MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 16161c96d60cc07c48f29c05978e4b37e4c9c18f114581deb30fd7aa26a83fd7. 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: 15


Intelligence 15 IOCs YARA 7 File information Comments

SHA256 hash: 16161c96d60cc07c48f29c05978e4b37e4c9c18f114581deb30fd7aa26a83fd7
SHA3-384 hash: 74d77bfa5e7b3145bf72b4ba9ecdfadfd0e22e422c26a761f714d55777f0de6ae9546be95b761393a2dbddfa40c75460
SHA1 hash: 40a571a43d72dea61746c7beca8c8ab37aa03b83
MD5 hash: 090913255015a15c36a0c0a6f24356d2
humanhash: vermont-fish-item-oregon
File name:Built.exe
Download: download sample
Signature BlankGrabber
File size:8'621'580 bytes
First seen:2024-07-18 14:05:07 UTC
Last seen:2024-07-24 11:34:31 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 456e8615ad4320c9f54e50319a19df9c (15 x SVCStealer, 10 x BlankGrabber, 5 x CoinMiner)
ssdeep 196608:/wVQXwuL9urErvI9pWjgN3ZdahF0pbH1AYSEpzCtQsNI/Sx3mUj:wiurEUWjqeWxQV6nAvj
TLSH T1FF96338063E44C66FCBB523EC536981B8773F86913E0E6CB02E446825F536A26D3B775
TrID 70.8% (.CPL) Windows Control Panel Item (generic) (57583/11/19)
12.9% (.EXE) Win64 Executable (generic) (10523/12/4)
6.2% (.EXE) Win16 NE executable (generic) (5038/12/1)
2.5% (.ICL) Windows Icons Library (generic) (2059/9)
2.4% (.EXE) OS/2 Executable (generic) (2029/13)
Reporter vm001cn
Tags:BlankGrabber exe

Intelligence


File Origin
# of uploads :
3
# of downloads :
347
Origin country :
US US
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Built.exe
Verdict:
Malicious activity
Analysis date:
2024-07-18 13:00:54 UTC
Tags:
blankgrabber python susp-powershell discordgrabber generic stealer growtopia upx discord evasion

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
93.3%
Tags:
Encryption Execution Network Static Stealth
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %temp% subdirectories
Restart of the analyzed sample
Сreating synchronization primitives
Running batch commands
Creating a process with a hidden window
DNS request
Connection attempt
Sending a custom TCP request
Searching for synchronization primitives
Reading critical registry keys
Launching a process
Creating a window
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:
expand lolbin microsoft_visual_cc overlay packed
Result
Verdict:
MALICIOUS
Result
Threat name:
Blank Grabber
Detection:
malicious
Classification:
rans.troj.spyw.expl.evad
Score:
100 / 100
Signature
Adds a directory exclusion to Windows Defender
AI detected suspicious sample
Bypasses PowerShell execution policy
Encrypted powershell cmdline option found
Found malware configuration
Found many strings related to Crypto-Wallets (likely being stolen)
Loading BitLocker PowerShell Module
Machine Learning detection for sample
Modifies existing user documents (likely ransomware behavior)
Modifies Windows Defender protection settings
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
Removes signatures from Windows Defender
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
Suspicious powershell command line found
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Crypto Currency Wallets
Very long command line found
Writes or reads registry keys via WMI
Yara detected Blank Grabber
Yara detected Telegram RAT
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1476017 Sample: Built.exe Startdate: 18/07/2024 Architecture: WINDOWS Score: 100 67 discord.com 2->67 69 ip-api.com 2->69 83 Found malware configuration 2->83 85 Yara detected Blank Grabber 2->85 87 Yara detected Telegram RAT 2->87 89 8 other signatures 2->89 11 Built.exe 61 2->11         started        signatures3 process4 file5 59 C:\Users\user\AppData\Local\Temp\...\rar.exe, PE32+ 11->59 dropped 61 C:\Users\user\AppData\Local\...\rarreg.key, ASCII 11->61 dropped 63 C:\Users\user\AppData\...\unicodedata.pyd, PE32+ 11->63 dropped 65 55 other files (none is malicious) 11->65 dropped 103 Very long command line found 11->103 105 Modifies Windows Defender protection settings 11->105 107 Adds a directory exclusion to Windows Defender 11->107 109 Removes signatures from Windows Defender 11->109 15 Built.exe 1 88 11->15         started        signatures6 process7 dnsIp8 71 discord.com 162.159.128.233, 443, 49725 CLOUDFLARENETUS United States 15->71 73 ip-api.com 208.95.112.1, 49724, 80 TUT-ASUS United States 15->73 75 Very long command line found 15->75 77 Found many strings related to Crypto-Wallets (likely being stolen) 15->77 79 Tries to harvest and steal browser information (history, passwords, etc) 15->79 81 5 other signatures 15->81 19 cmd.exe 1 15->19         started        22 cmd.exe 1 15->22         started        24 cmd.exe 15->24         started        26 20 other processes 15->26 signatures9 process10 signatures11 91 Suspicious powershell command line found 19->91 93 Very long command line found 19->93 95 Encrypted powershell cmdline option found 19->95 101 2 other signatures 19->101 28 powershell.exe 23 19->28         started        31 conhost.exe 19->31         started        97 Modifies Windows Defender protection settings 22->97 99 Removes signatures from Windows Defender 22->99 33 powershell.exe 23 22->33         started        44 2 other processes 22->44 35 powershell.exe 24->35         started        38 conhost.exe 24->38         started        40 getmac.exe 26->40         started        42 systeminfo.exe 26->42         started        46 38 other processes 26->46 process12 file13 111 Loading BitLocker PowerShell Module 28->111 55 C:\Users\user\AppData\...\mud0wbrh.cmdline, Unicode 35->55 dropped 48 csc.exe 35->48         started        113 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 40->113 115 Writes or reads registry keys via WMI 40->115 57 C:\Users\user\AppData\Local\Temp\1GxuL.zip, RAR 46->57 dropped signatures14 process15 file16 53 C:\Users\user\AppData\Local\...\mud0wbrh.dll, PE32 48->53 dropped 51 cvtres.exe 48->51         started        process17
Threat name:
Win64.Trojan.Generic
Status:
Suspicious
First seen:
2024-07-18 14:06:06 UTC
File Type:
PE+ (Exe)
Extracted files:
583
AV detection:
15 of 38 (39.47%)
Threat level:
  5/5
Verdict:
malicious
Result
Malware family:
blankgrabber
Score:
  10/10
Tags:
family:blankgrabber execution spyware stealer upx
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Detects videocard installed
Enumerates processes with tasklist
Gathers system information
Enumerates physical storage devices
Accesses cryptocurrency files/wallets, possible credential harvesting
Legitimate hosting services abused for malware hosting/C2
Looks up external IP address via web service
Executes dropped EXE
Loads dropped DLL
Reads user/profile data of web browsers
UPX packed file
Command and Scripting Interpreter: PowerShell
Unpacked files
SH256 hash:
16161c96d60cc07c48f29c05978e4b37e4c9c18f114581deb30fd7aa26a83fd7
MD5 hash:
090913255015a15c36a0c0a6f24356d2
SHA1 hash:
40a571a43d72dea61746c7beca8c8ab37aa03b83
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
Rule name:PE_Digital_Certificate
Author:albertzsigovits
Rule name:PE_Potentially_Signed_Digital_Certificate
Author:albertzsigovits
Rule name:PyInstaller_Packed_April_2024
Author:NDA0E
Description:Detects files packed with PyInstaller

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::CreateWindowExW

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