MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f13f245c6e53e8837e29c70a7dee1a9382b6502b20478f6ecc23990c5c09ca7c. 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: 20


Intelligence 20 IOCs YARA 20 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: f13f245c6e53e8837e29c70a7dee1a9382b6502b20478f6ecc23990c5c09ca7c
SHA3-384 hash: fc13ad720ef12d17d7d6ba36592e254139d7ca6c6af543735d14728fd7a5063c380af13a182a33d1e7aabff150c5c356
SHA1 hash: b3c03c2df846c2a46e56d6ccd1cad2f27a5a7f7f
MD5 hash: 7a7260a7c0f92d2c986500cc7b0e13fc
humanhash: timing-magnesium-sixteen-network
File name:MT103-374873-PDF.exe
Download: download sample
Signature MassLogger
Create hunting rule
File size:690'176 bytes
First seen:2025-10-06 02:43:42 UTC
Last seen:2025-10-06 07:10:36 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:M6F1wGIeDIED+UAmSJgkRz9NzCh/PolkNvvqi//f+33o5C46iPE8W5SIA+TrRD+:M6sZQIXZFJgkRZ1SolkHqqff5Y1h9d+
Threatray 720 similar samples on MalwareBazaar
TLSH T177E42294328CCE03C5A106F96475D1701BB9EE4E6A10CAD6CFE97CEB749E76083613DA
TrID 69.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.0% (.EXE) Win64 Executable (generic) (10522/11/4)
6.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.2% (.EXE) Win32 Executable (generic) (4504/4/1)
1.9% (.EXE) Win16/32 Executable Delphi generic (2072/23)
Magika pebin
Reporter threatcat_ch
Tags:exe MassLogger

Intelligence

File Origin
# of uploads :
2
# of downloads :
128
Origin country :
CH CH
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
MT103-374873-PDF.exe
Verdict:
Malicious activity
Analysis date:
2025-10-06 02:44:49 UTC
Tags:
evasion snake keylogger telegram stealer
Link:
https://app.any.run/tasks/c6264e19-1158-461b-ae9d-56abbc5e2fcc

