MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 270d25fa4c48a659c108da5452b8b90ea07f0473ee4dcaeb66889eb0e2443c99. 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 18 File information Comments

SHA256 hash: 270d25fa4c48a659c108da5452b8b90ea07f0473ee4dcaeb66889eb0e2443c99
SHA3-384 hash: 5636158f55950e2342b86a2d3b72813133a89f65d72e499105adeba7d4d00d79671cd992c2faba67fa53d72303fd70ed
SHA1 hash: edc58a709f451f598e2189baa579e40b02437c12
MD5 hash: 00e8957d98a3a103e315a16751bbab0f
humanhash: autumn-bravo-colorado-seventeen
File name:270d25fa4c48a659c108da5452b8b90ea07f0473ee4dcaeb66889eb0e2443c99
Download: download sample
Signature MassLogger
File size:592'904 bytes
First seen:2025-03-07 14:05:42 UTC
Last seen:2025-03-07 14:48:09 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:yCIAbZWUBjJRiEQlmdUpWMgmeFcF247lqkR:yqbYUx8VeFcjn
Threatray 4'489 similar samples on MalwareBazaar
TLSH T1EBC4D0C43B39F706DDA95A309A35DDB557A81DACB100B5E26EDD3B4BB8EC201A90CF05
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10522/11/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4504/4/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
Magika pebin
File icon (PE):PE icon
dhash icon 40e1f8ecc4c46969 (13 x Formbook, 5 x MassLogger, 3 x AgentTesla)
Reporter adrian__luca
Tags:exe MassLogger

Intelligence


File Origin
# of uploads :
2
# of downloads :
283
Origin country :
HU HU
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
270d25fa4c48a659c108da5452b8b90ea07f0473ee4dcaeb66889eb0e2443c99
Verdict:
Malicious activity
Analysis date:
2025-03-07 14:38:23 UTC
Tags:
snake keylogger evasion stealer

