MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 63f72822336aebd6724c389a0252a111a51e104cc0015cc316e2b92ac6d9a58d. 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: 15


Intelligence 15 IOCs YARA 6 File information Comments

SHA256 hash: 63f72822336aebd6724c389a0252a111a51e104cc0015cc316e2b92ac6d9a58d
SHA3-384 hash: bf807dea7015e20da6d164ebc467b8cd2c85da949c9d1d4b9d6c51d622ea1aca361accf98ec79a081207ff296ce32d08
SHA1 hash: a44e9ca20795b59de2c76a617dfc6b5fc9b5283f
MD5 hash: 66999f48926af181d71478d0231ca3b5
humanhash: wyoming-london-river-friend
File name:261bDA7yXufdbxB.exe
Download: download sample
Signature MassLogger
File size:577'536 bytes
First seen:2025-02-10 10:24:13 UTC
Last seen:2025-03-07 14:05:59 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'597 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 12288:xAbZWUBjtvarRcTF/u8FAQdClydJBderLIxnyUm47U:qbYUParRcTFFGQUgdXde0nyU
TLSH T10FC4D0C83B26A716CDA52A30CA35EEF553A81DACB00079E26FDD3B57B9AC2115D0CF45
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
Reporter lowmal3
Tags:exe MassLogger

Intelligence


File Origin
# of uploads :
3
# of downloads :
474
Origin country :
DE DE
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
261bDA7yXufdbxB.exe
Verdict:
Malicious activity
Analysis date:
2025-02-10 10:26:17 UTC
Tags:
evasion snake keylogger stealer

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
96.5%
Tags:
snake shell virus micro
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Сreating synchronization primitives
Creating a process with a hidden window
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
DNS request
Connection attempt
Sending an HTTP GET request
Sending a custom TCP request
Reading critical registry keys
Adding an exclusion to Microsoft Defender
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:
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
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
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
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 Telegram RAT
Behaviour
Behavior Graph:
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2025-02-10 10:24:26 UTC
File Type:
PE (.Net Exe)
Extracted files:
9
AV detection:
22 of 24 (91.67%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
novastealer unknown_loader_037
Similar samples:
Result
Malware family:
n/a
Score:
  8/10
Tags:
collection discovery execution spyware stealer
Behaviour
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
System Network Configuration Discovery: Internet Connection 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
Downloads MZ/PE file
Verdict:
Malicious
Tags:
404keylogger
YARA:
n/a
Unpacked files
SH256 hash:
63f72822336aebd6724c389a0252a111a51e104cc0015cc316e2b92ac6d9a58d
MD5 hash:
66999f48926af181d71478d0231ca3b5
SHA1 hash:
a44e9ca20795b59de2c76a617dfc6b5fc9b5283f
SH256 hash:
4464bb547e6267a08a629273abf986f53a58f9c26eb8ec56f7a5224f78d6ba0f
MD5 hash:
fc3867a9f770760e64a50e2327f02c55
SHA1 hash:
71959d7d3242f2cbd74980341900c17d15149171
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:AgentTesla_DIFF_Common_Strings_01
Author:schmidtsz
Description:Identify partial Agent Tesla strings
Rule name:NET
Author:malware-lu
Rule name:NETexecutableMicrosoft
Author:malware-lu
Rule name:pe_imphash
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)

File information


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

Malspam

MassLogger

Executable exe 63f72822336aebd6724c389a0252a111a51e104cc0015cc316e2b92ac6d9a58d

(this sample)

  
Delivery method
Distributed via e-mail attachment

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