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/30681/
Verdict:
Malicious
Score:
99.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=68e32d1091bc581176cc36e1
Tags:
spawn shell msil
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a process with a hidden window
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
Stealing user critical data
Adding an exclusion to Microsoft Defender
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
base64 bitmap krypt lolbin msbuild obfuscated packed packed reconnaissance regsvcs remcos rezer0 roboski schtasks stego telegram unsafe vbc vbnet
Link:
https://www.filescan.io/uploads/68e32d105a3bccf09eb90339/reports/93a81767-31f1-4bc1-8762-210133de471f/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/f13f245c6e53e8837e29c70a7dee1a9382b6502b20478f6ecc23990c5c09ca7c
Verdict:
Malicious
File Type:
exe x32
First seen:
2025-10-05T23:06:00Z UTC
Last seen:
2025-10-08T00:20:00Z UTC
Hits:
~1000
Link:
https://opentip.kaspersky.com/f13f245c6e53e8837e29c70a7dee1a9382b6502b20478f6ecc23990c5c09ca7c/results?tab=lookup
Malware family:
Snake Keylogger
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/53caf1f7-68b5-4fcb-ae55-34eb366c8eb3
Result
Threat name:
Snake Keylogger, VIP Keylogger
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1789463
Signature
.NET source code contains potential unpacker
.NET source code references suspicious native API functions
Adds a directory exclusion to Windows Defender
Contains functionality to capture screen (.Net source)
Contains functionality to log keystrokes (.Net Source)
Found malware configuration
Injects a PE file into a foreign processes
Joe Sandbox ML detected suspicious sample
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: Powershell Base64 Encoded MpPreference Cmdlet
Suricata IDS alerts for network traffic
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)
Yara detected AntiVM3
Yara detected Snake Keylogger
Yara detected Telegram RAT
Yara detected VIP Keylogger
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1789463 Sample: MT103-374873-PDF.exe Startdate: 06/10/2025 Architecture: WINDOWS Score: 100 24 reallyfreegeoip.org 2->24 26 api.telegram.org 2->26 28 2 other IPs or domains 2->28 36 Suricata IDS alerts for network traffic 2->36 38 Found malware configuration 2->38 40 Malicious sample detected (through community Yara rule) 2->40 46 12 other signatures 2->46 8 MT103-374873-PDF.exe 4 2->8         started        signatures3 42 Tries to detect the country of the analysis system (by using the IP) 24->42 44 Uses the Telegram API (likely for C&C communication) 26->44 process4 file5 22 C:\Users\user\...\MT103-374873-PDF.exe.log, ASCII 8->22 dropped 48 Adds a directory exclusion to Windows Defender 8->48 50 Injects a PE file into a foreign processes 8->50 12 MT103-374873-PDF.exe 15 2 8->12         started        16 powershell.exe 23 8->16         started        signatures6 process7 dnsIp8 30 checkip.dyndns.com 132.226.247.73, 49715, 49718, 49721 UTMEMUS United States 12->30 32 api.telegram.org 149.154.167.220, 443, 49734 TELEGRAMRU United Kingdom 12->32 34 reallyfreegeoip.org 104.21.67.152, 443, 49716, 49720 CLOUDFLARENETUS United States 12->34 52 Tries to steal Mail credentials (via file / registry access) 12->52 54 Tries to harvest and steal browser information (history, passwords, etc) 12->54 56 Loading BitLocker PowerShell Module 16->56 18 WmiPrvSE.exe 16->18         started        20 conhost.exe 16->20         started        signatures9 process10
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/f13f245c6e53e8837e29c70a7dee1a9382b6502b20478f6ecc23990c5c09ca7c
Verdict:
inconclusive
YARA:
10 match(es)
Tags:
.Net Executable Managed .NET PDB Path PE (Portable Executable) PE File Layout SOS: 0.22 Win 32 Exe x86
Link:
https://app.malva.re/file/7a7260a7c0f92d2c986500cc7b0e13fc
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/f13f245c6e53e8837e29c70a7dee1a9382b6502b20478f6ecc23990c5c09ca7c/
Verdict:
Malicious
Threat:
Family.SNAKE
Link:
https://tip.neiki.dev/file/f13f245c6e53e8837e29c70a7dee1a9382b6502b20478f6ecc23990c5c09ca7c
Threat name:
ByteCode-MSIL.Backdoor.FormBook
Create hunting rule
Status:
Malicious
First seen:
2025-10-06 02:00:16 UTC
File Type:
PE (.Net Exe)
Extracted files:
6
AV detection:
