MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 6f73ac9ccb83cecb46f85a50cc7824656d50a3dea45fa47bd9f06ecf139283e2. 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 16 File information Comments

SHA256 hash:	6f73ac9ccb83cecb46f85a50cc7824656d50a3dea45fa47bd9f06ecf139283e2
SHA3-384 hash:	e60a07ac27442810988f7b93b4abf31c78f8a89c71952fa4b95038728a8ba7f0449ba3c29629cfb333cca31811a2325c
SHA1 hash:	f50f30a095d4117118de5a5ab9f51b03226e5c58
MD5 hash:	7c387a93155eea0e2698d77cc61a853d
humanhash:	idaho-failed-indigo-item
File name:	H21Gz0C3ccekkUZ.exe
Download:	download sample
Signature	MassLogger Create hunting rule
File size:	611'840 bytes
First seen:	2025-02-27 16:59:37 UTC
Last seen:	2025-03-03 09:50:49 UTC
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (48'744 x AgentTesla, 19'612 x Formbook, 12'242 x SnakeKeylogger)
ssdeep	12288:Pw4Z36oGsAReML5S2onpvYL6IeaAM7FHMG+bKf:PwK33vuS2AvodeaA
Threatray	2'398 similar samples on MalwareBazaar
TLSH	T16ED4BFAC3210B59EC957C2359EA0FD74A6242CBE9717D20396D71CEFB91DA82CF141E2
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 :

# of downloads :

449

Origin country :

Vendor Threat Intelligence

Malware family:

n/a

ID:

File name:

H21Gz0C3ccekkUZ.exe

Verdict:

Malicious activity

Analysis date:

2025-02-27 18:10:27 UTC

Tags:

evasion snake keylogger stealer

Link:

https://app.any.run/tasks/816f06ac-1954-45f0-93ec-44ea7f72cfa8

Note:

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

Detection(s):

Win.Packed.Agen-10026311-0

Verdict:

Malicious

Score:

96.5%

Link:

https://cyber-fortress.com/docs/result/index.php?id=67c09a412dfba428b46edfa3

Tags:

shell virus msil

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:

Likely Malicious

Threat level:

7.5/10

Confidence:

100%

Tags:

obfuscated obfuscated obfuscated packed packed packer_detected vbnet

Link:

https://www.filescan.io/uploads/67c09a274a3011c802c32abe/reports/d652cf7e-bd28-4488-864a-1bee79e12556/overview

Verdict:

Malicious

Labled as:

MSIL/Kryptik_AGeneric.DIS trojan

Link:

https://www.hybrid-analysis.com/sample/6f73ac9ccb83cecb46f85a50cc7824656d50a3dea45fa47bd9f06ecf139283e2

Result

Verdict:

UNKNOWN

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:

Agent Tesla

Verdict:

Malicious

Link:

https://analyze.intezer.com/analyses/dcb73d65-2709-48cc-bc25-68f989a20c41

Result

Threat name:

MSIL Logger, MassLogger RAT

Detection:

malicious

Classification:

troj.spyw.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1625841

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

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:

Download SVG

Score:

100%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/6f73ac9ccb83cecb46f85a50cc7824656d50a3dea45fa47bd9f06ecf139283e2

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/6f73ac9ccb83cecb46f85a50cc7824656d50a3dea45fa47bd9f06ecf139283e2/

Threat name:

Win32.Trojan.Znyonm

Status:

Malicious

First seen:

2025-02-27 12:21:18 UTC

File Type:

PE (.Net Exe)

Extracted files:

AV detection:

20 of 24 (83.33%)

Threat level:

5/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=n5z2zhglqphmwrxyljimy6bemvwvbi66urp2i66z6bxm6e4sqpra._file

Verdict:

malicious

Label(s):

novastealer

unknown_loader_037

MassLogger

3f21cc31c22b4ad07980033f0d016966da2743d9f65dc5bc592c46c2e028a074

MassLogger

7f3a6915e2dd1ec251b91b5892938ce22aa192b1234f15707147636befabdec0

MassLogger

a883ec7d3df1913ccd847c0ab5d521170adb967cb09cd5b3845e04b50aa4240c

MassLogger

aac33041fefe8ce37a64b94c622ee3c8c5c3e19018f09df1421f8b7f4e5bffc6

MassLogger

error

MassLogger

+ 2'388 additional samples on MalwareBazaar

Result

Malware family:

n/a

Score:

8/10

Tags:

collection discovery execution spyware stealer

Link:

https://tria.ge/reports/250227-vh4jbaszav/

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:

Win.Packed.Agen-10026311-0 404keylogger

YARA:

n/a

Link:

https://app.threat.zone/submission/0558023c-4d9c-40dd-837a-b737d056a831

Unpacked files

SH256 hash:

6f73ac9ccb83cecb46f85a50cc7824656d50a3dea45fa47bd9f06ecf139283e2

MD5 hash:

7c387a93155eea0e2698d77cc61a853d

SHA1 hash:

f50f30a095d4117118de5a5ab9f51b03226e5c58

Link:

https://www.unpac.me/results/a3148894-823d-42b0-aa52-abc219ffeeaa/

SH256 hash:

a61fbe84a8249c28493f3500b090532c4ebedaedc335c3ac14ea6a2587ec1e38

MD5 hash:

ab1a513e370ed9d07fc4c1dad8246109

SHA1 hash:

8ea9e15c374a9663d1b516a4cd0d1172bd2874d7

Detections:

MAL_Envrial_Jan18_1

INDICATOR_SUSPICIOUS_Binary_References_Browsers

INDICATOR_SUSPICIOUS_EXE_TelegramChatBot

Link:

https://www.unpac.me/results/a3148894-823d-42b0-aa52-abc219ffeeaa/

Parent samples :
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SH256 hash:

dbdbf4597b5391da016b2fa2e9369373f11df2f1591041d967ee3902767db68b

MD5 hash:

08d845abf45ad3296a8708ea9a3e001c

SHA1 hash:

c741ce63a2e750573772b80ab8f3f71c31e9e3de

Link:

https://www.unpac.me/results/a3148894-823d-42b0-aa52-abc219ffeeaa/

SH256 hash:

2300af817006f6cbd18641d3db860c0d277d820ce1ab5cae614fc65769ca674c

MD5 hash:

e98dc413bbf292e771df5247e3b822b4

SHA1 hash:

d0a24ef983879f4e61d93939aa9e57f209edf824

Detections:

SUSP_OBF_NET_ConfuserEx_Name_Pattern_Jan24

SUSP_OBF_NET_Reactor_Indicators_Jan24

Link:

https://www.unpac.me/results/a3148894-823d-42b0-aa52-abc219ffeeaa/

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/6f73ac9ccb83cecb46f85a50cc7824656d50a3dea45fa47bd9f06ecf139283e2

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.

Malspam

MassLogger

exe 6f73ac9ccb83cecb46f85a50cc7824656d50a3dea45fa47bd9f06ecf139283e2

(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

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

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