MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 633b7028864efa906f8c371beebc9eb66757e514bcb618bb1464c8e4a9c42d79. 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


MassLogger


Vendor detections: 18


Intelligence 18 IOCs YARA 25 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 633b7028864efa906f8c371beebc9eb66757e514bcb618bb1464c8e4a9c42d79
SHA3-384 hash: 5ee1ebc920232eead5773da3a5e5fb4c87ff525261116d1a05b99feadd07339bfb2b43295b9b47bf1ce88ba7a7d26acf
SHA1 hash: 9f266df7ef74f0f1df6c76664dcb13056d7763a3
MD5 hash: 31c30ad5e5197c7d6b4a2a597752337a
humanhash: ohio-quebec-item-ink
File name:Signed_RFQRFP.xls.exe
Download: download sample
Signature MassLogger
Create hunting rule
File size:1'038'336 bytes
First seen:2026-05-07 17:57:50 UTC
Last seen:2026-06-08 09:21:58 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (49'125 x AgentTesla, 20'138 x Formbook, 12'362 x SnakeKeylogger)
ssdeep 24576:eKTwnNrwQNSTSaHV2Zkto/WcsfEMrNGyec3qAhnLL5DR4RKS:evE5TSaUZaoBsftwc37hnX5DR
Threatray 2'877 similar samples on MalwareBazaar
TLSH T18225124821A9EA07D8A60BF15CB0C2B467B52E9EEA35C61ACFCDBDEF7474B100215357
TrID 72.4% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
6.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
6.4% (.EXE) Win64 Executable (generic) (6522/11/2)
4.4% (.EXE) Win32 Executable (generic) (4504/4/1)
2.0% (.EXE) Win16/32 Executable Delphi generic (2072/23)
Magika pebin
dhash icon 68e48c98b6b6b4c8 (5 x AgentTesla, 2 x a310Logger, 2 x Expiro)
Reporter threatcat_ch
Tags:exe MassLogger

Intelligence

File Origin
# of uploads :
2
# of downloads :
151
Origin country :
CH CH
Vendor Threat Intelligence
Malware configuration found for:
RoboSki
Details
Link:
https://research.acce.ciphertechsolutions.com/results/4ffe9914-0cc0-4687-bfbe-619fb014aac3/
Malware family:
n/a
ID:
1
File name:
633b7028864efa906f8c371beebc9eb66757e514bcb618bb1464c8e4a9c42d79
Verdict:
Malicious activity
Analysis date:
2026-05-07 08:39:10 UTC
Tags:
evasion snake keylogger telegram spyware stealer
Link:
https://app.any.run/tasks/7ec77264-dc4c-4caf-889f-cceeae81937a

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
VIPKeyLogger
Create hunting rule
Link:
https://www.capesandbox.com/analysis/64811/
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.3232.24638.32767.UNOFFICIAL
Create hunting rule

