MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4c753d4c900f614b1ae03309d3b319bb4081c9628dc3f61a9dee7e16e023e1ba. 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: 9


Intelligence 9 IOCs YARA 1 File information Comments
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SHA256 hash: 4c753d4c900f614b1ae03309d3b319bb4081c9628dc3f61a9dee7e16e023e1ba
SHA3-384 hash: 508c34d6135cd473cfa5c756eef95af6595920e3bb0ff84f4915c0fe70b96eaa09c2338352a4454cee62fb85493e61e5
SHA1 hash: d4407efd918a7d6fa1c889a224f9c2dcc781d884
MD5 hash: 04f4778050980e5ff264394cfe168ee8
humanhash: yellow-alanine-six-march
File name:Artículos de cotización.vbs
Download: download sample
Signature MassLogger
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File size:93'883 bytes
First seen:2025-03-25 16:45:43 UTC
Last seen:Never
File type:Visual Basic Script (vbs) vbs
MIME type:text/plain
ssdeep 1536:QOCZkbmEKUgXEXzICKUnFo7/I+C9bGWzbWojhPhlSi7xtoyGVOlKIWlhx5jFKV3w:77Hfk/I+AzbhPhRroyGolKNhd8shj
Threatray 759 similar samples on MalwareBazaar
TLSH T19A93F5FDC7E1ADD00B2AB0F3662C3F02149C8753A7B56E7DF6C4093E24E1644A6B9588
Magika vba
Reporter abuse_ch
Tags:MassLogger vbs

