MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f1ca533620933da6d4e119a4bc7b44e233617007cd4ee0239591d0fd0946e718. 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: 16


Intelligence 16 IOCs YARA 22 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: f1ca533620933da6d4e119a4bc7b44e233617007cd4ee0239591d0fd0946e718
SHA3-384 hash: 3c6f5c886c6ba026e151fcfc66f03d510de9d027bb01b64ad8443245d75c6b2f9de88635f0cda0d949fdde8a6bf543bf
SHA1 hash: c71449356ad109f44abde01e77b72815de9feacf
MD5 hash: 2680dd7239138d434e72e4e260792c00
humanhash: lamp-utah-ink-network
File name:025, Eugia, Offer,PDF.exe
Download: download sample
Signature MassLogger
Create hunting rule
File size:904'192 bytes
First seen:2026-07-23 16:35:33 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (49'122 x AgentTesla, 20'134 x Formbook, 12'360 x SnakeKeylogger)
ssdeep 24576:a7p509c/miuypOzP7NgL6j5nOU9Uwi0Icjbm8p:SpEByUzPB46FnOIUwicjD
TLSH T11715F1542252EA41E0D6C7F3B860E33132B90DDF39E2D3929FE56FF738593856994242
TrID 73.9% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
6.6% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
6.6% (.EXE) Win64 Executable (generic) (6522/11/2)
4.5% (.EXE) Win32 Executable (generic) (4504/4/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
Magika pebin
Reporter threatcat_ch
Tags:exe MassLogger

