags:
autorun shell virus crypt
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %temp% subdirectories
Restart of the analyzed sample
Creating a window
Сreating synchronization primitives
Running batch commands
Creating a process with a hidden window
Creating a file
DNS request
Connection attempt
Sending a custom TCP request
Reading critical registry keys
Searching for synchronization primitives
Launching a process
Launching the process to change network settings
Using the Windows Management Instrumentation requests
Stealing user critical data
Adding an exclusion to Microsoft Defender
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
crypt expand expired-cert invalid-signature lolbin masquerade microsoft_visual_cc overlay signed
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:
Python Stealer, Blank Grabber
Detection:
malicious
Classification:
rans.troj.adwa.spyw.expl.evad
Score:
100 / 100
Signature
Adds a directory exclusion to Windows Defender
Bypasses PowerShell execution policy
Changes security center settings (notifications, updates, antivirus, firewall)
Encrypted powershell cmdline option found
Found malware configuration
Found many strings related to Crypto-Wallets (likely being stolen)
Joe Sandbox ML detected suspicious sample
Loading BitLocker PowerShell Module
Modifies existing user documents (likely ransomware behavior)
Modifies the hosts file
Modifies Windows Defender protection settings
Multi AV Scanner detection for submitted file
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
Removes signatures from Windows Defender
Sigma detected: Capture Wi-Fi password
Sigma detected: Dot net compiler compiles file from suspicious location
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: Powershell Defender Disable Scan Feature
Sigma detected: Rar Usage with Password and Compression Level
Sigma detected: Suspicious Encoded PowerShell Command Line
Sigma detected: Suspicious PowerShell Encoded Command Patterns
Sigma detected: Suspicious Startup Folder Persistence
Suspicious powershell command line found
Tries to harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal WLAN passwords
Tries to steal Crypto Currency Wallets
Uses cmd line tools excessively to alter registry or file data
Uses netsh to modify the Windows network and firewall settings
Writes or reads registry keys via WMI
Yara detected Blank Grabber
Yara detected Generic Python Stealer
Yara detected Telegram RAT
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1639860 Sample: Built.exe.bin.exe Startdate: 16/03/2025 Architecture: WINDOWS Score: 100 78 ip-api.com 2->78 80 discord.com 2->80 92 Found malware configuration 2->92 94 Sigma detected: Capture Wi-Fi password 2->94 96 Multi AV Scanner detection for submitted file 2->96 98 11 other signatures 2->98 12 Built.exe.bin.exe 65 2->12         started        16 svchost.exe 2->16         started        signatures3 process4 dnsIp5 68 C:\Users\user\AppData\Local\...\rarreg.key, ASCII 12->68 dropped 70 C:\Users\user\AppData\...\unicodedata.pyd, PE32+ 12->70 dropped 72 C:\Users\user\AppData\Local\...\ucrtbase.dll, PE32+ 12->72 dropped 74 59 other files (none is malicious) 12->74 dropped 124 Modifies Windows Defender protection settings 12->124 126 Adds a directory exclusion to Windows Defender 12->126 128 Tries to harvest and steal WLAN passwords 12->128 130 Removes signatures from Windows Defender 12->130 19 Built.exe.bin.exe 1 106 12->19         started        76 127.0.0.1 unknown unknown 16->76 132 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 16->132 134 Writes or reads registry keys via WMI 16->134 file6 signatures7 process8 dnsIp9 82 ip-api.com 208.95.112.1, 49698, 80 TUT-ASUS United States 19->82 84 discord.com 162.159.136.232, 443, 49699 CLOUDFLARENETUS United States 19->84 100 Found many strings related to Crypto-Wallets (likely being stolen) 19->100 102 Tries to harvest and steal browser information (history, passwords, etc) 19->102 104 Modifies Windows Defender protection settings 19->104 106 6 other signatures 19->106 23 cmd.exe 1 19->23         started        26 cmd.exe 19->26         started        28 cmd.exe 1 19->28         started        30 28 other processes 19->30 signatures10 process11 signatures12 110 Suspicious powershell command line found 23->110 112 Uses cmd line tools excessively to alter registry or file data 23->112 114 Encrypted powershell cmdline option found 23->114 122 3 other signatures 23->122 32 powershell.exe 23 23->32         started        35 conhost.exe 23->35         started        37 powershell.exe 26->37         started        40 conhost.exe 26->40         started        116 Modifies Windows Defender protection settings 28->116 42 powershell.exe 23 28->42         started        48 2 other processes 28->48 118 Adds a directory exclusion to Windows Defender 30->118 120 Tries to harvest and steal WLAN passwords 30->120 44 getmac.exe 30->44         started        46 powershell.exe 30->46         started        50 54 other processes 30->50 process13 file14 86 Loading BitLocker PowerShell Module 32->86 64 C:\Users\user\AppData\...\tn2lolip.cmdline, Unicode 37->64 dropped 52 svchost.exe 37->52         started        55 csc.exe 37->55         started        88 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 44->88 90 Writes or reads registry keys via WMI 44->90 signatures15 process16 file17 108 Changes security center settings (notifications, updates, antivirus, firewall) 52->108 58 MpCmdRun.exe 52->58         started        66 C:\Users\user\AppData\Local\...\tn2lolip.dll, PE32 55->66 dropped 60 cvtres.exe 55->60         started        signatures18 process19 process20 62 conhost.exe 58->62         started       
Threat name:
Win32.Ransomware.BlankGrabber
Status:
Malicious
First seen:
2025-03-15 21:51:51 UTC
File Type:
PE+ (Exe)
Extracted files:
583
AV detection:
22 of 36 (61.11%)
Threat level:
  5/5
Result
Malware family:
blankgrabber
Score:
  10/10
Tags:
family:blankgrabber collection credential_access defense_evasion discovery execution persistence privilege_escalation spyware stealer upx
Behaviour
Detects videocard installed
Gathers system information
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Views/modifies file attributes
Browser Information Discovery
Enumerates physical storage devices
Event Triggered Execution: Netsh Helper DLL
System Network Configuration Discovery: Wi-Fi Discovery
Enumerates processes with tasklist
UPX packed file
Accesses cryptocurrency files/wallets, possible credential harvesting
Legitimate hosting services abused for malware hosting/C2
Looks up external IP address via web service
Obfuscated Files or Information: Command Obfuscation
Clipboard Data
Executes dropped EXE
Loads dropped DLL
Reads user/profile data of web browsers
Unsecured Credentials: Credentials In Files
Command and Scripting Interpreter: PowerShell
Drops file in Drivers directory
Verdict:
Malicious
Tags:
Win.Malware.Tedy-10036920-0
YARA:
n/a
Unpacked files
SH256 hash:
de4bcc6c8c5f9a4027d6c2bcaabef6eebe9d0e290761beafe8c0358aa5d24556
MD5 hash:
b3ed749d0fbdd94c3ba04b99fdfb71bc
SHA1 hash:
caf0e4fcbceda2603e11e4a776eabadc853c9e59
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:BLOWFISH_Constants
Author:phoul (@phoul)
Description:Look for Blowfish constants
Rule name:DebuggerCheck__API
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerException__ConsoleCtrl
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerException__SetConsoleCtrl
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:golang_bin_JCorn_CSC846
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:ldpreload
Author:xorseed
Reference:https://stuff.rop.io/
Rule name:MD5_Constants
Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:PE_Digital_Certificate
Author:albertzsigovits
Rule name:RANSOMWARE
Author:ToroGuitar
Rule name:RIPEMD160_Constants
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SEH__vectored
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:SHA1_Constants
Author:phoul (@phoul)
Description:Look for SHA1 constants
Rule name:SHA512_Constants
Author:phoul (@phoul)
Description:Look for SHA384/SHA512 constants
Rule name:Sus_Obf_Enc_Spoof_Hide_PE
Author:XiAnzheng
Description:Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)
Rule name:upxHook
Author:@r3dbU7z
Description:Detect artifacts from 'upxHook' - modification of UPX packer
Reference:https://bazaar.abuse.ch/sample/6352be8aa5d8063673aa428c3807228c40505004320232a23d99ebd9ef48478a/
Rule name:upx_largefile
Author:k3nr9
Rule name:vmdetect
Author:nex
Description:Possibly employs anti-virtualization techniques
Rule name:WHIRLPOOL_Constants
Author:phoul (@phoul)
Description:Look for WhirlPool constants

