MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c6de8c6d5228fa7a6101a2cf1574d974f48d8e6caf1c862cc5004d36cf3d527b. 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 17 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: c6de8c6d5228fa7a6101a2cf1574d974f48d8e6caf1c862cc5004d36cf3d527b
SHA3-384 hash: 42df55461d46f1ce2738dba0cf8348b19f0287a97b9698b72b8a66ba2b493263384fead21c3ee56f4906b32cca7c19e2
SHA1 hash: 6e2fd3bc90fce07f121e9eb3ad94545f30773ec6
MD5 hash: ef4d4ab7e588827c7a17293b53a30d1f
humanhash: alaska-september-mango-ink
File name:BEPZA MT103 Credit.pdf.exe
Download: download sample
Signature MassLogger
Create hunting rule
File size:717'824 bytes
First seen:2025-04-15 19:28:27 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'744 x AgentTesla, 19'610 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 12288:DoX8FVy84PI+megz8lu5PgVlIB1d/AIQ6Z9rx/+7AwZOdWsYYT:EX8FIw++8GgVlad/Ao+Enf
Threatray 803 similar samples on MalwareBazaar
TLSH T189E4E02423B69B17E17A1BF20962D57023B57D9DA839D39A5ECABCCF3474F009A41B13
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 James_inthe_box
Tags:exe MassLogger

Intelligence

File Origin
# of uploads :
1
# of downloads :
519
Origin country :
US US
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
BEPZA MT103 Credit.pdf.exe
Verdict:
Malicious activity
Analysis date:
2025-04-15 19:29:28 UTC
Tags:
stealer snake keylogger evasion telegram netreactor ims-api generic
Link:
https://app.any.run/tasks/bdcc6353-19b1-49bb-a155-0954e293b563