Gathering data
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a process with a hidden window
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Creating a file in the %temp% directory
Launching a process
Creating a file
Сreating synchronization primitives
DNS request
Connection attempt
Sending an HTTP GET request
Sending a custom TCP request
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Adding an exclusion to Microsoft Defender
Unauthorized injection to a system process
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
base64 masquerade packed vbnet
Link:
https://www.filescan.io/uploads/69fcd2c186e92bda702338ae/reports/2595ccb0-79c0-4e14-8f1e-503a9c38090b/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/633b7028864efa906f8c371beebc9eb66757e514bcb618bb1464c8e4a9c42d79
Verdict:
Malicious
File Type:
exe x32
First seen:
2026-05-07T02:30:00Z UTC
Last seen:
2026-05-09T10:19:00Z UTC
Hits:
~1000
Detections:
Trojan.MSIL.Dnoper.sb PDM:Trojan.Win32.Generic Trojan.MSIL.Inject.sb Trojan.MSIL.Crypt.sb Trojan-PSW.Win32.Stelega.sb HEUR:Trojan-Spy.MSIL.Agent.sb HEUR:Backdoor.MSIL.XWorm.gen Trojan.Win32.Agent.sb Trojan-PSW.Win32.Stealer.sb Trojan-Dropper.Win32.Injector.sb Backdoor.Win32.Androm.sb
Link:
https://opentip.kaspersky.com/633b7028864efa906f8c371beebc9eb66757e514bcb618bb1464c8e4a9c42d79/results?tab=lookup
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/2d4af432-45d8-4261-93fc-bc5d881fbd85
Result
Threat name:
Snake Keylogger, VIP Keylogger
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1909868
Signature
Adds a directory exclusion to Windows Defender
Allocates memory in foreign processes
Bypasses PowerShell execution policy
Creates an autostart registry key pointing to binary in C:\Windows
Creates autostart registry keys with suspicious values (likely registry only malware)
Found malware configuration
Injects a PE file into a foreign processes
Loading BitLocker PowerShell Module
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sample uses string decryption to hide its real strings
Sigma detected: New RUN Key Pointing to Suspicious Folder
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: Script Interpreter Execution From Suspicious Folder
Sigma detected: Suspicious Script Execution From Temp Folder
Suricata IDS alerts for network traffic
Suspicious powershell command line found
Tries to detect the country of the analysis system (by using the IP)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Uses the Telegram API (likely for C&C communication)
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected Snake Keylogger
Yara detected Telegram RAT
Yara detected UAC Bypass using CMSTP
Yara detected VIP Keylogger
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1909868 Sample: 1vnQBa1PJJ Startdate: 07/05/2026 Architecture: WINDOWS Score: 100 49 reallyfreegeoip.org 2->49 51 api.telegram.org 2->51 53 2 other IPs or domains 2->53 75 Suricata IDS alerts for network traffic 2->75 77 Found malware configuration 2->77 79 Malicious sample detected (through community Yara rule) 2->79 85 13 other signatures 2->85 8 1vnQBa1PJJ.exe 1 7 2->8         started        12 powershell.exe 19 2->12         started        14 powershell.exe 2->14         started        signatures3 81 Tries to detect the country of the analysis system (by using the IP) 49->81 83 Uses the Telegram API (likely for C&C communication) 51->83 process4 file5 41 C:\Users\user\AppData\Roaming\ZrABbZQz.exe, PE32 8->41 dropped 43 C:\Users\...\ZrABbZQz.exe:Zone.Identifier, ASCII 8->43 dropped 45 C:\Users\user\AppData\...\q2bfu2q3t52.ps1, ASCII 8->45 dropped 47 C:\Users\user\AppData\...\1vnQBa1PJJ.exe.log, ASCII 8->47 dropped 87 Creates autostart registry keys with suspicious values (likely registry only malware) 8->87 89 Creates an autostart registry key pointing to binary in C:\Windows 8->89 91 Writes to foreign memory regions 8->91 93 3 other signatures 8->93 16 powershell.exe 23 8->16         started        19 RegSvcs.exe 15 2 8->19         started        22 ZrABbZQz.exe 12->22         started        24 conhost.exe 12->24         started        26 ZrABbZQz.exe 14->26         started        28 conhost.exe 14->28         started        signatures6 process7 dnsIp8 61 Loading BitLocker PowerShell Module 16->61 30 WmiPrvSE.exe 16->30         started        32 conhost.exe 16->32         started        55 checkip.dyndns.com 132.226.247.73, 49715, 49717, 49723 UTMEMUS United States 19->55 57 api.telegram.org 149.154.166.110, 443, 49739, 49762 TELEGRAMRU United Kingdom 19->57 59 reallyfreegeoip.org 172.67.177.134, 443, 49716, 49721 CLOUDFLARENETUS United States 19->59 63 Tries to steal Mail credentials (via file / registry access) 19->63 65 Writes to foreign memory regions 22->65 67 Allocates memory in foreign processes 22->67 69 Injects a PE file into a foreign processes 22->69 34 RegSvcs.exe 22->34         started        37 RegSvcs.exe 22->37         started        39 RegSvcs.exe 26->39         started        signatures9 process10 signatures11 71 Tries to steal Mail credentials (via file / registry access) 39->71 73 Tries to harvest and steal browser information (history, passwords, etc) 39->73
