MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 717c5cb1406d8e04f9853709c6e0d3e08c27c2349e3fd63e7269946b1424b2c3. 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: 7


Intelligence 7 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 717c5cb1406d8e04f9853709c6e0d3e08c27c2349e3fd63e7269946b1424b2c3
SHA3-384 hash: 6c19eecf44e65a04328285ec1f9a1329e8888b2baecf35658d8de506931ac2f721a19991a03422b8bce454a0c6a2c78c
SHA1 hash: ac3d1a07b93ef5ae201a6bd90814dcd2ecd0bc38
MD5 hash: c99c776c98829c31180457219284bb61
humanhash: five-grey-berlin-orange
File name:VODKA.xlsm
Download: download sample
Signature AgentTesla
Create hunting rule
File size:80'481 bytes
First seen:2020-07-29 06:28:19 UTC
Last seen:Never
File type:Excel file xlsm
MIME type:application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
ssdeep 1536:TIKh/slzpcUkATocf8LFKDvJtwVD1BSw/+ipXDYpUbL86wg:pstuUw1JD1Qw/+ipXDYpaLPn
TLSH 8D7302705E029C9AD223C3B6E5F60D24904E39515609F77B3E29FAE6890DB78065C2FB
Reporter abuse_ch
Tags:AgentTesla xlsm Yahoo


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: sonic302-52.consmr.mail.ne1.yahoo.com
Sending IP: 66.163.186.178
From: KYLE CURLEY <curleyk@bellsouth.net>
Subject: Re: Vodka PO
Attachment: VODKA.xlsm

AgentTesla payload URL:
http://185.172.110.210/focm/artwokg.exe

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

Intelligence

File Origin
# of uploads :
1
# of downloads :
71
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file
Using the Windows Management Instrumentation requests
Unauthorized injection to a recently created process by context flags manipulation
Sending an HTTP GET request to an infection source by exploiting the app vulnerability
Creating a process from a recently created file
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/401317
Signature
.NET source code contains potential unpacker
.NET source code references suspicious native API functions
Antivirus detection for dropped file
Contains functionality to register a low level keyboard hook
Document exploit detected (creates forbidden files)
Document exploit detected (drops PE files)
Document exploit detected (process start blacklist hit)
Drops PE files to the user root directory
Found malware configuration
Installs a global keyboard hook
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for dropped file
Office process drops PE 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: Executables Started in Suspicious Folder
Sigma detected: Execution in Non-Executable Folder
Sigma detected: MS Office Product Spawning Exe in User Dir
Sigma detected: Suspicious Program Location Process Starts
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 AntiVM_3
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 252888 Sample: VODKA.xlsm Startdate: 29/07/2020 Architecture: WINDOWS Score: 100 31 Multi AV Scanner detection for domain / URL 2->31 33 Found malware configuration 2->33 35 Antivirus detection for dropped file 2->35 37 13 other signatures 2->37 7 EXCEL.EXE 32 38 2->7         started        12 wuapihost.exe 2->12         started        process3 dnsIp4 29 185.172.110.210, 49736, 80 BLADESERVERSNL Netherlands 7->29 21 C:\Users\user\AppData\...\artwokg[1].exe, PE32 7->21 dropped 23 C:\Users\Public\qkaiqbdrt.exe, PE32 7->23 dropped 47 Document exploit detected (creates forbidden files) 7->47 49 Document exploit detected (process start blacklist hit) 7->49 14 qkaiqbdrt.exe 3 7->14         started        file5 signatures6 process7 signatures8 51 Antivirus detection for dropped file 14->51 53 Multi AV Scanner detection for dropped file 14->53 55 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 14->55 57 2 other signatures 14->57 17 qkaiqbdrt.exe 2 14->17         started        process9 dnsIp10 25 smtp.yandex.ru 77.88.21.158, 49748, 587 YANDEXRU Russian Federation 17->25 27 smtp.yandex.com 17->27 39 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 17->39 41 Tries to steal Mail credentials (via file access) 17->41 43 Tries to harvest and steal ftp login credentials 17->43 45 2 other signatures 17->45 signatures11
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/717c5cb1406d8e04f9853709c6e0d3e08c27c2349e3fd63e7269946b1424b2c3/
Threat name:
Document-Word.Downloader.Powdow
Create hunting rule
Status:
Malicious
First seen:
2020-07-29 06:30:08 UTC
AV detection:
16 of 29 (55.17%)
Threat level:
  3/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=of6fzmkanwhaj6mfg4e4nygt4cgcpqruty75mptsngkgwfbewlbq._file
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
spyware keylogger trojan stealer family:agenttesla
Link:
https://tria.ge/reports/200729-l3tqb2eqmn/
Behaviour
Suspicious use of WriteProcessMemory
Suspicious behavior: AddClipboardFormatListener
Suspicious use of SetWindowsHookEx
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: EnumeratesProcesses
Office loads VBA resources, possible macro or embedded object present
Suspicious use of SetThreadContext
Reads data files stored by FTP clients
Reads user/profile data of web browsers
Reads user/profile data of local email clients
Executes dropped EXE
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/717c5cb1406d8e04f9853709c6e0d3e08c27c2349e3fd63e7269946b1424b2c3

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:SharedStrings
Create hunting rule
Author:Katie Kleemola
Description:Internal names found in LURK0/CCTV0 samples
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 717c5cb1406d8e04f9853709c6e0d3e08c27c2349e3fd63e7269946b1424b2c3

(this sample)

AgentTesla

Executable exe c5684f8094ad4e3ad6c83aa3914c09bebbb16a8f202aad17b3bc45db1ba09ab1

  
URLhaus
https://urlhaus.abuse.ch/url/421256/
  
Delivery method
Distributed via e-mail attachment
  
Dropping
SHA256 c5684f8094ad4e3ad6c83aa3914c09bebbb16a8f202aad17b3bc45db1ba09ab1
  
Dropping
MD5 9f2a612ea2e5c9c392c86c80d2838617

Comments