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/2370/
Verdict:
Malicious
Score:
99.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67ff3992954c9c53de0b6bd4
Tags:
underscore virus micro msil
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Сreating synchronization primitives
Creating a process with a hidden window
Creating a file in the %temp% directory
Launching a process
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
Enabling autorun by creating a file
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
masquerade obfuscated packed packed packer_detected vbnet
Link:
https://www.filescan.io/uploads/67feb384931404048d7f3fae/reports/e0a3a83c-b8bb-41de-a1a0-8acc8567c821/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/c6de8c6d5228fa7a6101a2cf1574d974f48d8e6caf1c862cc5004d36cf3d527b
Malware family:
Agent Tesla
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/0f4ecdc2-8528-4d2d-9bae-85de45c7e3e4
Result
Threat name:
MSIL Logger, MassLogger RAT
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1665813
Signature
.NET source code contains potential unpacker
.NET source code references suspicious native API functions
Adds a directory exclusion to Windows Defender
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Contains functionality to log keystrokes (.Net Source)
Found malware configuration
Initial sample is a PE file and has a suspicious name
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 dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: Scheduled temp file as task from temp location
Sigma detected: Suspicious Double Extension File Execution
Suricata IDS alerts for network traffic
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)
Uses an obfuscated file name to hide its real file extension (double extension)
Uses schtasks.exe or at.exe to add and modify task schedules
Uses the Telegram API (likely for C&C communication)
Yara detected AntiVM3
Yara detected MassLogger RAT
Yara detected MSIL Logger
Yara detected Telegram RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1665813 Sample: BEPZA MT103 Credit.pdf.exe Startdate: 15/04/2025 Architecture: WINDOWS Score: 100 50 reallyfreegeoip.org 2->50 52 api.telegram.org 2->52 54 2 other IPs or domains 2->54 56 Suricata IDS alerts for network traffic 2->56 58 Found malware configuration 2->58 60 Malicious sample detected (through community Yara rule) 2->60 66 17 other signatures 2->66 8 BEPZA MT103 Credit.pdf.exe 7 2->8         started        12 YEGIgzyAhkvT.exe 5 2->12         started        signatures3 62 Tries to detect the country of the analysis system (by using the IP) 50->62 64 Uses the Telegram API (likely for C&C communication) 52->64 process4 file5 36 C:\Users\user\AppData\...\YEGIgzyAhkvT.exe, PE32 8->36 dropped 38 C:\Users\...\YEGIgzyAhkvT.exe:Zone.Identifier, ASCII 8->38 dropped 40 C:\Users\user\AppData\Local\...\tmp3E23.tmp, XML 8->40 dropped 42 C:\Users\...\BEPZA MT103 Credit.pdf.exe.log, ASCII 8->42 dropped 68 Adds a directory exclusion to Windows Defender 8->68 70 Injects a PE file into a foreign processes 8->70 14 powershell.exe 23 8->14         started        17 BEPZA MT103 Credit.pdf.exe 15 2 8->17         started        20 schtasks.exe 1 8->20         started        72 Antivirus detection for dropped file 12->72 74 Multi AV Scanner detection for dropped file 12->74 22 YEGIgzyAhkvT.exe 14 2 12->22         started        24 schtasks.exe 1 12->24         started        26 YEGIgzyAhkvT.exe 12->26         started        signatures6 process7 dnsIp8 76 Loading BitLocker PowerShell Module 14->76 28 WmiPrvSE.exe 14->28         started        30 conhost.exe 14->30         started        44 checkip.dyndns.com 132.226.247.73, 49689, 49693, 80 UTMEMUS United States 17->44 46 reallyfreegeoip.org 104.21.80.1, 443, 49695, 49696 CLOUDFLARENETUS United States 17->46 32 conhost.exe 20->32         started        48 api.telegram.org 149.154.167.220, 443, 49698, 49699 TELEGRAMRU United Kingdom 22->48 78 Tries to steal Mail credentials (via file / registry access) 22->78 80 Tries to harvest and steal browser information (history, passwords, etc) 22->80 34 conhost.exe 24->34         started        signatures9 process10
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/c6de8c6d5228fa7a6101a2cf1574d974f48d8e6caf1c862cc5004d36cf3d527b
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/c6de8c6d5228fa7a6101a2cf1574d974f48d8e6caf1c862cc5004d36cf3d527b/
Threat name:
ByteCode-MSIL.Spyware.Negasteal
Create hunting rule
Status:
Suspicious
First seen:
2025-04-14 10:47:06 UTC
File Type:
PE (.Net Exe)
Extracted files:
26
AV detection:
27 of 36 (75.00%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=y3piy3ksfd5huyibulhrk5gzot2i3dtmv4oimlgfabgtntz5kj5q._file
Verdict:
malicious
Label(s):
unc_loader_037
Create hunting rule
novastealer
Create hunting rule
captiveaaloader
Create hunting rule
Similar samples:
5bc7279ce397c3817451a66277b6313a9bb5a741672988e030337278c35acddb
MassLogger
a05882d8e179d3a1a3ac69ce4b81bc72ee80f026d921e2598a5eddefd803511b
MassLogger
a219e517e4f68db96fa6c7bf2d044b991043884cb1ac1dbd5de22ec5f08ddb00
MassLogger
c6de8c6d5228fa7a6101a2cf1574d974f48d8e6caf1c862cc5004d36cf3d527b
MassLogger
cf5c68e26546d85bf7ab9d049df7da641929bdd77eb51bec61e354db25d27292
MassLogger
error
MassLogger
+ 793 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  8/10
Tags:
collection discovery execution spyware stealer
Link:
https://tria.ge/reports/250415-x6924szmy9/
Behaviour
Scheduled Task/Job: Scheduled Task
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:
404keylogger
YARA:
n/a
Link:
https://app.threat.zone/submission/ab418a17-0ad1-4577-9996-3dbc956cb8c4
Unpacked files
SH256 hash:
c6de8c6d5228fa7a6101a2cf1574d974f48d8e6caf1c862cc5004d36cf3d527b
MD5 hash:
ef4d4ab7e588827c7a17293b53a30d1f
SHA1 hash:
6e2fd3bc90fce07f121e9eb3ad94545f30773ec6
Link:
https://www.unpac.me/results/d08bcfe6-e590-4bb3-9051-64956b52081a/
SH256 hash:
1e747382a3f568ff1d08a896b44da65f6e01503f7662e975b6cae325c9487747
MD5 hash:
a6a52ebbe98e983c5f87484e198bf4e8
SHA1 hash:
0f7d0cca101f9b2c982cb3bef7638c21ebdc2e6a
Link:
https://www.unpac.me/results/d08bcfe6-e590-4bb3-9051-64956b52081a/
SH256 hash:
6e4d6ab226fd673c0ae2940432491b4419dcd559c256e94778d2e5655857b3b3
MD5 hash:
b09587d1f3bda5b1507502f66ba459d0
SHA1 hash:
8f1d33902ab40828c89021538715d259f1417207
Detections:
SUSP_OBF_NET_ConfuserEx_Name_Pattern_Jan24
Create hunting rule
SUSP_OBF_NET_Reactor_Indicators_Jan24
Create hunting rule
Link:
https://www.unpac.me/results/d08bcfe6-e590-4bb3-9051-64956b52081a/
SH256 hash:
836992505ca757663be568221c38f9d268c3dcfcb712b36e50aadf39cf1b63a5
MD5 hash:
eb3e24c137e28ba6844f75408339e3bf
SHA1 hash:
bf103be94b82d4c277d83b73a545ced09c5af443
Detections:
win_404keylogger_g1
Create hunting rule
win_masslogger_w0
Create hunting rule
MAL_Envrial_Jan18_1
Create hunting rule
INDICATOR_SUSPICIOUS_Binary_References_Browsers
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_TelegramChatBot
Create hunting rule
Link:
https://www.unpac.me/results/d08bcfe6-e590-4bb3-9051-64956b52081a/
Parent samples :
f73a1acf11bca235d9f0f22c0ba584107a76a54652e6356df080cc5ec040fc18
490cc57557d9617b7da8acc7453f39a6250d7939730d9fe99409b8f8603769ef
c67dcc3b017cde79ad535ac949ecf65f218a97d086a6ba79cc08b9b8f79c87b5
c6de8c6d5228fa7a6101a2cf1574d974f48d8e6caf1c862cc5004d36cf3d527b
ade03b33ad1a47b43d99a5eb7f469d127f98df657167c31700fd3c5cc76c522d
Malware family:
MassLogger
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/c6de8c6d5228/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/c6de8c6d5228fa7a6101a2cf1574d974f48d8e6caf1c862cc5004d36cf3d527b

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:AgentTesla_DIFF_Common_Strings_01
Create hunting rule
Author:schmidtsz
Description:Identify partial Agent Tesla strings
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

Executable exe c6de8c6d5228fa7a6101a2cf1574d974f48d8e6caf1c862cc5004d36cf3d527b

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/2370/

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
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (HIGH_ENTROPY_VA)high

Comments