MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 bef3b3c43622687b67eebaf10120bd5fc5f957a6cf46b176cbbd4c50ce9b5c5c. 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 16 File information Comments

SHA256 hash:	bef3b3c43622687b67eebaf10120bd5fc5f957a6cf46b176cbbd4c50ce9b5c5c
SHA3-384 hash:	c70d8de1bb15356346298d51ba726a6b95a1f2f696b4c397cbbde33880641b7b91339d6328698ff1aaa0f544f259859a
SHA1 hash:	15b331561e481538ae639324170c6935c30c45e4
MD5 hash:	d08b550fd016b0c47dd20ff4a7d89742
humanhash:	eleven-alabama-march-enemy
File name:	bef3b3c43622687b67eebaf10120bd5fc5f957a6cf46b176cbbd4c50ce9b5c5c
Download:	download sample
Signature	MassLogger Create hunting rule
File size:	581'632 bytes
First seen:	2025-05-09 12:36:06 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'600 x Formbook, 12'241 x SnakeKeylogger)
ssdeep	12288:V1JM2iN0f2ThrUJNgI6PjCca4WoweZun4tJ9qlWp2oD1IWl1xwp:u1WfKhrULBojxaD9eZusyToD1ldY
Threatray	3'593 similar samples on MalwareBazaar
TLSH	T1ABC402143299A812C8960BF45C92D27417FC9D8CE813C717DFEA6EDF39B6B4246463A3
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	0000000000000000 (872 x AgentTesla, 496 x Formbook, 296 x RedLineStealer)
Reporter	adrian__luca
Tags:	exe MassLogger

Intelligence

File Origin

# of uploads :

# of downloads :

351

Origin country :

Vendor Threat Intelligence

Malware family:

n/a

ID:

File name:

bef3b3c43622687b67eebaf10120bd5fc5f957a6cf46b176cbbd4c50ce9b5c5c

Verdict:

Malicious activity

Analysis date:

2025-05-09 14:09:20 UTC

Tags:

snake keylogger evasion stealer netreactor ims-api generic

Link:

https://app.any.run/tasks/06242def-8bbc-4e18-88c6-9222565becfa

Note:

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

Detection(s):

SecuriteInfo.com.MSIL.Kryptik.WZA.UNOFFICIAL

Verdict:

Malicious

Score:

99.1%

Link:

https://cyber-fortress.com/docs/result/index.php?id=681df84fe16384d6a70341dd

Tags:

agenttesla virus micro msil

Result

Verdict:

Malware

Maliciousness:

Behaviour

Searching for the window

Creating a window

Сreating synchronization primitives

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

Verdict:

Malicious

Threat level:

10/10

Confidence:

100%

Tags:

obfuscated packed packed packer_detected vbnet

Link:

https://www.filescan.io/uploads/681df6c9c7418694c8a7feeb/reports/55517dfa-b321-46a4-aeaf-af538219bd65/overview

Verdict:

Malicious

Labled as:

Trojan.Generic

Link:

https://www.hybrid-analysis.com/sample/bef3b3c43622687b67eebaf10120bd5fc5f957a6cf46b176cbbd4c50ce9b5c5c

Malware family:

Snake Keylogger

Verdict:

Malicious

Link:

https://analyze.intezer.com/analyses/83db89e4-9a97-4e39-b8c5-6c1dcf648144

Result

Threat name:

MSIL Logger, MassLogger RAT

Detection:

malicious

Classification:

troj.spyw.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1685363

Signature

.NET source code contains potential unpacker

.NET source code references suspicious native API functions

Antivirus / Scanner detection for submitted sample

Contains functionality to log keystrokes (.Net Source)

Found malware configuration

Injects a PE file into a foreign processes

Joe Sandbox ML detected suspicious sample

Malicious sample detected (through community Yara rule)

Multi AV Scanner detection for submitted file

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:

Download SVG

Score:

100%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/bef3b3c43622687b67eebaf10120bd5fc5f957a6cf46b176cbbd4c50ce9b5c5c

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/bef3b3c43622687b67eebaf10120bd5fc5f957a6cf46b176cbbd4c50ce9b5c5c/

Threat name:

ByteCode-MSIL.Spyware.Negasteal

Status:

