MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 85f1d6c7ae21dd89e2421559fd8192ad9d885529eb684786aeda8abc273870bc. 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 26 File information Comments

SHA256 hash: 85f1d6c7ae21dd89e2421559fd8192ad9d885529eb684786aeda8abc273870bc
SHA3-384 hash: 55551c1610795549fcf43dbeaca19aa9b8ccfa43b2e3c6b8d6c680ea82f476b8a96c84bb0ce9660481c7abc6d0bf495b
SHA1 hash: 0e3626c6fa7bd68417244bbbb310173e67c42401
MD5 hash: 9e5a9429bc193ee14ebc1f87201be518
humanhash: sad-pip-comet-monkey
File name:AimStar.exe
Download: download sample
Signature BlankGrabber
File size:8'116'372 bytes
First seen:2025-01-01 21:10:08 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 72c4e339b7af8ab1ed2eb3821c98713a (50 x BlankGrabber, 26 x PythonStealer, 7 x LunaStealer)
ssdeep 196608:ulD+kdZwfI9jUCBB7m+mKOY7rXwZusooDmhfvsbnTNWa:a5wIHL7HmBYXwYoaUNl
TLSH T1C18633466AC104FAF977A83DD5928A1BCB327E215760DAD7437047B50EB3AF0487A327
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 8e27714969731396 (2 x BlankGrabber)
Reporter aachum
Tags:BlankGrabber exe


Avatar
iamaachum
https://www.youtube.com/watch?v=sHAh6hcuF8c => https://ru.files.fm/u/hepgydmemp

