MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b7fc28f25a4aa0b3a8030419c4aa0f0004e15f67496c5c71fcebbe4b1b583f58. 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


Glupteba


Vendor detections: 12


Intelligence 12 IOCs YARA 5 File information Comments
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SHA256 hash: b7fc28f25a4aa0b3a8030419c4aa0f0004e15f67496c5c71fcebbe4b1b583f58
SHA3-384 hash: 41b6a8c6f5d27303cad8a7bcbc4aa44375c50bb95da25c8bfb23d2baf527a35e9223b15207aa1254b6e451ddb3316474
SHA1 hash: 7f5dda62660a333031b76d96e227866ad16afc75
MD5 hash: 668bbd74dce8327ef8c8f3db867bf0c5
humanhash: montana-sweet-stream-single
File name:668bbd74dce8327ef8c8f3db867bf0c5.exe
Download: download sample
Signature Glupteba
Create hunting rule
File size:960'888 bytes
First seen:2023-12-02 16:55:26 UTC
Last seen:2023-12-02 18:26:57 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'657 x AgentTesla, 19'468 x Formbook, 12'206 x SnakeKeylogger)
ssdeep 12288:XBHxXqjO+2Km0w36aqjMb5gjFyiHAoENT6PbBax7UqU3db98ySZXtW8EfNLPZTrN:RHxXwO+A/3U4MyXcwx7qtb9HSBQtPBp
Threatray 5 similar samples on MalwareBazaar
TLSH T18915BEF911947124C72D52B1C1CA7047AEF4BD36AB118AE93FE8F8AF4DB63C03695096
TrID 27.3% (.SCR) Windows screen saver (13097/50/3)
22.0% (.EXE) Win64 Executable (generic) (10523/12/4)
13.7% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
10.5% (.EXE) Win16 NE executable (generic) (5038/12/1)
9.4% (.EXE) Win32 Executable (generic) (4505/5/1)
Reporter abuse_ch
Tags:exe Glupteba

Intelligence

File Origin
# of uploads :
2
# of downloads :
327
Origin country :
NL NL
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/461956/
Detection(s):
SecuriteInfo.com.Win32.TrojanX-gen.17253.13466.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Сreating synchronization primitives
Creating a process with a hidden window
Launching a process
Creating a file
DNS request
Sending a custom TCP request
Sending an HTTP GET request
Creating a process from a recently created file
Creating a file in the %temp% subdirectories
Searching for the window
Creating a file in the Program Files subdirectories
Moving a file to the Program Files subdirectory
Creating a file in the %AppData% subdirectories
Running batch commands
Creating a service
Using the Windows Management Instrumentation requests
Launching the process to interact with network services
Launching the default Windows debugger (dwwin.exe)
Blocking the User Account Control
Query of malicious DNS domain
Enabling autorun for a service
Launching a tool to kill processes
Adding exclusions to Windows Defender
Adding an exclusion to Microsoft Defender
Unauthorized injection to a system process
Enabling autorun by creating a file
Sending an HTTP GET request to an infection source
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
overlay packed packed
Link:
https://www.filescan.io/uploads/656b62cd2efa450749b4626a/reports/b7e2d28b-fa86-48df-a052-be172c5b7f3b/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/b7fc28f25a4aa0b3a8030419c4aa0f0004e15f67496c5c71fcebbe4b1b583f58
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.
Malware family:
Generic Malware
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/02e2801b-a83f-418d-9a20-599be1f2793d
Result
Threat name:
HTMLPhisher, Glupteba, Petite Virus, onl
Create hunting rule
Detection:
malicious
Classification:
rans.phis.troj.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1352127
Signature
.NET source code contains process injector
.NET source code contains very large array initializations
.NET source code references suspicious native API functions
Adds a directory exclusion to Windows Defender
Adds extensions / path to Windows Defender exclusion list (Registry)
Antivirus detection for URL or domain
Contain functionality to detect virtual machines
Creates HTML files with .exe extension (expired dropper behavior)
Detected unpacking (changes PE section rights)
Detected unpacking (overwrites its own PE header)
Disables UAC (registry)
Drops script or batch files to the startup folder
Found Tor onion address
Machine Learning detection for dropped file
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Queries sensitive disk information (via WMI, Win32_DiskDrive, often done to detect virtual machines)
Query firmware table information (likely to detect VMs)
Sigma detected: Drops script at startup location
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Writes many files with high entropy
Yara detected BlockedWebSite
Yara detected Generic Downloader
Yara detected Glupteba
Yara detected onlyLogger
Yara detected Petite Virus
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1352127 Sample: WrB1gNS1fN.exe Startdate: 02/12/2023 Architecture: WINDOWS Score: 100 84 Multi AV Scanner detection for domain / URL 2->84 86 Malicious sample detected (through community Yara rule) 2->86 88 Antivirus detection for URL or domain 2->88 90 14 other signatures 2->90 8 WrB1gNS1fN.exe 2 4 2->8         started        process3 signatures4 108 Adds extensions / path to Windows Defender exclusion list (Registry) 8->108 110 Adds a directory exclusion to Windows Defender 8->110 112 Disables UAC (registry) 8->112 11 CasPol.exe 15 502 8->11         started        16 powershell.exe 22 8->16         started        process5 dnsIp6 72 98.126.19.29 VPLSNETUS United States 11->72 74 91.92.241.91 THEZONEBG Bulgaria 11->74 76 16 other IPs or domains 11->76 54 C:\Users\...\zGE2GsH4ZHrw1D5YCj39TbZd.exe, PE32 11->54 dropped 56 C:\Users\...\xqNu8Fcwj1jYP8RlwcFxLY7e.exe, PE32 11->56 dropped 58 C:\Users\...\xIdCmswLYKynZ1cIBN5sTorh.exe, PE32 11->58 dropped 60 265 other malicious files 11->60 dropped 114 Drops script or batch files to the startup folder 11->114 116 Creates HTML files with .exe extension (expired dropper behavior) 11->116 118 Writes many files with high entropy 11->118 18 iFoIcB5RTqgd9QgZv2JddPAv.exe 11->18         started        21 GnAfGyuo6jErwN0dUi0B0VK3.exe 11->21         started        24 fcXStFHdC7c7VzmuTHCLbcmf.exe 11->24         started        28 30 other processes 11->28 26 conhost.exe 16->26         started        file7 signatures8 process9 dnsIp10 36 C:\Users\...\iFoIcB5RTqgd9QgZv2JddPAv.tmp, PE32 18->36 dropped 31 iFoIcB5RTqgd9QgZv2JddPAv.tmp 18->31         started        38 C:\Users\user\AppData\Local\Temp\...\Zip.dll, PE32 21->38 dropped 50 8 other malicious files 21->50 dropped 92 Queries sensitive disk information (via WMI, Win32_DiskDrive, often done to detect virtual machines) 21->92 94 Writes many files with high entropy 21->94 40 C:\Users\user\AppData\Local\Temp\...\Zip.dll, PE32 24->40 dropped 42 C:\Users\user\AppData\Local\...\Checker.dll, PE32 24->42 dropped 44 C:\Program Files (x86)\ClocX\ClocX.exe, PE32 24->44 dropped 96 Query firmware table information (likely to detect VMs) 24->96 98 Contain functionality to detect virtual machines 24->98 100 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 24->100 78 85.209.11.204 SYNGB Russian Federation 28->78 80 107.167.110.218 OPERASOFTWAREUS United States 28->80 82 9 other IPs or domains 28->82 46 C:\Users\user\AppData\Local\Temp\...\Zip.dll, PE32 28->46 dropped 48 C:\Users\user\AppData\Local\...\Checker.dll, PE32 28->48 dropped 52 41 other malicious files 28->52 dropped 102 Detected unpacking (changes PE section rights) 28->102 104 Detected unpacking (overwrites its own PE header) 28->104 106 Found Tor onion address 28->106 34 5bSsGgyMP3Ga6RlWuQ3XPrgR.exe 28->34         started        file11 signatures12 process13 file14 62 C:\Users\user\AppData\Local\...\_setup64.tmp, PE32+ 31->62 dropped 64 C:\Users\user\AppData\Local\...\_isdecmp.dll, PE32 31->64 dropped 66 C:\Users\user\AppData\Local\...\_iscrypt.dll, PE32 31->66 dropped 70 56 other files (44 malicious) 31->70 dropped 68 Opera_installer_2312021703031217988.dll, PE32 34->68 dropped
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/b7fc28f25a4aa0b3a8030419c4aa0f0004e15f67496c5c71fcebbe4b1b583f58
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b7fc28f25a4aa0b3a8030419c4aa0f0004e15f67496c5c71fcebbe4b1b583f58/
Threat name:
Win32.Trojan.Glupteba
Create hunting rule
Status:
Malicious
First seen:
2023-12-01 19:04:27 UTC
AV detection:
15 of 23 (65.22%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=w76cr4s2jkqlhkadaqm4jkqpaacocx3hjfwfy4p45o7ewg2yh5ma._file
Verdict:
malicious
Similar samples:
ab134dc417ab9e925dabf4f183d74379c5d7aa6b855a18f4e0f021c80bc95489
Glupteba
eff416f17b83327e6911308b2b9678f52fb4b4d20b99a96f43c2478e5dcc10f2
Glupteba
ffd6e1c96829784a3a19881b1e0e65ed562671a0315f65750fab10dab81477e1
Glupteba
Result
Malware family:
glupteba
Create hunting rule
Score:
  10/10
Tags:
family:glupteba discovery dropper evasion loader persistence rootkit spyware stealer trojan upx
Link:
https://tria.ge/reports/231202-vfpmdaeb95/
Behaviour
Creates scheduled task(s)
Kills process with taskkill
Modifies data under HKEY_USERS
Modifies registry class
Modifies system certificate store
Runs net.exe
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: LoadsDriver
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
System policy modification
Uses Task Scheduler COM API
NSIS installer
Enumerates physical storage devices
Program crash
Checks for VirtualBox DLLs, possible anti-VM trick
Drops file in Program Files directory
Drops file in Windows directory
Launches sc.exe
Drops file in System32 directory
Suspicious use of SetThreadContext
Accesses cryptocurrency files/wallets, possible credential harvesting
Adds Run key to start application
Checks installed software on the system
Checks whether UAC is enabled
Enumerates connected drives
Legitimate hosting services abused for malware hosting/C2
Manipulates WinMon driver.
Manipulates WinMonFS driver.
Checks computer location settings
Drops startup file
Executes dropped EXE
Loads dropped DLL
Reads local data of messenger clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
Registers COM server for autorun
UPX packed file
Unexpected DNS network traffic destination
Windows security modification
Downloads MZ/PE file
Drops file in Drivers directory
Modifies Windows Firewall
Possible attempt to disable PatchGuard
Modifies boot configuration data using bcdedit
Glupteba
Glupteba payload
UAC bypass
Windows security bypass
Unpacked files
SH256 hash:
b7fc28f25a4aa0b3a8030419c4aa0f0004e15f67496c5c71fcebbe4b1b583f58
MD5 hash:
668bbd74dce8327ef8c8f3db867bf0c5
SHA1 hash:
7f5dda62660a333031b76d96e227866ad16afc75
Link:
https://www.unpac.me/results/33bbcc5b-0c96-4c65-a406-465eec54d40e/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/b7fc28f25a4a/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.00
Link:
https://yomi.yoroi.company/submissions/b7fc28f25a4aa0b3a8030419c4aa0f0004e15f67496c5c71fcebbe4b1b583f58

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:cobalt_strike_tmp01925d3f
Create hunting rule
Author:The DFIR Report
Description:files - file ~tmp01925d3f.exe
Reference:https://thedfirreport.com
Rule name:PE_Digital_Certificate
Create hunting rule
Author:albertzsigovits
Rule name:pe_imphash
Create hunting rule
Rule name:PE_Potentially_Signed_Digital_Certificate
Create hunting rule
Author:albertzsigovits
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

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

Web download

Glupteba

Executable exe b7fc28f25a4aa0b3a8030419c4aa0f0004e15f67496c5c71fcebbe4b1b583f58

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/2735837/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/461956/

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