Malicious

First seen:

2025-04-16 05:03:08 UTC

File Type:

PE (.Net Exe)

Extracted files:

AV detection:

26 of 37 (70.27%)

Threat level:

2/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=x3z3hrbwejuhwz7oxlyqcif5l7c7sv5gz5dlc5wlxvgfbtu3lroa._file

Verdict:

malicious

Label(s):

unc_loader_037

novastealer

MassLogger

7d8f98ced8dcca5e2397bdaaff65fa3d81fb264425167e282ad4fce5f832b59e

MassLogger

8d3dc8435753d98fab3d705924b85fc92b2c4fa3e62ad118497159422c6665c7

MassLogger

91a04734fb1bfa93391d961ff94dfdfffc3021d6cf56cb31f9d696aa3251c6e2

MassLogger

ceaa99440a1294e1a574941c6f1b01db99ad6d85d314264156989e893a64cd6e

MassLogger

+ 3'583 additional samples on MalwareBazaar

Result

Malware family:

masslogger

Score:

10/10

Tags:

family:masslogger collection discovery spyware stealer

Link:

https://tria.ge/reports/250509-ps5w8stzas/

Behaviour

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

outlook_office_path

outlook_win_path

System Location Discovery: System Language Discovery

Suspicious use of SetThreadContext

Accesses Microsoft Outlook profiles

Looks up external IP address via web service

Reads user/profile data of local email clients

Reads user/profile data of web browsers

MassLogger

Masslogger family

Malware Config

C2 Extraction:

https://api.telegram.org/bot7708941755:AAESo20CaDDAOjLLtHQBUxBHzsPN6t2HmCk/sendMessage?chat_id=8161167655

Verdict:

Suspicious

Tags:

404keylogger

YARA:

n/a

Link:

https://app.threat.zone/submission/b02ecbcc-a406-42da-82f1-a76eda42cf51

Unpacked files

SH256 hash:

bef3b3c43622687b67eebaf10120bd5fc5f957a6cf46b176cbbd4c50ce9b5c5c

MD5 hash:

d08b550fd016b0c47dd20ff4a7d89742

SHA1 hash:

15b331561e481538ae639324170c6935c30c45e4

Link:

https://www.unpac.me/results/51cbd7b3-e34f-409b-920e-f3b6967e92b8/

SH256 hash:

75ca6ccd4ba3e6c5e8148f4b23f8a007ddc7b31abcc5327e0a2c805515039bd4

MD5 hash:

7daa54a9a723d41ed3cf6befa06a911a

SHA1 hash:

17238953a9fa4f5d08348142c7464690327f0031

Link:

https://www.unpac.me/results/51cbd7b3-e34f-409b-920e-f3b6967e92b8/

SH256 hash:

7925eeab6b1b6fd925d4062fce0cc14a6d1a079600c991c61d20bb3ca6fa9b14

MD5 hash:

dcd63eb81725fe80a6226145a3955671

SHA1 hash:

5e3c054f8a5a04d6167708aef7e52694aa314ba5

Detections:

win_masslogger_w0

win_404keylogger_g1

MAL_Envrial_Jan18_1

INDICATOR_SUSPICIOUS_Binary_References_Browsers

INDICATOR_SUSPICIOUS_EXE_TelegramChatBot

Link:

https://www.unpac.me/results/51cbd7b3-e34f-409b-920e-f3b6967e92b8/

Parent samples :
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SH256 hash:

9f7d65da4569298a648200b694d44fe00b2ea46530861916b37c16d3b33326c1

MD5 hash:

202c4b47bcc355551b99c987505f555d

SHA1 hash:

92de8d684e68660b8fdaae7fcb8031ac60851095

Detections:

SUSP_OBF_NET_ConfuserEx_Name_Pattern_Jan24

SUSP_OBF_NET_Reactor_Indicators_Jan24

Link:

https://www.unpac.me/results/51cbd7b3-e34f-409b-920e-f3b6967e92b8/

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/bef3b3c43622687b67eebaf10120bd5fc5f957a6cf46b176cbbd4c50ce9b5c5c

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:	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_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_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.

No further information available

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 (HIGH_ENTROPY_VA)	high

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