MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 6f8a04ffbad3c40072dc89bb70495464dcbb9b36416b757af50093fa8c83ba2f. 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: 10


Intelligence 10 IOCs YARA 3 File information Comments

SHA256 hash: 6f8a04ffbad3c40072dc89bb70495464dcbb9b36416b757af50093fa8c83ba2f
SHA3-384 hash: 4f15b7e6827f82fb3f098723d77cfd19132f950059971f15fedcfac1281ef13d3833c0003a1fdfa94d056aad35ac7d50
SHA1 hash: f4c824d0595d5d39c3bb295a597e7429216f48df
MD5 hash: ac8a85cca4fa4903c5bc22ffc8c85a7a
humanhash: princess-muppet-violet-apart
File name:RFQ – Road Construction And Drillingdredging equipments..exe
Download: download sample
Signature AgentTesla
File size:979'456 bytes
First seen:2020-08-27 08:47:44 UTC
Last seen:2020-08-27 10:09:13 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'462 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 24576:yXdgseMnCyDA4vlAqJhLvojGtP4EpxX9sdJ+wm:ytg8RvlB/Lt5Nsd0
Threatray 10'283 similar samples on MalwareBazaar
TLSH 3625CFB5C31BCB6CDD0472F86072486DE5336E56EA3491D8DE0FB0F47A7714AA02998E
Reporter abuse_ch
Tags:AgentTesla exe


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: kkj5.gianthosters.com
Sending IP: 23.128.128.3
From: Alhmmed Esmali <asmaeel_@arconqatar.com>
Reply-To: project-tech@arconqatar.com
Subject: RFQ – Road Construction And Drilling/dredging equipments.
Attachment: RFQ – Road Construction And Drillingdredging equipments..img (contains "RFQ – Road Construction And Drillingdredging equipments..exe")

Intelligence


File Origin
# of uploads :
2
# of downloads :
82
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
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
Enabling autorun by creating a file
Result
Threat name:
AgentTesla
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Found malware configuration
Injects a PE file into a foreign processes
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
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 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:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 278591 Sample: RFQ #U2013 Road Constructio... Startdate: 27/08/2020 Architecture: WINDOWS Score: 100 33 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->33 35 Found malware configuration 2->35 37 Antivirus detection for dropped file 2->37 39 10 other signatures 2->39 7 RFQ #U2013 Road Construction And Drillingdredging equipments..exe 7 2->7         started        process3 file4 19 C:\Users\user\AppData\Roaming\YfhfoXJ.exe, PE32 7->19 dropped 21 C:\Users\user\...\YfhfoXJ.exe:Zone.Identifier, ASCII 7->21 dropped 23 C:\Users\user\AppData\Local\...\tmp5A1F.tmp, XML 7->23 dropped 25 RFQ #U2013 Road Co...equipments..exe.log, ASCII 7->25 dropped 41 Injects a PE file into a foreign processes 7->41 11 RFQ #U2013 Road Construction And Drillingdredging equipments..exe 2 7->11         started        15 schtasks.exe 1 7->15         started        signatures5 process6 dnsIp7 27 smtp.otakeqypt.com 11->27 29 us2.smtp.mailhostbox.com 208.91.199.223, 49734, 587 PUBLIC-DOMAIN-REGISTRYUS United States 11->29 31 192.168.2.1 unknown unknown 11->31 43 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 11->43 45 Tries to steal Mail credentials (via file access) 11->45 47 Tries to harvest and steal ftp login credentials 11->47 49 Tries to harvest and steal browser information (history, passwords, etc) 11->49 17 conhost.exe 15->17         started        signatures8 process9
Threat name:
ByteCode-MSIL.Spyware.Noon
Status:
Malicious
First seen:
2020-08-27 08:49:08 UTC
AV detection:
23 of 28 (82.14%)
Threat level:
  2/5
Result
Malware family:
agenttesla
Score:
  10/10
Tags:
keylogger stealer spyware trojan family:agenttesla
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
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
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
Author:JPCERT/CC Incident Response Group
Description:detect Agenttesla in memory
Reference:internal research
Rule name:CAP_HookExKeylogger
Author:Brian C. Bell -- @biebsmalwareguy
Reference:https://github.com/DFIRnotes/rules/blob/master/CAP_HookExKeylogger.yar
Rule name:win_agent_tesla_w1
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

Executable exe 6f8a04ffbad3c40072dc89bb70495464dcbb9b36416b757af50093fa8c83ba2f

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments