MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 691eb9a4675c76f72ca03595137e3215b3ddf27c040d7bc871301ef847b0f609. 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: 691eb9a4675c76f72ca03595137e3215b3ddf27c040d7bc871301ef847b0f609
SHA3-384 hash: c21a2dcae5379b1cd89a41e77af3e89cf0e893fe724125848bef04ed7112a18e5ae34a09ccc234a554cfe0b0fc118a91
SHA1 hash: 701e696dd3dfbbb4e72cb5d2837093bcfe7faae1
MD5 hash: 74430ed68ad78f34d73bc40ba4f5c8f2
humanhash: spaghetti-iowa-harry-pip
File name:MV ASIAN MAJESTY V.20005C-BUNKERING_pdf.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:886'784 bytes
First seen:2020-08-17 13:59:36 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 24576:OI4EcmZHAFaxmVmie9bngPKD+CyEQ6CFnl7u:T4EcmZHAFaxmVmie9bngPiV1OnE
Threatray 10'651 similar samples on MalwareBazaar
TLSH 8F15C407B7C2B299C0D31D3798396DA2EFABAE1BC105843764833D98B7F59D79E14602
Reporter abuse_ch
Tags:AgentTesla exe


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: xv20.511.pinotvineryms.cf
Sending IP: 104.248.21.75
From: Liang Xiao Feng <opsagt@beltruno.com>
Subject: RE:MV ASIAN MAJESTY V.20005C-BUNKERING
Attachment: MV ASIAN MAJESTY V.20005C-BUNKERING_pdf.rar (contains "MV ASIAN MAJESTY V.20005C-BUNKERING_pdf.exe")

Intelligence

File Origin
# of uploads :
1
# of downloads :
66
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/47078/
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/433687
Signature
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
Installs a global keyboard hook
Machine Learning detection for dropped file
Machine Learning detection for sample
Moves itself to temp directory
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: 269227 Sample: MV ASIAN MAJESTY V.20005C-B... Startdate: 17/08/2020 Architecture: WINDOWS Score: 100 55 Found malware configuration 2->55 57 Yara detected AgentTesla 2->57 59 Yara detected AntiVM_3 2->59 61 5 other signatures 2->61 6 MV ASIAN MAJESTY V.20005C-BUNKERING_pdf.exe 3 2->6         started        10 WNRUXJ.exe 2 2->10         started        12 WNRUXJ.exe 3 2->12         started        process3 file4 29 MV ASIAN MAJESTY V...NKERING_pdf.exe.log, ASCII 6->29 dropped 63 Injects a PE file into a foreign processes 6->63 14 MV ASIAN MAJESTY V.20005C-BUNKERING_pdf.exe 2 5 6->14         started        19 MV ASIAN MAJESTY V.20005C-BUNKERING_pdf.exe 6->19         started        21 MV ASIAN MAJESTY V.20005C-BUNKERING_pdf.exe 6->21         started        23 WNRUXJ.exe 2 10->23         started        65 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 12->65 67 Machine Learning detection for dropped file 12->67 69 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 12->69 25 WNRUXJ.exe 2 12->25         started        27 WNRUXJ.exe 12->27         started        signatures5 process6 dnsIp7 35 smtp.yandex.ru 77.88.21.158, 49728, 49737, 587 YANDEXRU Russian Federation 14->35 37 smtp.yandex.com 14->37 31 C:\Users\user\AppData\Roaming\...\WNRUXJ.exe, PE32 14->31 dropped 33 C:\Users\user\...\WNRUXJ.exe:Zone.Identifier, ASCII 14->33 dropped 41 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 14->41 43 Moves itself to temp directory 14->43 45 Tries to steal Mail credentials (via file access) 14->45 47 Installs a global keyboard hook 14->47 39 smtp.yandex.com 23->39 49 Tries to harvest and steal ftp login credentials 23->49 51 Tries to harvest and steal browser information (history, passwords, etc) 23->51 53 Hides that the sample has been downloaded from the Internet (zone.identifier) 23->53 file8 signatures9
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/691eb9a4675c76f72ca03595137e3215b3ddf27c040d7bc871301ef847b0f609/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2020-08-17 05:09:38 UTC
AV detection:
23 of 29 (79.31%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=nepltjdhlr3polfagwkrg7rscwz534t4aqgxxsdrgappqr5q6yeq._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
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AgentTesla
+ 10'641 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/200817-cev7r83gpa/
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:
Trojan
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/691eb9a4675c76f72ca03595137e3215b3ddf27c040d7bc871301ef847b0f609

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 bf257b4518f207cc253a93a878303e00835cf32676d78ed44809f9d814afd4f1

AgentTesla

Executable exe 691eb9a4675c76f72ca03595137e3215b3ddf27c040d7bc871301ef847b0f609

(this sample)

  
Dropped by
MD5 332fbb9b5b8fa2d9204814a28ed0e8a0
  
Delivery method
Distributed via e-mail attachment
  
Dropped by
SHA256 bf257b4518f207cc253a93a878303e00835cf32676d78ed44809f9d814afd4f1
Cape
Cape
https://www.capesandbox.com/analysis/47078/

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