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/633b7028864efa906f8c371beebc9eb66757e514bcb618bb1464c8e4a9c42d79
Verdict:
inconclusive
YARA:
10 match(es)
Tags:
.Net Executable Managed .NET PE (Portable Executable) PE File Layout SOS: 0.35 Win 32 Exe x86
Link:
https://app.malva.re/file/31c30ad5e5197c7d6b4a2a597752337a
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/633b7028864efa906f8c371beebc9eb66757e514bcb618bb1464c8e4a9c42d79/
Verdict:
Malicious
Threat:
Family.SNAKE
Link:
https://tip.neiki.dev/file/633b7028864efa906f8c371beebc9eb66757e514bcb618bb1464c8e4a9c42d79
Threat name:
ByteCode-MSIL.Trojan.RedlineStealer
Create hunting rule
Status:
Malicious
First seen:
2026-05-07 10:07:52 UTC
File Type:
PE (.Net Exe)
Extracted files:
7
AV detection:
17 of 24 (70.83%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=mm5xakegj35ja34mg4n65pe6wztvpziuxs3broyumteojkoefv4q._file
Verdict:
malicious
Label(s):
vipkeylogger
Create hunting rule
Similar samples:
09b8a80183a41a92c60fbacf9ee319291e37ae6d4ce0521b23b236b46e095956
MassLogger
1d2a2b5e545def1978b91058fe027033b646d1bc1876b219b0963a073141e867
MassLogger
7db983607b14ea67a3d656542e033ba69fdbd3a4bcb7bea0251205d219ab71bd
MassLogger
8ece82ad36ddad1e13a955098ea9629364950ed21a1155d7be4921208e62eb0c
MassLogger
99f8a75fb301a60588d16fc659fda59f2c48cddfd2d3a730cf9a97d98b1b6023
MassLogger
d6255b39e2be431e6226c8414b75721a16c114960f8a87acc06ea9fa7563006f
MassLogger
error
MassLogger
faa236eaf11ddab3abe7dcc8c69613d89edf60da47060bf6dc881fa9e118cd9e
MassLogger
+ 2'867 additional samples on MalwareBazaar
Result
Malware family:
vipkeylogger
Create hunting rule
Score:
  10/10
Tags:
family:vipkeylogger collection discovery execution keylogger persistence stealer
Link:
https://tria.ge/reports/260507-wkcztabz7q/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
outlook_office_path
outlook_win_path
Browser Information Discovery
Enumerates physical storage devices
Program crash
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
Adds Run key to start application
Looks up external IP address via web service
Checks computer location settings
Executes dropped EXE
Command and Scripting Interpreter: PowerShell
Family: VIPKeylogger
Malware Config
C2 Extraction:
https://api.telegram.org/bot8071660627:AAFb60NRq4wg_o7DhXUr5cIhpwAsiUS1IlI/sendMessage?chat_id=5630866666
Unpacked files
SH256 hash:
633b7028864efa906f8c371beebc9eb66757e514bcb618bb1464c8e4a9c42d79
MD5 hash:
31c30ad5e5197c7d6b4a2a597752337a
SHA1 hash:
9f266df7ef74f0f1df6c76664dcb13056d7763a3
Link:
https://www.unpac.me/results/fb9fd4e4-f955-4e6f-9618-e810c67c81e1/
SH256 hash:
caebf12cf2229d84b4fabdf412326d127d2d9fef20e6ec54198ace170e5110e7
MD5 hash:
0d7d14bd5d98367a66ae34fdaefefab7
SHA1 hash:
c6e7e12d4f2ff0a7faaa92d677b88633bcd8ebcb
Link:
https://www.unpac.me/results/fb9fd4e4-f955-4e6f-9618-e810c67c81e1/
SH256 hash:
7c613c9d51de76787322ce46c04db772abb37104b86e2e80779ed0f1bf307c23
MD5 hash:
2e5d6596667740f970291c2804d7d09e
SHA1 hash:
cdb782837910000b22db89564c5961ba5c027b6b
Detections:
win_404keylogger_g1
Create hunting rule
win_masslogger_w0
Create hunting rule
triage_snakekeylogger_infostealer
Create hunting rule
Link:
https://www.unpac.me/results/fb9fd4e4-f955-4e6f-9618-e810c67c81e1/
Parent samples :
399c51d6ed22fb0c649d5a148aaef55eee07060251dde6ed045c188d2f4c8b4a
ce49754955c7bd3656beea94b2197119ddb00ba1aa3420d05b98c744006c40c9
633b7028864efa906f8c371beebc9eb66757e514bcb618bb1464c8e4a9c42d79
75912c3a8189e59f168c8bee08b1f7a157a6967ed185d610b5d154f4a61fe9a8
SH256 hash:
31ff5418f57b23df109212e8a9979ae0a5cce820b9c49b16062fad0ce9abd312
MD5 hash:
c99175a64e5332c881de0a1b794a4824
SHA1 hash:
f1c17a3366ef6a5f403c474c9d7cc199585143ed
Link:
https://www.unpac.me/results/fb9fd4e4-f955-4e6f-9618-e810c67c81e1/
Malware family:
SnakeKeylogger
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/633b7028864e/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/633b7028864efa906f8c371beebc9eb66757e514bcb618bb1464c8e4a9c42d79

