MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 aca5d511766675be33f5a22545859964cceabe1cb019064c67739d14e769f0bf. 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 2 File information Comments
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SHA256 hash: aca5d511766675be33f5a22545859964cceabe1cb019064c67739d14e769f0bf
SHA3-384 hash: ffa0f0e5ea36fcde005c21b8126fbdf0bb939d1918410ce66c7b58226d5d8abe9261b6913a45a8163d00332ebb497e1d
SHA1 hash: a0873f9e9d93808378b3aac1c2920ef54a7ed0ac
MD5 hash: 521216a87953b5d104e4384214189517
humanhash: black-london-island-helium
File name:PAYMENT ADVISE(103) TTUSD81452021.pdf.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:825'344 bytes
First seen:2021-05-12 09:03:37 UTC
Last seen:2021-05-12 13:12:12 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 12288:s5ZyNRb+3UBF6ZzzR2JHL2qzbKZH/bgtxdKhAkdzhOCath1z1VxpSowq9f1oAP:UM3+ECzeHLbHcH/Kx+AuUCatlfpSBsT
Threatray 4'857 similar samples on MalwareBazaar
TLSH D105239E3748B6EFC827D53289981DB0BA916DE7932F44078623265D8F6C85FCF045B2
Reporter lowmal3
Tags:AgentTesla

Intelligence

File Origin
# of uploads :
4
# of downloads :
124
Origin country :
n/a
Vendor Threat Intelligence
Detection(s):
SecuriteInfo.com.Artemis521216A87953.9130.2217.UNOFFICIAL
Create hunting rule

Result
Verdict:
Clean
Maliciousness:

Behaviour
Sending a UDP request
Creating a window
Result
Verdict:
MALICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/779651
Signature
.NET source code contains very large array initializations
Adds a directory exclusion to Windows Defender
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Detected unpacking (changes PE section rights)
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
Machine Learning detection for dropped file
Machine Learning detection for sample
Multi AV Scanner detection for dropped file
PE file contains section with special chars
PE file has nameless sections
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)
Sigma detected: Suspicious Double Extension
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to harvest and steal ftp login credentials
Uses an obfuscated file name to hide its real file extension (double extension)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AgentTesla
Yara detected AntiVM3
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 412047 Sample: PAYMENT ADVISE(103) TTUSD81... Startdate: 12/05/2021 Architecture: WINDOWS Score: 100 63 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->63 65 Found malware configuration 2->65 67 Multi AV Scanner detection for dropped file 2->67 69 18 other signatures 2->69 7 PAYMENT ADVISE(103) TTUSD81452021.pdf.exe 7 2->7         started        11 pGKuRU.exe 2->11         started        13 pGKuRU.exe 2->13         started        process3 file4 47 C:\Users\user\AppData\Roaming\iYBvSfDZm.exe, PE32 7->47 dropped 49 C:\Users\...\iYBvSfDZm.exe:Zone.Identifier, ASCII 7->49 dropped 51 C:\Users\user\AppData\Local\...\tmp99D1.tmp, XML 7->51 dropped 53 PAYMENT ADVISE(103...1452021.pdf.exe.log, ASCII 7->53 dropped 71 Adds a directory exclusion to Windows Defender 7->71 73 Injects a PE file into a foreign processes 7->73 15 PAYMENT ADVISE(103) TTUSD81452021.pdf.exe 7->15         started        19 powershell.exe 22 7->19         started        21 powershell.exe 26 7->21         started        31 2 other processes 7->31 75 Multi AV Scanner detection for dropped file 11->75 77 Detected unpacking (changes PE section rights) 11->77 79 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 11->79 81 2 other signatures 11->81 23 powershell.exe 11->23         started        25 schtasks.exe 11->25         started        27 powershell.exe 11->27         started        29 pGKuRU.exe 11->29         started        signatures5 process6 file7 55 C:\Users\user\AppData\Roaming\...\pGKuRU.exe, PE32 15->55 dropped 57 C:\Users\user\...\pGKuRU.exe:Zone.Identifier, ASCII 15->57 dropped 59 Tries to harvest and steal ftp login credentials 15->59 61 Hides that the sample has been downloaded from the Internet (zone.identifier) 15->61 33 conhost.exe 19->33         started        35 conhost.exe 21->35         started        37 conhost.exe 23->37         started        39 conhost.exe 25->39         started        41 conhost.exe 27->41         started        43 conhost.exe 31->43         started        45 conhost.exe 31->45         started        signatures8 process9
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/aca5d511766675be33f5a22545859964cceabe1cb019064c67739d14e769f0bf/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
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Status:
Malicious
First seen:
2021-05-12 09:04:16 UTC
AV detection:
13 of 47 (27.66%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=vss5kelwmz234m7vuisulbmzmtgovpq4wamqmtdhooorjz3j6c7q._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
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AgentTesla
+ 4'847 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla keylogger persistence spyware stealer trojan
Link:
https://tria.ge/reports/210512-zrdajlb23n/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Adds Run key to start application
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/aca5d511766675be33f5a22545859964cceabe1cb019064c67739d14e769f0bf

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:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Malspam

AgentTesla

Executable exe aca5d511766675be33f5a22545859964cceabe1cb019064c67739d14e769f0bf

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments