MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 03ffd9138d53cd6d65d05e242d9775a3b51201a0d556d208a69509e7be0455b7. 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 21 File information Comments

SHA256 hash:	03ffd9138d53cd6d65d05e242d9775a3b51201a0d556d208a69509e7be0455b7
SHA3-384 hash:	d8099bd22f3f7128b7a9693b59f44fc2674b28efbfb7d90169965c0931916466115fcd06fab19b2ccb3c2585cd6e4569
SHA1 hash:	c170cdd49d298c04618c34671f28597d9cc94450
MD5 hash:	0c5fe9c5efc8518ae098948f69eaaa4a
humanhash:	fix-oklahoma-hotel-maryland
File name:	SecuriteInfo.com.Win32.MalwareX-gen.39449132
Download:	download sample
Signature	MassLogger Create hunting rule
File size:	680'960 bytes
First seen:	2025-08-09 11:35:22 UTC
Last seen:	2025-08-09 12:19:30 UTC
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep	12288:o8jTIbZXcL3wKDSQ4KhG07fRPWZ7V6vXmDqSFP3Dm/Mc9iV0h7x83ZNlc:vTIbZXcL3wKDSQ7tg7VmX6rm/79lh7C3
TLSH	T179E422043AA68E17C4A707F45AB4D2708B387D5DE932C6CE5EE86DDB3DB2B128940353
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	SecuriteInfoCom
Tags:	exe MassLogger

Intelligence

File Origin

# of uploads :

# of downloads :

Origin country :

Vendor Threat Intelligence

Malware family:

n/a

ID:

File name:

SecuriteInfo.com.Win32.MalwareX-gen.39449132

Verdict:

Malicious activity

Analysis date:

2025-08-09 11:40:01 UTC

Tags:

evasion snake keylogger telegram stealer

Link:

https://app.any.run/tasks/87704d2a-4df5-4cad-b39c-aae269d40eaa

Note:

ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample

Detection:

n/a

Link:

https://www.capesandbox.com/analysis/19884/

Detection(s):

SecuriteInfo.com.Win32.MalwareX-gen.39449132.UNOFFICIAL

Verdict:

Malicious

Score:

92.5%

Link:

https://cyber-fortress.com/docs/result/index.php?id=6897329a1e8a59ee04e7f2d9

Tags:

spawn shell micro

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 explorer lolbin obfuscated packed packed reconnaissance roboski snakestealer stego

Link:

https://www.filescan.io/uploads/6897329b9ef4d2ff7cf3e4a6/reports/838657dc-522b-44a0-8879-d5acb7aef33f/overview

Verdict:

Malicious

Labled as:

Trojan.Generic

Link:

https://www.hybrid-analysis.com/sample/03ffd9138d53cd6d65d05e242d9775a3b51201a0d556d208a69509e7be0455b7

Malware family:

Snake Keylogger

Verdict:

Malicious

Link:

https://analyze.intezer.com/analyses/dc7fe111-e441-48d1-a0b7-abd5e7717096

Score:

99%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/03ffd9138d53cd6d65d05e242d9775a3b51201a0d556d208a69509e7be0455b7

Gathering data

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/03ffd9138d53cd6d65d05e242d9775a3b51201a0d556d208a69509e7be0455b7/

Threat name:

ByteCode-MSIL.Spyware.Negasteal

Status:

Malicious

First seen:

2025-08-09 10:11:23 UTC

File Type:

PE (.Net Exe)

Extracted files:

AV detection:

19 of 24 (79.17%)

Threat level:

2/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=ap75se4nkpgw2zoqlysc3f3vuo2reana2vlnecfgsue6ppqekw3q._file

Verdict:

malicious

Label(s):

vipkeylogger

unc_loader_037

Similar samples:

error

MassLogger

Result

Malware family:

vipkeylogger

Score:

10/10

Tags:

family:vipkeylogger collection discovery execution keylogger spyware stealer

Link:

https://tria.ge/reports/250809-nqe3csdn6z/

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

SmartAssembly .NET packer

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

Verdict:

Malicious

Tags:

n/a

YARA:

n/a

Link:

https://app.threat.zone/submission/bf6a6a49-4ed0-4d33-a99e-48a9a9488e4d

Unpacked files

SH256 hash:

03ffd9138d53cd6d65d05e242d9775a3b51201a0d556d208a69509e7be0455b7

MD5 hash:

