MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 68624d31f561c1e2b735c18ecef36cc6c648803a19b34d1d75bf5815f3037675. 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: 68624d31f561c1e2b735c18ecef36cc6c648803a19b34d1d75bf5815f3037675
SHA3-384 hash: cfef2d5139883cf5ee90a3d9b1a304c884904b806b2c3c98164d43e5f1faef6968db4906ba94a84bb55f577490023e85
SHA1 hash: 3a37c6fe8e5120e828b6b21ccd8c440f332e86dc
MD5 hash: 1029af374ae0accd05afd9874ac61f3f
humanhash: september-harry-solar-lactose
File name:Universal170920.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:503'808 bytes
First seen:2020-08-17 08:07:19 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:Zq34EcmZHAFaxmVmie9bngPlXzJ3mVUgHuJiEGEs/3x+tkRm45WSvVX0wI1lA6kR:Z64EcmZHAFaxmVmie9bngPlN1EEVsZ+N
Threatray 10'643 similar samples on MalwareBazaar
TLSH 4EB48B4A38D0E39ED1E64FB948549C1623FA2F2E0516990FDC6B39D7B3D9BC1BE20446
Reporter abuse_ch
Tags:AgentTesla exe


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: abaad.om
Sending IP: 37.49.230.200
From: Syamkumar Korat <syam.kumar@abaad.om>
Subject: Bank Transfer Advice
Attachment: Universal170920.Z (contains "Universal170920.exe")

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

Intelligence

File Origin
# of uploads :
1
# of downloads :
68
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/46785/
Detection(s):
Sanesecurity.Rogue.0hr.20200817-0907.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Creating a file in the %AppData% directory
Creating a file in the %temp% directory
Launching a process
Creating a process with a hidden window
Deleting a recently created file
Unauthorized injection to a recently created process
Creating a file
Using the Windows Management Instrumentation requests
Enabling autorun by creating a file
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/432816
Signature
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects a PE file into a foreign processes
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)
Sigma detected: Scheduled temp file as task from temp location
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)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AgentTesla
Yara detected AntiVM_3
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 268716 Sample: Universal170920.exe Startdate: 17/08/2020 Architecture: WINDOWS Score: 100 64 Found malware configuration 2->64 66 Sigma detected: Scheduled temp file as task from temp location 2->66 68 Yara detected AgentTesla 2->68 70 5 other signatures 2->70 7 Universal170920.exe 7 2->7         started        11 YYtJku.exe 5 2->11         started        13 YYtJku.exe 4 2->13         started        process3 file4 42 C:\Users\user\AppData\Roaming\tgPdWfy.exe, PE32 7->42 dropped 44 C:\Users\user\...\tgPdWfy.exe:Zone.Identifier, ASCII 7->44 dropped 46 C:\Users\user\AppData\Local\...\tmp9B6B.tmp, XML 7->46 dropped 48 C:\Users\user\...\Universal170920.exe.log, ASCII 7->48 dropped 72 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 7->72 74 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 7->74 76 Injects a PE file into a foreign processes 7->76 15 Universal170920.exe 2 5 7->15         started        20 schtasks.exe 1 7->20         started        78 Machine Learning detection for dropped file 11->78 22 YYtJku.exe 11->22         started        24 schtasks.exe 1 11->24         started        26 YYtJku.exe 11->26         started        28 schtasks.exe 13->28         started        30 YYtJku.exe 13->30         started        signatures5 process6 dnsIp7 50 mail.transfastc.com 108.167.160.43, 49734, 49735, 587 UNIFIEDLAYER-AS-1US United States 15->50 38 C:\Users\user\AppData\Roaming\...\YYtJku.exe, PE32 15->38 dropped 40 C:\Users\user\...\YYtJku.exe:Zone.Identifier, ASCII 15->40 dropped 52 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 15->52 54 Moves itself to temp directory 15->54 56 Tries to steal Mail credentials (via file access) 15->56 32 conhost.exe 20->32         started        58 Tries to harvest and steal ftp login credentials 22->58 60 Tries to harvest and steal browser information (history, passwords, etc) 22->60 62 Hides that the sample has been downloaded from the Internet (zone.identifier) 22->62 34 conhost.exe 24->34         started        36 conhost.exe 28->36         started        file8 signatures9 process10
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/68624d31f561c1e2b735c18ecef36cc6c648803a19b34d1d75bf5815f3037675/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2020-08-17 03:06:58 UTC
AV detection:
24 of 29 (82.76%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=nbre2mpvmha6fnzvyghm543my3derab2dgzu2hlvx5mbl4ydoz2q._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
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e8f9ccab47a8ec10861607e8de21c6617cd36e4eefbffe90144f357f3566657d
AgentTesla
+ 10'633 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
keylogger stealer trojan spyware family:agenttesla persistence
Link:
https://tria.ge/reports/200817-rp186etnfs/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Creates scheduled task(s)
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/68624d31f561c1e2b735c18ecef36cc6c648803a19b34d1d75bf5815f3037675

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 fe07a568a1b28b5896f53ed9ef1be70fbda09f99f176c34e7e3f81e6ebfed81c

AgentTesla

Executable exe 68624d31f561c1e2b735c18ecef36cc6c648803a19b34d1d75bf5815f3037675

(this sample)

  
Dropped by
MD5 3bda3401e6fc9807d239d8f346b1fe84
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/46785/
  
Dropped by
SHA256 fe07a568a1b28b5896f53ed9ef1be70fbda09f99f176c34e7e3f81e6ebfed81c

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