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:crime_snake_keylogger
Create hunting rule
Author:Rony (r0ny_123)
Description:Detects Snake keylogger payload
Rule name:DetectEncryptedVariants
Create hunting rule
Author:Zinyth
Description:Detects 'encrypted' in ASCII, Unicode, base64, or hex-encoded
Rule name:FreddyBearDropper
Create hunting rule
Author:Dwarozh Hoshiar
Description:Freddy Bear Dropper is dropping a malware through base63 encoded powershell scrip.
Rule name:INDICATOR_SUSPICIOUS_Binary_References_Browsers
Create hunting rule
Author:ditekSHen
Description:Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers.
Rule name:INDICATOR_SUSPICIOUS_EXE_DotNetProcHook
Create hunting rule
Author:ditekSHen
Description:Detects executables with potential process hoocking
Rule name:INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
Create hunting rule
Author:ditekSHen
Description:Detects executables referencing many email and collaboration clients. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_EXE_TelegramChatBot
Create hunting rule
Author:ditekSHen
Description:Detects executables using Telegram Chat Bot
Rule name:MAL_Envrial_Jan18_1
Create hunting rule
Author:Florian Roth (Nextron Systems)
Description:Detects Encrial credential stealer malware
Reference:https://twitter.com/malwrhunterteam/status/953313514629853184
Rule name:MAL_Envrial_Jan18_1_RID2D8C
Create hunting rule
Author:Florian Roth
Description:Detects Encrial credential stealer malware
Reference:https://twitter.com/malwrhunterteam/status/953313514629853184
Rule name:masslogger_gcch
Create hunting rule
Author:govcert_ch
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:NETexecutableMicrosoft
Create hunting rule
Author:malware-lu
Rule name:pe_imphash
Create hunting rule
Rule name:RANSOMWARE
Create hunting rule
Author:ToroGuitar
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:Sus_CMD_Powershell_Usage
Create hunting rule
Author:XiAnzheng
Description:May Contain(Obfuscated or no) Powershell or CMD Command that can be abused by threat actor(can create FP)
Rule name:telebot_framework
Create hunting rule
Author:vietdx.mb
Rule name:TelegramAPIMalware_PowerShell_EXE
Create hunting rule
Author:@polygonben
Description:Hunting for pwsh malware using Telegram for C2
Rule name:telegram_bot_api
Create hunting rule
Author:rectifyq
Description:Detects file containing Telegram Bot API
Rule name:VECT_Ransomware
Create hunting rule
Author:Mustafa Bakhit
Description:Detects activity associated with VECT ransomware. This includes registry modifications and deletions, execution of system and defense-evasion commands, suspicious API usage, mutex creation, file and memory manipulation, ransomware note generation, anti-debugging and anti-analysis techniques, and embedded cryptographic constants (SHA256) characteristic of this malware family. Designed for threat intelligence and malware detection environments.
Rule name:VIPKeyLogger
Create hunting rule
Author:kevoreilly
Description:Detects VIPKeyLogger Keylogger
Rule name:Windows_Trojan_SnakeKeylogger_af3faa65
Create hunting rule
Author:Elastic Security
Rule name:win_dotnet_vb_stealer_rat
Create hunting rule
Author:Arrbat
Description:Detects .NET/VB executables with stealer/RAT capabilities (sockets, HTTP, processes, registry, etc).
Rule name:win_masslogger_w0
Create hunting rule
Author:govcert_ch

File information

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

Malspam

MassLogger

Executable exe 633b7028864efa906f8c371beebc9eb66757e514bcb618bb1464c8e4a9c42d79

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/64811/

Comments