MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 9af13f157af0575a379bef789f8c596584e2721de3ba607c88a9601140e28cd8. 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: 13


Intelligence 13 IOCs YARA 6 File information Comments

SHA256 hash: 9af13f157af0575a379bef789f8c596584e2721de3ba607c88a9601140e28cd8
SHA3-384 hash: e1b2013db4ad87a9afca1bd3d179f14f7af65b27591f549a974bdc69f4e72939368cb8d8aa57769b1ae95fb5d7ac88cf
SHA1 hash: 2692b46e817a81f3f94dbee53f508e2e875a075f
MD5 hash: edfd96e5650f8bdcc1a8e090ee5e1069
humanhash: single-berlin-four-oranges
File name:file
Download: download sample
Signature BlankGrabber
File size:30'174'415 bytes
First seen:2024-12-08 20:13:12 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 72c4e339b7af8ab1ed2eb3821c98713a (48 x BlankGrabber, 26 x PythonStealer, 7 x LunaStealer)
ssdeep 786432:wa6by3k5W3MfwXuOsXewDDGKld+dbmPOg70bykU+9qoSJHk:wa6e3k5FYXuOaewDDGKld+tm2g70jU+G
TLSH T196673319E2A05DE0EC65813D7D6BD84683B7F0269BB1D9D70B5C8B105F23BC20A73EA5
TrID 70.8% (.CPL) Windows Control Panel Item (generic) (57583/11/19)
12.9% (.EXE) Win64 Executable (generic) (10522/11/4)
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)
Magika pebin
File icon (PE):PE icon
dhash icon 92e0b496a6cada72 (12 x RedLineStealer, 7 x RaccoonStealer, 5 x BlankGrabber)
Reporter Bitsight
Tags:BlankGrabber exe


Avatar
Bitsight
url: http://31.41.244.11/files/main.exe

Intelligence


File Origin
# of uploads :
1
# of downloads :
433
Origin country :
US US
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
file
Verdict:
Malicious activity
Analysis date:
2024-12-08 20:16:25 UTC
Tags:
blankgrabber stealer python sfx dropper screenshot discord evasion telegram pyinstaller susp-powershell discordgrabber generic growtopia ims-api upx

