MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a71764497b51d851d5e78d8ab520136e8d93de16184985a1715154254948b94e. 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


AgentTesla


Vendor detections: 8


Intelligence 8 IOCs YARA 1 File information Comments
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SHA256 hash: a71764497b51d851d5e78d8ab520136e8d93de16184985a1715154254948b94e
SHA3-384 hash: 8b367e24614151c5e2259d24e82ec876f80384056a2dcf18544e1d303e52f5a09ce20b2feaf9b5402ebe9eeeee02c394
SHA1 hash: 9e82187f9ab6bab400922db052a6255bebbaff58
MD5 hash: 3c15dccde5b68769c3fc13c66477bd21
humanhash: emma-texas-oklahoma-oregon
File name:ISS.vbs
Download: download sample
Signature AgentTesla
Create hunting rule
File size:186'744 bytes
First seen:2023-10-09 20:02:32 UTC
Last seen:Never
File type:Visual Basic Script (vbs) vbs
MIME type:text/plain
ssdeep 3072:RoiiiiiXcOlGlbFiiiiiTiiiii2rssJltiiiiiniiiiiuiiiiiEYtsiiiii5XKi6:KiiiiiXcOlGlxiiiiiTiiiii2rssJltm
Threatray 309 similar samples on MalwareBazaar
TLSH T19C047C1036FE9058B1733E535BF97AE94FAFFBA6562A909D7400130A9B72D80CD61732
TrID 66.6% (.TXT) Text - UTF-16 (LE) encoded (2000/1)
33.3% (.MP3) MP3 audio (1000/1)
Reporter James_inthe_box
Tags:AgentTesla vbs

Intelligence

File Origin
# of uploads :
1
# of downloads :
124
Origin country :
US US
Vendor Threat Intelligence
Detection(s):
SecuriteInfo.com.HEUR.Trojan.Script.Generic.31313.19528.UNOFFICIAL
Create hunting rule

Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
sload
Link:
https://www.filescan.io/uploads/65245c76426c8727d6f63d34/reports/8d72c762-d666-4a89-95f3-538baaf12944/overview
Verdict:
Unknown
Link:
https://www.hybrid-analysis.com/sample/a71764497b51d851d5e78d8ab520136e8d93de16184985a1715154254948b94e
Result
Verdict:
MALICIOUS
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
spre.troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1322422
Signature
Antivirus detection for URL or domain
Bypasses PowerShell execution policy
Contains functionality to log keystrokes (.Net Source)
Contains functionality to register a low level keyboard hook
Found malware configuration
Found suspicious powershell code related to unpacking or dynamic code loading
Injects a PE file into a foreign processes
Installs a global keyboard hook
Malicious sample detected (through community Yara rule)
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
Sample uses string decryption to hide its real strings
Sigma detected: Powershell download and load assembly
Sigma detected: RegAsm connects to smtp port
Suspicious powershell command line found
Tries to harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
VBScript performs obfuscated calls to suspicious functions
Very long command line found
Windows Scripting host queries suspicious COM object (likely to drop second stage)
Writes to foreign memory regions
Wscript starts Powershell (via cmd or directly)
Yara detected AgentTesla
Yara detected Generic Downloader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1322422 Sample: ISS.vbs Startdate: 09/10/2023 Architecture: WINDOWS Score: 100 25 uploaddeimagens.com.br 2->25 27 mail.awelleh3.top 2->27 29 3 other IPs or domains 2->29 43 Found malware configuration 2->43 45 Malicious sample detected (through community Yara rule) 2->45 47 Antivirus detection for URL or domain 2->47 49 6 other signatures 2->49 9 wscript.exe 1 2->9         started        signatures3 process4 signatures5 59 VBScript performs obfuscated calls to suspicious functions 9->59 61 Suspicious powershell command line found 9->61 63 Wscript starts Powershell (via cmd or directly) 9->63 65 3 other signatures 9->65 12 powershell.exe 7 9->12         started        process6 signatures7 67 Suspicious powershell command line found 12->67 69 Found suspicious powershell code related to unpacking or dynamic code loading 12->69 15 powershell.exe 14 13 12->15         started        19 conhost.exe 12->19         started        process8 dnsIp9 35 uploaddeimagens.com.br 104.21.45.138, 443, 49739 CLOUDFLARENETUS United States 15->35 37 94.156.161.167, 49740, 80 NET1-ASBG Bulgaria 15->37 39 Writes to foreign memory regions 15->39 41 Injects a PE file into a foreign processes 15->41 21 RegAsm.exe 15 2 15->21         started        signatures10 process11 dnsIp12 31 awelleh3.top 185.198.59.26, 49742, 587 HSAE Netherlands 21->31 33 api4.ipify.org 104.237.62.212, 443, 49741 WEBNXUS United States 21->33 51 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 21->51 53 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 21->53 55 Tries to steal Mail credentials (via file / registry access) 21->55 57 3 other signatures 21->57 signatures13
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a71764497b51d851d5e78d8ab520136e8d93de16184985a1715154254948b94e/
Threat name:
Script-WScript.Malware.Heuristic
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Status:
Malicious
First seen:
2023-10-09 20:02:30 UTC
File Type:
Text (VBS)
AV detection:
1 of 24 (4.17%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=u4lwisl3khmfdvphrwflkiatn2gzhxqwdbeylilrkfkckskixfha._file
Verdict:
malicious
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AgentTesla
+ 299 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  10/10
Tags:
n/a
Link:
https://tria.ge/reports/231009-ysngmaga6y/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Checks computer location settings
Blocklisted process makes network request
Malware Config
Dropper Extraction:
https://uploaddeimagens.com.br/images/004/616/609/original/rump_vbs.jpg?1695408937
Malware family:
AgentTesla.v4
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Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/a71764497b51/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.05
Link:
https://yomi.yoroi.company/submissions/a71764497b51d851d5e78d8ab520136e8d93de16184985a1715154254948b94e

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:SUSP_VBS_Wscript_Shell
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Author:SECUINFRA Falcon Team
Description:Detects the definition of 'Wscript.Shell' which is often used by Malware, FPs are possible and commmon

File information

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

  
Delivery method
Other

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