MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 aa291e4ac1c7bef9248dab1d598ce833e4c837963ed8583d652164e22b93511a. 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 5 File information Comments

SHA256 hash: aa291e4ac1c7bef9248dab1d598ce833e4c837963ed8583d652164e22b93511a
SHA3-384 hash: 46d1ea86012eca5478a8f6f1c0c1044bba6a0ce28d36d3a2af7ec066cd39a94188836ef5d5e88a7929701f8169dff026
SHA1 hash: 22f21e90e7b6caa3a7f9b7e41b8e23951bc0b623
MD5 hash: 035f120ab00a84924fd97f8a3251dacc
humanhash: music-bakerloo-autumn-delaware
File name:aa291e4ac1c7bef9248dab1d598ce833e4c837963ed8583d652164e22b93511a
Download: download sample
Signature MassLogger
File size:720'896 bytes
First seen:2025-03-10 11:49:32 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'600 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 12288:vdOWsbkeayT2+gG1uwnJwrK2aQIuvq/ZwFCovAhzYyT2:1MkeX/arK2afF/ZMvAj
TLSH T1DEE4E0685A8CC813CD6E63BD06A0E1B4133D5DEAC546DB0B2ACDADEF7E533515A182C3
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
dhash icon 0068694969797400 (7 x MassLogger, 5 x VIPKeylogger, 4 x Formbook)
Reporter adrian__luca
Tags:exe MassLogger

Intelligence


File Origin
# of uploads :
1
# of downloads :
362
Origin country :
HU HU
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
aa291e4ac1c7bef9248dab1d598ce833e4c837963ed8583d652164e22b93511a
Verdict:
Malicious activity
Analysis date:
2025-03-10 15:49:19 UTC
Tags:
snake keylogger evasion stealer ims-api generic

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

Behaviour
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
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed packed packer_detected stealer vbnet
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
Contains functionality to log keystrokes (.Net Source)
Found malware configuration
Joe Sandbox ML detected suspicious sample
Loading BitLocker PowerShell Module
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 MSIL Logger
Yara detected Telegram RAT
Behaviour
Behavior Graph:
Threat name:
ByteCode-MSIL.Infostealer.LokiBot
Status:
Malicious
First seen:
2025-03-10 11:50:17 UTC
File Type:
PE (.Net Exe)
Extracted files:
17
AV detection:
26 of 38 (68.42%)
Threat level:
  5/5
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
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:
aa291e4ac1c7bef9248dab1d598ce833e4c837963ed8583d652164e22b93511a
MD5 hash:
035f120ab00a84924fd97f8a3251dacc
SHA1 hash:
22f21e90e7b6caa3a7f9b7e41b8e23951bc0b623
SH256 hash:
e80a463e16b14b43e4112cb8f0cb0cf44ff245be592202042373a02b9ea4deb9
MD5 hash:
bbea1aafd0d7058f6f46c8ceff355f96
SHA1 hash:
14ca07073c0a943129823d6532358a55761a203f
SH256 hash:
158bc834f731028ae6f05d84e25eeeb473388fb79c53c4c97f2d5a73b7f30adf
MD5 hash:
49ea5ffb3686c65b4cb7dc754cca1b68
SHA1 hash:
a9114fdfb71ecefe25e80e02200d634a56918c20
Detections:
win_404keylogger_g1 win_masslogger_w0 MAL_Envrial_Jan18_1 INDICATOR_SUSPICIOUS_Binary_References_Browsers INDICATOR_SUSPICIOUS_EXE_TelegramChatBot
SH256 hash:
4b3ea81eff67b3512644c405daf5507d5030adf2e6b10787f402189fa41fee62
MD5 hash:
744fe51ddd158e4a22502620bf8aa376
SHA1 hash:
d73725d35c71d70433ad5677865332ef3839b3c8
Detections:
SUSP_OBF_NET_ConfuserEx_Name_Pattern_Jan24 SUSP_OBF_NET_Reactor_Indicators_Jan24
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: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.

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 (GUARD_CF)high

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