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
97.4%
Tags:
installer shellcode sage
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %temp% subdirectories
Restart of the analyzed sample
Creating a window
Running batch commands
Creating a process from a recently created file
Searching for the window
Сreating synchronization primitives
Searching for synchronization primitives
Creating a file
Creating a process with a hidden window
DNS request
Connection attempt
Sending a custom TCP request
Reading critical registry keys
Launching a process
Stealing user critical data
Adding an exclusion to Microsoft Defender
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
adaptive-context expand lolbin microsoft_visual_cc overlay packed packed packer_detected
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)
Found pyInstaller with non standard icon
Loading BitLocker PowerShell Module
Machine Learning detection for dropped file
Modifies existing user documents (likely ransomware behavior)
Modifies Windows Defender protection settings
Multi AV Scanner detection for dropped file
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: Rare Remote Thread Creation By Uncommon Source Image
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 steal Crypto Currency Wallets
Uses the Telegram API (likely for C&C communication)
Writes or reads registry keys via WMI
Yara detected Blank Grabber
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1571058 Sample: file.exe Startdate: 08/12/2024 Architecture: WINDOWS Score: 100 130 api.telegram.org 2->130 132 ip-api.com 2->132 134 discord.com 2->134 168 Found malware configuration 2->168 170 Yara detected Blank Grabber 2->170 172 Sigma detected: Powershell Defender Disable Scan Feature 2->172 176 8 other signatures 2->176 15 file.exe 13 2->15         started        signatures3 174 Uses the Telegram API (likely for C&C communication) 130->174 process4 file5 108 C:\Users\user\AppData\...\unicodedata.pyd, PE32+ 15->108 dropped 110 C:\Users\user\AppData\Local\...\select.pyd, PE32+ 15->110 dropped 112 C:\Users\user\AppData\Local\...\python311.dll, PE32+ 15->112 dropped 114 8 other malicious files 15->114 dropped 142 Modifies Windows Defender protection settings 15->142 144 Removes signatures from Windows Defender 15->144 146 Found pyInstaller with non standard icon 15->146 19 file.exe 15->19         started        21 powershell.exe 15->21         started        24 conhost.exe 15->24         started        26 MpCmdRun.exe 15->26         started        signatures6 process7 signatures8 28 cmd.exe 1 19->28         started        178 Loading BitLocker PowerShell Module 21->178 process9 signatures10 198 Suspicious powershell command line found 28->198 200 Encrypted powershell cmdline option found 28->200 202 Bypasses PowerShell execution policy 28->202 204 Adds a directory exclusion to Windows Defender 28->204 31 Build.exe 6 28->31         started        34 conhost.exe 28->34         started        process11 file12 116 C:\ProgramData\Microsoft\hacn.exe, PE32+ 31->116 dropped 118 C:\ProgramData\Microsoft\based.exe, PE32+ 31->118 dropped 36 based.exe 22 31->36         started        40 hacn.exe 13 31->40         started        process13 file14 88 C:\Users\user\AppData\...\unicodedata.pyd, PE32+ 36->88 dropped 90 C:\Users\user\AppData\Local\...\sqlite3.dll, PE32+ 36->90 dropped 92 C:\Users\user\AppData\Local\...\select.pyd, PE32+ 36->92 dropped 100 16 other malicious files 36->100 dropped 180 Multi AV Scanner detection for dropped file 36->180 182 Modifies Windows Defender protection settings 36->182 184 Adds a directory exclusion to Windows Defender 36->184 186 Removes signatures from Windows Defender 36->186 42 based.exe 91 36->42         started        94 C:\Users\user\AppData\...\unicodedata.pyd, PE32+ 40->94 dropped 96 C:\Users\user\AppData\Local\...\select.pyd, PE32+ 40->96 dropped 98 C:\Users\user\AppData\Local\...\python310.dll, PE32+ 40->98 dropped 102 8 other files (7 malicious) 40->102 dropped 188 Found pyInstaller with non standard icon 40->188 46 hacn.exe 40->46         started        signatures15 process16 dnsIp17 136 ip-api.com 208.95.112.1, 49740, 80 TUT-ASUS United States 42->136 138 api.telegram.org 149.154.167.220, 443, 49742 TELEGRAMRU United Kingdom 42->138 140 discord.com 162.159.136.232, 443, 49741 CLOUDFLARENETUS United States 42->140 190 Found many strings related to Crypto-Wallets (likely being stolen) 42->190 192 Tries to harvest and steal browser information (history, passwords, etc) 42->192 194 Modifies Windows Defender protection settings 42->194 196 4 other signatures 42->196 48 cmd.exe 42->48         started        51 cmd.exe 42->51         started        53 cmd.exe 42->53         started        57 23 other processes 42->57 55 cmd.exe 1 46->55         started        signatures18 process19 signatures20 148 Encrypted powershell cmdline option found 48->148 59 powershell.exe 48->59         started        62 conhost.exe 48->62         started        150 Adds a directory exclusion to Windows Defender 51->150 64 powershell.exe 51->64         started        67 conhost.exe 51->67         started        75 2 other processes 53->75 69 Build.exe 55->69         started        71 conhost.exe 55->71         started        152 Suspicious powershell command line found 57->152 154 Modifies Windows Defender protection settings 57->154 156 Removes signatures from Windows Defender 57->156 73 getmac.exe 57->73         started        77 43 other processes 57->77 process21 file22 104 C:\Users\user\AppData\...\ll0wj4n3.cmdline, Unicode 59->104 dropped 79 csc.exe 59->79         started        158 Loading BitLocker PowerShell Module 64->158 160 Multi AV Scanner detection for dropped file 69->160 162 Machine Learning detection for dropped file 69->162 82 hacn.exe 69->82         started        84 based.exe 69->84         started        164 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 73->164 166 Writes or reads registry keys via WMI 73->166 106 C:\Users\user\AppData\Local\Temp\FhEEJ.zip, RAR 77->106 dropped signatures23 process24 file25 120 C:\Users\user\AppData\Local\...\ll0wj4n3.dll, PE32 79->120 dropped 86 cmd.exe 82->86         started        122 C:\Users\user\AppData\...\unicodedata.pyd, PE32+ 84->122 dropped 124 C:\Users\user\AppData\Local\...\sqlite3.dll, PE32+ 84->124 dropped 126 C:\Users\user\AppData\Local\...\select.pyd, PE32+ 84->126 dropped 128 16 other malicious files 84->128 dropped process26
Gathering data
Threat name:
Win64.Trojan.Amadey
Status:
Malicious
First seen:
2024-12-08 20:14:08 UTC
File Type:
PE+ (Exe)
Extracted files:
2006
AV detection:
17 of 24 (70.83%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  8/10
Tags:
collection credential_access defense_evasion discovery execution pyinstaller spyware stealer upx
Behaviour
Detects videocard installed
Gathers system information
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Browser Information Discovery
Detects Pyinstaller
Enumerates physical storage devices
System Location Discovery: System Language 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
Checks computer location settings
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
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:PyInstaller
Author:@bartblaze
Description:Identifies executable converted using PyInstaller. This rule by itself does NOT necessarily mean the detected file is malicious.
Rule name:Sus_Obf_Enc_Spoof_Hide_PE
Author:XiAnzheng
Description:Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)

File information


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

Web download

BlankGrabber

Executable exe 9af13f157af0575a379bef789f8c596584e2721de3ba607c88a9601140e28cd8

(this sample)

  
Dropped by
Amadey
  
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 (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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