MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 e076a635a79ff083ab709a7977c459047cb644cb73e817ff67aa5e1cecf9233d. 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: e076a635a79ff083ab709a7977c459047cb644cb73e817ff67aa5e1cecf9233d
SHA3-384 hash: b3fbe7ae54dbecb75616ffe5c27af932874cb8aee7a2fef2198895cbf6be8ab1d4ecb5fe573ccb46d1f4e86e61ac9060
SHA1 hash: 6ec0a96c8bcbed2edbff53c8826fc6d2e5cb30cd
MD5 hash: 0e8f3369b18d2dd65fdd3ffa15c51ee1
humanhash: foxtrot-summer-early-mars
File name:Kwsqrp8cUNUIQnD.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:503'296 bytes
First seen:2020-08-19 11:28:09 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:XrLJtNcwvpL4fnIziJuhIyyMtCKnmiJiCoDReGr2U6m:XxtNcwv6vouMC8miJlo4Gr2
Threatray 10'134 similar samples on MalwareBazaar
TLSH 81B401187964F2AFD83FCC7AA5982D74536162B71347F2065C0399EAAE0DF92CE054F2
Reporter abuse_ch
Tags:AgentTesla exe Yahoo


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: sonic306-1.consmr.mail.bf2.yahoo.com
Sending IP: 74.6.132.40
From: Elie kRICOS FRCO E.P.E <kkevin_90@yahoo.com>
Reply-To: johnkojoimitf12@gmail.com
Subject: Attached file is our Quotation and Sample of Products.
Attachment: Quotation and Sample.rar (contains "Kwsqrp8cUNUIQnD.exe")

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

AgentTesla SMTP exfil email address:
huverteamup@annlap.com

Intelligence

File Origin
# of uploads :
1
# of downloads :
74
Origin country :
n/a
Vendor Threat Intelligence
Detection:
AgentTeslaV2
Create hunting rule
Link:
https://www.capesandbox.com/analysis/48457/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
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.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/437708
Signature
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects a PE file into a foreign processes
Installs a global keyboard hook
Machine Learning detection for dropped file
Machine Learning detection for sample
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)
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: 271363 Sample: Kwsqrp8cUNUIQnD.exe Startdate: 20/08/2020 Architecture: WINDOWS Score: 100 37 Found malware configuration 2->37 39 Yara detected AgentTesla 2->39 41 Yara detected AntiVM_3 2->41 43 2 other signatures 2->43 6 newapp.exe 3 2->6         started        9 Kwsqrp8cUNUIQnD.exe 3 2->9         started        12 newapp.exe 2 2->12         started        process3 file4 45 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 6->45 47 Machine Learning detection for dropped file 6->47 49 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 6->49 14 newapp.exe 2 6->14         started        27 C:\Users\user\...\Kwsqrp8cUNUIQnD.exe.log, ASCII 9->27 dropped 51 Injects a PE file into a foreign processes 9->51 18 Kwsqrp8cUNUIQnD.exe 2 5 9->18         started        21 newapp.exe 12->21         started        signatures5 process6 dnsIp7 29 smtp.annlap.com 14->29 31 208.91.199.223, 49742, 587 PUBLIC-DOMAIN-REGISTRYUS United States 14->31 53 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 14->53 55 Tries to steal Mail credentials (via file access) 14->55 57 Tries to harvest and steal ftp login credentials 14->57 59 Tries to harvest and steal browser information (history, passwords, etc) 14->59 33 smtp.annlap.com 18->33 35 us2.smtp.mailhostbox.com 208.91.199.225, 49730, 587 PUBLIC-DOMAIN-REGISTRYUS United States 18->35 23 C:\Users\user\AppData\Roaming\...\newapp.exe, PE32 18->23 dropped 25 C:\Users\user\...\newapp.exe:Zone.Identifier, ASCII 18->25 dropped 61 Hides that the sample has been downloaded from the Internet (zone.identifier) 18->61 63 Installs a global keyboard hook 18->63 file8 signatures9
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/e076a635a79ff083ab709a7977c459047cb644cb73e817ff67aa5e1cecf9233d/
Threat name:
ByteCode-MSIL.Trojan.Kryptik
Create hunting rule
Status:
Malicious
First seen:
2020-08-18 21:58:00 UTC
AV detection:
24 of 29 (82.76%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=4b3kmnnht7yihk3qtj4xprczar6lmrglopubp73hvjpbz3hzem6q._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
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AgentTesla
+ 10'124 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
keylogger stealer spyware trojan family:agenttesla persistence
Link:
https://tria.ge/reports/200819-7wz11lx88e/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
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:
Kryptik
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/e076a635a79ff083ab709a7977c459047cb644cb73e817ff67aa5e1cecf9233d

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

rar 53fddd334c42679b0706e48da1e3aac347642c44bbe35c3e789c2dd8d3c46e85

AgentTesla

Executable exe e076a635a79ff083ab709a7977c459047cb644cb73e817ff67aa5e1cecf9233d

(this sample)

  
Dropped by
MD5 988b85c2d82909754a943d9c89a8c725
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/48457/
  
Dropped by
SHA256 53fddd334c42679b0706e48da1e3aac347642c44bbe35c3e789c2dd8d3c46e85

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