MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 7febab9593ffb7d1cd0a36f1b6029c0a7d3695664595d5693d787ae774c1b3d0. 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


Nitol


Vendor detections: 12


Intelligence 12 IOCs YARA 32 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 7febab9593ffb7d1cd0a36f1b6029c0a7d3695664595d5693d787ae774c1b3d0
SHA3-384 hash: f5dfc5e4d46ab608bbfad9a915df564c8aca9326e3fe8fe5699899614a962a00248855f0a3fa4c855d0d5f5839f2530c
SHA1 hash: fd7d8577d46391a8198f5ccd382cc177267ca7bb
MD5 hash: 2939bbd79eb890f2e55a8ba9e541672b
humanhash: nuts-carpet-steak-autumn
File name:letsvpn-latest.exe
Download: download sample
Signature Nitol
Create hunting rule
File size:28'164'160 bytes
First seen:2025-05-31 20:19:52 UTC
Last seen:2025-06-07 15:18:10 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 357b59ff56f808887438b8bd8ad0eaa6 (12 x Nitol)
ssdeep 786432:qpjeNYk0tHrJa9ghmSkOtfGWcSWJZzlAi:qUqk0tHrQahHFxGW1Wf6i
TLSH T13F57018D7AAC40E6D1BA853584B3460BD6F37845073087FF81969B6D1F37AE20C3AB65
TrID 44.4% (.EXE) Win64 Executable (generic) (10522/11/4)
21.3% (.EXE) Win16 NE executable (generic) (5038/12/1)
8.7% (.ICL) Windows Icons Library (generic) (2059/9)
8.5% (.EXE) OS/2 Executable (generic) (2029/13)
8.4% (.EXE) Generic Win/DOS Executable (2002/3)
Magika pebin
dhash icon fadadac2a2b8c4e4 (21 x ValleyRAT, 11 x Nitol, 5 x Gh0stRAT)
Reporter aachum
Tags:exe littleblackbeae-com Nitol


Avatar
iamaachum
https://www.kuailianvipn.com/download/letsvpn-latest.zip

C2: littleblackbeae.com

Intelligence

File Origin
# of uploads :
2
# of downloads :
482
Origin country :
ES ES
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
letsvpn-latest.exe
Verdict:
Malicious activity
Analysis date:
2025-05-31 20:24:59 UTC
Tags:
auto-reg antivm upx websocket
Link:
https://app.any.run/tasks/c1906a86-3fb0-4e70-9ae7-000621a9ae26