File information


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

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 (FORCE_INTEGRITY)high
Reviews
IDCapabilitiesEvidence
AUTH_APIManipulates User AuthorizationADVAPI32.dll::ConvertSidToStringSidW
ADVAPI32.dll::ConvertStringSecurityDescriptorToSecurityDescriptorW
SECURITY_BASE_APIUses Security Base APIADVAPI32.dll::GetTokenInformation
WIN32_PROCESS_APICan Create Process and ThreadsKERNEL32.dll::CreateProcessW
ADVAPI32.dll::OpenProcessToken
KERNEL32.dll::CloseHandle
WIN_BASE_APIUses Win Base APIKERNEL32.dll::TerminateProcess
KERNEL32.dll::LoadLibraryExW
KERNEL32.dll::GetDriveTypeW
KERNEL32.dll::GetStartupInfoW
KERNEL32.dll::GetCommandLineW
KERNEL32.dll::GetCommandLineA
WIN_BASE_EXEC_APICan Execute other programsKERNEL32.dll::WriteConsoleW
KERNEL32.dll::ReadConsoleW
KERNEL32.dll::SetConsoleCtrlHandler
KERNEL32.dll::SetStdHandle
KERNEL32.dll::GetConsoleMode
KERNEL32.dll::GetConsoleOutputCP
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CreateDirectoryW
KERNEL32.dll::CreateFileW
KERNEL32.dll::DeleteFileW
KERNEL32.dll::FindFirstFileW
KERNEL32.dll::RemoveDirectoryW
KERNEL32.dll::SetDllDirectoryW
WIN_USER_APIPerforms GUI ActionsUSER32.dll::PeekMessageW
USER32.dll::CreateWindowExW

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