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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b40e280b2cae0fbc5fbe7f84380aee32f0a34c2927749d3f2f53ce6e55c78c23. 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: 11


Intelligence 11 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b40e280b2cae0fbc5fbe7f84380aee32f0a34c2927749d3f2f53ce6e55c78c23
SHA3-384 hash: fdcde85600dc4e035ec7fbda9d7324f687fe683c5e045cbfc1438e22ce3873703a007db26b01d285935c054cdc841390
SHA1 hash: 0ec98c7717f2bfa795b6dda425c7431c147e2c14
MD5 hash: 79be00660f09bc6fa45108de98631abe
humanhash: oscar-white-sink-triple
File name:MAN250115028.js
Download: download sample
Signature AgentTesla
Create hunting rule
File size:704'531 bytes
First seen:2026-10-05 08:56:06 UTC
Last seen:Never
File type:Java Script (JS) js
MIME type:text/plain
ssdeep 12288:u96bMi0svLi7WHmyYWCZ9cpptIuH7WJRqH6kP8znecUctYWFxaGW4PH8EJmE:ai00Li7WGyYUtIuCzxiGnnPH8E7
TLSH T148E4E01A8201D4A0C46E9A57C75F7E0959F042F5D62DFA8C417CE2832FDAE62C7EBC85
Magika batch
Reporter abuse_ch
Tags:AgentTesla js

