MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a879fcea4ce6f6041ffc6271c261cf6fc09ec21ac118db277572ddf7b08e8708. 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 17 File information Comments
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SHA256 hash: a879fcea4ce6f6041ffc6271c261cf6fc09ec21ac118db277572ddf7b08e8708
SHA3-384 hash: 5015ec4b07c5041e97da87ae96f754e15c1d0b561457dfdb661ff479ee14cc2341c5147852c56a33e09b8d0fc08faa24
SHA1 hash: 5e0d1a179f0a14e9939e8056e46846bc7eadb2bf
MD5 hash: 95567cf5f31a7d7f34ae092e68f9999d
humanhash: november-whiskey-oklahoma-nineteen
File name:Built (1).exe
Download: download sample
Signature BlankGrabber
Create hunting rule
File size:7'762'522 bytes
First seen:2024-05-15 22:58:20 UTC
Last seen:2024-05-15 23:24:44 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f4f2e2b03fe5666a721620fcea3aea9b (15 x BlankGrabber, 10 x PythonStealer, 6 x CrealStealer)
ssdeep 196608:xh2UKt18urErvI9pWjgaAnajMsK23fQC//OoLxh:Gt18urEUWjJjYoo4jLxh
TLSH T16376338932A559F0F96B013F9A638412D7B7B8751390D7AF07B872921F036E18D3B7A1
TrID 72.7% (.CPL) Windows Control Panel Item (generic) (57583/11/19)
13.2% (.EXE) Win64 Executable (generic) (10523/12/4)
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)
Reporter kafan_shengui
Tags:BlankGrabber exe

Intelligence

File Origin
# of uploads :
2
# of downloads :
343
Origin country :
US US
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
a879fcea4ce6f6041ffc6271c261cf6fc09ec21ac118db277572ddf7b08e8708.exe
Verdict:
Malicious activity
Analysis date:
2024-05-15 23:00:44 UTC
Tags:
uac discord evasion blankgrabber stealer python
Link:
https://app.any.run/tasks/c8e3c273-c932-46f2-a290-d03e6eb3c663

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Python.Packed.59.8341.20575.UNOFFICIAL
Create hunting rule

