MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 73472cfc52f2732b933e385ef80b4541191c45c995ce5c42844484c33c9867a3. 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



Quakbot


Vendor detections: 8


Intelligence 8 IOCs YARA 7 File information Comments

SHA256 hash: 73472cfc52f2732b933e385ef80b4541191c45c995ce5c42844484c33c9867a3
SHA3-384 hash: f01883bd5fa04e8a43b011d7dde40a21595ea6a400b6cd7ff2e5188eb6945fc24b5fcf5a13aa5aba3de05a2e18374eb3
SHA1 hash: e76211f214c1bcd7eb4ab21478d11a50c31d5da7
MD5 hash: 483b57478ab379546ae9fbab1c0185fa
humanhash: burger-eighteen-social-uniform
File name:3d043d.msi
Download: download sample
Signature Quakbot
File size:6'098'944 bytes
First seen:2024-02-06 15:03:16 UTC
Last seen:2024-02-06 16:40:09 UTC
File type:Microsoft Software Installer (MSI) msi
MIME type:application/x-msi
ssdeep 98304:mihTySajXEjCVXrepfrULCZf7ACNQB0zmlwXU8ern7beyN:OjjIzULqpQBv17r3eyN
TLSH T16F56E112BA8EC536E66D8176DA68EB2B65B97FF2073184D773D8389A0E704C15271F03
TrID 80.0% (.MSI) Microsoft Windows Installer (454500/1/170)
10.7% (.MST) Windows SDK Setup Transform script (61000/1/5)
7.8% (.MSP) Windows Installer Patch (44509/10/5)
1.4% (.) Generic OLE2 / Multistream Compound (8000/1)
Reporter pr0xylife
Tags:msi Qakbot Quakbot tchk08

Intelligence


File Origin
# of uploads :
2
# of downloads :
268
Origin country :
DE DE
Vendor Threat Intelligence
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
anti-vm evasive fingerprint lolbin msiexec qbot remote shell32
Result
Threat name:
Bazar Loader, Qbot
Detection:
malicious
Classification:
troj.evad
Score:
84 / 100
Signature
Check for Windows Defender sandbox
Drops executables to the windows directory (C:\Windows) and starts them
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Yara detected Bazar Loader
Yara detected Qbot
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1387629 Sample: 3d043d.msi Startdate: 06/02/2024 Architecture: WINDOWS Score: 84 36 Multi AV Scanner detection for dropped file 2->36 38 Multi AV Scanner detection for submitted file 2->38 40 Yara detected Qbot 2->40 42 Yara detected Bazar Loader 2->42 6 msiexec.exe 19 37 2->6         started        10 rundll32.exe 2->10         started        12 msiexec.exe 11 2->12         started        process3 file4 20 C:\Windows\Installer\MSICBAD.tmp, PE32 6->20 dropped 22 C:\Windows\Installer\MSIC998.tmp, PE32 6->22 dropped 24 C:\Windows\Installer\MSIC968.tmp, PE32 6->24 dropped 32 4 other malicious files 6->32 dropped 44 Drops executables to the windows directory (C:\Windows) and starts them 6->44 14 MSICBAD.tmp 6->14         started        16 msiexec.exe 6->16         started        18 msiexec.exe 6->18         started        46 Check for Windows Defender sandbox 10->46 26 C:\Users\user\AppData\Local\...\MSIC603.tmp, PE32 12->26 dropped 28 C:\Users\user\AppData\Local\...\MSIC5D3.tmp, PE32 12->28 dropped 30 C:\Users\user\AppData\Local\...\MSIC5A3.tmp, PE32 12->30 dropped 34 5 other files (none is malicious) 12->34 dropped signatures5 process6
Threat name:
Win32.Backdoor.Quakbot
Status:
Malicious
First seen:
2024-02-05 11:22:32 UTC
File Type:
Binary (Archive)
Extracted files:
114
AV detection:
12 of 23 (52.17%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  6/10
Tags:
n/a
Behaviour
Checks SCSI registry key(s)
Modifies data under HKEY_USERS
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of WriteProcessMemory
Uses Volume Shadow Copy service COM API
Drops file in Windows directory
Executes dropped EXE
Loads dropped DLL
Enumerates connected drives
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:DebuggerCheck__QueryInfo
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:Detect_LATAM_MSI_Banker
Rule name:maldoc_find_kernel32_base_method_1
Author:Didier Stevens (https://DidierStevens.com)
Rule name:maldoc_OLE_file_magic_number
Author:Didier Stevens (https://DidierStevens.com)
Rule name:NET
Author:malware-lu
Rule name:suspicious_msi_file
Author:Johnk3r
Description:Detects common strings, DLL and API in Banker_BR

File information


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

Comments