17 of 24 (70.83%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=6e7sixdokpuig7rjy4fh33q2soblmublebdy63wmeomqyxajzj6a._file
Verdict:
malicious
Label(s):
unc_loader_037
Create hunting rule
vipkeylogger
Create hunting rule
Similar samples:
510c29a71ef80977585b1e7668fedae30a6763287ff352f9a089089ed3330d80
MassLogger
6ef10a2b79a761a18c6351d623cc52ef989a6ab06b37fdb07f5fb473b1c05c2b
MassLogger
7832e657266ffed67b502312e3c3acafb5be68e0d9d96d849bdd6618ca7fc8c5
MassLogger
error
MassLogger
fa4036ae09207d287c5f19e218825ffa26b8a3e3f1a1b07435cab97efbac0feb
MassLogger
+ 710 additional samples on MalwareBazaar
Result
Malware family:
vipkeylogger
Create hunting rule
Score:
  10/10
Tags:
family:vipkeylogger collection discovery execution keylogger spyware stealer
Link:
https://tria.ge/reports/251006-c8ct6svtfy/
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
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
Looks up external IP address via web service
Checks computer location settings
Reads user/profile data of local email clients
Reads user/profile data of web browsers
Command and Scripting Interpreter: PowerShell
VIPKeylogger
Vipkeylogger family
Malware Config
C2 Extraction:
https://api.telegram.org/bot8099843793:AAGeYKMLti1IpyT9o6bz7OtgdXF9md25uXA/sendMessage?chat_id=6337180137
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/d636424e-66ce-42c3-8c4b-86d8d47963d6
Unpacked files
SH256 hash:
f13f245c6e53e8837e29c70a7dee1a9382b6502b20478f6ecc23990c5c09ca7c
MD5 hash:
7a7260a7c0f92d2c986500cc7b0e13fc
SHA1 hash:
b3c03c2df846c2a46e56d6ccd1cad2f27a5a7f7f
Link:
https://www.unpac.me/results/2b72051c-7c1c-4ba4-9ae3-f046d1b16e09/
SH256 hash:
868f9844cd6f0ea25b1115f509044f21f71a787afe9b706eb44c11f4942cb563
MD5 hash:
55786c675054c44592975b5fa7f643fb
SHA1 hash:
851f36ec99a212528ee1d5070af0907aaa05c483
Link:
https://www.unpac.me/results/2b72051c-7c1c-4ba4-9ae3-f046d1b16e09/
SH256 hash:
2c81ca279420b64a8da420b92c04eb56d801b883b25359c4cec764030d92c127
MD5 hash:
bd45080f306697447dfdacef6a4a078e
SHA1 hash:
9e7cae81d778304631598e01c43dddbc9cd9ea98
Detections:
win_404keylogger_g1
Create hunting rule
win_masslogger_w0
Create hunting rule
MAL_Envrial_Jan18_1
Create hunting rule
INDICATOR_SUSPICIOUS_Binary_References_Browsers
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_DotNetProcHook
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_TelegramChatBot
Create hunting rule
Link:
https://www.unpac.me/results/2b72051c-7c1c-4ba4-9ae3-f046d1b16e09/
Parent samples :
acfa9f60a37d778ce8591bf667d18b2ba1077755516165dbf976d63d3cff438f
56bef38fa3109c9aa68ab3a85062ce0ea062130e95216f3285664fdb3d17771e
e81510f9186eb2975dcce68a869c17b0274994ae90c06f716a4ffa561cc13809
fa4036ae09207d287c5f19e218825ffa26b8a3e3f1a1b07435cab97efbac0feb
f13f245c6e53e8837e29c70a7dee1a9382b6502b20478f6ecc23990c5c09ca7c
fb2b445ef7f400976f11b93dbe1c1cd655e9c1288fa125aa7ead3e3bed483118
SH256 hash:
6921cd7880a26fc47898633342e4a8fb00612c530e459413f1401549b722778a
MD5 hash:
d329bf81aab86db47282de42a43ac478
SHA1 hash:
baa866aacef19132d08b5a1eed7cee38a304bcd0
Detections:
SUSP_OBF_NET_ConfuserEx_Name_Pattern_Jan24
Create hunting rule
SUSP_OBF_NET_Reactor_Indicators_Jan24
Create hunting rule
Link:
https://www.unpac.me/results/2b72051c-7c1c-4ba4-9ae3-f046d1b16e09/
Malware family:
SnakeKeylogger
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/f13f245c6e53/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/f13f245c6e53e8837e29c70a7dee1a9382b6502b20478f6ecc23990c5c09ca7c

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:CP_AllMal_Detector
Create hunting rule
Author:DiegoAnalytics
Description:CrossPlatform All Malwares Detector: Detect PE, ELF, Mach-O, scripts, archives; overlay, obfuscation, encryption, spoofing, hiding, high entropy, network communication
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: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:telegram_bot_api
Create hunting rule
Author:rectifyq
Description:Detects file containing Telegram Bot API
Rule name:Windows_Trojan_SnakeKeylogger_af3faa65
Create hunting rule
Author:Elastic Security
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 f13f245c6e53e8837e29c70a7dee1a9382b6502b20478f6ecc23990c5c09ca7c

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/30681/

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