MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 04538fa6efd1de9c1eb97acc72b3ce8f5625ab5a9e41c7eb7c9d753ccbb7881e. 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: 10


Intelligence 10 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 04538fa6efd1de9c1eb97acc72b3ce8f5625ab5a9e41c7eb7c9d753ccbb7881e
SHA3-384 hash: 71a3ca96f372270fc66154ac98c40c4e758648586c669ed6b3ffed22aed58dfa3805c3c13147353adc83e3c6f6e83387
SHA1 hash: 250e0564bc343760d24d8c56c73349f261e6e5a2
MD5 hash: 154d76c8e25f6677c320b9a8b871c7db
humanhash: alanine-monkey-kilo-fanta
File name:Drawings-ESS316.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:903'680 bytes
First seen:2021-06-01 08:05:51 UTC
Last seen:2021-06-01 13:12:17 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'742 x AgentTesla, 19'607 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 12288:dg8kAJVrhvT3fVGfRQnpvi765MUwCnrfPHSBYuoqmGn+b5K+PHgPEi+EsV5DmPiY:dg8JVrM765x1rf2tv+dPHri+Es/h53
Threatray 5'461 similar samples on MalwareBazaar
TLSH B8157CF4F0589AB2C18DD732CBA1DDAAEB6116FD52034D1D29B9EA8C1B4378F8F48445
Reporter cocaman
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
4
# of downloads :
139
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Drawings-ESS316.exe
Verdict:
Suspicious activity
Analysis date:
2021-06-01 08:09:57 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/b3010e84-cc37-45d7-b3fe-9a5ddb67c9cb

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/163744/
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.791.24710.2176.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a custom TCP request
Sending a UDP request
Result
Verdict:
UNKNOWN
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/795090
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains very large array initializations
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects a PE file into a foreign processes
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines)
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
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 harvest and steal ftp login credentials
Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Tries to steal Mail credentials (via file access)
Yara detected AgentTesla
Yara detected AntiVM3
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 427487 Sample: Drawings-ESS316.exe Startdate: 01/06/2021 Architecture: WINDOWS Score: 100 41 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->41 43 Found malware configuration 2->43 45 Multi AV Scanner detection for submitted file 2->45 47 6 other signatures 2->47 6 Drawings-ESS316.exe 3 2->6         started        10 ifeapp.exe 3 2->10         started        12 ifeapp.exe 2 2->12         started        process3 file4 23 C:\Users\user\...\Drawings-ESS316.exe.log, ASCII 6->23 dropped 49 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 6->49 51 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 6->51 53 Injects a PE file into a foreign processes 6->53 14 Drawings-ESS316.exe 2 9 6->14         started        55 Multi AV Scanner detection for dropped file 10->55 19 ifeapp.exe 2 10->19         started        21 ifeapp.exe 2 12->21         started        signatures5 process6 dnsIp7 29 ireneoptik.ro 89.42.218.245, 49730, 49731, 587 ROMARGRO Romania 14->29 31 192.168.2.1 unknown unknown 14->31 25 C:\Users\user\AppData\Roaming\...\ifeapp.exe, PE32 14->25 dropped 27 C:\Users\user\...\ifeapp.exe:Zone.Identifier, ASCII 14->27 dropped 33 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 14->33 35 Tries to steal Mail credentials (via file access) 14->35 37 Tries to harvest and steal ftp login credentials 14->37 39 2 other signatures 14->39 file8 signatures9
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/04538fa6efd1de9c1eb97acc72b3ce8f5625ab5a9e41c7eb7c9d753ccbb7881e/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-06-01 07:32:33 UTC
File Type:
PE (.Net Exe)
Extracted files:
9
AV detection:
11 of 44 (25.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=arjy7jxp2hpjyhvzplghfm6or5lclk22tza4p234tv2tzs5xrapa._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
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9bc678c39c87021ed3ad959283499e49679da53068017e1410580cd18b58054c
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bb9f48fe7b24ee1d6bdb487bcecba20ebf6d5b36371726d889b997c0b34a6dbd
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bd2b74e08fad018b100e51f29b67beb001afac1b243e73f4180d22879d86c639
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ca5ec53a9f7a0ab143fbfa164c2f14819af890c622472ea3f20e27a44d291491
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fca23df949c7e10b76b320bdd3b2d3179855ecde575abad628caf4aeb647d3f7
AgentTesla
+ 5'451 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla keylogger persistence spyware stealer trojan
Link:
https://tria.ge/reports/210601-2ep5pfasd2/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Adds Run key to start application
AgentTesla Payload
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/04538fa6efd1de9c1eb97acc72b3ce8f5625ab5a9e41c7eb7c9d753ccbb7881e

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:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

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

Malspam

AgentTesla

rar fb40105a8b3b3f4d5d46bcc2f89baadc42b5ea605a3b156621d92a4ffdb3996c

AgentTesla

Executable exe 04538fa6efd1de9c1eb97acc72b3ce8f5625ab5a9e41c7eb7c9d753ccbb7881e

(this sample)

  
Delivery method
Other
  
Dropped by
SHA256 fb40105a8b3b3f4d5d46bcc2f89baadc42b5ea605a3b156621d92a4ffdb3996c
Cape
Cape
https://www.capesandbox.com/analysis/163744/

Comments