MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 5d7d5635f39243bf76aab83e1766066e9c3a024bdbcecf4dca14051e577efe4e. 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: 5d7d5635f39243bf76aab83e1766066e9c3a024bdbcecf4dca14051e577efe4e
SHA3-384 hash: f7a2233b0b4584aafcecac1f9a1ef5818c26757522471046010fc615ef7c329262343f44f5e525acd44b22cb27106491
SHA1 hash: 9482af6268d3823ee11dc5cd07c50218161483b1
MD5 hash: e6338e5975ac79e4b333310f92b81c32
humanhash: thirteen-fifteen-leopard-helium
File name:proforma invoice.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:565'760 bytes
First seen:2020-08-30 08:55:53 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'600 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 12288:sI1ksfHIOG76UkS2csv+tm39BjzKH0ruY0:Rksvo6Q2r+tKBCU10
Threatray 10'633 similar samples on MalwareBazaar
TLSH 73C4121072FD1F1AD8EDABF90A9C714083FABD1A5665E25E1C4530DF2A36B409601FB7
Reporter abuse_ch
Tags:AgentTesla exe


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: ceri.com.cn
Sending IP: 37.49.230.200
From: "Accounting Department" <lubo@ceri.com.cn>
Subject: 回复: RE: Deposit Payment
Attachment: proforma invoice.Z (contains "proforma invoice.exe")

AgentTesla SMTP exfil server:
mail.threewaystoharems.com:587

Intelligence

File Origin
# of uploads :
1
# of downloads :
102
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/53088/
Detection(s):
SecuriteInfo.com.W32.Trojan-7.UNOFFICIAL
Create hunting rule

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
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/454552
Signature
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
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
Moves itself to temp directory
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)
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: 279648 Sample: proforma invoice.exe Startdate: 30/08/2020 Architecture: WINDOWS Score: 100 53 Found malware configuration 2->53 55 Multi AV Scanner detection for submitted file 2->55 57 Yara detected AgentTesla 2->57 59 6 other signatures 2->59 6 proforma invoice.exe 3 2->6         started        10 YYtJku.exe 2 2->10         started        12 YYtJku.exe 3 2->12         started        process3 file4 27 C:\Users\user\...\proforma invoice.exe.log, ASCII 6->27 dropped 61 Injects a PE file into a foreign processes 6->61 14 proforma invoice.exe 2 5 6->14         started        19 YYtJku.exe 10->19         started        21 YYtJku.exe 10->21         started        63 Multi AV Scanner detection for dropped file 12->63 65 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 12->65 67 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 12->67 23 YYtJku.exe 2 12->23         started        25 YYtJku.exe 12->25         started        signatures5 process6 dnsIp7 33 threewaystoharems.com 192.254.236.251, 49739, 49756, 587 UNIFIEDLAYER-AS-1US United States 14->33 35 mail.threewaystoharems.com 14->35 29 C:\Users\user\AppData\Roaming\...\YYtJku.exe, PE32 14->29 dropped 31 C:\Users\user\...\YYtJku.exe:Zone.Identifier, ASCII 14->31 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 37 mail.threewaystoharems.com 19->37 39 192.168.2.1 unknown unknown 19->39 47 Tries to harvest and steal ftp login credentials 19->47 49 Tries to harvest and steal browser information (history, passwords, etc) 19->49 51 Hides that the sample has been downloaded from the Internet (zone.identifier) 19->51 file8 signatures9
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/5d7d5635f39243bf76aab83e1766066e9c3a024bdbcecf4dca14051e577efe4e/
Threat name:
ByteCode-MSIL.Trojan.Sudloader
Create hunting rule
Status:
Malicious
First seen:
2020-08-29 10:14:51 UTC
AV detection:
24 of 29 (82.76%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=lv6vmnptsjb365vkxa7bozqgn2oduasl3phm6tokcqcr4v367zha._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
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AgentTesla
+ 10'623 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/200830-qtyxjys78n/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: RenamesItself
Suspicious use of AdjustPrivilegeToken
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/5d7d5635f39243bf76aab83e1766066e9c3a024bdbcecf4dca14051e577efe4e

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

z 64d8051f2449d6089cc4bce1e13af8c74a07d4c07fdf45c7ef157bf18ea6a83f

AgentTesla

Executable exe 5d7d5635f39243bf76aab83e1766066e9c3a024bdbcecf4dca14051e577efe4e

(this sample)

  
Dropped by
MD5 ebc76a90cf7ddecccce23ec3facf6b9f
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/53088/
  
Dropped by
SHA256 64d8051f2449d6089cc4bce1e13af8c74a07d4c07fdf45c7ef157bf18ea6a83f

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