Intelligence


File Origin
# of uploads :
1
# of downloads :
538
Origin country :
ES ES
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
AimStar.exe
Verdict:
Malicious activity
Analysis date:
2025-01-01 21:10:48 UTC
Tags:
evasion blankgrabber stealer python screenshot discord 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:
99.9%
Tags:
autorun shell virus sage
Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Running batch commands
Creating a process with a hidden window
DNS request
Launching a process
Using the Windows Management Instrumentation requests
Searching for synchronization primitives
Connection attempt
Sending an HTTP GET request
Creating a file
Sending a custom TCP request
Reading critical registry keys
Launching the process to change network settings
Creating a file in the %temp% subdirectories
Restart of the analyzed sample
Creating a window
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 packed packer_detected
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:
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
Check if machine is in data center or colocation facility
Encrypted powershell cmdline option found
Found many strings related to Crypto-Wallets (likely being stolen)
Found pyInstaller with non standard icon
Loading BitLocker PowerShell Module
Modifies existing user documents (likely ransomware behavior)
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: 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 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 Telegram RAT
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1583098 Sample: AimStar.exe Startdate: 01/01/2025 Architecture: WINDOWS Score: 100 67 skoch-6bauu.in 2->67 69 ip-api.com 2->69 71 discord.com 2->71 85 Sigma detected: Capture Wi-Fi password 2->85 87 Multi AV Scanner detection for submitted file 2->87 89 Yara detected Blank Grabber 2->89 91 11 other signatures 2->91 11 AimStar.exe 22 2->11         started        signatures3 process4 file5 55 C:\Users\user\AppData\Local\Temp\...\rar.exe, PE32+ 11->55 dropped 57 C:\Users\user\AppData\Local\...\rarreg.key, ASCII 11->57 dropped 59 C:\Users\user\AppData\...\unicodedata.pyd, PE32+ 11->59 dropped 61 16 other files (none is malicious) 11->61 dropped 107 Modifies Windows Defender protection settings 11->107 109 Adds a directory exclusion to Windows Defender 11->109 111 Tries to harvest and steal WLAN passwords 11->111 113 2 other signatures 11->113 15 AimStar.exe 1 88 11->15         started        signatures6 process7 dnsIp8 73 ip-api.com 208.95.112.1, 49709, 49824, 80 TUT-ASUS United States 15->73 75 discord.com 162.159.128.233, 443, 49830 CLOUDFLARENETUS United States 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 Modifies Windows Defender protection settings 15->81 83 5 other signatures 15->83 19 cmd.exe 1 15->19         started        22 cmd.exe 1 15->22         started        24 cmd.exe 15->24         started        26 31 other processes 15->26 signatures9 process10 signatures11 93 Suspicious powershell command line found 19->93 95 Uses cmd line tools excessively to alter registry or file data 19->95 97 Encrypted powershell cmdline option found 19->97 105 3 other signatures 19->105 28 powershell.exe 23 19->28         started        31 conhost.exe 19->31         started        99 Modifies Windows Defender protection settings 22->99 33 powershell.exe 23 22->33         started        43 2 other processes 22->43 101 Adds a directory exclusion to Windows Defender 24->101 35 powershell.exe 24->35         started        37 conhost.exe 24->37         started        103 Tries to harvest and steal WLAN passwords 26->103 39 getmac.exe 26->39         started        41 systeminfo.exe 26->41         started        45 58 other processes 26->45 process12 file13 115 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 28->115 117 Writes or reads registry keys via WMI 28->117 119 Loading BitLocker PowerShell Module 28->119 63 C:\Users\user\AppData\...\hrvhwpsf.cmdline, Unicode 45->63 dropped 65 C:\Users\user\AppData\Local\Temp\1KgHr.zip, RAR 45->65 dropped 48 csc.exe 45->48         started        signatures14 process15 file16 53 C:\Users\user\AppData\Local\...\hrvhwpsf.dll, PE32 48->53 dropped 51 cvtres.exe 48->51         started        process17
Threat name:
Win64.Trojan.Generic
Status:
Suspicious
First seen:
2025-01-01 21:11:06 UTC
File Type:
PE+ (Exe)
Extracted files:
396
AV detection:
13 of 38 (34.21%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  8/10
Tags:
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
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
Verdict:
Malicious
Tags:
external_ip_lookup
YARA:
n/a
Unpacked files
SH256 hash:
90341ac8dcc9ec5f9efe89945a381eb701fe15c3196f594d9d9f0f67b4fc2213
MD5 hash:
9c223575ae5b9544bc3d69ac6364f75e
SHA1 hash:
8a1cb5ee02c742e937febc57609ac312247ba386
SH256 hash:
36585912e5eaf83ba9fea0631534f690ccdc2d7ba91537166fe53e56c221e153
MD5 hash:
862f820c3251e4ca6fc0ac00e4092239
SHA1 hash:
ef96d84b253041b090c243594f90938e9a487a9a
SH256 hash:
85f1d6c7ae21dd89e2421559fd8192ad9d885529eb684786aeda8abc273870bc
MD5 hash:
9e5a9429bc193ee14ebc1f87201be518
SHA1 hash:
0e3626c6fa7bd68417244bbbb310173e67c42401
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:DebuggerCheck__QueryInfo
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:golang_david_CSC846
Author:David
Description:CSC-846 Golang
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_detect_tls_callbacks
Rule name:PE_Digital_Certificate
Author:albertzsigovits
Rule name:PE_Potentially_Signed_Digital_Certificate
Author:albertzsigovits
Rule name:RansomPyShield_Antiransomware
Author:XiAnzheng
Description:Check for Suspicious String and Import combination that Ransomware mostly abuse(can create FP)
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:vmdetect
Author:nex
Description:Possibly employs anti-virtualization techniques
Rule name:WHIRLPOOL_Constants
Author:phoul (@phoul)
Description:Look for WhirlPool constants
Rule name:XWorm_3_0_3_1_Detection
Author:Archevod
Description:Detects XWorm versions 3.0 and 3.1

File information


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

Web download

BlankGrabber

Executable exe 85f1d6c7ae21dd89e2421559fd8192ad9d885529eb684786aeda8abc273870bc

(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 (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

Comments