Gathering data
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
Creating a file
DNS request
Connection attempt
Sending a custom TCP request
Launching a process
Reading critical registry keys
Launching the process to change network settings
Using the Windows Management Instrumentation requests
Searching for synchronization primitives
Creating a window
Stealing user critical data
Launching a tool to kill processes
Adding an exclusion to Microsoft Defender
Changing the hosts file
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
crypto expand lolbin overlay packed packed pyinstaller pyinstaller
Link:
https://www.filescan.io/uploads/66453e37d5c40bffee5f74e1/reports/4dbfe8a3-a19d-464c-acfc-01b15c09c1da/overview
Verdict:
Malicious
Labled as:
Zusy.Generic
Link:
https://www.hybrid-analysis.com/sample/a879fcea4ce6f6041ffc6271c261cf6fc09ec21ac118db277572ddf7b08e8708
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.
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/fd769401-6468-46ef-ad04-83c87c5cd19a
Result
Threat name:
Blank Grabber
Create hunting rule
Detection:
malicious
Classification:
rans.troj.adwa.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1442321
Signature
Adds a directory exclusion to Windows Defender
Antivirus / Scanner detection for submitted sample
Antivirus detection for URL or domain
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 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: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: Powershell Defender Disable Scan Feature
Sigma detected: Rar Usage with Password and Compression Level
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:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1442321 Sample: Built (1).exe Startdate: 16/05/2024 Architecture: WINDOWS Score: 100 58 ip-api.com 2->58 60 canary.discord.com 2->60 80 Antivirus detection for URL or domain 2->80 82 Antivirus / Scanner detection for submitted sample 2->82 84 Sigma detected: Capture Wi-Fi password 2->84 86 12 other signatures 2->86 10 Built (1).exe 22 2->10         started        signatures3 process4 file5 48 C:\Users\user\AppData\Local\Temp\...\rar.exe, PE32+ 10->48 dropped 50 C:\Users\user\AppData\Local\...\rarreg.key, ASCII 10->50 dropped 52 C:\Users\user\AppData\...\unicodedata.pyd, PE32+ 10->52 dropped 54 16 other files (none is malicious) 10->54 dropped 13 Built (1).exe 107 10->13         started        process6 dnsIp7 62 ip-api.com 208.95.112.1, 49738, 80 TUT-ASUS United States 13->62 64 canary.discord.com 162.159.128.233, 443, 49739 CLOUDFLARENETUS United States 13->64 94 Found many strings related to Crypto-Wallets (likely being stolen) 13->94 96 Tries to harvest and steal browser information (history, passwords, etc) 13->96 98 Modifies Windows Defender protection settings 13->98 100 6 other signatures 13->100 17 cmd.exe 1 13->17         started        20 cmd.exe 1 13->20         started        22 cmd.exe 1 13->22         started        24 27 other processes 13->24 signatures8 process9 signatures10 66 Suspicious powershell command line found 17->66 68 Uses cmd line tools excessively to alter registry or file data 17->68 70 Uses netsh to modify the Windows network and firewall settings 17->70 26 powershell.exe 23 17->26         started        29 conhost.exe 17->29         started        72 Modifies Windows Defender protection settings 20->72 74 Removes signatures from Windows Defender 20->74 31 powershell.exe 23 20->31         started        41 2 other processes 20->41 76 Adds a directory exclusion to Windows Defender 22->76 33 powershell.exe 22->33         started        35 conhost.exe 22->35         started        78 Tries to harvest and steal WLAN passwords 24->78 37 getmac.exe 24->37         started        39 systeminfo.exe 24->39         started        43 52 other processes 24->43 process11 file12 88 Loading BitLocker PowerShell Module 26->88 90 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 37->90 92 Writes or reads registry keys via WMI 37->92 56 C:\Users\user\AppData\Local\Temp\R4aMj.zip, RAR 43->56 dropped 46 conhost.exe 43->46         started        signatures13 process14
Score:
93%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/a879fcea4ce6f6041ffc6271c261cf6fc09ec21ac118db277572ddf7b08e8708
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a879fcea4ce6f6041ffc6271c261cf6fc09ec21ac118db277572ddf7b08e8708/
Threat name:
Win64.Trojan.Zusy
Create hunting rule
Status:
Malicious
First seen:
2024-05-15 18:52:46 UTC
File Type:
PE+ (Exe)
Extracted files:
543
AV detection:
20 of 23 (86.96%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=vb47z2sm433aih74mjy4eyopn7aj5qq2yemnwj3volo7pmeoq4ea._file
Result
Malware family:
blankgrabber
Create hunting rule
Score:
  10/10
Tags:
family:blankgrabber execution pyinstaller spyware stealer upx
Link:
https://tria.ge/reports/240515-2ydfdsgg68/
Behaviour
Detects videocard installed
Enumerates processes with tasklist
Gathers system information
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Views/modifies file attributes
Enumerates physical storage devices
Accesses cryptocurrency files/wallets, possible credential harvesting
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
Drops file in Drivers directory
Unpacked files
SH256 hash:
a879fcea4ce6f6041ffc6271c261cf6fc09ec21ac118db277572ddf7b08e8708
MD5 hash:
95567cf5f31a7d7f34ae092e68f9999d
SHA1 hash:
5e0d1a179f0a14e9939e8056e46846bc7eadb2bf
Detections:
PyInstaller
Create hunting rule
Link:
https://www.unpac.me/results/ea5c5437-f022-4603-b437-416d19982c40/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/a879fcea4ce6/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/a879fcea4ce6f6041ffc6271c261cf6fc09ec21ac118db277572ddf7b08e8708

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
Create hunting rule
Author:phoul (@phoul)
Description:Look for Blowfish constants
Rule name:CAS_Malware_Hunting
Create hunting rule
Author:Michael Reinprecht
Description:DEMO CAS YARA Rules for sample2.exe
Rule name:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerException__ConsoleCtrl
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerException__SetConsoleCtrl
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:ldpreload
Create hunting rule
Author:xorseed
Reference:https://stuff.rop.io/
Rule name:MD5_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:PyInstaller
Create hunting rule
Author:@bartblaze
Description:Identifies executable converted using PyInstaller.
Rule name:PyInstaller_Packed_April_2024
Create hunting rule
Author:NDA0N
Description:Detects files packed with PyInstaller
Rule name:RIPEMD160_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SEH__vectored
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:SHA1_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA1 constants
Rule name:SHA512_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA384/SHA512 constants
Rule name:upxHook
Create hunting rule
Author:@r3dbU7z
Description:Detect artifacts from 'upxHook' - modification of UPX packer
Reference:https://bazaar.abuse.ch/sample/6352be8aa5d8063673aa428c3807228c40505004320232a23d99ebd9ef48478a/
Rule name:vmdetect
Create hunting rule
Author:nex
Description:Possibly employs anti-virtualization techniques
Rule name:WHIRLPOOL_Constants
Create hunting rule
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::RemoveDirectoryW
KERNEL32.dll::SetDllDirectoryW
WIN_USER_APIPerforms GUI ActionsUSER32.dll::CreateWindowExW

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