MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 453e22919069356ebcdd0761b215364026ac41bbb167a590295bb50dbb30be93. 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: 9


Intelligence 9 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 453e22919069356ebcdd0761b215364026ac41bbb167a590295bb50dbb30be93
SHA3-384 hash: f1d9b7bc27bb55850a1be508030f17e376146a3d0914dabfa3e463e2b6bf4777d822fa5e290eab189fe3df02b196d83f
SHA1 hash: 9ae1ffe9af725146ad7abce05719c4cc33e698a8
MD5 hash: 3c5d12bad9d35c9d0ddf7a53c9542b35
humanhash: jig-summer-moon-juliet
File name:Reconfirm Swift Code.pdf.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:728'064 bytes
First seen:2020-08-04 06:10:55 UTC
Last seen:2020-08-04 06:44:47 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'648 x AgentTesla, 19'452 x Formbook, 12'201 x SnakeKeylogger)
ssdeep 12288:2gmxelEBhCfFVFwere+RJIPkx3Xkt6xAtQHYaVagYqNXOV+cmyr0:2xelE3QVTfRJ8t6xD4GhYqZOV+fy
Threatray 10'868 similar samples on MalwareBazaar
TLSH E8F4CE5C7BE0851AF49A0FBA9C3255429D38F80BAD1BF38F25F5122C44BA79C6C51F62
Reporter abuse_ch
Tags:AgentTesla exe


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: server.thebricspost.com
Sending IP: 64.15.138.14
From: ACCOUNTING <info@semco-ltd.com>
Subject: FWD: Reconfirm Swift Code
Attachment: Reconfirm Swift Code.pdf.r03 (contains "Reconfirm Swift Code.pdf.exe")

AgentTesla SMTP exfil server:
smtp.coffiices.com:587

Intelligence

File Origin
# of uploads :
2
# of downloads :
69
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/38150/
Detection(s):
SecuriteInfo.com.Variant.MSILPerseus.227240.26846.30025.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
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
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.adwa.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/408596
Signature
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Modifies the hosts 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)
Sigma detected: Scheduled temp file as task from temp location
Sigma detected: Suspicious Double Extension
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)
Uses an obfuscated file name to hide its real file extension (double extension)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AgentTesla
Yara detected AntiVM_3
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 256532 Sample: Reconfirm Swift Code.pdf.exe Startdate: 04/08/2020 Architecture: WINDOWS Score: 100 71 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->71 73 Found malware configuration 2->73 75 Sigma detected: Scheduled temp file as task from temp location 2->75 77 9 other signatures 2->77 8 goICPG.exe 3 2->8         started        11 Reconfirm Swift Code.pdf.exe 7 2->11         started        14 goICPG.exe 2 2->14         started        process3 file4 79 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 8->79 81 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 8->81 83 Injects a PE file into a foreign processes 8->83 85 Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent) 8->85 16 goICPG.exe 8->16         started        47 C:\Users\user\AppData\Local\...\tmpFE76.tmp, XML 11->47 dropped 49 C:\Users\user\AppData\...\&startupname&.exe, PE32 11->49 dropped 20 Reconfirm Swift Code.pdf.exe 2 5 11->20         started        23 schtasks.exe 1 11->23         started        25 Reconfirm Swift Code.pdf.exe 11->25         started        29 2 other processes 11->29 27 goICPG.exe 14->27         started        signatures5 process6 dnsIp7 51 208.91.198.143, 49748, 587 PUBLIC-DOMAIN-REGISTRYUS United States 16->51 53 smtp.coffiices.com 16->53 59 Tries to harvest and steal ftp login credentials 16->59 61 Tries to harvest and steal browser information (history, passwords, etc) 16->61 63 Hides that the sample has been downloaded from the Internet (zone.identifier) 16->63 31 reg.exe 16->31         started        55 smtp.coffiices.com 20->55 57 us2.smtp.mailhostbox.com 208.91.199.224, 49747, 587 PUBLIC-DOMAIN-REGISTRYUS United States 20->57 41 C:\Users\user\AppData\Roaming\...\goICPG.exe, PE32 20->41 dropped 43 C:\Windows\System32\drivers\etc\hosts, ASCII 20->43 dropped 45 C:\Users\user\...\goICPG.exe:Zone.Identifier, ASCII 20->45 dropped 65 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 20->65 67 Tries to steal Mail credentials (via file access) 20->67 69 Modifies the hosts file 20->69 33 reg.exe 20->33         started        35 conhost.exe 23->35         started        file8 signatures9 process10 process11 37 conhost.exe 31->37         started        39 conhost.exe 33->39         started       
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/453e22919069356ebcdd0761b215364026ac41bbb167a590295bb50dbb30be93/
Threat name:
ByteCode-MSIL.Trojan.Kryptik
Create hunting rule
Status:
Malicious
First seen:
2020-08-04 06:12:09 UTC
AV detection:
22 of 29 (75.86%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=iu7cfemqne2w5pg5a5q3efjwiatkyqn3wft2lebjlo2q3ozqx2jq._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
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AgentTesla
+ 10'858 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
keylogger stealer persistence spyware trojan family:agenttesla
Link:
https://tria.ge/reports/200804-kyx6jaestx/
Behaviour
Suspicious use of AdjustPrivilegeToken
Creates scheduled task(s)
Modifies registry key
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Adds Run key to start application
Reads user/profile data of web browsers
Reads user/profile data of local email clients
Reads data files stored by FTP clients
Drops file in Drivers directory
AgentTesla Payload
AgentTesla
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Kryptik
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/453e22919069356ebcdd0761b215364026ac41bbb167a590295bb50dbb30be93

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

r03 27e1ae7639a58a54ce8ee5baf13d60581a06434d864315203165deb0e04a3d1f

AgentTesla

Executable exe 453e22919069356ebcdd0761b215364026ac41bbb167a590295bb50dbb30be93

(this sample)

  
Dropped by
MD5 15c7de52d8c00582be35201bbae631da
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/38150/
  
Dropped by
SHA256 27e1ae7639a58a54ce8ee5baf13d60581a06434d864315203165deb0e04a3d1f

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