Intelligence

File Origin
# of uploads :
1
# of downloads :
162
Origin country :
SE SE
Vendor Threat Intelligence
No detections
Detection(s):
SecuriteInfo.com.Other.Malware-gen.17292572.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
attrib evasive obfuscated powershell repaired
Link:
https://www.filescan.io/uploads/6ac3663de5d8e15c02a8a098/reports/f8d16dca-22c9-4fb3-91e3-4ba65dc64fc1/overview
Verdict:
Malicious
Labled as:
JS/Obfuscated.CT trojan
Link:
https://www.hybrid-analysis.com/sample/b40e280b2cae0fbc5fbe7f84380aee32f0a34c2927749d3f2f53ce6e55c78c23
Verdict:
Malicious
File Type:
js
First seen:
2026-10-04T20:07:00Z UTC
Last seen:
2026-10-07T07:38:00Z UTC
Hits:
~1000
Link:
https://opentip.kaspersky.com/b40e280b2cae0fbc5fbe7f84380aee32f0a34c2927749d3f2f53ce6e55c78c23/results?tab=lookup
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1982259
Signature
Check if machine is in data center or colocation facility
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Contains functionality to log keystrokes (.Net Source)
Creates an autostart registry key pointing to binary in C:\Windows
Creates processes via WMI
Found malware configuration
Found suspicious powershell code related to unpacking or dynamic code loading
Joe Sandbox ML detected suspicious sample
JScript performs obfuscated calls to suspicious functions
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Multi AV Scanner detection for submitted file
Overwrites code with unconditional jumps - possibly settings hooks in foreign process
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Queues an APC in another process (thread injection)
Sigma detected: Invoke-Obfuscation Via Stdin
Sigma detected: Potential PowerShell Command Line Obfuscation
Sigma detected: Potential WinAPI Calls Via CommandLine
Sigma detected: Powershell launch wmic via class
Sigma detected: WScript or CScript Dropper
Suricata IDS alerts for network traffic
Suspicious execution chain found
Suspicious powershell command line found
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Unusual module load detection (module proxying)
Uses attrib.exe to hide files
Uses cmd line tools excessively to alter registry or file data
Windows Scripting host queries suspicious COM object (likely to drop second stage)
Writes to foreign memory regions
WScript reads language and country specific registry keys (likely country aware script)
Wscript starts Powershell (via cmd or directly)
Yara detected AgentTesla
Yara detected Powershell decode and execute
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1982259 Sample: MAN250115028.js Startdate: 05/10/2026 Architecture: WINDOWS Score: 100 86 ip-api.com 2->86 94 Sigma detected: Powershell launch wmic via class 2->94 96 Suricata IDS alerts for network traffic 2->96 98 Found malware configuration 2->98 100 11 other signatures 2->100 12 wscript.exe 1 1 2->12         started        15 cmd.exe 2->15         started        17 svchost.exe 1 1 2->17         started        signatures3 process4 dnsIp5 128 JScript performs obfuscated calls to suspicious functions 12->128 130 Wscript starts Powershell (via cmd or directly) 12->130 132 Windows Scripting host queries suspicious COM object (likely to drop second stage) 12->132 138 2 other signatures 12->138 20 cmd.exe 1 12->20         started        23 powershell.exe 8 12->23         started        134 Suspicious powershell command line found 15->134 136 Uses cmd line tools excessively to alter registry or file data 15->136 26 powershell.exe 15->26         started        28 attrib.exe 15->28         started        30 attrib.exe 15->30         started        84 127.0.0.1 unknown unknown 17->84 signatures6 process7 file8 102 Suspicious powershell command line found 20->102 104 Wscript starts Powershell (via cmd or directly) 20->104 106 Uses cmd line tools excessively to alter registry or file data 20->106 108 Uses attrib.exe to hide files 20->108 32 powershell.exe 20->32         started        34 powershell.exe 15 20->34         started        36 conhost.exe 20->36         started        38 attrib.exe 20->38         started        76 C:\Users\user\AppData\...\16325135041499.cmd, ASCII 23->76 dropped 110 Found suspicious powershell code related to unpacking or dynamic code loading 23->110 112 Creates processes via WMI 23->112 40 conhost.exe 23->40         started        42 cmd.exe 26->42         started        signatures9 process10 signatures11 45 powershell.exe 1 44 32->45         started        126 Wscript starts Powershell (via cmd or directly) 42->126 49 powershell.exe 42->49         started        51 conhost.exe 42->51         started        53 powershell.exe 42->53         started        process12 file13 78 C:\Users\user\...\clr_usage_YFZDMNJD.cmd, ASCII 45->78 dropped 80 C:\Users\user\...\clr_usage_UOWMWXOOh.cmd, DOS 45->80 dropped 82 C:\Users\user\AppData\Local\...\clr_usage.cfg, ASCII 45->82 dropped 140 Overwrites code with unconditional jumps - possibly settings hooks in foreign process 45->140 142 Creates an autostart registry key pointing to binary in C:\Windows 45->142 144 Writes to foreign memory regions 45->144 146 3 other signatures 45->146 55 choice.exe 45->55         started        59 conhost.exe 45->59         started        61 powershell.exe 49->61         started        signatures14 process15 dnsIp16 88 ip-api.com 208.95.112.1, 49712, 49714, 80 TUT-AS-TotalUptimeTechnologiesLLCUS United States 55->88 114 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 55->114 116 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 55->116 118 Tries to steal Mail credentials (via file / registry access) 55->118 124 3 other signatures 55->124 63 conhost.exe 55->63         started        120 Overwrites code with unconditional jumps - possibly settings hooks in foreign process 61->120 122 Maps a DLL or memory area into another process 61->122 65 choice.exe 61->65         started        68 choice.exe 61->68         started        70 conhost.exe 61->70         started        signatures17 process18 signatures19 90 Tries to steal Mail credentials (via file / registry access) 65->90 92 Tries to harvest and steal browser information (history, passwords, etc) 65->92 72 conhost.exe 65->72         started        74 conhost.exe 68->74         started        process20
Score:
98%
Verdict:
Malware
File Type:
SCRIPT
Link:
https://malprob.io/report/b40e280b2cae0fbc5fbe7f84380aee32f0a34c2927749d3f2f53ce6e55c78c23
Verdict:
inconclusive
YARA:
1 match(es)
Tags:
PowerShell T1059.001
Link:
https://app.malva.re/file/79be00660f09bc6fa45108de98631abe
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/b40e280b2cae0fbc5fbe7f84380aee32f0a34c2927749d3f2f53ce6e55c78c23/
Threat name:
Win32.Trojan.Malgent
Create hunting rule
Status:
Malicious
First seen:
2026-10-04 23:06:18 UTC
File Type:
Text (Batch)
AV detection:
11 of 24 (45.83%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=wqhcqczmvyh3yx56p6cdqcxoglykgtbje52j2pzpkphg4vohrqrq._file
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla collection defense_evasion discovery execution keylogger persistence privilege_escalation spyware stealer trojan
Link:
https://tria.ge/reports/261005-kv7rdssvhs/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Views/modifies file attributes
outlook_office_path
Command and Scripting Interpreter: JavaScript
Command and Scripting Interpreter: PowerShell
Enumerates physical storage devices
Program crash
System Location Discovery: System Language Discovery
Hide Artifacts: Hidden Files and Directories
Accesses Microsoft Outlook profiles
Adds Run key to start application
Enumerates connected drives
Looks up external IP address via web service
Checks computer location settings
Family: AgentTesla
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/b40e280b2cae0fbc5fbe7f84380aee32f0a34c2927749d3f2f53ce6e55c78c23

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:CP_Script_Inject_Detector
Create hunting rule
Author:DiegoAnalytics
Description:Detects attempts to inject code into another process across PE, ELF, Mach-O binaries
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

File information

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

Comments