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
97.4%
Tags:
snake virus micro msil
Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending an HTTP GET request
Sending a custom TCP request
Reading critical registry keys
Searching for the window
Creating a window
Сreating synchronization primitives
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Creating a process with a hidden window
Creating a file in the %temp% directory
Launching a process
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
DNS request
Connection attempt
Adding an exclusion to Microsoft Defender
Enabling autorun by creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
invalid-signature obfuscated packed packed packer_detected signed
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:
Snake Keylogger
Verdict:
Malicious
Result
Threat name:
MSIL Logger, MassLogger RAT
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
.NET source code references suspicious native API functions
Adds a directory exclusion to Windows Defender
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
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 dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: Scheduled temp file as task from temp location
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 schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM3
Yara detected MassLogger RAT
Yara detected MSIL Logger
Yara detected Telegram RAT
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1632424 Sample: mCqTwcbnfm.exe Startdate: 07/03/2025 Architecture: WINDOWS Score: 100 47 reallyfreegeoip.org 2->47 49 checkip.dyndns.org 2->49 51 checkip.dyndns.com 2->51 65 Found malware configuration 2->65 67 Malicious sample detected (through community Yara rule) 2->67 69 Antivirus / Scanner detection for submitted sample 2->69 73 11 other signatures 2->73 8 mCqTwcbnfm.exe 7 2->8         started        12 jFvxxbujkwUz.exe 5 2->12         started        14 svchost.exe 2->14         started        signatures3 71 Tries to detect the country of the analysis system (by using the IP) 47->71 process4 dnsIp5 39 C:\Users\user\AppData\...\jFvxxbujkwUz.exe, PE32 8->39 dropped 41 C:\Users\...\jFvxxbujkwUz.exe:Zone.Identifier, ASCII 8->41 dropped 43 C:\Users\user\AppData\Local\...\tmpC491.tmp, XML 8->43 dropped 45 C:\Users\user\AppData\...\mCqTwcbnfm.exe.log, ASCII 8->45 dropped 75 Uses schtasks.exe or at.exe to add and modify task schedules 8->75 77 Adds a directory exclusion to Windows Defender 8->77 79 Injects a PE file into a foreign processes 8->79 17 powershell.exe 23 8->17         started        20 mCqTwcbnfm.exe 15 2 8->20         started        23 schtasks.exe 1 8->23         started        81 Antivirus detection for dropped file 12->81 83 Multi AV Scanner detection for dropped file 12->83 25 jFvxxbujkwUz.exe 14 2 12->25         started        27 schtasks.exe 1 12->27         started        29 jFvxxbujkwUz.exe 12->29         started        57 127.0.0.1 unknown unknown 14->57 file6 signatures7 process8 dnsIp9 59 Loading BitLocker PowerShell Module 17->59 31 WmiPrvSE.exe 17->31         started        33 conhost.exe 17->33         started        53 checkip.dyndns.com 158.101.44.242, 49685, 49686, 80 ORACLE-BMC-31898US United States 20->53 55 reallyfreegeoip.org 104.21.16.1, 443, 49687, 49688 CLOUDFLARENETUS United States 20->55 35 conhost.exe 23->35         started        61 Tries to steal Mail credentials (via file / registry access) 25->61 63 Tries to harvest and steal browser information (history, passwords, etc) 25->63 37 conhost.exe 27->37         started        signatures10 process11
Threat name:
Win32.Trojan.Leonem
Status:
Malicious
First seen:
2025-02-10 06:02:13 UTC
File Type:
PE (.Net Exe)
Extracted files:
8
AV detection:
27 of 38 (71.05%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  8/10
Tags:
collection discovery execution spyware stealer
Behaviour
Scheduled Task/Job: Scheduled Task
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
outlook_office_path
outlook_win_path
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
Verdict:
Malicious
Tags:
404keylogger
YARA:
n/a
Unpacked files
SH256 hash:
270d25fa4c48a659c108da5452b8b90ea07f0473ee4dcaeb66889eb0e2443c99
MD5 hash:
00e8957d98a3a103e315a16751bbab0f
SHA1 hash:
edc58a709f451f598e2189baa579e40b02437c12
SH256 hash:
5650a57e45cb582a3db28b987de09af35bde944c33d96f8e4924eef7099bb6d4
MD5 hash:
28938c612d4f7fa54cc6437115bfcd32
SHA1 hash:
74c82cb078d166fda6ebc568a712b6b3564b9e54
Detections:
SUSP_OBF_NET_ConfuserEx_Name_Pattern_Jan24 SUSP_OBF_NET_Reactor_Indicators_Jan24
SH256 hash:
e712bcd56fe64742c0f674f3acff83490f8103c260ea3389f56151b5066b7cd3
MD5 hash:
7bad4197d1ae020c9049a782eb9a71d2
SHA1 hash:
e1253047ea92beb7d161b106765ad8b03bc86b1e
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:crime_snake_keylogger
Author:Rony (r0ny_123)
Description:Detects Snake keylogger payload
Rule name:INDICATOR_KB_CERT_7c1118cbbadc95da3752c46e47a27438
Author:ditekSHen
Description:Detects executables signed with stolen, revoked or invalid certificates
Rule name:INDICATOR_SUSPICIOUS_Binary_References_Browsers
Author:ditekSHen
Description:Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers.
Rule name:INDICATOR_SUSPICIOUS_EXE_TelegramChatBot
Author:ditekSHen
Description:Detects executables using Telegram Chat Bot
Rule name:MAL_Envrial_Jan18_1
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
Author:Florian Roth
Description:Detects Encrial credential stealer malware
Reference:https://twitter.com/malwrhunterteam/status/953313514629853184
Rule name:masslogger_gcch
Author:govcert_ch
Rule name:NET
Author:malware-lu
Rule name:NETexecutableMicrosoft
Author:malware-lu
Rule name:PE_Digital_Certificate
Author:albertzsigovits
Rule name:pe_imphash
Rule name:RANSOMWARE
Author:ToroGuitar
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash
Rule name:Sus_Obf_Enc_Spoof_Hide_PE
Author:XiAnzheng
Description:Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)
Rule name:telegram_bot_api
Author:rectifyq
Description:Detects file containing Telegram Bot API
Rule name:Windows_Trojan_SnakeKeylogger_af3faa65
Author:Elastic Security
Rule name:win_masslogger_w0
Author:govcert_ch

File information


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

BLint


The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (HIGH_ENTROPY_VA)high

Comments