MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 677c3ed89ae8bde6abe34f5982e3ccd9f56092058ecf38ef6c269aa27db724fb. 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: 677c3ed89ae8bde6abe34f5982e3ccd9f56092058ecf38ef6c269aa27db724fb
SHA3-384 hash: 918e568e98bd7cbdd9b883cf3839d38040b0f853665c73ab52ef2d2560e6054542c270e1924a5b9513f330ded3261214
SHA1 hash: 2d5f69a2c429b6b6839ec287d9ae504faea48ba2
MD5 hash: a313715a67912e72f42be5a0bbb08026
humanhash: steak-colorado-mountain-island
File name:sElectronic Flight Ticket Booking Payment Confirmation XXXX7383929837 Debit BNC9929302.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:753'152 bytes
First seen:2020-08-31 08:30:09 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'462 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:kT7l/zsc+PFSKdOZzLk83kOft1dfV2yksCNZhHKHXRJbWIzadpM:CI8zj33fjFV2yhCzMBJbWWa7
Threatray 10'755 similar samples on MalwareBazaar
TLSH DFF4CF2A030DAB2FD81872BD249041DCD1F19B80FA38F5D8FD9730A555D539EAB9E2C6
Reporter abuse_ch
Tags:AgentTesla exe


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: ptmatsuo.co.id
Sending IP: 202.74.72.84
From: My Trips <retail@lasfragancias.com>
Subject: Tickets Confirmed!
Attachment: sElectronic Flight Ticket Booking Payment Confirmation XXXX7383929837 Debit BNC9929302.xz (contains "sElectronic Flight Ticket Booking Payment Confirmation XXXX7383929837 Debit BNC9929302.exe")

Intelligence

File Origin
# of uploads :
1
# of downloads :
79
Origin country :
n/a
Vendor Threat Intelligence
Detection:
AgentTeslaV2
Create hunting rule
Link:
https://www.capesandbox.com/analysis/53308/
Detection(s):
SecuriteInfo.com.MSIL.Kryptik.VFR-1.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
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 by creating a file
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/455030
Signature
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
Installs a global keyboard hook
Machine Learning detection for dropped file
Machine Learning detection for sample
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)
Sigma detected: Capture Wi-Fi password
Sigma detected: Scheduled temp file as task from temp location
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 harvest and steal WLAN passwords
Tries to steal Mail credentials (via file access)
Uses netsh to modify the Windows network and firewall settings
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: 279890 Sample: sElectronic Flight Ticket B... Startdate: 31/08/2020 Architecture: WINDOWS Score: 100 62 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->62 64 Sigma detected: Capture Wi-Fi password 2->64 66 Multi AV Scanner detection for dropped file 2->66 68 13 other signatures 2->68 9 sElectronic Flight Ticket Booking Payment Confirmation XXXX7383929837 Debit BNC9929302.exe 7 2->9         started        13 IYLZX5.exe 2->13         started        15 IYLZX5.exe 5 2->15         started        process3 file4 52 C:\Users\user\AppData\...\KPKqEkecKHSlp.exe, PE32 9->52 dropped 54 C:\...\KPKqEkecKHSlp.exe:Zone.Identifier, ASCII 9->54 dropped 56 C:\Users\user\AppData\Local\...\tmpDCBC.tmp, XML 9->56 dropped 58 sElectronic Flight... BNC9929302.exe.log, ASCII 9->58 dropped 84 Injects a PE file into a foreign processes 9->84 17 sElectronic Flight Ticket Booking Payment Confirmation XXXX7383929837 Debit BNC9929302.exe 17 6 9->17         started        22 schtasks.exe 1 9->22         started        24 IYLZX5.exe 13->24         started        26 schtasks.exe 13->26         started        86 Multi AV Scanner detection for dropped file 15->86 88 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 15->88 90 Machine Learning detection for dropped file 15->90 92 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 15->92 signatures5 process6 dnsIp7 60 ftp.rebu.co.rw 104.247.74.6, 21, 30488, 30590 IMH-WESTUS United States 17->60 48 C:\Users\user\AppData\Roaming\...\IYLZX5.exe, PE32 17->48 dropped 50 C:\Users\user\...\IYLZX5.exe:Zone.Identifier, ASCII 17->50 dropped 70 Tries to harvest and steal WLAN passwords 17->70 72 Hides that the sample has been downloaded from the Internet (zone.identifier) 17->72 74 Installs a global keyboard hook 17->74 28 netsh.exe 3 17->28         started        30 conhost.exe 22->30         started        76 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 24->76 78 Tries to steal Mail credentials (via file access) 24->78 80 Tries to harvest and steal ftp login credentials 24->80 82 Tries to harvest and steal browser information (history, passwords, etc) 24->82 32 netsh.exe 24->32         started        34 conhost.exe 26->34         started        file8 signatures9 process10 process11 36 conhost.exe 28->36         started        38 schtasks.exe 1 30->38         started        40 IYLZX5.exe 2 30->40         started        42 IYLZX5.exe 30->42         started        44 conhost.exe 32->44         started        process12 46 conhost.exe 38->46         started       
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/677c3ed89ae8bde6abe34f5982e3ccd9f56092058ecf38ef6c269aa27db724fb/
Threat name:
ByteCode-MSIL.Trojan.Kryptik
Create hunting rule
Status:
Malicious
First seen:
2020-08-31 00:13:09 UTC
AV detection:
22 of 29 (75.86%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=m56d5we25c66nk7dj5myfy6m3h2wbeqfr3htr33me2nke7nxet5q._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
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AgentTesla
+ 10'745 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/200831-7jwyssktps/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Modifies service
Suspicious use of SetThreadContext
Adds Run key to start application
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
AgentTesla Payload
AgentTesla
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Trojan
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/677c3ed89ae8bde6abe34f5982e3ccd9f56092058ecf38ef6c269aa27db724fb

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

xz 0eef2c2b369c9c9e409700574d9c580b2a644efba350036753cad6e535383f3a

AgentTesla

Executable exe 677c3ed89ae8bde6abe34f5982e3ccd9f56092058ecf38ef6c269aa27db724fb

(this sample)

  
Dropped by
MD5 08045b544d5735c4faf789e1105ad2c7
  
Delivery method
Distributed via e-mail attachment
  
Dropped by
SHA256 0eef2c2b369c9c9e409700574d9c580b2a644efba350036753cad6e535383f3a
Cape
Cape
https://www.capesandbox.com/analysis/53308/

Comments