MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a6c4f4b0e6df5033db3fffc8239c22b376ebdb5a1de76d66371da62db32b268f. 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 21 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a6c4f4b0e6df5033db3fffc8239c22b376ebdb5a1de76d66371da62db32b268f
SHA3-384 hash: 0ab6c14a823639648fbdf88305da774861fc7b0fc05f89a7e1059dcf0b02e80acbfc689d99e6f2bf4a4ff1a99d1d21bd
SHA1 hash: fab519126465e215dcca0d7cea953945888a703a
MD5 hash: f40a4ec6630d5542f81d39ff056d8a39
humanhash: london-yellow-victor-mockingbird
File name:a6c4f4b0e6df5033db3fffc8239c22b376ebdb5a1de76d66371da62db32b268f
Download: download sample
Signature MassLogger
Create hunting rule
File size:843'264 bytes
First seen:2026-06-08 08:44:59 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (49'066 x AgentTesla, 20'011 x Formbook, 12'352 x SnakeKeylogger)
ssdeep 24576:VDzAEFT0D0brIc7dPCpgqjmJVYnx8pwJEJYP311706R:13FQK7Fy6JVui6KY/117
TLSH T18B050254161AD803C4960FF449A0E3F466684E98ED22D613DFEAFEAFF9BE5957800343
TrID 73.9% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
6.6% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
6.6% (.EXE) Win64 Executable (generic) (6522/11/2)
4.5% (.EXE) Win32 Executable (generic) (4504/4/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
Magika pebin
dhash icon 0000000000000000 (902 x AgentTesla, 555 x Formbook, 316 x RedLineStealer)
Reporter adrian__luca
Tags:exe MassLogger

Intelligence

File Origin
# of uploads :
1
# of downloads :
85
Origin country :
HU HU
Vendor Threat Intelligence
Malware configuration found for:
RoboSki
Details
Link:
https://research.acce.ciphertechsolutions.com/results/748d5267-cb4d-4eb0-93a6-0bb8d11e6cdd/
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/69637/
Detection(s):
SecuriteInfo.com.Trojan.PWS.Siggen5.33665.808.8457.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
99.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6a2681d73e9eff6a6b68b54f
Tags:
micro shell spam msil
Result
Verdict:
Malware
Maliciousness:

Behaviour
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
Sending a custom TCP request
Reading critical registry keys
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
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Stealing user critical data
Adding an exclusion to Microsoft Defender
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
formbook packed similar-threat vbnet
Link:
https://www.filescan.io/uploads/6a2681391f652d68656d9bae/reports/960a7b33-f3c1-410b-9518-95b8f99c5d34/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/a6c4f4b0e6df5033db3fffc8239c22b376ebdb5a1de76d66371da62db32b268f
Verdict:
Malicious
File Type:
exe x32
First seen:
2026-05-27T04:38:00Z UTC
Last seen:
2026-06-07T13:59:00Z UTC
Hits:
~1000
Link:
https://opentip.kaspersky.com/a6c4f4b0e6df5033db3fffc8239c22b376ebdb5a1de76d66371da62db32b268f/results?tab=lookup
Verdict:
Suspicious
Link:
https://analyze.intezer.com/analyses/dff10807-9a61-456c-b29a-e7d687b957e4
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/a6c4f4b0e6df5033db3fffc8239c22b376ebdb5a1de76d66371da62db32b268f
Gathering data
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a6c4f4b0e6df5033db3fffc8239c22b376ebdb5a1de76d66371da62db32b268f/
Threat name:
Win32.Backdoor.FormBook
Create hunting rule
Status:
Malicious
First seen:
2026-05-27 07:30:12 UTC
AV detection:
23 of 38 (60.53%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=u3cpjmhg35idhwz777echhbcwn3oxw22dxtw2zrxdwtc3mzle2hq._file
Verdict:
malicious
Label(s):
novastealer
Create hunting rule
Similar samples:
error
MassLogger
Result
Malware family:
masslogger
Create hunting rule
Score:
  10/10
Tags:
family:masslogger collection discovery execution persistence spyware stealer
Link:
https://tria.ge/reports/260608-kn3tvsbs7t/
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
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
Family: MassLogger
Unpacked files
SH256 hash:
a6c4f4b0e6df5033db3fffc8239c22b376ebdb5a1de76d66371da62db32b268f
MD5 hash:
f40a4ec6630d5542f81d39ff056d8a39
SHA1 hash:
fab519126465e215dcca0d7cea953945888a703a
Link:
https://www.unpac.me/results/0666ff88-f57d-4d45-a500-59f74d094c1a/
SH256 hash:
dd036e8ba0c9d4c42fe96c5144ef8ea2cc9c6f49958a8a3d8e480cd41e42eb69
MD5 hash:
b0294555d4e059a669b517f484ffb344
SHA1 hash:
66466c82936d1b17e65034e6a762ee91323a6be9
Detections:
win_404keylogger_g1
Create hunting rule
win_masslogger_w0
Create hunting rule
triage_snakekeylogger_infostealer
Create hunting rule
Link:
https://www.unpac.me/results/0666ff88-f57d-4d45-a500-59f74d094c1a/
Parent samples :
a034122bb42b81cd6a61a4f7bd5040f8ed2ea5e9d7164d4786f52a2a53a77bde
e943f16d0fdb06da7d7ea64e24b1c439f1d4a85380a5551c1cec8892e99d5ca4
0f3e7c10e425676a7532cf23a846e739d6abdc2e7f83eb0bb4ac4821d98543b6
81d08f3800e3dea51f1eae0d3f09f416f73ba1e2933205eb0f56059b01a96493
3cc6a6eefacfb216b9941d31393c3d7efc7ac9ac12d172d866af04250f49bfe2
a6c4f4b0e6df5033db3fffc8239c22b376ebdb5a1de76d66371da62db32b268f
SH256 hash:
3394f6f7fe47cf91154219a6f3bcbaeb9cbe394f2162f6c0565fe6fac4c0eff1
MD5 hash:
d5031a99bd08d33f07700c36b9967e28
SHA1 hash:
b497a6eb6106e2e216c4b1abeada7e85df3bfd68
Link:
https://www.unpac.me/results/0666ff88-f57d-4d45-a500-59f74d094c1a/
SH256 hash:
5aef543f2aaa09031143ed0b9734dd693fa81b56dfe75f546df36ea394210131
MD5 hash:
706cd7eac9f2ec43307b7b4538a39a95
SHA1 hash:
e31f3775922f260fc3ba943eb2f2770f7b3b1112
Link:
https://www.unpac.me/results/0666ff88-f57d-4d45-a500-59f74d094c1a/
Malware family:
MassLogger
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/a6c4f4b0e6df/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/a6c4f4b0e6df5033db3fffc8239c22b376ebdb5a1de76d66371da62db32b268f

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_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.

Cape
Cape
https://www.capesandbox.com/analysis/69637/

Comments