Intelligence

File Origin
# of uploads :
1
# of downloads :
87
Origin country :
NL NL
Vendor Threat Intelligence
Detection(s):
SecuriteInfo.com.Trojan-Downloader.VBS.Agent.32595.10891.UNOFFICIAL
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Verdict:
Malicious
Score:
94.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67e2dde3cb6d38a89f3e06d3
Tags:
obfuscate autorun xtreme sage
Verdict:
Unknown
Link:
https://www.hybrid-analysis.com/sample/4c753d4c900f614b1ae03309d3b319bb4081c9628dc3f61a9dee7e16e023e1ba
Result
Verdict:
MALICIOUS
Result
Threat name:
Batch Injector, MSIL Logger, MassLogger
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Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1648294
Signature
.NET source code contains a sample name check
.NET source code contains potential unpacker
.NET source code references suspicious native API functions
Bypasses PowerShell execution policy
Contains functionality to log keystrokes (.Net Source)
Found malware configuration
Found suspicious powershell code related to unpacking or dynamic code loading
Joe Sandbox ML detected suspicious sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sigma detected: Base64 Encoded PowerShell Command Detected
Sigma detected: Drops script at startup location
Sigma detected: Malicious Base64 Encoded PowerShell Keywords in Command Lines
Sigma detected: PowerShell Base64 Encoded FromBase64String Cmdlet
Sigma detected: PowerShell Base64 Encoded Invoke Keyword
Sigma detected: Suspicious PowerShell Parameter Substring
Sigma detected: WScript or CScript Dropper
Suspicious execution chain found
Suspicious powershell command line found
Tries to detect the country of the analysis system (by using the IP)
Tries to harvest and steal browser information (history, passwords, etc)
VBScript performs obfuscated calls to suspicious functions
Windows Scripting host queries suspicious COM object (likely to drop second stage)
Wscript starts Powershell (via cmd or directly)
Yara detected Batch Injector
Yara detected MassLogger RAT
Yara detected MSIL Logger
Yara detected Powershell decode and execute
Yara detected Telegram RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1648294 Sample: Art#U00edculos de cotizaci#... Startdate: 25/03/2025 Architecture: WINDOWS Score: 100 69 reallyfreegeoip.org 2->69 71 checkip.dyndns.org 2->71 73 checkip.dyndns.com 2->73 79 Found malware configuration 2->79 81 Malicious sample detected (through community Yara rule) 2->81 83 Multi AV Scanner detection for submitted file 2->83 87 17 other signatures 2->87 9 wscript.exe 2 2->9         started        13 cmd.exe 2->13         started        15 cmd.exe 1 2->15         started        17 7 other processes 2->17 signatures3 85 Tries to detect the country of the analysis system (by using the IP) 69->85 process4 file5 65 C:\Users\user\AppData\...\temp_script.bat, ASCII 9->65 dropped 101 VBScript performs obfuscated calls to suspicious functions 9->101 103 Wscript starts Powershell (via cmd or directly) 9->103 105 Windows Scripting host queries suspicious COM object (likely to drop second stage) 9->105 107 Suspicious execution chain found 9->107 19 cmd.exe 1 9->19         started        22 cmd.exe 13->22         started        24 conhost.exe 13->24         started        26 cmd.exe 1 15->26         started        28 conhost.exe 15->28         started        30 cmd.exe 1 17->30         started        32 cmd.exe 1 17->32         started        34 cmd.exe 1 17->34         started        36 11 other processes 17->36 signatures6 process7 signatures8 89 Suspicious powershell command line found 19->89 91 Wscript starts Powershell (via cmd or directly) 19->91 93 Bypasses PowerShell execution policy 19->93 38 cmd.exe 2 19->38         started        41 conhost.exe 19->41         started        43 powershell.exe 22->43         started        45 conhost.exe 22->45         started        47 2 other processes 26->47 50 2 other processes 30->50 52 2 other processes 32->52 54 2 other processes 34->54 56 8 other processes 36->56 process9 dnsIp10 95 Suspicious powershell command line found 38->95 97 Wscript starts Powershell (via cmd or directly) 38->97 58 powershell.exe 15 19 38->58         started        63 conhost.exe 38->63         started        99 Tries to harvest and steal browser information (history, passwords, etc) 43->99 77 checkip.dyndns.com 158.101.44.242, 49685, 49686, 49691 ORACLE-BMC-31898US United States 47->77 signatures11 process12 dnsIp13 75 reallyfreegeoip.org 104.21.112.1, 443, 49687, 49688 CLOUDFLARENETUS United States 58->75 67 C:\Users\user\...\StartupScript_f3f81b44.cmd, ASCII 58->67 dropped 109 Found suspicious powershell code related to unpacking or dynamic code loading 58->109 file14 signatures15
Score:
100%
Verdict:
Malware
File Type:
SCRIPT
Link:
https://malprob.io/report/4c753d4c900f614b1ae03309d3b319bb4081c9628dc3f61a9dee7e16e023e1ba
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/4c753d4c900f614b1ae03309d3b319bb4081c9628dc3f61a9dee7e16e023e1ba/
Threat name:
Win32.Trojan.Znyonm
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Status:
Malicious
First seen:
2025-03-25 16:46:23 UTC
File Type:
Text (VBS)
AV detection:
8 of 24 (33.33%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=jr2t2teqb5quwgxagme5hmyzxnaidslcrxb7mgu55z7bnybd4g5a._file
Verdict:
malicious
Label(s):
novastealer
Create hunting rule
Similar samples:
2a55ad3e88306641e6aa9b88c840b384bafe103445c5c5f44cf1f4c1648c894f
MassLogger
360ca290783e8135d794a7e5952a7b5a964cfad8a202438468aad9512d76afc9
MassLogger
5981ad3b28c03107c09d9f076333ff11dcb9ac2625549ff70fe27d5741070170
MassLogger
b8ceae46f1e55b2cdcbb4a5681e4ec73dc2e3981b79cc7d4097a48e38a835467
MassLogger
d1bd52996d15f124682fc7c59f4a70d7b54f5a89919f8de36f09fe0efc51eb5c
MassLogger
error
MassLogger
fbb23eda9bc927cc72810831dde3e28ef4baffddc7f28ee016c1e6ccc133a275
MassLogger
+ 749 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  8/10
Tags:
collection discovery execution
Link:
https://tria.ge/reports/250325-t96bjsyygs/
Behaviour
Suspicious behavior: CmdExeWriteProcessMemorySpam
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
Accesses Microsoft Outlook profiles
Looks up external IP address via web service
Checks computer location settings
Drops startup file
Blocklisted process makes network request
Command and Scripting Interpreter: PowerShell
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/4c753d4c900f614b1ae03309d3b319bb4081c9628dc3f61a9dee7e16e023e1ba

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:Base64_Encoded_Powershell_Directives
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File information

The table below shows additional information about this malware sample such as delivery method and external references.

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