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/6592/
Verdict:
Malicious
Score:
97.4%
Link:
https://cyber-fortress.com/docs/result/index.php?id=683b698d668438e362e927ff
Tags:
emotet cobalt
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %temp% subdirectories
Сreating synchronization primitives
Searching for synchronization primitives
Creating a process from a recently created file
Creating a window
Searching for the window
Launching a process
Creating a process with a hidden window
Using the Windows Management Instrumentation requests
Creating a file
Creating a file in the Program Files subdirectories
Running batch commands
Enabling the 'hidden' option for recently created files
DNS request
Connection attempt
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Forced shutdown of a system process
Blocking the User Account Control
Enabling autorun by creating a file
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
adaptive-context base64 datper expired-cert explorer fingerprint fingerprint installer invalid-signature lolbin microsoft_visual_cc msiexec obfuscated overlay overlay packed regsvr32 runonce signed xor-pe zero
Link:
https://www.filescan.io/uploads/683b6494fd02ed5e0591d490/reports/5c9727ed-9d3b-4d38-a96f-bc6d0b4d5f6c/overview
Verdict:
Suspicious
Labled as:
Trojan.PowerShell
Link:
https://www.hybrid-analysis.com/sample/7febab9593ffb7d1cd0a36f1b6029c0a7d3695664595d5693d787ae774c1b3d0
Result
Threat name:
Nitol
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
80 / 100
Link:
https://www.joesandbox.com/analysis/1703079
Signature
Bypasses PowerShell execution policy
Changes security center settings (notifications, updates, antivirus, firewall)
Contains functionality to capture and log keystrokes
Contains functionality to inject code into remote processes
Contains functionality to modify Windows User Account Control (UAC) settings
Creates multiple autostart registry keys
Disable UAC(promptonsecuredesktop)
Disables UAC (registry)
Found suspicious powershell code related to unpacking or dynamic code loading
Joe Sandbox ML detected suspicious sample
Loading BitLocker PowerShell Module
Malicious sample detected (through community Yara rule)
Modifies the DNS server
Modifies the windows firewall
Multi AV Scanner detection for submitted file
Queries sensitive disk information (via WMI, Win32_DiskDrive, often done to detect virtual machines)
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
Queries sensitive service information (via WMI, Win32_LogicalDisk, often done to detect sandboxes)
Sample is not signed and drops a device driver
Sigma detected: Base64 Encoded PowerShell Command Detected
Sigma detected: PowerShell Base64 Encoded FromBase64String Cmdlet
Sigma detected: Suspect Svchost Activity
Suspicious powershell command line found
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses netsh to modify the Windows network and firewall settings
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected Nitol
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1703079 Sample: letsvpn-latest.exe Startdate: 31/05/2025 Architecture: WINDOWS Score: 80 126 yandex.com 2->126 128 www.yandex.com 2->128 130 12 other IPs or domains 2->130 148 Malicious sample detected (through community Yara rule) 2->148 150 Multi AV Scanner detection for submitted file 2->150 152 Yara detected Nitol 2->152 154 9 other signatures 2->154 10 letsvpn-latest.exe 4 2->10         started        13 svchost.exe 2->13         started        16 svchost.exe 2->16         started        18 11 other processes 2->18 signatures3 process4 file5 104 C:\Users\user\AppData\Local\...\lua5.1.dll, PE32+ 10->104 dropped 106 C:\Users\user\AppData\Local\...\irsetup.exe, PE32+ 10->106 dropped 20 irsetup.exe 16 10->20         started        156 Changes security center settings (notifications, updates, antivirus, firewall) 13->156 23 MpCmdRun.exe 13->23         started        158 Modifies the DNS server 16->158 25 drvinst.exe 18->25         started        27 drvinst.exe 18->27         started        29 conhost.exe 18->29         started        signatures6 process7 file8 88 C:\Users\user\AppData\Local\...\iusb3mon.exe, PE32 20->88 dropped 90 C:\Program Files\Your Product\LetsVPN.exe, PE32 20->90 dropped 92 C:\Users\user\AppData\...\vcruntime140.dll, PE32 20->92 dropped 102 4 other files (none is malicious) 20->102 dropped 31 LetsVPN.exe 20->31         started        35 iusb3mon.exe 20->35         started        38 7z.exe 20->38         started        42 7 other processes 20->42 40 conhost.exe 23->40         started        94 C:\Windows\System32\...\tap0901.sys (copy), PE32+ 25->94 dropped 96 C:\Windows\System32\...\SET8AB0.tmp, PE32+ 25->96 dropped 98 C:\Windows\System32\...\tap0901.sys (copy), PE32+ 27->98 dropped 100 C:\Windows\System32\drivers\SET90D8.tmp, PE32+ 27->100 dropped process9 dnsIp10 108 C:\Program Files (x86)\...\tap0901.sys, PE32+ 31->108 dropped 110 C:\Program Files (x86)\...\LetsPRO.exe, PE32 31->110 dropped 112 C:\Program Files (x86)\...\LetsPRO.exe.config, XML 31->112 dropped 118 219 other files (1 malicious) 31->118 dropped 134 Sample is not signed and drops a device driver 31->134 44 LetsPRO.exe 31->44         started        46 powershell.exe 31->46         started        49 tapinstall.exe 31->49         started        58 8 other processes 31->58 132 littleblackbeae.com 154.23.238.11, 25448, 49696, 49697 COGENT-174US United States 35->132 114 C:\Users\user\AppData\Local\...\4063812_t.xml, XML 35->114 dropped 136 Suspicious powershell command line found 35->136 138 Creates multiple autostart registry keys 35->138 140 Contains functionality to capture and log keystrokes 35->140 142 5 other signatures 35->142 52 cmd.exe 35->52         started        54 powershell.exe 35->54         started        60 3 other processes 35->60 116 C:\Users\user\AppData\...duWebContainer.dll, PE32 38->116 dropped 56 conhost.exe 38->56         started        62 7 other processes 42->62 file11 signatures12 process13 file14 64 LetsPRO.exe 44->64         started        160 Loading BitLocker PowerShell Module 46->160 68 conhost.exe 46->68         started        84 C:\Users\user\AppData\...\tap0901.sys (copy), PE32+ 49->84 dropped 86 C:\Users\user\AppData\Local\...\SET8735.tmp, PE32+ 49->86 dropped 70 conhost.exe 49->70         started        162 Uses schtasks.exe or at.exe to add and modify task schedules 52->162 164 Uses netsh to modify the Windows network and firewall settings 52->164 72 conhost.exe 52->72         started        74 schtasks.exe 52->74         started        166 Found suspicious powershell code related to unpacking or dynamic code loading 54->166 80 2 other processes 54->80 82 13 other processes 58->82 76 conhost.exe 60->76         started        78 schtasks.exe 60->78         started        signatures15 process16 dnsIp17 120 yandex.com 77.88.55.88, 443, 49710 YANDEXRU Russian Federation 64->120 122 23.98.101.155, 443, 49715, 49726 MICROSOFT-CORP-MSN-AS-BLOCKUS United States 64->122 124 12 other IPs or domains 64->124 144 Creates multiple autostart registry keys 64->144 146 Loading BitLocker PowerShell Module 64->146 signatures18