Intelligence

File Origin
# of uploads :
1
# of downloads :
217
Origin country :
CH CH
Vendor Threat Intelligence
Malware configuration found for:
RoboSki
Details
Link:
https://research.acce.ciphertechsolutions.com/results/cf5920ca-7beb-492a-9b91-c1ef202f54e4/
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/75821/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Launching a service
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
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Сreating synchronization primitives
DNS request
Connection attempt
Sending an HTTP GET request
Sending a custom TCP request
Reading critical registry keys
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Stealing user critical data
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/6a6242ddc9238ec4edf9161c/reports/bb8737db-3cb6-4304-8a37-c654fecd8086/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/f1ca533620933da6d4e119a4bc7b44e233617007cd4ee0239591d0fd0946e718
Verdict:
Malicious
File Type:
exe x32
First seen:
2026-07-23T08:56:00Z UTC
Last seen:
2026-07-23T13:32:00Z UTC
Hits:
~1000
Link:
https://opentip.kaspersky.com/f1ca533620933da6d4e119a4bc7b44e233617007cd4ee0239591d0fd0946e718/results?tab=lookup
Malware family:
Snake Keylogger
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/bcfe1393-5309-4953-b40a-533267693227
Result
Threat name:
MSIL Logger, MassLogger RAT
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1947231
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
.NET source code references suspicious native API functions
AI detected malicious Powershell script
Bypasses PowerShell execution policy
Contains functionality to capture screen (.Net source)
Contains functionality to log keystrokes (.Net Source)
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
Installs a global keyboard hook
Joe Sandbox ML detected suspicious sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: New RUN Key Pointing to Suspicious Folder
Sigma detected: Script Interpreter Execution From Suspicious Folder
Sigma detected: Suspicious Script Execution From Temp Folder
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)
Yara detected AntiVM3
Yara detected MassLogger RAT
Yara detected MSIL Logger
Yara detected Powershell decode and execute
Yara detected Telegram RAT
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1947231 Sample: 025, Eugia, Offer,PDF.exe Startdate: 23/07/2026 Architecture: WINDOWS Score: 100 53 reallyfreegeoip.org 2->53 55 server39.web-hosting.com 2->55 57 2 other IPs or domains 2->57 73 Found malware configuration 2->73 75 Malicious sample detected (through community Yara rule) 2->75 77 Multi AV Scanner detection for submitted file 2->77 81 18 other signatures 2->81 8 025, Eugia, Offer,PDF.exe 1 6 2->8         started        12 powershell.exe 2->12         started        14 powershell.exe 19 2->14         started        signatures3 79 Tries to detect the country of the analysis system (by using the IP) 53->79 process4 file5 39 C:\Users\user\AppData\RoamingwcauTvUo.exe, PE32 8->39 dropped 41 C:\Users\...wcauTvUo.exe:Zone.Identifier, ASCII 8->41 dropped 43 C:\Users\user\AppData\...\e1u3yhl0xpn.ps1, ASCII 8->43 dropped 45 C:\Users\...\025, Eugia, Offer,PDF.exe.log, ASCII 8->45 dropped 83 Creates autostart registry keys with suspicious values (likely registry only malware) 8->83 85 Creates an autostart registry key pointing to binary in C:\Windows 8->85 16 025, Eugia, Offer,PDF.exe 15 22 8->16         started        20 025, Eugia, Offer,PDF.exe 8->20         started        22 025, Eugia, Offer,PDF.exe 8->22         started        24 025, Eugia, Offer,PDF.exe 8->24         started        26 EwcauTvUo.exe 12->26         started        28 conhost.exe 12->28         started        30 EwcauTvUo.exe 3 14->30         started        32 conhost.exe 14->32         started        signatures6 process7 dnsIp8 47 server39.web-hosting.com 198.187.29.124, 49768, 49776, 49781 NAMECHEAP-NET-NamecheapIncUS United States 16->47 49 checkip.dyndns.com 132.226.8.169, 49761, 49771, 49772 ORACLE-BMC-31898-OracleCorporationUS Japan 16->49 51 reallyfreegeoip.org 104.21.67.152, 443, 49762, 49774 CLOUDFLARENET-CloudflareIncUS Canada 16->51 59 Tries to steal Mail credentials (via file / registry access) 16->59 61 Installs a global keyboard hook 16->61 63 Injects a PE file into a foreign processes 26->63 34 EwcauTvUo.exe 26->34         started        65 Multi AV Scanner detection for dropped file 30->65 37 EwcauTvUo.exe 14 19 30->37         started        signatures9 process10 signatures11 67 Tries to steal Mail credentials (via file / registry access) 34->67 69 Tries to harvest and steal browser information (history, passwords, etc) 34->69 71 Installs a global keyboard hook 34->71
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/f1ca533620933da6d4e119a4bc7b44e233617007cd4ee0239591d0fd0946e718
Verdict:
inconclusive
YARA:
5 match(es)
Tags:
.Net Executable Managed .NET PE (Portable Executable) PE File Layout SOS: 0.51 Win 32 Exe x86
Link:
https://app.malva.re/file/2680dd7239138d434e72e4e260792c00
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/f1ca533620933da6d4e119a4bc7b44e233617007cd4ee0239591d0fd0946e718/
Threat name:
Win32.Spyware.Negasteal
Create hunting rule
Status:
Suspicious
First seen:
2026-07-23 15:02:59 UTC
File Type:
PE (.Net Exe)
Extracted files:
4
AV detection:
17 of 36 (47.22%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=6hffgnrasm62nvhbdgsly62e4izwc4ahzvhoai4vship2ckg44ma._file
Verdict:
malicious
Label(s):
NovaStealer
Create hunting rule
Link:
https://reports.threatray.com/bfa81089-f76f-49ab-bcb6-25e23cca63a8
Similar samples:
55011c7e77605612e1386d23d2bb03623326bd041c077e7913d02b16f9dd854a
MassLogger
640c7c6ea97dbecc0438cd6d77d4a599e459929f626e2f0b2b4a66dfe1f99b84
MassLogger
baa4644728c7e2bb52305701569700be80e76adf9a50bdca2faa54eed64cfc9f
MassLogger
e891403f8727f8c2c54ae409611a0e5e1d3ff015d3172156b761a908bb40b177
MassLogger
f1ca533620933da6d4e119a4bc7b44e233617007cd4ee0239591d0fd0946e718
MassLogger
Result
Malware family:
masslogger
Create hunting rule
Score:
  10/10
Tags:
family:masslogger collection discovery execution persistence spyware stealer
Link:
https://tria.ge/reports/260723-t3139afr8v/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
outlook_office_path
outlook_win_path
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
Executes dropped EXE
Reads user/profile data of local email clients
Reads user/profile data of web browsers
Command and Scripting Interpreter: PowerShell
Family: MassLogger
Unpacked files
SH256 hash:
f1ca533620933da6d4e119a4bc7b44e233617007cd4ee0239591d0fd0946e718
MD5 hash:
2680dd7239138d434e72e4e260792c00
SHA1 hash:
c71449356ad109f44abde01e77b72815de9feacf
Link:
https://www.unpac.me/results/3778241d-fce5-4277-9c0d-e6e7ce143030/
SH256 hash:
717ac2b4b1eff5eb46e33fac1cd9840f6a7eac1501d10d9b856031037171c318
MD5 hash:
777f4fcaa091184dafa81fda277bdf4c
SHA1 hash:
0c171b478edc0a2938e0bcc96c24b2f6e8124af5
Link:
https://www.unpac.me/results/3778241d-fce5-4277-9c0d-e6e7ce143030/
SH256 hash:
da22bf6bc5dff823881d0d3fe25003149f68587d509cdf6c56837438be7db8fa
MD5 hash:
56ddaae25a49b909125b5e923e6c1744
SHA1 hash:
87d2a50ef4bb5ef90142d6095925e7765afee557
Detections:
win_masslogger_w0
Create hunting rule
win_404keylogger_g1
Create hunting rule
triage_snakekeylogger_infostealer
Create hunting rule
Link:
https://www.unpac.me/results/3778241d-fce5-4277-9c0d-e6e7ce143030/
SH256 hash:
2c377e676847e13c5862f1e81a226a126a02b3fe97585132a76df6f21fab1fed
MD5 hash:
aaaeb9bd168d6833edae3231bee7975d
SHA1 hash:
b2effc5832b89b6e443979002e7c748db43c2a65
Link:
https://www.unpac.me/results/3778241d-fce5-4277-9c0d-e6e7ce143030/
Malware family:
MassLogger
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/f1ca53362093/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/f1ca533620933da6d4e119a4bc7b44e233617007cd4ee0239591d0fd0946e718

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_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: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 f1ca533620933da6d4e119a4bc7b44e233617007cd4ee0239591d0fd0946e718

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/75821/

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