MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 640c7c6ea97dbecc0438cd6d77d4a599e459929f626e2f0b2b4a66dfe1f99b84. 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 23 File information Comments

SHA256 hash:	640c7c6ea97dbecc0438cd6d77d4a599e459929f626e2f0b2b4a66dfe1f99b84
SHA3-384 hash:	c30ce6c6ad30c24035903713e845023a4938bb42ec7b301f45439f7c8d5de65db4da2d6ecccf29b9579cf3932633072e
SHA1 hash:	d7ce809c5ec1ede0489a3be06beb792d38f89f7f
MD5 hash:	75071e56c67a11e605584e2dd88328b8
humanhash:	tennis-alaska-neptune-three
File name:	eJpi6ZTmpkYoC3r.exe
Download:	download sample
Signature	MassLogger Create hunting rule
File size:	1'056'256 bytes
First seen:	2026-06-29 08:23:43 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (49'076 x AgentTesla, 20'045 x Formbook, 12'353 x SnakeKeylogger)
ssdeep	24576:qUvJO/blPE3bMN5E7BC5pwqZemfx/HjiTVt1wt4:Ry5P9NeWXem5vjiTz
TLSH	T1BF259D9C3111FA8EC8878D72C968DDF4A6102CA6D707D24391E77DABB93D7869F041E2
TrID	70.4% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13) 6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 6.2% (.EXE) Win64 Executable (generic) (6522/11/2) 4.8% (.EXE) Win16 NE executable (generic) (5038/12/1) 4.3% (.EXE) Win32 Executable (generic) (4504/4/1)
Magika	pebin
Reporter	adrian__luca
Tags:	exe MassLogger

Intelligence

File Origin

# of uploads :

# of downloads :

162

Origin country :

Vendor Threat Intelligence

Malware configuration found for:

ConfuserEx RoboSki

Details

Link:

https://research.acce.ciphertechsolutions.com/results/159f3c08-5325-4fd0-9ff6-cd2e84b9dce8/

Malware family:

n/a

ID:

File name:

exe

Verdict:

Malicious activity

Analysis date:

2026-06-29 08:31:58 UTC

Tags:

auto-reg ip-check evasion stealer telegram snake keylogger

Link:

https://app.any.run/tasks/0e1ba1c7-89e5-43f9-b787-e00382056b91

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/72345/

Detection(s):

SecuriteInfo.com.Win32.MalwareX-gen.62992616.UNOFFICIAL

Verdict:

Malicious

Score:

99.1%

Link:

https://cyber-fortress.com/docs/result/index.php?id=6a422cbb1548daf709fadca7

Tags:

agenttesla virus msil sage

Result

Verdict:

Malware

Maliciousness:

Behaviour

Creating a window

Creating a process with a hidden window

Creating a file in the %AppData% directory

Enabling the 'hidden' option for recently created files

Adding an access-denied ACE

Creating a file in the %temp% directory

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

Launching a process

Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch

Adding an exclusion to Microsoft Defender

Verdict:

Malicious

Labled as:

Win/malicious_confidence_100%

Link:

https://www.hybrid-analysis.com/sample/640c7c6ea97dbecc0438cd6d77d4a599e459929f626e2f0b2b4a66dfe1f99b84

Verdict:

Malicious

File Type:

exe x32

First seen:

2026-06-22T05:28:00Z UTC

Last seen:

2026-06-29T07:33:00Z UTC

Hits:

~100

Detections:

Trojan.MSIL.Inject.sb Trojan-PSW.Win32.Stelega.sb Trojan-Dropper.Win32.Injector.sb HEUR:Trojan-Spy.MSIL.BPLogger.gen Backdoor.Win32.Androm.sb PDM:Trojan.Win32.Generic Trojan.Win32.Diztakun.sb Trojan.Multi.Agent.sb Trojan.MSIL.Crypt.sb Trojan-Spy.MSIL.BPLogger.sb Trojan-PSW.Win32.Stealer.sb HEUR:Trojan-Spy.MSIL.Agent.sb Trojan.Win32.Agent.sb

Link:

https://opentip.kaspersky.com/640c7c6ea97dbecc0438cd6d77d4a599e459929f626e2f0b2b4a66dfe1f99b84/results?tab=lookup

Malware family:

Snake Keylogger

Verdict:

Malicious

Link:

https://analyze.intezer.com/analyses/6fa3a190-a6db-437d-91ce-b7e640ac7de1

Score:

100%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/640c7c6ea97dbecc0438cd6d77d4a599e459929f626e2f0b2b4a66dfe1f99b84

Verdict:

inconclusive

YARA:

12 match(es)

Tags:

.Net Executable Managed .NET PE (Portable Executable) PE File Layout SOS: 0.83 Win 32 Exe x86

Link:

https://app.malva.re/file/75071e56c67a11e605584e2dd88328b8

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/640c7c6ea97dbecc0438cd6d77d4a599e459929f626e2f0b2b4a66dfe1f99b84/

Verdict:

Malicious

Threat:

Family.SNAKE

Link:

https://tip.neiki.dev/file/640c7c6ea97dbecc0438cd6d77d4a599e459929f626e2f0b2b4a66dfe1f99b84

