MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a527ef285e43baaea32892e0a5cb56b7cbacad289e91aec9d31be07618f28e53. 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: 6


Intelligence 6 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a527ef285e43baaea32892e0a5cb56b7cbacad289e91aec9d31be07618f28e53
SHA3-384 hash: f79ce441542968a3adf57471d307a9f5868a8087e886c4531251bd70e9f8b12b0d8d94db0a040509d573ac9f971b091f
SHA1 hash: abee8dd63558333fc2cf808305942aec69fdb784
MD5 hash: 517c04ddf8af74a6a4a0239e9cb4500d
humanhash: four-lamp-mike-jersey
File name:Bank Payment Copy001#pdf.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:483'328 bytes
First seen:2020-06-05 10:27:24 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:QlMY7ZJ9TPlooT42vTJxK92YpaSMBQCt:QmY7Z7PFE2v1x4paS
Threatray 10'689 similar samples on MalwareBazaar
TLSH D4A4E19D322C3B1FC8BE47F598A23D2023B024A7632AF24A9CD3A4D9956DFC54E551D3
Reporter abuse_ch
Tags:AgentTesla exe Yahoo


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: sonic301-19.consmr.mail.sg3.yahoo.com
Sending IP: 106.10.242.82
From: Karishma Sood <karishma.sood@yahoo.co.in>
Reply-To: Karishma Sood <karishma.sood@yahoo.co.in>
Subject: Fw: Overdue Payment copy
Attachment: Bank Payment Copy001pdf.rar (contains "Bank Payment Copy001#pdf.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
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/382827
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 243564 Sample: Ht6tXWlj0Z.exe Startdate: 06/07/2020 Architecture: WINDOWS Score: 100 36 Found malware configuration 2->36 38 Sigma detected: Capture Wi-Fi password 2->38 40 Multi AV Scanner detection for dropped file 2->40 42 10 other signatures 2->42 8 Ht6tXWlj0Z.exe 7 2->8         started        process3 file4 24 C:\Users\user\AppData\...\srgOeNLZfJxnX.exe, PE32 8->24 dropped 26 C:\...\srgOeNLZfJxnX.exe:Zone.Identifier, ASCII 8->26 dropped 28 C:\Users\user\AppData\Local\...\tmpFE6D.tmp, XML 8->28 dropped 30 C:\Users\user\AppData\...\Ht6tXWlj0Z.exe.log, ASCII 8->30 dropped 44 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 8->44 46 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 8->46 12 Ht6tXWlj0Z.exe 2 8->12         started        16 schtasks.exe 1 8->16         started        signatures5 process6 dnsIp7 32 smtp.yandex.ru 77.88.21.158, 49716, 587 YANDEXRU Russian Federation 12->32 34 smtp.yandex.com 12->34 48 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 12->48 50 Tries to steal Mail credentials (via file access) 12->50 52 Tries to harvest and steal ftp login credentials 12->52 54 3 other signatures 12->54 18 netsh.exe 3 12->18         started        20 conhost.exe 16->20         started        signatures8 process9 process10 22 conhost.exe 18->22         started       
Gathering data
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2020-06-05 03:24:51 UTC
AV detection:
24 of 29 (82.76%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=uut66kc6io5k5izislqkls2ww7f2zljit2i25sotdpqhmghsrzjq._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
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AgentTesla
+ 10'679 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla keylogger persistence rezer0 spyware stealer trojan
Link:
https://tria.ge/reports/201109-bbemlxr6aa/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Modifies service
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
ServiceHost packer
rezer0
AgentTesla
Please note that we are no longer able to provide a coverage score for Virus Total.

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 a4c644e9a5812a272093c5740b932c55ffa135e02099ff5400855a252cc4fdfc

AgentTesla

Executable exe a527ef285e43baaea32892e0a5cb56b7cbacad289e91aec9d31be07618f28e53

(this sample)

  
Dropped by
MD5 4cdbb5b5319ee00f65d126c4d0377e12
  
Delivery method
Distributed via e-mail attachment
  
Dropped by
SHA256 a4c644e9a5812a272093c5740b932c55ffa135e02099ff5400855a252cc4fdfc

Comments