0c5fe9c5efc8518ae098948f69eaaa4a

SHA1 hash:

c170cdd49d298c04618c34671f28597d9cc94450

Link:

https://www.unpac.me/results/da41f554-fb3d-4d85-9781-72f450e9eccb/

SH256 hash:

44f92c25d4d71cd0848fdd7e79ac36d779480da454ef0c9a44ced7f4aea16dcc

MD5 hash:

a6ecee6815d16e82a0c38dd0b6015c64

SHA1 hash:

1045aefcdac89b74c23e54d3bac0641bea6ad015

Detections:

MAL_Envrial_Jan18_1

INDICATOR_SUSPICIOUS_Binary_References_Browsers

INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients

INDICATOR_SUSPICIOUS_EXE_DotNetProcHook

INDICATOR_SUSPICIOUS_EXE_TelegramChatBot

Link:

https://www.unpac.me/results/da41f554-fb3d-4d85-9781-72f450e9eccb/

Parent samples :

734f02a83984fa7a8d735c3fcaffd7cf4faf4af94438d198e036ba2fab77bfc9
03ffd9138d53cd6d65d05e242d9775a3b51201a0d556d208a69509e7be0455b7
c5e4aa78af496b5eba31db0d046a0d9165174d60b28dd6acec669628a2c9bf30
3fbfa1b663262c6680de89a01bc35815b31a8520c155794091f48a726a6305ec
b6fdc7de80b3afad0be8be678dbd7dbf1edf000434f075e67bdc3236488cd1fe
4af56b9bfd7f7de86cc0b3b6a910c2ffb331f6c76e32104041c554c00409d296

SH256 hash:

8c4060ead286a8f3593c93e7621dc1257ef4df7960645f11e77fc86637e83e62

MD5 hash:

91d04bf31ad8c518a02fff5853842637

SHA1 hash:

1c1ae6eb976eb8e007b652b543d30d3b45c235e8

Detections:

INDICATOR_EXE_Packed_SmartAssembly

Link:

https://www.unpac.me/results/da41f554-fb3d-4d85-9781-72f450e9eccb/

Parent samples :

3a90000f3e7765257eee7ef51199973e93b016d6a43b9271f441335dad4cda90
5ee74602fdef3846c56f40f16231b576112c9169dc27a6cd2d5550035b358fa1
120449b84850ba5b41e73f85e2f178271dd1cd0b8743f1e5af6ef760aa39b199
d61d38c490cbeb69dc98be97f33cf269fa4125891a837b02ca4b54704a05879f
03ffd9138d53cd6d65d05e242d9775a3b51201a0d556d208a69509e7be0455b7
d7364c65d5ab68af62326f3e4d495278a7e9389e6c3bb3ae54cae85fff5dfec5

SH256 hash:

f8fc0e4d2009dfd48d6e9629b7ebb623e0e3f014b177adb4b000b0157b497f54

MD5 hash:

6046aff3f0e59357688619c1801eceb8

SHA1 hash:

216bb22beb2a2d97ea8cc85b09725c359eeb54b6

Detections:

SUSP_OBF_NET_ConfuserEx_Name_Pattern_Jan24

SUSP_OBF_NET_Reactor_Indicators_Jan24

Link:

https://www.unpac.me/results/da41f554-fb3d-4d85-9781-72f450e9eccb/

Malware family:

SnakeKeylogger

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/03ffd9138d53/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/03ffd9138d53cd6d65d05e242d9775a3b51201a0d556d208a69509e7be0455b7

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:	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:	matiex Create hunting rule
Author:	Michelle Khalil
Description:	This rule detects unpacked matiex malware samples.

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:	Sus_Obf_Enc_Spoof_Hide_PE Create hunting rule
Author:	XiAnzheng
Description:	Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(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.

Web download

MassLogger

exe 03ffd9138d53cd6d65d05e242d9775a3b51201a0d556d208a69509e7be0455b7

(this sample)

Cape

https://www.capesandbox.com/analysis/19884/

URLhaus

https://urlhaus.abuse.ch/url/3599565/

Delivery method

Distributed via web download

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

ID	Title	Severity
CHECK_AUTHENTICODE	Missing Authenticode	high
CHECK_DLL_CHARACTERISTICS	Missing dll Security Characteristics (GUARD_CF)	high

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