MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 faa706545212465c95b5f5e3b8b86be591d00d55601c0cb0922812d7b20e658c. 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: 8


Intelligence 8 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: faa706545212465c95b5f5e3b8b86be591d00d55601c0cb0922812d7b20e658c
SHA3-384 hash: adb4a4583c94c0a169bfd2b6ec1380eae1d89bc7889a4886d81c095e049a89f380347abe0fc665f2055b37416e20dd3f
SHA1 hash: 9e9cde36f3d666867ae9b1c54c5865ed89d4a7ea
MD5 hash: 18283ebe76fc046e236ee55e21e4f8c2
humanhash: golf-red-tango-colorado
File name:Purchase order pdf.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:581'632 bytes
First seen:2020-07-16 07:16:03 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:WNk2k4zUTvUVjBqStHE0imk/+aPOs29M6IO88SO9GdzE0NXiIoYFJ:GWsVN5NC+SM9M7DSGd
Threatray 11'088 similar samples on MalwareBazaar
TLSH 66C49DCC3910719EC54F8D764964DC70A6202C62F7FBE20663C36E9FB93C69BCA151A2
Reporter abuse_ch
Tags:AgentTesla exe


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: mx1619.godns.net
Sending IP: 76.74.198.73
From: escriba.cintia@innova-ing.com
Subject: New Purchase Order
Attachment: Purchase order pdf.7Z (contains "Purchase order pdf.exe")

AgentTesla SMTP exfil server:
us2.smtp.mailhostbox.com:587

Intelligence

File Origin
# of uploads :
1
# of downloads :
79
Origin country :
n/a
Vendor Threat Intelligence
Detection:
AgentTeslaV2
Create hunting rule
Link:
https://www.capesandbox.com/analysis/26434/
Detection(s):
SecuriteInfo.com.CAP_HookExKeylogger.15346.3936.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
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
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
Enabling autorun with Startup directory
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/389387
Signature
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
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)
Sigma detected: Scheduled temp file as task from temp location
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
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 246874 Sample: Purchase order pdf.exe Startdate: 19/07/2020 Architecture: WINDOWS Score: 100 56 Found malware configuration 2->56 58 Multi AV Scanner detection for dropped file 2->58 60 Sigma detected: Scheduled temp file as task from temp location 2->60 62 8 other signatures 2->62 7 Purchase order pdf.exe 5 2->7         started        11 YYtJku.exe 1 2->11         started        13 YYtJku.exe 2->13         started        process3 file4 34 C:\Users\user\AppData\...\zsCSNqqLXXcT.exe, PE32 7->34 dropped 36 C:\Users\...\zsCSNqqLXXcT.exe:Zone.Identifier, ASCII 7->36 dropped 38 C:\Users\user\AppData\Local\...\tmpA298.tmp, XML 7->38 dropped 40 C:\Users\user\...\Purchase order pdf.exe.log, ASCII 7->40 dropped 64 Injects a PE file into a foreign processes 7->64 15 Purchase order pdf.exe 1 5 7->15         started        20 schtasks.exe 1 7->20         started        66 Multi AV Scanner detection for dropped file 11->66 68 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 11->68 70 Machine Learning detection for dropped file 11->70 72 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 11->72 22 YYtJku.exe 2 11->22         started        24 YYtJku.exe 11->24         started        26 YYtJku.exe 13->26         started        signatures5 process6 dnsIp7 42 us2.smtp.mailhostbox.com 208.91.199.224, 49721, 49722, 587 PUBLIC-DOMAIN-REGISTRYUS United States 15->42 30 C:\Users\user\AppData\Roaming\...\YYtJku.exe, PE32 15->30 dropped 32 C:\Users\user\...\YYtJku.exe:Zone.Identifier, ASCII 15->32 dropped 44 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 15->44 46 Moves itself to temp directory 15->46 48 Tries to steal Mail credentials (via file access) 15->48 28 conhost.exe 20->28         started        50 Tries to harvest and steal ftp login credentials 22->50 52 Tries to harvest and steal browser information (history, passwords, etc) 22->52 54 Hides that the sample has been downloaded from the Internet (zone.identifier) 22->54 file8 signatures9 process10
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/faa706545212465c95b5f5e3b8b86be591d00d55601c0cb0922812d7b20e658c/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2020-07-16 07:17:08 UTC
AV detection:
24 of 29 (82.76%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=7ktqmvcscjdfzfnv6xr3rodl4wi5adkvmaoazmesfajnpmqomwga._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
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AgentTesla
+ 11'078 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/200716-vhrl1tw6tj/
Behaviour
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: RenamesItself
Creates scheduled task(s)
Suspicious use of WriteProcessMemory
Suspicious behavior: EnumeratesProcesses
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
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

7z a93d05de71ee9b1ec75ada59860447314b506884aa6af444e8f01f6ed79f9c61

AgentTesla

Executable exe faa706545212465c95b5f5e3b8b86be591d00d55601c0cb0922812d7b20e658c

(this sample)

  
Dropped by
MD5 a9f7500f0f64ab1411d74f074ced2aa4
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/26434/
  
Dropped by
SHA256 a93d05de71ee9b1ec75ada59860447314b506884aa6af444e8f01f6ed79f9c61

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