Threat name:

Win32.Trojan.AgentTesla

Status:

Malicious

First seen:

2026-06-22 07:23:21 UTC

File Type:

PE (.Net Exe)

Extracted files:

AV detection:

18 of 24 (75.00%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=mqghy3vjpw7mybbyzvwxpvffthsfteu7mjxc6czljjtn7ypztoca._file

Verdict:

malicious

Label(s):

novastealer

Similar samples:

error

MassLogger

Result

Malware family:

masslogger

Score:

10/10

Tags:

family:masslogger collection defense_evasion discovery evasion execution persistence spyware stealer trojan

Link:

https://tria.ge/reports/260629-kctrtag141/

Behaviour

Modifies registry key

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: GetForegroundWindowSpam

Suspicious use of AdjustPrivilegeToken

Suspicious use of SetWindowsHookEx

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

Adds Run key to start application

Looks up external IP address via web service

Checks computer location settings

Executes dropped EXE

Reads user/profile data of local email clients

Reads user/profile data of web browsers

Command and Scripting Interpreter: PowerShell

Disables RegEdit via registry modification

Disables Task Manager via registry modification

Family: MassLogger

Modifies Windows Defender DisableAntiSpyware settings

Malware Config

C2 Extraction:

https://api.telegram.org/bot8892355596:AAHtCgmCvqpeFMQc0k90TOzvoWYxw-hvnWY/sendMessage?chat_id=6721127118

Unpacked files

SH256 hash:

640c7c6ea97dbecc0438cd6d77d4a599e459929f626e2f0b2b4a66dfe1f99b84

MD5 hash:

75071e56c67a11e605584e2dd88328b8

SHA1 hash:

d7ce809c5ec1ede0489a3be06beb792d38f89f7f

Link:

https://www.unpac.me/results/d4d69fda-e221-4590-b44e-fad62dfbcdea/

SH256 hash:

b0eec9778e0e153680a3d7712a89ff90efbf1897c365e3215237644b1a8a1abc

MD5 hash:

97b67c48f44206d1dfc2a941f8adedeb

SHA1 hash:

4b4fc2550598373bf645c7c10ef54ae2fb791454

Detections:

win_404keylogger_g1

win_masslogger_w0

triage_snakekeylogger_infostealer

Link:

https://www.unpac.me/results/d4d69fda-e221-4590-b44e-fad62dfbcdea/

SH256 hash:

9b7b864b1e026793db7fe15147751249b43d26caeaa90537a9dc4b4cd29c8a35

MD5 hash:

f3f10a350a46d35893c6583dd78e9d16

SHA1 hash:

a8d4eb50dc881e14652e2c339ee341a6cd57b41d

Link:

https://www.unpac.me/results/d4d69fda-e221-4590-b44e-fad62dfbcdea/

SH256 hash:

4c90e30ef4f273b1bb6fca725026d7327008db677406323ba800fd7efde80461

MD5 hash:

9f18ef89ca547409cfb744702817d504

SHA1 hash:

c2d15b2ef0c996df3c24742a58c13a0dc39607da

Link:

https://www.unpac.me/results/d4d69fda-e221-4590-b44e-fad62dfbcdea/

Malware family:

PrivateLogger

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/640c7c6ea97d/report/overview.html

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 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:	Disable_Defender Create hunting rule
Author:	iam-py-test
Description:	Detect files disabling or modifying Windows Defender, Windows Firewall, or Microsoft Smartscreen

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_RegKeyComb_DisableWinDefender Create hunting rule
Author:	ditekSHen
Description:	Detects executables embedding registry key / value combination indicative of disabling Windows Defender features

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_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:	telebot_framework Create hunting rule
Author:	vietdx.mb

Rule name:	TelegramAPIMalware_PowerShell_EXE Create hunting rule
Author:	@polygonben
Description:	Hunting for pwsh malware using Telegram for C2

Rule name:	telegram_bot_api Create hunting rule
Author:	rectifyq
Description:	Detects file containing Telegram Bot API

Rule name:	VECT_Ransomware Create hunting rule
Author:	Mustafa Bakhit
Description:	Detects activity associated with VECT ransomware. This includes registry modifications and deletions, execution of system and defense-evasion commands, suspicious API usage, mutex creation, file and memory manipulation, ransomware note generation, anti-debugging and anti-analysis techniques, and embedded cryptographic constants (SHA256) characteristic of this malware family. Designed for threat intelligence and malware detection environments.

Rule name:	Windows_Trojan_SnakeKeylogger_af3faa65 Create hunting rule
Author:	Elastic Security

Rule name:	win_dotnet_vb_stealer_rat Create hunting rule
Author:	Arrbat
Description:	Detects .NET/VB executables with stealer/RAT capabilities (sockets, HTTP, processes, registry, etc).

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.

Malspam

MassLogger

exe 640c7c6ea97dbecc0438cd6d77d4a599e459929f626e2f0b2b4a66dfe1f99b84

(this sample)

Delivery method

Distributed via e-mail attachment

Cape

https://www.capesandbox.com/analysis/72345/

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