MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a18c873be684866e0cd0493c18d7c6a37d5842217ef411ae92b0f47232288c06. 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: a18c873be684866e0cd0493c18d7c6a37d5842217ef411ae92b0f47232288c06
SHA3-384 hash: 4ca958d16263aea2c7d761e959ef5e144cbb47134da4a8b865fa3c346bebb3213addd4dff16677200b21c7fd52ca62ab
SHA1 hash: 2ac11e9f8fb8ce13780a9412e3c5096eda574afa
MD5 hash: 7e5f63f90ee013c483f9ed7b9caef45e
humanhash: bulldog-alaska-kitten-don
File name:Shipping DOC -Arrival Notice For BL - 120910126192 Vessel - MV Crystal BAY Voyage - 19014S.pdf.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:594'432 bytes
First seen:2020-07-24 15:04:14 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 12288:7h6GlbjA2iN2oIrrsAPdcVtvPtXc/1/Tpoaj3:7PRA1cBdcVVFctLpX3
Threatray 10'698 similar samples on MalwareBazaar
TLSH 9AC4BE092AD81A5FF56D37BEB3535410ABB9A51516BBEF0E7EC6C0EC1C3232099417A3
Reporter abuse_ch
Tags:AgentTesla exe


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: fmt05.web.com.ph
Sending IP: 65.49.80.88
From: ffdeduyo@curb.com.ph
Subject: RE: Arrival Notice For BL - 120910126192 / Vessel - MV Crystal BAY / Voyage - 19014S
Attachment: Shipping DOC -Arrival Notice For BL - 120910126192 Vessel - MV Crystal BAY Voyage - 19014S.pdf.arj (contains "Shipping DOC -Arrival Notice For BL - 120910126192 Vessel - MV Crystal BAY Voyage - 19014S.pdf.exe")

AgentTesla SMTP exfil server:
droid@arigmed.com:587

Intelligence

File Origin
# of uploads :
1
# of downloads :
93
Origin country :
n/a
Vendor Threat Intelligence
Detection:
AgentTeslaV2
Create hunting rule
Link:
https://www.capesandbox.com/analysis/32231/
Detection(s):
SecuriteInfo.com.MSIL.Kryptik.WZA.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Unauthorized injection to a recently created process
Creating a file
Using the Windows Management Instrumentation requests
Creating a file in the %AppData% subdirectories
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Moving of the original file
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/397498
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 250970 Sample: Shipping DOC -Arrival Notic... Startdate: 24/07/2020 Architecture: WINDOWS Score: 100 39 Found malware configuration 2->39 41 Multi AV Scanner detection for submitted file 2->41 43 Yara detected AgentTesla 2->43 45 5 other signatures 2->45 6 YYtJku.exe 1 2->6         started        9 Shipping DOC -Arrival Notice For BL - 120910126192  Vessel - MV Crystal BAY  Voyage - 19014S.pdf.exe 1 2->9         started        12 YYtJku.exe 2->12         started        process3 file4 47 Multi AV Scanner detection for dropped file 6->47 49 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 6->49 51 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 6->51 14 YYtJku.exe 2 6->14         started        31 Shipping DOC -Arri... 19014S.pdf.exe.log, ASCII 9->31 dropped 53 Injects a PE file into a foreign processes 9->53 18 Shipping DOC -Arrival Notice For BL - 120910126192  Vessel - MV Crystal BAY  Voyage - 19014S.pdf.exe 2 5 9->18         started        21 Shipping DOC -Arrival Notice For BL - 120910126192  Vessel - MV Crystal BAY  Voyage - 19014S.pdf.exe 9->21         started        23 Shipping DOC -Arrival Notice For BL - 120910126192  Vessel - MV Crystal BAY  Voyage - 19014S.pdf.exe 9->23         started        25 YYtJku.exe 12->25         started        signatures5 process6 dnsIp7 33 smtp.yandex.com 14->33 55 Tries to harvest and steal ftp login credentials 14->55 57 Tries to harvest and steal browser information (history, passwords, etc) 14->57 59 Hides that the sample has been downloaded from the Internet (zone.identifier) 14->59 35 smtp.yandex.ru 77.88.21.158, 49734, 49735, 587 YANDEXRU Russian Federation 18->35 37 smtp.yandex.com 18->37 27 C:\Users\user\AppData\Roaming\...\YYtJku.exe, PE32 18->27 dropped 29 C:\Users\user\...\YYtJku.exe:Zone.Identifier, ASCII 18->29 dropped 61 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 18->61 63 Moves itself to temp directory 18->63 65 Tries to steal Mail credentials (via file access) 18->65 file8 signatures9
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/a18c873be684866e0cd0493c18d7c6a37d5842217ef411ae92b0f47232288c06/
Threat name:
ByteCode-MSIL.Trojan.Masslogger
Create hunting rule
Status:
Malicious
First seen:
2020-07-24 15:06:08 UTC
AV detection:
24 of 29 (82.76%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=uggioo7gqsdg4dgqje6brv6gun6vqqrbp32bdluswd2hemrirqda._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
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AgentTesla
+ 10'688 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
persistence spyware keylogger trojan stealer family:agenttesla
Link:
https://tria.ge/reports/200724-nvpkzq2z8x/
Behaviour
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: RenamesItself
Suspicious use of SetThreadContext
Adds Run key to start application
Reads user/profile data of web browsers
Reads data files stored by FTP clients
Reads user/profile data of local email clients
AgentTesla
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.65
Link:
https://yomi.yoroi.company/submissions/a18c873be684866e0cd0493c18d7c6a37d5842217ef411ae92b0f47232288c06

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

arj 7ace5d45a67e84cfc93e66018e4785d0b0f59e0748e40394279211a256e72e03

AgentTesla

Executable exe a18c873be684866e0cd0493c18d7c6a37d5842217ef411ae92b0f47232288c06

(this sample)

  
Dropped by
MD5 c916fb169ff7466902909cc291b6f3bd
  
Delivery method
Distributed via e-mail attachment
  
Dropped by
SHA256 7ace5d45a67e84cfc93e66018e4785d0b0f59e0748e40394279211a256e72e03
Cape
Cape
https://www.capesandbox.com/analysis/32231/

Comments