MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 edefb92e5128b8548482615f2d8a1728557e0a076ceb73b293b7d95333c193f9. 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 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: edefb92e5128b8548482615f2d8a1728557e0a076ceb73b293b7d95333c193f9
SHA3-384 hash: 017e67dd4e714a84d9b0c5910d6134bf50f6beecea9f5a42dc7373b3be60c9169238428fe53785c0b4c2430946e80f71
SHA1 hash: 29857fb55ff08561b4d2a9b91c8c1074151cc2de
MD5 hash: 78c1384ca3d0943fc272bda41489fa80
humanhash: ack-nuts-hydrogen-early
File name:ib.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:361'472 bytes
First seen:2020-07-21 06:09:39 UTC
Last seen:2020-07-21 07:24:31 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'748 x AgentTesla, 19'652 x Formbook, 12'246 x SnakeKeylogger)
ssdeep 6144:ZSicOATcKBwUAMdCiZSWTglC4Si4qlJZeO1V2UUaVSFcJO9vmGGwY:ZkVZAEGpSiRN1Vjc8s
Threatray 10'679 similar samples on MalwareBazaar
TLSH 067402142BD857ADE6BE8BB244E1414283F9BF195923F66CECC89C9F165371041A3BB3
Reporter abuse_ch
Tags:AgentTesla exe


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: mo4-p04-ob.smtp.rzone.de
Sending IP: 85.215.255.122
From: Alex Kind <alex@o1group.nl>
Subject: RFQ
Attachment: RFQ-02-ORDER.xlsm

AgentTesla payload URL:
http://mail.zanello.adv.br/wordpress/wp-includes/1a/ib.exe

AgentTesla SMTP exfil server:
mail.totallyanonymous.com:587

Intelligence

File Origin
# of uploads :
2
# of downloads :
67
Origin country :
n/a
Vendor Threat Intelligence
Detection:
AgentTeslaV2
Create hunting rule
Link:
https://www.capesandbox.com/analysis/29683/
Detection(s):
SecuriteInfo.com.MSIL.Kryptik.WYH.29017.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Creating a file in the %temp% directory
Launching a process
Creating a process with a hidden window
Deleting a recently created file
Unauthorized injection to a recently created process
Creating a file
Using the Windows Management Instrumentation requests
Enabling autorun with Startup directory
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/392450
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 248394 Sample: ib.exe Startdate: 21/07/2020 Architecture: WINDOWS Score: 100 29 Found malware configuration 2->29 31 Multi AV Scanner detection for dropped file 2->31 33 Sigma detected: Scheduled temp file as task from temp location 2->33 35 6 other signatures 2->35 7 ib.exe 5 2->7         started        process3 file4 19 C:\Users\user\AppData\Roaming\saHTAuCg.exe, PE32 7->19 dropped 21 C:\Users\...\saHTAuCg.exe:Zone.Identifier, ASCII 7->21 dropped 23 C:\Users\user\AppData\Local\...\tmpF715.tmp, XML 7->23 dropped 25 C:\Users\user\AppData\Local\...\ib.exe.log, ASCII 7->25 dropped 37 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 7->37 39 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 7->39 41 Contains functionality to register a low level keyboard hook 7->41 43 Injects a PE file into a foreign processes 7->43 11 ib.exe 2 7->11         started        15 schtasks.exe 1 7->15         started        signatures5 process6 dnsIp7 27 mail.totallyanonymous.com 212.1.212.239, 49720, 587 AS-HOSTINGERLT United States 11->27 45 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 11->45 47 Tries to steal Mail credentials (via file access) 11->47 49 Tries to harvest and steal ftp login credentials 11->49 51 2 other signatures 11->51 17 conhost.exe 15->17         started        signatures8 process9
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/edefb92e5128b8548482615f2d8a1728557e0a076ceb73b293b7d95333c193f9/
Threat name:
ByteCode-MSIL.Trojan.Kryptik
Create hunting rule
Status:
Malicious
First seen:
2020-07-21 06:11:04 UTC
AV detection:
23 of 29 (79.31%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=5xx3slsrfc4fjbecmfps3cqxfbkx4cqhntvxhmutw7mvgm6bsp4q._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
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AgentTesla
+ 10'669 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
keylogger trojan stealer spyware family:agenttesla
Link:
https://tria.ge/reports/200721-w5ry81smps/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of SetWindowsHookEx
Creates scheduled task(s)
Suspicious use of WriteProcessMemory
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetThreadContext
Reads user/profile data of web browsers
Reads user/profile data of local email clients
Reads data files stored by FTP clients
AgentTesla
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Unknown
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/edefb92e5128b8548482615f2d8a1728557e0a076ceb73b293b7d95333c193f9

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_type2
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Agenttesla in memory
Reference:internal research
Rule name:CAP_HookExKeylogger
Create hunting rule
Author:Brian C. Bell -- @biebsmalwareguy
Reference:https://github.com/DFIRnotes/rules/blob/master/CAP_HookExKeylogger.yar
Rule name:win_agent_tesla_w1
Create hunting rule
Author:govcert_ch
Description:Detect Agent Tesla based on common .NET code sequences

File information

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

Malspam

AgentTesla

Excel file xlsm 5162d67fe571a80e9b1dc7683a99b491d09e512639a09f853caec76a9861abe6

AgentTesla

Executable exe edefb92e5128b8548482615f2d8a1728557e0a076ceb73b293b7d95333c193f9

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/415747/
  
Dropped by
MD5 4e777e79157f87ee0ba9cb80e4f8fcda
  
Dropped by
SHA256 5162d67fe571a80e9b1dc7683a99b491d09e512639a09f853caec76a9861abe6
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/29683/

Comments