MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 5623d57806cdca9774c3a13899e361f66948b648303e491bb79072faa715930c. 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: 5623d57806cdca9774c3a13899e361f66948b648303e491bb79072faa715930c
SHA3-384 hash: ded1c1f000969938ad6b3c5418292311bc6f1eecd30f0aa407f9e51db3ac413e26d3f527d94d7cde7da39c94561e2808
SHA1 hash: ec72a43f3d30fa23f04aff52e6acd8bbec598fdc
MD5 hash: d9281efe2e2e66513590d43a097551bd
humanhash: foxtrot-seventeen-march-mango
File name:Quote-DOC-9196.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:538'624 bytes
First seen:2020-08-27 05:23:14 UTC
Last seen:2020-08-27 06:18:27 UTC
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:n2rM90FwuBH81fMzRlShCJ1reelNnU5EfTuHX:Eq0FZBc0RzJNVvq
Threatray 10'630 similar samples on MalwareBazaar
TLSH BBB4129853BECF29D0FD0E79F8BF315083F1BD5458B9D39A8A5490AA1897F8049127E3
Reporter abuse_ch
Tags:AgentTesla exe


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: srv.kibriswebhizmetleri.com
Sending IP: 213.159.5.123
From: Afnan El-Khatib <a.el-khatib@AlmeerHameed.pk>
Subject: RE:RE: Request for Quotation: Quote-DOC-0719
Attachment: Quote-DOC-9196.rar (contains "Quote-DOC-9196.exe")

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

Intelligence

File Origin
# of uploads :
2
# of downloads :
84
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/51572/
Detection(s):
SecuriteInfo.com.Fareit-FYVD9281EFE2E2E.12188.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a UDP request
Creating a window
Creating a file in the %AppData% directory
Creating a file in the %temp% directory
Launching a process
Creating a process with a hidden window
Deleting a recently created file
Creating a file
Using the Windows Management Instrumentation requests
Reading critical registry keys
Stealing user critical data
Enabling autorun by creating a file
Unauthorized injection to a system process
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/452235
Signature
Allocates memory in foreign processes
Binary contains a suspicious time stamp
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Found malware configuration
Injects a PE file into a foreign processes
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)
Sigma detected: Scheduled temp file as task from temp location
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 schtasks.exe or at.exe to add and modify task schedules
Writes to foreign memory regions
Yara detected AgentTesla
Yara detected AntiVM_3
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 278477 Sample: Quote-DOC-9196.exe Startdate: 27/08/2020 Architecture: WINDOWS Score: 100 33 Found malware configuration 2->33 35 Multi AV Scanner detection for dropped file 2->35 37 Sigma detected: Scheduled temp file as task from temp location 2->37 39 8 other signatures 2->39 7 Quote-DOC-9196.exe 5 2->7         started        process3 file4 21 C:\Users\user\AppData\...\URIouGOTUcJi.exe, PE32 7->21 dropped 23 C:\Users\...\URIouGOTUcJi.exe:Zone.Identifier, ASCII 7->23 dropped 25 C:\Users\user\AppData\Local\...\tmp4058.tmp, XML 7->25 dropped 27 C:\Users\user\...\Quote-DOC-9196.exe.log, ASCII 7->27 dropped 41 Writes to foreign memory regions 7->41 43 Allocates memory in foreign processes 7->43 45 Injects a PE file into a foreign processes 7->45 47 Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent) 7->47 11 RegSvcs.exe 2 7->11         started        15 RegSvcs.exe 7->15         started        17 schtasks.exe 1 7->17         started        signatures5 process6 dnsIp7 29 smtp.yandex.ru 77.88.21.158, 49711, 587 YANDEXRU Russian Federation 11->29 31 smtp.yandex.com 11->31 49 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 11->49 51 Tries to steal Mail credentials (via file access) 11->51 53 Tries to harvest and steal ftp login credentials 11->53 55 Tries to harvest and steal browser information (history, passwords, etc) 11->55 57 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 15->57 19 conhost.exe 17->19         started        signatures8 process9
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/5623d57806cdca9774c3a13899e361f66948b648303e491bb79072faa715930c/
Threat name:
ByteCode-MSIL.Spyware.Negasteal
Create hunting rule
Status:
Malicious
First seen:
2020-08-27 05:25:06 UTC
AV detection:
21 of 29 (72.41%)
Threat level:
  2/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=kyr5k6agzxfjo5gdue4jty3b6zuurnsiga7esg5xsbzpvjyvsmga._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
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AgentTesla
+ 10'620 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
keylogger stealer trojan spyware family:agenttesla
Link:
https://tria.ge/reports/200827-c8q2fnqt9s/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
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:
AgentTesla
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/5623d57806cdca9774c3a13899e361f66948b648303e491bb79072faa715930c

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 25321f7693420ad5945190854ab963701e372fa3b6ff936c27692b047c905ebe

AgentTesla

Executable exe 5623d57806cdca9774c3a13899e361f66948b648303e491bb79072faa715930c

(this sample)

  
Dropped by
MD5 07439a7af4dba10769c2e6b5b605c7b6
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/51572/
  
Dropped by
SHA256 25321f7693420ad5945190854ab963701e372fa3b6ff936c27692b047c905ebe

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