Score:
39%
Verdict:
Susipicious
File Type:
PE
Link:
https://malprob.io/report/7febab9593ffb7d1cd0a36f1b6029c0a7d3695664595d5693d787ae774c1b3d0
Gathering data
Threat name:
Win64.Trojan.Generic
Create hunting rule
Status:
Suspicious
First seen:
2025-05-31 20:20:43 UTC
File Type:
PE+ (Exe)
Extracted files:
937
AV detection:
10 of 24 (41.67%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=p7v2xfmt7635dtikg3y3mau4bj6tnflgiwk5k2j5pb5oo5gbwpia._file
Verdict:
malicious
Label(s):
r77
Create hunting rule
Similar samples:
error
Nitol
Result
Malware family:
n/a
Score:
  10/10
Tags:
defense_evasion discovery execution persistence privilege_escalation trojan upx
Link:
https://tria.ge/reports/250531-y4r9yshr4x/
Behaviour
Checks SCSI registry key(s)
Checks processor information in registry
Gathers network information
Modifies data under HKEY_USERS
Modifies system certificate store
Scheduled Task/Job: Scheduled Task
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
System policy modification
Enumerates physical storage devices
Event Triggered Execution: Netsh Helper DLL
System Location Discovery: System Language Discovery
Drops file in Program Files directory
Drops file in Windows directory
Drops file in System32 directory
Suspicious use of SetThreadContext
UPX packed file
Adds Run key to start application
Checks installed software on the system
Checks whether UAC is enabled
Command and Scripting Interpreter: PowerShell
Indicator Removal: File Deletion
Network Service Discovery
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Drops file in Drivers directory
Modifies Windows Firewall
UAC bypass
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/2b4f2d56-70ef-46f9-9763-6dc4881a2c3f
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/7febab9593ff/report/overview.html
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
Create hunting rule
Author:phoul (@phoul)
Description:Look for Blowfish constants
Rule name:cobalt_strike_tmp01925d3f
Create hunting rule
Author:The DFIR Report
Description:files - file ~tmp01925d3f.exe
Reference:https://thedfirreport.com
Rule name:command_and_control
Create hunting rule
Author:CD_R0M_
Description:This rule searches for common strings found by malware using C2. Based on a sample used by a Ransomware group
Rule name:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerCheck__QueryInfo
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerCheck__RemoteAPI
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerHiding__Thread
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:dgaaga
Create hunting rule
Author:Harshit
Description:Detects suspicious PowerShell or registry activity
Rule name:golang_bin_JCorn_CSC846
Create hunting rule
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:grakate_stealer_nov_2021
Create hunting rule
Rule name:HeavensGate
Create hunting rule
Author:kevoreilly
Description:Heaven's Gate: Switch from 32-bit to 64-mode
Rule name:INDICATOR_SUSPICIOUS_EXE_ClearMyTracksByProcess
Create hunting rule
Author:ditekSHen
Description:Detects executables calling ClearMyTracksByProcess
Rule name:INDICATOR_SUSPICIOUS_EXE_RegKeyComb_IExecuteCommandCOM
Create hunting rule
Author:ditekSHen
Description:Detects executables embedding command execution via IExecuteCommand COM object
Rule name:INDICATOR_SUSPICIOUS_References_SecTools
Create hunting rule
Author:ditekSHen
Description:Detects executables referencing many IR and analysis tools
Rule name:malware_shellcode_hash
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect shellcode api hash value
Rule name:MD5_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:meth_peb_parsing
Create hunting rule
Author:Willi Ballenthin
Rule name:meth_stackstrings
Create hunting rule
Author:Willi Ballenthin
Rule name:pe_detect_tls_callbacks
Create hunting rule
Rule name:PE_Digital_Certificate
Create hunting rule
Author:albertzsigovits
Rule name:RANSOMWARE
Create hunting rule
Author:ToroGuitar
Rule name:RIPEMD160_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SHA1_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA1 constants
Rule name:SUSP_XORed_MSDOS_Stub_Message
Create hunting rule
Author:Florian Roth
Description:Detects suspicious XORed MSDOS stub message
Reference:https://yara.readthedocs.io/en/latest/writingrules.html#xor-strings
Rule name:Sus_Obf_Enc_Spoof_Hide_PE
Create hunting rule
Author:XiAnzheng
Description:Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)
Rule name:ThreadControl__Context
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:UPXProtectorv10x2
Create hunting rule
Author:malware-lu
Rule name:UPXV200V290MarkusOberhumerLaszloMolnarJohnReiser
Create hunting rule
Author:malware-lu
Rule name:upx_largefile
Create hunting rule
Author:k3nr9
Rule name:vmdetect
Create hunting rule
Author:nex
Description:Possibly employs anti-virtualization techniques
Rule name:without_attachments
Create hunting rule
Author:Antonio Sanchez <asanchez@hispasec.com>
Description:Rule to detect the no presence of any attachment
Reference:http://laboratorio.blogs.hispasec.com/
Rule name:with_urls
Create hunting rule
Author:Antonio Sanchez <asanchez@hispasec.com>
Description:Rule to detect the presence of an or several urls
Reference:http://laboratorio.blogs.hispasec.com/

File information

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

Web download

Nitol

Executable exe 7febab9593ffb7d1cd0a36f1b6029c0a7d3695664595d5693d787ae774c1b3d0

(this sample)

  
Link
https://tria.ge/250531-x9xwysgq3z/behavioral1
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/6592/

Comments